Patent Description:
In existing pressure-baking cookers, a baking assembly is provided on the cover and radiates heat from the cover towards the cooker body. When the baking assembly is being heated, heat is also radiated upwards towards a cover body, wherein numerous plastic parts are located and susceptible to be affected, creating safety risks.

In other words, a technical problem resides in the fact that plastic parts inside the cover body of an existing cooking device are greatly affected by temperature.

A main objective of the invention is to provide a cooking device, to solve the problem that plastic parts inside the cover body of existing cooking devices are greatly affected by temperature.

To achieve this objective, according to one aspect of the invention, it is provided a cooking device according to claim <NUM>.

By equipping the cover with both the baking assembly and the inner cover, the cooking device can perform cooking by both baking and boiling. As the inner cover is detachably arranged below the baking assembly, when the cooking device is needed to perform cooking by baking, the inner cover is detached, so as to use the baking assembly to bake food materials inside the device body. When the cooking device is needed to perform cooking by boiling, the inner cover is mounted below the baking assembly, so as to achieve conventional cooking. The sealing structure seals the gap between the venting assembly and the venting passage and prevents air from entering inside the cover, so as to reduce the impact of humid air on parts inside the cover and to ensure the working reliability of the cover. The sealing structure can also well insulate heat transmission between the baking assembly and the cover body, so as to reduce the impact of heat on parts inside the cover body and protect the cover body, therefore improving the reliability of the functioning of the cover body.

Further, the baking assembly is provided with a through hole that is in communication with the venting passage and through which the venting assembly passes, the sealing structure seals the gap between the cover body and the baking assembly. The sealing structure can reduce air entering between the baking assembly and the cover body, thereby reducing the impact of humid air on structural elements of the baking assembly and improving the reliability of the functioning of the baking assembly. The sealing structure not only seals the gap between the baking assembly and the cover body, but also seals the venting assembly and the venting passage.

Further, the sealing structure is clamped between the cover body and the baking assembly, and the venting assembly passes through the sealing structure and is tight fitted with the sealing structure. With the sealing structure clamped between the cover body and the baking assembly, the gap between the baking assembly and the cover body can be sealed, thereby preventing air from entering into the gap between the cover body and the baking assembly. In addition, the sealing structure can also form a support to the cover body, so that the baking assembly is reliably connected with the cover body.

Further, the cover body comprises an outer cover and an inner liner arranged below the outer cover, and the sealing structure seals the gap between the baking assembly and the outer cover or the inner liner. This disposition can reduce air entering the space inside the cover body, thereby avoiding the impact of humid air on parts inside the cover body, and improving the reliability of the functioning of parts inside the cover body.

Further, the venting assembly is provided with a mounting slot inside which at least a part of the sealing structure is clamped, and the sealing structure is detachable together with the inner cover. Since the sealing structure is detached together with the inner cover, when the cooking device performs cooking by baking, the high temperature produced by the baking assembly will not affect the sealing structure, thus improving the reliability of the functioning of the sealing structure.

Further, the venting assembly comprises a pressure limiting valve seat and an opening disabling valve seat, the sealing structure can be an integral component or comprises two separate sealing rings for each of the valve seats.

Further, the orthographic projection of the heating element on the heat shield does not coincide with the orthographic projection of the sealing structure on the heat shield. This disposition can increase the time needed for heat radiated by the heating element to be transmitted to the sealing structure, reduce the temperature transmitted to the sealing structure and thus lengthen the service life of the sealing structure.

Further, the sealing structure is located above the heating element. This disposition can reduce heat transmission, prevent the sealing structure from being directly contacted by high temperature, and thus improve the reliability of the functioning of the sealing structure.

Further, the sealing structure has a body section that is clamped between the cover body and the baking assembly and a sealing section extending from an inner periphery of the body section and tight fitted with the venting assembly. The body section is clamped between the cover body and the baking assembly, so as to seal the gap between the cover body and the baking assembly. The sealing section is tight fitted with the venting assembly, so as to seal the gap between the venting assembly and the cover body and/or the baking assembly.

Further, the sealing structure further has a first bending section located on top of the body section and a second bending section located at the bottom of the body section, the bending direction of the first bending section is opposite to that of the second bending section, the upper surface of the first bending section abuts against the lower surface of the cover body, and the lower surface of the second bending section abuts against the upper surface of the baking assembly. The upper surface of the first bending section abuts against the lower surface of the cover body, so that the sealing structure and the cover body are connected in a gapless manner to achieve the sealing. Air is thus prevented from entering the gap between the cover body and the baking assembly through the gap between the sealing structure and the cover body. The lower surface of the second bending section abuts against the upper surface of the baking assembly, so that the sealing structure and the baking assembly are connected in a gapless manner to achieve the sealing.

Further, the one among the first bending section and the second bending section that bends towards the venting assembly is the sealing section, which is interference fitted with the venting assembly, so as to prevent steam from entering the space between the cover body and the baking assembly. The sealing section can seal the gap between the cover body and the venting assembly, and prevent air from flowing back into the space between the cover body and the baking assembly.

Further, the venting assembly is provided with a mounting flange, and the sealing section is provided with an overlapping flange extending towards the venting assembly that overlaps with the mounting flange and is interference fitted with the venting assembly. The fitting between the mounting flange and the overlapping flange renders the connection between the sealing structure and the venting assembly tighter, makes it difficult to detach the sealing structure from the venting assembly, and can also improve the sealing effect of the sealing structure.

Further, the heat shield comprises a plurality of reflecting shells that are sequentially stacked, and the sealing structure seals the gaps between the plurality of reflecting shells. This disposition can effectively cool the hot air, so as to ensure that heat will be reduced when the hot air is transmitted to the cover body and will not affect the cover body. By providing heat barrier gap, the temperature transmitted to the cover body can be lowered, improving the reliability of the functioning of the cover body.

Further, the sealing structure has a cooperating section extending downward from a body part of the sealing structure so as to seal the gap between two adjacent reflecting shells. This disposition allows one sealing structure to seal the gaps between a plurality of parts, thereby reduces the number of sealing elements, as well as the assembly cost and difficulty.

Further, the cooperating section has a clamping section extending away from the venting assembly, at least one reflecting shell extending into a slot formed between the clamping section and the body section, the clamping section extending into the gap between two adjacent reflecting shells and pressed against the reflecting shells so as to seal the gap between two adjacent reflecting shells. This disposition reduces humid air entering between two reflecting shells, and avoids the impact of humid air on structural elements between the reflecting shells.

Further, the baking assembly further comprises a support member by which two adjacent reflecting shells are connected. An air barrier is formed between two adjacent reflecting shells thanks to the support member, so as to reduce heat transmitted to the reflecting shell close to the cover body and heat transmitted to the cover body, so that the cover body may function reliably.

Further, the support member has a position limiting hole for pressure limiting valve seat and a position limiting hole for opening disabling valve seat, which respectively lets through the pressure limiting valve seat and the opening disabling valve seat. The position limiting hole for pressure limiting valve seat has a first annular flange extending towards the pressure limiting valve seat, and the position limiting hole for opening disabling valve seat has a second annular flange extending towards the opening disabling valve seat. The first annular flange and the second annular flange are provided to prevent the pressure limiting valve seat and the opening disabling valve seat from swaying, and thereby improve the reliability of the functioning of the pressure limiting valve seat and the opening disabling valve seat.

Further, the sealing structure has a body part and a plurality of position limiting feet extending from the body part towards the cover body and cooperating with the cover body in a position limiting manner, the position limiting feet being arranged along the circumference of the sealing structure. The position limiting feet are connected with the cover body, so as to prevent the sealing structure from detaching from the cover body, and improve the tightness of the connection between the sealing structure and the cover body.

Further, the body part has an extension hole for pressure limiting valve seat and an extension hole for opening disabling valve seat, the pressure limiting valve seat on the inner cover passes through the extension hole for pressure limiting valve seat to be connected with the pressure limiting valve, the opening disabling valve seat on the inner cover passes through the extension hole for opening disabling valve seat to be connected with the opening disabling valve. The sealing structure seals the gap between the pressure limiting valve seat and the through hole, as well as the gap between the opening disabling valve seat and the through hole, so as to reduce heat transmitted to the cover body, and prevent hot air from affecting parts inside the cover body.

Further, the body part has a first circumferential abutting flange surrounding the pressure limiting valve seat extension hole, and a second circumferential abutting flange surrounding the opening disabling valve seat extension hole. The first circumferential abutting flange and the second circumferential abutting flange abut against the cover body, so that the sealing structure reliably seals the through hole.

Further, at least a part of the first circumferential abutting flange extends along a boundary of the body part; and/or at least a part of the second circumferential abutting flange extends along a boundary of the body part; and/or the parts of the first circumferential abutting flange and the second circumferential abutting flange that are near each other are spaced apart from each other, so as to form a deformation gap between them. The deformation gap also makes it difficult to detach the sealing structure from the pressure limiting valve seat and the opening disabling valve seat, improving the reliability of the sealing structure.

Further, the inner liner may comprise an abutting cylinder extending towards the outer cover and tight fitted with an abutting rib arranged on the outer cover, so asto seal the gap between the outer cover and the inner liner. Preferably the abutting rib also cooperates sealingly with the sealing structure.

Further, the heat shield or the cover body may comprise a sealing cylinder, so as to seal the gap between the cover body and the baking assembly. These additional sealing elements may improve the tightness between the parts.

The accompanying drawings of the specification, which form part of the application, are presented for further understanding of the invention. The illustrative embodiments of the invention and their description help to explain the invention, and do not constitute an undue limitation of the invention. In the accompanying drawings:.

The above accompanying drawings include the following references:
<NUM>: cover; <NUM>: cover body; <NUM>: first plug terminal; <NUM>: pressure limiting valve mounting hole; <NUM>: opening disabling valve mounting hole; <NUM>: outer cover; <NUM>: venting hole; <NUM>: abutting rib; <NUM>: abutting face; <NUM>: sealing rib; <NUM>: inner liner; <NUM>: abutting cylinder; <NUM>: annular supporting rib; <NUM>: supporting section; <NUM>: annular protruding rib; <NUM>: flanging section; <NUM>: stepped face; <NUM>: rotary bar; <NUM>: baking assembly; <NUM>: heating element; <NUM>: heat shield; <NUM>: first reflecting shell; <NUM>: second reflecting shell; <NUM>: through hole; <NUM>: pressure limiting valve ceding hole; <NUM>: first passing hole; <NUM>: first sealing ring rib; <NUM>: second passing hole; <NUM>: second sealing ring rib; <NUM>: support member; <NUM>: position limiting hole for pressure limiting valve seat; <NUM>: position limiting hole for opening disabling valve seat; <NUM>: first annular flange; <NUM>: second annular flange; <NUM>: fixing clamp; <NUM>: inner cover; <NUM>: pressure limiting valve seat; <NUM>: opening disabling valve seat; <NUM>: venting assembly; <NUM>: mounting flange; <NUM>: fixing screw; <NUM>: pressure limiting sealing ring; <NUM>: ring body; <NUM>: position limiting rib; <NUM>: opening disabling sealing ring; <NUM>: narrowed section; <NUM>: pressure limiting valve; <NUM>: sealing structure; <NUM>: position limiting foot; <NUM>: body part; <NUM>: cooperating section; <NUM>: clamping section; <NUM>: extension hole for pressure limiting valve seat; <NUM>: extension hole for opening disabling valve seat; <NUM>: first circumferential abutting flange; <NUM>: second circumferential abutting flange; <NUM>: connecting section; <NUM>: reinforcing section; <NUM>: extension section; <NUM>: handle; <NUM>: steam cover; <NUM>: heat insulating cotton; <NUM>: rotary cover; <NUM>: opening disabling valve; <NUM>: body section; <NUM>: sealing section; <NUM>: guiding oblique face; <NUM>: overlapping flange; <NUM>: cooperating section; <NUM>: clamping section; <NUM>: abutting section; <NUM>: mounting ring slot; <NUM>: slot; <NUM>: sealing element; <NUM>: main section; <NUM>: thinned section; <NUM>: sealing cylinder.

It should be noted that, when there is no conflict, the embodiments in the application and their features can be combined with each other. The invention will be described below in reference to the accompanying drawings and in connection with embodiments.

It should be noted that, unless otherwise specifically indicated, all technical and scientific terms used in the application have the same meanings as commonly understood by an ordinary person skilled in the art in the technical field to which the invention belongs.

In the application, unless otherwise indicated, directional terms used such as "upper," "lower," "top," and "bottom" generally refer to the directions shown in the accompanying drawings, or refer to the vertical or perpendicular direction of a part itself, or the direction of gravity. Similarly, to facilitate understanding and description, "inner" and "outer" refer to the inside and outside of the contour of the respective part itself. However, those directional terms are not used to limit the invention.

To solve the problem that the cover body of an existing cooking device is greatly affected by temperature, the invention provides a cooking device.

As shown in <FIG>, a cooking device comprises a cover <NUM> and a body on which the cover <NUM> is arranged and capable of opening and closing the body. The device body comprises a heating structure. The cover <NUM> comprises a cover body <NUM>, a baking assembly <NUM>, and an inner cover <NUM>. The cover body <NUM> is provided with a venting passage. The baking assembly <NUM> is provided inside the cover body <NUM> and comprises a heat shield <NUM> and a heating element <NUM> arranged below the heat shield <NUM>. The inner cover <NUM> is detachably arranged below the baking assembly <NUM> and provided with a venting assembly <NUM> extending towards the cover body <NUM>. A sealing structure <NUM> is provided between the venting assembly <NUM> and the venting passage.

Since the cover <NUM> is provided with both the baking assembly <NUM> and the inner cover <NUM>, the cooking device can not only perform cooking by baking, but also perform cooking by boiling. As the inner cover <NUM> is detachably arranged below the baking assembly <NUM>, when the cooking device is needed to perform cooking by baking, the inner cover <NUM> is detached, so as to use the baking assembly <NUM> to bake food materials inside the device body. When the cooking device is needed to perform pressurized cooking, the inner cover <NUM> is mounted below the baking assembly <NUM>, so as to achieve conventional cooking. The sealing structure <NUM> can well insulate heat transmission between the baking assembly <NUM> and the cover body <NUM>, so as to reduce the impact of heat on parts inside the cover body <NUM> and protect the cover body <NUM>, therefore improving the reliability of the functioning of the cover body <NUM>. Positioning the sealing structure <NUM> above a bottom face of the baking assembly <NUM> can reduce heat radiated by the heating element <NUM> directly to the sealing structure <NUM>, thereby lengthen the service life of the sealing structure <NUM>.

The sealing structure <NUM> is clamped between the cover body <NUM> and the baking assembly <NUM>. The venting assembly <NUM> passes through the sealing structure <NUM> and is tight fitted with the sealing structure <NUM>. With the sealing structure <NUM> clamped between the cover body <NUM> and the baking assembly <NUM>, the gap between the baking assembly <NUM> and the cover body <NUM> can be sealed, thereby preventing air from entering into the gap between the cover body <NUM> and the baking assembly <NUM>. In addition, the sealing structure <NUM> can also form a support to the cover body <NUM>, so that the baking assembly <NUM> is reliably connected with the cover body <NUM>.

As shown in <FIG>, the cover body <NUM> comprises an outer cover <NUM> and an inner liner <NUM> arranged below the outer cover <NUM>. The sealing structure <NUM> seals the gap between the baking assembly <NUM> and the outer cover <NUM> or the inner liner <NUM>. This disposition can reduce air entering the space inside the cover body <NUM>, thereby preventing humid air from affecting parts inside the cover body <NUM>, and improving the reliability of the functioning of parts inside the cover body <NUM>.

Optionally, the sealing structure <NUM> is a sealing ring.

As shown in <FIG>, the orthographic projection of the heating element <NUM> on the heat shield <NUM> does not coincide with the orthographic projection of the sealing structure <NUM> on the heat shield <NUM>. This disposition can increase the time needed for heat radiated by the heating element <NUM> to be transmitted to the sealing structure <NUM>, reduce the temperature transmitted to the sealing structure <NUM>, and thus lengthen the service life of the sealing structure <NUM>.

Specifically, the sealing structure <NUM> is located above the heating element. This disposition can prevent the heating element <NUM> from being in direct contact with the sealing structure <NUM>, thus reduce heat transmission and prevent direct contact of high temperature with the sealing structure <NUM>. The reliability of the functioning of the sealing structure <NUM> is thus improved.

As shown in <FIG>, the heat shield <NUM> comprises a plurality of reflecting shells that are sequentially stacked, and the distance between two adjacent reflecting shells is not less than <NUM>. Having the distance between two adjacent reflecting shells limited to above <NUM> can effectively cool down the hot air, so as to ensure that heat has been reduced when the hot air is transmitted to the cover body <NUM>, and will not affect the cover body <NUM>. Of course, the distance between two adjacent reflecting shells should not be too large either, so as to avoid increasing the volume of the cover <NUM>. It should be noted that, in all the embodiments described in the application, the heat shield <NUM> comprises two stacked reflecting shells, as an example. That is to say, in the embodiments of the application described below, the heat shield <NUM> comprises a first reflecting shell <NUM> and a second reflecting shell <NUM>.

It should be noted that, the venting assembly <NUM> comprises a pressure limiting valve seat <NUM> and an opening disabling valve seat <NUM>.

As shown in <FIG>, the baking assembly <NUM> further comprises a support member <NUM> by which two adjacent reflecting shells are connected. In this embodiment, the support member <NUM> forms an air barrier between the two adjacent reflecting shells, so as to reduce heat transmitted to the reflecting shell close to the cover body <NUM> and heat transmitted to the cover body <NUM>, so that the cover body <NUM> functions reliably.

As shown in <FIG>, the venting assembly <NUM> comprises a pressure limiting valve seat <NUM> and an opening disabling valve seat <NUM>. The support member <NUM> comprises a position limiting hole <NUM> for the pressure limiting valve and a position limiting hole <NUM> for the opening disabling valve seat, the pressure limiting valve seat <NUM> and the opening disabling valve seat <NUM> respectively passes through its corresponding position limiting hole. The position limiting hole <NUM> for pressure limiting valve seat has a first annular flange <NUM> extending towards the pressure limiting valve seat <NUM>. The position limiting hole <NUM> for opening disabling valve seat has a second annular flange <NUM> extending towards the opening disabling valve seat <NUM>. In other words, the support member <NUM> is sleeved to the pressure limiting valve seat <NUM> and the opening disabling valve seat <NUM>, while the first annular flange <NUM> and the second annular flange <NUM> can prevent the pressure limiting valve seat <NUM> and the opening disabling valve seat <NUM> from swaying, so as to improve the reliability of the functioning of the pressure limiting valve seat <NUM> and the opening disabling valve seat <NUM>. In addition, the first annular flange <NUM> and the second annular flange <NUM> offer a certain tolerance in the fitting between the support member <NUM>, and the pressure limiting valve seat <NUM> and the opening disabling valve seat <NUM>. The support member <NUM> can also reduce the impact of the heat inside the baking assembly <NUM> on the pressure limiting valve seat <NUM> and the opening disabling valve seat <NUM>, so as to protect the pressure limiting valve seat <NUM> and the opening disabling valve seat <NUM>.

In this embodiment, the heat shield <NUM> is provided with through holes <NUM> for the pressure limiting valve seat <NUM> and the opening disabling valve seat <NUM> to pass through, and the support member <NUM> is arranged in a corresponding position to the through holes <NUM>, so as to facilitate the passing-through of the pressure limiting valve seat <NUM> and the opening disabling valve seat <NUM>.

As shown in <FIG>, the sealing structure <NUM> comprises a body part <NUM> and a plurality of position limiting feet <NUM> extending from the body part <NUM> towards the cover body <NUM> and cooperating with the cover body <NUM> in a position limiting manner. The position limiting feet <NUM> are provided along the circumference of the sealing structure <NUM>. The position limiting feet <NUM> are connected with the cover body <NUM>, for example by being inserted in corresponding holes arranged on an inner side of the cover body <NUM>, so as to prevent the sealing structure <NUM> from detaching from the cover body <NUM>, and improve the tightness of the connection between the sealing structure <NUM> and the cover body <NUM>.

As shown in <FIG>, the position limiting feet <NUM> have a connecting section <NUM>, a reinforcing section <NUM>, and an extension section <NUM> that are sequentially connected. The connecting section <NUM> is connected with the body part <NUM>. The outer diameter of the connecting section <NUM> is smaller than that of the reinforcing section <NUM>. The reinforcing section <NUM> has a diameter-reducing section wherein the outer diameter gradually decreases towards the extension section <NUM>. This disposition increases the tightness of the connection between the position limiting feet <NUM> and the cover body <NUM>, and reduces the risk of detachment between the position limiting feet <NUM> and the cover body <NUM>.

As shown in <FIG>, the body part <NUM> further comprises an extension hole <NUM> for the pressure limiting valve seat and an extension hole <NUM> for the opening disabling valve. The pressure limiting valve seat <NUM> on the inner cover <NUM> passes through the extension hole <NUM> to connect with a pressure limiting valve <NUM>. The opening disabling valve seat <NUM> on the inner cover <NUM> passes through the extension hole <NUM> to connect with an opening disabling valve <NUM>. The position limiting feet <NUM> protrude from the body part <NUM>. The sealing structure <NUM> seals the gap between the pressure limiting valve seat <NUM> and the through hole <NUM>, as well as the gap between the opening disabling valve seat <NUM> and the through hole <NUM>, so as to reduce heat transmitted to the cover body <NUM> and prevent hot air from affecting parts inside the cover body <NUM>.

As shown in <FIG>, the body part <NUM> has a first circumferential abutting flange <NUM> surrounding the extension hole <NUM> for the pressure limiting valve seat, and a second circumferential abutting flange <NUM> surrounding the extension hole <NUM> for the opening disabling valve seat. The first circumferential abutting flange <NUM> and the second circumferential abutting flange <NUM> abut against the cover body <NUM>, so that the sealing structure <NUM> reliably seals the through holes <NUM>.

Specifically, the side of the body part <NUM> that abuts against the baking assembly <NUM> is a flat face so as to reduce the gap between the sealing structure <NUM> and the baking assembly <NUM>. Thus, heat flowing into the cover body <NUM> through the gap between the sealing structure <NUM> and the baking assembly <NUM> is reduced, thereby reducing the impact of heat on parts inside the cover body <NUM>, so that the cover body <NUM> functions reliably.

As shown in <FIG>, at least part of the first circumferential abutting flange <NUM> extends along a boundary of the body part <NUM>. In other words, at least part of the first circumferential abutting flange <NUM> is located at a boundary of the body part <NUM>. The first circumferential abutting flange <NUM> can also prevent the pressure limiting valve seat <NUM> from swaying and improve the reliability of the functioning of the pressure limiting valve seat <NUM>.

As shown in <FIG>, at least part of the second circumferential abutting flange <NUM> extends along a boundary of the body part <NUM>. In other words, at least part of the second circumferential abutting flange <NUM> is located at a boundary of the body part <NUM>. The second circumferential abutting flange <NUM> can also prevent the opening disabling valve seat <NUM> from swaying and improve the reliability of the functioning of the opening disabling valve seat <NUM>.

As shown in <FIG>, the parts of the first circumferential abutting flange <NUM> and the second circumferential abutting flange <NUM> that are near each other are spaced apart, so as to form a deformation gap between them. The deformation gap increases the universality of the sealing structure <NUM>, and offers a certain tolerance for the fitting between the pressure limiting valve seat <NUM> and the opening disabling valve seat <NUM>. In addition, the deformation gap also makes it difficult for the sealing structure <NUM> to be detached from the pressure limiting valve seat <NUM> and the opening disabling valve seat <NUM>, thereby improves the reliability of the sealing structure <NUM>.

As shown in <FIG>, the first circumferential abutting flange <NUM> has a bent edge. The bent edge of the first circumferential abutting flange <NUM> creates a certain buffer gap between the pressure limiting valve seat <NUM> and parts surrounding it so as to prevent other parts from colliding with the pressure limiting valve seat <NUM>, and thus improves the reliability of the functioning of the pressure limiting valve seat <NUM>. At the same time it can prevent other parts from swaying.

In the specific embodiment shown in <FIG>, the position limiting feet <NUM> extend towards the cover body <NUM> from the first circumferential abutting flange <NUM> and/or the second circumferential abutting flange <NUM>.

In the embodiment shown in <FIG>, the inner cover <NUM> is detachably connected with the baking assembly <NUM> by means of a fixing screw <NUM>, so that the cooking device can switch between baking and pressure cooking.

This embodiment differs from the first embodiment in that no support member <NUM> is provided, and the sealing structure <NUM> performs the function of the support member <NUM> as well.

As shown in <FIG>, the sealing structure <NUM> has a cooperating section <NUM> extending downward from the body part <NUM> of the sealing structure <NUM> so as to seal the gap between two adjacent reflecting shells. This disposition allows one sealing structure <NUM> to seal the gaps between a plurality of parts, reduces the number of sealing elements, and thus reduces assembly cost and difficulty.

As shown in <FIG>, the cooperating section <NUM> has a clamping section <NUM> extending away from the venting assembly <NUM>. At least one reflecting shell extends into a slot formed between the clamping section <NUM> and the body part <NUM>. The clamping section <NUM> extends into the gap between the two adjacent reflecting shells and is pressed against the reflecting shells, so as to seal the gap between the two adjacent reflecting shells. This disposition reduces humid air entering between the two reflecting shells, and prevent humid air from affecting structural elements located between the reflecting shells. The clamping section <NUM> replaces the separately provided support member <NUM>, and reduces the use and fitting of structural elements, thus makes it easier and more convenient to assemble the cooking device.

This embodiment differs from the first embodiment in that the sealing structure <NUM> can be detached together with the inner cover.

Specifically, the venting assembly <NUM> is providing with a mounting slot (not shown in the figures) inside which at least a part of the sealing structure <NUM> is snap-fitted, so as to detach the sealing structure <NUM> together with the inner cover <NUM>. With this disposition, when the cooking device performs cooking by baking, the inner cover <NUM> is detached together with the sealing structure <NUM>, so as to reduce the impact of high temperature of the baking assembly <NUM> and improve the reliability of the functioning of the sealing structure.

This embodiment differs from the first embodiment in that the specific structure of the sealing structure <NUM> is different.

As shown in <FIG>, the sealing structure <NUM> has a body section <NUM> that clamped between the cover body <NUM> and the baking assembly <NUM> and a sealing section <NUM> extending from an inner periphery of the body section <NUM> and tight fitted with the venting assembly <NUM>. The body section <NUM> is clamped between the cover body <NUM> and the baking assembly <NUM> so as to seal the gap between the cover body <NUM> and the baking assembly <NUM>. The sealing section <NUM> is tight fitted with the venting assembly <NUM> so as to seal the gap between the venting assembly <NUM> and the cover body <NUM> and/or the baking assembly <NUM>. In addition, the body section <NUM> can also support the cover body <NUM> to a certain extent and reduce the deformation of the cover body <NUM>, so that the cover body <NUM> can be reliably used.

As shown in <FIG>, the sealing structure <NUM> has the body section <NUM>, as well as a first bending section located at the top of the body section <NUM> and a second bending section located at the bottom of the body section <NUM>, the bending direction of the first bending section is opposite to that of the second bending section. The upper surface of the first bending section abuts against the lower surface of the cover body <NUM>. The lower surface of the second bending section abuts against the upper surface of the baking assembly <NUM>. The upper surface of the first bending section abuts against the lower surface of the cover body <NUM>, so that the sealing structure <NUM> and the cover body <NUM> are sealed with no gap, and air cannot enter the gap between the cover body <NUM> and the baking assembly <NUM> by passing through a gap between the sealing structure <NUM> and the cover body <NUM>. The lower surface of the second bending section abuts against the upper surface of the baking assembly <NUM>, so that the sealing structure <NUM> and the baking assembly <NUM> are sealed with no gap, and air cannot enter the gap between the cover body <NUM> and the baking assembly <NUM> through a gap between the sealing structure <NUM> and the baking assembly <NUM>. Thus the sealing of the cover <NUM> is improved, and the impact of air on the space inside the baking assembly <NUM> and the cover body <NUM> can be reduced.

As shown in <FIG>, the one among the first bending section and the second bending section that bends towards the venting assembly <NUM> is the sealing section <NUM>, which is interference fitted with the venting assembly <NUM>, so as to prevent steam from entering the space between the cover body <NUM> and the baking assembly <NUM>. The sealing section <NUM> can seal the gap between the cover body <NUM> and the venting assembly <NUM>, and prevent air from flowing back into the space between the cover body <NUM> and the baking assembly <NUM>. The sealing section <NUM> can also seal the gap between the baking assembly <NUM> and a security valve, so as to prevent air from flowing back into the baking assembly <NUM>. Therefore, the impact of water content in air on parts inside the baking assembly <NUM> is reduced and the service life of parts inside the baking assembly <NUM> is prolonged.

As shown in <FIG>, the baking assembly <NUM> comprises a heat shield <NUM> and a heating element <NUM>. The sealing structure <NUM> is clamped between the cover body <NUM> and the heat shield <NUM>. This disposition can reduce direct radiation of the heating element <NUM> to the sealing structure <NUM>, reduce the effect of high temperature on the sealing structure <NUM>, and lengthen the service life of the sealing structure <NUM>.

In this embodiment, the heat shield <NUM> comprises a first reflecting shell <NUM> and a second reflecting shell <NUM>, which are connected with each other and spaced apart.

It should be noted that, in this embodiment, the heat shield <NUM> only has two reflecting shells, namely, the first reflecting shell <NUM> and the second reflecting shell <NUM>.

As shown in <FIG>, the sealing section <NUM> has an oblique guiding face <NUM> extending obliquely upwards from a bottom face of the sealing section <NUM> towards the venting assembly <NUM>, so as to facilitate the passing through of the venting assembly <NUM>. The oblique guiding face <NUM> extends obliquely upwards towards the venting assembly <NUM> so as to facilitate the venting assembly <NUM> passing through the sealing structure <NUM> to extend upwards and to be interference fitted with a pressure limiting valve seat to improve the sealing of the sealing structure <NUM>.

As shown in <FIG>, the baking assembly <NUM> comprises the first reflecting shell <NUM> and the second reflecting shell <NUM> that are connected with each other. The second reflecting shell <NUM> is located below the first reflecting shell <NUM>. The first reflecting shell <NUM> has a first passing hole <NUM> for the venting assembly <NUM> to pass through. The second reflecting shell <NUM> has a second passing hole <NUM> for the venting assembly <NUM> to pass through. The second reflecting shell <NUM> has a second sealing ring rib <NUM>. The second sealing ring rib <NUM> extends upwards from the boundary of the second passing hole <NUM> and abuts against the first reflecting shell <NUM>, so as to achieve a sealing there between; and/or, the location where the second sealing annular rib <NUM> abuts against the first reflecting shell <NUM> is sealed by the sealing structure <NUM>. With this disposition, no more sealing structural element need to be provided between the first reflecting shell <NUM> and the second reflecting shell <NUM>, thereby reducing the number of structural elements. In addition, structural elements used for sealing are generally plastic parts, which are susceptible to be damaged after being subject to high temperature, resulting in poor sealing. With this disposition, the gap between the first reflecting shell <NUM> and the second reflecting shell <NUM> can be reliably sealed, and not affected by high temperature.

Of course, it is also possible that a first sealing ring rib extends from the first reflecting shell <NUM> towards the second reflecting shell <NUM>. The first reflecting shell <NUM> has the first sealing ring rib extending downwards from a boundary of the first passing hole <NUM> and abutting against the second reflecting shell <NUM>, so as to achieve sealing. The first sealing ring rib has the same function as the second sealing ring rib, and is not described further here.

As shown in <FIG>, the cover body <NUM> comprises an outer cover <NUM> that has a venting hole <NUM> corresponding to the venting assembly <NUM>, and an inner liner <NUM> located below the outer cover <NUM>. The inner liner <NUM> has an abutting cylinder <NUM> extending towards the outer cover <NUM> and tight fitted with the outer cover <NUM>, so as to prevent steam from entering the space between the outer cover <NUM> and the inner liner <NUM>. By providing the abutting cylinder <NUM>, the gap between the inner liner <NUM> and the outer cover <NUM> is sealed, so as to prevent air from entering the gap between the inner liner <NUM> and the outer cover <NUM>. The sealing structure <NUM> is located between the inner liner <NUM> and the baking assembly <NUM>, so as to seal the gap between the inner liner <NUM> and the baking assembly <NUM>, and to seal the gap between the baking assembly <NUM> and a safety valve at the same time.

As shown in <FIG>, the inner liner <NUM> has an annular supporting rib <NUM> extending towards the baking assembly <NUM>. The one among the first bending section and the second bending section that bends towards the venting assembly <NUM> is the abutting section <NUM>. The abutting section <NUM> cooperates with the annular supporting rib <NUM> in an abutting manner in the radial direction of the abutting cylinder <NUM>, so as to prevent incorrect positioning of the sealing structure <NUM>. By providing the annular supporting rib <NUM>, the sealing structure <NUM> is not susceptible to swaying after being mounted to position, improving the reliability of the sealing of the sealing structure <NUM>.

The fifth embodiment is similar to the fourth embodiment, and differs from the fourth embodiment in that the sealing structure <NUM> has a different structure.

As shown in <FIG>, the venting assembly <NUM> is provided with a mounting flange <NUM>. The sealing section <NUM> is provided with an overlapping flange <NUM> extending towards the venting assembly <NUM> and overlaps with the mounting flange <NUM>. The overlapping flange <NUM> is interference fitted with the venting assembly <NUM>. The fitting between the mounting flange <NUM> and the overlapping flange <NUM> allows a tighter connection between the sealing structure <NUM> and the venting assembly <NUM>, thus makes it difficult for the sealing structure <NUM> to be detached from the venting assembly <NUM>, and can also improve the sealing effect of the sealing structure <NUM>.

The sixth embodiment is similar to the fourth embodiment, and differs from the fourth embodiment in that the second reflecting shell <NUM> is not provided with the second sealing ring rib <NUM>. Instead, the gap between the first reflecting shell <NUM> and the second reflecting shell <NUM> is sealed by means of the sealing structure <NUM>.

As shown in <FIG>, the baking assembly <NUM> comprise a first reflecting shell <NUM> and a second reflecting shell <NUM> that are connected with each other. The second reflecting shell <NUM> is located below and spaced apart from the first reflecting shell <NUM> so as to form a heat barrier gap between the two. The first reflecting shell <NUM> has a first passing hole <NUM> for the venting assembly <NUM> to pass through. The second reflecting shell <NUM> has a second passing hole <NUM> for the venting assembly <NUM> to pass through. The sealing structure <NUM> has a cooperating section <NUM> extending downwards from the sealing section <NUM> and sealingly cooperate with a boundary of the first passing hole <NUM> and a boundary of the second passing hole <NUM>, so that the heat barrier gap is sealed. With this disposition, the gaps between multiple parts can be sealed by means of one sealing structure <NUM>, thereby reducing the number of sealing elements, and thus assembly cost and difficulty. The heating element <NUM> is located below the second reflecting shell <NUM>. The heat barrier gap can reduce the temperature transmitted to the cover body <NUM>, and improve the reliability of the functioning of the cover body <NUM>.

As shown in <FIG>, the cooperating section <NUM> has a clamping section <NUM> extending away from the venting assembly <NUM>. The first reflecting shell <NUM> extends into a slot formed between the clamping section <NUM> and the sealing section <NUM>. The lower surface of the clamping section <NUM> is pressed against the second reflecting shell <NUM>, so as to seal the gap between the first reflecting shell <NUM> and the second reflecting shell <NUM>. The clamping part <NUM> extends between the first reflecting shell <NUM> and the second reflecting shell <NUM>, preventing air from entering into the gap between the first reflecting shell <NUM> and the second reflecting shell <NUM>. It should be noted, the clamping section <NUM> only extends over a certain distance between the first reflecting shell <NUM> and the second reflecting shell <NUM>, and will not seal the entire heat barrier gap.

The seventh embodiment is similar to the fourth embodiment, and differs from the fourth embodiment in that an abutting rib <NUM> not only abuts against the abutting cylinder <NUM>, but also cooperates sealingly with the sealing structure <NUM>.

As shown in <FIG>, an abutting rib <NUM> is arranged at a boundary of the venting hole <NUM> of the outer cover <NUM> and extends towards the baking assembly <NUM>. The abutting rib <NUM> extends till the sealing section <NUM>, and abuts against the sealing section <NUM>, so as to seal the gap between the cover body <NUM> and the baking assembly <NUM>. In the application, the abutting rib <NUM> surrounds the venting hole <NUM> of the outer cover <NUM> and is cylinder-shaped. Thus, the gap between the cover body <NUM>, the baking assembly <NUM>, and the venting assembly <NUM> is made smaller, thus the sealing structure <NUM> only needs seal the gap between the abutting rib <NUM> and the baking assembly <NUM>.

This embodiment differs from the first embodiment in that, in this embodiment, the baking assembly <NUM> or the cover body <NUM> has a sealing cylinder <NUM>, so as to seal at least a part of the cover body <NUM> or the baking assembly <NUM> by contact.

As shown in <FIG>, the cooking device comprises a cover <NUM> and a body on which the cover <NUM> is arranged and capable of opening and closing the body. The cover <NUM> comprises a cover body <NUM>, a baking assembly <NUM>, and an inner cover <NUM>. The baking assembly <NUM> is provided inside the cover body <NUM>. The inner cover <NUM> is detachably arranged below the baking assembly <NUM> and has the venting assembly <NUM> extending towards the cover body <NUM>. The baking assembly <NUM> or the cover body <NUM> has a sealing cylinder <NUM> for the venting assembly <NUM> to pass through. The sealing cylinder <NUM> seals at least a part of the cover body <NUM> or the baking assembly <NUM> by contact.

The sealing cylinder <NUM> arranged on the baking assembly <NUM> or the cover body <NUM>, the gap between the baking assembly <NUM> and the cover body <NUM> can be sealed, without the need to provide other sealing elements between the baking assembly <NUM> and the cover body <NUM>. Thus, the number of sealing elements is reduced, therefore the assembly difficulty of the cooking device and the assembly cost of the cooking device are all reduced. In addition, with the sealing cylinder <NUM> arranged on the baking assembly <NUM> or the cover body <NUM>, once the baking assembly <NUM> and the cover body <NUM> are assembled together, the position of the sealing cylinder <NUM> is fixed, and thus can reliably seal the gap between the baking assembly <NUM> and the cover body <NUM>, thereby improving the reliability of the sealing of the cooking device.

In a specific embodiment not illustrated, the cover body <NUM> comprises an outer cover <NUM> and an inner liner <NUM>. The outer cover <NUM> is provided with the sealing cylinder <NUM> which extends towards the baking assembly <NUM>, and is sealed with the baking assembly <NUM> by contact. With the sealing cylinder <NUM> extending from the outer cover <NUM> towards the baking assembly <NUM>, the gap between the outer cover <NUM> and the inner liner <NUM> at the venting assembly <NUM> is sealed as well. The number of sealing elements is reduced, while improving the reliability of the sealing, so that multiple locations are sealed at the same time with one sealing cylinder <NUM>.

In a specific embodiment not illustrated, the baking assembly <NUM> comprises a heat shield <NUM> provided with the sealing cylinder <NUM> and a heating element <NUM>. The heat shield <NUM> envelops the heating element <NUM>, so as to prevent high temperature air produced by the heating element <NUM> from radiating towards the cover body <NUM>. Thus, the effect of high temperature on the cover body <NUM> is avoided, and the heat is reflected into the device body, so as to rapidly cook food inside the device body. With the heat shield <NUM> being provided with the sealing cylinder <NUM>, the gap between the baking assembly <NUM> and the cover body <NUM> and the gap between the outer cover <NUM> and the inner liner <NUM> can be both sealed.

As shown in <FIG>, the baking assembly <NUM> comprises a first reflecting shell <NUM> and a second reflecting shell <NUM> that are connected with each other. Compared to the second reflecting shell <NUM>, the first reflecting shell <NUM> is arranged further away from the inner cover <NUM>. The sealing cylinder <NUM> passes through the first reflecting shell <NUM> from the second reflecting shell <NUM>, and then extends into the cover body <NUM>. The heating element <NUM> is located below the second the second reflecting shell <NUM>. The second reflecting shell <NUM> reflects heat radiated by the heating element <NUM> towards the device body. A heat barrier gap is formed between the first reflecting shell <NUM> and the second reflecting shell <NUM>, so as to reduce the temperature transmitted to the first reflecting shell <NUM>. In addition, the first reflecting shell <NUM> can form a further heat barrier, reducing the temperature transmitted to the cover body <NUM>. The sealing cylinder <NUM> extends from the second reflecting shell <NUM> towards the cover body <NUM>, so that the sealing cylinder <NUM> can also further seal the gap between the first reflecting shell <NUM> and the second reflecting shell <NUM> near the venting assembly <NUM>, preventing hot air from entering between the first reflecting shell <NUM> and the second reflecting shell <NUM>.

Optionally, the sealing cylinder <NUM> is made of a heat insulating material.

As shown in <FIG>, the cover body <NUM> comprises an outer cover <NUM> and an inner liner <NUM>. The outer cover <NUM> or the inner liner <NUM> has a venting hole <NUM> that faces the venting assembly <NUM>. An abutting rib <NUM> is arranged at the boundary of the venting hole <NUM> and extending towards the baking assembly <NUM>. The abutting rib <NUM> cooperates with the sealing cylinder <NUM> in an abutting manner in the radial direction of the sealing cylinder <NUM>. With such disposition, swaying of the sealing cylinder <NUM> can be reduced, thus problems due to poor sealing are reduced.

As shown in <FIG>, the abutting rib <NUM> is pressed against an inner wall of the sealing cylinder <NUM>; and/or, a top face of the sealing cylinder <NUM> abuts against the outer cover <NUM> or the inner liner <NUM>. A first sealing of the cover body <NUM> is achieved by pressing the abutting rib <NUM> against the inner wall of the sealing cylinder <NUM>, preventing air from entering inside the cover body. A second sealing of the cover body <NUM> is achieved between the top face of the sealing cylinder <NUM> and the outer cover <NUM>, greatly improving the sealing between the baking assembly <NUM> and the cover body <NUM> and improving the reliability of the sealing.

As shown in <FIG>, the cover body <NUM> further comprises the inner liner <NUM>. The inner liner <NUM> has an abutting cylinder <NUM>. The sealing cylinder <NUM> extends into the abutting cylinder <NUM> and cooperates with an inner wall of the abutting cylinder <NUM> in an abutting manner in the radial direction of the sealing cylinder <NUM>. With the cooperation between the abutting cylinder <NUM> and the sealing cylinder <NUM>, swaying of the sealing cylinder <NUM> can be reduced, thus improving the reliability of the sealing of the sealing cylinder <NUM>.

As shown in <FIG>, the inner wall of the abutting cylinder <NUM> has a flanging section <NUM> extending towards the sealing cylinder <NUM>. The flanging section <NUM> is arranged to be pressed against an outer wall of the sealing cylinder <NUM>, so as to form a first sealing of the inner liner <NUM>. With the flanging section <NUM>, air entering between the outer cover <NUM> and the inner liner <NUM> can be reduced, thereby preventing humid air from affecting electrical parts on the inner liner <NUM> and increasing the reliability of the functioning and service life of electrical parts on the inner liner <NUM>.

As shown in <FIG>, the outer cover <NUM> has a sealing rib <NUM> extending towards the inner liner <NUM>. The abutting rib <NUM> and the sealing rib <NUM> form a slot. The sealing cylinder <NUM> is inserted into the slot, and is interference fitted with the slot, forming a first sealing between the outer cover <NUM> and the heat shield <NUM>. With this disposition, sealing is achieved between the sealing cylinder <NUM> and both the abutting rib <NUM> and the sealing rib <NUM>, so as to reduce air entering into the gap between the inner liner <NUM> and the outer cover <NUM>, improving the sealing of the cooking device.

As shown in <FIG>, the cover body <NUM> comprises the outer cover <NUM>. The inner liner <NUM> is provided below the outer cover <NUM>. The outer cover <NUM> has the venting hole <NUM> facing the venting assembly <NUM>. The outer cover <NUM> has the sealing rib <NUM> extending towards the inner liner <NUM>. The sealing rib <NUM> is located at the outer side of the sealing cylinder <NUM> and abuts against the inner liner <NUM> to at least achieve a second sealing of the inner liner <NUM>. This arrangement improves the sealing between the outer cover <NUM> and the inner liner <NUM> without the separately providing sealing elements, thereby reducing the assembly difficulty of the cooking device.

As shown in <FIG>, a top part of the abutting cylinder <NUM> radially bends outwards and then extends upwards vertically, so as to form a radial stepped face <NUM> at the inner wall of the abutting cylinder <NUM>. The flanging section <NUM> is located below the radial stepped face <NUM>. A free end of the sealing rib <NUM> abuts against the radial stepped face <NUM>, so as to achieve a second sealing of the inner liner <NUM>. The part of the inner wall of the abutting cylinder <NUM> located below the radial stepped face <NUM> abuts against the outer wall of the sealing cylinder <NUM>, so as to achieve a third sealing of the inner liner <NUM>. Triple sealing is achieved between the inner liner <NUM>, and the outer cover <NUM> and the sealing cylinder <NUM>, thereby greatly reducing air entering between the inner liner <NUM> and the outer cover <NUM>, and improving the sealing between the inner liner <NUM> and the outer cover <NUM>, so that electrical parts on the inner liner <NUM> function reliably.

As shown in <FIG>, the thickness of the sealing rib <NUM> gradually decreases towards the inner cover <NUM>. With the thickness of the sealing rib <NUM> gradually decreasing, it is easier for the sealing rib <NUM> to be inserted extending into the gap between the sealing cylinder <NUM> and the inner liner <NUM>, and at least a part of the sealing rib <NUM> is interference fitted with the inner liner <NUM>.

As shown in <FIG>, the cover <NUM> further comprises a sealing structure <NUM>. The sealing structure <NUM> is mounted on the venting assembly <NUM>. The venting assembly <NUM> has a mounting flange <NUM>. The sealing structure <NUM> has a mounting ring slot <NUM> in which the mounting flange <NUM> is inserted into. The sealing structure <NUM> abuts against the second reflecting shell <NUM> of the baking assembly <NUM>, so as to seal the gap between the second reflecting shell <NUM> and the venting assembly <NUM>. The sealing structure <NUM> is provided on the venting assembly <NUM> and can be detached together with the inner cover <NUM>. By providing the sealing structure <NUM>, the gap between a pressure limiting valve seat and the baking assembly <NUM> can be sealed, reducing air entering into the baking assembly <NUM>, thus limiting the effect of humid air on parts inside the baking assembly <NUM>. By providing the mounting flange <NUM>, a mounting position can be defined for the sealing structure <NUM>, so that the sealing structure <NUM> can be reliably sleeved to a pressure limiting valve seat. With the sealing structure <NUM> being detachable together with the inner cover <NUM>, high temperature baking of the sealing structure <NUM> by the baking assembly <NUM> can be reduced, thus prolonging the service life of the sealing structure <NUM>.

This embodiment differs from the first embodiment in that, in this embodiment, a sealing between the outer cover and the inner liner is achieved.

As shown in <FIG>, the cooking device comprises a cover <NUM> and a body on which the cover <NUM> is arranged and capable of opening and closing the body. The cover <NUM> comprises a cover body <NUM> and an inner cover <NUM>. The cover body <NUM> comprises an outer cover <NUM> and an inner liner <NUM>. The outer cover <NUM> has a venting hole <NUM>. The inner liner <NUM> has an abutting cylinder <NUM> extending towards the outer cover <NUM> and facing the venting hole <NUM>. The outer cover <NUM> has an annular sealing rib extending towards the inner liner <NUM> and abuts against the abutting cylinder <NUM> in its radial direction, so that the junction between the inner liner <NUM> and the outer cover <NUM> is sealed by means of the annular sealing rib.

With the inner liner <NUM> being provided with the abutting cylinder <NUM>, the gap between the inner liner <NUM> and the outer cover <NUM> can be sealed so as to prevent air from entering the gap between the inner liner <NUM> and the outer cover <NUM>, thereby reducing the effect of air on structural elements between the inner liner <NUM> and the outer cover <NUM> and improving the reliability of their functioning. In addition, by providing the abutting cylinder <NUM>, sealing between the outer cover <NUM> and the inner liner <NUM> can be achieved without separately mounting structural sealing elements anymore, reducing the number of sealing elements, and the assembly cost and assembly difficulty of the cooking device. By providing the annular sealing rib, the inner liner <NUM> and the outer cover <NUM> cooperate with each other in an abutting manner, so as to reduce swaying between them and improve the sealing between them. It should be noted that, structural sealing elements are mostly plastic parts, which are susceptible to breaking and unreliable functioning when located in a humid environment for a long time. Such problems are solved with the abutting cylinder <NUM>.

In the prior art, due to the particularity of a pressure-baking cooker, both released steam during pressure cooking and hot air during baking are evacuated through the same passage, resulting in a short life of silica gel. In the invention, by means of the self-sealing between the outer cover <NUM> and the inner liner <NUM>, the use of sealing silica gel can be reduced, thereby improving the sealing reliability and reducing safety risks.

As shown in <FIG>, a slot <NUM> is arranged on top of the abutting cylinder <NUM>. The outer cover <NUM> has a sealing element <NUM> that extends into the slot <NUM> and is interference fitted with it. The annular sealing rib is used as the sealing element <NUM>. The annular sealing rib is inserted into the slot <NUM> and is interference fitted with the slot <NUM>. With the annular sealing rib being inserted into the slot <NUM>, the tightness of the connection between the annular sealing rib and the abutting cylinder <NUM> is improved. The interference fit improves the sealing between the outer cover <NUM> and the inner liner <NUM>, and greatly reduces humid air entering into the space between the inner liner <NUM> and the outer cover <NUM>.

As shown in <FIG>, the baking assembly <NUM> comprises a heat shield <NUM> and a heating element <NUM>. The sealing structure <NUM> is clamped between the cover body <NUM> and the heat shield <NUM>. This disposition can reduce direct radiation of the heating element <NUM> on the sealing structure <NUM>, reduce the effect of high temperature on the sealing structure <NUM>, and lengthen the service life of the sealing structure <NUM>.

In this embodiment, the heat shield <NUM> comprises a first reflecting shell <NUM> and a second reflecting shell <NUM> that are connected with each other and spaced apart.

As shown in <FIG>, the inner cover <NUM> is provided with a venting assembly <NUM> extending towards the cover body <NUM> and facing the venting hole <NUM>. The venting assembly <NUM> extends into the abutting cylinder <NUM>. The venting assembly <NUM> comprises at least one of a pressure limiting valve seat and an opening disabling valve seat. With this disposition, the abutting cylinder <NUM> limits the swaying of the venting assembly <NUM>, seals the gap between the inner liner <NUM> and the outer cover <NUM>, and improves the reliability of the sealing of the baking assembly <NUM>.

As shown in <FIG>, the sealing structure <NUM> has a body section <NUM> clamped between the cover body <NUM> and the baking assembly <NUM>, and a sealing section <NUM> extending from the inner periphery of the body section <NUM>. The venting assembly <NUM> is tight fitted with the sealing section <NUM>. The body section <NUM> is clamped between the cover body <NUM> and the baking assembly <NUM>, so as to seal the gap between the cover body <NUM> and the baking assembly <NUM>, while the sealing section <NUM> is tight fitted with the venting assembly <NUM>, so as to seal the gap between the venting assembly <NUM> and the cover body <NUM> and/or the baking assembly <NUM>. In addition, the body section <NUM> can further provide support to a certain extent to the cover body <NUM>, so as to reduce the deformation of the cover body <NUM>, and allows reliable functioning of the cover body <NUM>.

The sealing section <NUM> is provided with an oblique guiding face <NUM> extending obliquely upwards from a bottom face of the sealing section <NUM> towards the venting assembly <NUM>, so as to facilitate the passing through of the venting assembly <NUM>. The oblique guiding face <NUM> extends obliquely upwards towards the venting assembly <NUM> to facilitate the venting assembly <NUM> to pass through the sealing structure <NUM> while extending upwards to be interference fitted with a pressure limiting valve seat, thereby improving the sealing effect of the sealing structure <NUM>.

As shown in <FIG>, the sealing structure <NUM> has the body section <NUM>, as well as a first bending section located at the top of the body section <NUM> and a second bending section located at the bottom of the body section <NUM>, and the bending direction of the first bending section is opposite to that of the second bending section. The upper surface of the first bending section abuts against the lower surface of the cover body <NUM>. The lower surface of the second bending section abuts against the upper surface of the baking assembly <NUM>. The upper surface of the first bending section abuts against the lower surface of the cover body <NUM>, so that the sealing structure <NUM> and the cover body <NUM> are sealed with in a gapless manner, thereby preventing air from entering the gap between the cover body <NUM> and the baking assembly <NUM> through any gap between the sealing structure <NUM> and the cover body <NUM>. The lower surface of the second bending section abuts against the upper surface of the baking assembly <NUM>, so that the sealing structure <NUM> and the baking assembly <NUM> are sealed in a gapless manner, achieving sealing, thereby preventing air from entering the gap between the cover body <NUM> and the baking assembly <NUM> through any gap between the sealing structure <NUM> and the baking assembly <NUM>. Thus, the sealing of the cover <NUM> is improved, reducing the effect of air on the space inside the baking assembly <NUM> and the cover body <NUM>.

As shown in <FIG>, the one among the first bending section and the second bending section that bends towards the venting assembly <NUM> is the sealing section <NUM>, which is interference fitted with the venting assembly <NUM>, so as to prevent steam from entering the space between the cover body <NUM> and the baking assembly <NUM>. The sealing section <NUM> can seal the gap between the cover body <NUM> and the venting assembly <NUM>, and prevent air from flowing back into the space between the cover body <NUM> and the baking assembly <NUM>. The sealing section <NUM> can also seal the gap between the baking assembly <NUM> and a safety valve, preventing air from flowing back into the baking assembly <NUM>, thereby reducing the effect of water content in air on parts inside the baking assembly <NUM>, and lengthening the service life of parts inside the baking assembly <NUM>.

As shown in <FIG>, the inner liner <NUM> has an annular supporting rib <NUM> extending towards the baking assembly <NUM>. The one among the first bending section and the second bending section that bends away from the venting assembly <NUM> is the abutting section <NUM>, which abuts against the annular supporting rib <NUM> in the radial direction of the abutting cylinder <NUM>, so as to prevent incorrect positioning of the sealing structure <NUM>. By providing the annular supporting rib <NUM>, the sealing structure <NUM> is not susceptible to swaying after being mounted in place, thereby improving the reliability of the sealing of the sealing structure <NUM>.

In a specific embodiment not shown in the figures, the bottom part of the annular sealing rib has a slot <NUM>. The inner liner <NUM> has a sealing element <NUM> that extends into the slot <NUM> and is interference fitted with it. At least a part of the abutting cylinder <NUM> is used as the sealing element <NUM>. The top of the abutting cylinder <NUM> extends into the slot <NUM>. The technical effect of having the annular sealing rib inserted into the slot <NUM> is similar to that of providing a slot <NUM> on the top of the abutting cylinder <NUM>, and is not described again here.

As shown in <FIG>, the thickness of the annular sealing rib decreases towards the inner cover <NUM> and has a main section <NUM> and a thinned section <NUM>. The main section <NUM> is interference fitted with the slot <NUM>. The thinned section <NUM> abuts against a bottom face of the slot <NUM> and is interference fitted with it, so that the annular sealing rib is sealed with the abutting cylinder <NUM>. This disposition can achieve multiple sealings between the slot <NUM> and the sealing ring rib, thereby greatly improving the sealing between the inner liner <NUM> and the outer cover <NUM>. By providing the thinned section <NUM>, the inserting of the annular sealing rib into the slot <NUM> is facilitated. The main section <NUM> is interference fitted with the surface of the slot <NUM> close to the venting assembly <NUM>, forming a first sealing. The thinned section <NUM> is interference fitted with the bottom face of the slot <NUM>, forming a second sealing. The main body <NUM> is interference fitted with the surface of the slot <NUM> away from the venting assembly <NUM>, forming a third sealing.

Specifically, the thickness A of the main body <NUM> is larger than the width B of the slot <NUM>, and the difference between the thickness A and the width B is larger than <NUM> and smaller or equal to <NUM>. While ensuring a good sealing effect between the main section <NUM> and the slot <NUM>, this disposition also facilitates the insertion of the main section <NUM> into the slot <NUM>. Thus, the annular sealing rib can be interference fitted with the bottom face of the slot <NUM>.

Specifically, the extent of interference fit between the thinned section <NUM> and the bottom face of the slot <NUM> is larger than or equal to <NUM> and smaller than or equal to <NUM>. This disposition, while ensuring the sealing between the thinned section <NUM> and the slot <NUM>, will not exert a too big force on the slot <NUM>, thereby preventing the thinned section <NUM> from breaking due to excessive force exerted, and improving the reliability of the fitting between the thinned section <NUM> and the slot <NUM>.

As shown in <FIG>, the top of the abutting cylinder <NUM> comprises a supporting section <NUM> extending transversally towards the center of the abutting cylinder <NUM> and a plurality of annular protruding ribs <NUM> that are concentric but have different radius. The annular protruding ribs <NUM> extend towards the outer cover <NUM> from the upper surface of the supporting section <NUM>. The slot <NUM> is formed by the gap between two adjacent annular protruding ribs <NUM>. This disposition can improve the sealing between the inner liner <NUM> and the outer cover <NUM>, reducing air entering between the inner liner <NUM> and the outer cover <NUM>. By providing the supporting section <NUM> and the plurality of annular protruding ribs <NUM> that are concentric with different radius, the thickness of the abutting cylinder <NUM> can be reduced, thus reducing the weight of the inner liner <NUM>, so that the cooking device is thinner and lighter.

As shown in <FIG>, the annular sealing ribs is offset from the boundary of the venting hole <NUM>, so as to reserve an abutting face <NUM> for the abutting cylinder <NUM>. At least a part of the top of the abutting cylinder <NUM> is in contact with the abutting face <NUM>. This disposition can further improve the sealing between the annular sealing rib and the abutting cylinder <NUM>, so as to further reduce air entering between the inner liner <NUM> and the outer cover <NUM>, and greatly improve the reliability of the environment of the structural elements located between the inner liner <NUM> and the outer cover <NUM>.

As shown in <FIG>, the cover <NUM> further comprises the baking assembly <NUM> and the sealing structure <NUM>. The venting assembly <NUM> passes through the baking assembly <NUM> and extends into the abutting cylinder <NUM>. The sealing structure <NUM> is sleeved to the venting assembly <NUM> and located between the baking assembly <NUM> and the inner liner <NUM>, so as to seal the gap between the baking assembly <NUM> and the venting assembly <NUM>. In this embodiment, the sealing structure <NUM> is arranged between the baking assembly <NUM> and the inner liner <NUM> and pressed against them so as to seal the gap between the baking assembly <NUM> and the inner liner <NUM> at the same time. Therefore, air is prevented from flowing back between the inner liner <NUM> and the baking assembly <NUM>, so as to reduce the effect of humid air on electrical parts on the baking assembly <NUM>, and improve the reliability of the functioning of the baking assembly <NUM>. With the sealing structure <NUM> sleeved to the venting assembly <NUM> and abutting against the baking assembly <NUM>, air is prevented from entering inside the baking assembly <NUM> via the gap between the venting assembly <NUM> and the baking assembly <NUM>. The sealing structure <NUM> allows to seal the gaps between multiple parts at multiple locations at the same time, without the need of other sealing structure separately provided at each gap, thereby greatly improving the efficiency of the sealing structure <NUM> and saving labor costs.

As shown in <FIG>, the baking assembly <NUM> comprises the first reflecting shell <NUM> and the second reflecting shell <NUM> that are connected with each other. The second reflecting shell <NUM> is located below the first reflecting shell <NUM>. The first reflecting shell <NUM> has a first passing hole <NUM> for the venting assembly <NUM> to pass through. The first reflecting shell <NUM> has a first sealing ring rib <NUM> which extends downwards from the circumference of the first passing hole <NUM> and abuts against the second reflecting shell <NUM>, so as to achieve a sealing there between. By providing the first reflecting shell <NUM> with the first sealing ring rib <NUM>, the gap between the first reflecting shell <NUM> and the second reflecting shell <NUM> can be sealed, thereby preventing air from entering between the first reflecting shell <NUM> and the second reflecting shell <NUM>. It should be noted that, the first reflecting shell <NUM> and the second reflecting shell <NUM> are spaced apart from each other, so that a heat barrier is formed between the two, and the first sealing ring rib <NUM> only seals the gap between the first reflecting shell <NUM> and the second reflecting shell <NUM> at the first passing hole <NUM>.

In another specific embodiment not shown in the figures, the second reflecting shell <NUM> has a second passing hole <NUM> for the venting assembly <NUM> to pass through. The second reflecting shell <NUM> has a second sealing ring rib <NUM>. The second sealing ring rib <NUM> extends upwards from the circumference the second passing hole <NUM> and abuts against the first reflecting shell <NUM>, so as to achieve a sealing there between. The effect of the second sealing ring rib <NUM> is similar to that of the first sealing ring rib <NUM>, and is not described again here.

As shown in <FIG>, the baking assembly <NUM> comprises the first reflecting shell <NUM> and the second reflecting shell <NUM> that are connected with each other. The first reflecting shell <NUM> has the first passing hole <NUM> for the venting assembly <NUM> to pass through. The first reflecting shell <NUM> has the first sealing ring rib <NUM>. The first sealing ring rib <NUM> extends downwards from the circumference of the first passing hole <NUM> and abuts against the second reflecting shell <NUM>, so as to achieve a sealing there between. The second reflecting shell <NUM> has the second passing hole <NUM> for the venting assembly <NUM> to pass through. The second reflecting shell <NUM> has the second annular sealing rib which downwards from the circumference of the second passing hole <NUM>. Since the second annular sealing rib downwardly provided, the gap between the second reflecting shell <NUM> and a baking face of the baking assembly <NUM> can also be sealed, preventing high temperature air inside the baking assembly <NUM> from escaping, so as to reduce leaking and improve the efficiency and reliability of the baking assembly <NUM>.

As shown in <FIG>, the inner liner <NUM> has the annular supporting rib <NUM> extending towards the baking assembly <NUM>. The one among the first bending section and the second bending section that bends towards the venting assembly <NUM> is the abutting section <NUM>, which abuts against the annular supporting rib <NUM> in the radial direction of the abutting cylinder <NUM>, so as to prevent incorrect positioning of the sealing structure <NUM>. By providing the annular supporting rib <NUM>, the sealing structure <NUM> is not susceptible to swaying after being mounted in place, thereby improving the reliability of the sealing structure <NUM>.

This embodiment differs from the first embodiment in that, in this embodiment, a heat barrier gap is formed between the sealing structure <NUM> and a bottom part of the venting assembly <NUM>, and the sealing structure <NUM> has separate parts.

As shown in <FIG>, a pressure limiting valve seat <NUM> is provided on the upper surface of the inner cover <NUM>. The inner cover <NUM> further comprises a pressure limiting sealing ring <NUM>. A first heat barrier gap is formed between the lower boundary of the pressure limiting sealing ring <NUM> and the bottom of the pressure limiting valve seat <NUM>.

Since the pressuring limiting sealing ring <NUM> is provided on the pressure limiting valve seat <NUM> and is detachable together with the inner cover <NUM>, other structural elements will not affect the pressure limiting sealing ring <NUM>, which is thus prevented from melting and deforming due to high temperature baking. Thus, the service life of the pressure limiting sealing ring <NUM> is lengthened. A first heat barrier gap is formed between the lower boundary of the pressure limiting sealing ring <NUM> and the bottom of the pressure limiting valve <NUM>, so as to reduce the transmission of heat below the inner cover <NUM> to the pressure limiting sealing ring <NUM>, thus lengthening the service life of the pressure limiting sealing ring <NUM>.

Specifically, the first heat barrier gap is larger than <NUM>. This disposition can reduce the transmission of heat in the lower part of the inner cover <NUM> to the pressure limiting sealing ring <NUM>, and lengthen the service life of the pressure limiting sealing ring <NUM>.

As shown in <FIG>, the pressure limiting sealing ring <NUM> is provided in a middle portion of the pressure limiting valve seat <NUM>, or the distance between the pressure limiting sealing ring <NUM> and the top of the pressure limiting valve seat <NUM> is smaller than the distance between the pressure limiting sealing ring <NUM> and the bottom of the pressure limiting valve seat <NUM>. Therefore, a first heat barrier gap is formed between the pressure limiting sealing ring <NUM> and the bottom of the pressure limiting valve seat <NUM>, and the sealing of the hole to be sealed by the pressure limiting sealing ring <NUM> is facilitated.

As shown in <FIG>, the pressure limiting sealing ring <NUM> comprises a ring body <NUM> and a position limiting rib <NUM> protruding from an outer periphery of the ring body <NUM> towards the cover body <NUM>. An inner ring face and an outer ring face of the position limiting rib <NUM> extend upwards from the ring body <NUM> and are inclined towards each other. The inner circumference of the ring body <NUM> is closer to the center of the pressure limiting sealing ring <NUM> compared to the inner circumference of the position limiting rib <NUM>. At least a part of the ring body <NUM> is inserted in the pressure limiting valve seat <NUM>, and abuts against the pressure limiting valve seat <NUM>, so as to prevent the pressure limiting sealing ring <NUM> from dropping off, improving the reliability of the sealing of the pressure limiting sealing ring <NUM>. By providing the position limiting rib <NUM>, the mounting of the pressure sealing ring <NUM> is facilitated and made more convenient. In addition, the position limiting rib <NUM> will abut against other structural elements, reducing the collision of other structural elements on the pressure limiting valve seat <NUM>, and improving the safety of the pressure limiting valve seat <NUM>. With the inner ring face of the position limiting rib <NUM> and the outer ring face of the position limiting rib <NUM> inclined upwards and towards each other, the mounting and dismounting of the pressure limiting sealing ring <NUM> is facilitated. On the side facing the inner cover <NUM>, the surface of the pressure limiting sealing ring <NUM> is a flat face, and is pressed against at least a part of the pressure limiting valve seat, thereby improving the reliability of the sealing between the pressure limiting sealing ring <NUM> and the pressure limiting valve seat <NUM>.

As shown in <FIG>, the pressure limiting valve seat <NUM> is provided with a mounting slot inside which the pressure limiting sealing ring <NUM> is clamped. This disposition can improve the tightness of the connection between the pressure limiting sealing ring <NUM> and the pressure limiting valve seat <NUM>, so that the pressure limiting sealing ring <NUM> can be detached together with the inner cover <NUM>.

As shown in <FIG>, <FIG>, an opening disabling valve seat <NUM> is arranged on the upper surface of the inner cover <NUM>. The inner cover <NUM> further comprises an opening disabling sealing ring <NUM>. The opening disabling sealing ring <NUM> is provided on the opening disabling valve seat <NUM>, and a second heat barrier gap is formed between the lower boundary of the opening disabling sealing ring <NUM> and the bottom end of the opening disabling valve seat <NUM>. The opening disabling sealing ring <NUM> is provided on the opening disabling valve seat <NUM> and can be detached together with the inner cover <NUM>. This arrangement can prevent other structural elements from affecting the opening disabling sealing ring <NUM>, thereby preventing the opening disabling sealing ring <NUM> from melting and deforming due to high temperature baking, and lengthening the service life of the opening disabling sealing ring <NUM>. The second heat barrier gap is formed between the lower boundary of the opening disabling sealing ring <NUM> and the bottom of the opening disabling valve seat <NUM>, so as to reduce the transmission of heat below the inner cover <NUM> to the opening disabling sealing ring <NUM>, thus lengthening the service life of the opening disabling sealing ring <NUM>.

Specifically, the second heat barrier gap is larger than <NUM>. This disposition can reduce the transmission of heat of the lower part of the inner cover <NUM> to the opening disabling sealing ring <NUM>, and lengthen the service life of the opening disabling sealing ring <NUM>.

As shown in <FIG>, the distance between the opening disabling sealing ring <NUM> and the top of the opening disabling valve seat <NUM> is smaller than the distance between the opening disabling sealing ring <NUM> and the bottom of the opening disabling valve seat <NUM>; or the opening disabling sealing ring <NUM> may be provided at a top portion of the opening disabling valve seat <NUM>. In other words, the opening disabling sealing ring <NUM> is located in the middle upper part of the opening disabling valve seat <NUM> or at the top of the opening disabling valve seat <NUM>. Therefore, the second heat barrier gap is formed between the opening disabling sealing ring <NUM> and the bottom of the opening disabling valve seat <NUM>, and the sealing of the hole to be sealed by the opening disabling sealing ring <NUM> is facilitated.

As shown in <FIG>, the opening disabling sealing ring <NUM> has a narrowed section <NUM>. By providing the narrowed section <NUM>, the mounting of the opening disabling sealing ring <NUM> is made more convenient. On the side facing the inner cover <NUM>, the surface of the opening disabling sealing ring <NUM> is a flat face, and is pressed against at least a part of the opening disabling valve seat <NUM>, thereby reducing the risk of the opening disabling sealing ring <NUM> being detached from the opening disabling valve seat <NUM>.

In this embodiment, the opening disabling sealing ring <NUM> and the pressure limiting sealing ring <NUM> are separate parts. Thus, the interaction between the two is relatively limited, but the assembly is more complicated and it is not easy to position both in place at the same time.

Of course, the opening disabling sealing ring <NUM> and the pressure limiting sealing ring <NUM> can be integrally formed (not shown in the figures), so as to reduce the number of steps for mounting the opening disabling sealing ring <NUM> and the pressure limiting sealing ring <NUM>.

As shown in <FIG>, the cooking device comprises a cover <NUM> and a body on which the cover <NUM> is arranged and capable of opening and closing the body. The cover <NUM> comprises a cover body <NUM>, a baking assembly <NUM>, and the above-described inner cover <NUM>. The cover body <NUM> is provided with a fan inside. The baking assembly <NUM> is arranged inside the cover body <NUM>. The inner cover <NUM> is detachably arranged below the baking assembly <NUM>.

By providing both the baking assembly <NUM> and the inner cover <NUM> in the cooking device, the cooking device can perform cooking by both baking and high-pressure cooking. As the inner cover <NUM> is detachably arranged below the baking assembly <NUM>, when the cooking device is needed to perform cooking by baking, the inner cover <NUM> is detached, so that the baking assembly <NUM> performs baking of food materials inside the device body. When the cooking device is needed to perform high-pressure cooking, the inner cover <NUM> is mounted below the baking assembly <NUM>, so that the inner cover <NUM> can seal the high pressure air inside the device body and pressure cooking of food materials can be performed inside the device body. The pressure limiting valve seat <NUM> provides a mounting position for the pressure limiting valve <NUM>. The pressure limiting sealing ring <NUM> is provided on the pressure limiting valve seat <NUM> and can be detached together with the inner cover <NUM>, preventing the pressure limiting sealing ring <NUM> from being heated by the baking assembly <NUM> and further melted and deformed due to high temperature baking, and thus lengthening the service life of the pressure limiting sealing ring <NUM>. A first heat barrier gap is formed between the lower boundary of the pressure sealing ring <NUM> and the bottom of the pressure limiting valve seat <NUM>, so as to reduce the transmission of heat inside the device body to the pressure limiting sealing ring <NUM>, thus lengthening the service life of the pressure limiting sealing ring <NUM>. The fan inside the cover body <NUM> can blow away heat transmitted to the cover body <NUM>, so as to reduce the temperature at the cover body <NUM>, improving the reliability of parts inside the cover body <NUM>.

It should be noted that, in the application, the cover body <NUM> is provided with a first plug terminal <NUM>, and the device body is provided with a second plug terminal that cooperates with the first plug terminal <NUM>. The first plug terminal <NUM> and the second plug terminal are plugged together to power the cover <NUM>. This coupling power supply approach is more reliable in supplying power.

As shown in <FIG>, the pressure limiting sealing ring <NUM> of the inner cover <NUM> is tight fitted with the mounting hole <NUM> of the pressure limiting valve on the cover body <NUM>. The opening disabling sealing ring <NUM> of the inner cover <NUM> is tight fitted with the mounting hole <NUM> of the opening disabling valve on the cover body <NUM>. The pressure limiting sealing ring <NUM> passes through the baking assembly <NUM>, so as to seal the mounting hole <NUM> of the pressure limiting valve on the cover body <NUM>. The opening disabling sealing ring <NUM> passes through the baking assembly <NUM>, so as to seal the mounting hole <NUM> of the opening disabling valve on the cover body <NUM>.

As shown in <FIG> and <FIG>, the baking assembly <NUM> comprises, sequentially from top to bottom, the heat shield <NUM>, the heating element <NUM>, and a plurality of fixing clamps <NUM> by means of which the heating element <NUM> is mounted to the heat shield <NUM> and through which the pressure limiting valve seat <NUM> of the inner cover <NUM> passes. The heating element <NUM> allows the pressure limiting valve seat <NUM> to bypass it. The heat shield <NUM> has a passing hole <NUM> for the pressure limiting valve seat <NUM> to pass through. The baking assembly <NUM> performs baking of food materials inside the device body by the heat generated by the heating element <NUM>. The heat shield <NUM> blocks the heat produced by the baking assembly <NUM>, so as to prevent heat from being transmitted into the cover body <NUM>. With the passing hole <NUM> for pressure limiting valve seat, the pressure limiting valve seat <NUM> can pass through the heat shield <NUM> and extend into the cover body <NUM>. The plurality of fixing clamps <NUM> fix the heating element <NUM> at a plurality of positions, improving the reliability of the connection between the heating element <NUM> and the heat shield <NUM>.

In a specific embodiment not illustrated in the figures, a protective net is arranged in the baking assembly <NUM> by means of which the heating element <NUM> is connected to the heat shield <NUM>, instead of fixing clamps. The area of contact between the protective net and the heating element <NUM> is large, so that the connection between the heating element <NUM> and the heat shield <NUM> is tighter.

In the specific embodiment shown in <FIG> and <FIG>, the cover <NUM> further comprises a handle <NUM> and a steam cover <NUM> that are connected with the outer cover <NUM> on the cover body <NUM>. At least a part of the handle <NUM> is connected with a rotary bar <NUM> on the inner liner <NUM>, so as to drive a rotary cover <NUM> to rotate, thereby opening or closing the cover <NUM> over the device body. The steam cover <NUM> is spaced apart from the handle <NUM> and covers the pressure limiting valve <NUM>, so as to prevent the pressure limiting valve <NUM> from being detached from the pressure limiting valve seat <NUM>.

In the application, the cover body <NUM> further comprises a heat insulating cotton <NUM> located between the inner liner <NUM> and the heat shield <NUM>, so as to reduce the transmission of heat from the baking assembly <NUM> to the inner liner <NUM>, thus improving the reliability of the cover body <NUM>.

In this embodiment, the inner cover <NUM> can seal the high pressure air inside the device body, so as to perform pressure cooking of food materials inside the device body.

Optionally, the above-described cooking device is an electrical pressure cooker. Of course, the cooking device can also be other electrical appliances used for cooking food materials, such as an electrical rice cooker.

It should be noted that, the terms used herein are merely for describing specific modes of realization, and not intended to limit exemplary embodiments according to the application. As used herein, unless otherwise specifically indicated elsewhere herein, the singular form is intended to also include the plural form. In addition, it should be noted that, when a term such as "comprise" and/or "include" is used in this specification, it indicates there exists a feature, step, functioning, part, assembly, and/or their combination.

Claim 1:
A cooking device, wherein it comprises a cover (<NUM>) and a body on which the cover (<NUM>) is arranged to open and close the body, the body comprising a heating structure, the cover (<NUM>) comprising:
- a cover body (<NUM>) provided with a venting passage;
- a baking assembly (<NUM>) arranged inside the cover body (<NUM>) and comprising a heat shield (<NUM>) and a heating element (<NUM>) arranged below the heat shield (<NUM>),
characterized in that
- an inner cover (<NUM>) is detachably provided below the baking assembly (<NUM>) and provided with a venting assembly (<NUM>) extending towards the cover body (<NUM>), a sealing structure (<NUM>) being provided between the venting assembly (<NUM>) and the venting passage.