Heater

A heater includes a body, a burner assembly, a gas tank, and a reflecting plate. The burner assembly is installed on the body. The gas tank is arranged in the body and directly below the burner assembly, and has an interface end connected to a fuel inlet end of the burner assembly via a valve. The reflecting plate is installed in the body and located between the burner assembly and the gas tank. The reflecting plate prevents heat coming from a bottom portion of a burner of the burner assembly from being radiated directly to the interface end of the gas tank and allows heat coming from around the burner to be radiated to a periphery of the interface end of the gas tank and heat the gas tank.

TECHNICAL FIELD

One or more embodiments of the present invention relate to the technical field of heating equipment, in particular to a heater.

BACKGROUND

According to fuel used, heaters may be divided into electricity-driven heaters and gas-driven heaters. For example, outdoor heaters are usually gas-driven heaters. A gas-driven heater generally includes a replaceable gas tank, a valve, a burner assembly, and a furnace body as an outer housing. For the purpose of maximizing firepower and minimizing volume, the gas tank, the valve, and the burner assembly are generally configured to be in the same longitudinal direction. When in use, the heat generated at the bottom of a burner of the burner assembly is easily radiated downwards to directly bake the valve and an interface end of the gas tank. Such a structure has safety hazards. At the same time, in order to increase a storage of the gas tank, gas stored inside is generally in a liquid or solid form under high pressure and low temperature, which easily comes short of full use due to relatively too low external pressure or relatively too low temperature during use. Particularly in plateau areas, there is a situation where nearly a quarter of the gas remains unused and cannot flow out, resulting in low fuel utilization and poor experience.

SUMMARY

In one or more embodiments of the present invention, provided is a heater designed to be capable of radiating heat generated by a burner to a periphery of an interface end of a gas tank while blocking a direct radiation to the interface end, thereby effectively improving the utilization rate of the fuel.

In one or more embodiments, the heater may include a body, a burner, a gas tank, and a reflecting plate. The burner assembly is installed on the body. The gas tank is arranged in the body and directly below the burner assembly, and has an interface end connected to a fuel inlet end of the burner assembly via a valve. The reflecting plate is installed in the body and located between the burner assembly and the gas tank. The reflecting plate prevents heat coming from a bottom portion of a burner of the burner assembly from being radiated directly to the interface end of the gas tank and allows heat coming from around the burner to be radiated to a periphery of the interface end of the gas tank and heat the gas tank.

In one or more embodiments, the reflecting plate may include a blocking area and a radiation area. The blocking area is a projection plane of the burner on the reflecting plate in a longitudinal direction and is configured to prevent the heat coming from the bottom of the burner from being radiated directly to the interface end of the gas tank. The radiation area does not overlap with the blocking area and is configured to allow the heat coming from around the burner to be radiated to the periphery of the interface end of the gas tank.

In one or more embodiments, the reflecting plate may be provided with at least one through hole, as the radiation area, that penetrates longitudinally and does not overlap with the blocking area. In some embodiments, the reflecting plate is further provided with a mounting slot.

In one or more embodiments, the body may include a furnace body and a mesh cover assembly. The furnace body is provided, at a lower opening, with a cavity for containing the mesh cover assembly.

In one or more embodiments, a lower end surface of the body may be provided with a plurality of sets of supporting legs and has an outer peripheral wall that is bent inward to form an annular support surface. An upper end surface of each of the supporting legs has an L-shaped connecting surface, including a longitudinal surface and a horizontal surface. The longitudinal surface abuts against the annular support surface. The horizontal surface abuts against the outer peripheral wall of the body and is fastened by a screw. The supporting legs limit a position of the mesh cover assembly contained in the cavity.

In one or more embodiments, the furnace body may further include a limiting assembly that limits the position of the mesh cover assembly. The limiting assembly may be a plurality of sets of L-shaped rotating rods pivotally connected to the upper end surface of the furnace body. Alternatively, the limiting assembly may include a plurality of sets of slotted holes arranged in the upper end surface of the furnace body, and the mesh cover assembly may have a bottom ring that is fixedly provided with clamping joints that match the slotted holes. When the slotted holes have a gourd shape or when the slotted holes are circular, the clamping joints have an outer circumference with external threads. The clamping joints extend into the slotted holes and are screwed with bolts. Alternatively, the limiting assembly may be a annular groove structure formed by an annular inner recess on the upper end surface of the furnace body, and the bottom ring of the mesh cover assembly, without head-to-tail connection, is embedded into the annular groove structure and clamped by a tension of the mesh cover assembly itself.

In one or more embodiments, the bottom ring of the mesh cover assembly, without head-to-tail connection, may be fixedly provided with a clamping joint. The limiting assembly includes an annual groove structure and a hole that matches the clamping joint. The bottom ring is embedded in the annular groove and clamped by the tension of the mesh cover assembly itself, and the clamping joint is assembled with the hole to facilitate the installation and positioning of the mesh cover assembly.

In one or more embodiments, the upper end surface of the furnace body may comprise an installation plane and a concave surface. The burner assembly has a lower end that is fixedly mounted on the installation plane and connected to the gas tank arranged in the cavity via the valve, and the concave surface is provided with at least one heat-passing hole that communicates with the cavity.

In one or more embodiments, the installation plane of the furnace body is fixedly provided with a support frame, which has an upper end that passes through the mounting slot of the reflecting plate and is clamped with the reflecting plate.

In one or more embodiments, the support frame is plate-shaped as a whole, and extended inward and outward to form an inner protrusion and an outer protrusion, respectively, and, in a longitudinal direction, the inner protrusion and the outer protrusion are arranged in a staggered manner up and down to clamp the reflecting plate and restrict a rotation of the support frame.

In summary, embodiments of the present invention provide the following advantage: the heater includes a body, a burner assembly, a gas tank and a reflecting plate, the reflecting plate allowing the heat generated by the burner to be radiated to the periphery of the interface end of the gas tank while blocking the direct radiation to the interface end, making it possible to fully use the fuel in the gas tank, avoiding the problem of wasting due to condensation inside the gas tank caused by the low temperature in the gas tank, thereby effectively improving the fuel utilization rate, especially for areas with low air pressure such as plateaus.

DETAILED DESCRIPTION

Embodiments of the present invention will be described hereafter through specific and detailed examples. Those skilled in the art will easily appreciate other advantages and effects of the present invention from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in this description can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and the features in the embodiments can be combined with one another where there is no conflict.

It should be noted that the illustrations provided in the following embodiments only illustrate the basic idea of the present invention in a schematic manner. Instead of the number, shape and size of the components that are adopted during the actual implementation, the figures only show the components related to the present invention. During actual implementation, the type, quantity, and ratio of each component can be changed at will, and the layout of the components may also be more complicated.

All directional indications (such as up, down, left, right, front, back, horizontal, vertical . . . ) in the embodiments of the present invention are only used to explain the relative positional relationship, movement, etc., of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly. It is defined that the up-down direction shown on the paper sheet ofFIG. 2is the up-down direction in the present invention, and the direction from the mesh cover assembly to the burner on the paper sheet is defined as the direction from outside to inside.

As shown inFIGS. 1-17, a heater includes a body, a burner assembly5, a gas tank6, and a reflecting plate3. The burner assembly5is installed on the body. The gas tank6is arranged in the body and directly below the burner assembly5, with an interface end connected to a fuel inlet end of the burner assembly5via a valve7. The reflecting plate3is installed in the body and located between the burner assembly5and the gas tank6, to prevent heat coming from a bottom portion of a burner51of the burner assembly5from being radiated directly to the interface end61of the gas tank6, and to allow the heat around the burner51to be radiated to a periphery62of the interface end61of the gas tank6and heat the gas tank6.

As shown inFIG. 2, the body includes a furnace body1and a mesh cover assembly2that is detachably installed on the furnace body1. An adjustment switch10, through which the gas output of the gas tank6is controlled, is provided on the furnace body1. A cavity (not illustrated in the figures) that is capable of containing the mesh cover assembly2is provided at a lower opening of the furnace body1. The cavity is also used for containing the gas tank6when in use. During packaging and shipping, the mesh cover assembly2is disposed within the cavity to reduce the overall volume of the package, so as to save the cost of packaging and shipping. In order to limit the position of the mesh cover assembly2contained in the cavity and to avoid the mesh cover assembly2from coming out of the cavity, the furnace body1also includes a limiting assembly or a supporting leg4. The limiting assembly may be a fastener that is provided on the upper end surface of the furnace body1. The fastener passes through the upper end surface of the furnace body1and is fixedly connected to the mesh cover assembly2. Other structures may also be used to limit the position of the mesh cover assembly2.

As shown inFIGS. 2 and 4-6, the supporting leg4, which is made of a rubber material, is fixed to the lower end surface of the furnace body1. In this embodiment, the supporting leg4is provided in three sets fixed circumferentially on the lower side of the furnace body1. The supporting legs4not only serve as limiting components for the mesh cover assembly2placed in the cavity, but also serve as supporting components to support the heater. In this embodiment, the supporting legs4are specifically connected to the furnace body1, so that an outer peripheral wall of the lower end surface of the furnace body1is bent inward to form an annular support surface18. The annular support surface18has a cross-section that is in the shape of a “C” in the axial direction of the furnace body1. Indeed, the shape of the annular support surface18may be adjusted according to the process or actual needs. Each of the supporting legs4is provided, on the upper end surface, with an L-shaped connecting surface that includes a longitudinal surface41and a horizontal surface42. The horizontal surface42abuts against the annular support surface18, and the longitudinal surface41abuts against the outer peripheral wall of the furnace body1and is fastened by the fastener, which facilitates the disassembly and assembly of the two and is easy to realize. The fastener may be a screw.

In one or more embodiments, the longitudinal surface41is provided with a first screw hole43, the horizontal surface42is provided with a second screw hole44, and the annular support surface18is provided with a third screw hole (not illustrated in the figures) that is opposite to the second screw hole44for spare use. The supporting leg4is also provided with a first receiving groove45for containing the fastener at a position behind the first screw hole43and a second receiving groove46for containing the fastener at a position below the second screw hole44. In the connection between the supporting leg4and the furnace body1, to enhance the overall structural strength, the first screw hole43is first considered to be assembled with the screw hole that is provided on the outer peripheral wall of the furnace body1. When the supporting leg4is installed on the furnace body1in the above manner, after the installation is not firm enough or flattened, the second screw hole44and the third screw hole are considered to be used for assembly.

As shown inFIGS. 2 and 3, the upper end surface of the furnace body1comprises an installation plane11and a concave surface12that forms a cavity. The mesh cover assembly2is mounted on the installation plane11. The limiting assembly limits the mesh cover assembly2to the installation plane11, which is provided on the upper end surface of the furnace body1, so that the mesh cover assembly2can be conveniently limited and mounted on the upper end surface of the furnace body1, in order to meet the purpose of being detachable and not easy to come out when used. The upper end surface of the furnace body1is also provided with a raised ring-shaped limiting block19. The circular area enclosed by the ring-shaped limiting block19has a diameter not less than the outer diameter of the lower end surface of the mesh cover assembly2, to further limit the outward movement of the mesh cover assembly2after it is placed on the upper end surface of the furnace body1.

As shown inFIGS. 3 and 7, the mesh cover assembly2includes a cover with a cylindrical structure that is enclosed by a plurality of longitudinal steel bars22arranged in an annular array, a bottom ring21and an upper ring20that both are in a circular ring shape. The upper and lower ends of each set of the steel bars22, which may be curved or straight, are respectively connected to the bottom ring21and the upper ring20. The limiting assembly limits the position of the mesh cover assembly2in a variety of ways. The limiting assembly may be composed of a plurality of sets of L-shaped rotating rods15that are pivotally connected to the installation plane11of the furnace body1, and the limiting assembly locks or unlocks the mesh cover assembly2by rotation. The rotation positions of the L-shaped rotating rod15include a first rotation position and a second rotation position. The L-shaped rotating rod15limits the mesh cover assembly2from coming out of the furnace body1when rotating to the first rotation position, and releases the limit on the mesh cover assembly2and allows the mesh cover assembly2to come out of the furnace body1when rotating to the second rotation position. The installation method of the L-shaped rotating rod15to the installation plane11is specifically as follows: the L-shaped rotating rod15has one end with external threads, the installation plane11is provided with the same number of screw holes as the L-shaped rotating rod15, and the one end of the L-shaped rotating rod15is screwed into the screw hole to meet the purpose of rotatability. The L-shaped rotating rod15has another end that is opposite to the upper end surface of the furnace body1and rotates to a position that intersects an edge of the bottom ring21, thereby achieving the purpose of limiting the position. The L-shaped rotating rods15may be provided in three sets distributed in a ring shape.

In one or more embodiments, the limiting assembly may also comprise at least one set of slotted hole16that is fixed on the installation plane11and at least one clamping joint23that is fixed on the lower end surface of the bottom ring21of the mesh cover assembly2. The clamping joint23and the slotted hole16are in equal numbers and matched in structure. The clamping joint23and the slotted hole16are assembled together, so that the mesh cover assembly2may be conveniently limited and mounted on the installation plane11of the furnace body1, to meet the purpose of being detachable and not easy to come out when in use. In this embodiment, the slotted holes16and the clamping joints23are provided in three sets distributed in a ring shape, respectively, and the positions of the slotted holes16correspond to those of the clamping joints23one to one.

In one or more embodiments, the slotted hole16may be gourd-shaped as a whole, and the clamping joint23may be T-shaped as a whole. When in use, the clamping joint23is extended into the slotted hole16and locked after rotation, so as to achieve the limiting purpose of preventing it from coming out.

In one or more embodiments, the slotted hole16may also be provided in a circular shape. The outer circumference of the head end of the clamping joint23may be provided with external threads. The clamping joint23may be fixed by a first fastener after being extended into the slotted hole16. The first fastener may be a butterfly nut or bolt.

In one or more embodiments, the limiting assembly has an annular groove structure formed by an annular inner recess on the upper end surface of the furnace body1. The bottom ring21of the mesh cover assembly2, without head-to-tail connection, is embedded into the annular groove structure and clamped by the tension of the mesh cover assembly2itself, to prevent the mesh cover assembly2from coming out.

As described above, when the heater is in use, the limiting assembly limits the mesh cover assembly2on the upper end surface of the furnace body1. When the heater is packaged, the limiting assembly limits the mesh cover assembly2within the cavity. In other words, the structure of the limiting assembly has multiple uses, which can effectively reduce the packaging volume of the heater and facilitate packaging, transportation and carrying.

As shown inFIG. 1, a support assembly9is provided above the mesh cover assembly2. The support assembly9includes a fixed plate91that is fixedly connected to the upper ring20of the mesh cover assembly2, and an adjusting plate92that is located inside the mesh cover assembly2and pivotally connected to the fixed plate91. A heating cover8is fixedly provided at the lower end of the adjusting plate92. Specifically, the fixed plate91is fixedly provided with a first hot air hole93that penetrates through, and the adjusting plate92is fixedly provided with a second hot air hole94that penetrates through. The number, position and shape of the first hot air hole93match those of the second hot air hole94. In this embodiment, the first hot air holes93and the second hot air holes94are arranged in six sets distributed in a ring shape, one set of which is fixedly provided with a push plate96on the side wall of the first hot air hole93. The push plate96is inserted upwardly into the first hot air hole93. The central positions of the fixed plate91and the adjusting plate92are fixedly provided with a connecting hole, respectively. The third fastener pivotally connects the fixed plate91and the adjusting plate92through the connecting holes sequentially. The upper end of the fixed plate91is also fixedly provided with a supporting block95for supporting.

In one or more embodiments, during the implementation process, the heating time may be controlled by the movement of the push plate96in the first hot air hole93. When the push plate96moves to the position where the first hot air hole93is completely communicated with the inside of the mesh cover assembly2through the second hot air hole94, the heating time is short. As the movement of the push plate96in the first hot air hole93makes the area where the first hot air hole93, under the action of the adjusting plate92, is communicated with the inside of the mesh cover assembly2gradually decrease until completely disappears, the heating time gradually increases.

As shown inFIGS. 8-13, the lower end of the burner assembly5is fixed on the installation plane11and is connected to the gas tank6arranged in the cavity via the valve7. The valve7is fixed on the upper surface of the cavity, and the burner assembly5is erected on the upper end surface of the furnace body1. The interface end61of the gas tank6is connected to the inlet end of the valve7, which is provided with a sealing ring71and connected with the interface end of the gas tank6to perform sealing. The burner assembly5includes the burner51and an ejector tube that is connected to the lower end of the burner51and communicated with the interior of the furnace body1. The outlet end of the valve7passes through the installation plane11. The lower end of the ejector tube of the burner assembly5is mounted on the concave surface12of the furnace body1and forms a gap between its inner wall and the outlet end of the valve7, so that the heat generated by the burner51will not be transmitted to the inlet end of the valve to affect the sealing ring71, thereby protecting the sealing ring71from reduction of the sealing effect due to thermal deformation, and effectively improving the service life of the sealing ring.

In one or more embodiments, the ejector tube includes an inner tube52and an outer tube53that are nested together. The lower end of the inner tube52is fixedly mounted on the concave surface12of the furnace body1, and the upper end is connected to the burner51. The outer tube53may be sleeved on the outer circumference of the inner tube52while rotating relative to the inner tube52. The inner tube52and the outer tube53are respectively provided with at least one vent54, so as to make the vent54on the inner tube52and the one on the outer tube53be opposite or staggered or closed by rotating the outer tube53to adjust the air intake volume. A rotating rod55is fixedly provided on the outer peripheral wall of the outer tube53to facilitate the rotation of the outer tube53. A ceramic sleeve is embedded between the inner tube52and the outer tube53to enhance the heat insulation effect, thereby improving the protection strength and effect of the sealing ring.

In one or more embodiments, the valve7includes a valve body (not illustrated in the figures), a valve core72contained in a valve cavity of the valve body, a rotating handle73connected to one end of the valve core72and extending out of the valve body. The adjustment switch10is connected to the rotating handle73. The inlet end and outlet end of the valve7are respectively located on the upper and lower end surfaces of the valve body and communicate with the valve cavity respectively. The valve body is fixedly mounted on the top surface of the cavity by a screw. The upper end of the inner tube52is recessed to form a truncated cone-shaped mounting slot (not illustrated in the figures), and the burner51has a “T” shape as a whole, with the lower end inserted into the truncated cone-shaped mounting slot and fixed by a second fastener that passes through the side wall of the inner tube52.

In one or more embodiments, during the implementation process, the heater may further comprise an igniter or an ignition gun for ignition. After the valve7is opened and the ignition is operated, LPG (preferably propane) in the gas tank6is ejected from the interface end61of the gas tank6to the inner tube52and the outer tube53via the valve7, and then generates fire and heat on the burner51. Continuous use makes the inner tube52generate more heat, and the outer tube53may be rotated so that the vent54may adjust its air intake for the purpose of adjusting the size of the flame. At the same time, as there is a gap between the outer pipe53and the outlet end of the valve7, no heat conduction will occur therebetween, avoiding the problem of overheating of the valve7and the interface end61of the gas tank6, thereby protecting the sealing ring71from reduction of the sealing effect due to thermal deformation.

As shown inFIGS. 2 and 14, the reflecting plate3is located between the burner assembly5and the gas tank6. The reflecting plate3allows the heat generated by the burner51to be radiated to the periphery of the interface end61of the gas tank6while avoiding direct heat radiation to the interface end61, so as to make the fuel in the gas tank6more fully used, avoiding the problems of wasting due to condensation inside the gas tank6caused by the low temperature in the gas tank6, and effectively improving the fuel utilization rate, especially for areas with low air pressure such as plateaus.

In one or more embodiments, the reflecting plate3may include a blocking area that includes a projection plane of the burner51on the reflecting plate3in a longitudinal direction for blocking the heat at the bottom of the burner51from being radiated directly to the interface end61of the gas tank6. The reflecting plate3may further include a radiation area that does not overlap with the blocking area and allows the heat around the burner51to be radiated to the periphery62of the interface end of the gas tank6.

In one or more embodiments, the reflecting plate3may be provided with at least one through hole31as a radiation area that penetrates longitudinally and does not overlap with the blocking area. The reflecting plate3has a circular plate structure as a whole. In this embodiment, the through holes31are provided in four sets distributed evenly in a ring shape. The through holes31each has an arcuated kidney-shaped slot structure as a whole. The concave surface12is fixedly provided with a heat-passing hole13that matches the through hole31. The heat-passing hole13and the through hole31are in equal numbers, in the same shape, and are opposite in position. The heat-passing hole13, the through hole31, and the cavity are communicated to maximize the heat radiation effect.

In one or more embodiments, the center of the reflecting plate3may also be provided with a mounting hole33for passing through the inner tube52of the burner assembly5.

In one or more embodiments, during the implementation process, the heating cover8that is suspended in the mesh cover assembly2may have a lower end that faces the through hole31and may be located in the periphery of the burner51. On the one hand, the blocking area of the reflecting plate3blocks the heat at the bottom of the burner51from being radiated directly to the interface end of the gas tank6, and the through hole31allows the heat near the lower end of the heating cover8to directly be radiated to the periphery of the interface end of the gas tank6to heat the gas tank. At the same time, due to the higher temperature above the through hole31and the lower temperature below the through hole, a bottom-up convection process of cold air is also carried out in the through hole31, so that a circulation of air flow is formed.

As shown inFIGS. 3 and 15-17, the upper end surface of the furnace body1is provided with a support frame14, which has an L-shaped curved plate structure as a whole, and is mounted on the installation plane11through a connecting member144. The support frame14extends inward and outward to form an inner protrusion143and an outer protrusion142, respectively. In the longitudinal direction, the inner protrusion143and the outer protrusion142are arranged in a staggered manner up and down to clamp the reflecting plate3, and restrict the support frame14from rotating around the connecting member144through the reflecting plate3, thereby enhancing the stability and reliability of the installation structure.

In one or more embodiments, the support frames14are provided in three sets distributed evenly in a ring shape. The reflecting plate3is provided with a mounting slot32for passing through the support frame14. After the support frame14passes through the mounting slot32, the inner protrusions143and the outer protrusions142clamp the reflecting plate3together, and respectively abut against the upper end surface and the lower end surface of the reflecting plate3. The inner and outer sides of the main body141of the support frame14are opposite to the inner and outer walls of the mounting slot32, respectively. The above configuration advantageously strengthens the stability of the assembly of the support frame14and the reflecting plate3.

In one or more embodiments, the support frame body141of the support frame14may also be provided with a reinforcing rib145to enhance the overall strength. The upper end of the support frame body141is formed with a serrated support portion146that can increase the strength after the pot is placed. In the horizontal direction, the height of the support portion146on the inner side is lower than the height on the outer side, so that the pots can be placed conveniently. In the longitudinal direction, the minimum height of the inner protrusion143is higher than the maximum height of the outer protrusion142, and the lower end surface of the inner protrusion143and the upper end surface of the outer protrusion142are both arranged horizontally. This makes the reflecting plate3more stable after clamping. A screw may be used as the above-mentioned connecting member144.

In one or more embodiments, a sum of the horizontal width of the support frame body141plus the maximum width of the outer protrusion142is slightly smaller than the horizontal width of the mounting slot32on the reflecting plate3, and the sum of the horizontal width of the main body of the support frame14plus the maximum width of the inner protrusion143is slightly larger than the horizontal width of the mounting slot32on the reflecting plate3, so that the reflecting plate3may come out of the support frame14downwardly rather than upwardly.

As shown inFIG. 1, the heater may further include a handle17, both ends of which are inserted into the furnace body1. In addition to the function of carrying the heater and facilitating the movement of the heater, the handle17is also used to push the push plate96at both ends to avoid burns to the hands.

In one or more embodiments, the first receiving groove45is away from the cavity of the furnace body1, and the fastener is inserted into the first receiving groove45and the first screw hole43sequentially to fixedly connect the supporting leg4and the furnace body1, that is, the insertion direction of the fastener is the direction from the outside of the furnace body1to the cavity. In yet another embodiment, the insertion direction of the fastener is the direction from the cavity of the furnace body1to the outside of the furnace body1. Through the fastening method of the fastener in this embodiment, overall aesthetics is achieved.

In one or more embodiment, the limiting assembly is configured to have an annular groove structure, the bottom ring21of the mesh cover assembly2, without head-to-tail connection, is embedded into the annular groove structure and clamped by a tension of the mesh cover assembly2itself to achieve the purpose of limiting the position. In yet another embodiment, as shown inFIG. 18, the bottom ring21of the mesh cover assembly2, without head-to-tail connection, is fixedly provided with the clamping joint23, the limiting assembly includes an annular groove structure and a hole111that matches the clamping joint23, the bottom ring21is embedded in the annular groove and clamped in the annular groove by the tension of the mesh cover assembly2itself to achieve the purpose of limiting the position, at the same time, the clamping joint23is assembled with the hole111to not only position the installation of the mesh cover assembly2, but also further limit the position of the mesh cover assembly2to prevent it from coming out.

In one or more embodiments, the clamping joints23are provided in three sets, with two sets fixedly provided at the head and the tail of the bottom ring21and the other located in the middle of the bottom ring21. The positions of the three sets of the clamping joints23effectively keep the mesh cover assembly2in a stable state when placed alone. The holes111and the clamping joints23are in equal numbers and match in structure, and the positions of the hole111correspond to those of the clamping joints23one to one.

In one or more embodiments, the hole111may be gourd-shaped as a whole, and the clamping joint23may be T-shaped as a whole. When in use, the clamping joint23is extended into the hole111and clamped through the tension of the mesh cover assembly2itself, so as to achieve the limiting purpose of preventing it from coming out upwardly.

In one or more embodiments, the two sets of the holes111that are opposite to the two sets of the clamping joints23fixed at the head and tail of the bottom ring21are communicated.

In one or more embodiments, as shown inFIG. 19, the reflecting plate3has a circular plate structure as a whole, the projection surface of the furnace head51on the reflecting plate3in the longitudinal direction is completely located in the reflecting plate3, so as to block the heat at the bottom of the burner51from being radiated directly to the interface end of the gas tank6, the main part of the reflecting plate3constitutes the above-mentioned blocking area, and the part outside the outer edge of the reflecting plate3constitutes the above-mentioned radiation area.

In one or more embodiments, the projection plane of the burner51on the reflecting plate3in the longitudinal direction is circular and has a diameter that is not greater than the diameter of the reflecting plate3, so as to block the heat at the bottom of the burner51from being radiated directly to the interface end of the gas tank6. The projection of the gas tank6on the horizontal surface where the reflecting plate3is located in the longitudinal direction is circular and has a diameter that is larger than the diameter of the reflecting plate3, so as to allow the heat in the periphery of the burner51to be radiated to the periphery62of the interface end of the gas tank6.

In one or more embodiments, the reflecting plate3is mounted on the inner tube52of the burner assembly5, and the plane of the upper end surface of the reflecting plate3is in a horizontal position.

In one or more embodiments, as shown inFIGS. 20 and 21, the reflecting plate3is composed of a plurality of plates34that are located on the same horizontal surface, and at least one plate34is provided with a through hole31for allowing the heat around the burner51to be radiated to the periphery of the interface end of the gas tank6. The projection surface of the burner51on the reflecting plate3in the longitudinal direction constitutes the blocking area, and two adjacent plates34are seamlessly connected at least in the blocking area, to block the heat at the bottom of the burner51from being radiated directly to the interface end of the gas tank6. The through hole31does not overlap with the blocking area.

In one or more embodiments, the reflecting plate3has a circular plate structure as a whole. In this embodiment, the through holes31are provided in four sets distributed evenly in a ring shape. The through holes each31has an arcuated kidney-shaped slot structure as a whole.

In one or more embodiments, the plates34, arranged in a fan shape, are provided in two sets that are distributed in mirror symmetry. Each set of the plates34is provided with a through hole31.

In one or more embodiments, as shown inFIGS. 22 and 23, the reflecting plate3includes an inner plate35and an outer plate36that are concentrically arranged, and an annular channel37is provided between the inner plate35and the outer plate as the above-mentioned radiation area; the projection plane of the burner51on the reflecting plate3in the longitudinal direction is completely located on the inner plate body35; the inner plate35serves as the above-mentioned blocking area, and the inner plate35and the outer plate36are located on the same horizontal surface.

In one or more embodiments, the as shown inFIGS. 24 and 25, the through holes31have a square groove structure as a whole, and are evenly arranged in the periphery of the blocking area in a ring shape; each set of the through holes31is respectively connected to a baffle38that is located above or below the reflecting plate3. The baffle38has a substantially rectangular shape, and the sides of the baffle38are respectively connected to the edge of the through hole31; each set of the baffle38forms a channel, through which the flow of heat is slowed down, in the horizontal direction with the reflecting plate3, respectively.

In one or more embodiments, the shape and size of the reflecting plate3may be changed according to the overall size and requirements of the reflecting plate, and are not limited thereto.

The embodiments described are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without doing any creative work fall within the protection scope of the present invention.