Patent Description:
The requirements for eating habits and exercising habits of human beings keep enhancing along with the advancing living standard. More and more people prefer ingesting foods which are more natural or more nutritious, such as natural juice or whey protein, and further complement with exercising so as to maintain a good body shape. In general, the solids contents of solids-containing beverages or instant drinks, such as natural juice or whey protein, usually precipitate because of standing for a while after prepared since they contain materials which is insoluble or having a low solubility. To solve the above problem, for example, <CIT> discloses a manual juicing multifunctional water cup including a cup cover, a cup body and a base, wherein a rotatable cutter head is arranged inside the cup body and a tea strainer is covered outside the cutter head. Moreover, there might be no usable utensils for stirring at hand while people drinking the aforementioned beverages during various activities, which not only results in the solids contents of the beverages cannot be totally ingested by human body, but also affects the flavor of the beverages. Furthermore, when it comes to making some drinks while doing various activities, the water-blocking function and the stable stirring function of the cup are usually the parts that people care the most.

Therefore, developing a cup structure which is able to stir and mix the fluid therein has a practical value in practice.

According to one aspect of the present disclosure, a cup structure includes a bottom, a body and a top cover. The bottom includes a base, a driving assembly, a transmitting assembly and a cover. A top surface of the base is sunk inward and forms an accommodating space. The driving assembly is disposed in the accommodating space. The transmitting assembly is disposed in the accommodating space and is geared into the driving assembly. The cover is disposed on the transmitting assembly and is screwed on a top of the accommodating space, wherein the cover includes a protrusion, a water-blocking layer and a mixer. The protrusion is protruded along a direction away from the cover. The water-blocking layer is disposed around a side surface of the protrusion. The mixer is disposed on a top of the protrusion and has at least one mixing blade, wherein a length of a projection of the at least one mixing blade vertically projected on the protrusion is shorter than a radius of an inscribed circle of a top surface of the protrusion. A bottom edge of the body is detachably sleeved at an outer edge of the water-blocking layer. The top cover is covered on a top of the body. A power is transmitted to the mixer by the transmitting assembly after the power is generated by the driving assembly, so that the at least one mixing blade is rotated.

In one example, the transmitting assembly can further include a ring internal gear, a gear assembly and a transmitting axle. The ring internal gear includes a plurality of teeth and a partition. The partition separates the ring internal gear into an upper side and a downside, and the downside of the ring internal gear is internal geared into the driving assembly. The gear assembly includes an axial transmitting gear and at least one gear. The upper side of the ring internal gear is internal geared into the at least one gear. The transmitting axle is disposed on a center of a top of the axial transmitting gear, wherein the transmitting axle is disposed through the cover and is connected to the mixer so as to transmit the power to the mixer.

In one example, a rotating laps output can be enhanced by a gear ratio of the ring internal gear to the gear assembly.

In one example, the driving assembly can further include a volute spring, a reel, a pulling cord and at least one first ratchet tooth. The volute spring is disposed in the accommodating space. A side surface of the reel is sunk inward to a center of the reel and forms a groove, and one end of the volute spring is connected to a bottom surface of the reel. One end of the pulling cord is connected to the groove, the other end of the pulling cord is disposed through the base and is connected to a pulling ring outer the base. The at least one first ratchet tooth is screwed on a top of the reel, wherein the downside of the ring internal gear is internal geared into the at least one first ratchet tooth. The reel is rotated and the volute spring is stretched by pulling the pulling cord away from the cup structure through the pulling ring, and the power is transmitted to the transmitting assembly by the at least one first ratchet tooth. The volute spring rebounds in a reverse direction to make the reel rotate in a reverse direction after the pulling ring is loosened, so as to transmit the power to the transmitting assembly and make the pulling cord return to an original position.

In one example, the driving assembly can further include at least one brake. The at least one brake is screwed on the top of the reel and being adjacent to the at least one first ratchet tooth, and a number of the at least one brake is corresponding to a number of the at least one first ratchet tooth.

In one example, the driving assembly can further include a first bottom plate, a button, an extension spring, a first rotating assembly and at least one second ratchet tooth. The first bottom plate is screwed on the top surface of the base and includes a string-like through hole. The button is disposed on a surface of the first bottom plate facing the transmitting assembly, wherein one end of the button is disposed through and protrudes from the base, a downside of the other end of the button extends toward the surface of the first bottom plate facing the base, and the downside of the other end of the button is disposed through the string-like through hole and forms a hook, wherein a center of a part of the button inside the base has a bar-like through hole at a direction vertical to the surface of the first bottom plate facing the transmitting assembly, and a side of the bar-like through hole has a plurality of ratchet teeth structures. One end of the extension spring is disposed at the hook, and the other end of the extension spring is disposed on the surface of the first bottom plate facing the base and toward a direction in which the button protrudes from the base. The first rotating assembly includes a first plate and a first gear. The first gear is disposed protrudingly on a surface of the first plate facing the base and is disposed at a center of the surface of the first bottom plate facing the transmitting assembly through the bar-like through hole. The ratchet teeth structures of the bar-like through hole are internal geared into the first gear. The at least one second ratchet tooth is screwed on a surface of the first rotating assembly facing the transmitting assembly, wherein the downside of the ring internal gear is internal geared into the at least one second ratchet tooth. A relative movement between the ratchet teeth structures of the button and the first gear of the first rotating assembly is performed by pressing the button so as to rotate the first gear and drive the first rotating assembly to rotate and further transmit the power to the transmitting assembly through the at least one second ratchet tooth, and the button is released so as to rebound the extension spring and make the button return to an original position. A relative movement in a reverse direction between the ratchet teeth structures of the button and the first gear of the first rotating assembly is performed during a position returning process of the button so as to rotate the first gear and drive the first rotating assembly to rotate and further transmit the power to the transmitting assembly through the at least one second ratchet tooth.

In one example, the driving assembly can further include a second bottom plate and a heavy block. The second bottom plate is screwed on the top surface of the base and includes a second axle at a center of the second bottom plate. The second axle is connected to a center of the downside of the ring internal gear, and an annular rotating space is formed by the second bottom plate, the second axle and the ring internal gear. The heavy block is screwed at the downside of the ring internal gear, wherein the heavy block is rotated around in the annular rotating space. The heavy block is rotated around in the annular rotating space by shaking the cup structure horizontally so as to drive the ring internal gear to rotate and further transmit the power to the transmitting assembly.

In one example, the driving assembly can further include a third bottom plate, an oscillating arm assembly, a second rotating assembly and at least one third ratchet tooth. The third bottom plate is screwed on the top surface of the base and includes a third axle at a center of a surface of the third bottom plate facing the transmitting assembly. One end of the third axle is connected to a center of the downside of the ring internal gear. The oscillating arm assembly includes an oscillating arm and a side gear. The oscillating arm is disposed through the side gear, and one end of the oscillating arm is disposed through a side surface of the third axle and the other end of the oscillating arm is disposed through and protrudes from the base. The second rotating assembly includes a second plate and a second gear. The second gear is disposed protrudingly on a surface of the second plate facing the base and is geared into the side gear, and the third axle is disposed through a center of the second gear and a center of the second plate. The at least one third ratchet tooth is screwed on a surface of the second plate facing the transmitting assembly, wherein the downside of the ring internal gear is internal geared into the at least one third ratchet tooth. The side gear is rotated and drives the second gear by rotating a part of the oscillating arm protruding from the base so as to make the second rotating assembly rotate and further transmit the power to the transmitting assembly by the at least one third ratchet tooth.

In one example, the driving assembly can further include a fourth bottom plate, a gear rack, a third rotating assembly and at least one fourth ratchet tooth. The fourth bottom plate is screwed on the top surface of the base and includes a gear rack groove on a surface of the fourth bottom plate facing the transmitting assembly. The gear rack is detachably disposed through and protruding from the base and is disposed in the gear rack groove. The third rotating assembly includes a third plate and a third gear. The third gear is disposed protrudingly on a surface of the third plate facing the base and is geared into the gear rack, and the third gear is connected to the fourth bottom plate. The at least one fourth ratchet tooth is screwed on a surface of the third plate facing the transmitting assembly, and the downside of the ring internal gear is internal geared into the at least one fourth ratchet tooth. A relative movement between the gear rack and the third gear is performed by pulling out the gear rack in a direction away from the cup structure so as to rotate the third rotating assembly and further transmit the power to the transmitting assembly by the at least one fourth ratchet tooth. A relative movement in a reverse direction between the gear rack and the third gear is performed by inserting the gear rack to the cup structure so as to rotate the third rotating assembly and further transmit the power to the transmitting assembly by the at least one fourth ratchet tooth.

Please refer to <FIG>, <FIG> and <FIG>. <FIG> is a schematic view of a cup structure <NUM> according to one embodiment of the present disclosure. <FIG> is a three dimensional structure schematic view of a bottom <NUM> of the cup structure <NUM> according to one embodiment of the present disclosure. <FIG> is an explosive view of the bottom <NUM> of the cup structure <NUM> of <FIG>. As shown in <FIG>, <FIG> and <FIG>, the cup structure <NUM> includes the bottom <NUM>, a body <NUM> and a top cover <NUM>. The bottom <NUM> includes a base <NUM>, a driving assembly <NUM>, a transmitting assembly <NUM> and a cover <NUM>. A top surface of the base <NUM> is sunk inward and forms an accommodating space <NUM>. The driving assembly <NUM> and the transmitting assembly <NUM> are disposed in the accommodating space <NUM>, and the transmitting assembly <NUM> is geared into the driving assembly <NUM>. The cover <NUM> is disposed on the transmitting assembly <NUM> and is screwed on a top of the accommodating space <NUM>, wherein the cover <NUM> includes a protrusion <NUM>, a water-blocking layer <NUM> and a mixer <NUM>. The protrusion <NUM> is protruded along a direction away from the cover <NUM>. The water-blocking layer <NUM> is disposed around a side surface of the protrusion <NUM>. The mixer <NUM> is disposed on a top of the protrusion <NUM> and has at least one mixing blade <NUM>, wherein a length of a projection of the at least one mixing blade <NUM> vertically projected on the protrusion <NUM> is shorter than a radius of an inscribed circle of a top surface of the protrusion <NUM> so as to prevent the length of the at least one mixing blade <NUM> from being so long that the at least one mixing blade <NUM> cannot be disposed in the cup structure <NUM>. A bottom edge of the body <NUM> is detachably sleeved at an outer edge of the water-blocking layer <NUM>. The top cover <NUM> is covered on a top of the body <NUM>. When a power is transmitted to the mixer <NUM> by the transmitting assembly <NUM> after the power is generated by the driving assembly <NUM>, the at least one mixing blade <NUM> is rotated so as to reach the goal of mixing the fluid in the cup structure <NUM> of the present disclosure. In the embodiment of the present disclosure, a number of the mixing blade <NUM> is two, but the present disclosure is not limited thereto.

In detail, although an outward of the body <NUM> of the cup structure <NUM> and an outward the top cover <NUM> of the cup structure <NUM> are shown in <FIG> of the present disclosure, the present disclosure is not limited thereto. As long as the fluid contained in the cup structure <NUM> does not leak to the outside of the cup structure <NUM> during mixing or not mixing after assembling the body <NUM> and the top cover <NUM> to the bottom <NUM>.

Please further refer to <FIG> is a three dimensional structure schematic view of a transmitting assembly <NUM> of the cup structure <NUM> according to one embodiment of the present disclosure. The transmitting assembly <NUM> can further include a ring internal gear <NUM>, a gear assembly <NUM> and a transmitting axle <NUM>. The ring internal gear <NUM> includes a plurality of teeth <NUM> and a partition <NUM>. The partition <NUM> separates the ring internal gear <NUM> into an upper side and a downside, and the downside of the ring internal gear <NUM> is internal geared into the driving assembly <NUM>. The gear assembly <NUM> includes an axial transmitting gear <NUM> and at least one gear <NUM>, wherein the upper side of the ring internal gear <NUM> is internal geared into the at least one gear <NUM>. The transmitting axle <NUM> is disposed on a center of a top of the axial transmitting gear <NUM>, wherein the transmitting axle <NUM> is disposed through the cover <NUM> and is connected to the mixer <NUM> so as to transmit the power to the mixer <NUM> and rotate the at least one mixing blade <NUM>. In detail, a number of the gear <NUM> of the gear assembly <NUM> in <FIG> is three, but the present disclosure is not limited thereto.

In detail, the rotating laps output can be enhanced by a gear ratio of the ring internal gear <NUM> to the gear assembly <NUM>. The gear ratio of the ring internal gear <NUM> of the transmitting assembly <NUM> to the gear assembly <NUM> of the transmitting assembly <NUM> is <NUM>:<NUM>, that is the ring internal gear <NUM> rotates for one turn can make the gear assembly <NUM> rotates for four turn, and drives the mixer <NUM> and the at least one mixing blade <NUM> thereon rotates for four turn. Therefore, four times the rotating laps output can be offered, but the present disclosure is not limited thereto.

Please further refer to <FIG> and <FIG>. <FIG> is a three dimensional structure schematic view of the driving assembly <NUM> of the cup structure <NUM> according to 1st example of one embodiment of the present disclosure. <FIG> is an explosive view of the driving assembly <NUM> of <FIG>. The driving assembly <NUM> can further include a volute spring <NUM>, a reel <NUM>, a pulling cord <NUM> and at least one first ratchet tooth <NUM>. The volute spring <NUM> is disposed in the accommodating space <NUM>. A side surface of the reel <NUM> is sunk inward to a center of the reel <NUM> and forms a groove (the numeral is omitted), and one end of the volute spring <NUM> is connected to a bottom surface of the reel <NUM>. One end of the pulling cord <NUM> is connected to the groove, the other end of the pulling cord <NUM> is disposed through the base <NUM>, and the pulling cord <NUM> is connected to a pulling ring <NUM> on the outer edge of the base <NUM>. At least one first ratchet tooth <NUM> is screwed on a top of the reel <NUM>, wherein the downside of the ring internal gear <NUM> is internal geared into the at least one first ratchet tooth <NUM>.

In this example, the reel <NUM> can be rotated and the volute spring <NUM> can be stretched by pulling the pulling cord <NUM> away from the cup structure <NUM> through the pulling ring <NUM>, and the power is transmitted to the transmitting assembly <NUM> by the at least one first ratchet tooth <NUM>. On the other hand, the volute spring <NUM> rebounds in a reverse direction to make the reel <NUM> rotate in a reverse direction after the pulling ring <NUM> is loosened, so as to transmit the power is to the transmitting assembly <NUM> and make the pulling cord <NUM> return to an original position.

In detail, the driving assembly <NUM> can further include at least one brake <NUM> which is screwed on the top of the reel <NUM> and being adjacent to the at least one first ratchet tooth <NUM>, and a number of the at least one brake <NUM> is corresponding to a number of the at least one first ratchet tooth <NUM>. In this example, the number of the first ratchet teeth <NUM> and the number of the brake <NUM> are both two, but the present disclosure is not limited thereto.

Further, the pulling ring <NUM> of the driving assembly <NUM> can be stored and sleeved under the bottom <NUM> when a user of the cup structure <NUM> does not need to stir, so as to reach the goal of integrating the cup structure <NUM> and reduce a space occupied by the cup structure <NUM>, but the present disclosure is not limited thereto.

Although in <FIG>, the driving assembly <NUM> is assembled with the base <NUM>, the transmitting assembly <NUM> and the cover <NUM> to form the bottom <NUM>, the structure of the driving assembly and the driving method of the driving assembly in other example can be different from the driving assembly <NUM> of this example. The related details will be further described in the subsequent paragraphs, which will not be described herein.

Please refer to <FIG> and <FIG>. <FIG> is a three dimensional structure schematic view of a driving assembly <NUM> of the cup structure according to 2nd example of one embodiment of the present disclosure. <FIG> is a three dimensional structure schematic view in another perspective of the driving assembly <NUM> of the cup structure according to 2nd example of one embodiment of the present disclosure. <FIG> is an explosive view of the driving assembly <NUM> of <FIG>. The driving assembly <NUM> can further include a first bottom plate <NUM>, a button <NUM>, an extension spring <NUM>, a first rotating assembly <NUM> and at least one second ratchet tooth <NUM>. The first bottom plate <NUM> is screwed on the top surface of the base (not shown) and includes a string-like through hole <NUM>. The button <NUM> is disposed on a surface of the first bottom plate <NUM> facing the transmitting assembly (not shown), wherein one end of the button <NUM> is disposed through and protrudes from the base, a downside of the other end of the button <NUM> extends toward the surface of the first bottom plate <NUM> facing the base, and the downside of the other end of the button <NUM> is disposed through the string-like through hole <NUM> and forms a hook <NUM>, wherein a center of a part of the button <NUM> inside the base has a bar-like through hole <NUM> at a direction vertical to the surface of the first bottom plate <NUM> facing the transmitting assembly, and a side of the bar-like through hole <NUM> has a plurality of ratchet teeth structures <NUM>. One end of the extension spring <NUM> is disposed at the hook <NUM>, and the other end of the extension spring <NUM> is disposed on the surface of the first bottom plate <NUM> facing the base and toward a direction in which the button <NUM> protrudes from the base. The first rotating assembly <NUM> includes a first plate <NUM> and a first gear <NUM>, wherein the first gear <NUM> is disposed protrudingly on a surface of the first plate <NUM> facing the base and is disposed at a center of the surface of the first bottom plate <NUM> facing the transmitting assembly through the bar-like through hole <NUM>, and the ratchet teeth structures <NUM> of the bar-like through hole <NUM> are internal geared into the first gear <NUM>. The at least one second ratchet tooth <NUM> is screwed on a surface of the first rotating assembly <NUM> facing the transmitting assembly, wherein the downside of the ring internal gear (not shown) is internal geared into the at least one second ratchet tooth <NUM>. In this example, the number of the second ratchet teeth <NUM> is two, but the present disclosure is not limited thereto.

In this example, a relative movement between the ratchet teeth structures <NUM> of the button <NUM> and the first gear <NUM> of the first rotating assembly <NUM> can be performed by pressing the button <NUM> so as to rotate the first gear <NUM> and drive the first rotating assembly <NUM> to rotate and further transmit the power to the transmitting assembly through the at least one second ratchet tooth <NUM>, and the button <NUM> can be released so as to rebound the extension spring <NUM> and make the button <NUM> return to an original position. Moreover, a relative movement in a reverse direction between the ratchet teeth structures <NUM> of the button <NUM> and the first gear <NUM> of the first rotating assembly <NUM> can be performed during a position returning process of the button <NUM> so as to rotate the first gear <NUM> and drive the first rotating assembly <NUM> to rotate and further transmit the power to the transmitting assembly through the at least one second ratchet tooth <NUM>.

Please refer to <FIG> and <FIG>. <FIG> is a three dimensional structure schematic view of a driving assembly <NUM> of the cup structure according to 3rd example of one embodiment of the present disclosure. <FIG> is an explosive view of the driving assembly <NUM> of <FIG>. The driving assembly <NUM> can further include a second bottom plate <NUM> and a heavy block <NUM>. The second bottom plate <NUM> is screwed on the top surface of the base (not shown), and the second bottom plate <NUM> includes a second axle <NUM> at a center of the second bottom plate <NUM>, wherein the second axle <NUM> is connected to a center of the downside of the ring internal gear <NUM> of the transmitting assembly (not shown), and an annular rotating space S1 is formed by the second bottom plate <NUM>, the second axle <NUM> and the ring internal gear <NUM>. The heavy block <NUM> is screwed at the downside of the ring internal gear <NUM>, wherein the heavy block <NUM> can be rotate around in the annular rotating space S1.

In this example, the heavy block <NUM> can be rotated around in the annular rotating space S1 by shaking the cup structure (not shown) horizontally so as to drive the ring internal gear <NUM> to rotate and further transmit the power to the transmitting assembly.

Please refer to <FIG> and <FIG>. <FIG> is a three dimensional structure schematic view of a driving assembly <NUM> of the cup structure according to 4th example of one embodiment of the present disclosure. <FIG> is an explosive view of the driving assembly <NUM> of <FIG>. The driving assembly <NUM> can further include a third bottom plate <NUM>, an oscillating arm assembly <NUM>, a second rotating assembly <NUM> and at least one third ratchet tooth <NUM>. The third bottom plate <NUM> is screwed on the top surface of the base (not shown) and includes a third axle <NUM> at a center of a surface of the third bottom plate <NUM> facing the transmitting assembly (not shown), wherein one end of the third axle <NUM> is connected to a center of the downside of the ring internal gear (not shown). The oscillating arm assembly <NUM> includes an oscillating arm <NUM> and a side gear <NUM>, wherein the oscillating arm <NUM> is disposed through the side gear <NUM>, and one end of the oscillating arm <NUM> is disposed through a side surface of the third axle <NUM> and the other end of the oscillating arm <NUM> is disposed through and protruding from the base. The second rotating assembly <NUM> includes a second plate <NUM> and a second gear <NUM>, wherein the second gear <NUM> is disposed protrudingly on a surface of the second plate <NUM> facing the base and is geared into the side gear <NUM>, and the third axle <NUM> is disposed through a center of the second gear <NUM> and a center of the second plate <NUM>. The at least one third ratchet tooth <NUM> is screwed on a surface of the second plate <NUM> facing the transmitting assembly, wherein the downside of the ring internal gear is internal geared into the at least one third ratchet tooth <NUM>. In this example, the number of the third ratchet teeth <NUM> is two, but the present disclosure is not limited thereto.

In this example, the side gear <NUM> can be rotate and drive the second gear <NUM> by rotating a part of the oscillating arm <NUM> protruding from the base so as to make the second rotating assembly <NUM> rotate and further transmit the power to the transmitting assembly by the at least one third ratchet tooth <NUM>.

Please refer to <FIG> and <FIG>. <FIG> is a three dimensional structure schematic view of a driving assembly <NUM> of the cup structure according to 5th example of one embodiment of the present disclosure. <FIG> is an explosive view of the driving assembly <NUM> of <FIG>. The driving assembly <NUM> can further include a fourth bottom plate <NUM>, a gear rack <NUM>, a third rotating assembly <NUM> and at least one fourth ratchet tooth <NUM>. The fourth bottom plate <NUM> is screwed on the top surface of the base (not shown) and includes a gear rack groove <NUM> on a surface of the fourth bottom plate <NUM> facing the transmitting assembly (not shown). The gear rack <NUM> is detachably disposed through and protruding from the base, wherein the gear rack <NUM> is disposed in the gear rack groove <NUM>. The third rotating assembly <NUM> includes a third plate <NUM> and a third gear <NUM>, wherein the third gear <NUM> is disposed protrudingly on a surface of the third plate <NUM> facing the base and is geared into the gear rack <NUM>, and the third gear <NUM> is connected to the fourth bottom plate <NUM>. The at least one fourth ratchet tooth <NUM> is screwed on a surface of the third plate <NUM> facing the transmitting assembly, wherein the downside of the ring internal gear (not shown) is internal geared into the at least one fourth ratchet tooth <NUM>. In this example, the number of the fourth ratchet teeth <NUM> is two, but the present disclosure is not limited thereto.

In this example, a relative movement between the gear rack <NUM> and the third gear <NUM> can be performed by pulling out the gear rack <NUM> in a direction away from the cup structure (not shown) so as to rotate the third rotating assembly <NUM> and further transmit the power to the transmitting assembly by the at least one fourth ratchet tooth <NUM>. Moreover, a relative movement in a reverse direction between the gear rack <NUM> and the third gear <NUM> can be performed by inserting the gear rack <NUM> to the cup structure so as to rotate the third rotating assembly <NUM> and further transmit the power to the transmitting assembly by the at least one fourth ratchet tooth <NUM>.

Claim 1:
A cup structure (<NUM>), comprising:
a bottom (<NUM>) comprising:
a base (<NUM>), wherein a top surface of the base (<NUM>) is sunk inward and forms an accommodating space (<NUM>);
a driving assembly (<NUM>, <NUM>, <NUM>, <NUM>, <NUM>) disposed in the accommodating space (<NUM>);
a transmitting assembly (<NUM>) disposed in the accommodating space (<NUM>) and geared into the driving assembly (<NUM>, <NUM>, <NUM>, <NUM>, <NUM>); and
a cover (<NUM>) disposed on the transmitting assembly (<NUM>) and screwed on a top of the accommodating space (<NUM>), wherein the cover (<NUM>) comprises:
a protrusion (<NUM>) protruded along a direction away from the cover (<NUM>);
a water-blocking layer (<NUM>) disposed around a side surface of the protrusion (<NUM>); and
a mixer (<NUM>) having at least one mixing blade (<NUM>), wherein a length of a projection of the at least one mixing blade (<NUM>) vertically projected on the protrusion (<NUM>) is shorter than a radius of an inscribed circle of a top surface of the protrusion (<NUM>);
a body (<NUM>), wherein a bottom edge of the body (<NUM>) is detachably sleeved at an outer edge of the water-blocking layer (<NUM>); and
a top cover (<NUM>) covered on a top of the body (<NUM>);
wherein when a power is transmitted to the mixer (<NUM>) by the transmitting assembly (<NUM>) after the power is generated by the driving assembly (<NUM>, <NUM>, <NUM>, <NUM>, <NUM>), the at least one mixing blade (<NUM>) is rotated, characterized in that said mixer (<NUM>) is disposed on a top of the protrusion (<NUM>).