Food processing kettle

Abstract

The invention discloses a food processing kettle, and belongs to the technical field of food processing. The device mainly comprises a heating kettle, a lock cover, an off-fire air bag and a pumping unit, the lock cover is arranged at the upper end of the heating kettle, an inner container is arranged in the heating kettle in a liftable mode, a back shore structure is arranged on the inner container, a heating module is arranged at the bottom of the inner container, and a heat conduction gap is formed between the inner container and the heating module. A pump outlet of the pumping unit can be connected and communicated with an inner cavity of the fire leaving air bag, when the pump outlet of the pumping unit is connected and communicated with the inner cavity of the fire leaving air bag, the pumping unit can pump a cooling medium into the fire leaving air bag, and when the fire leaving air bag expands, the back shore structure is resisted, so that the inner container is extruded to descend; and when the inner cavity of the fire-away air bag is connected and communicated with the heat conduction gap, the fire-away air bag shrinks and lifts the inner container, and meanwhile, the cooling medium in the inner cavity of the fire-away air bag enters the heat conduction gap. The food processing kettle disclosed by the invention can simulate a manual stir-frying method away from fire.

Description

Technical Field

[0001] The present invention relates to the technical field of food processing, and particularly to a food processing kettle. Background Art

[0002] Some cooking methods of dishes require stir-frying away from the fire, that is, immediately removing the wok from the fire and using a spatula to stir and turn to quickly and evenly cool the dishes, while the existing food heating kettles can only increase the temperature of food by adjusting the power of the heating module, and due to the residual heat of the heating module not being able to dissipate quickly, the temperature of the dishes can only decrease slowly, so it is impossible to simulate the manual method of stir-frying away from the fire.

[0003] Therefore, it is necessary to provide a new type of food processing kettle. Summary of the Invention

[0004] Based on the above problems existing in the prior art, the purpose of the embodiment of the present invention is to provide a food processing kettle that can simulate the manual method of stir-frying away from the fire.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: a food processing kettle, including a heating kettle, a locking cover, a fire-off airbag and a pumping unit. The locking cover is arranged at the upper end of the heating kettle. An inner container is liftably arranged in the heating kettle. A top support structure for elastically lifting the inner container is arranged on the inner container. A heating module is arranged at the bottom of the inner container. A heat conduction gap is formed at an interval between the inner container and the heating module. The fire-off airbag is arranged on the locking cover and above the inner container. The pump outlet of the pumping unit can be connected and communicated with the inner cavity of the fire-off airbag. When the pump outlet of the pumping unit is connected and communicated with the inner cavity of the fire-off airbag, the pumping unit can pump a cooling medium into the fire-off airbag to cause the fire-off airbag to inflate and expand. When the fire-off airbag expands, it resists the top support structure to squeeze the inner container down. The inner cavity of the fire-off airbag can also be connected and communicated with the heat conduction gap. When the inner cavity of the fire-off airbag is connected and communicated with the heat conduction gap, the fire-off airbag contracts and the inner container is lifted by the top support structure. At the same time, the cooling medium in the inner cavity of the fire-off airbag enters the heat conduction gap.

[0006] Further, the food processing kettle further includes a switching valve. The switching valve has an interface one, an interface two and an interface three. The interface one is connected and communicated with the inner cavity of the fire-off airbag. The interface two is connected to the pump outlet of the pumping unit. The interface three is connected and communicated with the heat conduction gap. When the switching valve is switched to the first state, that is, the interface one is connected to the interface two. When the switching valve is switched to the second state, that is, the interface one is connected to the interface three.

[0007] Further, the food processing kettle further includes a rotating shaft rotatably fitted on the locking cover.

[0008] Further, the lower end of the rotating shaft is connected with a connecting rod through a telescopic structure. The bottom of the connecting rod contacts the inner tank. The pumping unit includes a rotating arm. When the rotating arm rotates along the first direction, the cooling medium can be discharged from the pump outlet. A driving disk is coaxially arranged on the connecting rod, and a transmission disk is coaxially arranged on the rotating arm. The transmission disk and the driving disk are arranged opposite to each other up and down. A one-way transmission structure is arranged between the transmission disk and the driving disk. When the driving disk moves upward with the connecting rod to drive the driving disk close to the transmission disk, and at the same time the driving disk rotates along the first direction with the connecting rod, the one-way transmission structure can lock the transmission disk and the driving disk. And when the driving disk and the connecting rod descend in place with the inner tank, and at the same time the fire-off airbag expands in place, the locking of the transmission disk and the driving disk by the one-way transmission structure is released. When the driving disk rotates along the second direction opposite to the first direction with the connecting rod, the locking of the transmission disk and the driving disk by the one-way transmission structure is released.

[0009] Further, the one-way transmission structure includes a ball and a dial. The upper end surface of the driving disk is provided with a rolling groove. The rolling groove extends along the circumferential direction of the driving disk, and the depth of the rolling groove increases along the first direction. The dial is used to apply an elastic force to the ball to drive the ball to move along the second direction in the rolling groove. And when the inner tank moves downward to the lowest position of the inner tank, the ball is disengaged from the transmission disk. When the driving disk rotates along the second direction, the one-way transmission structure fails.

[0010] Further, limiting protrusions are respectively arranged on both sides of the driving disk and located on both sides of the rolling groove. A guiding groove is arranged on the side wall of the limiting protrusion close to the rolling groove. The opposite side walls of the ball slide into the guiding groove. The top end of the limiting protrusion is inclined to form a slope, and the height between the slope and the end surface of the driving disk gradually decreases along the first direction.

[0011] Further, a swing arm is connected to the dial. A rotating part is rotatably matched with the driving disk. The swing arm is hinged to the rotating part. An elastic part is arranged between the swing arm and the rotating part. The elastic part applies a force to the swing arm to drive the end of the swing arm with the dial to be elastically pressed on the slope. There is an elastic force between the rotating part and the driving disk to drive the rotating part to rotate along the second direction.

[0012] Further, the top support structure includes an elastic pin. The elastic pin elastically extends upward along the vertical direction from the heating kettle. A flanging is arranged on the opening edge of the inner tank and extends radially. The elastic pin and the flanging are opposite to each other up and down.

[0013] Further, the pumping unit is a peristaltic structure. The pumping unit includes a pump body, a hose, a pressing wheel and a rotating arm. The pump body is installed on the lock cover. A U-shaped winding groove is arranged in the pump body. The hose is wound into the winding groove in a U shape. The two ends of the hose respectively form a pump inlet and a pump outlet. The rotating arm is rotatably matched with the lock cover. The pressing wheel is installed on the rotating arm. At least two pressing wheels are arranged on the rotating arm, and the two pressing wheels are arranged at intervals along the circumferential direction.

[0014] Furthermore, the heating kettle includes a housing, a chassis and a heat insulation layer. The inner container can be received inside the housing. The chassis is disposed inside the housing and wraps around the outside of the inner container. A heating module is received and installed inside the chassis. The heating module is shaped to fit the outer wall of the inner container, and the heat insulation layer wraps the chassis.

[0015] Among the above technical solutions in the embodiments of the present invention, compared with the prior art, there is at least one of the following beneficial effects:

[0016] A food processing kettle provided by the present invention includes a heating kettle, a locking cover, a fire-off airbag and a pumping unit. The locking cover is disposed at the upper end of the heating kettle. An inner container is liftably disposed in the heating kettle. A top support structure for elastically lifting the inner container is provided on the inner container. A heating module is provided at the bottom of the inner container. A heat conduction gap is formed at an interval between the inner container and the heating module. When the inner container descends, the inner container approaches the heating module, and at the same time the heat conduction gap shrinks; when the inner container rises, the inner container moves away from the heating module, and at the same time the heat conduction gap expands. The fire-off airbag is disposed on the locking cover and above the inner container. The pump outlet of the pumping unit can be connected and communicated with the inner cavity of the fire-off airbag. When the pump outlet of the pumping unit is connected and communicated with the inner cavity of the fire-off airbag, the pumping unit can pump a cooling medium into the fire-off airbag to realize the inflation and expansion of the fire-off airbag. When the fire-off airbag expands, it resists the top support structure to squeeze the inner container down. The inner cavity of the fire-off airbag can also be connected and communicated with the heat conduction gap. When the inner cavity of the fire-off airbag is connected and communicated with the heat conduction gap, the fire-off airbag contracts and the inner container is lifted by the top support structure. As a result, the heat conduction gap expands and the heat conduction effect of the heating module is reduced. At the same time, the cooling medium in the inner cavity of the fire-off airbag enters the heat conduction gap, so that the cooling medium cools and lowers the temperature of the heat conduction gap, the inner container and the heating module. Thus, through the above technical solutions, the food processing kettle provided by the present invention can quickly cool and lower the temperature of the dishes, achieving the effect of simulating the manual fire-off stir-frying technique. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the drawings and embodiments.

[0018] Figure 1 It is a schematic three-dimensional structure diagram of the food processing kettle provided by the embodiment of the present invention.

[0019] Figure 2 It is a cross-sectional view of the food processing kettle provided by the embodiment of the present invention.

[0020] Figure 3 It is an exploded view of the food processing kettle provided by the embodiment of the present invention.

[0021] Figure 4 is Figure 2 an enlarged schematic view of area A in

[0022] Figure 5 For Figure 2 The enlarged schematic view of area B in

[0023] Figure 6 The three-dimensional structure schematic diagram of the pumping unit provided by the embodiment of the present invention.

[0024] Figure 7 The exploded view of the pumping unit provided by the embodiment of the present invention.

[0025] Figure 8 The structure schematic diagram of the driving disk and the one-way transmission structure provided by the embodiment of the present invention.

[0026] Figure 9 The three-dimensional structure schematic diagram of the driving disk provided by the embodiment of the present invention.

[0027] Figure 10 For Figure 8 The top view of

[0028] Figure 11 For Figure 10 The cross-sectional view in the E-E direction of

[0029] Figure 12 The schematic diagram of the switching valve in the first state provided by the embodiment of the present invention.

[0030] Figure 13 The schematic diagram of the switching valve in the second state provided by the embodiment of the present invention.

[0031] Wherein, each reference numeral in the figure: 1, heating kettle; 11, outer shell; 12, chassis; 13, heat insulation layer; 14, inner tank; 141, flanging; 15, control board; 2, lock cover; 3, rotating shaft; 31, connecting rod; 32, telescopic structure; 33, driving disk; 331, rolling groove; 332, limiting convex; 333, guiding groove; 334, slope; 4, off-fire airbag; 5, switching valve; 51, interface one; 52, interface two; 53, interface three; 6, pumping unit; 61, pump body; 611, pipe winding groove; 62, hose; 621, pump inlet; 622, pump outlet; 63, extrusion wheel; 64, swing arm; 7, one-way transmission structure; 71, ball; 72, paddle; 73, swing arm; 74, rotating part; 75, elastic part; 8, top support structure; 9, heat conduction gap; 10, joint. Detailed implementation manners

[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clear and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] It should be noted that when an element is referred to as "connected to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0034] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0036] Throughout the specification, reference to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the phrases "in one embodiment", "in some embodiments", or "in some of these embodiments" appearing throughout the specification do not all refer to the same embodiment. Moreover, in one or more embodiments, the specific features, structures, or characteristics may be combined in any suitable manner.

[0037] Please refer to Figures 1 to 13As shown in the figure, a food processing kettle provided by the present invention will now be described. The food processing kettle includes a heating kettle 1, a locking cover 2, a fire-off airbag 4, and a pumping unit 6. The locking cover 2 is arranged at the upper end of the heating kettle 1. An inner tank 14 is liftably arranged in the heating kettle 1. A top support structure 8 for elastically lifting the inner tank 14 is arranged on the inner tank 14. A heating module (not shown in the figure) is arranged at the bottom of the inner tank 14. A heat conduction gap 9 is formed at an interval between the inner tank 14 and the heating module. When the inner tank 14 descends, the inner tank 14 approaches the heating module, and at the same time, the heat conduction gap 9 shrinks; when the inner tank 14 rises, the inner tank 14 moves away from the heating module, and at the same time, the heat conduction gap 9 expands. The fire-off airbag 4 is arranged on the locking cover 2 and above the inner tank 14. The pump outlet 622 of the pumping unit 6 can be connected and communicated with the inner cavity of the fire-off airbag 4. When the pump outlet 622 of the pumping unit 6 is connected and communicated with the inner cavity of the fire-off airbag 4, the pumping unit 6 can pump a cooling medium into the fire-off airbag 4 to realize the inflation and expansion of the fire-off airbag 4. When the fire-off airbag 4 expands, it resists the top support structure 8 to squeeze the inner tank 14 to descend. The inner cavity of the fire-off airbag 4 can also be connected and communicated with the heat conduction gap 9. When the inner cavity of the fire-off airbag 4 is connected and communicated with the heat conduction gap 9, the fire-off airbag 4 contracts and the inner tank 14 is lifted by the top support structure 8, thereby expanding the heat conduction gap 9 and reducing the heat conduction effect of the heating module. At the same time, the cooling medium in the inner cavity of the fire-off airbag 4 enters the heat conduction gap 9, so that the cooling medium cools and lowers the temperature of the heat conduction gap 9, the inner tank 14, and the heating module. Therefore, through the above technical solutions, the food processing kettle provided by the present invention can quickly cool and lower the temperature of the dishes, achieving the effect of simulating the manual fire-off stir-frying method.

[0038] As Figure 12 and Figure 13 shown, in some of the embodiments, the food processing kettle provided by the embodiments of the present invention further includes a switching valve 5. The switching valve 5 has an interface one 51, an interface two 52, and an interface three 53. The interface one 51 is connected and communicated with the inner cavity of the fire-off airbag 4. The interface two 52 is communicated with the pump outlet 622 of the pumping unit 6. The interface three 53 is connected and communicated with the heat conduction gap 9. When the switching valve 5 is switched to Figure 12 the first state shown in the figure, that is, the interface one 51 is connected and communicated with the interface two 52, so that the pump outlet 622 of the pumping unit 6 can be connected and communicated with the inner cavity of the fire-off airbag 4; when the switching valve is switched to [[ID=]10] Figure 13 the second state shown in the figure, that is, the interface one 51 is connected and communicated with the interface three 53, so that the inner cavity of the fire-off airbag 4 can be connected and communicated with the heat conduction gap 9. Specifically, in this embodiment, the switching valve 5 is a two-position three-way solenoid valve.

[0039] As Figure 1 , Figure 2 and Figure 3As shown, in some of these embodiments, the food processing kettle provided by the embodiments of the present invention further includes a rotating shaft 3 rotatably fitted to the locking lid 2, and a stir-frying structure (not shown in the figure) is installed on the rotating shaft 3. Thus, the rotation of the rotating shaft 3 drives the stir-frying structure to stir-fry the dishes in the inner pot 14, so that the dishes are evenly mixed and evenly heated.

[0040] As Figure 5As shown, in some of these embodiments, the lower end of the rotating shaft 3 is connected to a connecting rod 31 through a telescopic structure 32. The bottom of the connecting rod 31 contacts the inner tank 14, so that the connecting rod 31 can perform a rotary motion following the rotating shaft 3. At the same time, the connecting rod 31 can also perform a linear lifting motion relative to the rotating shaft 3 following the inner tank 14. The pumping unit 6 includes a rotating arm 64. The rotating arm 64 rotating along the first direction can cause the cooling medium to be discharged from the pump outlet 622. A driving disk 33 is coaxially arranged on the connecting rod 31, and a transmission disk 65 is coaxially arranged on the rotating arm 64. The transmission disk 65 and the driving disk 33 are arranged opposite to each other vertically. A one-way transmission structure 7 is arranged between the transmission disk 65 and the driving disk 33. When the driving disk 33 moves upward with the connecting rod 31 to drive the driving disk 33 close to the transmission disk 65, and at the same time the driving disk 33 rotates along the first direction with the connecting rod 31, the one-way transmission structure 7 can lock the transmission disk 65 and the driving disk 33, so that the transmission disk 65 and the rotating arm 64 rotate along the first direction. And when the driving disk 33 and the connecting rod 31 descend in place with the inner tank 14, and at the same time the fire-off airbag 4 expands in place, the locking of the one-way transmission structure 7 on the transmission disk 65 and the driving disk 33 is released;When the drive disk 33 rotates along a second direction opposite to the first direction with the connecting rod 31, the one-way transmission structure 7 releases the locking between the transmission disk 65 and the drive disk 33, so that the transmission disk 65 and the swing arm 64 do not rotate along the second direction with the drive disk 33. Thus, through the above technical solution, when the pump outlet 622 of the pumping unit 6 is connected and communicated with the inner cavity of the fire-off airbag 4, and when the drive disk 33 rotates along the first direction with the connecting rod 31, the locking of the one-way transmission structure 7 causes the swing arm 64 to rotate along the first direction, and then the pumped cooling medium is discharged from the pump outlet 622 into the fire-off airbag 4, causing the fire-off airbag 4 to expand, causing the inner tank 14 to be squeezed downwards, the heat conduction gap 9 to shrink, and the heating module to be able to approach and quickly heat the inner tank 14 until the inner tank 14 descends in place. At the same time, when the fire-off airbag 4 expands in place, the locking of the one-way transmission structure 7 between the transmission disk 65 and the drive disk 33 is released, the transmission between the pumping unit 6 and the rotating shaft 3 is released, and the pumping unit 6 stops working. When the air pressure in the heat conduction gap 9 increases with the increase in temperature, resulting in a decrease in the pressure difference between the inner cavity of the fire-off airbag 4 and the heat conduction gap 9, the fire-off airbag 4 tends to contract, and then the inner tank 14 has an upward trend. When the inner tank 14 rises, the one-way transmission structure 7 resumes the locking between the transmission disk 65 and the drive disk 33, and the pumping unit 6 resumes working to continue pumping cooling medium into the fire-off airbag 4 to inflate the fire-off airbag 4, thereby increasing the pressure difference between the fire-off airbag 4 and the heat conduction gap 9 so that the fire-off airbag 4 maintains an inflated state and squeezes the inner tank 14 downwards. Therefore, the food processing kettle provided by the embodiment of the present invention can solve the problem that the inner tank 14 accidentally rises due to the decrease in the pressure difference between the inner cavity of the fire-off airbag 4 and the heat conduction gap 9 caused by the increase in the air pressure in the heat conduction gap 9 with the increase in temperature, resulting in the shrinkage of the fire-off airbag 4. In addition, when it is necessary to raise the inner tank 14 to perform stir-frying off the fire, the connection and communication between the inner cavity of the fire-off airbag 4 and the heat conduction gap 9 are switched, the fire-off airbag 4 contracts, and the inner tank 14 is lifted by the top support structure 8. At the same time, by controlling the rotating shaft 3 to rotate along the second direction, the locking of the one-way transmission structure 7 between the transmission disk 65 and the drive disk 33 can be maintained, avoiding the accidental operation of the pumping unit 6 from interfering with the lifting of the inner tank 14 at this time.;

[0041] Such as Figure 8 , Figure 9 , Figure 10 and Figure 11As shown, in some of these embodiments, the one-way drive structure 7 includes balls 71 and a paddle 72. The upper end surface of the drive disk 33 is provided with a rolling groove 331, that is, the rolling groove 331 is provided on the end surface of the drive disk 33 close to the transmission disk 65. The rolling groove 331 extends along the circumferential direction of the drive disk 33, and the depth of the rolling groove 331 increases along the first direction. The paddle 72 is used to apply an elastic force to the balls 71 to drive the balls 71 to move along the second direction in the rolling groove 331. Thus, under the drive of the paddle 72, the balls 71 will move circumferentially in the rolling groove 331 while having an upward component motion, so that the balls 71 gradually approach the transmission disk 65. When the balls 71 come into contact with the transmission disk 65, and at the same time when the drive disk 33 rotates along the first direction, the balls 71 will tend to roll close to the transmission disk 65 in the rolling groove 331, prompting the balls 71 to be pressed tightly against the transmission disk 65. The balls 71 and the transmission disk 65 are locked by pressing, so that the transmission disk 65 can rotate following the drive disk 33. And when the inner tank 14 moves downward to the lowest position of the inner tank 14, the balls 71 are disengaged from the transmission disk 65. At this time, since the balls 71 and the transmission disk 65 cannot be stressed, the transmission of the rotational force is lost, and the one-way drive structure 7 fails; or when the drive disk 33 rotates along the second direction, due to the pressing force between the balls 71 and the transmission disk 65, the balls 71 are driven to roll along the first direction in the rolling groove 331. Furthermore, the balls 71 will tend to move away from the transmission disk 65, and further, the balls 71 and the transmission disk 65 cannot achieve close contact, and no thrust to prompt the transmission disk 65 and the drive disk 33 to rotate in the same direction can be generated, and the one-way drive structure 7 fails. It can be understood that the locking by pressing between the balls 71 and the transmission disk 65 can rely on the frictional force of pressing between the balls 71 and the transmission disk 65; or a groove suitable for partial reception of the balls 71 is provided on the transmission disk 65, and when the balls 71 are received in the groove, a circumferential thrust is formed between the balls 71 and the transmission disk 65. Through the above design, on the one hand, when the rotation direction of the rotating shaft 3 is changed from the first direction to the second direction, even if the rotating arm 64 rotates in the previous first direction under the action of inertia, the one-way drive structure 7 is in a failure state, so that the rotation of the rotating shaft 3 is not hindered by the inertial rotation of the rotating arm 64; on the other hand, during the process of the drive disk 33 starting to rotate instantaneously along the first direction from a stationary state with the rotating shaft 3, since the force on the balls 71 and the transmission disk 65 is too large instantaneously, the drive disk 33 is prompted to descend to offset part of the impact force, so that the transmission disk 65 gradually speeds up and rotates, realizing slip protection and avoiding damage to the one-way drive structure 7 caused by the impact force at the moment of starting.

[0042] As Figure 8 , Figure 9 and Figure 10 shown, on both sides of the rolling groove 331 on the drive disk 33, limiting protrusions 332 are respectively provided. On the side wall of the limiting protrusion 332 close to the rolling groove 331, a guiding groove 333 is provided. As Figure 11As shown, the two opposite side walls of the ball 71 are also slid into the guide groove 333 to prevent the ball 71 from escaping the rolling groove 331. The top of the limiting protrusion 332 is inclined to form a slope 334. The height between the slope 334 and the end surface of the driving disk 33 gradually decreases along the first direction. Figure 11 As shown, a swing arm 73 is connected to the paddle 72, and a rotating portion 74 is rotatably matched on the driving disk 33. The swing arm 73 is hinged on the rotating portion 74. An elastic member 75 is provided between the swing arm 73 and the rotating portion 74. The elastic member 75 exerts force on the swing arm 73 to drive the end of the swing arm 73 with the paddle 72 to elastically press down on the slope 334. There is an elastic force between the rotating portion 74 and the driving disk 33 to drive the rotating portion 74 to rotate in the second direction, so that the paddle 72 pushes the ball bearing under the elastic rotation of the rotating portion 74. Ball 71 moves in the second direction within the rolling groove 331. Because the swing arm 73 constantly presses against the ramp 334, the paddle 72 can always remain behind the ball 71. This ensures that the paddle 72 pushes the ball 71 in a constant direction, allowing the ball 71 to roll smoothly along the rolling groove 331. Furthermore, the swing arm 73 always contacts the ramp 334, rather than sliding along the rolling groove 331. This protects the rolling groove 331 from wear and tear from other parts of the ball 71, thereby increasing the service life of the rolling groove 331. Furthermore, a stopper is provided on the side of the ball 71 facing away from the paddle 72 to limit the length of the ball 71's rolling path within the rolling groove 331 and prevent the ball 71 from escaping the groove 331.

[0043] It is understandable that in some other embodiments not shown in the figures, the one-way transmission structure 7 can also be a claw provided on the upper end surface of the driving disk 33, and a slot provided on the lower end surface of the transmission disk 65, the claw slidingly fits on the driving disk 33 in the vertical direction, and the claw is elastically pushed upward, and when the driving disk 33 rotates along the connecting rod 31 in the first direction, the claw and the slot engage to lock the transmission disk 65 and the driving disk 33, and when the driving disk 33 and the connecting rod 31 move down along the inner liner 14 to the lowest position of the inner liner 14, the claw disengages from the slot, and at this time the driving disk 33 rotates along the connecting rod 31 in the first direction, the claw disengages from the slot, that is, the lock between the transmission disk 65 and the driving disk 33 is released, or when the driving disk 33 rotates along the connecting rod 31 in the second direction, even if the claw and the slot are in contact, the claw and the slot are disengaged.

[0044] like Figure 2As shown, in some of these embodiments, the heating kettle 1 includes a housing 11, a chassis 12, and a heat insulation layer 13. The inner container 14 can be received inside the housing 11. The chassis 12 is disposed inside the housing 11 and wraps around the outer side of the inner container 14. A heating module is received and installed inside the chassis 12. The heating module is shaped to fit the outer wall of the inner container 14. The heat insulation layer 13 wraps around the chassis 12 to achieve the effect of heat preservation. Specifically, the heat insulation layer 13 is fixedly connected to the chassis 12 and is also fixedly connected to the housing 11.

[0045] In some of these embodiments, the locking lid 2 is detachably connected to the housing 1 of the heating kettle 1, enabling the locking lid 2 to be hermetically buckled on the top opening of the inner cavity of the heating kettle 1.

[0046] As Figure 4 shown, in some of these embodiments, the top support structure 8 includes elastic dowel pins. The elastic dowel pins elastically extend upward in the vertical direction from the housing 11 of the heating kettle 1. A flanging 141 is radially extended along the opening edge of the inner container 14. The elastic dowel pins and the flanging 141 are vertically aligned. Specifically, a plurality of elastic dowel pins are circumferentially spaced on the housing 11 of the heating kettle 1 to stably support the inner container 14. Under the support of the elastic force of the elastic dowel pins, the inner container 14 is lifted away from the heating module.

[0047] In some of these embodiments, the fire-off airbag 4 is in an annular structure adapted to the shape of the upper opening of the inner container 14. The fire-off airbag 4 and the flanging 141 of the inner container 14 are vertically aligned.

[0048] As Figure 5 shown, in some of these embodiments, the telescopic structure 32 includes a chute at the upper end of the connecting rod 31. The lower end of the rotating shaft 3 is slidably and non-rotatably engaged with the chute of the connecting rod 31. In this way, the connecting rod 31 can fall under the action of gravity and abut against the inner container 14 and move up and down with the inner container 14. More precisely, in this embodiment, a return spring is further provided between the connecting rod 31 and the rotating shaft 3. The return spring applies a downward elastic force to the connecting rod 31 to maintain the close contact between the connecting rod 31 and the inner container 14 and reduce the jitter noise of the connecting rod 31.

[0049] As Figure 6 shown, in some of these embodiments, the pumping unit 6 is a peristaltic structure. Specifically, the pumping unit 6 includes a pump body 61, a hose 62, a squeezing wheel 63, and the above-mentioned swing arm 64. As Figure 5 shown, the pump body 61 is installed on the locking lid 2. As Figure 7As shown, a U-shaped pipe winding groove 611 is provided in the pump body 61. The hose 62 is received in the pipe winding groove 611 in a U-shape. The two ends of the hose 62 respectively form a pump inlet 621 and a pump outlet 622. The swing arm 64 is rotationally engaged with the lock cover 2. The extrusion wheel 63 is installed on the swing arm 64. At least two extrusion wheels 63 are provided on the swing arm 64, and the two extrusion wheels 63 are arranged at intervals in the circumferential direction. Thus, during the rotation of the extrusion wheel 63 following the swing arm 64, a negative pressure is formed in the pump inlet 622 to suck in the cooling medium, and as the extrusion wheel 63 pushes, the cooling medium in the pump inlet 622 moves from the inside of the hose 62 to the pump outlet 622, realizing the pumping of the cooling medium. And the one-way transmission structure 7 transmits the torque of the rotating shaft 3 to drive the swing arm 64 to rotate, promoting a compact structure.

[0050] As Figure 1 shown, in some embodiments, a connector 10 is provided on the lock cover 2 for adding materials and adding oil and water during the cooking process.

[0051] As Figure 2 shown, in some embodiments, a control board 15 is further included. The control board 15 is installed in the housing 11 of the heating kettle 1, and electric control is realized through the control board 15.

[0052] In some embodiments, the cooling medium is air. Specifically, the pump inlet 621 is communicated with the external environment.

[0053] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A food processing kettle, characterized in that: It includes a heating kettle, a locking cover, a fire-off airbag and a pumping unit. The locking cover is arranged at the upper end of the heating kettle. An inner container is liftably arranged in the heating kettle. A top support structure for elastically lifting the inner container is arranged on the inner container. A heating module is arranged at the bottom of the inner container. A heat conduction gap is formed at an interval between the inner container and the heating module. The fire-off airbag is arranged on the locking cover and above the inner container. The pump outlet of the pumping unit can be connected and communicated with the inner cavity of the fire-off airbag. When the pump outlet of the pumping unit is connected and communicated with the inner cavity of the fire-off airbag, the pumping unit can pump a cooling medium into the fire-off airbag to realize the inflation and expansion of the fire-off airbag. When the fire-off airbag expands, it resists the top support structure to squeeze the inner container down. The inner cavity of the fire-off airbag can also be connected and communicated with the heat conduction gap. When the inner cavity of the fire-off airbag is connected and communicated with the heat conduction gap, the fire-off airbag contracts and the top support structure raises the inner container. At the same time, the cooling medium in the inner cavity of the fire-off airbag enters the heat conduction gap.

2. The food processing kettle according to claim 1, wherein: The food processing kettle further includes a switching valve. The switching valve has an interface one, an interface two and an interface three. The interface one is connected and communicated with the inner cavity of the fire-off airbag. The interface two is communicated with the pump outlet of the pumping unit. The interface three is connected and communicated with the heat conduction gap. When the switching valve is switched to the first state, that is, the interface one is communicated with the interface two. When the switching valve is switched to the second state, that is, the interface one is communicated with the interface three.

3. The food processing kettle according to claim 1, wherein: The food processing kettle further includes a rotating shaft rotatably fitted on the locking cover.

4. The food processing kettle according to claim 3, characterized in that: The lower end of the rotating shaft is connected with a connecting rod through a telescopic structure. The bottom of the connecting rod contacts the inner container. The pumping unit includes a rotating arm. When the rotating arm rotates along the first direction, the cooling medium can be discharged from the pump outlet. A driving disk is coaxially arranged on the connecting rod. A transmission disk is coaxially arranged on the rotating arm. The transmission disk and the driving disk are arranged opposite to each other up and down. A one-way transmission structure is arranged between the transmission disk and the driving disk. When the driving disk moves upward with the connecting rod to drive the driving disk close to the transmission disk, and at the same time the driving disk rotates along the first direction with the connecting rod, the one-way transmission structure can lock the transmission disk and the driving disk. When the driving disk and the connecting rod descend in place with the inner container, and at the same time the fire-off airbag expands in place, the locking of the one-way transmission structure to the transmission disk and the driving disk is released. When the driving disk rotates along the second direction opposite to the first direction with the connecting rod, the locking of the one-way transmission structure to the transmission disk and the driving disk is released.

5. The food processing kettle according to claim 4, characterized in that: The one-way transmission structure includes a ball and a dial. A rolling groove is arranged on the upper end surface of the driving disk. The rolling groove extends along the circumferential direction of the driving disk, and the depth of the rolling groove increases along the first direction. The dial is used to apply an elastic force to the ball to drive the ball to move along the second direction in the rolling groove. When the inner container moves downward to the lowest position of the inner container, the ball is disengaged from the transmission disk. When the driving disk rotates along the second direction, the one-way transmission structure fails.

6. The food processing kettle according to claim 5, wherein: Limit projections are respectively arranged on both sides of the rolling groove on the driving disk. A guiding groove is arranged on the side wall of the limit projection close to the rolling groove. The opposite side walls of the ball slide into the guiding groove. The top end of the limit projection is inclined to form a slope. The height between the slope and the end surface of the driving disk gradually decreases along the first direction.

7. The food processing kettle according to claim 6, wherein: A swing arm is connected to the paddle. A rotating part is rotatably fitted on the driving disc. The swing arm is hinged to the rotating part. An elastic member is arranged between the swing arm and the rotating part. The elastic member applies a force to the swing arm to elastically press the end of the swing arm with the paddle against the slope. There is an elastic force between the rotating part and the driving disc to drive the rotating part to rotate in the second direction.

8. The food processing kettle according to claim 1, characterized in that: The top support structure includes an elastic dowel pin. The elastic dowel pin elastically extends upward in the vertical direction from the heating kettle. A flange is radially extended along the opening edge of the inner liner. The elastic dowel pin and the flange are vertically opposite to each other.

9. The food processing kettle according to claim 4, characterized in that: The pumping unit is a peristaltic structure. The pumping unit includes a pump body, a hose, a squeezing wheel and a swing arm. The pump body is installed on the lock cover. A U-shaped pipe winding groove is provided in the pump body. The hose is received in the pipe winding groove in a U shape. The two ends of the hose respectively form a pump inlet and a pump outlet. The swing arm is rotatably fitted with the lock cover. The squeezing wheel is installed on the swing arm. At least two squeezing wheels are arranged on the swing arm. The two squeezing wheels are circumferentially spaced apart.

10. The food processing kettle according to claim 1, characterized in that: The heating kettle includes a housing, a chassis and a heat insulation layer. The inner liner can be received inside the housing. The chassis is arranged inside the housing and wraps around the outside of the inner liner. A heating module is received and installed inside the chassis. The heating module is shaped to fit the outer wall of the inner liner. The heat insulation layer wraps the chassis.

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