A pressure cooking appliance lid assembly and a pressure cooking appliance

Abstract

This utility model discloses a lid assembly for a pressure cooking appliance and the pressure cooking appliance itself. The lid assembly includes a lid body and an inner lid located below the lid body. A fork is provided on the upper side of the lid body, and the fork is fixedly connected to the inner lid. The fork is used to rotate the inner lid. The lid assembly also includes a cooling component and a water-cooling pipe. The cooling component has a cooling cavity inside, and the water-cooling pipe communicates with the cooling cavity. A limiting component is also provided on the upper side of the lid body, located above the water-cooling pipe to confine the water-cooling pipe below the fork. There is a clearance space between the fork and the upper surface of the lid body. By further providing a limiting component on the upper side of the lid body, the limiting component forms an upward limit on the water-cooling pipe, confining the water-cooling pipe within the clearance space below the fork. This places the fork and the water-cooling pipe at different heights, reducing the possibility of interference between the water-cooling pipe and the fork.

Description

Technical Field

[0001] This utility model belongs to the field of kitchen appliance technology, specifically relating to a pot lid assembly and a pressure cooking appliance. Background Technology

[0002] After pressure cooking, pressure cookers need to release pressure to allow the internal pressure to equalize with the external atmospheric pressure before opening the lid. Traditional pressure cookers typically release pressure through natural cooling or by venting. This method is not only slow, requiring users to wait a considerable amount of time before opening the lid, but it also often involves significant noise, resulting in a poor user experience.

[0003] In recent years, to improve the speed of pressure relief, some pressure cooking appliances have adopted water-cooling depressurization. This involves a water-cooling chamber in the lid; after pressure cooking, coolant is supplied to the chamber, allowing heat exchange between the chamber and the hot air inside the pot, rapidly reducing the pot's temperature and thus lowering the pressure. For water-cooled pressure cooking appliances, a water-cooling pipeline is often installed to connect the water-cooling chamber to the water tank, with at least a portion of the pipeline extending above the lid's liner.

[0004] For pressure cookers, to ensure safety, the lid must be locked to the pot body before pressure is applied. After cooking, the user must unlock the lid to open it. The lid typically locks and unlocks by rotating. Specifically, the lid consists of a liner and an inner lid. The liner has a fork mechanism; operating the fork rotates the inner lid relative to the liner, thus locking or unlocking it. In other words, the fork mechanism is a structure capable of movement relative to the liner. Since both the fork mechanism and the water-cooling piping are located above the liner, there is a possibility of interference with the water-cooling piping when the fork mechanism moves. If this interference occurs, the movement of the fork mechanism will be obstructed, resulting in a severe jamming sensation for the user and potentially preventing the lid from locking or unlocking properly. Furthermore, the pressure exerted by the fork mechanism on the water-cooling piping can affect the stability of the connection, causing the connection between the water-cooling piping and the water-cooling chamber to loosen, posing a risk of coolant leakage. Utility Model Content

[0005] This utility model provides a lid assembly for a pressure cooking appliance and a pressure cooking appliance to solve the problem that the fork on the lid is prone to interfering with the water cooling pipes during movement, resulting in poor movement of the fork, affecting the smoothness of opening and closing the lid, and causing a decrease in the stability of the water cooling pipe connection.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A pressure cooking appliance lid assembly includes a lid body and an inner lid located below the lid body. A fork is provided on the upper side of the lid body, one end of which is fixedly connected to the inner lid. The fork is used to rotate the inner lid. The lid assembly also includes a cooling component and a water cooling pipe. The cooling component has a cooling cavity inside, and the water cooling pipe communicates with the cooling cavity. A limiting component is also provided on the upper side of the lid body. The limiting component is located above the water cooling pipe to restrict the water cooling pipe below the fork.

[0008] In this invention, the shift fork is positioned on the upper side of the cover, providing clearance between the shift fork and the upper surface of the cover. A limiting member is further provided on the upper side of the cover, allowing the water-cooling pipe to pass underneath it. This limiting member then restricts the water-cooling pipe upwards, confining it within the clearance space below the shift fork and preventing excessive upward bulging. This arrangement places the shift fork and the water-cooling pipe at different heights, reducing the possibility of interference. The shift fork can rotate within its designated height, providing smoother operation and reducing any feeling of jamming. Simultaneously, the water-cooling pipe is not compressed by the shift fork, maintaining a stable and reliable connection with the cooling component. This reduces the risk of the water-cooling pipe bending or detaching from the cooling component due to compression by the shift fork, and lowers the probability of coolant leakage.

[0009] The limiting component and the cover are either separate structures or integrally formed structures. The limiting component and the cover form a pipe passage, with at least a portion of the limiting component located above the pipe passage, through which the water-cooling pipe passes.

[0010] In this design, the limiting component and the cover work together to form a pipe passage for the water-cooling pipe to pass through. The limiting component is at least partially located above the pipe passage, thereby limiting the water-cooling pipe upwards. At the same time, the inner wall of the pipe passage can also enclose the bottom of the water-cooling pipe and at least one other side, providing more directional limiting for the water-cooling pipe and confining it to a preset position. This not only improves the positional stability of the water-cooling pipe but also effectively prevents the water-cooling pipe from shaking, thereby further improving the connection stability between the water-cooling pipe and the cooling component.

[0011] The cover is provided with a mounting groove with a top opening. A limiting member is fixedly connected to the cover to close at least a portion of the top opening so that the limiting member and the mounting groove cooperate to form a pipe passage.

[0012] In this design, the limiting component and the cover are separate structures. The limiting component is then fixedly connected to the cover in a subsequent configuration. When the limiting component is not fixed to the cover, the top opening of the mounting groove is open. At this time, the installer can place the water-cooling pipe into the mounting groove through the top opening without experiencing significant pressure. This not only reduces installation difficulty but also prevents damage to the water-cooling pipe, extending its service life. After the water-cooling pipe is placed in the mounting groove, the limiting component is then fixed to the cover, closing at least a portion of the top opening and thus limiting the water-cooling pipe within the mounting groove, preventing it from detaching.

[0013] The water-cooling pipe consists of two sections connected by a one-way valve. The upper surface of the cover is provided with a support rib. The support rib cooperates with the limiting member to form a pipe passage. There are two support ribs, which are spaced apart along the extension direction of the water-cooling pipe so that a space for accommodating the one-way valve is formed between the support ribs.

[0014] In this design, a one-way valve connects two sections of water-cooling pipes, ensuring a single flow direction for the coolant within the pipes: the inlet pipe flows from the water tank to the cooling chamber, and the return pipe flows from the cooling chamber back to the water tank. This improves both coolant flow efficiency and cooling performance. An upward-protruding support rib on the upper surface of the cover, in conjunction with a limiting component, forms a pipe passage. The water-cooling pipes rest against the support ribs, creating a height gap between the pipes and the upper surface of the cover. This provides space for the one-way valve, preventing interference. Simultaneously, the one-way valve is located within the space between the two support ribs, allowing the ribs to support and limit the water-cooling pipes on both sides of the valve. This restricts the water-cooling pipes on both sides of the valve, ensuring a stable connection.

[0015] The cover is provided with a fixed seat, the shift fork has a rotating seat and a drive unit, the rotating seat is fixed to the top of the fixed seat, and the cooling component is confined to the fixed seat and extends downward to pass through the inner cover.

[0016] In this design, the cooling component is confined to the fixed base, and the rotating seat of the shift fork is also fixed to the fixed base, allowing both to share a single fixed base. The fixed base serves both to limit the cooling component and to fix the shift fork, achieving the integration of multiple functions and making one component multi-functional. This not only simplifies the structure of the lid assembly and saves costs, but also, for the lid of a pressure cooking appliance, which requires many functional components such as venting components, pressure relief components, and temperature measuring components, the shared fixed base for the cooling component and the shift fork can greatly save space in the lid, leaving room for other components.

[0017] The upper surface of the cover is provided with a downwardly recessed pipe groove, and at least a portion of the water-cooling pipe is located within the pipe groove.

[0018] In this design, at least a portion of the water-cooling pipes is located within the pipe-passing groove. The groove serves two purposes: firstly, it limits the movement of the water-cooling pipes, confining them within its surface to prevent swaying or swinging, and secondly, it restricts their orientation, ensuring they are arranged only along the groove's extension direction, resulting in a more uniform and orderly arrangement. Thirdly, because the groove is a downward-recessed structure, it lowers the position of the water-cooling pipes, further increasing the vertical distance between the pipes and the shift fork, thus reducing the probability of interference between them.

[0019] The pipe groove is provided with stop ribs on both sides, and the stop ribs extend into the pipe groove to form a pipe opening between the stop ribs. The width of the pipe opening is smaller than the width of the pipe groove.

[0020] In this design, the stop ribs on both sides extend towards the pipe passage groove, forming a pipe passage opening at the groove's opening. The opening is relatively narrow; therefore, when the water-cooled pipe is placed into the groove, it needs to squeeze the stop ribs to deform laterally, expanding the opening to allow the pipe to pass through. After the water-cooled pipe enters, the stop ribs return to their original position under elastic force, thus enclosing the pipe from the outside and limiting its movement within the groove. This prevents the pipe from slipping out of the opening and also prevents significant shaking, improving the pipe's stability.

[0021] The water-cooled pipe includes an inlet pipe and a return pipe. The inlet of the return pipe is connected to the cooling chamber, and the outlet is connected to the water tank. The return pipe has a bend section, which bends and extends to change the direction of the return pipe.

[0022] In existing technologies, the outlet pipe of a cooling system is typically a straight-through structure, with the coolant flowing directly from the water-cooling chamber to the water tank. Once inside the water-cooling chamber, the coolant undergoes turbulence due to the internal baffles, which lengthen its path and improve heat exchange. Therefore, the coolant is essentially in a turbulent state. This turbulent liquid flows out along the straight outlet pipe and continues to flow into the water tank, causing it to impact with the liquid already in the tank and generating significant noise. Furthermore, some coolant often remains in the water-cooling chamber. This residual liquid, when heated, produces hot steam, which travels directly through the straight return pipe to the water tank, further heating the existing coolant and reducing the cooling efficiency.

[0023] In this design, by incorporating a bend in the return water pipe, the pipe's extension direction is altered. The bend lengthens the coolant's flow path, and under centrifugal force, air bubbles in the coolant are released, appropriately reducing turbulence. This not only reduces noise generated by coolant flow within the return pipe but also decreases the kinetic energy of the coolant flowing into the water tank, thus minimizing noise from liquid collisions. Furthermore, when coolant remains in the cooling chamber, it evaporates and boils as the boiler heats up. Hot steam exits from the cooling chamber outlet into the return water pipe. The bend lengthens the steam's flow path, and the longer return water pipe also provides some cooling. During flow, the hot steam condenses, reducing its heating effect on the coolant in the water tank.

[0024] The upper surface of the cover is provided with a mating rib, which includes a first extension extending upward and a second extension extending laterally from the top of the first extension. The return water pipe is at least partially wrapped around the outside of the first extension to form a bent section, and the second extension is located above the bent section to limit the bent section.

[0025] In this design, the reinforcing rib assists in the bending and turning of the return water pipe and limits the bending section, keeping it in a bent state. Specifically, the bending section is wrapped around the vertically extending first extension, thus changing the extension direction of the bending section and making it extend in a spiral shape. The upper second extension can confine the bending section within the space below, preventing it from slipping or breaking free from the first extension.

[0026] This utility model also discloses a pressure cooking appliance, including a pot body and a pot lid assembly of the pressure cooking appliance; the pot lid assembly cooperates with the pot body to form a cooking cavity, and a cooling component extends into the cooking cavity; the fork component can control the rotation of the inner lid so that the pot lid assembly has a locked state that is locked with the pot body, and an unlocked state that is unlocked from the pot body.

[0027] The cooling component extends into the cooking cavity, allowing it to directly contact the hot air inside the cooking cavity for heat exchange. This results in higher heat exchange efficiency, thereby improving the efficiency of water-cooled pressure reduction and shortening the pressure reduction time. Attached Figure Description

[0028] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0029] Figure 1 This is an exploded view of the cover body according to one embodiment of the present invention;

[0030] Figure 2 This is a cross-sectional view of a pot lid assembly according to one embodiment of the present invention;

[0031] Figure 3 This is a cross-sectional view of the pot lid assembly according to one embodiment of the present invention from another perspective;

[0032] Figure 4 for Figure 3 A magnified view of area A in the middle;

[0033] Figure 5 This is a schematic diagram of the structure of the cover body according to one embodiment of the present invention;

[0034] Figure 6 This is a cross-sectional view of the cover body according to one embodiment of the present invention;

[0035] Figure 7 This is a cross-sectional view of the cover body according to another embodiment of the present invention;

[0036] Figure 8 This is a cross-sectional view of the pot lid assembly according to another embodiment of the present invention;

[0037] Figure 9 This is a cross-sectional view of the pot lid assembly according to another embodiment of the present utility model;

[0038] Figure 10 This is a cross-sectional view of the cover body according to another embodiment of the present invention;

[0039] Figure 11 for Figure 10 A magnified view of area B in the middle.

[0040] in:

[0041] 1. Cover; 11. Mounting groove; 111. Accommodation space; 112. Top opening; 12. Supporting rib; 121. Fixing hole; 13. Pipe passage groove; 14. Stopping rib; 141. Pipe opening; 15. Matching rib; 151. First extension; 152. Second extension; 153. First passage space; 154. Second passage space; 155. Reinforcing rib;

[0042] 2. Shift fork assembly; 21. Rotary seat; 22. Drive unit;

[0043] 3. Cooling components; 31. Cooling chamber;

[0044] 4. Fixed base;

[0045] 5. Water cooling pipe; 51. Inlet pipe; 511. Check valve; 52. Return pipe; 521. Bend section;

[0046] 6 water pumps;

[0047] 7. Limiting component; 71. Screw; 72. Washer;

[0048] 8. Inner cover. Detailed Implementation

[0049] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0050] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0051] Furthermore, it should be understood in the description of this utility model that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0052] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0053] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "aspect," or "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] like Figure 1 , Figure 2As shown, a pressure cooking appliance lid assembly includes a lid body 1 and an inner lid 8 located below the lid body 1. A fork 2 is provided on the upper side of the lid body 1, and the fork 2 is fixedly connected to the inner lid 8. The fork 2 is used to drive the inner lid 8 to rotate. The lid assembly also includes a cooling component 3 and a water cooling pipe 5. The cooling component 3 has a cooling cavity 31 inside, and the water cooling pipe 5 communicates with the cooling cavity 31. A limiting component 7 is also provided on the upper side of the lid body 1. The limiting component 7 is located above the water cooling pipe 5 to restrict the water cooling pipe 5 below the fork 2.

[0055] Understandably, the cover 1 has an opening, and the fork 2 is fixedly connected to the inner cover 8 through the opening to drive the inner cover 8 to rotate relative to the cover 1. Furthermore, the opening can be designed as an arc-shaped structure extending circumferentially along the cover 1 to limit and guide the movement of the fork 2, making the movement of the fork 2 more reliable.

[0056] In this invention, the fork 2 is positioned on the upper side of the cover 1, providing clearance between the fork 2 and the upper surface of the cover 1. Furthermore, a limiting member 7 is provided on the upper side of the cover 1, allowing the water-cooling pipe 5 to pass under the limiting member 7. This limits the upward movement of the water-cooling pipe 5, confining it within the clearance space below the fork 2 and preventing excessive upward bulging. This also places the fork 2 and the water-cooling pipe 5 at different heights, reducing the possibility of interference. The fork 2 can rotate within its designated height, providing a smoother operation and reducing any feeling of sticking. Simultaneously, the water-cooling pipe 5 is not compressed by the fork 2, maintaining a stable and reliable connection with the cooling component 3. This reduces the risk of the water-cooling pipe 5 bending or detaching from the cooling component 3 due to compression by the fork 2, and lowers the probability of coolant leakage.

[0057] Preferably, such as Figure 2 As shown, the limiting member 7 is located near the water-cooling component so that its limiting position on the water-cooling pipe 5 is closer to the connection position between the water-cooling pipe 5 and the cooling component 3, which helps to ensure the connection stability between the water-cooling pipe 5 and the cooling component 3.

[0058] In a preferred embodiment of this utility model, the limiting member 7 and the cover 1 are separate structures or the limiting member 7 and the cover 1 are integrally formed structures. The limiting member 7 and the cover 1 form a pipe passage, and at least a portion of the limiting member 7 is located above the pipe passage. The water cooling pipe 5 passes through the pipe passage.

[0059] The limiting member 7 and the cover 1 cooperate to form a pipe passage for the water-cooling pipe 5 to pass through. The limiting member 7 is at least partially located above the pipe passage, thereby limiting the water-cooling pipe 5 upward. At the same time, the inner wall of the pipe passage can also enclose the bottom of the water-cooling pipe 5 and at least one other side, forming a more directional limiting effect on the water-cooling pipe 5 and restricting the water-cooling pipe 5 to a preset position. This not only improves the positional stability of the water-cooling pipe 5, but also effectively prevents the water-cooling pipe 5 from shaking, thereby further improving its connection stability with the cooling component 3.

[0060] In one embodiment, the limiting member 7 and the cover 1 are integrally formed. Specifically, the limiting member 7 is a raised rib structure on the upper surface of the cover 1. For example, in a specific example, the limiting member 7 and the cover 1 form a C-shaped pipe passage, with the limiting member 7 located above the pipe passage to provide an upward limit for the water-cooling pipe 5. The pipe passage has a lateral opening, so the water-cooling pipe 5 can be laterally inserted into the pipe passage from one side of the limiting member 7.

[0061] In another embodiment, the limiting member 7 and the cover 1 are separate structures. Specifically, as shown... Figure 3 , Figure 4 As shown, the cover 1 is provided with a mounting groove 11, the mounting groove 11 has a top opening 112, and the limiting member 7 is fixedly connected to the cover 1 so as to close at least a portion of the top opening 112 so that the limiting member 7 and the mounting groove 11 cooperate to form a pipe passage.

[0062] The limiting member 7 and the cover 1 are separate structures. The limiting member 7 is fixedly connected to the cover 1 in a subsequent state. When the limiting member 7 is not fixed to the cover 1, the top opening 112 of the mounting groove 11 is open. At this time, the assembler can place the water-cooling pipe 5 into the mounting groove 11 through the top opening 112. The water-cooling pipe 5 will not be subjected to significant compressive force when passing through the top opening 112, thus reducing installation difficulty and preventing damage to the water-cooling pipe 5, thereby increasing its service life. After the water-cooling pipe 5 is placed in the mounting groove 11, the limiting member 7 is then fixed to the cover 1, so that the limiting member 7 closes at least a portion of the top opening 112, limiting the water-cooling pipe 5 within the mounting groove 11 and preventing the water-cooling pipe 5 from detaching from the mounting groove 11.

[0063] In one specific example of this embodiment, such as Figure 4 , Figure 6 As shown, the mounting groove 11 is provided with fixing holes 121 around it. The limiting member 7 includes a screw 71 and a washer 72 placed in the screw 71. After the water cooling pipe 5 is placed into the mounting groove 11, the limiting member 7 is fixed to the cover 1 by fastening the screw 71 to the fixing hole 121. After the screw 71 is fastened, the head of the screw 71 and the washer 72 are located at the top opening 112 of the mounting groove 11, which limits the water cooling pipe 5 in the mounting groove 11.

[0064] Of course, the limiting member 7 can also be other structures, as long as it can at least partially cover the top opening 112 above the mounting groove 11. In addition, the limiting member 7 can also be fixedly connected to the cover 1 in other ways, such as snap-fit ​​connection, etc., which are not limited here.

[0065] Preferably, there are at least two mounting slots 11, spaced apart along the extension direction of the water-cooling pipe 5. However, this embodiment does not limit the structure of each mounting slot 11; that is, the structures of the multiple mounting slots 11 can be the same or different. For example, in a specific example, such as... Figure 6 As shown, there are two mounting slots 11. One mounting slot 11 has vertically extending groove walls on both sides, forming a straight-edge structure. The limiting member 7, which is separate from the cover body 1, can be fixed to the cover body 1, so that the limiting member 7 blocks the top opening 112 of the mounting slot 11, thus limiting the water-cooling pipe 5. The groove walls on both sides of the other mounting slot 11 extend into the mounting slot 11, thereby forming an inverted structure above the mounting slot 11 to constitute the limiting member 7. In this case, it is not necessary to limit the water-cooling pipe 5 through other components.

[0066] Preferably, such as Figure 3 , Figure 4 As shown, the water cooling pipe 5 consists of two sections connected by a one-way valve 511. The upper surface of the cover 1 is provided with a support rib 12. The support rib 12 cooperates with the limiting member 7 to form a pipe passage. There are two support ribs 12, which are spaced apart along the extension direction of the water cooling pipe 5, so that a receiving space 111 for accommodating the one-way valve 511 is formed between the support ribs 12.

[0067] The one-way valve 511 connects the two sections of water-cooling pipe 5, which makes the flow direction of the coolant in the water-cooling pipe 5 singular. That is, the flow direction in the inlet pipe 51 is from the water tank to the cooling chamber 31, and the flow direction in the return pipe 52 is from the cooling chamber 31 to the water tank. This not only improves the flow efficiency of the coolant, but also improves the water cooling effect.

[0068] The upper surface of the cover 1 has an upwardly protruding support rib 12, which cooperates with the limiting member 7 to form a pipe passage. The water-cooling pipe 5 rests on the support rib 12, raising the water-cooling pipe 5 and creating a gap in the height direction between it and the upper surface of the cover 1. This provides space for the one-way valve 511 and prevents interference between the one-way valve 511 and the upper surface of the cover 1. At the same time, the one-way valve 511 is located in the receiving space 111 between the two support ribs 12, allowing the support ribs 12 to support and limit the water-cooling pipe 5 located on both sides of the one-way valve 511. This restricts the water-cooling pipe 5 at both ends before and after the one-way valve 511, thereby ensuring the stability of its connection with the one-way valve 511.

[0069] Preferably, such as Figure 1 , Figure 2 , Figure 8 As shown, the cover 1 is provided with a fixed seat 4, the fork member 2 has a rotating seat 21 and a driving part 22, the rotating seat 21 is fixed to the top of the fixed seat 4, and the cooling member 3 is limited to the fixed seat 4 and extends downward to pass through the inner cover 8.

[0070] The cooling component 3 is confined to the fixed seat 4. At the same time, the rotating seat 21 of the fork component 2 is also fixed to the fixed seat 4, so that the two share a fixed seat 4. The fixed seat 4 not only serves as the limiting function of the cooling component 3, but also serves as the fixing function of the fork component 2, realizing the integration of multiple functions and multi-purpose use. This not only simplifies the structure of the lid assembly and saves costs, but also, for the lid 1 of the pressure cooking appliance, it needs to be equipped with many functional components, such as exhaust components, pressure relief components, temperature measuring components, etc. The way in which the cooling component 3 and the fork component 2 share the fixed seat 4 can greatly save the space of the lid 1 and leave space for other components.

[0071] In this embodiment, the fixing position of the cooling component 3 is not limited. In one embodiment, the cooling component 3 is fixed to the cover 1, and the fixing seat 4 presses down on the cooling component 3 from above, sealing the internal cooling cavity 31 and limiting its position. In another embodiment, the cooling component 3 is fixed to the fixing seat 4, and then fixed to the cover 1 by the fixing seat 4.

[0072] Specifically, such as Figure 8 As shown, the fixing seat 4 is located on the upper side of the cover 1, and the cooling component 3 extends through the cover 1 and the inner cover 8 to the bottom of the inner cover 8.

[0073] Furthermore, such as Figure 1 , Figure 8 As shown, the fixing base 4 is located at the center of the inner cover 8. Therefore, the cooling component 3 is also located at the center of the inner cover 8. This ensures that when the inner cover 8 rotates, the cooling component 3 remains at the center of rotation of the inner cover 8, thus maintaining its relative position to the inner cover 8. This eliminates the need for a large opening on the inner cover 8 for the movement of the cooling component 3. Furthermore, since the cooling component 3 is located at the center of the inner cover 8, and the inner cover 8 and the pot body form a cooking cavity, the center of the inner cover 8 is also located on the center line of the cooking cavity. With the cooling component 3 positioned here, the hot air from various areas within the cooking cavity can surround and envelop the cooling component 3, increasing the heat exchange area between the cooling component 3 and the hot air, thereby improving the cooling effect.

[0074] Specifically, such as Figure 1 , Figure 9As shown, the fork 2 extends radially along the inner cover 8. Its rotating base 21 is fixed above the fixed base 4 and located at the center of the inner cover 8. The driving part 22 extends to the edge of the inner cover 8 and is fixed to the inner cover 8. This makes the rotation center of the fork 2 also the center of the inner cover 8. The lid assembly is provided with a handle corresponding to the rotating base 21. The user drives the fork 2 to rotate around the rotating base 21 by the handle, thereby driving the inner cover 8 to rotate.

[0075] As a preferred embodiment of this utility model, such as Figures 5 to 7 As shown, the upper surface of the cover 1 is provided with a downwardly recessed pipe groove 13, and at least a portion of the water cooling pipe 5 is located within the pipe groove 13.

[0076] At least a portion of the water-cooling pipe 5 is located within the pipe groove 13. The pipe groove 13 serves two purposes: firstly, it limits the water-cooling pipe 5, confining it within the groove to prevent it from shaking or swaying; secondly, it restricts the pipe's orientation, ensuring it can only be arranged along the extension direction of the groove 13, resulting in a more uniform and orderly arrangement. Thirdly, because the groove 13 is a downwardly recessed structure, it lowers the position of the water-cooling pipe 5, further increasing the vertical distance between the water-cooling pipe 5 and the shift fork 2, thus reducing the probability of interference between them.

[0077] Preferably, the through-tube groove 13 extends along the length of the cover 1 so that the water-cooling pipe 5 extends from the rear end of the cover 1 to the middle region of the cover 1 and connects with the cooling component 3.

[0078] Furthermore, such as Figures 5 to 7 As shown, the pipe groove 13 is provided with stop ribs 14 on both sides. The stop ribs 14 extend toward the inside of the pipe groove 13 to form a pipe opening 141 between the stop ribs 14. The width of the pipe opening 141 is smaller than the width of the pipe groove 13.

[0079] The stop ribs 14 on both sides extend towards the pipe groove 13, forming a pipe opening 141 at the opening of the pipe groove 13. The width of the pipe opening 141 is relatively small. Therefore, when the water-cooling pipe 5 is placed into the pipe groove 13, the water-cooling pipe 5 needs to squeeze the stop ribs 14 to deform to both sides, causing the pipe opening 141 to expand and allow the water-cooling pipe 5 to pass through. After the water-cooling pipe 5 enters, the stop ribs 14 return to their original position under the action of elasticity, thereby forming a surround around the water-cooling pipe 5 from the outside, limiting the water-cooling pipe 5 in the pipe groove 13, preventing it from coming out of the pipe opening 141, and preventing the water-cooling pipe 5 from shaking significantly, thus improving the stability of the water-cooling pipe 5.

[0080] It should be noted that this utility model does not limit the number of water-cooling pipes 5. In one embodiment, there is one water-cooling pipe 5, that is, the water inlet and outlet of the cooling chamber 31 share a single pipe to simplify the structure. In another embodiment, there are two water-cooling pipes 5, one of which is an inlet pipe 51 for the coolant to flow into the cooling chamber 31, and the other is a return pipe 52 for the coolant to flow out of the cooling chamber 31. When there are two or more water-cooling pipes 5, the limiting member 7, the mounting groove 11, the pipe passage groove 13, and other structures in the above schemes can be provided for each pipe.

[0081] Preferably, such as Figure 9 As shown, the water-cooled pipe 5 includes an inlet pipe 51 and a return pipe 52. The inlet of the return pipe 52 is connected to the cooling chamber 31, and the outlet is connected to the water tank. The return pipe 52 has a bend section 521, which bends and extends to change the extension direction of the return pipe 52.

[0082] In existing technologies, the outlet pipe of the cooling structure is usually a straight-through structure, where the coolant flows directly from the water-cooling cavity to the water tank. Once inside the water-cooling cavity, the coolant undergoes turbulence due to the internal baffles, which lengthen its path and improve heat exchange. Therefore, the coolant is essentially in a turbulent state. This turbulent liquid flows out along the straight outlet pipe and remains turbulent upon entering the water tank, causing it to impact with the liquid inside and generating significant noise. Furthermore, some coolant often remains in the water-cooling cavity. This residual liquid, when heated, produces hot steam, which travels directly along the straight return pipe 52 to the water tank, further heating the existing coolant and reducing the cooling efficiency.

[0083] In this embodiment, by providing a bent section 521 in the return water pipe 52, the extension direction of the return water pipe 52 is changed. Under the action of the bent section 521, the flow path of the coolant is lengthened. At the same time, under the action of a certain centrifugal force, air bubbles in the coolant will be released, and the turbulence of the coolant will be appropriately reduced. This not only reduces the noise generated by the coolant flowing in the return water pipe 52, but also reduces the kinetic energy of the coolant flowing to the water tank, thereby reducing the noise generated when the liquid collides. In addition, when there is coolant remaining in the cooling chamber 31, as the heating in the pot proceeds, the remaining coolant will evaporate and boil. At this time, hot steam will be discharged from the outlet of the cooling chamber 31 into the return water pipe 52. Under the action of the bent section 521, the flow path of the hot steam becomes longer. The longer return water pipe 52 also has a certain cooling effect. During the flow process, the hot steam will condense, which can reduce the heating of the coolant in the water tank by the hot steam.

[0084] Preferably, such as Figure 9As shown, the return water pipe 52 connects to the cooling component 3 from one side. This portion of the return water pipe 52 extends along the width of the cover 1. After bending at the bend section 521, the extension direction of the return water pipe 52 changes to the length direction of the cover 1, extending to the rear end of the cover 1. Preferably, the return water pipe 52 not only changes direction in the horizontal plane, but also undergoes displacement in the height direction after bending at the bend section 521, causing a portion of the return water pipe 52 to rise or fall during the bending process.

[0085] This embodiment does not limit the formation method of the bent section 521. In one embodiment, the return water pipe 52 can be made of a material with good plasticity, so that the return water pipe 52 can be directly bent and shaped into an ideal shape. In another embodiment, the return water pipe 52 is constrained to be shaped into an ideal shape by other components. Specifically, such as Figure 5 , Figure 9 , Figure 10 , Figure 11 As shown, the upper surface of the cover 1 is provided with a mating rib 15. The mating rib 15 includes a first extension 151 extending upward and a second extension 152 extending laterally from the top of the first extension 151. The return water pipe 52 is at least partially wrapped around the outside of the first extension 151 to form a bent section 521. The second extension 152 is located above the bent section 521 to limit the bent section 521.

[0086] The rib 15 assists the return water pipe 52 in bending and turning, and also limits the bending section 521, keeping it in a bent state. Specifically, the rib 15 has a T-shaped structure, and the bending section 521 is wrapped around the vertically extending first extension 151, thereby changing the extension direction of the bending section 521 and extending it in a spiral shape. The upper second extension 152 can restrict the bending section 521 within the space below, preventing it from slipping or breaking free from the first extension 151.

[0087] Specifically, such as Figure 11 As shown, a first passage space 153 is formed between one side of the first extension 151 and the upper second extension 152, and a second passage space 154 is formed between the other side of the first extension 151 and the upper second extension 152. During the process of the return water pipe 52 extending from the cooling component 3 to the water tank, it first passes through the first passage space 153, then bypasses the first extension 151, and then passes through the second passage space 154.

[0088] Furthermore, such as Figure 9 , Figure 11As shown, the distance between the first passage space 153 and the cooling component 3 is greater than the distance between the second passage space 154 and the cooling component 3, so that the first passage space 153 is farther away from the cooling component 3, and the second passage space 154 is closer to the cooling component 3. The water-cooling pipe 5 first passes through the first passage space 153 from the cooling component 3, and then through the second passage space 154 to form a bend 521. This bend 521 is not only bent, but also spiral-shaped. This results in a greater centrifugal force when the coolant flows within the bend 521, causing bubbles to precipitate and improving noise reduction. At the same time, the spiral extension further lengthens the flow path, which helps to cool the coolant.

[0089] Preferably, such as Figure 11 As shown, the first extension 151 is provided with a reinforcing rib 155, which connects the first extension 151 to the cover 1 to improve the structural strength of the rib 15.

[0090] Preferably, such as Figure 8 , Figure 9 As shown, a water pump 6 is installed at the rear end of the lid 1 (the end furthest from the user in the radial direction during use; also, for models where the lid assembly and pot body meet, it is the hinge end). The water cooling assembly also includes a water tank, which can be installed on the lid assembly or on the pot body. One end of the inlet pipe 51 connects the water tank and the water pump 6, and the other end connects the water pump 6 to the cooling component 3, so that the water pump 6 pumps the coolant in the water tank to the cooling chamber 31. The return pipe 52 connects the cooling component 3 to the water tank, so that the coolant flows back into the water tank.

[0091] This utility model also discloses a pressure cooking appliance, including a pot body and a pot lid assembly of the pressure cooking appliance; the pot lid assembly cooperates with the pot body to form a cooking cavity, and a cooling component 3 extends into the cooking cavity; the fork component 2 can control the inner lid 8 to rotate so that the pot lid assembly has a locked state that is locked with the pot body, and an unlocked state that is unlocked from the pot body.

[0092] Specifically, the inner lid 8 has lid teeth on its edge, and the pot body has pot teeth. By rotating the inner lid 8, the lid teeth and pot teeth can be aligned and locked vertically, or misaligned vertically to unlock. Furthermore, a removable cover can be provided below the inner lid 8 to facilitate removal by the user for cleaning.

[0093] The cooling component 3 extends into the cooking cavity, allowing it to directly contact the hot air inside the cooking cavity for heat exchange. This results in higher heat exchange efficiency, thereby improving the efficiency of water-cooled pressure reduction and shortening the pressure reduction time.

[0094] In other embodiments, the cooling element 3 may not extend into the cooking cavity. For example, it may be located on the upper side of the inner cover 8, where the inner cover 8 is cooled first, and then the inner cover 8 is brought into contact with the hot air in the cooking cavity to reduce its temperature and pressure. Alternatively, the cooling element 3 may form a cooling cavity 31 independently or in conjunction with the inner cover 8; this is not limited here.

[0095] For any parts not mentioned in this utility model, existing technologies can be used or referenced.

[0096] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0097] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A lid assembly for a pressure cooking appliance, comprising a lid body and an inner lid disposed below the lid body, wherein a fork is provided on the upper side of the lid body, the fork being fixedly connected to the inner lid, and the fork being used to rotate the inner lid; characterized in that, The pot lid assembly also includes a cooling component and a water-cooling pipe. The cooling component has a cooling cavity inside, and the water-cooling pipe is connected to the cooling cavity. A limiting component is also provided on the upper side of the lid body. The limiting component is located above the water-cooling pipe to restrict the water-cooling pipe below the fork component.

2. The lid assembly of the pressure cooking appliance according to claim 1, characterized in that, The limiting member and the cover are either separate structures or integrally formed structures. The limiting member and the cover form a pipe passage, and at least a portion of the limiting member is located above the pipe passage. The water-cooling pipe passes through the pipe passage.

3. The lid assembly of the pressure cooking appliance according to claim 2, characterized in that, The cover is provided with a mounting groove, the mounting groove having a top opening, and the limiting member is fixedly connected to the cover to close at least a portion of the top opening so that the limiting member cooperates with the mounting groove to form the pipe passage.

4. The lid assembly of the pressure cooking appliance according to claim 2, characterized in that, The water-cooling pipe consists of two sections connected by a one-way valve. The upper surface of the cover is provided with a support rib. The support rib cooperates with the limiting member to form the pipe passage. There are two support ribs, which are spaced apart along the extension direction of the water-cooling pipe so that a receiving space for accommodating the one-way valve is formed between the support ribs.

5. The lid assembly of the pressure cooking appliance according to claim 1, characterized in that, The cover is provided with a fixed seat, the fork has a rotating seat and a driving part, the rotating seat is fixed to the top of the fixed seat, and the cooling element is limited to the fixed seat and extends downward to pass through the inner cover.

6. The lid assembly of the pressure cooking appliance according to claim 1, characterized in that, The upper surface of the cover is provided with a downwardly recessed pipe groove, and at least a portion of the water-cooling pipe is located within the pipe groove.

7. The lid assembly of the pressure cooking appliance according to claim 6, characterized in that, The pipe passage is provided with stop ribs on both sides, and the stop ribs extend toward the inside of the pipe passage to form a pipe passage opening between the stop ribs. The width of the pipe passage opening is smaller than the width of the pipe passage.

8. The lid assembly of the pressure cooking appliance according to claim 1, characterized in that, The water-cooling pipe includes an inlet pipe and a return pipe. The inlet of the return pipe is connected to the cooling chamber, and the outlet is connected to the water tank. The return pipe has a bent section, which bends and extends to change the direction of extension of the return pipe.

9. The lid assembly of the pressure cooking appliance according to claim 8, characterized in that, The upper surface of the cover is provided with a mating rib, the mating rib including a first extension extending upward and a second extension extending laterally from the top of the first extension. The return water pipe is at least partially wrapped around the outside of the first extension to form the bent section, and the second extension is located above the bent section to limit the bent section.

10. A pressure cooking appliance, comprising a pot body, characterized in that, It also includes a lid assembly of the pressure cooking appliance according to any one of claims 1-9; the lid assembly cooperates with the pot body to form a cooking cavity, and the cooling component extends into the cooking cavity; The fork can control the rotation of the inner lid so that the lid assembly has a locked state that is engaged with the pot body, and an unlocked state that is unengaged from the pot body.

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