A pot cover assembly and a pressure cooking appliance

Abstract

The utility model discloses a kind of pot cover assembly and pressure cooking utensil, pot cover assembly includes cover, water cooling device and the communication pipe being communicated with water cooling device, the top surface of cover is protruded with main reinforcing wall, main reinforcing wall extends from the rear end of cover to front end, main reinforcing wall is provided with through hole, communication pipe passes through through hole and is communicated with water cooling device. Main reinforcing wall realizes the integration of the structural reinforcing effect of cover and the effect of water cooling pipeline limiting guide, one multi-purpose, simplify the structure of cover, saves manufacturing cost. The mouth of through hole forms around along the circumferential direction of communication pipe, and the circumferential full-direction limiting of communication pipe is played, when cover rotates or upside-down, communication pipe and cover surface are more attached, and the limiting effect of communication pipe is improved.

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] Traditional pressure cookers, such as electric pressure cookers, typically release pressure by venting after cooking. This method is not only inefficient and time-consuming, but also generates significant noise, resulting in a poor user experience. Therefore, some existing pressure cookers use water cooling to release pressure, rapidly reducing the internal temperature and achieving quick pressure reduction.

[0003] Pressure cooking appliances employing water cooling have a cooling chamber in the lid, along with water-cooling pipes inside the lid. Coolant is supplied to the cooling chamber through these pipes to achieve water-cooling and pressure reduction. The water-cooling pipes are typically located on the upper side of the lid's inner lining, which includes pipe adapters. The water-cooling pipes extend from other parts of the pot body or lid to the upper lining, where the adapters connect and redirect the pipes to the cooling chamber. However, placing these adapters on the lining increases the water flow path, leading to a higher load on the water pump, which is detrimental to its long-term operation. Furthermore, the adapters encroach on the space above the lining, increasing the overall height of the appliance, wasting space, and increasing costs.

[0004] Chinese patent CN208192816U discloses a rapidly cooling cooking appliance, including a pot body and a lid. The lid has a cooling device, which includes a cooling component and a water pipe connected to the cooling component. The lid includes an inner liner, and the top of the inner liner has a channel for the water pipe, which is installed in the channel and guided by the channel. In this solution, by setting a groove on the upper surface of the inner liner to accommodate the water cooling pipe, the height of the water cooling pipe protruding from the surface of the inner liner is reduced to a certain extent, saving internal space of the lid. However, since the lid of a pressure cooking appliance often has many functional components on the inner liner, such as an exhaust valve assembly, an operating handle assembly, etc., adding a channel for the water pipe to the inner liner will inevitably lead to a tight layout of the various components on the inner liner. Moreover, the setting of the channel for the water pipe will affect the design of the original reinforcing rib structure of the inner liner, resulting in increased structural design and manufacturing difficulty of the inner liner, and decreased structural strength. In addition, when the pot lid is rotated or flipped open and closed, it is difficult to ensure that the water cooling pipes fit effectively through the pipe groove, resulting in poor pipe positioning. Utility Model Content

[0005] This utility model provides a pot lid assembly and a pressure cooking appliance to solve the problems that the arrangement of water cooling pipes occupies a large space above the inner liner, wasting the internal space of the pot lid, and that the design of the pipe structure increases the difficulty of designing and manufacturing the inner liner and provides poor constraint on the water cooling pipes.

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

[0007] A pot lid assembly includes a liner, a water cooling device, and a connecting pipe connected to the water cooling device. The top surface of the liner is provided with a main reinforcing wall that extends from the rear end to the front end of the liner. The main reinforcing wall has a through hole, through which the connecting pipe passes and connects to the water cooling device.

[0008] In this invention, the main reinforcing wall serves as a reinforcing rib on the upper surface of the liner, extending from the rear end to the front end. Simultaneously, the main reinforcing wall has a through hole through which a connecting pipe passes, allowing the main reinforcing wall to guide and limit the water-cooling pipeline. This integrates the structural reinforcement function of the liner and the guiding and limiting function of the water-cooling pipeline without affecting the structural strength of the liner. It is a multi-functional design, eliminating the need for additional designs of adapters, pipe grooves, etc., simplifying the liner's structure. Furthermore, it does not require altering the original structure of the liner or the layout of its components; only the main reinforcing wall needs to be machined with holes, thus saving manufacturing costs.

[0009] Furthermore, the through-hole limits the direction of the connecting tube, preventing it from protruding excessively from the upper surface of the liner. This allows the connecting tube to extend as close as possible to the upper surface of the liner, saving space in the height direction of the lid assembly and contributing to its slimmer and smaller design. The through-hole also surrounds the connecting tube circumferentially, providing omnidirectional circumferential restraint. When the liner rotates or flips, the restraining section is limited by the through-hole, ensuring a closer fit between the connecting tube and the liner surface and preventing significant warping, thus improving the restraint effect on the connecting tube.

[0010] The top surface of the liner has an upwardly raised section in the middle, and a recessed section is provided at the rear end of the raised section. The raised section is higher than the recessed section. The main reinforcing wall includes a first reinforcing section located in the recessed section and a second reinforcing section located in the raised section. A hole is opened in the first reinforcing section.

[0011] In this design, the main reinforcing wall extends from the recessed portion at the rear end of the liner to the raised portion. Since the recessed portion is lower than the raised portion, the height of the first reinforcing section of the main reinforcing wall is higher than the height of the second reinforcing section. Therefore, setting the through hole in the first reinforcing section has little impact on the structural strength of the main reinforcing wall, and the main reinforcing wall can still maintain a high structural strength, thereby providing a better structural reinforcement effect for the liner.

[0012] The settling platform and the main reinforcing wall enclose the installation space, and the pot lid assembly also includes a water pump, which is located within the installation space.

[0013] In this design, the main reinforcing wall and the recessed platform form an installation space for the water pump, providing positioning for the pump and further optimizing the structural layout of the components on the liner. The recessed platform allows the water pump to be installed lower than the liner surface, ensuring that after installation, it does not protrude excessively from the upper surface of the liner and is accommodated within the installation space as much as possible. This further saves space in the height of the lid assembly, reduces the overall thickness of the lid assembly, and achieves a thinner and lighter design.

[0014] The main reinforcing wall includes a first main wall and a second main wall, which are arranged in parallel. The through hole includes a first through hole opened in the first main wall and a second through hole opened in the second main wall. The connecting pipe includes an inlet pipe passing through the first through hole and a return pipe passing through the second through hole.

[0015] In this design, the connecting pipe includes an inlet pipe and a return pipe connected to the water-cooling device. Coolant enters the water-cooling device through the inlet pipe, undergoes heat exchange, and then flows out through the return pipe back to the water tank or storage device, achieving coolant circulation. This allows the inlet and return water to flow through independent pipes, preventing interference and improving efficiency. Furthermore, the inlet pipe passes through a first through-hole on the first main wall, and the return pipe passes through a second through-hole on the second main wall, enabling separate installation of the inlet and return pipes. This facilitates connection to the water tank and pump while reducing the risk of interference or entanglement between the two pipes, resulting in a more organized and orderly layout of the connecting pipe and optimizing the structural layout of the liner.

[0016] Both the first and second main walls have shaft mounting holes, and the liner is rotatably connected to the pot body via the shaft.

[0017] In this design, the first and second main walls not only serve to strengthen the structure of the liner and limit the position of the connecting pipe, but also act as connecting arms for rotating connection with the pot body. This further simplifies the structure of the liner, makes the layout of each component more compact and prevents interference between them, and also reduces the difficulty of connecting the pot lid assembly to the pot body, thus improving assembly efficiency.

[0018] The lid assembly also includes a water pump mounted on the liner, the water pump being located at the rear end of the liner, the liner having a first pair of interfaces, the water pump having a second pair of interfaces facing through the hole, and a connecting pipe extending from the second pair of interfaces to the first pair of interfaces by bending at the through hole.

[0019] In this design, the water pump is located at the rear end of the liner, the first pair of interfaces are located at the front of the water pump, and the water pump's connection port is located at the end of the water pump. Therefore, the connecting pipe needs to bend and extend to connect the two. Because the edge of the through hole exerts a significant limiting force on the limiting section, when the limiting section bends, it maintains an ideal posture under the action of the limiting force, meaning it still fits well against the surface of the liner and does not warp relative to the liner surface. Therefore, the cooperation between the through hole and the limiting section not only allows the limiting section to bend but also maintains good limiting of the limiting section, making the extension of the connecting pipe more regular. Simultaneously, the second pair of interfaces faces the through hole, making the path between them shorter. In other words, the through hole can limit the connecting pipe at a position closer to the water pump, thereby improving the limiting effect on the connecting pipe.

[0020] The second pair of interfaces is located at a lower height than the first pair of interfaces, and is positioned between the first and second pairs of interfaces in the height direction via a hole.

[0021] In this design, since the second pair of interfaces of the water pump is lower than the first pair of interfaces, the connecting pipe needs to be displaced in the height direction to connect the two. The through-hole, positioned between the two in the height direction, provides support for the connecting pipe as it passes through, bringing it closer to either the first or second pair of interfaces in the height direction, thus facilitating connection. Simultaneously, the support provided by the edge of the through-hole to the limiting section prevents the connecting pipe from sagging under gravity, reducing stress at the connection point and ensuring connection stability.

[0022] The main reinforcing wall is provided with a wire passage groove, which extends to the edge of the main reinforcing wall to form a wire passage opening for the wire to enter.

[0023] In this design, the wires used for electrical connections also extend through the wire groove of the main reinforcing wall, so that the main reinforcing wall also serves to guide and limit the wires, giving the main reinforcing wall more functions, further simplifying the structure of the liner, and allowing the water pump to be installed in the vicinity of the main reinforcing wall. By routing the wires through the main reinforcing wall, the connection between the wires and the water pump becomes simpler and more convenient, the routing path is shorter, and the wire arrangement can be more regular and orderly.

[0024] The main reinforcing wall includes a main body and a matching cantilever. The main body and the matching cantilever cooperate to form a cable passage groove. The matching cantilever has a connecting end and a free end. The connecting end is connected to the main body, and the free end cooperates with the main body to form a cable passage opening.

[0025] In this design, the cable tray is formed by a cantilever arm and a main body. The cantilever arm is a cantilever structure with one end fixed and the other free, allowing it to elastically deform under stress and thus change the size of the cable opening. This makes wire installation simpler and more convenient. During assembly or maintenance, the cable opening can be enlarged by deforming the cantilever arm, allowing wires to be placed into or removed from the cable tray. This reduces the resistance generated by the cable opening and the tray walls pressing on the wire, making wire insertion and removal smoother. After the wire is assembled, the cantilever arm returns to its original position, restoring pressure on the wire in the cable tray and firmly pressing the wire inside, preventing it from coming out.

[0026] This utility model also discloses a pressure cooking appliance, including a pot body and the aforementioned pot lid assembly. The pot body or pot lid is provided with a water tank. One end of a connecting pipe is connected to a water cooling device, and the other end is connected to the water tank, so that the water tank supplies coolant to the water cooling device through the connecting pipe. Attached Figure Description

[0027] 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:

[0028] Figure 1 This is a schematic diagram of the structure of the liner according to one embodiment of the present invention;

[0029] Figure 2 for Figure 1 A magnified view of area A in the middle;

[0030] Figure 3 This is a cross-sectional view of a pot lid assembly according to one embodiment of the present invention;

[0031] Figure 4 This is a partial cross-sectional view of a pot lid assembly according to one embodiment of the present invention;

[0032] Figure 5 This is an exploded view of the pot lid assembly according to one embodiment of the present invention.

[0033] in:

[0034] 1. Liner; 11. Main Reinforcing Wall; 111. First Main Wall; 112. Second Main Wall; 113. Main Body; 114. Matching Cantilever; 115. Connecting End; 116. Free End; 117. First Reinforcing Section; 118. Second Reinforcing Section; 12. Through Hole; 121. First Through Hole; 122. Second Through Hole; 13. Recessed Part; 14. Installation Space; 15. Rotary Shaft Mounting Hole; 16. First Pair Interface; 17. Third Pair Interface; 18. Cable Groove; 181. Cable Opening; 19. Raised Part; 191. Recessed Platform;

[0035] 2. Water pump; 21. Second pair of interfaces; 22. Pump inlet; 23. Pump pipe;

[0036] 3 connecting pipes; 31 inlet pipe; 32 return pipe;

[0037] 4. Water tank; 41. Water outlet. Detailed Implementation

[0038] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] like Figure 1 , Figure 2 As shown, a pot lid assembly includes a liner 1, a water cooling device, and a connecting pipe 3 connected to the water cooling device. The top surface of the liner 1 is provided with a main reinforcing wall 11, which extends from the rear end to the front end of the liner 1. The main reinforcing wall 11 has a through hole 12, through which the connecting pipe 3 passes and connects to the water cooling device.

[0044] It is understandable that when a user uses a pressure cooker, the end closer to the user is the front end of the pressure cooker and lid assembly, and the end furthest from the user (the end opposite to the front end in the radial direction) is the rear end.

[0045] Preferably, such as Figure 1 As shown, the main reinforcing wall 11 is vertically arranged so that it is perpendicular to the top surface of the liner, therefore the axis through the hole 12 is horizontal. Figure 1 As shown, the top surface of the liner 1 is also provided with multiple reinforcing ribs in an alternating manner, wherein the thickness of the main reinforcing wall 11 is greater than the thickness of the reinforcing ribs.

[0046] In this invention, the main reinforcing wall 11 serves as a reinforcing rib on the upper surface of the liner 1, extending from the rear end to the front end of the liner 1. Simultaneously, the main reinforcing wall 11 has a through hole 12 through which the connecting pipe 3 passes, enabling the main reinforcing wall 11 to guide and limit the water-cooling pipeline. This integrates the structural reinforcement function of the liner 1 and the function of limiting and guiding the water-cooling pipeline without affecting the structural strength of the liner 1. It is a multi-functional design, eliminating the need for additional designs of adapters, pipe grooves, etc., simplifying the structure of the liner 1. Furthermore, it does not require altering the original structure of the liner 1 or the layout of its components; only the main reinforcing wall 11 needs to be machined with holes, thus saving manufacturing costs.

[0047] Furthermore, the limiting effect of the hole 12 on the connecting pipe 3 fixes its orientation, preventing it from excessively protruding from the upper surface of the liner 1. This allows the connecting pipe 3 to extend as close as possible to the upper surface of the liner 1, saving space in the height direction of the lid assembly and contributing to its thinness and miniaturization. Moreover, the circumferential surround of the connecting pipe 3 by the edge of the hole 12 provides omnidirectional limiting of the limiting section. When the liner 1 rotates or flips, the limiting section is restrained by the hole 12, ensuring a closer fit between the connecting pipe 3 and the surface of the liner 1, preventing large-scale warping and thus improving the limiting effect on the connecting pipe 3.

[0048] It should be noted that this utility model does not limit the structure of the water cooling device. In one embodiment, the pot lid assembly further includes an inner cover located below the liner 1, and the water cooling device includes a water cooling cavity disposed in the inner cover. During the water cooling process, coolant is supplied to the water cooling cavity to cool and depressurize the pot. In another embodiment, the water cooling device includes a water cooling component disposed in the pot lid assembly. The water cooling component extends into the pot to directly contact and cool the air inside the pot, and the water cooling component has a water cooling cavity inside. The water cooling component can be disposed in the liner 1, extending through the inner cover into the pot, or it can be disposed in the inner cover; this is not limited here.

[0049] Preferably, such as Figure 1 As shown, the top surface of the cover 1 has an upwardly raised portion 19 in the middle, and a recessed portion 191 is provided on the outer periphery of the raised portion 19. The raised portion 19 is higher than the recessed portion 191. The main reinforcing wall 11 includes a first reinforcing section 117 located in the recessed portion 191 and a second reinforcing section 118 located in the raised portion 19. The hole 12 is opened in the first reinforcing section 117.

[0050] Specifically, such as Figure 1 As shown, the upper edge of the main reinforcing wall 11 is basically flush. The main reinforcing wall 11 extends from the recessed portion 191 at the rear end of the liner 1 to the raised portion 19. Since the recessed portion 191 is lower than the raised portion 19, the height of the first reinforcing section 117 of the main reinforcing wall 11 is higher than the height of the second reinforcing section 118. Therefore, setting the through hole 12 in the first reinforcing section 117 has little impact on the structural strength of the main reinforcing wall 11. The main reinforcing wall 11 can still maintain a high structural strength, thereby providing a better structural reinforcement effect for the liner 1.

[0051] Preferably, such as Figure 1 As shown, the main reinforcing wall 11 extends forward from the recessed portion 191 located at the rear end of the liner to the raised portion 19. Further, as... Figure 1 As shown, the main reinforcing wall 11 extends forward to the front end of the raised portion 19.

[0052] As a preferred embodiment of this utility model, such as Figure 1 , Figure 3 , Figure 4 , Figure 5 As shown, the main reinforcing wall 11 includes a first main wall 111 and a second main wall 112, which are arranged in parallel. The through hole 12 includes a first through hole 121 opened in the first main wall 111 and a second through hole 122 opened in the second main wall 112. The connecting pipe 3 includes an inlet pipe 31 passing through the first through hole 121 and a return pipe 32 passing through the second through hole 122.

[0053] The connecting pipe 3 includes an inlet pipe 31 and a return pipe 32 connected to the water cooling device. Coolant enters the water cooling device through the inlet pipe 31, undergoes heat exchange, and then flows out through the return pipe 32 back to the water tank 4 or the water storage device, thus achieving coolant circulation. This allows the inlet and return water to pass through independent pipes, preventing interference between the two water paths and improving the efficiency of inlet and return water. Simultaneously, the inlet pipe 31 passes through the first through hole 121 on the first main wall 111, and the return pipe 32 passes through the second through hole 122 on the second main wall 112. This allows the inlet pipe 31 and return pipe 32 to be installed separately, facilitating connection to the water tank 4 and the water pump 2 while reducing the risk of interference or entanglement between the two pipes. This makes the layout of the connecting pipe 3 more regular and orderly, optimizing the structural layout of the cover 1.

[0054] In another implementation, the inlet and outlet water can also share the same pipe to reduce the number of connecting pipes 3 and save costs.

[0055] Preferably, such as Figure 1 , Figure 2 As shown, the first main wall 111 and the second main wall 112 form a connecting arm at the rear end of the liner 1, and the lid assembly is rotatably connected to the pot body through the connecting arm. Specifically, as shown... Figure 1 , Figure 2 As shown, both the first main wall 111 and the second main wall 112 are provided with pivot mounting holes 15, and the cover 1 is rotatably connected to the pot body through the pivot.

[0056] The first main wall 111 and the second main wall 112 not only serve to strengthen the structure of the liner 1 and limit the position of the connecting pipe 3, but also act as connecting arms for rotating connection with the pot body. This further simplifies the structure of the liner 1, makes the layout of each component more compact and prevents interference between them, and also reduces the difficulty of connecting the pot lid assembly to the pot body, thus improving assembly efficiency.

[0057] Of course, the lid assembly can also be a separate structure from the pot body, so that the lid assembly can be removed from the pot body to fully open the pot opening; this is not a limitation.

[0058] In a preferred embodiment, such as Figure 1 , Figure 3 , Figure 4 As shown, the settling platform 191, the first main wall 111, and the second main wall 112 together form an installation space 14. The pot lid assembly also includes a water pump 2, which is located in the installation space 14 and is connected to the water inlet pipe 31 or the water return pipe 32.

[0059] An installation space 14 is formed between the first main wall 111 and the second main wall 112 for installing the water pump 2, which serves to position the water pump 2 for installation. This further optimizes the structural layout of the components on the cover 1. The water pump 2 is installed in the installation space 14, with the first through hole 121 and the second through hole 122 located on both sides of the water pump 2, which facilitates the arrangement of the inlet pipe 31 and the return pipe 32 and their connection with the water pump 2, improving assembly convenience. Furthermore, both the water pump 2 and the water cooling device are located on the pot cover assembly, resulting in a closer distance between them. The water pump 2 can use less power to pump the coolant, and the length of the pipes connecting the water pump 2 and the water cooling device is also greatly shortened, thus saving costs and simplifying the water connection structure.

[0060] Furthermore, the lid assembly is rotatably connected to the pot body via the first main wall 111 and the second main wall 112 at the rear end of the liner 1. Simultaneously, the water pump 2 is also located at the rear end of the liner 1, bringing it closer to the rotation center of the lid assembly. The shorter lever arm between the water pump 2 and the rotation center of the lid assembly shifts the structural center of gravity of the lid assembly further back, closer to the rotation center. This reduces the torque requirement for damping structures such as torsion springs, making them less prone to breakage or damage, thus extending their service life and saving costs. Moreover, the lid assembly moves more smoothly during the opening and closing process, reducing lid wobbling. Additionally, because the center of gravity of the lid assembly is closer to the rotation center, it requires less effort from the user when opening and closing the lid.

[0061] Furthermore, such as Figure 1 As shown, the top surface of the cover 1 is provided with a recessed part 13, which is located in the installation space 14, and the water pump 2 is installed in the recessed part 13.

[0062] The recessed part 13 is designed so that the installation position of the water pump 2 is recessed relative to the surface of the liner 1. Therefore, after the water pump 2 is installed, it will not protrude excessively from the upper surface of the liner 1, but can be accommodated in the installation space 14 as much as possible. This further saves space in the height of the pot lid assembly, reduces the overall thickness of the pot lid assembly, and achieves a thinner and lighter design.

[0063] The recessed platform 191 can form a sunken section 13, or a downwardly recessed area can be provided on the recessed platform 191 to form a sunken section 13, so that the installation position of the water pump 2 is further lowered.

[0064] Specifically, such as Figure 3 , Figure 4 As shown, the axis of the water pump 2 is arranged horizontally, and its axis is perpendicular to the first main wall 111 and the second main wall 112.

[0065] As a preferred embodiment of this utility model, such as Figure 1 , Figure 3 , Figure 4 As shown, the pot lid assembly also includes a water pump 2 installed on the liner 1. The water pump 2 is located at the rear end of the liner 1. The liner 1 is provided with a first pair of interfaces 16. The water pump 2 has a second pair of interfaces 21. The first pair of interfaces 16 is located on the front side of the water pump 2. The second pair of interfaces 21 is arranged facing the through hole 12. The connecting pipe 3 bends and extends in the area at the through hole 12 to extend from the second pair of interfaces 21 to the first pair of interfaces 16.

[0066] The water pump 2 is located at the rear end of the cover 1, and the first pair of interfaces 16 are located at the front of the water pump 2. The connection port of the water pump 2 is located at the end along the axial direction of the water pump 2. Therefore, the connecting pipe 3 needs to bend and extend to connect the two. Because the edge of the through hole 12 exerts a large limiting force on the connecting pipe 3, when the connecting pipe 3 bends, it will maintain an ideal posture under the action of the limiting force, that is, it will still fit well against the surface of the cover 1, and will not warp relative to the surface of the cover 1. Therefore, through the cooperation of the through hole 12 and the connecting pipe 3, not only can the connecting pipe 3 be bent, but it can also maintain good limiting of the connecting pipe 3, making the extension of the connecting pipe 3 more regular. At the same time, the second pair of interfaces 21 face the through hole 12, making the path between them shorter. That is to say, the through hole 12 can limit the connecting pipe 3 at a position closer to the water pump 2, thereby improving the limiting effect of the connecting pipe 3.

[0067] Specifically, such as Figure 4 , Figure 5 As shown, in one embodiment, the connecting pipe 3 includes a water inlet pipe 31. The portion of the water inlet pipe 31 between the second pair of ports 21 of the water pump 2 and the first main wall 111 extends perpendicularly to the first main wall 111, bends after passing through the first through hole 121, and extends to the first pair of ports 16 in a direction parallel to the first main wall 111.

[0068] It should be noted that the first pair of interfaces 16 can be used to connect with a water-cooling device, so that the water pump 2 can pump coolant into the water-cooling device through the first pair of interfaces 16. The first pair of interfaces 16 can also be used to connect with a water tank 4, so that the water pump 2 can extract coolant from the water tank 4 through the first pair of interfaces 16.

[0069] Preferably, such as Figure 1 , Figure 3 , Figure 4 As shown, the water pump 2 has a second pair of interfaces 21, the height of which the second pair of interfaces 21 is lower than the height of the first pair of interfaces 16, and is located between the first pair of interfaces 16 and the second pair of interfaces 21 in the height direction through the hole 12.

[0070] Because the second pair of ports 21 of the water pump 2 is lower than the first pair of ports 16, the connecting pipe 3 needs to be displaced in the height direction to connect the two. The through hole 12, located between the two in the height direction, provides support for the connecting pipe 3 as it passes through, bringing it closer in the height direction to either the first pair of ports 16 or the second pair of ports 21, thus facilitating connection. Simultaneously, the support provided by the edge of the through hole 12 prevents the connecting pipe 3 from sagging under gravity, reducing the stress at the connection point and ensuring connection stability.

[0071] In a preferred embodiment, such as Figure 1 , Figure 2 As shown, the main reinforcing wall 11 is provided with a wire passage groove 18, which extends to the edge of the main reinforcing wall 11 to form a wire passage opening 181 for the wire to enter.

[0072] The wires used for electrical connection also extend through the wire groove 18 of the main reinforcing wall 11, so that the main reinforcing wall 11 also serves to guide and limit the wires, giving the main reinforcing wall 11 more functions, further simplifying the structure of the cover 1, and allowing the water pump 2 to be installed in the vicinity of the main reinforcing wall 11. By routing the wires through the main reinforcing wall 11, the connection between the wires and the water pump 2 becomes simpler and more convenient, the routing path is shorter, and the wire arrangement can be more regular and orderly.

[0073] Furthermore, such as Figure 2 As shown, the main reinforcing wall 11 includes a main body 113 and a cooperating cantilever 114. The main body 113 and the cooperating cantilever 114 cooperate to form a wire passage groove 18. The cooperating cantilever 114 has a connecting end 115 and a free end 116. The connecting end 115 is connected to the main body 113, and the free end 116 cooperates with the main body 113 to form a wire passage opening 181.

[0074] The wire guide 18 is formed by the cooperation of a cantilever arm 114 and a main body 113. The cantilever arm 114 is a cantilever structure with one end fixed and the other end free, which allows it to elastically deform under force, thereby changing the size of the wire guide opening 181. This makes the installation of wires simpler and more convenient. During assembly or maintenance, the wire guide opening 181 can be enlarged by deforming the cantilever arm 114 to place or remove the wire into or from the wire guide 18. This reduces the resistance generated by the wire guide opening 181 and the groove wall of the wire guide 18 pressing on the wire, making it easier to insert and remove the wire. After the wire is assembled, the cantilever arm 114 returns to its original position, restoring the compression on the wire in the wire guide 18, firmly pressing the wire in the wire guide 18 and preventing it from coming out.

[0075] Specifically, such as Figure 1 , Figure 2As shown, the main reinforcing wall 11 includes a first main wall 111 and a second main wall 112 arranged in parallel, wherein at least one of them is provided with a wire groove 18.

[0076] This utility model also discloses a pressure cooking appliance, including a pot body and the aforementioned pot lid assembly. The pot body or pot lid is provided with a water tank 4. One end of the connecting pipe 3 is connected to a water cooling device, and the other end is connected to the water tank 4, so that the water tank 4 supplies coolant to the water cooling device through the connecting pipe 3.

[0077] This invention does not limit the location of the water tank 4. In one embodiment, the water tank 4 is located on the pot lid assembly to shorten the pipe length between the water tank 4 and the water cooling device, thereby improving the flow efficiency of the coolant. In another embodiment, the water tank 4 is located on the pot body, and the connecting pipe 3 extends from the pot body to the pot lid assembly, thereby connecting the water tank 4 and the water cooling device.

[0078] In one specific embodiment, such as Figure 3 , Figure 4 , Figure 5 As shown, the water tank 4 is installed on the pot lid assembly. The liner 1 is provided with a first pair of interfaces 16 and a third pair of interfaces 17. The first pair of interfaces 16 is used to connect to the water outlet 41 of the water tank 4, and the third pair of interfaces 17 is used to connect to the water return outlet of the water tank 4. The connecting pipe 3 includes an inlet pipe 31 and a return pipe 32. The main reinforcing wall 11 includes a first main wall 111 and a second main wall 112 arranged in parallel. The first main wall 111 has a first through hole 121, and the second main wall 112 has a second through hole 122. A water pump 2 is arranged between the two. The water pump 2 has a second pair of interfaces 21 and a pump outlet 22. After the water tank 4 is installed on the pot lid assembly, its outlet 41 is connected to the first pair of interfaces 16. The inlet pipe 31 connects the first pair of interfaces 16 and the second pair of interfaces 21 and passes through the first through hole 121. Then, the pump water pipe 23 connects the pump water port 22 and the water cooling device. The return water pipe 32 connects the water cooling device to the third pair of interfaces 17 and passes through the second through hole 122. Then, the coolant flows back to the water tank 4 through the return water port through the third pair of interfaces 17, thus completing the water circuit connection.

[0079] For any parts not mentioned in this utility model, existing technologies can be used or referenced.

[0080] 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.

[0081] 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 pot lid assembly, comprising a liner, a water cooling device, and a connecting pipe communicating with the water cooling device, characterized in that, The top surface of the liner is provided with a main reinforcing wall that extends from the rear end to the front end of the liner. The main reinforcing wall has a through hole, through which the connecting pipe passes and communicates with the water cooling device.

2. The pot lid assembly according to claim 1, characterized in that, The top surface of the liner has an upwardly raised portion in the middle, and a recessed portion is provided at the rear end of the raised portion. The raised portion is higher than the recessed portion. The main reinforcing wall includes a first reinforcing section located in the recessed portion and a second reinforcing section located in the raised portion. The through hole is opened in the first reinforcing section.

3. The pot lid assembly according to claim 2, characterized in that, The settling platform and the main reinforcing wall enclose an installation space, and the pot lid assembly also includes a water pump, which is disposed within the installation space.

4. The pot lid assembly according to claim 1, characterized in that, The main reinforcing wall includes a first main wall and a second main wall, which are arranged in parallel. The through hole includes a first through hole in the first main wall and a second through hole in the second main wall. The connecting pipe includes an inlet pipe passing through the first through hole and a return pipe passing through the second through hole.

5. The pot lid assembly according to claim 4, characterized in that, Both the first main wall and the second main wall are provided with pivot mounting holes, and the liner is rotatably connected to the pot body through the pivot.

6. The pot lid assembly according to claim 1, characterized in that, The pot lid assembly also includes a water pump mounted on the liner, the water pump being located at the rear end of the liner, the liner having a first pair of interfaces, the water pump having a second pair of interfaces, the second pair of interfaces being disposed toward the through hole, and the connecting pipe extending from the through hole to the first pair of interfaces.

7. The pot lid assembly according to claim 6, characterized in that, The second pair of interfaces is located at a lower height than the first pair of interfaces, and the through hole is located between the first pair of interfaces and the second pair of interfaces in the height direction.

8. The pot lid assembly according to claim 1, characterized in that, The main reinforcing wall is provided with a wire passage groove, which extends to the edge of the main reinforcing wall to form a wire passage opening for the wire to enter.

9. The pot lid assembly according to claim 8, characterized in that, The main reinforcing wall includes a main body and a matching cantilever. The main body and the matching cantilever cooperate to form the wire passage groove. The matching cantilever has a connecting end and a free end. The connecting end is connected to the main body, and the free end cooperates with the main body to form the wire passage opening.

10. A pressure cooking appliance, comprising a pot body, characterized in that, It also includes the pot lid assembly according to any one of claims 1-9, wherein the pot body or the pot lid is provided with a water tank, one end of the connecting pipe is connected to the water cooling device, and the other end is connected to the water tank, so that the water tank supplies coolant to the water cooling device through the connecting pipe.

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