Exhaust-free pressure cooking utensil

Abstract

The utility model discloses an exhaust-free pressure cooking utensil which comprises a pot body and a pot cover covering the pot body, the pot cover is provided with a cooling cavity, the pressure cooking utensil is further provided with a water cooling assembly, the pot cover is provided with a connecting end and an opening and closing end, and the connecting end is rotationally connected with the pot body so that the opening and closing end can turn over around the connecting position to open or cover the pot body. The water cooling assembly comprises a water tank and a water pump arranged on the pot cover, and the distance between the water pump and the opening-closing end is larger than that between the water pump and the connecting end. The water pump is closer to the rotating center of the pot cover, the force arm of the water pump and the rotating center of the pot cover is short, the structural gravity center of the pot cover moves backwards, the requirement for torsion of the torsion spring is small, meanwhile, stress borne by the torsion spring is smaller, the torsion spring is not prone to breakage or damage, the service life of the torsion spring is prolonged, and cost is saved. And the acting force of the torsional spring on the pot cover is more stable, the pot cover moves more stably in the overturning and opening process, and shaking of the pot cover is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of kitchen appliances, and in particular relates to an exhaust-free pressure cooking appliance. Background Art

[0002] After pressure cooking, pressure cookers need to release the pressure to equalize the pressure inside the pot with the outside atmosphere before the lid can be opened safely. Traditional pressure cookers release pressure through venting, which is not only slow but also noisy. The venting process can also cause liquid in the pot to spray out, contaminating the lid and affecting the user experience.

[0003] Some pressure cooking appliances also use water cooling to relieve pressure. Compared to exhaust pressure relief, water-cooling pressure relief is faster and produces less noise during the pressure relief process, so it is increasingly being used in pressure cooking appliances. The water-cooling pressure relief assembly typically includes a water tank and a water pump. In the prior art, the water pump is typically mounted on the pot body, and the corresponding cooling chamber structure is mounted on the pot lid. When water cooling is required to reduce the pressure, the water pump is turned on to transport the cooling water in the water tank to the cooling chamber above for water cooling and pressure reduction. The cooling water then flows back to the water tank, thereby circulating the cooling water. However, because the water pump and the cooling chamber are relatively far apart, the water pump requires a large driving power, which increases costs. In addition, the pipeline for transporting cooling water is long, further increasing costs. At the same time, the maintenance process is relatively complex and the maintenance cost is high.

[0004] Simply relocating the water pump to the lid would reduce the length of the piping, but for models where the lid is pivotally connected to the pot body, the lid opens via a torsion spring. The addition of a water pump would inevitably increase the weight of the lid, requiring the torsion spring to exert greater torque to open it. This would also place greater stress on the torsion spring itself, increasing the risk of breakage. Furthermore, the placement of the water pump would alter the lid's original center of gravity. If the center of gravity is farther from the lid connection, the lid would move faster during opening, causing the lid to wobble due to inertia once fully opened, potentially causing the pot body to tip over. Utility Model Content

[0005] The utility model provides an exhaust-free pressure cooking appliance to solve the problems of the existing water-cooling component, such as the long distance between the cooling chamber and the water pump, the long pipeline, which leads to increased costs, and the arrangement of the water pump in the pot cover, which causes the center of gravity of the pot cover to change, the increased force on the torsion spring, which is easy to be damaged, and the unstable opening of the lid.

[0006] The technical solution adopted by this utility model is:

[0007] A vent-free pressure cooking appliance comprises a pot body and a pot lid covering the pot body, the pot lid being provided with a cooling chamber. The pressure cooking appliance is further provided with a water cooling assembly, the pot lid having a connecting end and an opening and closing end, the connecting end being rotatably connected to the pot body so that the opening and closing end can be flipped around the connection to open or close the pot body, the water cooling assembly comprising a water tank and a water pump arranged on the pot lid, the distance between the water pump and the opening and closing end being greater than the distance between the water pump and the connecting end.

[0008] The exhaust-free pressure cooking device of the present invention also has the following additional technical features:

[0009] The pot cover includes a surface cover, a lining cover arranged below the surface cover, and an inner cover arranged on the lower side of the lining cover. The inner cover cooperates with the pot body to form a cooking cavity. The corresponding connecting end of the lining cover has a sunken avoidance portion so that an installation space for accommodating a water pump is formed between the avoidance portion and the surface cover.

[0010] The connecting end is convexly provided with a connecting arm for rotationally connecting to the pot body. The connecting arms are arranged at intervals along the circumference of the lining cover, and the avoidance portion is located between two adjacent connecting arms.

[0011] The avoidance portion is provided with a plurality of protruding support ribs at intervals, with a heat dissipation gap between two adjacent support ribs, and the top surfaces of the support ribs cooperate to form a support position for supporting the water pump, and the support position is provided with a support arc surface adapted to the shape of the water pump.

[0012] The water cooling assembly also includes a mounting sleeve, which is arranged on the outside of the water pump, and the water pump is fixed to the pot cover through the mounting sleeve.

[0013] An installation channel is provided inside the installation sleeve. An installation port for the water pump to enter and exit is provided at one end of the installation channel, and a stop wall is provided at the other end. The stop wall is provided with a wire passing port.

[0014] The outer wall of the mounting sleeve is provided with a fixing rib, the pot cover is provided with a fixing part, and the pressure cooking appliance further includes a fastener, which fastens the fixing rib and the fixing part; or, the mounting sleeve is a structure made of a flexible material, the pot cover is provided with a mounting position, and the mounting sleeve is fixed by interference fit with the mounting position.

[0015] The pot cover comprises a surface cover, a lining cover, and an inner cover. The lining cover is provided with a cooling member protruding downward, the cooling cavity is located inside the cooling member, and the inner cover is provided with a through hole, through which the cooling member passes to extend into the pot body.

[0016] The pot body and the pot cover cooperate to form a cooking cavity, and the vertical projection of the water pump is located outside the cooking cavity.

[0017] The water tank is arranged on the pot cover and close to the connecting end, and at least a part of the water tank is exposed outside the pot cover.

[0018] Due to the adoption of the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0019] 1. In the present invention, the water pump and cooling chamber are both located within the pot lid, making the distance between them closer. This allows the water pump to pump coolant using less power. This also significantly shortens the length of the pipe connecting the water pump and the cooling chamber, thereby saving costs and simplifying the water connection structure. Furthermore, the pot lid's connecting end is pivotally connected to the pot body, and the water pump is closer to the connecting end, bringing the water pump closer to the pot lid's center of rotation. This shortens the lever arm between the water pump and the pot lid's center of rotation. This shifts the pot lid's structural center of gravity backward, closer to the center of rotation. This reduces the torsion force required by the torsion spring and reduces the stress on the torsion spring, making it less susceptible to breakage or damage. This increases the spring's service life and reduces costs. Furthermore, the force exerted by the torsion spring on the pot lid is more stable, resulting in smoother movement during the lid's tilting and opening process, reducing any shaking. Furthermore, since the pot lid's center of gravity is closer to the connecting end, the user saves effort when opening and closing the lid. On the other hand, the center of the pot lid is opposite to the cooking cavity, so it is a heat concentration area. The water pump is closer to the connection end and is at the edge of the pot lid. Therefore, keeping the water pump away from the high-temperature area of the pot lid can reduce the heat transferred to the water pump, keep the water pump at a lower temperature, and help increase the service life of the water pump.

[0020] In addition, by using water cooling to reduce the pressure, there is no need to open the exhaust valve to exhaust when releasing the pressure. While ensuring the pressure relief speed, the whistling sound of the air flow during exhaust is reduced, thereby reducing noise, and will not cause liquid to spray out and cause pollution to the pot lid, greatly improving the user experience.

[0021] 2. As a preferred embodiment of the present invention, the pot lid includes a top cover, a lining cover disposed below the top cover, and an inner cover disposed below the lining cover. The inner cover cooperates with the pot body to form a cooking cavity. The lining cover has a sunken escape portion at the corresponding connecting end, so that an installation space for accommodating a water pump is formed between the escape portion and the top cover. The lining cover is sunken at one end near the connecting end, so that an installation space for accommodating a water pump is formed between the lining cover and the top cover. This not only increases the space between the top cover and the lining cover while maintaining the original thickness of the pot lid, facilitating the installation of the water pump, but also ensures that after the water pump is installed, a certain gap is still left between the top cover or the lining cover, thereby providing heat dissipation and shock absorption, preventing the top cover from vibrating when the water pump is working, which would affect the user experience. Furthermore, the sunken escape portion makes the lining cover as a whole more tortuous, thereby helping to increase the structural strength of the lining cover and reduce the risk of deformation or damage to the lining cover.

[0022] 3. As a preferred embodiment of the present invention, the avoidance portion is provided with a plurality of protruding support ribs at intervals, and a heat dissipation gap is provided between two adjacent support ribs. The top surfaces of the support ribs cooperate to form a support position for supporting the water pump, and the support position is provided with a support arc surface that matches the shape of the water pump. The support ribs protrude upward to support the water pump, and a plurality of support ribs together form a support position. The water pump is placed in the support position. The provision of the support arc surface makes the support position surface more compatible with the shape of the water pump surface, thereby making the two surfaces more closely fitted, increasing the contact area, and improving the support stability. The heat dissipation gaps between the support ribs allow the heat generated by the water pump during operation to be lost through the heat dissipation gaps, thereby increasing the heat dissipation area of the water pump and improving the heat dissipation efficiency of the water pump.

[0023] 4. As a preferred embodiment of the present invention, the pot cover includes a surface cover, a lining cover, and an inner cover. The lining cover is provided with a downwardly protruding cooling element, the cooling cavity is located inside the cooling element, and the inner cover is provided with a through hole, through which the cooling element passes to extend into the interior of the pot body. The cooling element is provided on the lining cover, and the cooling cavity is located inside the cooling element. Compared with the method in which the cooling cavity is provided on the inner cover, the position of the cooling cavity is more stable and reliable. Since the user needs to drive the inner cover or other parts of the pot cover to rotate during use, the position of the cooling cavity can be prevented from changing during the rotation of the inner cover, which would affect the sealing of the pipe connection between the cooling cavity and the water-cooling component, thereby ensuring the stability of the pipe connection. In addition, the inner cover can be provided with a detachable structure so that the user can clean the inner cover. After the inner cover is removed, the cooling element is always located on the lining cover, so the pipe connection also maintains a stable connection. After the inner cover is installed, there is no need to reconnect the pipe, further ensuring the stability and reliability of the pipe connection of the water-cooling component and avoiding leakage.

[0024] 5. As a preferred embodiment of the present invention, the pot body and the lid cooperate to form a cooking cavity, with the vertical projection of the water pump located outside the cooking cavity. During cooking, heat from the cooking cavity radiates onto the lid, where it is concentrated in the area covered by the projection of the cooking cavity. Positioning the water pump outside this area prevents direct heat transfer from the cooking cavity to the water pump, effectively keeping the water pump away from the heat-concentrated area on the lid. This effectively reduces the temperature at the water pump, allowing it to operate at a safe temperature, slowing the aging of its components due to high temperatures, and ultimately improving its service life and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0026] Figure 1This is an exploded view of the structure of a pot cover according to one embodiment of the present invention;

[0027] Figure 2 This is a cross-sectional view of a pot cover according to one embodiment of the present invention;

[0028] Figure 3 This is a schematic structural diagram of some components in one embodiment of the present invention;

[0029] Figure 4 This is a schematic structural diagram of a liner cover according to an embodiment of the present invention, wherein the water pump is not shown;

[0030] Figure 5 for Figure 4 Magnified view of area A in the middle;

[0031] Figure 6 This is a schematic structural diagram of the installation sleeve in one embodiment of the present invention;

[0032] Figure 7 for Figure 6 Schematic diagram of the internal structure of the middle installation sleeve;

[0033] Figure 8 This is an exploded view of the structure of some components of the pot cover under one embodiment of the present invention.

[0034] in;

[0035] 1 pot cover; 11 surface cover; 111 installation space; 12 lining cover; 121 avoidance portion; 122 connecting arm; 123 supporting rib; 124 heat dissipation gap; 125 supporting arc surface; 126 fixing portion; 13 inner cover; 131 through hole; 14 connecting end; 15 opening and closing end; 16 locking ring;

[0036] 2 water pumps;

[0037] 3 water tanks;

[0038] 4. Mounting sleeve; 41. Mounting opening; 42. Stop wall; 43. Wire-passing opening; 44. Fixing rib position; 45. Mounting channel; 5. Cooling element. DETAILED DESCRIPTION

[0039] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0040] In the following description, many specific details are set forth to facilitate 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.

[0041] In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] In this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0043] In the present invention, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "implementation method", "embodiment", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0044] like Figure 1 、 Figure 2 As shown, a vent-free pressure cooking device includes a pot body and a pot cover 1 covering the pot body, the pot cover 1 is provided with a cooling chamber, and the pressure cooking device is further provided with a water cooling assembly, the pot cover 1 has a connecting end 14 and an opening and closing end 15, the connecting end 14 is rotatably connected to the pot body so that the opening and closing end 15 can be flipped around the connection to open or close the pot body, the water cooling assembly includes a water tank 3 and a water pump 2 arranged on the pot cover 1, and the distance between the water pump 2 and the opening and closing end 15 is greater than the distance between the water pump 2 and the connecting end 14.

[0045] It should be noted that the "no exhaust" in the present invention means that the pressure relief process after cooking is completed does not completely rely on the pressure relief valve for exhaust and pressure relief, and does not mean that the pot cover 1 is not provided with any exhaust structure. For example, the pot cover 1 can still be provided with a float valve to discharge the cold air in the pot before pressure is applied.

[0046] In addition, the present invention does not limit the water-cooling medium used to cool and relieve the pressure of the pot cover 1. In a specific embodiment, the water-cooling medium is water, and the user can directly use municipal tap water. In other embodiments, the water-cooling medium can also be a coolant, which is not limited here.

[0047] In the present invention, the water pump 2 and the cooling chamber are both located within the pot lid 1, making the distance between the water pump 2 and the cooling chamber closer. This allows the water pump 2 to pump the coolant using less power. This also significantly reduces the length of the pipe connecting the water pump 2 and the cooling chamber, thereby saving costs and simplifying the water connection structure. Furthermore, the connection end 14 of the pot lid 1 is pivotally connected to the pot body, and the water pump 2 is closer to the connection end 14, bringing the water pump 2 closer to the rotation center of the pot lid 1. This shortens the lever arm between the water pump 2 and the rotation center of the pot lid 1. This shifts the center of gravity of the pot lid 1 rearward, closer to the rotation center. This reduces the torsion force required by the torsion spring and reduces the stress on the torsion spring, making it less susceptible to breakage or damage. This increases the spring's service life and reduces costs. Furthermore, the force exerted by the torsion spring on the pot lid 1 is more stable, making the pot lid 1 move more smoothly during opening and closing, reducing any shaking. Furthermore, since the center of gravity of the pot lid 1 is closer to the connection end 14, the user saves effort when opening and closing the pot lid. On the other hand, the center of the pot cover 1 is opposite to the cooking cavity, so it is a heat concentration area. The water pump 2 is closer to the connection end 14 and is at the edge of the pot cover 1. Therefore, the water pump 2 is kept away from the high-temperature area of the pot cover 1, which can reduce the heat transferred to the water pump 2 and keep the water pump 2 at a lower temperature, which helps to increase the service life of the water pump 2.

[0048] In addition, by using water cooling to reduce the pressure, there is no need to exhaust by opening the exhaust valve to exhaust when releasing the pressure. While ensuring the pressure relief speed, the whistling sound of the air flow during exhaust is reduced, thereby reducing noise, and will not cause liquid to spray out and cause pollution to the pot cover 1, greatly improving the user experience.

[0049] It should be noted that the connection end 14 and the opening and closing end 15 are relatively arranged at the two ends of the pot lid 1. Specifically, on the centerline of the pot lid 1 in the front-to-back direction, the connection end 14 is located at one end of the pot lid 1, and the opening and closing end 15 is located at the other end of the pot lid 1. The horizontal straight-line distance between the water pump 2 and the connection end 14 is smaller than the horizontal straight-line distance between the water pump 2 and the opening and closing end 15. In other words, the pot lid 1 can be divided into a front area and a rear area using the left and right centerlines as the dividing line, with the opening and closing end 15 located in the front area, the connection end 14 located in the rear area, and the water pump 2 located in the rear area, so that the water pump 2 is closer to the connection end 14 than to the center of the pot lid 1.

[0050] It should be noted that this invention only uses a torsion spring between the pot lid 1 and the pot body as an example to explain the present invention's solution in detail. However, this invention does not limit the damping structure between the pot lid 1 and the pot body. In addition to the torsion spring, other damping structures between the pot lid 1 and the pot body can also be used to cushion or assist the opening and closing of the pot lid, such as a damper.

[0051] The present invention does not limit the location of the water tank 3. In one embodiment, the water tank 3 is located within the pot body to make the lid 1 thinner and lighter, improving the user experience when opening and closing the lid. For example, the water tank 3 can be located on the front side of the pot body (corresponding to the side of the lid 1 opening and closing end 15) to more effectively utilize the pot body's internal space and shift the pot body's center of gravity forward, preventing the pot body from tipping backward. Because the lid 1 and pot body are pivotally connected, a pipeline can be connected to the water pump 2 and the water tank 3 via the connection end 14.

[0052] In another embodiment, Figure 1 、 Figure 2 As shown, the water tank 3 is disposed on the pot cover 1 and close to the connecting end 14 , and at least a portion of the water tank 3 is exposed outside the pot cover 1 .

[0053] The water tank 3 is disposed within the pot lid 1, near the connection end 14, and also in the rear region of the pot lid 1. This, on the one hand, allows the water pump 2, water tank 3, and cooling chamber to all be located within the pot lid 1, concentrating their locations. This further shortens the connecting pipes between them, optimizes the structural layout of the pot lid 1, and reduces costs. Furthermore, the provision of the water tank 3 further shifts the center of gravity of the pot lid 1 toward the connection end 14, thereby further reducing the force on the torsion spring and making opening and closing the pot lid 1 more labor-efficient.

[0054] The exposed design of the water tank 3 not only allows the user to intuitively see the water level inside the water tank 3, so that the cooling medium can be added to the water tank 3 more promptly to ensure the normal use of the water cooling function, but also facilitates the installation and removal of the water tank 3, further reducing the difficulty of use for users and improving the user experience.

[0055] Preferably, the water tank 3 is detachably mounted on the pot cover 1 .

[0056] The user can use a variety of methods to add cooling medium to the water tank 3. For example, the water tank 3 can be removed from the pot cover 1, and after the water tank 3 is filled, the water tank 3 can be installed on the pot cover 1. For another example, the water tank 3 can be kept intact and the cooling medium can be added directly from the top of the water tank 3. This is not limited here.

[0057] As a preferred embodiment of the present invention, Figure 2As shown, the pot cover 1 includes a surface cover 11, a lining cover 12 arranged below the surface cover 11, and an inner cover 13 arranged on the lower side of the lining cover 12. The inner cover 13 cooperates with the pot body to form a cooking cavity. The corresponding connection end 14 of the lining cover 12 has a sunken avoidance portion 121, so that an installation space 111 for accommodating the water pump 2 is formed between the avoidance portion 121 and the surface cover 11.

[0058] The end of the lining cover 12 near the connection end 14 is sunken, so that an installation space 111 for accommodating the water pump 2 is formed between the lining cover 12 and the surface cover 11. This not only increases the space between the surface cover 11 and the lining cover 12 while maintaining the original thickness of the pot cover 1, making it easier to install the water pump 2, but also ensures that after the water pump 2 is installed, there is still a certain gap between it and the surface cover 11 or the lining cover 12, thereby playing a role in heat dissipation and shock absorption, preventing the surface cover 11 from vibrating when the water pump 2 is working, which affects the user experience. In addition, the sunken avoidance portion 121 makes the lining cover 12 more tortuous as a whole, thereby helping to increase the structural strength of the lining cover 12 and reduce the risk of deformation or damage to the lining cover 12.

[0059] Of course, in other embodiments, the area of the cover 11 corresponding to the connection end 14 can also be configured as an upwardly raised structure to form the installation space 111. Alternatively, the lining cover 12 is provided with a sunken avoidance portion 121, and the cover 11 is also provided with a raised structure to further increase the installation space 111.

[0060] Furthermore, if Figure 3 、 Figure 4 As shown, the connecting end 14 is protruded with a connecting arm 122 for rotationally connecting to the pot body. The connecting arms 122 are arranged at intervals along the circumference of the lining cover 12 , and the avoidance portion 121 is located between two adjacent connecting arms 122 .

[0061] The water pump 2 is located between the two connecting arms 122, which not only further optimizes the spatial layout inside the pot cover 1 and reasonably utilizes the space of the lining cover 12, but also makes the water pump 2 closer to the connecting end 14 and closer to the connection between the pot cover 1 and the pot body.

[0062] Preferably, if Figure 3 As shown, the axis of the water pump 2 is perpendicular to the end surface of the connecting arm 122.

[0063] like Figure 4 、 Figure 5 As shown, the avoidance portion 121 is provided with a plurality of protruding support ribs 123 at intervals, and a heat dissipation gap 124 is provided between two adjacent support ribs 123. The top surfaces of the support ribs 123 cooperate to form a support position for supporting the water pump 2, and the support position is provided with a support arc surface 125 adapted to the shape of the water pump 2.

[0064] The upwardly projecting support ribs 123 support the water pump 2. Multiple support ribs 123 together form a support base, where the water pump 2 is positioned. The provision of supporting arcs 125 allows the support base surface to better match the shape of the water pump 2, further enhancing the fit between the two surfaces, increasing the contact area and improving support stability. Heat dissipation gaps 124 are provided between the support ribs 123, allowing heat generated by the water pump 2 during operation to dissipate through these gaps, increasing the heat dissipation area of the water pump 2 and improving its heat dissipation efficiency.

[0065] like Figure 5 As shown, the support ribs 123 are arranged at intervals along the axial direction of the water pump 2.

[0066] This embodiment does not limit the fixing position of the water pump 2 . The water pump 2 can be fixed to the lining cover 12 or the surface cover 11 .

[0067] In a preferred embodiment, Figure 1 、 Figure 3 As shown, the water cooling assembly further includes a mounting sleeve 4 , which is sleeved on the outside of the water pump 2 , and the water pump 2 is fixed to the pot cover 1 through the mounting sleeve 4 .

[0068] The mounting sleeve 4 serves as a bracket. After the water pump 2 is placed in the mounting sleeve 4, the mounting sleeve 4 is fixed to the pot cover 1. The mounting sleeve 4 can eliminate part of the vibration generated by the water pump 2 when working, and prevent the water pump 2 from directly transmitting the vibration to the pot cover 1.

[0069] Specifically, such as Figure 6 、 Figure 7 As shown, the installation sleeve 4 has an installation channel 45 inside, one end of the installation channel 45 is provided with an installation port 41 for the water supply pump 2 to enter and exit, and the other end is provided with a stop wall 42, and the stop wall 42 is provided with a wire passing port 43.

[0070] like Figure 8 As shown, when the water pump 2 and the mounting sleeve 4 are assembled, the water pump 2 is inserted into the mounting channel 45 from the mounting opening 41. The setting of the stop wall 42 at the other end can serve as a prompt for the installation of the water pump 2. After the installation is completed, the wire is connected to the water pump 2 through the wire opening 43, and the other end of the water pump 2 is connected to the water channel through the mounting opening 41.

[0071] It should be noted that this embodiment does not limit the connection method between the mounting sleeve 4 and the pot cover 1, which includes but is not limited to the situations listed in the following embodiments:

[0072] Example 1: In this example, Figure 5 、 Figure 6 、 Figure 7As shown, the outer wall of the mounting sleeve 4 is provided with a fixing rib 44 , the pot cover 1 is provided with a fixing portion 126 , and the pressure cooking appliance further comprises a fastener, which fastens the fixing rib 44 and the fixing portion 126 .

[0073] Specifically, the fixing ribs 44 are provided with fixing holes, and the fixing portion 126 is a screw post, and the fixing ribs 44 and the fixing portion 126 are fastened together using fasteners such as screws. Preferably, there are multiple fixing ribs 44 and fixing portions 126, and the fixing ribs 44 are arranged on different sides of the outer circumference of the water pump 2 to achieve multi-point fixation and improve fixation stability.

[0074] Embodiment 2: In this embodiment, the mounting sleeve 4 is a structure made of a flexible material, the pot cover 1 is provided with a mounting position, and the mounting sleeve 4 is interference fit with the mounting position for fixation.

[0075] In this embodiment, the mounting sleeve 4 is a flexible structure, thus providing a better shock-absorbing effect, reducing the vibration generated during the operation of the water pump 2. Since the mounting sleeve 4 is elastically deformable, it can be inserted into the mounting position by means of an interference fit to achieve fixation, thereby eliminating the need for additional fasteners and the need for a fixing structure, thus saving costs.

[0076] Of course, the mounting sleeve 4 can also be connected to the pot cover 1 in other ways, such as snap connection, etc., which is not limited here.

[0077] Preferably, if Figure 2 As shown, the pot cover 1 includes a surface cover 11, a lining cover 12, and an inner cover 13. The lining cover 12 is provided with a cooling member 5 protruding downward, and the cooling cavity is located inside the cooling member 5. The inner cover 13 is provided with a through hole 131, and the cooling member 5 passes through the through hole 131 to extend into the interior of the pot body.

[0078] The cooling element 5 is arranged on the lining cover 12, and the cooling cavity is located inside the cooling element 5. Compared with the method in which the cooling cavity is arranged on the inner cover 13, the position of the cooling cavity is more stable and reliable. Since the user needs to drive the inner cover 13 or other parts of the pot cover 1 to rotate during use, it is possible to avoid the position of the cooling cavity changing during the rotation of the inner cover 13, which affects the sealing of the pipe connection between the cooling cavity and the water-cooling component, thereby ensuring the stability of the pipe connection. In addition, the inner cover 13 can be set as a detachable structure to facilitate the user to clean the inner cover 13. After the inner cover 13 is removed, the cooling element 5 is always located on the lining cover 12, so the pipe connection also maintains a stable connection. After the inner cover 13 is installed, there is no need to reconnect the pipe, further ensuring the stability and reliability of the water-cooling component pipe connection and avoiding leakage.

[0079] Preferably, a sealing member is provided between the through hole 131 and the cooling member 5 to prevent the gas and liquid in the pot from entering the interior of the pot cover 1 through the gap between the two.

[0080] In this embodiment, the cooling element 5 passes through the inner cover 13 and directly contacts the high-temperature gas in the pot to cool it. Of course, the cooling chamber can also be set in the inner cover 13 so that the cooling medium first cools the inner cover 13 and then cools the gas in the pot through the inner cover 13. This is not limited here.

[0081] In one embodiment, the inner lid 13 is provided with cover teeth, and the pot body is provided with pot teeth. The inner lid 13 can rotate relative to the liner cover 12 to lock or unlock the pot teeth and the cover teeth, thereby locking or unlocking the pot lid 1 and the pot body. Preferably, the cooling element 5 is located at the center of the inner lid 13 so that the relative position of the inner lid 13 and the pot body does not change during the rotation of the inner lid 13, thereby improving the sealing between the two.

[0082] In another embodiment, Figure 2 As shown, the pot lid 1 further includes a locking ring 16, which is provided with cover teeth, and the pot body is provided with pot teeth. The locking ring 16 can rotate relative to the lining cover 12 to lock or unlock the pot teeth and the cover teeth, thereby locking or unlocking the pot lid 1 and the pot body. The locking ring 16 forms a clearance hole, and the cooling element 5 passes through the clearance hole, so that the inner cover 13 and the lining cover 12 do not rotate with the locking ring 16, and the relative position of the cooling element 5 and the inner cover 13 remains unchanged.

[0083] Preferably, the inner cover 13 is detachably fixed to the lining cover 12 so that the user can remove the inner cover 13 for cleaning.

[0084] As a preferred embodiment of the present invention, the pot body and the pot cover 1 cooperate to form a cooking cavity, and the vertical projection of the water pump 2 is located outside the cooking cavity.

[0085] During the cooking process, the heat in the cooking cavity will radiate to the pot cover 1. The heat on the pot cover 1 is concentrated in the area covered by the projection of the cooking cavity. The water pump 2 is arranged outside this area, which can prevent the heat in the cooking cavity from being directly transferred to the water pump 2. The water pump 2 is kept away from the heat concentration area on the pot cover 1, effectively reducing the temperature of the water pump 2, making the water pump 2 work at a safe temperature, slowing down the high-temperature aging of the various components of the water pump 2, and helping to improve the service life and reliability of the water pump 2.

[0086] Anything not described in this utility model can be achieved by adopting or drawing on existing technologies.

[0087] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0088] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of the claims of the present invention.

Claims

1. A vent-free pressure cooking appliance comprising a pot body and a pot cover covering the pot body, wherein the pot cover is provided with a cooling cavity, and the pressure cooking appliance is further provided with a water cooling assembly, characterized in that: The pot cover has a connecting end and an opening and closing end, and the connecting end is rotatably connected to the pot body so that the opening and closing end can be flipped around the connection to open or close the pot body. The water cooling component includes a water tank and a water pump arranged on the pot cover, and the distance between the water pump and the opening and closing end is greater than the distance between the water pump and the connecting end.

2. The exhaust-free pressure cooking device according to claim 1, characterized in that: The pot cover includes a surface cover, a lining cover arranged below the surface cover, and an inner cover arranged on the lower side of the lining cover. The inner cover cooperates with the pot body to form a cooking cavity. The lining cover has a sunken avoidance portion corresponding to the connecting end, so that an installation space for accommodating the water pump is formed between the avoidance portion and the surface cover.

3. The exhaust-free pressure cooking appliance according to claim 2, characterized in that: The connecting end is convexly provided with a connecting arm for rotationally connecting to the pot body, the connecting arms are arranged at intervals along the circumference of the lining cover, and the avoidance portion is located between two adjacent connecting arms.

4. The exhaust-free pressure cooking appliance according to claim 2, wherein: The avoidance portion is provided with a plurality of protruding support ribs at intervals, and a heat dissipation gap is provided between two adjacent support ribs. The top surfaces of the support ribs cooperate to form a support position for supporting the water pump, and the support position is provided with a support arc surface adapted to the shape of the water pump.

5. The exhaust-free pressure cooking appliance according to claim 1, wherein: The water cooling assembly further includes a mounting sleeve, which is arranged on the outside of the water pump, and the water pump is fixed to the pot cover through the mounting sleeve.

6. The exhaust-free pressure cooking appliance according to claim 5, characterized in that: The installation sleeve has an installation channel inside, one end of the installation channel is provided with an installation opening for the water pump to enter and exit, and the other end is provided with a stop wall, and the stop wall is provided with a wire passing opening.

7. The exhaust-free pressure cooking appliance according to claim 5, characterized in that: The outer wall of the mounting sleeve is provided with a fixing rib, the pot cover is provided with a fixing portion, and the pressure cooking appliance further comprises a fastener, the fastener fastening the fixing rib and the fixing portion; or The installation sleeve is a structure made of flexible material. The pot cover is provided with an installation position. The installation sleeve is fixed to the installation position through interference fit.

8. The exhaust-free pressure cooking appliance according to claim 1, wherein: The pot cover includes a surface cover, a lining cover, and an inner cover. The lining cover is provided with a cooling member protruding downward, the cooling cavity is located inside the cooling member, and the inner cover is provided with a through hole. The cooling member passes through the through hole to extend into the interior of the pot body.

9. The exhaust-free pressure cooking appliance according to claim 1, wherein: The pot body and the pot cover cooperate to form a cooking cavity, and the vertical projection of the water pump is located outside the cooking cavity.

10. The exhaust-free pressure cooking appliance according to claim 1, wherein: The water tank is arranged on the pot cover and close to the connecting end, and at least a part of the water tank is exposed outside the pot cover.

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