Water-cooling pot cover assembly and pressure cooking utensil

Abstract

The pot cover assembly comprises a cover body, the cover body is provided with a cooling cavity communicated with the water cooling assembly, the cover body is provided with a connecting end and an opening and closing end which are opposite to each other, the connecting end is used for being rotationally connected with a pot body so that the opening and closing end can turn over around the connecting position, and the cover body is provided with a center line. The center line divides the pot cover into a rear area and a front area, the opening and closing end is located in the front area, the connecting end is located in the rear area, and the cooling volume of the cooling cavity in the front area is larger than that in the rear area. In the water cooling process, more cooling liquid enters the part, in the front area, of the cooling cavity, and therefore the front area and the space, corresponding to the front area, in the pot can be cooled more effectively. When a user opens the cover, after the front end of the cover body is opened, the amount of gushing steam is greatly reduced, the temperature difference between the steam and external air is reduced, the steam is relatively not easy to liquefy, cleanliness of the front end of the pot cover is guaranteed, cleaning difficulty is reduced, and use experience is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of kitchen appliances, and particularly relates to a water-cooled pot cover assembly and a pressure cooking appliance. Background Art

[0002] When users open the lid of a pressure cooker after cooking, they often open the front end first, then flip the entire lid upwards. This is especially true for one-piece cookers, where the rear end of the lid is pivotally connected to the pot body, allowing the lid to flip upwards for opening. Therefore, when opening the lid, the front end must be opened first, and then the lid gradually flips back to open completely.

[0003] However, after cooking is finished, although the pressure has been released, a large amount of high-temperature gas and steam still accumulates in the cooking chamber. Therefore, when the front end of the pot lid is opened, a large amount of high-temperature steam will gush out from the gap between the front end of the pot lid and the pot body. When the user opens the lid, he or she is generally at the front end of the pot lid. Therefore, the gushing steam not only affects the user's vision, but also poses a risk of burns.

[0004] In addition, because the temperature of the gas and steam inside the pot is high, while the temperature of the outside air is relatively low, the moment the lid is opened, the steam inside the pot and the outside air quickly come into contact, resulting in a large temperature difference between the two. Therefore, the high-temperature steam gushing out from the front of the lid drops in temperature suddenly, quickly liquefies, and forms condensed water, which adheres to the lid and the front of the pot body. Since the water collection structure on the pot body is mostly located at the rear end of the pot body, the condensed water at the front of the pot body and lid cannot often be effectively collected. This leads to more serious contamination of the pot body and the front of the lid, increasing the cleaning burden on the user. Furthermore, when users serve rice, it is easy for it to spill on the front of the pot body, where it mixes with the accumulated condensed water, further exacerbating the contamination of the front of the pot body and affecting the user experience. Utility Model Content

[0005] The utility model provides a water-cooled pot cover assembly and a pressure cooking appliance, which solve the problems that when the pot cover is opened, high-temperature steam in the pot gushes out from the front end, affecting user use, and condensed water easily accumulates at the front end of the pot cover, making it difficult to clean.

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

[0007] A water-cooled pot cover assembly includes a cover body, which is provided with a cooling cavity connected to the water-cooling assembly. The cover body has a connecting end and an opening and closing end that are arranged opposite to each other. The connecting end is used to be rotatably connected to the pot body so that the opening and closing end can be flipped around the connection. The cover body has a center line, which divides the pot cover into a rear area and a front area. The opening and closing end is located in the front area, and the connecting end is located in the rear area. The cooling volume of the cooling cavity in the front area is larger than the cooling volume in the rear area.

[0008] The water-cooled pot cover assembly of the utility model also has the following additional technical features:

[0009] The cover body comprises a lining cover and an inner cover located below the lining cover. The lining cover is provided with a cooling member protruding downward. The cooling cavity is located inside the cooling member. The inner cover is provided with a through hole for the cooling member to pass through.

[0010] The inner cover is detachably fixed to the lining cover. The water-cooled pot cover assembly also includes a locking ring, which can be rotated relative to the lining cover to lock or unlock the water-cooled pot cover assembly with the pot body. The locking ring forms an avoidance opening, and the cooling element passes through the avoidance opening.

[0011] The lining cover is also provided with a temperature measuring piece and an exhaust pipe. The inner cover has a matching area corresponding to the temperature measuring piece and a matching opening for the exhaust pipe to pass through. The matching area, the through hole, and the matching opening are collinearly arranged.

[0012] The cover body includes a lining cover and an inner cover located below the lining cover. The cooling cavity is arranged in the inner cover, and the cooling cavity is located in the front area; or, the area of the cooling cavity in the front area is larger than the area in the rear area; or, the height of the cooling cavity in the front area is greater than the height in the rear area.

[0013] The water-cooled pot cover assembly further comprises a matching piece, which is arranged on the lower side of the inner cover and protrudes downward, so that the matching piece and the inner cover cooperate to form a cooling cavity.

[0014] The water-cooled pot cover assembly also includes a water tank, the distance between the water tank and the connecting end is smaller than the distance between the water tank and the opening and closing end, and at least part of the area of the water tank is exposed outside the cover body.

[0015] The water tank is located at a height higher than the cooling cavity; alternatively, the water-cooled pot cover assembly further includes a water pump, which connects the water tank and the cooling cavity to pump the liquid in the water tank into the cooling cavity.

[0016] At least a part of the cooling cavity is located on the side of the cover body facing the pot body, and the cooling cavity is a rotating body.

[0017] The utility model also discloses a pressure cooking appliance, comprising a pot body and the above-mentioned water-cooled pot cover assembly; the water-cooled pot cover assembly and the pot body cooperate to form a cooking cavity, and the pot body or the water-cooled pot cover assembly is provided with a water tank, which is connected to the cooling cavity.

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

[0019] 1. In this utility model, the pot lid is equipped with a cooling chamber, which allows for water-cooling to relieve pressure after pressure cooking. Compared to exhaust pressure relief, water-cooling pressure relief allows the cooling chamber to contact the high-temperature gas inside the pot, rapidly cooling the gas and, in turn, reducing the pressure. The water-cooling process is also quieter, eliminating the whistling sound caused by high-speed gas flow, providing a better user experience. Furthermore, water-cooling pressure relief prevents liquid and bubbles from being discharged along with the gas during exhaust, potentially contaminating the pot lid.

[0020] In addition, the centerline of the lid body divides the lid body into a front area and a rear area, wherein the connection end is located in the rear area and is used to rotate with the pot body, so that the front end of the pot lid, that is, the opening and closing end, can be flipped around the connection. The cooling volume of the cooling cavity in the front area is larger than the cooling volume in the rear area, so that during the water cooling process, more coolant enters the portion of the cooling cavity in the front area, thereby more effectively cooling the front area and the corresponding space in the pot, thereby improving the cooling effect of the front end in a targeted manner. As a result, the temperature and amount of steam in the front area are reduced, and when the user opens the lid, the amount of steam gushing out after the front end of the lid is opened is greatly reduced. In addition, the temperature difference between the steam and the outside air is reduced, and it is relatively difficult to liquefy. It flows more upward in a gaseous state, and a large amount of condensed water will not adhere to the front end of the pot lid. This ensures the cleanliness of the front end of the pot lid, reduces the difficulty of cleaning, and improves the user experience.

[0021] 2. As a preferred embodiment of the present invention, the cover body includes a lining cover and an inner cover located below the lining 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 for the cooling element to pass through. The inner cover is used to cooperate with the pot body to form a cooking cavity, which is in direct contact with the cooking environment in the pot. The cooling element is provided on the lining cover, and the cooling cavity is located inside the cooling element. The lower end of the cooling element extends into the cooking cavity through the through hole of the inner cover to directly contact the high-temperature gas in the cooking cavity, thereby cooling the cooking cavity and achieving the purpose of rapid pressure relief. Since the cooling element is provided on the lining cover, even if the inner cover can rotate relative to the lining cover, the lining cover will not move, thereby ensuring that the cooling element and the water-cooling pipeline connected to the cooling element will not change position, thereby maintaining a stable connection and seal between the water-cooling pipeline and the cooling cavity, thereby improving the reliability of the pipeline connection.

[0022] Furthermore, when the inner cover is removed from the liner, the cooling element remains attached to the liner without changing position as the inner cover is installed or removed. This eliminates the need to align the water-cooling line with the cooling chamber when installing the inner cover, improving installation and removal efficiency and operational convenience, while enhancing user experience. Furthermore, the water-cooling line remains connected to the cooling chamber, eliminating the need for frequent reconnections. This ensures a tight connection, further reducing the risk of water-cooling liquid leakage and ensuring cooling efficiency.

[0023] In summary, after the water tank and the cooling chamber of the utility model are connected through a pipeline, in subsequent use, no matter the user rotates the inner cover or removes the inner cover, the cooling chamber will never be separated from the pot cover, and the relative position with the water tank will always remain fixed, and there is no relative movement between the two. Therefore, the position of the pipeline also remains stable, and a reliable connection is always maintained.

[0024] 3. As a preferred embodiment of the present invention, the lining cover is also provided with a temperature measuring part and an exhaust pipe, and the inner cover has a matching area corresponding to the temperature measuring part, and a matching port for the exhaust pipe to pass through, and the matching area, the through hole, and the matching port are collinearly arranged. The inner cover is usually circular, so when installing the inner cover, the positioning of the inner cover is a major problem that troubles users and assemblers. In this embodiment, the through hole of the inner cover cooperates with the cooling part of the cover body, the matching area cooperates with the temperature measuring part of the cover body, and the matching port cooperates with the exhaust pipe, and the three are collinear, so that the three groups of matching structures constitute the three-point positioning of the inner cover installation. The user can use the three groups of matching structures as a reference to position the inner cover, and then install the inner cover to the cover body, thereby reducing the difficulty of positioning the inner cover and improving the efficiency of the inner cover installation.

[0025] 4. As a preferred embodiment of the present invention, the cover body includes a lining cover and an inner cover located below the lining cover, and the cooling cavity is provided in the inner cover. The cooling cavity is provided in the inner cover, so in addition to being able to cool down the air in the pot, the cooling cavity can also cool down the inner cover. On the one hand, due to the large area of the inner cover, by cooling down the inner cover, the inner cover with a lower temperature is then in contact with a large area of the air in the pot, and the low-temperature inner cover is used to assist in cooling down the air in the pot, the cooling speed can be increased, thereby accelerating the pressure relief and realizing quick opening of the cover. On the other hand, the temperature of the inner cover is reduced, and when the bubbles in the pot rise to the pot cover with the gas, the bubbles can quickly burst at a low temperature, thereby separating the gas and liquid, and the liquid falls into the pot under the action of gravity, thereby improving the anti-overflow effect during the exhaust process, and preventing the liquid and bubbles from being ejected with the gas, causing contamination of the outer surface of the pot cover.

[0026] 5. As a preferred embodiment of the present invention, the water-cooled pot lid assembly further includes a water tank, wherein the distance between the water tank and the connection end is smaller than the distance between the water tank and the opening and closing end, and at least part of the water tank is exposed to the lid body. The water tank is closer to the rotation center of the pot lid, and the lever arm between the water tank and the rotation center of the pot lid is shorter. On the one hand, this causes the structural center of gravity of the pot lid to move backward, closer to the rotation center, thereby reducing the torsion force required of components such as torsion springs that act as a damping or assisting force for the movement of the pot lid. At the same time, the torsion springs are subjected to less stress, and are less likely to break or be damaged, thereby increasing the service life of the torsion springs and saving costs. Moreover, the force exerted by the torsion springs on the pot lid is more stable, and the movement of the pot lid during flipping and opening is smoother, reducing the shaking of the pot lid. At the same time, since the center of gravity of the pot lid is closer to the connection end, the user can save more effort when operating the opening and closing of the lid. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 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:

[0028] Figure 1 This is an exploded view of the structure of a water-cooled pot cover assembly according to one embodiment of the present invention;

[0029] Figure 2 This is a cross-sectional view of a water-cooled pot cover assembly according to one embodiment of the present invention;

[0030] Figure 3 for Figure 2 A cross-sectional view of the water-cooling pot cover assembly from another perspective;

[0031] Figure 4 This is an exploded view of the structure of the cover body and the inner cover in the water-cooled pot cover assembly according to one embodiment of the present invention;

[0032] Figure 5 for Figure 4 Schematic diagram of the structure of the water-cooled pot cover assembly.

[0033] in:

[0034] 1 cover body; 11 lining cover; 111 temperature measuring element; 112 exhaust pipe; 12 inner cover; 121 opening; 122 matching opening; 123 through hole; 13 cooling element; 131 cooling cavity; 132 guide tip; 14 connecting end; 15 opening and closing end; 16 rear area; 17 front area; 18 cover closing portion; 19 hinged portion;

[0035] 2 locking rings;

[0036] 3 water tanks;

[0037] 4 water pumps. DETAILED DESCRIPTION

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] like Figure 4 、 Figure 5As shown, a water-cooled pot cover assembly includes a cover body 1, which is provided with a cooling cavity 131 connected to the water-cooling assembly. The cover body 1 has a connecting end 14 and an opening and closing end 15 arranged opposite to each other. The connecting end 14 is used to be rotatably connected to the pot body so that the opening and closing end 15 can flip around the connection. The cover body 1 has a center line, which divides the pot cover into a rear area 16 and a front area 17. The opening and closing end 15 is located in the front area 17, and the connecting end 14 is located in the rear area 16. The cooling volume of the cooling cavity 131 in the front area 17 is greater than the cooling volume in the rear area 16.

[0044] It should be noted that if Figure 5 As shown, the lid body 1 includes a covering portion 18 and a hinge portion 19 located on the outer periphery of the covering portion 18 and protruding laterally, which is used for rotational connection with the pot body. The covering portion 18 corresponds to the inner lid 12, and the inner lid 12 is mounted on the covering portion 18 and is concentric with the covering portion 18. In the present utility model, the center of the lid body 1 refers to the center of the covering portion 18, and the center line refers to a straight line passing through the center of the covering portion 18.

[0045] In this utility model, the pot lid is equipped with a cooling chamber 131, which allows for water-cooling to relieve pressure after pressure cooking. Compared to exhaust pressure relief, water-cooling pressure relief allows the cooling chamber 131 to contact the high-temperature gas inside the pot, rapidly cooling the gas and, in turn, reducing the pressure. The water-cooling process is also quieter, eliminating the whistling sound caused by high-speed gas flow, providing a better user experience. Furthermore, water-cooling pressure relief prevents liquid and bubbles from being discharged along with the gas during exhaust, potentially contaminating the pot lid.

[0046] Although the pot cover assembly of the present invention is provided with a cooling chamber 131 connected to the water cooling assembly and has a water cooling and pressure reduction function, the pressure relief method of the pot cover assembly and the pressure cooking appliance of the present invention is not limited to water cooling and pressure reduction. For example, after the pressure cooking is completed, the pressure cooking appliance can relieve pressure through the exhaust valve and the water cooling assembly to further increase the pressure relief speed.

[0047] Furthermore, the centerline of the lid 1 divides it into a front region 17 and a rear region 16. The connection end 14 is located in the rear region 16 and is used for rotational connection with the pot body. This allows the front end of the lid, i.e., the opening and closing end 15, to flip around the connection. The cooling volume of the cooling chamber 131 in the front region 17 is greater than that in the rear region 16. This allows more coolant to enter the portion of the cooling chamber 131 within the front region 17 during water cooling. This allows for more effective cooling of the front region 17 and the corresponding space within the pot, specifically improving the cooling effect at the front end. This reduces the temperature and volume of steam in the front region 17, significantly reducing the amount of steam released when the user opens the lid. Furthermore, the temperature difference between the steam and the outside air is reduced, making it less likely to liquefy. The steam flows upward in a gaseous state, avoiding the accumulation of large amounts of condensed water at the front end of the lid. This ensures the cleanliness of the front end of the lid, reduces cleaning difficulty, and enhances the user experience.

[0048] It should be noted that the present invention does not limit the arrangement of the cooling cavity 131. In one embodiment, the cooling cavity 131 is entirely located in the front region 17, and the rear region 16 of the lid body 1 does not have a cooling cavity 131. Therefore, the cooling cavity 131 can centrally cool the cooking space corresponding to the front region 17. In another embodiment, the cooling cavity 131 is located in both the front region 17 and the rear region 16. However, the height of the portion of the cooling cavity 131 located in the front region 17 is greater than the height of the portion located in the rear region 16, or the area of the portion of the cooling cavity 131 located in the front region 17 is greater than the area of the portion located in the rear region 16. This ensures that the volume of the cooling cavity 131 located in the front region 17 is greater than the volume of the cooling cavity 131 located in the rear region 16, allowing more coolant to enter the cooling cavity 131 in the front region 17, and the cooling effect in the front region 17 is better than that in the rear region 16.

[0049] The present invention does not limit the location of the cooling cavity 131, which can be one of the following embodiments:

[0050] Implementation method 1: In this implementation method, Figure 2 、 Figure 4 、 Figure 5 As shown, the cover body 1 includes a lining cover 11 and an inner cover 12 located below the lining cover 11. The lining cover 11 is provided with a cooling member 13 protruding downward, a cooling cavity 131 is located inside the cooling member 13, and the inner cover 12 is provided with a through hole 123 for the cooling member 13 to pass through.

[0051] The inner cover 12 is used to cooperate with the pot body to form a cooking cavity, which is in direct contact with the cooking environment in the pot. The cooling element 13 is arranged on the lining cover 11, and the cooling cavity 131 is located inside the cooling element 13. The lower end of the cooling element 13 extends into the cooking cavity through the through hole 123 of the inner cover 12 to directly contact the high-temperature gas in the cooking cavity, thereby cooling the cooking cavity and achieving the purpose of rapid pressure relief. Because the cooling element 13 is arranged on the lining cover 11, even if the inner cover 12 can rotate relative to the lining cover 11, the lining cover 11 will not move, thereby ensuring that the cooling element 13 and the water-cooling pipeline connected to the cooling element 13 will not change position, thereby maintaining a stable connection and seal between the water-cooling pipeline and the cooling cavity 131, improving the reliability of the pipeline connection.

[0052] Furthermore, when the inner cover 12 is removed from the liner cover 11, the cooling element 13 remains on the liner cover 11 and does not change position as the inner cover 12 is installed or removed. Consequently, the user does not need to align the water-cooling pipe with the cooling cavity 131 when installing the inner cover 12, which reduces the efficiency of installing and removing the inner cover 12 and improves the ease of operation, thereby improving the user experience. Furthermore, the water-cooling pipe can remain connected to the cooling cavity 131 at all times, eliminating the need for frequent reconnections. This ensures a tight connection, further reduces the risk of water-cooling liquid leakage, and ensures water cooling efficiency.

[0053] In summary, after the water tank 3 of the present invention is connected to the cooling chamber 131 through a pipeline, in subsequent use, no matter the user rotates the inner cover 12 or removes the inner cover 12, the cooling chamber 131 will never be separated from the pot cover, and the relative position with the water tank 3 will always remain fixed, and there is no relative movement between the two. Therefore, the position of the pipeline also remains stable, and a reliable connection is always maintained.

[0054] It should be noted that although the cooling member 13 is disposed on the lining cover 11 in this embodiment so that the rotation and removal of the inner cover 12 do not affect the position of the cooling member 13 and the cooling cavity 131, the present invention does not limit whether the inner cover 12 is rotatable or removable.

[0055] Preferably, if Figure 1 、 Figure 2 、 Figure 4 As shown, the inner cover 12 is detachably fixed to the lining cover 11, and the water-cooled pot cover assembly also includes a locking ring 2, which can be rotated relative to the lining cover 11 to lock or unlock the water-cooled pot cover assembly with the pot body. The locking ring 2 forms an avoidance opening, and the cooling member 13 passes through the avoidance opening.

[0056] By setting the inner cover 12 as a detachable structure, it is convenient for the user to remove the inner cover 12 for cleaning separately, which reduces the difficulty of cleaning the inner cover 12. The cooling member 13 passes through the avoidance opening, and the inner cover 12 and the lining cover 11 will not rotate with the locking ring 2, and the relative position of the cooling member 13 and the inner cover 12 remains unchanged.

[0057] In another embodiment, the inner cover 12 can rotate relative to the lining cover 11 to lock or unlock the pot lid and the pot body. Preferably, the cooling member 13 is located at the center of the inner cover 12 so that the relative position of the inner cover 12 and the lining cover 11 does not change during the rotation of the inner cover 12, thereby improving the sealing between the two.

[0058] Furthermore, if Figure 2 、 Figure 4 、 Figure 5 As shown, the lining cover 11 is also provided with a temperature measuring component 111 and an exhaust pipe 112. The inner cover 12 has a matching area corresponding to the temperature measuring component 111 and a matching opening 122 for the exhaust pipe 112 to pass through. The matching area, the through hole 123, and the matching opening 122 are arranged in the same line.

[0059] The inner cover 12 is typically circular, so positioning the inner cover 12 during installation is a major challenge for both users and assemblers. In this embodiment, the through hole 123 of the inner cover 12 mates with the cooling element 13 of the cover body 1, the mating area mates with the temperature measuring element 111 of the cover body 1, and the mating opening 122 mates with the exhaust pipe 112. These three mating structures are collinear, forming three-point positioning for the installation of the inner cover 12. The user can use these three mating structures as a reference to position the inner cover 12 and then install it onto the cover body 1. This reduces the difficulty of positioning the inner cover 12 and improves the efficiency of its installation.

[0060] Preferably, if Figure 4 As shown, the through hole 123, the matching area and the matching opening 122 are all located on the center line of the inner cover 12, which can optimize the structural layout of the inner cover 12 and facilitate installation and use.

[0061] It should be noted that this embodiment does not limit the coordination mode between the coordination zone and the temperature measuring element 111. In one embodiment, the coordination zone is a closed structure, and the temperature measuring element 111 contacts the coordination zone to indirectly detect the temperature in the cooking cavity by detecting the temperature of the coordination zone. In another embodiment, Figure 2 、 Figure 4 、 Figure 5 As shown, the mating area is provided with an opening 121, and the temperature measuring element 111 extends into the cooking cavity through the opening 121 to directly detect the temperature in the cooking cavity. Preferably, a sealing structure is provided at the opening 121, the through hole 123 and the mating opening 122.

[0062] Preferably, if Figure 2As shown, the outer diameter D of the cooling element 13 satisfies the following conditions: 10mm≤D≤40mm. Since the cooling element 13 is mounted on the lining cover 11 and extends through the inner cover 12 into the cooking cavity, during the pressure cooking process, the cooling element 13 is directly affected by the gas pressure within the pot, thereby applying a vertical upward force to the lining cover 11. This force is ultimately transmitted to the lining cover 11. The force exerted by the cooling element 13 on the lining cover 11 is proportional to the square of the outer diameter of the cooling element 13. If the outer diameter of the cooling element 13 is too large, the force applied to the lining cover 11 will be too great, potentially causing deformation or rupture of the lining cover 11. If the outer diameter of the cooling element 13 is too small, the volume of the internal cooling cavity 131 will be smaller, reducing the contact area between the cooling element 13 and the gas within the cooking cavity, thereby reducing the cooling effect. By setting the outer diameter of the cooling member 13 to 10mm-40mm, while ensuring the contact area between the cooling member 13 and the high-temperature gas in the pot, the force exerted by the cooling member 13 on the lining cover 11 when the pot is pressurized is reduced to a certain extent, thereby ensuring the structural stability of the lining cover 11 and improving its service life.

[0063] Embodiment 2: In this embodiment, the cover body 1 includes a lining cover 11 and an inner cover 12 located below the lining cover 11 , and the cooling cavity 131 is provided in the inner cover 12 .

[0064] The cooling chamber 131 is provided in the inner cover 12. Therefore, in addition to cooling the air in the pot, the cooling chamber 131 can also cool the inner cover 12. On the one hand, due to the large area of the inner cover 12, by cooling the inner cover 12, the inner cover 12 with a lower temperature then contacts the air in the pot over a large area. The use of the low-temperature inner cover 12 to assist in cooling the air in the pot can increase the cooling rate, thereby accelerating the pressure relief and achieving quick opening of the lid. On the other hand, when the temperature of the inner cover 12 is reduced, when the bubbles in the pot rise to the pot cover with the gas, the bubbles can quickly burst at a low temperature, thereby separating the gas and liquid. The liquid falls into the pot under the action of gravity, thereby improving the anti-overflow effect during the exhaust process and preventing the liquid and bubbles from being ejected with the gas, causing contamination of the outer surface of the pot cover.

[0065] In an example of this embodiment, the cooling cavity 131 is located in the front area 17 , so that the cooling cavity 131 can centrally cool the cooking space corresponding to the front area 17 .

[0066] In another embodiment of this embodiment, the area of cooling cavity 131 in front region 17 is larger than that in rear region 16. The location of cooling cavity 131 in both front region 17 and rear region 16 increases the area of cooling cavity 131, covering more area within the cooking cavity. This in turn increases the contact area with the air surrounding the pot, improving heat exchange efficiency and speeding up the cooling process. By increasing the area of cooling cavity 131 in front region 17, the heat exchange area of cooling cavity 131 in front region 17 is larger than that of cooling cavity 131 in rear region 16, allowing for more coolant to enter, resulting in a more effective cooling effect in front region 17.

[0067] In another embodiment of this embodiment, the height of the cooling cavity 131 in the front region 17 is greater than that in the rear region 16. By increasing the height of the cooling cavity 131 in the front region 17, the cooling cavity 131 in the front region 17 has a larger heat exchange area than the cooling cavity 131 in the rear region 16, and more coolant enters, thereby achieving a better cooling effect in the front region 17.

[0068] In this embodiment, the relative positions of the cooling cavity 131 and the inner cover 12 are not limited, and can be one of the following embodiments:

[0069] Embodiment 1: In this embodiment, the water-cooled pot cover assembly further includes a fitting, which is disposed on the lower side of the inner cover 12 and protrudes downward, so that the fitting cooperates with the inner cover 12 to form a cooling cavity 131 .

[0070] The fitting cooperates with the lower side of the inner cover 12 to form a cooling cavity 131, so that the cooling cavity 131 is located on the lower side of the inner cover 12, and can directly contact the air in the pot to cool it, shorten the heat transfer path, and improve the cooling efficiency.

[0071] Example 2: In this embodiment, the cooling chamber 131 is located on the upper side of the inner cover 12, so that the cooling chamber 131 first cools the inner cover 12, and then cools the air inside the pot through the inner cover 12. The cooling chamber 131 can be formed by a mating component that cooperates with the upper side of the inner cover 12, or it can be formed by an independent component and arranged in contact with the upper side of the inner cover 12, which is not limited here.

[0072] As a preferred embodiment of the present invention, Figure 1 、 Figure 2 、 Figure 3 As shown, the water-cooled pot cover assembly further includes a water tank 3 , the distance between the water tank 3 and the connection end 14 is smaller than the distance between the water tank 3 and the opening and closing end 15 , and at least part of the water tank 3 is exposed outside the cover body 1 .

[0073] Water tank 3 is closer to the lid's rotation center, and the lever arm between water tank 3 and the lid's rotation center is shorter. This shifts the lid's structural center of gravity backward, closer to the rotation center. Consequently, the torsion spring and other components that dampen or assist the lid's movement require less torque. Furthermore, the torsion spring is subjected to less stress, making it less susceptible to breakage or damage. This increases its service life and reduces costs. Furthermore, the force exerted by the torsion spring on the lid is more stable, resulting in smoother movement during the lid's flipping and opening process, reducing any shaking. Furthermore, because the lid's center of gravity is closer to the connection end 14, users experience less effort when opening and closing the lid.

[0074] It should be noted that, on the centerline of the pot lid in the front-to-back direction, the connection end 14 is located at one end of the pot lid, and the opening and closing end 15 is located at the other end of the pot lid. The horizontal straight-line distance between the water tank 3 and the connection end 14 is smaller than the horizontal straight-line distance between the water tank 3 and the opening and closing end 15. In other words, the pot lid can be divided into a front area 17 and a rear area 16 using the left and right centerlines as a dividing line. The opening and closing end 15 is located in the front area 17, the connection end 14 is located in the rear area 16, and the water tank 3 is located within the rear area 16, so that the water tank 3 is closer to the connection end 14 than to the center of the pot lid.

[0075] At least part of the water tank 3 is exposed outside the cover 1, allowing the user to visually see the amount of water inside the water tank 3, thereby enabling more timely replenishment of the cooling medium into the water tank 3 and ensuring the normal use of the water cooling function. Furthermore, it facilitates the installation and removal of the water tank 3, further reducing the difficulty of use for the user and improving the user experience.

[0076] This embodiment does not limit the way in which the water tank 3 supplies coolant into the cooling chamber 131. In one embodiment, the water tank 3 is located at a height higher than the cooling chamber 131, so that the coolant in the water tank 3 can flow from the water tank 3 to the cooling chamber 131 under the action of its own gravity, thereby eliminating the use of power components such as the water pump 4, simplifying the structure of the pot cover assembly, and saving costs.

[0077] In another embodiment, Figure 1 、 Figure 2 As shown, the water-cooled pot cover assembly also includes a water pump 4, which connects the water tank 3 and the cooling cavity 131 to pump the liquid in the water tank 3 into the cooling cavity 131, or pump the coolant in the cooling cavity 131 back into the water tank 3.

[0078] The water pump 4 provides power for the coolant in the water tank 3 to flow into the cooling cavity 131, which can accelerate the flow of the coolant and improve the flow efficiency. The existence of the water pump 4 makes the setting position of the water tank 3 more flexible and the position arrangement of each component more reasonable.

[0079] Preferably, if Figure 2As shown, the vertical projection of the water pump 4 is located outside the cooking cavity.

[0080] During the cooking process, the heat in the cooking cavity will radiate to the pot lid, and the heat on the pot lid will be concentrated in the area covered by the projection of the cooking cavity. The water pump 4 is arranged outside this area, which can prevent the heat in the cooking cavity from being directly transferred to the water pump 4, and keep the water pump 4 away from the heat concentration area on the pot lid, effectively reducing the temperature of the water pump 4, making the water pump 4 work at a safe temperature, slowing down the high-temperature aging rate of various components of the water pump 4, and helping to improve the service life and reliability of the water pump 4.

[0081] Specifically, the inner cover 12 cooperates with the pot body to form a cooking cavity, so the water pump 4 is located outside the inner cover 12. Further, the water pump 4 is arranged near the connecting end 14 and is located in the rear area 16 of the cover body 1.

[0082] Preferably, if Figure 2 As shown, at least part of the cooling cavity 131 is located on the side of the cover 1 facing the pot body, and the cooling cavity 131 is a rotating body. Figure 2 As shown, the cooling cavity 131 is a cylindrical structure. Of course, the cooling cavity 131 can also be other shapes, which are not limited here.

[0083] Furthermore, if Figure 2 As shown, a guide tip 132 is provided at the lower end of the cooling cavity 131 to guide the liquid on the outer surface of the cooling cavity 131 to drip.

[0084] The guide tip 132 can guide the condensed water and other liquids on the outer surface of the cooling cavity 131 to flow downward and eventually drip, thereby preventing the condensed water and food soup from accumulating on the outer surface of the cooling cavity 131 for a long time and affecting the heat exchange efficiency between the cooling cavity 131 and the gas in the cooking cavity.

[0085] Preferably, if Figure 2 As shown, the lower end of the outer surface of the cooling cavity 131 is provided with an arc surface, and the lower end of the arc surface constitutes a guide tip 132. Of course, the lower end of the outer surface of the cooling cavity 131 can also be other shapes, such as an inclined surface structure, etc., which is not limited here.

[0086] The present utility model also discloses a pressure cooking appliance, comprising a pot body and the above-mentioned water-cooled pot cover assembly; the water-cooled pot cover assembly and the pot body cooperate to form a cooking cavity, and the pot body or the water-cooled pot cover assembly is provided with a water tank 3, which is connected to the cooling cavity 131.

[0087] Since the cooling volume in the front area 17 is larger, less condensed water is generated at the front end of the pot body when the lid is opened, which can improve the cleanliness of the front end of the pot body and reduce the cleaning pressure of the user.

[0088] The present invention does not limit the placement of the water tank 3. In one embodiment, the water tank 3 is positioned within the pot body to make the lid assembly thinner and lighter, improving the user experience when opening and closing the lid. For example, the water tank 3 can be positioned at the front 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 it from tipping backward. Because the lid and pot body are pivotally connected, a pipeline can be connected to the water pump 4 and the water tank 3 via the connection end 14.

[0089] Anything not described in this utility model can be achieved by adopting or drawing on existing technologies.

[0090] 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.

[0091] 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 water-cooled pot cover assembly, comprising a cover body, wherein the cover body is provided with a cooling cavity communicating with the water-cooling assembly, characterized in that: The cover body has a connecting end and an opening and closing end that are relatively arranged. The connecting end is used to be rotatably connected to the pot body so that the opening and closing end can be flipped around the connection. The cover body has a center line, which divides the pot cover into a rear area and a front area. The opening and closing end is located in the front area, and the connecting end is located in the rear area. The cooling volume of the cooling cavity in the front area is greater than the cooling volume in the rear area.

2. The water-cooled pot cover assembly according to claim 1, characterized in that: The cover body includes a lining cover and an inner cover located below the lining 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 for the cooling member to pass through.

3. The water-cooled pot cover assembly according to claim 2, characterized in that: The inner cover is detachably fixed to the lining cover, and the water-cooled pot cover assembly further comprises a locking ring, which can be rotated relative to the lining cover to lock or unlock the water-cooled pot cover assembly with the pot body. The locking ring forms a avoidance opening, and the cooling element passes through the avoidance opening.

4. The water-cooled pot cover assembly according to claim 2, characterized in that: The lining cover is also provided with a temperature measuring component and an exhaust pipe. The inner cover has a matching area corresponding to the temperature measuring component and a matching opening for the exhaust pipe to pass through. The matching area, the through hole, and the matching opening are collinearly arranged.

5. The water-cooled pot cover assembly according to claim 1, characterized in that: The cover body includes a lining cover and an inner cover located below the lining cover, the cooling cavity is provided in the inner cover, and the cooling cavity is located in the front area; or, The area of the cooling cavity in the front region is larger than that in the rear region; or The height of the cooling chamber in the front region is greater than that in the rear region.

6. The water-cooled pot cover assembly according to claim 5, characterized in that: The water-cooling pot cover assembly further includes a matching piece, which is arranged on the lower side of the inner cover and protrudes downward, so that the matching piece cooperates with the inner cover to form the cooling cavity.

7. The water-cooled pot cover assembly according to claim 1, characterized in that: The water-cooled pot cover assembly further includes a water tank, the distance between the water tank and the connecting end is smaller than the distance between the water tank and the opening and closing end, and at least a portion of the water tank is exposed outside the cover body.

8. The water-cooled pot cover assembly according to claim 7, characterized in that: The water tank is located at a height higher than the cooling chamber; or The water-cooled pot cover assembly further includes a water pump, which is connected to the water tank and the cooling cavity to pump the liquid in the water tank into the cooling cavity.

9. The water-cooled pot cover assembly according to claim 1, characterized in that: At least a portion of the cooling cavity is located on a side of the cover body facing the pot body, and the cooling cavity is a rotating body.

10. A pressure cooking device comprising a pot, characterized in that: It also includes the water-cooled pot cover assembly according to any one of claims 1 to 9; the water-cooled pot cover assembly and the pot body cooperate to form a cooking cavity, the pot body or the water-cooled pot cover assembly is provided with a water tank, and the water tank is connected to the cooling cavity.

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