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, the pot cover comprises a cover body and an inner cover located on the lower side of the cover body, the inner cover and the pot body are matched to form a cooking cavity, the pressure cooking utensil further comprises a water cooling assembly, and the water cooling assembly comprises a water tank and a cooling piece which is arranged on the cover body and protrudes downwards. A cooling cavity is formed in the cooling part and communicated with the water tank, a through hole is formed in the inner cover, and the cooling part penetrates through the through hole and extends into the cooking cavity. After the water tank is connected with the cooling cavity through the pipeline, in subsequent use, no matter a user rotates the inner cover or removes the inner cover, the cooling cavity cannot be separated from the pot cover all the time, the relative position of the cooling cavity and the water tank is always kept fixed, and no relative movement exists between the cooling cavity and the water tank, so that the position of the pipeline is kept stable; and reliable connection is always kept.

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 for pressure relief. Compared to exhaust, water cooling is faster and produces less noise during the process, making it increasingly popular. Cooking appliances using water cooling typically have a water-cooling chamber in the lid, which cools the pot by passing cooling liquid through the chamber to relieve pressure.

[0004] The water-cooling chamber is usually located on the inner cover, inside the inner cover, or formed by other components in conjunction with the inner cover. However, since the inner cover is in direct contact with the cooking environment inside the pot, liquid or food residue will inevitably adhere to the inner cover, causing contamination. Therefore, some cooking utensils have a detachable inner cover to facilitate user cleaning.

[0005] However, after removing the inner cover, the water-cooling pipes on the water-cooling chamber and the pot lid are disconnected. When installing the inner cover, the water-cooling pipes need to be connected to the water-cooling chamber. This is not only difficult for the customer to operate, but if the pipes are not properly connected, coolant leakage will occur and the water cooling effect will be reduced. Furthermore, frequent connection and removal will cause the connection between the water-cooling pipes and the water-cooling chamber to deteriorate, also posing the risk of coolant leakage.

[0006] In addition, for pressure cooking appliances, it is necessary to control the rotation of at least a part of the pot lid before and after cooking to achieve locking and unlocking of the pot lid and the pot body. However, some models have a rotatable inner lid. When the inner lid rotates, the position or angle of the water-cooling chamber also changes, causing the water-cooling pipeline to be pulled or bent, affecting the service life of the water-cooling pipeline. Over time, there is still a risk of damage to the water-cooling pipeline or damage to the connection seal between the water-cooling chamber and the water-cooling chamber, leading to the risk of coolant leakage. Utility Model Content

[0007] The utility model provides an exhaust-free pressure cooking appliance to solve the problem that a water-cooling chamber is provided in an inner cover, and the cooling chamber is removed when the inner cover is installed or removed, so the water-cooling pipeline needs to be frequently connected, which affects the connection reliability and sealing; and the water-cooling pipeline moves or deforms during the rotation of the inner cover, which also affects the connection sealing.

[0008] The technical solution adopted by this utility model is:

[0009] A vent-free pressure cooking device comprises a pot body and a pot lid. The pot lid comprises a lid body and an inner cover located on the lower side of the lid body. The inner cover and the pot body cooperate to form a cooking cavity. The pressure cooking device also comprises a water cooling assembly. The water cooling assembly comprises a water tank and a cooling member disposed on the lid body and protruding downward. The cooling member has a cooling cavity inside, which is connected to the water tank. The inner cover is provided with a through hole, and the cooling member extends through the through hole into the cooking cavity.

[0010] The pressure cooking device of the present invention also has the following additional technical features:

[0011] The outer diameter D of the cooling element satisfies: 10mm≤D≤40mm.

[0012] The cooling member is arranged at the center of the inner cover; or, the cooling member is arranged near the front end of the inner cover so that the distance between the cooling member and the front end of the inner cover is smaller than the distance between the cooling member and the rear end of the inner cover.

[0013] The inner cover is detachably connected to the cover body, a sealing member is provided at the through hole, and the outer peripheral side of the cooling member abuts against the sealing member for sealing.

[0014] The cover body 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 and the matching opening are respectively located on both sides of the through hole.

[0015] The mating area, the through hole and the mating opening are all located on the center line of the inner cover.

[0016] The pot cover also includes a locking ring, which can rotate relative to the cover body to lock or unlock the pot cover and the pot body. The locking ring forms an escape opening, and the cooling element passes through the escape opening.

[0017] The water tank is arranged on the pot body; or the pot lid has a connecting end and an opening and closing end, the connecting end is rotatably connected to the pot body, and the opening and closing end can be flipped around the connection to open or cover the cooking cavity, the water tank is arranged on the pot lid, and 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.

[0018] The water cooling assembly also includes a water pump arranged on the pot cover, and the vertical projection of the water pump is located outside the cooking cavity.

[0019] The lower end of the cooling element is provided with a guide tip to guide the liquid on the surface of the cooling element to drip.

[0020] Due to the adoption of the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0021] 1. In the present invention, a cooling element is mounted on the lid, with the cooling cavity located within the cooling element. The lower end of the cooling element extends through a through-hole in the inner lid into the cooking cavity, directly contacting the high-temperature gas within the cooking cavity. This cools the cooking cavity and achieves rapid pressure relief. Because the cooling element is mounted on the lid, even if the inner lid rotates relative to the lid, the lid remains stationary. This ensures that the cooling element and the water-cooling pipe connecting it remain stationary, maintaining a stable connection and seal between the water-cooling pipe and the cooling cavity, improving pipe connection reliability.

[0022] Furthermore, when the inner cover is removed from the cover body, the cooling element remains attached to the cover body and does not change 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 cooling liquid leakage and ensuring cooling efficiency.

[0023] Furthermore, by using water cooling to reduce the pressure, there is no need to exhaust by opening the exhaust valve 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 no liquid is sprayed out to cause pollution to the pot lid, which greatly improves the user experience.

[0024] 2. As a preferred embodiment of the present invention, the outer diameter D of the cooling element satisfies the following conditions: 10mm≤D≤40mm. Since the cooling element is mounted on the lid and extends through the inner lid into the cooking cavity, during pressure cooking, it is directly subjected to the pressure from the pot, exerting a vertical upward force on the lid. This force is ultimately transmitted to the lid itself, and the force exerted by the cooling element on the lid is proportional to the square of its outer diameter. If the outer diameter of the cooling element is too large, the force exerted on the lid may be excessive, potentially causing deformation or rupture. If the outer diameter of the cooling element is too small, the volume of the internal cooling cavity is reduced, reducing the contact area between the cooling element and the gas in the cooking cavity and reducing the cooling effect. By setting the outer diameter of the cooling element between 10mm and 40mm, while ensuring the contact area between the cooling element and the high-temperature gas in the pot, the force exerted by the cooling element on the lid during pressure cooking is reduced to a certain extent, thereby ensuring the structural stability of the lid and improving its service life.

[0025] 3. As a preferred embodiment of the present invention, the cover body 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 and the matching port are respectively located on both sides of the through hole. Since the inner cover can be removed from the cover body, each time the user removes the inner cover and cleans it, the inner cover needs to be installed on the cover body again before cooking can be carried out. The inner cover is usually circular, so when installing the inner cover, the positioning of the inner cover is a major problem that bothers the user. 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 matching port and the matching area are respectively located on both sides of the through hole, so that the three sets of matching structures constitute the three-point positioning of the inner cover installation. The user can use the three sets 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 inner cover installation.

[0026] 4. As a preferred embodiment of the present invention, the pot lid has a connecting end and an opening and closing end. The connecting end is rotatably connected to the pot body, and the opening and closing end can be rotated about the connection to open or close the cooking cavity. A water tank is disposed on the pot lid, and 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. The water tank is closer to the pot lid's rotation center, and the lever arm between the water tank and the pot lid's rotation center is shorter. This shifts the pot lid's structural center of gravity rearward, closer to the rotation center. This reduces the torsion force required of components such as torsion springs that dampen or assist the pot lid's movement. Furthermore, the torsion springs are subjected to less stress, making them less susceptible to breakage or damage, thereby increasing their service life and reducing costs. Furthermore, the force exerted by the torsion springs on the pot lid is more stable, resulting in smoother movement during the pot lid's opening and closing, reducing any shaking. Furthermore, because the pot lid's center of gravity is closer to the connecting end, users experience less effort when opening and closing the lid.

[0027] 5. As a preferred embodiment of the present invention, the water cooling assembly further includes a water pump mounted on the pot lid, with its vertical projection located outside the cooking cavity. During cooking, heat from the cooking cavity radiates onto the pot 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 concentration zone on the pot 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 increasing its service life and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] 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:

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

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

[0031] Figure 3 for Figure 2 A cross-sectional view of the middle pot lid from another perspective;

[0032] Figure 4 This is a structural schematic diagram of the inner cover in one embodiment of the present invention;

[0033] Figure 5 This is a bottom view of a pot cover according to one embodiment of the present invention.

[0034] in:

[0035] 1 pot cover; 11 cover body; 111 temperature measuring element; 112 exhaust pipe; 12 inner cover; 121 opening; 122 matching opening; 123 through hole; 13 locking ring; 131 cover teeth; 14 cooling element; 141 cooling cavity; 142 guide tip; 15 connecting end; 16 opening and closing end;

[0036] 2 water tanks;

[0037] 3 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 1 、 Figure 2 As shown, a pressure cooking device includes a pot body and a pot cover 1, the pot cover 1 includes a cover body 11 and an inner cover 12 located on the lower side of the cover body 11, the inner cover 12 cooperates with the pot body to form a cooking cavity, the pressure cooking device also includes a water cooling assembly, the water cooling assembly includes a water tank 2 and a cooling member 14 arranged on the cover body 11 and protruding downward, the cooling member 14 has a cooling cavity 141 inside, the cooling cavity 141 is connected to the water tank 2, the inner cover 12 is provided with a through hole 123, the cooling member 14 extends into the cooking cavity through the through hole 123.

[0044] 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.

[0045] In the present invention, cooling element 14 is mounted on lid 11, with cooling cavity 141 located within cooling element 14. The lower end of cooling element 14 extends through through-hole 123 of inner lid 12 into the cooking cavity, directly contacting the high-temperature gas within the cooking cavity. This cools the cooking cavity and achieves rapid pressure relief. Because cooling element 14 is mounted on lid 11, even if inner lid 12 rotates relative to lid 11, lid 11 remains stationary. This ensures that cooling element 14 and the water-cooling pipeline connecting to cooling element 14 remain stationary, maintaining a stable connection and seal between the water-cooling pipeline and cooling cavity 141, improving pipeline connection reliability.

[0046] Furthermore, when the inner cover 12 is removed from the cover body 11, the cooling element 14 remains on the cover body 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 141 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 141 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.

[0047] In summary, after the water tank 2 of the present invention is connected to the cooling chamber 141 through a pipeline, in subsequent use, no matter the user rotates the inner cover 12 or removes the inner cover 12, the cooling chamber 141 will never be separated from the pot cover 1, and the relative position with the water tank 2 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.

[0048] Preferably, if Figure 2 As shown, the cooling element 14 is a rotating body. In a specific embodiment, as shown in FIG. Figure 2 As shown, the cooling member 14 is a cylindrical structure. Of course, the cooling member 14 can also be other shapes, which are not limited here.

[0049] Furthermore, if Figure 2 As shown, the outer diameter D of the cooling member 14 satisfies: 10 mm ≤ D ≤ 40 mm.

[0050] Because cooling element 14 is mounted on lid 11 and extends through inner lid 12 into the cooking cavity, during pressure cooking, cooling element 14 is directly affected by the pressure from the pot, exerting a vertical upward force on lid 11. This force is ultimately transmitted to lid 11. The force exerted by cooling element 14 on lid 11 is proportional to the square of its outer diameter. If the outer diameter of cooling element 14 is too large, the force exerted on lid 11 is excessive, potentially causing deformation or rupture of lid 11. However, if the outer diameter of cooling element 14 is too small, the volume of cooling cavity 141 within it is reduced, reducing the contact area between cooling element 14 and the gas in the cooking cavity and reducing the cooling effect. By setting the outer diameter of cooling element 14 between 10 mm and 40 mm, while ensuring the contact area between cooling element 14 and the high-temperature gas in the pot, the force exerted by cooling element 14 on lid 11 during pressure cooking is reduced to a certain extent, ensuring the structural stability of lid 11 and improving its service life.

[0051] It should be noted that although the present invention sets the cooling member 14 on the cover 11 so that the rotation and removal of the inner cover 12 will not affect the position of the cooling member 14 and the cooling cavity 141, the present invention does not limit whether the inner cover 12 is rotatable or removable.

[0052] In a preferred embodiment, Figure 1 、 Figure 2 、 Figure 4 As shown, the inner lid 12 is detachably connected to the lid body 11, and a seal is provided at the through hole 123. The outer periphery of the cooling element 14 abuts against the seal to form a seal. By providing a detachable structure for the inner lid 12, the user can easily remove the inner lid 12 for cleaning, thereby reducing the difficulty of cleaning the inner lid 12. The provision of the seal not only achieves a seal between the cooling element 14 and the edge of the through hole 123, preventing gas, liquid, etc. in the cooking cavity from entering the interior of the pot lid 1, but also improves the stability of the inner lid 12 and reduces the shaking of the inner lid 12 by the friction generated by the compression of the seal.

[0053] Furthermore, if Figure 2 、 Figure 4 As shown, the cover body 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 and the matching opening 122 are respectively located on both sides of the through hole 123.

[0054] Since the inner cover 12 can be removed from the cover body 11, each time the user removes the inner cover 12 and cleans it, the user needs to reinstall the inner cover 12 on the cover body 11 before cooking. The inner cover 12 is usually circular, so when installing the inner cover 12, the positioning of the inner cover 12 is a major problem that bothers the user. In this embodiment, the through hole 123 of the inner cover 12 cooperates with the cooling part 14 of the cover body 11, the matching area cooperates with the temperature measuring part 111 of the cover body 11, and the matching port 122 cooperates with the exhaust pipe 112. The matching port 122 and the matching area are respectively located on both sides of the through hole 123, so that the three groups of matching structures constitute the three-point positioning of the installation of the inner cover 12. The user can use the three groups of matching structures as a reference to position the inner cover 12, and then install the inner cover 12 to the cover body 11, thereby reducing the difficulty of positioning the inner cover 12 and improving the installation efficiency of the inner cover 12.

[0055] In one embodiment, the line connecting the through hole 123, the matching area and the matching opening 122 is a triangle. In order to improve the positioning accuracy. In another embodiment, as Figure 4 As shown, the mating area, through hole 123 and mating opening 122 are all located on the center line of the inner cover 12. The mating area, through hole 123 and mating opening 122 are collinear and 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.

[0056] 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 4 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.

[0057] Of course, the inner cover 12 may also be configured to be non-detachably fixed to the cover body 11 , which is not limited here.

[0058] In addition, the locking and unlocking method of the pot cover 1 and the pot body can be one of the following embodiments:

[0059] Implementation method 1: In this implementation method, Figure 1 、 Figure 2 、 Figure 3 As shown, the pot cover 1 further includes a locking ring 13, which can rotate relative to the cover body 11 to lock or unlock the pot cover 1 and the pot body. The locking ring 13 forms an escape opening, and the cooling member 14 passes through the escape opening.

[0060] Specifically, such as Figure 5As shown, the locking ring 13 is provided with a cover tooth 131, and the pot body is provided with a pot tooth. The locking ring 13 can rotate relative to the lid body 11 to lock or unlock the pot tooth and the cover tooth 131, thereby locking or unlocking the pot lid 1 and the pot body. The locking ring 13 forms a clearance hole, and the cooling member 14 passes through the clearance hole, so that the inner lid 12 and the lid body 11 do not rotate with the locking ring 13, and the relative position of the cooling member 14 and the inner lid 12 remains unchanged.

[0061] Embodiment 2: In this embodiment, the inner lid 12 is provided with cover teeth, and the pot body is provided with pot teeth. The inner lid 12 can rotate relative to the lid body 11 to lock or unlock the pot teeth with the cover teeth, thereby locking or unlocking the pot lid 1 and the pot body. Preferably, the cooling element 14 is located at the center of the inner lid 12 to ensure that the relative position of the inner lid 12 and the pot body does not change during rotation, thereby improving the sealing between the two.

[0062] As a preferred embodiment of the present invention, Figure 2 、 Figure 4 、 Figure 5 As shown, the cooling member 14 is disposed corresponding to the center of the inner cover 12 .

[0063] The inner lid 12 and the pot body form the cooking cavity, so the center of the inner lid 12 corresponds to the center of the cooking cavity. During cooking, heat is concentrated in the center of the cooking cavity. Therefore, the cooling element 14 is positioned there to create a significant temperature difference between the cooling element 14 and the cooking cavity, significantly improving heat exchange efficiency and achieving rapid cooling. Furthermore, when the high-temperature steam in the cooking cavity comes into contact with the cooler cooling element 14, the steam quickly liquefies into condensed water, which then adheres to the surface of the cooling element 14. As the condensed water on the surface of the cooling element 14 gradually accumulates, it drips from the surface into the cooking cavity. The central location of the cooling element 14 ensures that any condensed water that drips from the cooling element 14 quickly dissolves into the broth. This ensures a more even mixing of the broth and condensed water, preventing a thinner broth on one side and a thicker one on the other, which could result in a different taste for the food. It also facilitates the reuse of the condensed water, minimizing broth loss.

[0064] As another preferred embodiment of the present invention, the cooling member 14 is arranged close to the front end of the inner cover 12 so that the distance between the cooling member 14 and the front end of the inner cover 12 is smaller than the distance between the cooling member 14 and the rear end of the inner cover 12 .

[0065] It should be noted that the front end of the inner cover 12 corresponds to the front end of the pot cover 1, and the rear end of the inner cover 12 corresponds to the rear end of the pot cover 1. When using the pressure cooking appliance, the side facing the user is the front end, and the side away from the user is the rear end.

[0066] When the user opens the lid after cooking, due to habit, they usually open the front end of the lid 1 first, and then lift the entire lid 1 upwards. After cooking, a large amount of high-temperature gas and steam still accumulates in the cooking cavity. Therefore, when the front end of the lid 1 is opened, a large amount of high-temperature steam will flow out from the gap between the front end of the lid 1 and the pot body, which not only affects the user's vision but also poses a risk of burns.

[0067] By arranging the cooling element 14 near the front end, during the water cooling process, the cooling element 14 can cool the area in the cooking cavity corresponding to the front end of the pot lid 1 more concentratedly, greatly reducing the amount and temperature of steam at the front end of the cooking cavity, and then reducing the temperature and amount of the gushing steam when the user opens the lid, thereby improving the user experience.

[0068] For a one-piece pressure cooking appliance, the pot lid 1 is rotatably connected to the pot body so that the pot lid 1 can be flipped up and down to open and close the lid, wherein one end of the pot lid 1 connected to the pot body is the rear end of the pot lid 1, and the other end opposite thereto constitutes the front end of the pot lid 1.

[0069] The present invention does not limit the location of the water tank 2. In one embodiment, the water tank 2 is disposed on the pot body to make the pot cover 1 thinner and lighter, thereby improving the user's experience of opening and closing the cover 11.

[0070] In a preferred embodiment, Figure 1 、 Figure 2 、 Figure 5 As shown, the pot cover 1 has a connecting end 15 and an opening and closing end 16. The connecting end 15 is rotatably connected to the pot body, and the opening and closing end 16 can be flipped around the connection to open or cover the cooking cavity. The water tank 2 is arranged on the pot cover 1, and the distance between the water tank 2 and the connecting end 15 is smaller than the distance between the water tank 2 and the opening and closing end 16.

[0071] It should be noted that the connection end 15 and the opening and closing end 16 are disposed at opposite ends of the pot lid 1. Specifically, on the centerline of the pot lid 1 in the front-to-back direction, the connection end 15 is located at one end of the pot lid 1, and the opening and closing end 16 is located at the other end of the pot lid 1. The horizontal straight-line distance between the water tank 2 and the connection end 15 is smaller than the horizontal straight-line distance between the water tank 2 and the opening and closing end 16. 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 16 located in the front area, the connection end 15 located in the rear area, and the water tank 2 located in the rear area, so that the water tank 2 is closer to the connection end 15 than to the center of the pot lid 1.

[0072] The water tank 2 is closer to the rotation center of the pot lid 1, and the lever arm between the water tank 2 and the rotation center of the pot lid 1 is shorter. This, on the one hand, shifts the structural center of gravity of the pot lid 1 backward, closer to the rotation center. Therefore, the torsion spring and other components used to dampen or assist the movement of the pot lid 1 require less torque. At the same time, the torsion spring is subjected to less stress, making it less likely to break or damage, thereby increasing its service life and saving 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 flipping and opening, and reducing the shaking of the pot lid 1. At the same time, because the center of gravity of the pot lid 1 is closer to the connection end 15, the user can operate the lid with less effort.

[0073] Preferably, if Figure 1 、 Figure 2 As shown, at least part of the water tank 2 is exposed outside the pot lid 1, so that the user can intuitively see the water level inside the water tank 2, thereby being able to replenish the cooling medium into the water tank 2 more promptly, ensuring the normal use of the water cooling function. It also facilitates the installation and removal of the water tank 2, further reducing the difficulty of use for the user and improving the user experience.

[0074] Of course, in other embodiments, the pot cover 1 can also be a separate structure from the pot body, that is, the pot cover 1 can be removed from the pot body. In this case, if the water tank 2 is set on the pot body, coupling structures can be provided on the pot cover 1 and the pot body respectively to achieve the connection or disconnection of the water channel on the pot cover 1 and the water channel on the pot body.

[0075] Preferably, if Figure 2 As shown, the water cooling assembly further includes a water pump 3 provided on the pot cover 1 , and the vertical projection of the water pump 3 is located outside the cooking cavity.

[0076] 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 3 is arranged outside this area, which can prevent the heat in the cooking cavity from being directly transferred to the water pump 3. The water pump 3 is kept away from the heat concentration area on the pot cover 1, effectively reducing the temperature of the water pump 3, making the water pump 3 work at a safe temperature, slowing down the high-temperature aging rate of various components of the water pump 3, and helping to improve the service life and reliability of the water pump 3.

[0077] Specifically, the inner cover 12 cooperates with the pot body to form a cooking cavity, so the water pump 3 is located outside the inner cover 12 .

[0078] In a preferred embodiment, Figure 2 As shown, a guide tip 142 is provided at the lower end of the cooling member 14 to guide the liquid on the surface of the cooling member 14 to drip.

[0079] The guide tip 142 can guide the condensed water and other liquids on the surface of the cooling element 14 to flow downward and eventually drip, thereby preventing the condensed water and food soup from accumulating on the cooling element 14 for a long time, affecting the heat exchange efficiency between the cooling element 14 and the gas in the cooking cavity, and ensuring the cleanliness of the cooling element 14.

[0080] Preferably, if Figure 2 As shown, the lower end of the cooling member 14 is provided with an arc surface, and the lower end of the arc surface forms a guide tip 142. Of course, the lower end of the cooling member 14 can also be other shapes, such as an inclined surface structure, etc., which is not limited here.

[0081] Anything not described in this utility model can be achieved by adopting or drawing on existing technologies.

[0082] 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.

[0083] 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 device comprising a pot body and a pot cover, wherein the pot cover comprises a cover body and an inner cover located below the cover body, wherein the inner cover cooperates with the pot body to form a cooking cavity, characterized in that: The pressure cooking appliance also includes a water cooling assembly, which includes a water tank and a cooling member arranged on the cover and protruding downward. The cooling member has a cooling cavity inside, which is connected to the water tank. The inner cover is provided with a through hole, and the cooling member extends into the cooking cavity through the through hole.

2. The exhaust-free pressure cooking device according to claim 1, characterized in that: The outer diameter D of the cooling element satisfies: 10 mm ≤ D ≤ 40 mm.

3. The exhaust-free pressure cooking appliance according to claim 1, wherein: The cooling element is arranged corresponding to the center of the inner cover; or, The cooling member is arranged close to the front end of the inner cover so that the distance between the cooling member and the front end of the inner cover is smaller than the distance between the cooling member and the rear end of the inner cover.

4. The exhaust-free pressure cooking appliance according to claim 1, wherein: The inner cover is detachably connected to the cover body, a sealing member is provided at the through hole, and the outer peripheral side of the cooling member abuts against the sealing member for sealing.

5. The exhaust-free pressure cooking appliance according to claim 4, characterized in that: The cover body 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 and the matching opening are respectively located on both sides of the through hole.

6. The exhaust-free pressure cooking appliance according to claim 5, characterized in that: The matching area, the through hole and the matching opening are all located on the center line of the inner cover.

7. The exhaust-free pressure cooking appliance according to claim 1, wherein: The pot cover also includes a locking ring, which can rotate relative to the cover body to lock or unlock the pot cover and the pot body. The locking ring forms a avoidance opening, and the cooling element passes through the avoidance opening.

8. The exhaust-free pressure cooking appliance according to claim 1, wherein: The water tank is arranged on the pot body; or, The pot cover has a connecting end and an opening and closing end, the connecting end is rotatably connected to the pot body, and the opening and closing end can be flipped around the connection to open or cover the cooking cavity. The water tank is arranged on the pot cover, and 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.

9. The exhaust-free pressure cooking appliance according to claim 1, wherein: The water cooling assembly further includes a water pump disposed on the pot cover, and a 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 lower end of the cooling element is provided with a guide tip to guide the liquid on the surface of the cooling element to drip.

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