Pressure cooking utensil

Abstract

The pressure cooking utensil comprises a pot body and a pot cover, the pot cover comprises a face cover and an inner cover, the face cover is provided with a water tank, the inner cover and the face cover are matched to form a cooling cavity, the top face of the face cover is provided with an installation groove used for installing the water tank, and the water tank comprises a tank body with a water outlet and a water outlet switch arranged at the water outlet. The pot cover or the water tank is provided with a trigger part, the trigger part can drive the water outlet switch to open the water outlet, a slow flow structure is further arranged between the water tank and the cooling cavity and provided with a blocking part corresponding to the water outlet and a slow flow opening, and the water outlet communicates with the cooling cavity through the slow flow opening so as to slow down the flow speed of liquid entering the cooling cavity. After flowing out of the water outlet and before entering the cooling cavity, water is blocked by the flow slowing structure and enters the cooling cavity at a small flow rate and flow speed. The water can be in full contact with the inner cover, so that the water can be quickly vaporized under the high-temperature action of the inner cover, and the probability that the water is accumulated on the surface of the inner cover is reduced.

Description

Technical Field

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

[0002] Traditional cooking appliances release pressure by venting after pressure cooking. However, this method cannot release pressure continuously for long periods of time, which can cause the pot to overflow. It requires intermittent venting, resulting in high costs and slow pressure relief, which hinders users from opening the lid. Furthermore, the venting process is accompanied by loud noise, resulting in a poor user experience. In recent years, some pressure cooking appliances have adopted the use of water tanks. After pressure cooking, the water in the tank is pumped into the inner part of the lid, cooling the metal inner cover with water to achieve rapid pressure relief.

[0003] Cooking appliances with water-cooling and pressure-reducing functions generally have two water-cooling structures for the pot lid. One approach involves adding a cooling component to the pot lid, creating an independent water-cooling chamber. This chamber is then fed with a cooling medium to cool the inner lid. In this approach, the cooling medium flows within the chamber and does not come into direct contact with the inner lid. This results in a longer heat transfer path between the cooling medium and the inner lid, resulting in lower cooling efficiency and slower pressure reduction.

[0004] Another approach is to have the water-cooling medium flow directly onto the surface of the inner lid, where it comes into direct contact with the inner lid to cool it down. This approach allows the inner lid to directly come into contact with the water-flowing medium for heat exchange, resulting in higher cooling efficiency. However, some of the water-cooling medium that flows onto the inner lid surface vaporizes due to the heat, while some remains on the inner lid surface. When too much water-cooling medium accumulates on the lid surface, it can overflow into the interior, affecting the electrical components inside. It can also easily contaminate the interior of the lid, making it difficult for users to clean. Over time, dirt accumulates inside the lid and emits an odor, affecting the user experience. Furthermore, water accumulates on the inner lid surface, significantly slowing its vaporization rate, resulting in lower heat absorption efficiency and poor cooling and pressure reduction effects. Furthermore, the accumulated water will heat up due to the inner lid, further reducing the cooling rate of the inner lid. Utility Model Content

[0005] The utility model provides a pressure cooking appliance to solve the problem that the amount of water-cooling medium transported by the water tank to the surface of the inner cover is too large, which causes the water-cooling medium to be easily accumulated on the surface of the inner cover and overflow into the inside of the pot cover, and the existing water tank water outlet structure is complex, the cost is high, and the water outlet speed is difficult to control.

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

[0007] A pressure cooking appliance comprises a pot body and a pot cover, the pot cover comprises an outer cover and an inner cover, the outer cover is provided with a water tank, the inner cover and the outer cover cooperate to form a cooling chamber, the top surface of the outer cover is provided with a mounting groove for mounting the water tank, the water tank comprises a box body with a water outlet and a water outlet switch arranged at the water outlet, the pot cover or the water tank is provided with a trigger part, the trigger part can drive the water outlet switch to open the water outlet, a slow flow structure is further provided between the water tank and the cooling chamber, the slow flow structure has a blocking part corresponding to the water outlet, and a slow flow outlet, the water outlet is connected to the cooling chamber through the slow flow outlet to slow down the flow rate of the liquid entering the cooling chamber.

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

[0009] The water outlet is arranged on the bottom wall of the box body, and the trigger part includes a trigger protrusion arranged on the bottom wall of the mounting groove and extending upward. The box body can move up and down relative to the cover so that the trigger protrusion pushes the water outlet switch to open the water outlet.

[0010] One of the inner wall of the mounting groove and the outer wall of the box body is provided with a matching slide groove, and the other one is provided with a matching protrusion. The matching slide groove extends along the circumference of the box body and has a high position and a low position. In the axial direction of the box body, there is a height difference between the high position and the low position. The box body can be rotated relative to the face cover to switch the matching protrusion between the high position and the low position. When the matching protrusion is in the high position, the water outlet switch blocks the water outlet. When the matching protrusion is in the low position, the protrusion is triggered to push the water outlet switch to open the water outlet.

[0011] The matching slot is further provided with a locking rib protruding toward the inside of the matching slot at the high position and / or the low position. The locking rib can cooperate with the matching protrusion to limit the matching protrusion to the high position or the low position.

[0012] A sealing member is provided at the upper end of the water outlet switch, and the sealing member is located inside the box body. The water tank also includes an elastic member, and the elastic member acts on the water outlet switch to apply a downward thrust to the water outlet switch.

[0013] The installation groove has a bottom wall, the bottom wall forms a slow flow structure, the bottom wall is provided with a slow flow outlet, and the slow flow outlet is staggered with the water outlet.

[0014] The water outlet corresponds to the center of the installation groove, the barrier part is arranged at the center of the bottom wall, and the slow flow structure also includes a connecting arm extending outward from the barrier part to the side wall of the installation groove. There are multiple connecting arms and they are arranged at intervals along the circumference of the installation groove, and a slow flow outlet is formed between two adjacent connecting arms.

[0015] The upper end of the water outlet switch extends out of the box to form a trigger part, and a seal is provided at the lower end of the water outlet switch. The seal is located below the box, and the water outlet switch can move up and down so that the seal blocks or opens the water outlet; the projection of the seal toward the box covers the water outlet, so that the seal can block the liquid flowing out of the water outlet, and the seal constitutes a slow flow structure.

[0016] The surface cover includes a cover body and a cover plate. The cover body is provided with an opening. The cover plate is detachably fixed to the opening so that the cover plate and the inner cover cooperate to form a cooling cavity. The cover plate is provided with an air outlet connected to the cooling cavity.

[0017] The top surface of the inner cover is provided with a downwardly concave matching groove, and the surface cover cooperates with the matching groove to form a 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 the present invention, the water tank is mounted in the mounting groove of the cover. When water cooling and pressure reduction are being performed, the trigger unit drives the water outlet switch to open the water outlet, allowing the water in the tank to flow out. At the same time, a slow-flow structure is provided between the water outlet and the cooling chamber. After the water flows out of the water outlet, before entering the cooling chamber, it will first flow to the slow-flow structure. Then, the water will flow through the slow-flow structure and then pass through the blocking effect of the slow-flow structure's barrier portion, which will reduce the flow rate of the water and allow it to enter the cooling chamber at a smaller flow rate and flow rate. This greatly reduces the amount of water that flows to the surface of the inner cover per unit time, allowing the water to fully contact the inner cover and quickly vaporize under the high temperature of the inner cover to form water vapor, thereby reducing the probability of water accumulating on the surface of the inner cover. At the same time, the water vaporization efficiency on the surface of the inner cover is improved, allowing the liquid water to quickly vaporize to form water vapor. During the vaporization process, it will absorb heat, thereby improving the cooling and pressure reduction efficiency of the inner cover and achieving rapid pressure reduction.

[0020] Furthermore, because the slow-flow structure is placed separately between the water tank and the cooling chamber, water flow is blocked outside the water tank, rather than at the water outlet. This eliminates the need for structural design of the water outlet and water outlet switch, lowering the requirements for water velocity and flow rate. This simplifies the water tank structure and reduces the impact of assembly errors on water flow rate. Even if the user frequently installs and removes the water tank, a reliable water flow rate can be maintained, thereby ensuring the water cooling pressure reduction effect.

[0021] 2. As a preferred embodiment of the present invention, the water outlet is located on the bottom wall of the housing, and the trigger portion includes an upwardly extending trigger protrusion disposed on the bottom wall of the mounting slot. The housing is movable up and down relative to the cover, causing the trigger protrusion to push against the water switch to open the water outlet. The water outlet and the water switch are located at the bottom of the housing, and the trigger protrusion protrudes upward to actuate the water switch. After the water tank is installed, the user can control the up and down movement of the housing to open or close the water outlet as needed, thereby allowing water to flow to the inner cover within a specific timeframe of the pressure cooking appliance (e.g., during the pressure reduction phase after cooking). When the housing is in its initial position, the trigger protrusion and the water switch are not in contact, or even if they are in contact, the upward push force exerted by the trigger protrusion on the water switch is insufficient to open the water outlet, resulting in the water outlet being closed. As the housing moves downward, the force exerted by the trigger protrusion on the water switch gradually increases, eventually pushing the water switch upward, opening the water outlet, and allowing water within the housing to flow out of the water outlet.

[0022] 3. As a preferred embodiment of the present invention, one of the inner sidewall of the mounting groove and the outer sidewall of the housing is provided with a mating groove, and the other is provided with a mating protrusion. The mating groove extends along the circumference of the housing and has a high position and a low position. In the axial direction of the housing, there is a height difference between the high position and the low position. The housing can rotate relative to the cover to switch the mating protrusion between the high and low positions. When the mating protrusion is in the high position, the water outlet switch blocks the water outlet. When the mating protrusion is in the low position, the trigger protrusion pushes the water outlet switch to open the water outlet. In this embodiment, the water outlet is opened or closed by rotating the housing. The rotational operation is not only simpler and more convenient for the user, but also effectively prevents accidental user contact compared to the press-to-discharge operation method, thereby improving reliability. In addition, the mating groove and the mating protrusion on the inner wall of the mounting groove and the outer wall of the housing cooperate to convert the rotational motion of the housing into vertical motion of the housing when the housing and the cover rotate relative to each other, so that the trigger protrusion can push up or down the water outlet switch.

[0023] 4. As a preferred embodiment of the present invention, the installation groove has a bottom wall, the bottom wall constitutes a slow flow structure, the bottom wall is provided with a slow flow outlet, and the slow flow outlet is staggered with the water outlet. When the water in the box flows out from the water outlet, since the bottom wall is directly opposite to the water outlet, the water flows to the bottom wall of the installation groove, is blocked by the bottom wall, and cannot continue to flow downward into the cooling cavity, but flows in the installation groove, and then flows down through the slow flow outlet staggered with the water outlet. In this way, not only can a certain flow blocking effect be exerted on the water flowing out of the water outlet, slowing down the flow rate and flow into the cooling cavity, but the water can also be temporarily gathered in the installation groove, thereby continuously flowing down from the slow flow outlet, so that the water flows into the cooling cavity evenly and stably.

[0024] 5. As a preferred embodiment of the present invention, the face cover includes a cover body and a cover plate. The cover body is provided with an opening. The cover plate is detachably fixed to the opening so that the cover plate cooperates with the inner cover to form a cooling chamber. The cover plate is provided with an air outlet connected to the cooling chamber. When the cover plate is not installed, the cooling chamber is exposed to the outside, and the user can directly wipe and clean the inside of the cooling chamber. At the same time, the cover plate can also be used as a mounting bracket for the water tank. By fixing the water tank to the cover plate and then installing the cover plate to the cover body, the water tank can form a component with the cover plate and be assembled and disassembled together, thereby reducing the difficulty of assembly and disassembly for the user. In addition, the detachable design of the cover plate allows the user to remove the cover plate for cleaning separately, reducing the cleaning pressure and helping to ensure the cleanliness of the cooling chamber. In addition, the air outlet and other structures are provided on the cover plate, thereby reducing the difficulty of processing and ensuring the structural unity and aesthetics of the cover body. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0026] Figure 1 This is a cross-sectional view of a pot cover according to one embodiment of the present invention;

[0027] Figure 2 This is an exploded view of the structure of a partial area of the cover and the water tank in one embodiment of the present invention;

[0028] Figure 3 This is a cross-sectional view of a water tank and a portion of the cover according to one embodiment of the present invention, wherein the water outlet is in a closed state;

[0029] Figure 4 This is a cross-sectional view of a water tank and a portion of the cover according to an embodiment of the present invention, wherein the water outlet is in an open state;

[0030] Figure 5 This is a cross-sectional view of a box body according to one embodiment of the present invention;

[0031] Figure 6 This is a structural diagram of a cover plate in one embodiment of the present invention;

[0032] Figure 7 This is a cross-sectional view of a water tank according to another embodiment of the present invention;

[0033] Figure 8 This is a structural diagram of a portion of a pot cover according to one embodiment of the present invention;

[0034] Figure 9 This is a schematic structural diagram of a pot cover according to one embodiment of the present invention.

[0035] in:

[0036] 1. Surface cover; 11. Cover body; 12. Cover plate; 13. Mounting slot; 131. Bottom wall; 14. Trigger portion; 141. Trigger protrusion; 15. Air outlet; 16. Matching slide slot; 161. High position; 162. Low position;

[0037] 2 inner cover; 21 matching sink; 22 cooling chamber;

[0038] 3 water tank; 31 box body; 311 matching protrusion; 312 water outlet; 313 stop rib; 314 annular rib; 32 water outlet switch; 321 mounting rib; 33 elastic member; 34 sealing member;

[0039] 4 slow flow structure; 41 slow flow outlet; 42 barrier portion; 43 connecting arm. DETAILED DESCRIPTION

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] like Figure 1 As shown, a pressure cooking appliance includes a pot body and a pot cover, the pot cover includes a surface cover 1 and an inner cover 2, the surface cover 1 is provided with a water tank 3, the inner cover 2 and the surface cover 1 cooperate to form a cooling chamber 22, the top surface of the surface cover 1 is provided with a mounting groove 13 for mounting the water tank 3, the water tank 3 includes a box body 31 with a water outlet 312 and a water outlet switch 32 provided at the water outlet 312, the pot cover or the water tank 3 is provided with a trigger part 14, the trigger part 14 can drive the water outlet switch 32 to open the water outlet 312, and a slow flow structure 4 is further provided between the water tank 3 and the cooling chamber 22, the slow flow structure 4 has a blocking part 42 corresponding to the water outlet 312, and a slow flow outlet 41, the water outlet 312 is connected to the cooling chamber 22 through the slow flow outlet 42 to slow down the flow rate of the liquid entering the cooling chamber 22.

[0046] In the present invention, the water tank 3 is installed in the mounting groove 13 of the cover 1. When water cooling and pressure reduction are performed, the trigger part 14 drives the water outlet switch 32 to open the water outlet 312, so that the water in the box body 31 flows out. At the same time, a slow flow structure 4 is also provided between the water outlet 312 and the cooling chamber 22. After the water flows out of the water outlet 312, before entering the cooling chamber 22, it will first flow to the slow flow structure 4, and then pass through the blocking effect of the blocking part 42 of the slow flow structure 4, so that the flow speed of the water is reduced, and then enter the cooling chamber 22 with a smaller flow rate and flow rate. In this way, the amount of water flowing to the surface of the inner cover 2 per unit time is greatly reduced, so that the water can fully contact the inner cover 2, so that it can quickly vaporize under the high temperature of the inner cover 2 to form water vapor, reducing the probability of water accumulation on the surface of the inner cover 2. At the same time, the water vaporization efficiency on the surface of the inner cover 2 is improved, so that the liquid water is quickly vaporized to form water vapor, which absorbs heat during the vaporization process, thereby improving the cooling and pressure reduction efficiency of the inner cover 2 and achieving rapid pressure reduction.

[0047] Furthermore, since the slow-flow structure 4 is disposed separately between the water tank 3 and the cooling chamber 22, the water flow is blocked outside the water tank 3 rather than at the water outlet 312. This eliminates the need for structural design of the water outlet 312 and the water outlet switch 32, and reduces the requirements for the flow rate and flow rate of the water outflowing from the water outlet 312. This simplifies the structure of the water tank 3 and reduces the impact of assembly errors on the water outlet speed. Even if the user frequently installs and removes the water tank 3, a reliable water outlet speed can be maintained, thereby ensuring the water cooling and pressure reduction effect.

[0048] It should be noted that, in this specification, the present invention is described in detail by taking water as the cooling medium, but the present invention is not limited to the type of cooling medium, which may also be coolant or other liquid medium.

[0049] Preferably, the slow flow structure 4 is used to reduce the flow rate and flow rate of water entering the cooling chamber 22. Preferably, the water in the box 31 drips into the cooling chamber 22 in the form of water droplets to accelerate the evaporation of water and avoid accumulation in the cooling chamber 22. Of course, the water in the box 31 can also flow into the cooling chamber 22 at a smaller flow rate, which is not limited here.

[0050] Preferably, the water tank 3 is removably mounted in the mounting slot 13, allowing the user to remove the water tank 3 from the pot lid for refilling or cleaning. Alternatively, the water tank 3 can be temporarily installed during the pressure cooking process and only installed during the pressure reduction phase after cooking. Of course, the water tank 3 can also be configured as a non-removable structure.

[0051] Furthermore, the present invention does not limit the timing of opening the water outlet switch 32. In one embodiment, the trigger portion 14 is disposed within the mounting slot 13. Once the water tank 3 is installed within the mounting slot 13, the trigger portion 14 engages with the water outlet switch 32, actuating the water outlet switch 32 to open the water outlet 312. In other words, once the water tank 3 is installed, water within the tank body 31 begins to flow into the cooling chamber 22. In another embodiment, the trigger portion 14 is disposed within the mounting slot 13. However, after the water tank 3 is installed within the mounting slot 13, the trigger portion 14 does not engage with the water outlet switch 32 and cannot actuate the water outlet switch 32. This requires additional user manipulation, such as manual manipulation of the water tank 3 (e.g., rotation, pressing, etc.), or automatic manipulation by the user through the electronic control system (e.g., a user triggering an electronic switch on the pressure cooking appliance) to actuate the water outlet switch 32 to open the water outlet 312.

[0052] As a preferred embodiment of the present invention, Figures 2 to 4 as well as Figure 6As shown, the water outlet 312 is arranged on the bottom wall 131 of the box body 31, and the trigger part 14 includes a trigger protrusion 141 arranged on the bottom wall 131 of the mounting groove 13 and extending upward. The box body 31 can move up and down relative to the cover 1 so that the trigger protrusion 141 pushes the water outlet switch 32 to open the water outlet 312.

[0053] The water outlet 312 and the water switch 32 are located at the bottom of the housing 31. A trigger protrusion 141 protrudes upward to activate the water switch 32. After the water tank 3 is installed, the user can open or close the water outlet 312 as needed by controlling the up and down movement of the housing 31. This allows water to flow to the inner cover 2 during a specific period of time within the pressure cooking appliance (e.g., during the pressure reduction phase after cooking). When the housing 31 is in its initial position, the trigger protrusion 141 and the water switch 32 are not in contact, or even if they are in contact, the upward force exerted by the trigger protrusion 141 on the water switch 32 is insufficient to open the water outlet 312. In this case, the water outlet 312 is closed. As the housing 31 moves downward, the force exerted by the trigger protrusion 141 on the water switch 32 gradually increases, eventually pushing the water switch 32 upward, opening the water outlet 312 and allowing water within the housing 31 to flow out of the water outlet 312.

[0054] In another embodiment, the trigger protrusion 141 may be provided on the inner cover 2 and protrude upward, which can also drive the water outlet switch 32 .

[0055] Specifically, such as Figure 3 、 Figure 4 As shown, the water outlet switch 32 passes through the water outlet 312, and the upper end is located inside the box body 31, the lower end is located outside the box body 31, and the upper end is provided with a seal 34. Figure 3 As shown, the seal 34 abuts against the inner wall of the box 31 to seal the water outlet 312. When the lower end of the water outlet switch 32 is pushed upward by the trigger protrusion 141, the water outlet switch 32 moves upward as a whole, as shown in FIG. Figure 4 As shown, the sealing member 34 is disengaged from the inner wall of the box body 31 , and the water outlet 312 is now open, allowing the water in the box body 31 to flow out.

[0056] Preferably, if Figures 2 to 4 As shown, the water tank 3 further includes an elastic member 33 , which acts on the water outlet switch 32 to apply a downward thrust to the water outlet switch 32 .

[0057] The elastic member 33 exerts a downward force on the water outlet switch 32, thereby firmly contacting the seal 34 with the inner wall of the housing 31, ensuring a reliable seal. When the trigger protrusion 141 pushes the water outlet switch 32 upward, the elastic force of the elastic member 33 must be overcome to move the water outlet switch 32. When the pushing force of the trigger protrusion 141 on the water outlet switch 32 decreases or disappears, the water outlet switch 32 moves downward under the elastic force of the elastic member 33, returning to its original position, maintaining contact between the seal 34 and the housing 31, and keeping the water outlet 312 in a normally closed state.

[0058] Preferably, the elastic member 33 is a spring to simplify the structure and save costs. Of course, the elastic member 33 can also be other structures, such as silicone members, etc., as long as it can form a downward thrust on the water outlet switch 32, and is not limited here.

[0059] Furthermore, the upper end of the elastic member 33 acts on the box body 31, and the lower end acts on the water outlet switch 32. Figures 3 to 5 As shown, the water outlet 312 is provided with a downwardly protruding annular rib 314. The annular rib 314 surrounds the water outlet 312 to form a mounting channel, and the water outlet switch 32 is disposed within the mounting channel. The mounting channel can guide the movement of the water outlet switch 32, limiting its movement direction, thereby making the trigger protrusion 141 more stable and reliable in driving it.

[0060] like Figures 3 to 5 As shown, the top of the installation channel is provided with an inwardly protruding stop rib 313. The elastic member 33 is sleeved around the outer periphery of the water outlet switch 32. The water outlet switch 32 is provided with a mounting rib 321 on its circumference. The upper end of the elastic member 33 abuts the stop rib 313, and the lower end abuts the mounting rib 321. When the water outlet switch 32 moves upward, the elastic member 33 is squeezed and deformed.

[0061] It should be noted that this embodiment does not limit the operation method of the box body 31. In a preferred embodiment, the user can press the box body 31 downward to move it downward, so that the trigger protrusion 141 actuates the water outlet switch 32. Furthermore, in this embodiment, a vertically extending slide can be provided on either the inner wall of the installation groove 13 or the outer wall of the box body 31, and a sliding protrusion that cooperates with the slide can be provided on the other side to guide the movement of the box body 31 and limit the water tank 3 to only vertical movement.

[0062] In another preferred embodiment, Figure 2 、 Figure 6As shown, one of the inner wall of the mounting groove 13 and the outer wall of the box body 31 is provided with a matching slide groove 16, and the other is provided with a matching protrusion 311. The matching slide groove 16 extends along the circumference of the box body 31 and has a high position 161 and a low position 162. In the axial direction of the box body 31, there is a height difference between the high position 161 and the low position 162. The box body 31 can be rotated relative to the face cover 1 to switch the matching protrusion 311 between the high position 161 and the low position 162. When the matching protrusion 311 is in the high position 161, the water outlet switch 32 blocks the water outlet 312. When the matching protrusion 311 is in the low position 162, the trigger protrusion 141 pushes the water outlet switch 32 to open the water outlet 312.

[0063] In this embodiment, the water outlet 312 is opened or closed by rotating the operating box 31. This rotational operation is not only simpler and more convenient for the user, but also effectively prevents accidental user contact compared to the press-to-discharge operation, thereby improving reliability. In addition, the mating grooves 16 and mating protrusions 311 on the inner wall of the mounting groove 13 and the outer wall of the box 31 cooperate to convert the rotational motion of the box 31 into vertical motion of the box 31 when the box 31 and the cover 1 rotate relative to each other, allowing the trigger protrusion 141 to lift or lower the water outlet switch 32.

[0064] Specifically, for example, the matching slide groove 16 is provided on the inner wall of the mounting groove 13, and the matching protrusion 311 is provided on the outer wall of the box body 31. Figure 6 As shown, the guide groove extends obliquely along the circumference of the box body 31, the high position 161 is located at one end of the mating groove 16, and the low position 162 is located at the other end. When the mating protrusion 311 slides in the mating groove 16, the box body 31 and the cover 1 undergo relative displacement in the axial direction.

[0065] Furthermore, if Figure 6 As shown, the two ends of the matching chute 16 are provided with horizontal sections to respectively form a high position 161 and a low position 162. When the matching protrusion 311 moves to the horizontal section, it can stay in the horizontal section, thereby keeping the box body 31 in the water discharge state or the closed state.

[0066] Of course, the matching sliding groove 16 can also be set on the inner wall of the installation groove 13, and the matching protrusion 311 can be correspondingly set on the outer wall of the box body 31, which is not limited here.

[0067] Preferably, if Figure 2 、 Figure 6 As shown, there are multiple mating protrusions 311 that are evenly spaced along the circumference of the box body 31, and the mating grooves 16 are provided with multiple sections corresponding to the mating protrusions 311, so that the circumference of the box body 31 is evenly guided during rotation to prevent the box body 31 from tilting.

[0068] Furthermore, the mating groove 16 is also provided with a locking rib protruding toward the inside of the mating groove 16 at the high position 161 and / or the low position 162, and the locking rib can cooperate with the mating protrusion 311 to limit the mating protrusion 311 to the high position 161 or the low position 162.

[0069] When the mating protrusion 311 moves to the high position 161 and / or the low position 162 in the mating chute 16, it will interfere with the locking rib. At this time, the user needs to use more force to continue to rotate the box 31 so that the mating protrusion 311 passes over the locking rib and enters the end of the mating chute 16. This process can serve as a prompt for the user's operation. When the box 31 is rotated into place, the user will receive obvious force feedback, thereby knowing that the box 31 has moved into place. At the same time, after the mating protrusion 311 reaches the end of the mating chute 16, it is stopped by the locking rib and is restricted to the end, thereby preventing the box 31 from rotating on its own, and thus maintaining the state of the water outlet 312 being open or closed. Only when the user uses greater force to rotate the box 31 in the opposite direction can the box 31 resume movement.

[0070] It should be noted that the present invention does not limit the location and structure of the slow-flow structure 4. Regarding the location, the slow-flow structure 4 can be located on the water tank 3 below the water outlet 312. When the water tank 3 is installed on the cover 1, the slow-flow structure 4 is located between the water outlet 312 and the cooling cavity 22. For another example, the slow-flow structure 4 can be located on the cover 1 above the cooling cavity 22. When the water tank 3 is installed, the slow-flow structure 4 is located between the water outlet 312 and the cooling cavity 22. Alternatively, the slow-flow structure 4 can be located on the inner cover 2, which is not limited here.

[0071] Preferably, if Figure 3 、 Figure 4 As shown, the installation groove 13 has a bottom wall 131 , which constitutes a slow flow structure 4 . The bottom wall 131 is provided with a slow flow port 41 , which is staggered with the water outlet 312 .

[0072] When the water in the box body 31 flows out from the water outlet 312, since the bottom wall 131 is directly opposite to the water outlet 312, the water flows to the bottom wall 131 of the mounting groove 13, where it is blocked by the bottom wall 131 and cannot continue to flow downward into the cooling chamber 22. Instead, the water flows within the mounting groove 13 and then flows down through the slow-flow opening 41 that is arranged offset from the water outlet 312. This not only has a certain flow-blocking effect on the water flowing out of the water outlet 312, slowing down the flow rate and flow into the cooling chamber 22, but also allows the water to temporarily gather in the mounting groove 13, thereby continuously flowing down from the slow-flow opening 41, so that the water flows into the cooling chamber 22 evenly and stably.

[0073] For example, the slow flow port 41 is a plurality of small holes and is arranged on the bottom wall 131, so that the bottom wall 131 of the mounting groove 13 is a porous structure, thereby making water enter the cooling cavity 22 more slowly and dispersedly, which is conducive to rapid heating and evaporation. Figure 4 、 Figure 6 As shown, the water outlet 312 corresponds to the center of the mounting groove 13, the barrier portion 42 is arranged at the center of the bottom wall 131, and the slow-flow structure 4 also includes a connecting arm 43 extending outward from the barrier portion 42 to the side wall of the mounting groove 13. There are multiple connecting arms 43 and they are arranged at intervals along the circumference of the mounting groove 13, and a slow-flow outlet 41 is formed between two adjacent connecting arms 43.

[0074] The blocking portion 42 faces the water outlet 312 and can directly block the water flowing out of the water outlet 312 . The water on the blocking portion 42 gradually overflows to the outside and then flows down through the slow flow port 41 and into the cooling chamber 22 .

[0075] As another preferred embodiment of the present invention, Figure 7 As shown, the upper end of the water outlet switch 32 extends out of the box body 31 to form a trigger part 14, and a seal 34 is provided at the lower end of the water outlet switch 32. The seal 34 is located below the box body 31, and the water outlet switch 32 can move up and down so that the seal 34 blocks or opens the water outlet 312; the projection of the seal 34 toward the box body 31 covers the water outlet 312, so that the seal 34 can form a barrier to the liquid flowing out of the water outlet 312, and the seal 34 constitutes a slow flow structure 4.

[0076] Specifically, when the water outlet switch 32 moves upward, the seal 34 contacts the outer bottom wall 131 of the box body 31 to seal the water outlet 312. When the water outlet switch 32 moves downward, the seal 34 separates from the outer bottom wall 131 of the box body 31, and the water outlet 312 is open. Figure 7 As shown, an elastic member 33 is also provided at the water outlet switch 32 to push the water outlet switch 32 upward and reset. When the user needs water cooling, they press the trigger portion 14 of the water outlet switch 32, causing the water outlet switch 32 to move downward, pushing the bottom seal 34 away from the bottom wall 131 of the box body 31, opening the water outlet 312, and allowing the water in the box body 31 to flow out. The water is blocked by the seal 34, flowing down the edge of the seal 34 and into the cooling chamber 22. When the user releases the seal, the elastic member 33 rebounds the water outlet switch 32 upward and resets it. The seal 34 re-engages the bottom wall 131 of the box body 31, sealing the water outlet 312 and maintaining the water outlet switch 32 in the normally closed state.

[0077] Preferably, if Figure 1 、 Figure 7 、 Figure 8 、 Figure 9As shown, the cover 1 includes a cover body 11 and a cover plate 12. The cover body 11 is provided with an opening. The cover plate 12 is detachably fixed to the opening so that the cover plate 12 cooperates with the inner cover 2 to form a cooling cavity 22. The cover plate 12 is provided with an air outlet 15 connected to the cooling cavity 22.

[0078] When the cover 12 is not installed, Figure 8 As shown, the cooling chamber 22 is exposed to the outside, allowing the user to directly wipe and clean the interior of the cooling chamber 22. The cover plate 12 also serves as a mounting bracket for the water tank 3. By securing the water tank 3 to the cover plate 12 and then attaching the cover plate 12 to the cover body 11, the water tank 3 and the cover plate 12 form a single assembly, allowing for joint assembly and disassembly, thus reducing installation and disassembly difficulty for the user. Furthermore, the detachable design of the cover plate 12 allows the user to remove the cover plate 12 and clean it separately, reducing cleaning pressure and helping to ensure the cleanliness of the cooling chamber 22.

[0079] like Figure 7 As shown, the cover plate 12 is provided with an air outlet 15 for timely exhausting water vapor generated by the liquid in the cooling chamber 22 due to heat and vaporization, thereby preventing an increase in the air pressure in the cooling chamber 22. In other embodiments, the cover plate 12 and the cover body 11 may cooperate to form an exhaust gap for exhausting water vapor, for example, between the outer periphery of the cover plate 12 and the edge of the opening, which is not limited here.

[0080] Preferably, a sealing structure is provided between the cover plate 12 and the edge of the opening, and the cover plate 12 and the cover body 11 are fixed by an interference fit, so as to facilitate the user to install and remove the cover plate 12. Of course, the cover plate 12 can also be fixed to the cover body 11 by other means, such as snap fastening, threaded fastening, etc., which are not limited here.

[0081] In a preferred embodiment, Figure 1 、 Figure 8 As shown, the top surface of the inner cover 2 is provided with a downwardly concave matching groove 21 , and the surface cover 1 cooperates with the matching groove 21 to form a cooling cavity 22 .

[0082] The setting of the sink 21 makes the bottom wall 131 of the cooling chamber 22 recessed relative to the top surface of the inner cover 2, thereby lowering the height of the cooling chamber 22. Even if the water in the cooling chamber 22 does not evaporate in time and accumulates in the cooling chamber 22, it will not flow directly into the inside of the pot cover.

[0083] Anything not described in this utility model can be achieved by adopting or drawing on existing technologies.

[0084] 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.

[0085] 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 pressure cooking device comprising a pot body and a pot cover, wherein the pot cover comprises a top cover and an inner cover, and the top cover is provided with a water tank, characterized in that: The inner cover and the surface cover cooperate to form a cooling cavity, the top surface of the surface cover is provided with a mounting groove for installing the water tank, the water tank includes a box body with a water outlet and a water outlet switch provided at the water outlet, the pot cover or the water tank is provided with a trigger part, and the trigger part can drive the water outlet switch to open the water outlet, and a slow flow structure is also provided between the water tank and the cooling cavity, the slow flow structure has a blocking part corresponding to the water outlet, and a slow flow port, the water outlet is connected to the cooling cavity through the slow flow port to slow down the flow rate of the liquid entering the cooling cavity.

2. The pressure cooking device according to claim 1, wherein The water outlet is arranged on the bottom wall of the box body, and the trigger part includes a trigger protrusion arranged on the bottom wall of the mounting groove and extending upward. The box body can move up and down relative to the surface cover so that the trigger protrusion pushes the water outlet switch to open the water outlet.

3. The pressure cooking device according to claim 2, wherein: One of the inner side wall of the mounting groove and the outer side wall of the box body is provided with a matching slide groove, and the other one is provided with a matching protrusion, the matching slide groove extends along the circumference of the box body and has a high position and a low position, and there is a height difference between the high position and the low position in the axial direction of the box body, and the box body can be rotated relative to the face cover to switch the matching protrusion between the high position and the low position, when the matching protrusion is in the high position, the water outlet switch blocks the water outlet, and when the matching protrusion is in the low position, the trigger protrusion pushes the water outlet switch to open the water outlet.

4. The pressure cooking appliance according to claim 3, wherein The mating slot is further provided with a locking rib protruding toward the inside of the mating slot at the high position and / or the low position, and the locking rib can cooperate with the mating protrusion to limit the mating protrusion to the high position or the low position.

5. The pressure cooking appliance according to claim 2, wherein A sealing member is provided at the upper end of the water outlet switch, and the sealing member is located inside the box body. The water tank also includes an elastic member, and the elastic member acts on the water outlet switch to apply a downward thrust to the water outlet switch.

6. The pressure cooking appliance according to claim 1, wherein The installation groove has a bottom wall, the bottom wall constitutes the slow flow structure, the bottom wall is provided with the slow flow port, and the slow flow port is staggered with the water outlet.

7. The pressure cooking appliance according to claim 6, wherein The water outlet corresponds to the center of the mounting groove, the blocking portion is arranged at the center of the bottom wall, and the slow-flow structure also includes a connecting arm extending outward from the blocking portion to the side wall of the mounting groove. There are multiple connecting arms and they are arranged at intervals along the circumference of the mounting groove, and the slow-flow outlet is formed between two adjacent connecting arms.

8. The pressure cooking appliance according to claim 1, wherein The upper end of the water outlet switch extends out of the box to form the trigger portion, and the lower end of the water outlet switch is provided with a sealing member, which is located below the box. The water outlet switch can move up and down to enable the sealing member to block or open the water outlet; The projection of the sealing member toward the box body covers the water outlet, so that the sealing member can block the liquid flowing out of the water outlet, and the sealing member constitutes the slow-flow structure.

9. The pressure cooking appliance according to claim 1, wherein The surface cover includes a cover body and a cover plate. The cover body is provided with an opening. The cover plate is detachably fixed to the opening so that the cover plate cooperates with the inner cover to form the cooling cavity. The cover plate is provided with an air outlet connected to the cooling cavity.

10. The pressure cooking device according to any one of claims 1 to 9, characterized in that: The top surface of the inner cover is provided with a downwardly recessed matching groove, and the surface cover cooperates with the matching groove to form the cooling cavity.

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