Water-cooling pressure cooking utensil

Abstract

The water-cooling pressure cooking utensil comprises a pot cover and a pot body, the pot cover comprises a cover body and an inner cover fixed to the lower portion of the cover body, the pot cover further comprises a fixing base and a cooling piece, the fixing base is fixed to the cover body, a mounting opening is formed in the lower side of the fixing base, and the cooling piece is fixed to the mounting opening and extends downwards to penetrate through the inner cover. A cooling cavity is formed in the cooling part, the fixed seat is provided with a water inlet and a water outlet which are communicated with the cooling cavity, a water inlet cavity and a water outlet cavity are formed in the cooling cavity and are communicated at the bottom of the cooling cavity, and a sealing part is arranged between the cooling part and the fixed seat. The cooling liquid flows back and forth up and down in the cooling cavity, so that the flowing path of the cooling liquid is greatly prolonged in the cooling cavity with limited space, the staying time of the cooling liquid in the cooling cavity is prolonged, the cooling liquid is in full contact with air in a pot for heat exchange, and the heat exchange effect is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of kitchen appliances, and in particular relates to a water-cooled 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 that use water cooling for temperature and pressure reduction typically have a water-cooling chamber in the lid, which cools the pot by passing coolant through the chamber.

[0004] The water-cooling chamber is typically located on the inner cover, inside the inner cover, or formed by other components in conjunction with the inner cover. However, some cooking appliances feature a removable or rotatable inner cover. In this case, the water-cooling chamber can be removed or rotated along with the inner cover. Frequent connection and removal, as well as the movement of the water-cooling chamber and water-cooling piping, can compromise the sealability of the connection, posing a risk of coolant leakage.

[0005] In addition, due to the fast flow rate of the coolant, the coolant stays in the water-cooling chamber for a short time, and often flows out of the water-cooling chamber before it has fully contacted the high-temperature gas in the pot, resulting in poor cooling effect of the coolant on the air in the pot and low utilization rate.

[0006] Furthermore, in order to ensure the sealing of the water-cooling chamber, high requirements are placed on the fixation and sealing of the cooling element used to form the water-cooling chamber. On the one hand, it is difficult to firmly fix the cooling element to the pot cover, and the cooling element is prone to loosening or falling off. On the other hand, if the cooling element is loose, coolant leakage is likely to occur, causing the coolant to invade the interior of the pot cover and affect the water cooling efficiency. Utility Model Content

[0007] The utility model provides a water-cooled pressure cooking appliance, which solves the problem that the water-cooling chamber is arranged in the inner cover, resulting in unstable connection between the water-cooling pipeline and the water-cooling chamber, and solves the problems of short residence time of the coolant in the water-cooling chamber, low heat exchange efficiency, and difficulty in fixing and sealing the cooling element and the pot cover.

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

[0009] A water-cooled pressure cooking appliance comprises a pot cover and a pot body, wherein the pot cover comprises the cover body and an inner cover fixed below the cover body, the pot cover further comprises a fixing seat and a cooling element, the fixing seat being fixed to the cover body, the lower side of the fixing seat being provided with a mounting opening, the cooling element being fixed to the mounting opening and extending downwardly to pass through the inner cover, the cooling element having a cooling cavity inside, the fixing seat being provided with a water inlet and a water outlet connected to the cooling cavity, the cooling cavity having a water inlet cavity and a water outlet cavity inside, the water inlet cavity and the water outlet cavity being connected at the bottom of the cooling cavity, and a sealing element being provided between the cooling element and the fixing seat.

[0010] The water-cooled pressure cooking appliance of the present invention also has the following additional technical features:

[0011] The cover body comprises a lining cover and a surface cover located above the lining cover. The fixing seat is fixed on the upper side of the lining cover. The lining cover is provided with an opening for the cooling element to pass through. The cooling element is sealed and matched with the opening.

[0012] A first stopper and a second stopper are provided on the outer circumference of the cooling member. The first stopper is located on the upper side of the lining cover, and the second stopper is located on the lower side of the lining cover. The first stopper and the second stopper clamp the lining cover.

[0013] The outer peripheral side of the cooling element is provided with a rotation-stopping rib, and the edge of the opening is provided with a matching rib. The rotation-stopping rib and the matching rib cooperate to limit the rotation of the cooling element relative to the lining cover.

[0014] Positioning ribs are arranged around the periphery of the installation opening. The sealing member includes a first sealing lip and a second sealing lip. The first sealing lip is located above the cooling member, and the second sealing lip surrounds the periphery of the cooling member.

[0015] The fixing seat is provided with a fixing column extending upward, and the pot cover also includes an operating handle, a fork member and a locking ring. The fork member is provided on the fixing seat, and the operating handle is used to drive the fork member to rotate, so as to drive the locking ring to rotate relative to the cover body.

[0016] The pot cover also includes a cooling core arranged in the cooling cavity, the cooling core is fixed to the fixing seat, and the cooling core is provided with a separation rib, which separates the cooling cavity into a water inlet cavity and a water outlet cavity.

[0017] The separation rib comprises a main body, the separation rib is arranged on the outer peripheral side of the main body, the separation rib has a vertical section, and a limiting groove matched with the vertical section is arranged in the installation opening to position the cooling core.

[0018] There are two separating ribs which are arranged on both sides of the main body in a radial direction thereof. The separating ribs also have a spiral section located below the vertical section, and the spiral section extends in a spiral shape along the axial direction of the main body.

[0019] The pot cover also includes a cooling core arranged in the cooling cavity, the cooling core is fixed to the fixing seat, a sealing ring is provided between the cooling core and the fixing seat, and the cooling core and / or the fixing seat are provided with a receiving groove for accommodating the sealing ring.

[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, the cooling element is arranged on the cover body, so even if the inner cover can be rotated or disassembled relative to the cover body, the cover body will not move, thereby ensuring that the cooling element and the water-cooling pipe connected to the cooling element will not change position, thereby maintaining a stable connection and seal between the water-cooling pipe and the cooling cavity, thereby improving the reliability of the pipe connection. In addition, there is no need to dock the water-cooling pipe with the cooling cavity when installing the inner cover, which reduces the efficiency of assembly and disassembly of the inner cover and the convenience of operation, and improves the user experience. The water-cooling pipe can always remain connected to the cooling cavity, and there is no need to frequently connect the water-cooling pipe and the cooling cavity, thereby ensuring the sealing of the connection, further reducing the risk of water-cooling liquid leakage, and ensuring water cooling efficiency.

[0022] In addition, the cooling element is fixed to the lower side of the fixing base and is connected with the water inlet and water outlet on the fixing base. After the coolant enters the cooling cavity from the top of the cooling cavity, it first reaches the water inlet cavity, then flows downward to the bottom of the cooling cavity, flows into the water outlet cavity, and then flows upward and out of the water outlet, so that the coolant flows back and forth up and down in the cooling cavity. In the cooling cavity with limited space, the flow path of the coolant is greatly extended, and the time the coolant stays in the cooling cavity is extended, so that it can fully contact and exchange heat with the air in the pot, thereby ensuring the heat exchange effect.

[0023] Moreover, the cooling element is mounted on the cover body through a fixing seat, and the fixing seat serves as a fixing bracket, which greatly reduces the difficulty and complexity of installing the cooling element and the cover body. The fixing seat is first fixed to the cover body, and then the cooling element is fixed to the fixing seat. It is more convenient to process a fixing structure for fixing the cooling element on the fixing seat without making a large structural improvement to the cover body, thereby saving costs. The mounting port can also play a positioning role in the installation of the cooling element, further improving the installation efficiency of the cooling element. There is a seal between the cooling element and the fixing seat. When the two are fixed, the seal is squeezed to seal the gap between the two, which greatly reduces the risk of coolant leakage. At the same time, the presence of the seal also increases the friction between the cooling element and the fixing seat, making the two more firmly fixed and reducing the probability of the cooling element loosening.

[0024] 2. As a preferred embodiment of the present invention, the lid body includes a lining cover and a surface cover positioned above the lining cover. The fixing base is fixed to the upper side of the lining cover. The lining cover defines an opening for the cooling element to pass through, and the cooling element is in sealed engagement with the opening. The fixing base is positioned above the lining cover, and the cooling element is in sealed engagement with the opening of the lining cover. This positions the fixing base and the water-cooling pipeline on the side of the lining cover facing away from the cooking chamber, thereby reducing the probability of direct contact between steam within the pot and the fixing base and the water-cooling pipeline. This ensures both cleanliness and longevity, prevents steam from corroding the fixing base and its components, and ensures a secure connection.

[0025] 3. As a preferred embodiment of the present invention, a positioning rib is provided around the periphery of the mounting port, and the sealing member includes a first sealing lip and a second sealing lip, wherein the first sealing lip is located above the cooling member, and the second sealing lip surrounds the periphery of the cooling member. The first sealing lip of the sealing member is located between the top of the cooling member and the fixed seat, sealing the gap there, and the second sealing lip is located between the periphery of the cooling member and the positioning rib, sealing the gap there, which not only improves the sealing effect, but also makes it difficult for the cooling member to move relative to the fixed seat under the action of friction, thereby ensuring the connection stability and position stability of the cooling member and the fixed seat. At the same time, the positioning rib surrounds the periphery of the second sealing lip, which can also limit the seal and prevent the seal from shifting under the action of extrusion.

[0026] 4. As a preferred embodiment of the present invention, the fixing base is provided with a fixing column extending upward, and the pot cover further includes an operating handle, a fork member and a locking ring. The fork member is provided on the fixing base, and the operating handle is used to drive the fork member to rotate, so as to drive the locking ring to rotate relative to the lid body. For pressure cooking appliances, in order to ensure the safety of pressure cooking, it is necessary to lock the pot cover and the pot body during pressure cooking, and then unlock the pot cover and the pot body after the pressure cooking is completed. In the present invention, the fork member is driven to rotate by the operating handle, and then the locking cover is driven to rotate to achieve the locking and unlocking of the pot cover and the pot body. The fixing base is not only used for installing the cooling member, but also for fixing the fork member, so that the fixing base realizes the integration of the functions of fixing the cooling member and fixing the fork member, giving the fixing base a wider range of functions, multi-purpose, simplifying the internal structure of the pot cover, optimizing the internal space of the pot cover, and saving costs.

[0027] 5. As a preferred embodiment of the present invention, there are two separating ribs, which are arranged radially opposite to each other on either side of the main body. The separating ribs also have a spiral section located below the vertical section, which extends in a spiral shape along the axial direction of the main body. The spirally arranged separating ribs not only separate the cooling chamber into an inlet chamber and an outlet chamber, but also restrict the flow channels within the inlet and outlet chambers to a spiral shape, thereby further lengthening the flow channels within the inlet and outlet chambers, further increasing the flow path of the coolant within the inlet and outlet chambers, extending the time the coolant stays in the cooling chamber, and improving the heat exchange effect between the coolant and the high-temperature gas in the pot. 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 pot cover structure 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 for Figure 3 A magnified view of area A, where the arrows indicate the direction of coolant flow;

[0033] Figure 5 This is a structural diagram of a fixing seat according to one embodiment of the present invention;

[0034] Figure 6 for Figure 5 Schematic diagram of the structure on the other side of the middle fixed seat;

[0035] Figure 7 This is a schematic structural diagram of a cooling element according to one embodiment of the present invention;

[0036] Figure 8 This is a schematic structural diagram of a cooling core in one embodiment of the present invention.

[0037] in:

[0038] 1 cover body; 11 lining cover; 111 opening; 12 surface cover; 13 water pump; 14 water tank; 15 nut;

[0039] 2 inner cover; 21 through hole;

[0040] 3 cooling element; 31 cooling chamber; 311 water inlet chamber; 312 water outlet chamber; 32 first stopper; 33 second stopper; 34 threaded section; 35 anti-rotation rib;

[0041] 4 fixing seat; 41 water inlet pipe; 411 water inlet; 42 water outlet pipe; 421 water outlet; 43 positioning rib; 44 screw seat; 45 mounting opening; 46 limiting groove; 47 fixing column;

[0042] 5 cooling core; 51 main body; 52 separation rib; 521 vertical section; 522 spiral section; 53 sealing ring; 54 receiving groove;

[0043] 6 fork parts;

[0044] 7 operating handle;

[0045] 8 locking rings;

[0046] 9 sealing member; 91 first sealing lip; 92 second sealing lip. DETAILED DESCRIPTION

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] like Figure 1 、 Figure 4 As shown, a water-cooled pressure cooking appliance includes a pot cover and a pot body, the pot cover includes a cover body 1 and an inner cover 2 fixed below the cover body 1, the pot cover also includes a fixing seat 4 and a cooling member 3, the fixing seat 4 is fixed to the cover body 1, the lower side of the fixing seat 4 has a mounting port 45, the cooling member 3 is fixed to the mounting port 45 and extends downward to pass through the inner cover 2, the cooling member 3 has a cooling cavity 31 inside, the fixing seat 4 is provided with a water inlet 411 and a water outlet 421 connected to the cooling cavity 31, the cooling cavity 31 has a water inlet cavity 311 and a water outlet cavity 312 inside, the water inlet cavity 311 and the water outlet cavity 312 are connected at the bottom of the cooling cavity 31, and a sealing member 9 is provided between the cooling member 3 and the fixing seat 4.

[0053] By using water cooling to reduce the pressure, there is no need to open the exhaust valve to exhaust when releasing the pressure. While ensuring the pressure relief speed, the whistling sound of the air flow during exhaust is reduced, thereby reducing noise, and no liquid is sprayed out to cause pollution to the pot lid, greatly improving the user experience.

[0054] Preferably, if Figure 1 As shown, the inner cover 2 is provided with a through hole 21, through which at least a portion of the cooling element 3 extends to the bottom of the inner cover 2. A sealing rubber ring is provided at the through hole 21 to abut against the outer periphery of the cooling element 3 to seal against it, preventing gas, liquid, and food residue in the cooking chamber from passing through the gap between the cooling element 3 and the edge of the through hole 21 and reaching the top of the inner cover 2.

[0055] In the present invention, the cooling element 3 is provided on the cover body 1, so even if the inner cover 2 can be rotated or disassembled relative to the cover body 1, the cover body 1 will not move, thereby ensuring that the cooling element 3 and the water-cooling pipeline connected to the cooling element 3 will not change position, thereby maintaining a stable connection and seal between the water-cooling pipeline and the cooling cavity 31, thereby improving the reliability of the pipeline connection. In addition, there is no need to dock the water-cooling pipeline with the cooling cavity 31 when installing the inner cover 2, which reduces the assembly and disassembly efficiency and operational convenience of the inner cover 2 and improves the user experience. The water-cooling pipeline can always remain connected to the cooling cavity 31, and there is no need to frequently connect the water-cooling pipeline and the cooling cavity 31, thereby ensuring the sealing of the connection, further reducing the risk of water-cooling liquid leakage, and ensuring water cooling efficiency.

[0056] It should be noted that although the present invention sets the cooling member 3 on the cover 1 so that the rotation and removal of the inner cover 2 will not affect the position of the cooling member 3 and the cooling cavity 31, the present invention does not limit whether the inner cover 2 is rotatable or removable.

[0057] The cooling element 3 is fixed to the lower side of the fixing base 4 and is connected with the water inlet 411 and the water outlet 421 on the fixing base 4. After the coolant enters the cooling chamber 31 from the top of the cooling chamber 31, it first reaches the water inlet chamber 311, then flows downward to the bottom of the cooling chamber 31, flows into the water outlet chamber 312, and then flows upward and out of the water outlet 421, so that the coolant flows back and forth up and down in the cooling chamber 31. In the cooling chamber 31 with limited space, the flow path of the coolant is greatly extended, and the time the coolant stays in the cooling chamber 31 is extended, so that it can fully contact and exchange heat with the air in the pot, thereby ensuring the heat exchange effect.

[0058] Furthermore, the cooling element 3 is mounted on the cover body 1 via the fixing seat 4, which acts as a fixing bracket, greatly reducing the difficulty and complexity of installing the cooling element 3 and the cover body 1. The fixing seat 4 is first fixed to the cover body 1, and then the cooling element 3 is fixed to the fixing seat 4. This allows for a more convenient processing of a fixing structure for fixing the cooling element 3 on the fixing seat 4, without the need for significant structural improvements to the cover body 1, thereby saving costs. Furthermore, the mounting opening 45 can position the cooling element 3, further improving the efficiency of the installation of the cooling element 3. A sealing element 9 is provided between the cooling element 3 and the fixing seat 4. When the two are fixed, the sealing element 9 is squeezed to seal the gap between the two, greatly reducing the risk of coolant leakage. Furthermore, the presence of the sealing element 9 also increases the friction between the cooling element 3 and the fixing seat 4, making the two more firmly fixed and reducing the probability of the cooling element 3 coming loose.

[0059] Specifically, such as Figure 5 、 Figure 6As shown, the fixing base 4 is provided with a plurality of screw seats 44, so as to fasten the fixing base 4 to the cover 1 through screws. Of course, the fixing base 4 can also be fixed to the cover 1 by means of clamping, threading, etc., which are not limited here.

[0060] Preferably, if Figure 7 As shown, the cooling member 3 is a rotating body structure to reduce the difficulty of processing. Specifically, in one embodiment, the cooling member 3 is a columnar structure, and its lower end is a curved surface or an inclined surface to guide the liquid on the outer surface of the cooling member 3 to drip downward into the cooking cavity.

[0061] As a preferred embodiment of the present invention, Figure 2 、 Figure 3 、 Figure 4 As shown, the cover body 1 includes a lining cover 11 and a surface cover 12 located above the lining cover 11 , the fixing seat 4 is fixed to the upper side of the lining cover 11 , the lining cover 11 is provided with an opening 111 for the cooling element 3 to pass through, and the cooling element 3 is sealed with the opening 111 .

[0062] The fixing seat 4 is located above the lining cover 11, and the cooling member 3 is sealed with the opening 111 of the lining cover 11, so that the fixing seat 4 and the water-cooling pipeline are located on the side of the lining cover 11 away from the cooking cavity, thereby reducing the probability of direct contact between the steam in the pot and the fixing seat 4 and the water-cooling pipeline, ensuring cleaning while also ensuring service life, avoiding steam erosion of the fixing seat 4 and components on the fixing seat 4, and ensuring the stability of the connection.

[0063] Furthermore, if Figure 4 As shown, a first stopper 32 and a second stopper 33 are provided on the outer peripheral side of the cooling member 3. The first stopper 32 is located on the upper side of the lining cover 11, and the second stopper 33 is located on the lower side of the lining cover 11. The first stopper 32 and the second stopper 33 clamp the lining cover 11.

[0064] The first stopper 32 and the second stopper 33 clamp the lining cover 11 up and down, thereby limiting the cooling element 3 in the up and down directions.

[0065] It should be noted that this embodiment does not limit the assembly method of the first stop portion 32 and the second stop portion 33 and the cooling member 3. For example, the first stop portion 32 and the second stop portion 33 can be integrally formed with the cooling member 3, that is, the two are stop ribs protruding from the outer peripheral side of the cooling member 3. For another example, the first stop portion 32 and the second stop portion 33 can be components independent of the cooling member 3, and are subsequently assembled to the outer peripheral side of the cooling member 3. Of course, the first stop portion 32 and the second stop portion 33 can also be assembled in different ways. For example, in one embodiment, as Figure 4As shown, the first stopper 32 is a gasket sleeved on the outer periphery of the cooling element 3 and is located above the lining cover 11. The second stopper 33 is a rib protruding from the outer periphery of the cooling element 3 and is located below the lining cover 11. Figure 4 As shown, the lining cover 11 is provided with an avoidance groove at the lower edge of the opening 111 , so that the second stopper 33 is accommodated in the avoidance groove, thereby improving the limiting effect on the cooling element 3 .

[0066] Specifically, such as Figure 4 、 Figure 7 As shown, the outer surface of the cooling member 3 further has a threaded section 34 , which is located above the first stop portion 32 . A nut 15 is fixed to the outer periphery of the threaded section 34 , and the gasket is clamped and fixed by the nut 15 and the lining cover 11 .

[0067] Preferably, if Figure 7 As shown, the outer peripheral side of the cooling element 3 is provided with a rotation-stopping rib 35 , and the edge of the opening 111 is provided with a matching rib. The rotation-stopping rib 35 and the matching rib cooperate to limit the rotation of the cooling element 3 relative to the lining cover 11 .

[0068] The anti-rotation rib 35 and the matching rib cooperate to limit the rotation of the cooling element 3, so that the cooling element 3 cannot rotate relative to the lining cover 11, thereby ensuring the stability of the cooling element 3 and the connection stability of the water cooling pipeline.

[0069] Specifically, such as Figure 7 As shown, the anti-rotation rib 35 protrudes from the outer circumference of the cooling element 3, and its cross-section is a non-circular structure with edges. The mating rib at the opening 111 is adapted to the cross-sectional shape of the anti-rotation rib 35, so that the two cooperate to limit the rotation of the cooling element 3. Of course, the anti-rotation rib 35 and the mating rib can also have other structures, for example, one of them is a protrusion structure and the other is a groove structure, etc., which is not limited here.

[0070] In a preferred embodiment, Figure 4 As shown, a positioning rib 43 is arranged around the outer periphery of the installation opening 45, and the sealing member 9 includes a first sealing lip 91 and a second sealing lip 92. The first sealing lip 91 is located above the cooling member 3, and the second sealing lip 92 surrounds the outer periphery of the cooling member 3.

[0071] The first sealing lip 91 of the seal 9 is located between the top of the cooling element 3 and the fixed seat 4, sealing the gap there. The second sealing lip 92 is located between the outer peripheral side of the cooling element 3 and the positioning rib 43, sealing the gap there. This not only improves the sealing effect but also makes it difficult for the cooling element 3 to move relative to the fixed seat 4 under the action of friction, ensuring the connection and position stability of the cooling element 3 and the fixed seat 4. At the same time, the positioning rib 43 surrounds the outer periphery of the second sealing lip 92 and also acts as a limiter for the seal 9, preventing the seal 9 from shifting under the action of squeezing.

[0072] In addition, the positioning ribs 43 can also play a positioning role in the installation of the cooling element 3, thereby reducing the difficulty of installing the cooling element 3 and the fixing seat 4.

[0073] It should be noted that the present invention does not limit the fixing method of the cooling member 3 and the fixing seat 4. The cooling member 3 and the fixing seat 4 can be fixed by plug-in fitting to squeeze the sealing member 9, or by means of threads, screws, snap-fitting, etc.

[0074] Specifically, such as Figure 4 、 Figure 5 、 Figure 6 As shown, the fixing base 4 has a water inlet pipe 41 and a water outlet pipe 42. The water inlet 411 is located on the water inlet pipe 41, and the water outlet 421 is located on the water outlet pipe 42. The water inlet pipe 41 and the water outlet pipe 42 are located on opposite sides of the cooling element 3 and arranged horizontally. This allows for relatively free layout of the water cooling pipelines, with high design freedom and no structural or movement interference. The coolant enters the cooling chamber 31 from one side and flows out from the other side, which also extends the flow path within the cooling chamber 31 to a certain extent.

[0075] Preferably, if Figure 2 、 Figure 3 、 Figure 5 As shown, the fixing seat 4 is provided with a fixing column 47 extending upward, and the pot cover also includes an operating handle 7, a fork member 6 and a locking ring 8. The fork member 6 is provided on the fixing seat 4, and the operating handle 7 is used to drive the fork member 6 to rotate, so as to drive the locking ring 8 to rotate relative to the cover body 1.

[0076] To ensure safe pressure cooking, pressure cooking appliances require locking the lid and pot body during pressure cooking and unlocking them after pressure cooking. In the present invention, the lid and pot body are locked and unlocked by operating the handle 7 to rotate the fork member 6, which in turn drives the locking lid to rotate. The fixing base 4 not only serves as a mounting base for the cooling element 3 but also serves to secure the fork member 6, thereby integrating the functions of securing the cooling element 3 and the fork member 6. This provides the fixing base 4 with a wider range of functions, making it a multi-purpose piece, simplifying the internal structure of the pot lid, optimizing the internal space of the pot lid, and saving costs.

[0077] Specifically, the locking ring 8 is an annular structure, the center of which forms a clearance opening, and the cooling element 3 is located in the clearance opening.

[0078] As a preferred embodiment of the present invention, Figure 2 、 Figure 3 、 Figure 4 、 Figure 8As shown, the pot cover also includes a cooling core 5 arranged in the cooling cavity 31, the cooling core 5 is fixed to the fixing seat 4, and the cooling core 5 is provided with a separating rib 52, which separates the cooling cavity 31 into a water inlet cavity 311 and a water outlet cavity 312.

[0079] Specifically, the top of the cooling core 5 is fixed to the fixing seat 4 and extends downward, and the dividing rib 52 extends outward from the peripheral side of the cooling core 5 to divide the cooling chamber 31 into a water inlet chamber 311 and a water outlet chamber 312. There is a gap between the lower end of the cooling core 5 and the bottom wall of the cooling chamber 31 so that the water inlet chamber 311 and the water outlet chamber 312 are connected at the bottom.

[0080] Furthermore, if Figure 6 、 Figure 8 As shown, the separation rib 52 includes a main body 51 , which is arranged on the outer peripheral side of the main body 51 . The separation rib 52 has a vertical section 521 , and a limiting groove 46 cooperating with the vertical section 521 is provided in the installation opening 45 to position the cooling core 5 .

[0081] Specifically, during assembly, the vertical section 521 of the separation rib 52 is inserted into the limiting groove 46, and the two cooperate to form a rotation limit for the cooling core 5. Figure 4 As shown, the cooling core 5 is now fastened to the fixing base 4 by screws, and since the cooling core 5 is restricted from rotating, the cooling core 5 will not rotate during the process of tightening the screws.

[0082] This embodiment does not limit the structure of the separation rib 52. In one embodiment, the separation rib 52 extends vertically along the axis of the main body 51, so that a flow channel extending in the vertical direction is formed in both the water inlet cavity 311 and the water outlet cavity 312. In a preferred embodiment, Figure 3 、 Figure 8 As shown, there are two separating ribs 52 and they are arranged on both sides of the main body 51 along the radial direction of the main body 51. The separating rib 52 also has a spiral section 522 located below the vertical section 521. The spiral section 522 extends spirally along the axial direction of the main body 51.

[0083] The spirally arranged dividing ribs 52 not only divide the cooling chamber 31 into the water inlet chamber 311 and the water outlet chamber 312, but also limit the flow channels in the water inlet chamber 311 and the water outlet chamber 312 to a spiral shape, thereby further lengthening the flow channels in the water inlet chamber 311 and the water outlet chamber 312, further increasing the flow path of the coolant in the water inlet chamber 311 and the water outlet chamber 312, extending the residence time of the coolant in the cooling chamber 31, and improving the heat exchange effect between the coolant and the high-temperature gas in the pot.

[0084] Preferably, if Figure 4As shown, the pot cover also includes a cooling core 5 arranged in the cooling cavity 31, the cooling core 5 is fixed to the fixing seat 4, and a sealing ring 53 is provided between the cooling core 5 and the fixing seat 4, and the cooling core 5 and / or the fixing seat 4 is provided with a receiving groove 54 for accommodating the sealing ring 53.

[0085] like Figure 4 、 Figure 8 As shown, the top of the cooling core 5 extends into the installation opening 45 and is tightly connected to the fixing seat 4. The accommodating groove 54 is provided on the top surface of the cooling core 5. The setting of the accommodating groove 54 can strengthen the limiting effect of the sealing ring 53 and prevent the sealing ring 53 from being subjected to excessive extrusion force and causing position displacement.

[0086] Of course, the accommodating groove 54 may also be provided on the side of the fixing base 4 facing the cooling core 5 , or the accommodating groove 54 may be provided on both the cooling core 5 and the fixing base 4 , which is not limited here.

[0087] Preferably, if Figure 1 、 Figure 2 As shown, the pot cover is also provided with a water tank 14 and a water pump 13 so that the water cooling assembly is completely located in the pot cover, shortening the water cooling pipeline and improving the cooling efficiency.

[0088] Anything not described in this utility model can be achieved by adopting or drawing on existing technologies.

[0089] 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.

[0090] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of the claims of the present invention.

Claims

1. A water-cooled pressure cooking appliance comprising a pot cover and a pot body, wherein the pot cover comprises a cover body and an inner cover fixed below the cover body, characterized in that: The pot cover also includes a fixing seat and a cooling element. The fixing seat is fixed to the cover body. The lower side of the fixing seat has an installation opening. The cooling element is fixed to the installation opening and extends downward to pass through the inner cover. A cooling cavity is provided inside the cooling element. The fixing seat is provided with a water inlet and a water outlet connected to the cooling cavity. The cooling cavity has a water inlet cavity and a water outlet cavity inside. The water inlet cavity and the water outlet cavity are connected at the bottom of the cooling cavity. A sealing element is provided between the cooling element and the fixing seat.

2. The water-cooled pressure cooking appliance according to claim 1, characterized in that The cover body includes a lining cover and a surface cover located above the lining cover. The fixing seat is fixed to the upper side of the lining cover. The lining cover is provided with an opening for the cooling element to pass through. The cooling element is sealed and matched with the opening.

3. The water-cooled pressure cooking appliance according to claim 2, characterized in that: A first stopper and a second stopper are provided on the outer circumference of the cooling member. The first stopper is located on the upper side of the lining cover, and the second stopper is located on the lower side of the lining cover. The first stopper and the second stopper clamp the lining cover.

4. The water-cooled pressure cooking appliance according to claim 2, characterized in that: The outer peripheral side of the cooling element is provided with a rotation-stopping rib, and the edge of the opening is provided with a matching rib. The rotation-stopping rib and the matching rib cooperate to limit the rotation of the cooling element relative to the lining cover.

5. The water-cooled pressure cooking appliance according to claim 1, characterized in that Positioning ribs are arranged around the outer periphery of the installation opening, and the sealing member includes a first sealing lip and a second sealing lip. The first sealing lip is located above the cooling member, and the second sealing lip surrounds the outer periphery of the cooling member.

6. The water-cooled pressure cooking appliance according to claim 1, characterized in that The fixing seat is provided with a fixing column extending upward, and the pot cover also includes an operating handle, a fork member and a locking ring. The fork member is provided on the fixing seat, and the operating handle is used to drive the fork member to rotate, so as to drive the locking ring to rotate relative to the cover body.

7. The water-cooled pressure cooking appliance according to claim 1, characterized in that The pot cover also includes a cooling core arranged in the cooling cavity, the cooling core is fixed to the fixing seat, and the cooling core is provided with a separation rib, which separates the cooling cavity into the water inlet cavity and the water outlet cavity.

8. The water-cooled pressure cooking appliance according to claim 7, characterized in that: The separating rib includes a main body, the separating rib is arranged on the outer peripheral side of the main body, the separating rib has a vertical section, and a limiting groove matched with the vertical section is arranged in the installation opening to position the cooling core.

9. The water-cooled pressure cooking appliance according to claim 8, characterized in that There are two separating ribs which are arranged on both sides of the main body in a radial direction thereof. The separating rib further comprises a spiral section located below the vertical section. The spiral section extends in a spiral shape along the axial direction of the main body.

10. The water-cooled pressure cooking appliance according to claim 1, characterized in that The pot cover also includes a cooling core arranged in the cooling cavity, the cooling core is fixed to the fixing seat, a sealing ring is provided between the cooling core and the fixing seat, and the cooling core and / or the fixing seat are provided with a receiving groove for accommodating the sealing ring.

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