Pressure cooking utensil

Abstract

The pressure cooking utensil comprises a pot body and a pot cover, the pot cover is provided with a connecting end and an opening and closing end, the connecting end is connected to the pot body in a rotating mode, the opening and closing end is provided with a buckling part used for being locked with the pot body, the pot body comprises an outer cover and a middle ring located above the outer cover, and the pot body further comprises a reinforcing assembly. The reinforcing assembly comprises a locking piece located on the upper side of the middle ring and a reinforcing piece located on the lower side of the middle ring, the locking piece is provided with a locking part used for being matched with the buckling part, and at least part of the reinforcing assembly penetrates through the middle ring so that the locking piece and the reinforcing piece can be connected in a fastened mode. The locking piece is connected with the reinforcing piece, and when the locking piece is stressed, force can be transmitted to the reinforcing piece through the connecting position, so that the reinforcing piece and the locking piece jointly bear the acting force of the buckling part of the pot cover, and the risk of deformation or damage of the reinforcing piece or the locking piece is reduced. The reinforcing assembly penetrates through the middle ring and can position the locking piece and the middle ring, and the positioning accuracy of the locking piece and the middle ring is improved.

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] Pressure cooking appliances include pressure cookers, micro-pressure rice cookers, and the like. Some pressure cooking appliances have a lid that is rotatably connected to the pot body via a shaft, torsion spring, or other structure, allowing the lid to flip up and down relative to the pot body for opening and closing. The other end of the lid is locked to the pot body via a buckle or other structure.

[0003] During the pressure cooking process, since the air pressure in the pot is higher than the external atmospheric pressure, the gas in the pot will create an upward pushing force on the lid, and the movement of the front end of the lid is restricted by locking structures such as buckles. Therefore, the lid will exert a large force on the front end of the pot body. Since the locking parts of the pot body and the lid are mostly made of plastic material, the structural strength is relatively low. Therefore, when the force is too large, the risk of breakage or damage is greatly increased. At the same time, the large pulling force will cause the seal between the front end of the lid and the front end of the pot body to be destroyed, resulting in gas leakage in the pot and inability to press up normally.

[0004] Therefore, some pressure cooking appliances are provided with a metal clip at the front end of the pot body to ensure the strength of the locking engagement with the pot lid. The metal clip is usually assembled with the middle ring of the pot body. However, the assembly accuracy of the metal clip and the middle ring is difficult to guarantee, and slight deviation is prone to occur, thereby affecting the airtightness between the pot lid and the front end of the pot body.

[0005] Furthermore, to ensure the structural strength of the front end of the center ring, some pressure cooking appliances are equipped with a reinforcement plate at the front end of the center ring to provide support. However, the reinforcement plate and the metal buckle are not structurally connected; they are independent components fixed to the center ring. As a result, when the metal buckle is subjected to force, the reinforcement plate cannot share the force, and the force is completely borne by the metal buckle. Therefore, under strong pulling force, the metal buckle is easily deformed and disengaged. Utility Model Content

[0006] The utility model provides a pressure cooking appliance to solve the problems that the assembly accuracy of the metal buckle and the middle ring is difficult to ensure, the assembly error is large, the airtightness between the pot cover and the pot body is affected, and the force after pressing is concentrated on the metal buckle, which causes the metal buckle to be easily deformed and thus disengaged.

[0007] The technical solution adopted by this utility model is:

[0008] A pressure cooking appliance comprises a pot body and a pot lid, the pot lid having a connecting end and an opening and closing end, the connecting end being rotatably connected to the pot body, the opening and closing end being provided with a snap portion for locking with the pot body, the pot body comprising an outer cover and a middle ring located above the outer cover, the pot body further comprising a reinforcing assembly, the reinforcing assembly comprising a locking piece located on the upper side of the middle ring, and a reinforcing piece located on the lower side of the middle ring, the locking piece being provided with a locking portion for cooperating with the snap portion, and at least a portion of the reinforcing assembly passing through the middle ring to securely connect the locking piece and the reinforcing piece.

[0009] The pressure cooking device of the present invention also has the following additional technical features:

[0010] The reinforcement assembly also includes a fastener, the locking piece and the reinforcement piece are correspondingly provided with fixing holes, the middle ring is provided with a through hole, and the fixing hole and the through hole are coaxially arranged so that the fastener passes through the fixing hole and the through hole to fasten the locking piece, the middle ring and the reinforcement piece.

[0011] The locking member is provided with a first fixing portion extending downward, which extends to the lower side of the middle ring to be fastened to the reinforcement member; or, the reinforcement member is provided with a second fixing portion extending upward, which extends to the upper side of the middle ring to be fastened to the locking member.

[0012] The middle ring comprises a panel, which forms a placement opening for accommodating the inner container, and the first fixing portion or the second fixing portion passes through the panel from the placement opening.

[0013] One of the middle ring and the locking piece is provided with a positioning column, and the other one is provided with a positioning hole plugged with the positioning column, so that the locking piece and the middle ring are plugged and positioned.

[0014] The positioning column is provided with a matching opening, and the reinforcement component further comprises a fastener, which passes through the positioning hole and is fastened to the positioning column and the reinforcement.

[0015] The upper surface of the middle ring is provided with an accommodating groove, the shape of the accommodating groove is adapted to the shape of the locking piece, and the locking piece is accommodated in the accommodating groove.

[0016] The locking portion includes a hook for cooperating with the buckle portion. The locking piece is also provided with a cooperating flange. The upper surface of the middle ring is provided with a cooperating rib. The cooperating flange rests on the cooperating rib, and the hook is located on both sides of the cooperating flange.

[0017] The middle ring includes a panel, which forms a placement opening for accommodating the inner liner. The reinforcement is arranged corresponding to the opening and closing ends and extends along the circumference of the panel to surround the outer periphery of a partial area of ​​the placement opening. The reinforcement contacts the panel through a contact plane.

[0018] The reinforcement member includes a contact wall and a reinforcement flange folded downward from an edge of the contact wall, and the contact wall abuts against the lower surface of the panel.

[0019] Due to the adoption of the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0020] 1. In the present invention, at least a portion of the reinforcing assembly passes through the middle ring to securely connect the locking member and the reinforcing member. This, on the one hand, connects the locking member and the reinforcing member, and makes the two related. When the locking member is subjected to force, the force can be transmitted to the reinforcing member through the connection, so that the reinforcing member and the locking member jointly bear the force of the lid buckle part, making the force more dispersed, alleviating the force on a single component, improving the structural reinforcement effect, and reducing the risk of deformation or damage of the reinforcing member or the locking member.

[0021] In addition, the reinforcement component passing through the middle ring can play a positioning role for the locking part and the middle ring, improve the positioning accuracy of the locking part and the middle ring, reduce assembly errors, and then, on the basis of ensuring reliable cooperation between the locking part and the pot lid buckle, improve the sealing between the pot lid and the front end of the pot body, reduce the probability of air leakage during pressure cooking, and ensure that pressure cooking is carried out reliably.

[0022] Furthermore, the tight connection between the locking and reinforcing members creates a clamping force on the center ring, firmly clamping it from both sides. This not only improves contact between the locking and reinforcing members and the center ring, but also enhances support on both sides, reducing the likelihood of deformation. Furthermore, it further stabilizes the relative position of the three elements and provides a more secure fixation, improving assembly precision and connection stability.

[0023] 2. As a preferred embodiment of the present invention, the reinforcement assembly further comprises a fastener, the locking member and the reinforcement member are provided with corresponding fixing holes, the middle ring is provided with a through hole, and the fixing hole and the through hole are coaxially arranged so that the fastener passes through the fixing hole and the through hole to fasten the locking member, the middle ring, and the reinforcement member together. By fastening the three together by passing the fastener through the reinforcement member, the middle ring, and the locking member, on the one hand, a single fastener can simultaneously secure the three, reducing the difficulty of securing, simplifying the assembly steps, and ensuring good assembly accuracy and stability among the three. On the other hand, the fixing hole and the through hole can play a positioning role in the assembly of the three, further improving the positional accuracy among the three.

[0024] 3. As a preferred embodiment of the present invention, one of the center ring and the locking element is provided with a positioning post, and the other is provided with a positioning hole that plugs into and mates with the positioning post, thereby positioning the locking element and the center ring. Before the locking element and the center ring are secured, the positioning post and the positioning hole engage to achieve positioning of the locking element and the center ring. After the two are engaged, the positioning post is stopped by the edge of the positioning hole, preventing the locking element from lateral displacement relative to the center ring. This not only improves positioning accuracy, but also prevents significant displacement of the locking element relative to the center ring during the tightening process, facilitating subsequent assembly.

[0025] 4. As a preferred embodiment of the present invention, the locking portion includes a hook for cooperating with the snap portion, the locking member is further provided with a cooperating flange, the upper surface of the middle ring is provided with a cooperating rib, the cooperating flange rests on the cooperating rib, and the hooks are located on both sides of the cooperating flange. The hooks can be hooked and cooperated with the snap portion to lock the pot lid and the pot body, preventing the pot lid from popping open while ensuring the airtightness between the pot lid and the pot body, thereby ensuring normal pressure cooking. The cooperating flange rests on the cooperating rib, which not only improves the stability of the locking member, but also further improves the positioning effect of the locking member, ensuring the positional accuracy of the locking member and the middle ring. At the same time, the hooks are located on both sides of the cooperating flange, so that the force exerted by the snap portion on the pot lid on the locking member is evenly distributed on both sides of the locking member, making the force on the locking member more dispersed and uniform, and reducing the possibility of deformation of the locking member.

[0026] 5. As a preferred embodiment of the present invention, the middle ring includes a panel, and the panel forms a placement opening for accommodating the inner pot. The reinforcement is arranged corresponding to the opening and closing end, and extends along the circumference of the panel to surround the outer periphery of a portion of the placement opening, and the reinforcement contacts the panel through a contact plane. The reinforcement contacts the lower side of the panel through a large-area plane. On the one hand, it can improve the contact stability, enable the reinforcement to support the panel more stably, increase the force-bearing area, make the force more dispersed on the plane, and reduce local force. On the other hand, it is more conducive to the transmission of force and reduces the possibility of local deformation of the reinforcement and panel. At the same time, the reinforcement extends along the circumference of the panel, which can not only specifically improve the strength of the panel at the locking part, but also greatly improve the structural strength of the front of the panel, so that the front end of the pot body as a whole is not easy to be deformed or damaged, and the overall strength of the panel is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0028] Figure 1 is a cross-sectional view of a pressure cooking device according to one embodiment of the present invention;

[0029] Figure 2 for Figure 1 Magnified view of area A in the middle;

[0030] Figure 3 This is an exploded view of the structure of the middle ring in one embodiment of the present invention;

[0031] Figure 4 for Figure 3 Magnified view of area B in the middle;

[0032] Figure 5This is a structural diagram of a locking component in one embodiment of the present invention;

[0033] Figure 6 This is a schematic structural diagram of a reinforcement member according to one embodiment of the present invention;

[0034] Figure 7 This is a cross-sectional view of the middle ring in one embodiment of the present invention;

[0035] Figure 8 for Figure 7 Magnified view of area C in center.

[0036] in:

[0037] 1 pot body; 11 outer cover; 12 middle ring; 121 panel; 122 placement opening; 123 receiving groove; 124 positioning column; 125 through hole; 126 matching rib;

[0038] 2 pot cover; 21 buckle part;

[0039] 3 locking member; 31 locking portion; 32 fixing hole; 33 positioning hole; 34 matching flange;

[0040] 4 reinforcement member; 41 contact wall; 42 reinforcement flange. DETAILED DESCRIPTION

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 8 As shown, a pressure cooking appliance includes a pot body 1 and a pot cover 2, the pot cover 2 has a connecting end and an opening and closing end, the connecting end is rotatably connected to the pot body 1, and the opening and closing end is provided with a snap portion 21 for locking with the pot body 1, the pot body 1 includes an outer cover 11 and a middle ring 12 located above the outer cover 11, the pot body 1 also includes a reinforcement assembly, the reinforcement assembly includes a locking member 3 located on the upper side of the middle ring 12, and a reinforcement member 4 located on the lower side of the middle ring 12, the locking member 3 is provided with a locking portion 31 for cooperating with the snap portion 21, and at least a portion of the reinforcement assembly passes through the middle ring 12 to fasten the locking member 3 and the reinforcement member 4.

[0047] It should be noted that, depending on the product, the outer cover 11 can be made of plastic or metal. The middle ring 12 is made of plastic, which has relatively low strength. Furthermore, the locking member 3 is provided on the middle ring 12 and directly engages with the snap portion 21 on the pot lid 2. When the pot lid 2 is pushed upward under the action of air pressure, the snap portion 21 directly applies force to the middle ring 12, thereby risking deformation or damage to the front end of the middle ring 12. Preferably, the locking member 3 and the reinforcement member 4 are both made of metal to provide high strength, prevent loosening from the snap portion 21, and provide good support for the middle ring 12.

[0048] In the present invention, at least part of the reinforcing assembly passes through the middle ring 12 to fasten the locking member 3 and the reinforcing member 4. On the one hand, the locking member 3 and the reinforcing member 4 are connected, so that the two are associated. When the locking member 3 is subjected to force, the force can be transmitted to the reinforcing member 4 through the connection, so that the reinforcing member 4 and the locking member 3 jointly bear the force of the buckle part 21 of the pot cover 2, making the force more dispersed, alleviating the force on a single component, improving the structural reinforcement effect, and reducing the risk of deformation or damage of the reinforcing member 4 or the locking member 3.

[0049] In addition, the reinforcing component passing through the middle ring 12 can play a positioning role for the locking member 3 and the middle ring 12, improve the positioning accuracy of the locking member 3 and the middle ring 12, and reduce assembly errors. Then, on the basis of ensuring that the locking member 3 and the pot cover 2 are reliably engaged, the sealing performance of the pot cover 2 and the front end of the pot body 1 is improved, the probability of air leakage during pressure cooking is reduced, and reliable pressure cooking is ensured.

[0050] Furthermore, the tight connection between the locking member 3 and the reinforcing member 4 creates a clamping force on the center ring 12, firmly clamping the center ring 12 from both the top and bottom. This, on the one hand, improves the contact between the locking member 3 and the reinforcing member 4 and the center ring 12, enhancing the support effect on both the top and bottom of the center ring 12 and reducing the possibility of deformation of the center ring 12 under stress. On the other hand, it further stabilizes the relative position of the three and makes the fixation more secure, improving assembly accuracy and connection stability.

[0051] It should be noted that the present invention does not limit the connection method of the locking member 3 and the reinforcement member 4, which includes but is not limited to the situations listed in the following embodiments:

[0052] Implementation method 1: In this implementation method, Figure 3 、 Figure 7 、 Figure 8 As shown, the reinforcement assembly also includes a fastener (not shown in the figure), the locking member 3 and the reinforcement member 4 are correspondingly provided with fixing holes 32, the middle ring 12 is provided with a through hole 125, and the fixing hole 32 and the through hole 125 are coaxially arranged so that the fastener passes through the fixing hole 32 and the through hole 125 to fasten the locking member 3, the middle ring 12 and the reinforcement member 4.

[0053] Fasteners are passed through the reinforcement member 4, the middle ring 12, and the locking member 3 to secure the three components together. This allows a single fastener to secure all three components simultaneously, reducing the difficulty of securing, simplifying the assembly process, and ensuring good assembly precision and stability. Furthermore, the fixing holes 32 and through-holes 125 provide positioning for the assembly of the three components, further improving their positional accuracy.

[0054] Preferably, the fastener is a screw, and the three are tightened and fixed by the screw. Under the action of the pre-tightening force of the screw, the reinforcement member 4 and the locking member 3 will tightly clamp the middle ring 12 from the upper and lower sides of the middle ring 12.

[0055] Embodiment 2: In this embodiment, the locking member 3 is provided with a first fixing portion extending downward, and the first fixing portion extends to the lower side of the middle ring 12 to be fastened to the reinforcement member 4; or, the reinforcement member 4 is provided with a second fixing portion extending upward, and the second fixing portion extends to the upper side of the middle ring 12 to be fastened to the locking member 3.

[0056] In a specific embodiment, the first fixing portion is a clamping arm extending downward, the clamping arm is provided with a clamping structure, the reinforcement 4 is provided with a matching structure that matches the clamping structure, and the clamping arm passes through the middle ring 12 to fix the clamping structure with the matching structure.

[0057] Of course, a fixing structure such as a clamping arm can also be provided on the reinforcement member 4 to form a second fixing portion, which is passed upward through the middle ring 12 and fixed with the locking member 3 .

[0058] Fixing by means of snap connection or the like can save the use of fasteners and make the fixing of the locking member 3 and the reinforcing member 4 simpler and more convenient and quicker to operate. After the two are fixed, a clamping force is formed on the centering ring 12.

[0059] This embodiment does not limit the way in which the first fixing portion or the second fixing portion passes through the middle ring 12. In one embodiment, the panel 121 of the middle ring 12 is provided with a through hole, and the first fixing portion or the second fixing portion passes through the through hole. Figure 3 As shown, the middle ring 12 includes a panel 121, which forms a placement opening 122 for accommodating the inner pot, and the first fixing part or the second fixing part passes through the panel 121 from the placement opening 122. The placement opening 122 is used to place the inner pot inside the pot body 1, or to take it out from the pot body 1. In order to ensure that the inner pot can enter and exit smoothly, the diameter of the placement opening 122 must be larger than the maximum outer diameter of the waist of the inner pot, so that there is a gap between the placement opening 122 and the outer peripheral side of the inner pot. The first fixing part or the second fixing part passes through the middle ring 12 through the placement opening 122, which can avoid opening holes in the panel 121, reduce the difficulty of processing, and improve the structural integrity of the panel 121, which helps to ensure the self-strength of the panel 121. Moreover, the first fixing part and the second fixing part pass through the edge of the placement opening 122, which will not affect the placement of the inner pot, so that the first fixing part and the second fixing part will not interfere with the inner pot.

[0060] As a preferred embodiment of the present invention, Figure 3 、 Figure 4 、 Figure 5As shown, one of the middle ring 12 and the locking piece 3 is provided with a positioning column 124, and the other is provided with a positioning hole 33 that is plugged into and matched with the positioning column 124, so that the locking piece 3 and the middle ring 12 are plugged into and positioned.

[0061] Before fixing the locking part 3 and the middle ring 12, the locking part 3 and the middle ring 12 can be positioned by plugging and matching the positioning column 124 and the positioning hole 33. After the two are matched, the positioning column 124 is stopped by the edge of the positioning hole 33, so that the locking part 3 cannot be laterally displaced relative to the middle ring 12, which not only improves the positioning accuracy, but also prevents the locking part 3 from being significantly displaced relative to the middle ring 12 during the process of tightening the locking part 3 and the middle ring 12, thereby facilitating subsequent assembly.

[0062] In a specific embodiment, Figures 3 to 5 As shown, positioning posts 124 are provided on the center ring 12, and corresponding positioning holes 33 are provided on the locking member 3. Since the center ring 12 is made of plastic and the locking member 3 is made of metal, plastic is easier to process into a columnar structure, thus reducing processing difficulty and improving product yield and production efficiency. Of course, positioning posts 124 can also be provided on the locking member 3, with corresponding positioning holes 33 provided on the center ring 12, but this is not a limitation here.

[0063] Preferably, the locking member 3 and the middle ring 12 are connected by screws to further improve the contact effect and structural strength of the two under the action of the pre-tightening force of the screws. However, this embodiment does not limit the fastening position of the screws or other fasteners.

[0064] In a preferred embodiment, the positioning column 124 is provided with a mating opening, and the reinforcement assembly further includes a fastener, which passes through the positioning hole 33 and is fastened to the positioning column 124 and the reinforcement 4 .

[0065] Positioning post 124 and positioning hole 33 not only serve as positioning elements before assembly, but also as securing elements. Passing a fastener through positioning hole 33 and securing post 124 ensures that the securing and positioning positions coincide, significantly improving post-fixing accuracy. Simultaneously, the fastener also secures reinforcement 4, allowing a single fastener to connect all three elements. This improves positioning accuracy, reduces assembly complexity, and saves costs.

[0066] In another embodiment, Figure 3 、 Figure 4 As shown, the locking member 3 and the reinforcement member 4 are provided with corresponding fixing holes 32, and the middle ring 12 is provided with a through hole 125. The fixing holes 32 and through hole 125 are coaxially arranged and offset from the positioning post 124 and positioning hole 33. Fasteners pass through the fixing holes 32 and through hole 125 to securely connect the locking member 3, the middle ring 12, and the reinforcement member 4. This allows the locking member 3 and the middle ring 12 to be positioned separately from the fastening position, facilitating assembly operations.

[0067] Preferably, the upper surface of the middle ring 12 is provided with a receiving groove 123, which matches the shape of the locking element 3 and is accommodated within the receiving groove 123. The engagement of the locking element 3 with the receiving groove 123, on the one hand, further improves the positioning of the locking element 3 and enhances the relative positional accuracy of the locking element 3 and the middle ring 12. On the other hand, the walls of the receiving groove 123 also act as a lateral limiter for the locking element 3, preventing lateral movement or deformation of the locking element 3 when subjected to force, which could cause the position of the locking portion 31 to change, affecting its locking effect with the snap portion 21 and the sealing performance.

[0068] As a preferred embodiment, Figure 5 As shown, the locking portion 31 includes a hook for cooperating with the buckle portion 21, and the locking component 3 is also provided with a cooperating flange 34. The upper surface of the middle ring 12 is provided with a cooperating rib 126. The cooperating flange 34 rests on the cooperating rib 126, and the hook is located on both sides of the cooperating flange 34.

[0069] The hooks engage with the snap portion 21 to lock the lid 2 to the pot body 1, preventing the lid 2 from popping open while ensuring airtightness between the lid 2 and pot body 1, thereby ensuring normal pressure cooking. The mating flange 34 rests on the mating rib 126, not only improving the stability of the locking member 3 but also further enhancing the positioning of the locking member 3, ensuring the positional accuracy of the locking member 3 and the center ring 12. Furthermore, the hooks are located on both sides of the mating flange 34, so that the force exerted by the snap portion 21 on the lid 2 on the locking member 3 is evenly distributed on both sides of the locking member 3, making the force on the locking member 3 more dispersed and uniform, and reducing the possibility of deformation of the locking member 3.

[0070] Preferably, if Figure 3 、 Figure 6 As shown, the middle ring 12 includes a panel 121, which encloses a placement opening 122 for accommodating the inner liner. The reinforcement 4 is arranged corresponding to the opening and closing ends, and extends along the circumference of the panel 121 to surround the outer periphery of a partial area of ​​the placement opening 122. The reinforcement 4 contacts the panel 121 through a contact plane.

[0071] The reinforcement 4 is in contact with the lower side of the panel 121 through a large surface area. On the one hand, this can improve contact stability, allowing the reinforcement 4 to more stably support the panel 121, increase the force-bearing area, and disperse the force on the plane, thereby reducing local force. On the other hand, it is more conducive to the transmission of force and reduces the possibility of local deformation of the reinforcement 4 and the panel 121. At the same time, the reinforcement 4 extends along the circumference of the panel 121, which not only can specifically improve the strength of the panel 121 at the locking member 3, but also can greatly improve the structural strength of the front of the panel 121, making the front end of the pot body 1 less prone to deformation or damage as a whole, thereby improving the overall strength of the panel 121.

[0072] Specifically, such as Figure 3 、 Figure 6 As shown, the reinforcement 4 extends from the front end of the panel 121 to both sides along the circumference of the panel 121. The reinforcement 4 can be located in the front area of ​​the panel 121 (not exceeding the center line of the panel 121), or it can completely surround the placement opening 122, so that the reinforcement 4 is annular and provides support for a circle of the panel 121.

[0073] Further, if Figure 2 、 Figure 6 As shown, the reinforcement member 4 includes a contact wall 41 and a reinforcement flange 42 folded downward from the edge of the contact wall 41 . The contact wall 41 abuts against the lower surface of the panel 121 .

[0074] The contact wall 41 is positioned horizontally to abut against the lower surface of the panel 121 of the center ring 12, creating a large contact area. However, due to its large, plate-like structure, the contact wall 41 exhibits relatively low structural strength. The provision of downwardly folded reinforcing flanges 42 at the edges of the contact wall 41 significantly improves the overall strength of the reinforcement 4, enabling it to better support the center ring 12 and reducing the risk of deformation or damage to the reinforcement 4.

[0075] At the same time, the reinforced flange 42 is folded downward, which ensures the contact effect between the contact wall 41 and the lower surface of the panel 121, and at the same time reasonably utilizes the internal space of the pot body 1.

[0076] It should be noted that the pressure cooking appliance of the present invention can be a high-pressure cooking appliance, such as a pressure cooker, or a micro-pressure cooking appliance, such as a micro-pressure rice cooker, as long as it can cook in an environment higher than atmospheric pressure.

[0077] Anything not described in this utility model can be achieved by adopting or drawing on existing technologies.

[0078] 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.

[0079] 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 has a connecting end and an opening and closing end, wherein the connecting end is rotatably connected to the pot body, and the opening and closing end is provided with a snap portion for locking with the pot body, characterized in that: The pot body includes an outer cover and a middle ring located above the outer cover. The pot body also includes a reinforcement assembly. The reinforcement assembly includes a locking piece located on the upper side of the middle ring and a reinforcement piece located on the lower side of the middle ring. The locking piece is provided with a locking portion for cooperating with the snap portion. At least a portion of the reinforcement assembly passes through the middle ring to securely connect the locking piece and the reinforcement piece.

2. The pressure cooking device according to claim 1, wherein The reinforcement assembly also includes a fastener, the locking member and the reinforcement member are correspondingly provided with fixing holes, the middle ring is provided with a through hole, and the fixing hole and the through hole are coaxially arranged so that the fastener passes through the fixing hole and the through hole to fasten the locking member, the middle ring and the reinforcement member.

3. The pressure cooking appliance according to claim 1, wherein The locking member is provided with a first fixing portion extending downward, and the first fixing portion extends to the lower side of the middle ring to be fastened to the reinforcement member; or, The reinforcement member is provided with a second fixing portion extending upward, and the second fixing portion extends to the upper side of the middle ring to be fastened to the locking member.

4. The pressure cooking appliance according to claim 3, wherein The middle ring includes a panel, which forms a placement opening for accommodating the inner container, and the first fixing portion or the second fixing portion passes through the panel from the placement opening.

5. The pressure cooking device according to claim 1, wherein One of the middle ring and the locking piece is provided with a positioning column, and the other is provided with a positioning hole plugged with the positioning column, so that the locking piece and the middle ring are plugged and positioned.

6. The pressure cooking appliance according to claim 5, wherein The positioning column is provided with a matching opening, and the reinforcement component further includes a fastener, which passes through the positioning hole and is fastened to the positioning column and the reinforcement.

7. The pressure cooking appliance according to claim 5, wherein The upper surface of the middle ring is provided with an accommodating groove, the accommodating groove is adapted to the shape of the locking member, and the locking member is accommodated in the accommodating groove.

8. The pressure cooking appliance according to claim 1, wherein The locking portion includes a hook for cooperating with the buckle portion, and the locking component is also provided with a cooperating flange. The upper surface of the middle ring is provided with a cooperating rib, the cooperating flange rests on the cooperating rib, and the hook is located on both sides of the cooperating flange.

9. The pressure cooking appliance according to claim 1, wherein The middle ring includes a panel, which forms a placement opening for accommodating the inner liner. The reinforcement is arranged corresponding to the opening and closing ends and extends along the circumference of the panel to surround the outer periphery of the placement opening area. The reinforcement contacts the panel through a contact plane.

10. The pressure cooking appliance according to claim 9, wherein The reinforcement member includes a contact wall and a reinforcement flange folded downward from an edge of the contact wall, and the contact wall abuts against the lower surface of the panel.

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