Pressure cooking utensil

Abstract

The pressure cooking utensil comprises a pot body, a pot cover and an inner container arranged in the pot body, the pot body comprises a middle ring, the middle ring is provided with an opening for the inner container to pass through, the upper side of the middle ring is further provided with a pressure bearing ring, and the pressure bearing ring is provided with a pressure bearing portion and an avoiding portion in the circumferential direction of the pressure bearing ring. The upper edge of the pressure-bearing part is higher than the upper edge of the avoiding part, the pressure-bearing part is provided with a pressure-bearing plane, the opening edge of the inner container abuts against the pressure-bearing plane, the pressure cooking utensil further comprises a reinforcing assembly, and the reinforcing assembly is fixed to the middle ring and corresponds to the pressure-bearing part. The opening edge of the inner container makes contact with the pressure bearing part, and a gap exists between the opening edge of the inner container and the receding part, so that when the interior of the pot is pressed upwards, the inner container exerts downward acting force on the pressure bearing part and does not make contact with the receding part, and the supporting force bearing point of the pressure bearing ring on the inner container is concentrated on the pressure bearing part. The area where the inner container exerts acting force on the pressure bearing ring is easier to determine, the area can be conveniently subjected to structural enhancement design, the structural design difficulty is reduced, and the cost 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] Pressure cooking appliances usually include a pot body, a lid, and an inner pot placed inside the pot body. When the lid is closed over the pot body, the lid and the inner pot form a cooking cavity. During the pressure cooking process, since the air pressure in the cooking cavity is higher than the external atmospheric pressure, the gas in the pot will form an upward pushing force on the lid, and at the same time, it will also form a downward pushing force on the inner pot, causing the inner pot to form a downward movement trend.

[0003] The pot body includes an outer cover and a central ring located above the outer cover. The central ring defines an opening for removing and placing the inner pot. The rim of the inner pot is provided with an outer flange that rests on the central ring to support the inner pot. However, the central ring is typically made of plastic, which has low structural strength. When subjected to the downward force of the outer flange of the inner pot, it is prone to deformation or damage, resulting in a loss of seal between the inner pot and the pot lid, or a reduction in the support for the inner pot. Therefore, some pressure cooking appliances also have a reinforcement member above the central ring, so that the outer flange of the inner pot rests on the reinforcement member, which absorbs the downward force of the inner pot and provides support for the central ring.

[0004] However, the outer flange of the inner liner contacts the reinforcement along a circumferential circle, with the contact surface being a relatively large, annular surface. This makes it difficult to identify the concentrated stress areas of the reinforcement and the center ring, making it difficult to troubleshoot any problems. Furthermore, it's difficult to analyze the stress conditions of the center ring, making it impossible to design the stress-bearing surface of the center ring specifically to improve its structural strength.

[0005] Because the concentrated stress areas of the center ring and reinforcements are difficult to determine, the structural strength here cannot be effectively guaranteed, posing a risk of damage during high-pressure cooking. Furthermore, reinforcing the entire circumference of the center ring would not only waste materials and increase production costs, but would also significantly increase the overall size of the center ring, significantly increasing the weight of the entire machine, which is inconsistent with the development trend of miniaturization and lightweighting. Utility Model Content

[0006] The utility model provides a pressure cooking appliance to solve the problem that the contact area between the reinforcement on the upper side of the existing middle ring and the inner pot is large, it is difficult to determine the concentrated force area of ​​the middle ring, resulting in difficulty in structural reinforcement of the concentrated force area of ​​the middle ring, and poor support effect of the middle ring reinforcement and the middle ring on the inner pot.

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

[0008] A pressure cooking device comprises a pot body, a pot lid, and an inner pot placed inside the pot body. The pot body comprises a middle ring, which is provided with an opening for the inner pot to pass through. A pressure-bearing ring is also provided on the upper side of the middle ring, which surrounds the outer circumference of the opening. The pressure-bearing ring has a pressure-bearing portion and an avoidance portion along its own circumference. The upper edge of the pressure-bearing portion is higher than the upper edge of the avoidance portion and the pressure-bearing portion has a pressure-bearing plane. The rim of the inner pot rests on the pressure-bearing plane. The pressure cooking device also comprises a reinforcing assembly, which is fixed to the middle ring and arranged corresponding to the pressure-bearing portion.

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

[0010] The pressure ring has an extension section and a lug protruding outwardly from the extension section along the circumferential direction. The avoidance portion is located in the extension section, the pressure-bearing portion is located in the lug, and a reinforcing rib is provided on the lower side of the lug.

[0011] The pressure-bearing plane extends along the circumference of the pressure-bearing ring to the end of the lug. The upper surface of the lug is further provided with an escape area, and the upper surface of the escape area is lower than the pressure-bearing plane.

[0012] A fixing column is provided on the lower side of the lug, and the pressure cooking appliance further comprises a fastener which passes through the middle ring to be fastened with the fixing column.

[0013] The pressure-bearing portion includes a first pressure-bearing section and a second pressure-bearing section. The middle ring has a center line that divides the middle ring into a front area and a rear area. The first pressure-bearing section is located in the front area, and the second pressure-bearing section is located in the rear area.

[0014] The pot cover has a connecting end and an opening and closing end, the connecting end is rotatably connected to the rear area, and the opening and closing end can be locked with the front area. The reinforcement component includes a first reinforcement member fixed to the front area and a second reinforcement member fixed to the rear area.

[0015] The middle ring includes a panel, and the first reinforcement and the second reinforcement are both fixed to the lower side of the panel. The reinforcement assembly also includes a third reinforcement located between the panel and the pressure ring. The third reinforcement is located in the front area and abuts against the lower side of the pressure ring to support the pressure ring.

[0016] The pressure-bearing ring is provided with a positioning rib extending downwards, the positioning rib extends into the opening and cooperates with the edge of the opening to position the pressure-bearing ring.

[0017] The avoidance portion is provided with a downwardly concave gripping groove, and a gripping space for accommodating a hand is formed between the gripping groove and the edge of the inner container.

[0018] The rim of the inner container is provided with an outer flange, the lower surface of the outer flange is provided with a contact plane, and the contact plane is in abutment with the pressure-bearing plane.

[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, the pressure-bearing ring is located on the upper side of the middle ring and surrounds the opening. After the inner pot is placed in the pot body, the rim rests on the pressure-bearing ring. The pressure-bearing ring has a pressure-bearing portion and an escape portion along the circumferential direction, wherein the upper edge of the pressure-bearing portion is higher than the upper edge of the escape portion, so that the rim of the inner pot contacts the pressure-bearing portion, while there is a gap between the rim and the escape portion. Therefore, when the pot is pressurized, the inner pot applies a downward force to the pressure-bearing portion without contacting the escape portion, so that the support force point of the pressure ring on the inner pot is concentrated on the pressure-bearing portion. In the structural strength analysis and structural reinforcement design, only targeted improvements need to be made to the pressure-bearing portion. This makes it easier to determine the area where the inner pot exerts force on the pressure-bearing ring, and facilitates the structural reinforcement design of this area, which reduces the difficulty of structural design while also reducing costs.

[0021] In addition, the reinforcement component is arranged corresponding to the pressure-bearing part, so that the structural strength of the middle ring in the area where the pressure-bearing part is located is improved, thereby achieving a targeted increase in the strength of the local area of ​​the middle ring. On the basis of effectively improving the strength of the middle ring and the supporting effect on the inner pot, the volume of the reinforcement component is reduced, saving materials and costs, and helping to achieve the lightweight and miniaturization of the pot body.

[0022] 2. As a preferred embodiment of the present invention, the pressure-bearing ring has an extension section and a lug protruding laterally outward from the extension section along the circumferential direction. The avoidance portion is located in the extension section, the pressure-bearing portion is located in the lug, and a reinforcing rib is provided on the lower side of the lug. The lug protrudes outward relative to the extension section, so the width of the lug is greater than the width of the extension section. Providing the pressure-bearing portion on the lug can increase the width of the pressure-bearing portion, thereby increasing the area of ​​the pressure-bearing plane, increasing its contact area with the inner liner, and thus improving the support stability. At the same time, since the width of the lug is large, there is also sufficient space to provide a reinforcing rib. By providing a reinforcing rib on the lower side of the lug to further improve the structural strength of the lug, the pressure-bearing portion maintains structural stability when pressed by the edge of the inner liner, reducing the risk of deformation or damage.

[0023] 3. As a preferred embodiment of the present invention, the pressure-bearing portion includes a first pressure-bearing section and a second pressure-bearing section. The middle ring has a center line, which divides the middle ring into a front area and a rear area. The first pressure-bearing section is located in the front area, and the second pressure-bearing section is located in the rear area. The first pressure-bearing section and the second pressure-bearing section are respectively located in the front area and the rear area of ​​the middle ring, that is, the rim of the inner pot abuts against the pressure-bearing ring at the front and rear. Correspondingly, the avoidance portion is located on the left and right sides of the middle ring. Since there is a gap between the avoidance portion and the inner pot, the user can remove the inner pot from the pot body by inserting his hand or a tool into the gap. The gap is located on the left and right sides of the middle ring. After opening the lid, the user's left and right hands can directly grasp the inner pot from the left and right sides, making the operation more comfortable and improving the user experience.

[0024] 4. As a preferred embodiment of the present invention, the pot lid has a connecting end and an opening and closing end. The connecting end is rotatably connected to the rear region, and the opening and closing end can be locked with the front region. The reinforcement assembly includes a first reinforcement member fixed to the front region and a second reinforcement member fixed to the rear region. The front and rear regions are rotatably connected to the connecting end of the pot lid, and the front region is locked with the opening and closing end of the pot lid. During pressure cooking, the pot lid is pushed upward by the gas pressure within the pot. The pot lid is restricted by the front locking structure and the rear connecting structure, which also exerts significant forces on the front and rear regions of the middle ring. The first reinforcement member is provided in the front region and not only supports the middle ring region corresponding to the first pressure-bearing section, but also supports the middle ring region corresponding to the locking structure, thereby improving the overall strength of the front region. Similarly, the second reinforcement member is provided in the rear region and not only supports the middle ring region corresponding to the second pressure-bearing section, but also supports the middle ring region corresponding to the connecting structure, thereby improving the overall strength of the rear region. This allows the reinforcement component to serve multiple purposes, improving the overall structural strength of the front and rear parts of the center ring, allowing it to stably withstand the forces from not only the inner pot but also the lid. This eliminates the need for additional reinforcements, simplifies the overall structure of the center ring, and reduces costs.

[0025] 5. As a preferred embodiment of the present invention, the pressure ring has a downwardly extending positioning rib that extends into the opening and engages with the rim of the opening to position the pressure ring. The positioning rib of the pressure ring engages with the opening of the middle ring, providing a positioning mechanism for the pressure ring during installation. The positioning rib and the rim of the opening act as a stop to limit lateral movement of the pressure ring relative to the middle ring, further stabilizing their relative position, facilitating subsequent tightening, and ensuring overall stability after assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] 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:

[0027] Figure 1 This is a side view of a pressure cooking device according to one embodiment of the present invention;

[0028] Figure 2 for Figure 1 Side view of the middle pressure ring;

[0029] Figure 3 This is a schematic structural diagram of a pressure ring in one embodiment of the present invention;

[0030] Figure 4This is an exploded view of the structure of the middle ring in one embodiment of the present invention;

[0031] Figure 5 This is a cross-sectional view of a pot body according to one embodiment of the present invention;

[0032] Figure 6 for Figure 5 Magnified view of area A in the middle;

[0033] Figure 7 This is a cross-sectional view of a pot body according to another embodiment of the present invention.

[0034] in:

[0035] 1 pot body; 11 middle ring; 111 panel; 112 hinged seat; 113 front area; 114 rear area;

[0036] 2 pot lids;

[0037] 3 pressure ring; 31 pressure portion; 311 pressure plane; 312 stop rib; 32 avoidance portion; 321 gripping groove; 33 lug; 331 avoidance area; 34 first pressure section; 35 second pressure section; 36 fixing column; 37 extension section; 38 positioning rib;

[0038] 4 liner;

[0039] 5 reinforcement assembly; 51 first reinforcement member; 52 second reinforcement member; 53 third reinforcement member; 54 articulated seat reinforcement member. 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 Figures 1 to 3 As shown, a pressure cooking device includes a pot body 1, a pot lid 2, and an inner pot 4 placed inside the pot body 1. The pot body 1 includes a middle ring 11, which is provided with an opening for the inner pot 4 to pass through. A pressure-bearing ring 3 is also provided on the upper side of the middle ring 11. The pressure-bearing ring 3 surrounds the outer circumference of the opening. The pressure-bearing ring 3 has a pressure-bearing portion 31 and an avoidance portion 32 along its own circumference. The upper edge of the pressure-bearing portion 31 is higher than the upper edge of the avoidance portion 32, and the pressure-bearing portion 31 has a pressure-bearing plane 311. The edge of the inner pot 4 rests on the pressure-bearing plane 311. The pressure cooking device also includes a reinforcing component 5, which is fixed to the middle ring 11 and arranged corresponding to the pressure-bearing portion 31.

[0046] In the present invention, the pressure ring 3 is located on the upper side of the middle ring 11 and surrounds the opening. After the inner pot 4 is placed in the pot body 1, the rim of the pot rests on the pressure ring 3. The pressure ring 3 has a pressure-bearing portion 31 and an escape portion 32 along the circumference. The upper edge of the pressure-bearing portion 31 is higher than the upper edge of the escape portion 32, so that the rim of the inner pot 4 contacts the pressure-bearing portion 31, while there is a gap between the rim and the escape portion 32. Therefore, when the pot is pressurized, the inner pot 4 applies a downward force to the pressure-bearing portion 31 without contacting the escape portion 32, so that the support force point of the pressure ring 3 on the inner pot 4 is concentrated on the pressure-bearing portion 31. In structural strength analysis and structural reinforcement design, only targeted improvements need to be made to the pressure-bearing portion 31. This makes it easier to determine the area where the inner pot 4 applies force to the pressure ring 3, and facilitates structural reinforcement design in this area, reducing the difficulty of structural design while also reducing costs.

[0047] In addition, the reinforcing component 5 is arranged corresponding to the pressure-bearing part 31, so that the structural strength of the middle ring 11 in the area where the pressure-bearing part 31 is located is improved, thereby achieving a targeted increase in the strength of the local area of ​​the middle ring 11. On the basis of effectively improving the strength of the middle ring 11 and the supporting effect on the inner pot 4, the volume of the reinforcing component 5 is reduced, saving materials and costs, and helping to achieve the lightweight and miniaturization of the pot body 1.

[0048] Moreover, the setting of the pressure-bearing plane 311 means that the edge of the inner liner 4 is in plane contact with the pressure-bearing part 31, which not only increases the contact area and improves the supporting stability of the pressure-bearing part 31 on the inner liner 4, but also makes the force dispersed on the pressure-bearing plane 311 when the inner liner 4 transmits force to the pressure-bearing part 31, thereby avoiding deformation or damage of the pressure-bearing part 31 due to local concentrated force.

[0049] Specifically, such as Figure 5 、 Figure 6 As shown, the edge of the inner liner 4 is provided with an outward-folded outer flange, and the lower surface of the outer flange has a contact plane, which abuts against the pressure-bearing plane 311 so that the contact plane on the lower side of the outer flange contacts the pressure-bearing plane 311, and there is surface contact between the two, further increasing the contact area.

[0050] Preferably, the height difference between the pressure-bearing plane 311 and the upper edge of the avoidance portion 32 is 0-10 mm, so as to leave space between the avoidance portion 32 and the inner tank 4 to avoid contact between the two while appropriately reducing the gap between the two and improving the compactness of the whole machine assembly.

[0051] As a preferred embodiment of the present invention, Figure 3 As shown, the pressure ring 3 has an extension section 37 and a lug 33 protruding laterally outward from the extension section 37 along the circumferential direction. The avoidance portion 32 is located in the extension section 37, and the pressure-bearing portion 31 is located in the lug 33. A reinforcing rib is provided on the lower side of the lug 33.

[0052] The lug 33 protrudes outward relative to the extension section 37, so the width of the lug 33 is greater than that of the extension section 37. Positioning the pressure-bearing portion 31 on the lug 33 increases the width of the pressure-bearing portion 31, thereby increasing the area of ​​the pressure-bearing plane 311 and its contact area with the inner liner 4, thereby improving support stability. Furthermore, due to the larger width of the lug 33, there is ample space for reinforcing ribs. By providing reinforcing ribs on the underside of the lug 33, the structural strength of the lug 33 is further enhanced, ensuring that the pressure-bearing portion 31 remains structurally stable when pressed by the rim of the inner liner 4, reducing the risk of deformation or damage.

[0053] Specifically, such as Figure 3 、 Figure 4 As shown, the upper side of the middle ring 11 is provided with an upwardly protruding mounting rib, which surrounds the opening, and an outward expansion section is provided at the corresponding lug 33 to make the pressure ring 3 adapt to the shape of the mounting rib.

[0054] Further, if Figure 3 As shown, the pressure-bearing plane 311 extends along the circumference of the pressure-bearing ring 3 to the end of the lug 33. The upper surface of the lug 33 is also provided with an escape area 331, the upper surface of which is lower than the pressure-bearing plane 311. Due to the different shapes of the extension section 37 and the lug 33, the pressure-bearing plane 311 is located at the junction of the different curved surfaces of the pressure-bearing ring 3. This change in shape, coupled with the reinforcing ribs on the back, ensures a certain degree of structural strength near the pressure-bearing plane 311.

[0055] The escape area 331 is lower than the pressure-bearing plane 311, preventing it from contacting the edge of the inner liner 4. This further concentrates the contact between the inner liner 4 and the pressure-bearing ring 3 on the pressure-bearing plane 311, facilitating the structural reinforcement of the middle ring 11. Furthermore, it allows heat from the inner liner 4 to escape through the gap between the escape area 331 and the inner liner 4, facilitating rapid heat dissipation from the edge of the inner liner 4 and making it easier for the user to grip.

[0056] Specifically, such as Figure 2 、 Figure 3 As shown, a stop rib 312 is further provided on the outer side of the pressure-bearing plane 311 (the side away from the center of the pot body 1) to form a stop for the edge of the inner pot 4 and improve the positioning effect of the inner pot 4 when placed.

[0057] Preferably, if Figure 3As shown, there are two lugs 33, one at the front and one at the rear of the pot body 1, while the other extensions 37 are located at the left and right ends of the pot body 1. Pressure-bearing surfaces 311 are provided at both ends of each lug 33, so that the rim of the inner pot 4 contacts the four pressure-bearing surfaces 311. Of course, the number and position of the pressure-bearing surfaces 311 can also be designed in other ways and are not limited here.

[0058] Preferably, if Figure 5 、 Figure 6 As shown, a fixing post 36 is provided on the lower side of the lug 33, and the pressure cooking appliance further includes a fastener, which passes through the middle ring 11 to be fastened to the fixing post 36. The pressure ring 3 is fixedly connected to the middle ring 11 by fasteners such as screws, which doubles the strength of the middle ring 11 and ensures normal operation in a high-pressure environment. Under the action of the preload force, the pressure ring 3 and the middle ring 11 are tightly pulled, thereby improving the tightness of the contact between the two, enhancing the support effect and the structural reinforcement effect. The fixing position is located at the lug 33, which is closer to the contact position between the inner pot 4 and the pressure ring 3, so the fastener can be used to further improve the structural strength of this area.

[0059] Of course, the pressure ring 3 can also be fixed to the middle ring 11 by other means, such as snap fixation, etc., which is not limited here.

[0060] In a preferred embodiment of the present invention, Figure 3 、 Figure 4 As shown, the pressure-bearing portion 31 includes a first pressure-bearing section 34 and a second pressure-bearing section 35 . The middle ring 11 has a center line, which divides the middle ring 11 into a front area 113 and a rear area 114 . The first pressure-bearing section 34 is located in the front area 113 , and the second pressure-bearing section 35 is located in the rear area 114 .

[0061] It can be understood that the front area 113 is the area close to the user when the user uses the pressure cooking appliance. Similarly, the rear area 114 is the area away from the user.

[0062] The first pressure-bearing section 34 and the second pressure-bearing section 35 are respectively located in the front area 113 and the rear area 114 of the middle ring 11, that is, the edge of the inner pot 4 abuts against the pressure ring 3 at the front and rear, and correspondingly, the avoidance portion 32 is located on the left and right sides of the middle ring 11. Since there is a gap between the avoidance portion 32 and the inner pot 4, the user can remove the inner pot 4 from the pot body 1 by inserting his hand or tool into the gap. The gap is located on the left and right sides of the middle ring 11. After opening the lid, the user can directly grasp the inner pot 4 from the left and right sides with his left and right hands, so the operation is more comfortable and the user experience is improved.

[0063] Further, if Figure 4 、 Figure 5As shown, the pot cover 2 has a connecting end and an opening and closing end, the connecting end is rotatably connected to the rear area 114, and the opening and closing end can be locked with the front area 113, and the reinforcement component 5 includes a first reinforcement member 51 fixed to the front area 113, and a second reinforcement member 52 fixed to the rear area 114.

[0064] The front and rear regions 114 are pivotally connected to the connecting end of the lid 2, and the front region 113 is locked to the opening and closing end of the lid 2. During pressure cooking, the lid 2 is pushed upward by the gas pressure within the pot. However, the lid 2 is constrained by the front locking structure and the rear connecting structure, which also exerts significant forces on the front and rear regions 113 and 114 of the center ring 11. The first reinforcement 51, disposed in the front region 113, not only supports the area of ​​the center ring 11 corresponding to the first pressure-bearing section 34, but also supports the area of ​​the center ring 11 corresponding to the locking structure, thereby improving the overall strength of the front region 113. Similarly, the second reinforcement 52, disposed in the rear region 114, not only supports the area of ​​the center ring 11 corresponding to the second pressure-bearing section 35, but also supports the area of ​​the center ring 11 corresponding to the connecting structure, thereby improving the overall strength of the rear region 114. This allows the reinforcing assembly 5 to serve multiple purposes, thereby improving the structural strength of the front and rear portions of the middle ring 11, enabling it to stably withstand not only the forces from the inner pot 4 but also the forces from the lid 2. Furthermore, no additional reinforcing structure is required, simplifying the overall structure of the middle ring 11 and saving costs.

[0065] In addition, the first reinforcement 51 and the second reinforcement 52 are located in the front and rear areas of the middle ring 11, which specifically improve the strength of the front and rear areas of the middle ring 11. The left and right sides of the middle ring 11 correspond to the avoidance parts 32, where the extrusion pressure of the inner liner 4 is relatively small, so no additional reinforcement structure is set, which simplifies the structure of the middle ring 11 and saves costs.

[0066] Furthermore, if Figure 4 、 Figure 5 、 Figure 7 As shown, the middle ring 11 includes a panel 111, the first reinforcement 51 and the second reinforcement 52 are both fixed to the lower side of the panel 111, and the reinforcement assembly 5 also includes a third reinforcement 53 located between the panel 111 and the pressure ring 3. The third reinforcement 53 is located in the front area 113 and abuts against the lower side of the pressure ring 3 to support the pressure ring 3.

[0067] The third reinforcement 53 and the first reinforcement 51 are located on the upper and lower sides of the panel 111, clamping the panel 111. This provides support on both the upper and lower sides of the middle ring 11, thereby significantly improving the structural strength of the front region 113. Furthermore, the third reinforcement 53 abuts the lower side of the pressure ring 3, providing support for the pressure ring 3 and further enhancing its structural strength.

[0068] Preferably, if Figure 4 、 Figure 7 As shown, the third reinforcement member 53 is provided with a hook portion, and the pot cover 2 is provided with a buckle portion, and the buckle portion cooperates with the hook portion to achieve locking of the opening and closing ends of the pot cover 2 with the pot body 1.

[0069] Specifically, such as Figure 4 、 Figure 5 、 Figure 7 As shown, the rear region 114 of the middle ring 11 is provided with an articulated seat 112, and the lower side of the panel 111 is further provided with an articulated seat reinforcement 54. The first reinforcement 51, the second reinforcement 52, the third reinforcement 53, and the articulated seat reinforcement 54 are all made of metal. The third reinforcement 53 is fastened to the third reinforcement 53 by screws passing through the panel 111, and the middle ring 11 and the articulated seat reinforcement 54 are fastened to each other by screws.

[0070] Preferably, if Figure 6 As shown, the pressure ring 3 has a downwardly extending positioning rib 38 , which extends into the opening and cooperates with the edge of the opening to position the pressure ring 3 .

[0071] The positioning rib 38 of the pressure ring 3 is plugged into the opening of the middle ring 11, which plays a positioning role in the installation of the pressure ring 3. The positioning rib 38 and the edge of the opening stop limit the lateral movement of the pressure ring 3 relative to the middle ring 11, making the relative position of the two more stable, thereby facilitating subsequent tightening and overall stability after assembly is completed.

[0072] Preferably, if Figure 1 、 Figure 2 、 Figure 3 As shown, the avoidance portion 32 is provided with a downwardly recessed gripping groove 321 , and a gripping space for accommodating a hand is formed between the gripping groove 321 and the edge of the inner container 4 .

[0073] Since the relief portion 32 does not originally contact the edge of the inner liner 4, and there is a gap between them, a downwardly recessed gripping groove 321 is further provided in the relief portion 32 for the user to take the inner liner 4. On the one hand, the height of the gripping space is increased, allowing the user to easily insert their fingers into the gripping space and more reliably grasp the inner liner 4. On the other hand, the heat dissipation effect of the edge of the inner liner 4 is enhanced, keeping the edge of the inner liner 4 at a lower temperature, making it easier for the user to grasp.

[0074] 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.

[0075] Anything not described in this utility model can be achieved by adopting or drawing on existing technologies.

[0076] 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.

[0077] 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, a pot cover, and an inner pot placed inside the pot body, characterized in that: The pot body includes a middle ring, which is provided with an opening for the inner pot to pass through. A pressure-bearing ring is also provided on the upper side of the middle ring, and the pressure-bearing ring surrounds the outer circumference of the opening. The pressure-bearing ring has a pressure-bearing part and an avoidance part along its own circumference. The upper edge of the pressure-bearing part is higher than the upper edge of the avoidance part and the pressure-bearing part has a pressure-bearing plane. The edge of the inner pot rests on the pressure-bearing plane. The pressure cooking appliance also includes a reinforcing component, which is fixed to the middle ring and arranged corresponding to the pressure-bearing part.

2. The pressure cooking device according to claim 1, wherein The pressure ring has an extension section and a lug protruding laterally outward from the extension section along the circumferential direction. The avoidance portion is located in the extension section, the pressure-bearing portion is located in the lug, and a reinforcing rib is provided on the lower side of the lug.

3. The pressure cooking device according to claim 2, wherein: The pressure-bearing plane extends along the circumference of the pressure-bearing ring to the end of the lug. The upper surface of the lug is further provided with an escape area, and the upper surface of the escape area is lower than the pressure-bearing plane.

4. The pressure cooking appliance according to claim 2, wherein A fixing column is provided on the lower side of the lug, and the pressure cooking device further comprises a fastener, which passes through the middle ring to be fastened to the fixing column.

5. The pressure cooking device according to claim 1, wherein The pressure-bearing portion includes a first pressure-bearing section and a second pressure-bearing section. The middle ring has a center line that divides the middle ring into a front area and a rear area. The first pressure-bearing section is located in the front area, and the second pressure-bearing section is located in the rear area.

6. The pressure cooking appliance according to claim 5, wherein The pot cover has a connecting end and an opening and closing end, the connecting end is rotatably connected to the rear area, and the opening and closing end can be locked with the front area. The reinforcement assembly includes a first reinforcement member fixed to the front area and a second reinforcement member fixed to the rear area.

7. The pressure cooking appliance according to claim 6, wherein The middle ring includes a panel, the first reinforcement and the second reinforcement are both fixed to the lower side of the panel, and the reinforcement assembly also includes a third reinforcement located between the panel and the pressure ring. The third reinforcement is located in the front area and abuts against the lower side of the pressure ring to support the pressure ring.

8. The pressure cooking appliance according to claim 1, wherein The pressure-bearing ring has a positioning rib extending downward, and the positioning rib extends into the opening and cooperates with the edge of the opening to position the pressure-bearing ring.

9. The pressure cooking appliance according to claim 1, wherein The avoidance portion is provided with a downwardly concave gripping groove, and a gripping space for accommodating a hand is formed between the gripping groove and the edge of the inner container.

10. The pressure cooking device according to any one of claims 1 to 9, characterized in that: The rim of the inner container is provided with an outer flange, and the lower surface of the outer flange has a contact plane, and the contact plane is in abutment with the pressure-bearing plane.

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