Pressure limiting valve and cooking appliance

Abstract

The utility model discloses a kind of pressure-limiting valve and cooking utensil, belong to cooking utensil technical field, purpose is to overcome the defect that existing pressure-limiting valve is not easy to disassemble. Pressure-limiting valve includes valve body, the valve body has opening downward mounting groove, the inside wall of the valve body has assembly groove, the movable limit piece of assembly groove can be set, the convex part of the limit piece projects from the inside wall of the valve body, elastic member is equipped between the limit piece and the valve body, to make the limit piece tend to move to the mounting groove. The pre-pressure of elastic member is stronger controllability, facilitate the clamping force control of limit piece to exhaust pipe in reasonable range, avoid too loose or too tight, give consideration to connection stability and disassembly convenience.

Description

Technical Field

[0001] This utility model belongs to the technical field of cooking appliances, and relates to a pressure limiting valve and a cooking appliance. Background Technology

[0002] As a kitchen appliance that uses high-pressure steam to quickly cook food, a pressure cooker's core safety component is the pressure relief valve. This valve regulates the pressure inside the pot, automatically releasing gas when the pressure exceeds a safe threshold, thus preventing accidents such as pot explosions. Currently, the pressure relief valve on most pressure cookers is connected to the lid via a spring clip and a vent pipe. A spring clip that is too tight makes disassembly difficult, while a loose clip makes it prone to detachment. In practical use, disassembling and cleaning the pressure relief valve is quite difficult, and the spring clip can easily scratch fingers. Summary of the Invention

[0003] This utility model addresses the problems existing in the prior art by proposing a pressure limiting valve and a cooking appliance, aiming to overcome the defect that existing pressure limiting valves are not easy to disassemble and assemble.

[0004] This utility model is implemented as follows:

[0005] A pressure relief valve includes a valve body having a downward-facing mounting groove. The valve body has an inner wall with an assembly groove, and a limiting member is movably disposed within the assembly groove. A protrusion of the limiting member extends beyond the inner wall of the valve body, and an elastic member is provided between the limiting member and the valve body to encourage the limiting member to move towards the mounting groove.

[0006] The assembly groove has a downward-facing mounting opening, and a cover plate is fixed at the mounting opening. The cover plate and the valve body form an assembly groove.

[0007] The end of the cover plate has a lip rib to limit the movement distance of the limiting member into the mounting groove.

[0008] The cover plate is fixed to the valve body by screws, and the screws are offset from the assembly groove.

[0009] The top wall of the assembly groove has a limiting groove, and the upper end of the limiting member has a limiting part that is embedded in the limiting groove and can move in the limiting groove.

[0010] The limiting member has a snap-fit ​​connector protruding into the mounting groove, and the surface of the snap-fit ​​connector is spherical.

[0011] The elastic element is a spring or silicone.

[0012] The limiting member has a limiting cavity, and the limiting cavity has a limiting post. The spring is inserted into the limiting cavity and sleeved on the limiting post.

[0013] The pressure relief valve includes a valve cap and a valve tip. The upper end of the valve tip is fixed to the valve cap, and the valve tip is threaded to the valve body. The lower end of the valve tip is inserted into the mounting groove. The lower end of the valve body has an outwardly protruding support portion. The lower end of the valve cap abuts against the support portion. The mounting groove is located at the position of the support portion. A sealing ring is provided between the upper end of the valve body and the valve cap. An insert is fitted onto the upper end of the valve cap.

[0014] A cooking appliance includes a pot lid with an exhaust pipe, characterized in that the cooking appliance further includes the aforementioned pressure relief valve, the exhaust pipe is embedded in the mounting groove, the outer wall of the exhaust pipe has a groove, and the end of the limiting member is embedded in the groove.

[0015] The present invention has the following advantages: the pre-pressure of the elastic element is highly controllable, which makes it easy to control the clamping force of the limiting element on the exhaust pipe within a reasonable range, avoiding being too loose or too tight, and taking into account both connection stability and ease of assembly and disassembly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the pressure relief valve.

[0017] Figure 2 This is a schematic diagram of the exploded structure of a pressure relief valve;

[0018] Figure 3 A cross-sectional view of the assembly of the pressure relief valve and the exhaust pipe;

[0019] Figure 4 for Figure 3 A magnified view of part A in the middle;

[0020] Figure labeling: 100, valve body; 110, mounting groove; 120, assembly groove; 121, limiting groove; 130, support part; 200, limiting element; 210, elastic element; 220, limiting part; 230, snap-fit ​​connector; 240, limiting cavity; 250, limiting post; 300, valve cap; 310, sealing ring; 400, valve tip; 500, insert; 600, exhaust pipe; 700, cover plate; 710, lip rib; 720, screw. Detailed Implementation

[0021] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so as to make the technical solution of this utility model easier to understand and master. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0022] This embodiment provides a pressure cooker, which is a specific application of the innovative solution of this utility model in a pressure cooker. The pressure cooker's pressure cooker core solution can also be applied to other cooking appliances requiring pressure cooking. The pressure cooker includes a lid, on which a vent pipe 600 cover and a pressure limiting valve are provided. Figure 1-4 As shown, the pressure relief valve includes a valve body 100, which has a downward-facing mounting groove 110. An assembly groove 120 is provided on the inner wall of the valve body 100. A limiting member 200 is movably disposed within the assembly groove 120. The protrusion of the limiting member 200 protrudes from the inner wall of the valve body 100. An elastic member 210 is provided between the limiting member 200 and the valve body 100 to encourage the limiting member 200 to move towards the mounting groove 110. The exhaust pipe 600 is embedded in the mounting groove 110 of the pressure relief valve. The outer wall of the exhaust pipe 600 has a groove, and the end of the limiting member 200 is embedded in the groove.

[0023] The elastic element 210 drives the limiting element 200 to automatically reset, ensuring that the limiting element 200 is engaged with the groove of the exhaust pipe 600 after the pressure relief valve is installed, preventing the pressure relief valve from falling off under the impact of steam pressure. During disassembly, the user only needs to pull the pressure relief valve upwards, compressing the limiting element 200, causing the elastic element 210 to retract, easily separating the pressure relief valve from the exhaust pipe 600 without the need for tools or excessive force. The pre-pressure of the elastic element 210 is highly controllable, allowing the clamping force of the limiting element 200 on the exhaust pipe 600 to be controlled within a reasonable range, avoiding excessive looseness or tightness, and balancing connection stability with ease of installation and disassembly.

[0024] like Figure 2 , 4 As shown, the assembly groove 120 has a downward-facing mounting opening, and a cover plate 700 is fixed at the mounting opening. The cover plate 700 and the valve body 100 form the assembly groove 120. This facilitates the machining of the mounting opening and the assembly of the limiting member 200 and the elastic member 210.

[0025] like Figure 4 As shown, the end of the cover plate 700 has a lip rib 710 to limit the movement distance of the limiting member 200 towards the mounting groove 110. This makes the assembly of the limiting member 200 within the assembly groove 120 more stable.

[0026] like Figure 1 , 2As shown, the cover plate 700 is fixed to the valve body 100 by screws 720, which are offset from the mounting groove 120. The screw 720 connection method is relatively simple and easy to operate. During production and assembly, workers can easily and quickly install the cover plate 700 onto the valve body 100. When maintenance or replacement of components such as the limiting member 200 and the elastic member 210 is required, the cover plate 700 is also easy to disassemble, improving the maintainability of the product. In other optional embodiments, the cover plate 700 can also be welded to the valve body 100.

[0027] like Figure 4 As shown, the top wall of the assembly groove 120 has a limiting groove 121. The upper end of the limiting member 200 has a limiting part 220 that is embedded in the limiting groove 121 and can move within the limiting groove 121. With the cooperation of the lip rib 710, the limiting member 200 is prevented from moving excessively and disengaging from the assembly groove 120 under the action of the elastic member 210, ensuring that the limiting member 200 is always within the correct working position range. The limiting groove 121 provides a fixed track for the movement of the limiting member 200, allowing the limiting member 200 to move only along the extension direction of the limiting groove 121, ensuring the directional accuracy of the limiting member 200 during movement. This ensures that the end of the limiting member 200 can accurately engage or disengage from the groove of the exhaust pipe 600, achieving reliable connection and disassembly between the pressure relief valve and the exhaust pipe 600. The cooperation between the limiting part 220 and the limiting groove 121 makes the installation of the limiting part 200 in the assembly groove 120 more stable, reduces the shaking or displacement of the limiting part 200 caused by external forces such as steam pressure and vibration during operation, and improves the stability of the entire pressure relief valve structure.

[0028] like Figure 4 As shown, the limiting member 200 has a snap-fit ​​connector 230 protruding into the mounting groove 110, and the surface of the snap-fit ​​connector 230 is spherical. The spherical snap-fit ​​connector 230 plays a guiding role in the installation and disassembly of the pressure relief valve. During installation, it can slide naturally along the outer wall of the exhaust pipe 600, allowing the limiting member 200 to smoothly compress the elastic member 210, facilitating the smooth insertion of the exhaust pipe 600 into the mounting groove 110; during disassembly, it can also slide smoothly out of the groove along the outer wall of the exhaust pipe 600, eliminating the need for precise alignment or the application of complex operating forces by the user, thus simplifying the installation and disassembly process.

[0029] In this embodiment, the elastic element 210 is a spring, and the limiting element 200 has a limiting cavity 240. The limiting cavity 240 contains a limiting post 250. The spring is inserted into the limiting cavity 240 and sleeved on the limiting post 250, which facilitates stable installation of the spring and improves assembly efficiency. In other optional embodiments, the elastic element 210 can also be made of silicone.

[0030] like Figure 2 ,3 As shown, the pressure relief valve includes a valve cap 300 and a valve tip 400. The upper end of the valve tip 400 is fixed to the valve cap 300, and the valve tip 400 is threaded onto the valve body 100. The lower end of the valve tip 400 is inserted into the mounting groove 110. The lower end of the valve body 100 has an outwardly protruding support portion 130, and the lower end of the valve cap 300 abuts against the support portion 130. The mounting groove 120 is located at the position of the support portion 130. A sealing ring 310 is provided between the upper end of the valve body 100 and the valve cap 300, and an insert 500 is fitted onto the upper end of the valve cap 300.

[0031] The above description is merely a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the utility model will be included within the scope of the claims.

Claims

1. A pressure relief valve, comprising a valve body (100) having a downward-facing mounting groove (110), characterized in that, The valve body (100) has an assembly groove (120) on its inner sidewall. A limiting member (200) is movably disposed in the assembly groove (120). The protrusion of the limiting member (200) protrudes from the inner sidewall of the valve body (100). An elastic member (210) is provided between the limiting member (200) and the valve body (100) to make the limiting member (200) tend to move toward the mounting groove (110).

2. A pressure relief valve according to claim 1, characterized in that, The assembly groove (120) has a downward mounting opening, and a cover plate (700) is fixed at the mounting opening. The cover plate (700) and the valve body (100) form the assembly groove (120).

3. A pressure relief valve according to claim 2, characterized in that, The end of the cover plate (700) has a lip rib (710) to limit the movement distance of the limiting member (200) toward the mounting groove (110).

4. A pressure-limiting valve according to claim 2, characterized in that, The cover plate (700) is fixed to the valve body (100) by screws (720), and the screws (720) are misaligned with the mounting groove (120).

5. A pressure relief valve according to claim 1, characterized in that, The top wall of the assembly groove (120) has a limiting groove (121), and the upper end of the limiting member (200) has a limiting part (220) that is embedded in the limiting groove (121) and can move in the limiting groove (121).

6. A pressure relief valve according to claim 1, characterized in that, The limiting member (200) has a snap-fit ​​connector (230) protruding into the mounting groove (110), the surface of the snap-fit ​​connector (230) being spherical.

7. A pressure relief valve according to claim 1, characterized in that, The elastic element (210) is a spring or silicone.

8. A pressure relief valve according to claim 7, characterized in that, The limiting member (200) has a limiting cavity (240), and the limiting cavity (240) has a limiting post (250). The spring is inserted into the limiting cavity (240) and sleeved on the limiting post (250).

9. A pressure relief valve according to claim 1, characterized in that, The pressure relief valve includes a valve cap (300) and a valve tip (400). The upper end of the valve tip (400) is fixed to the valve cap (300). The valve tip (400) is threaded to the valve body (100). The lower end of the valve tip (400) is inserted into the mounting groove (110). The lower end of the valve body (100) has an outwardly protruding support portion (130). The lower end of the valve cap (300) abuts against the support portion (130). The mounting groove (120) is located at the position of the support portion (130). A sealing ring (310) is provided between the upper end of the valve body (100) and the valve cap (300). An insert (500) is fitted onto the upper end of the valve cap (300).

10. A cooking utensil, comprising a pot lid, wherein the pot lid is provided with a vent pipe (600), characterized in that, The cooking appliance also includes a pressure relief valve as described in any one of claims 1-9, wherein the exhaust pipe (600) is embedded in the mounting groove (110), the outer side wall of the exhaust pipe (600) has a groove, and the end of the limiting member (200) is embedded in the groove.

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