Adjustable spring valve

Abstract

The utility model relates to the technical field of air valve components, in particular to an adjustable spring valve, which is characterized by comprising an air guide pipe, a base, a turncap, a valve core and a spring, the lower end of the air guide pipe penetrates through the center of the base and is used for fixing the base on a pressure cooker, and the valve core is assembled at the upper end of the air guide pipe. The valve element comprises a plug part, a support part, a sleeve part and a flanging part, the flanging part is provided with an annular groove, the sleeve part is connected with the plug part through the support part, the sleeve part is arranged on the air guide pipe in a sleeving mode to plug the air guide pipe, the spring abuts against the interior of the turncap, and the turncap is arranged on the valve element in a sleeving mode and matched with the valve element in a clamped mode. A sliding groove matched with the first sliding block to change the vertical position of the turncap is formed in the base, a second sliding block is arranged at the bottom of the valve element, and a sliding slope matched with the second sliding block to change the vertical position of the valve element is arranged in the base. By adjusting the initial compression amount of the spring, the pressure limiting device achieves the effects of adjusting different pressure limits and improving the practical and convenient degree, and is suitable for various pressure cookers.

Description

Technical Field

[0001] This utility model relates to the technical field of air valve components, specifically to an adjustable spring valve. Background Technology

[0002] On some pressure cookers, we often see pressure valves. Controlling these valves during cooking requires careful attention. The most common type is a non-adjustable valve. When the pressure inside the pressure cooker reaches a certain level, the valve releases pressure; this is sometimes called a pressure relief valve. However, this type of pressure relief valve is no longer sufficient for most users' needs in food preparation and other applications. Depending on the cooking requirements of different foods, the pressure relief parameters for pressure cookers vary. Some require high pressure relief, some medium pressure relief, and some low pressure relief.

[0003] The existing structure of pneumatic valves cannot meet the functional requirements of pressure regulation, so technical improvements are needed. Utility Model Content

[0004] In order to solve the technical problems and shortcomings of the prior art, the present invention provides an adjustable spring valve that can overcome the technical problem that the pressure limiting pressure is not easy to adjust, and allows users to easily select different pressure limiting levels according to their needs.

[0005] To achieve the above and other related objectives, the present invention adopts the following technical solution:

[0006] An adjustable spring valve includes a gas guide tube, a base, a rotary cap, a valve core, and a spring. The lower end of the gas guide tube passes through the center of the base to fix the base to a pressure cooker. The upper end of the gas guide tube is fitted with the valve core. The valve core includes a plug, a support, a sleeve, and a flange. The flange and the sleeve form an annular groove for the lower end of the spring to be fitted. The upper end of the sleeve is connected to the plug through the support. The sleeve is fitted onto the gas guide tube and plugs the gas outlet of the gas guide tube through the plug. The upper end of the spring abuts against the rotary cap. The rotary cap is fitted onto the valve core and engages with it. A first slider is provided inside the rotary cap. A groove is provided inside the base to adapt to the first slider changing the vertical position of the rotary cap. A second slider is provided at the bottom of the valve core. A ramp is provided inside the base to adapt to the second slider changing the vertical position of the valve core.

[0007] Preferably, the air guide tube has a hollow structure with a threaded structure at the lower end, and a retaining ring is provided on the upper part of the nut structure, which is engaged with the bottom of the base.

[0008] Preferably, the sliding groove of the base is provided on the inner wall of the base and extends through the bottom edge. The sliding groove is provided with a vertical disassembly groove and a positioning groove. The positioning groove cooperates with the first slider to maintain the position. The first slider enters or disengages from the disassembly groove.

[0009] Preferably, the top of the cap is provided with an exhaust hole, and an indicator cover is fixed to the top of the cap.

[0010] Preferably, the inside of the rotating cap is provided with an inner sleeve, the first slider is provided on the outer side of the lower edge of the inner sleeve, and a retaining strip is provided on the inner side of the inner sleeve, the retaining strip engaging with the outer side of the valve core.

[0011] Preferably, the outer side of the valve core is disposed in the slot corresponding to the retaining strip.

[0012] Preferably, multiple positioning slots are provided.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model can discharge steam through the air guide pipe. In the initial state, the air pressure is not high. At this time, the plug on the valve core will block the air guide pipe. The plugging pressure of the valve core depends on the initial compression state of the spring. Since the two ends of the spring are supported on the valve core and the rotating cap respectively, the upper and lower positions of the valve core or the rotating cap determine the threshold force of the spring. By rotating the position of the rotating cap in this solution, the first slider on the rotating cap slides on the groove of the base. The shape of the groove changes the upper and lower position of the rotating cap. At the same time, the valve core can also rotate due to the rotation of the rotating cap. While the valve core rotates, the second slider changes its upper and lower position on the slope of the base, thereby realizing the setting and adjustment of the initial compression amount of the spring, thus achieving the adjustment requirements of different pressure limits.

[0015] 2. In this utility model, the gas duct can release gas pressure, and the threaded structure at the lower end makes it easy to fix it on the pressure cooker or the pressure cooker lid. At the same time, the retaining ring can also effectively fix the base on the pressure cooker.

[0016] 3. In this utility model, the design of the sliding groove facilitates the disassembly and cleaning of the valve core and the rotating cap, making it easy to use.

[0017] 4. The nut and valve core are coordinated by the retaining strip to achieve synchronous circumferential rotation without affecting the adjustment of the vertical position. Moreover, the retaining strip and groove make the vertical position adjustment process very stable and reliable.

[0018] Other additional advantages and benefits of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is an overall schematic diagram of an embodiment of this application;

[0021] Figure 2 yes Figure 1 Top view;

[0022] Figure 3 yes Figure 2 A sectional view at point AA;

[0023] Figure 4 It is an exploded view of the structure from one perspective;

[0024] Figure 5 This is an exploded view of the structure from a second perspective;

[0025] Figure 6 This is a structural diagram of the base.

[0026] Explanation of reference numerals for major components:

[0027] 1. Air guide tube; 11. Snap ring; 12. Threaded structure; 13. Air outlet; 2. Base; 21. Slide groove; 22. Slide slope; 23. Disassembly groove; 24. Positioning groove; 3. Rotary cap; 31. Exhaust hole; 32. Inner sleeve; 33. First slider; 34. Clip; 4. Valve core; 41. Plug head; 42. Support part; 43. Sleeve part; 44. Flanged part; 45. Ring groove; 46. Second slider; 47. Snap groove; 5. Spring; 6. Indicator cover. Detailed Implementation

[0028] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. The following specific examples illustrate the embodiments of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features in the embodiments can be combined with each other.

[0029] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The illustrations only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be changed at will, and the layout of the components may also be more complex.

[0030] It should be noted that in the description of this application, the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the invention. Furthermore, it should be noted that in the description of this application, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in the invention based on the specific circumstances.

[0031] Example:

[0032] This invention discloses an adjustable spring valve, as per an embodiment. Figure 1 , Figure 2 and Figure 3 The pressure cooker includes a vent pipe 1, a base 2, a nut 3, a valve core 4, and a spring 5. The lower end of the vent pipe 1 passes through the center of the base 2 to secure it to the pressure cooker. Specifically, the vent pipe 1 has a hollow structure with a threaded structure 12 at the lower end. A retaining ring 11 is located on the upper part of the nut structure and engages with the bottom of the base 2. Thus, when the threaded structure 12 of the vent pipe 1 is assembled onto the pressure cooker, the base 2 is simultaneously secured to the pressure cooker. Steam inside the pressure cooker can be released through the vent pipe 1.

[0033] Combination Figure 3 , Figure 4 and Figure 5Understood. A valve core 4 is fitted to the upper end of the air duct 1. The valve core 4 includes a plug head 41, a support portion 42, a sleeve portion 43, and a flanged portion 44. The flanged portion 44 and the sleeve portion 43 form an annular groove 45 for mounting the lower end of the spring 5. The lower end of the spring 5 is confined in the annular groove 45, preventing it from easily detaching and providing support. The upper end of the sleeve portion 43 is integrally connected to the plug head 41 via the support portion 42. The sleeve portion 43 is fitted onto the air duct 1 and plugs the air outlet 13 at the upper end of the air duct 1 via the plug head 41. It should be noted that the upper end of the spring 5 abuts against the inside of the cap 3. Under the force of the spring 5, the valve core 4 will block the air outlet 13 of the air duct 1. Of course, if the air pressure is relatively high, it can overcome the force of the spring 5, thereby opening the valve core 4, allowing pressure relief. An exhaust port 31 is provided at the top of the cap 3, allowing gas to escape through the exhaust port 31.

[0034] Specifically, the rotary cap 3 is fitted onto the valve core 4 and snaps into place. An indicator cover 6 is fixed to the top of the rotary cap 3. The indicator cover 6 has markings to indicate different pressure limiting levels, such as level one, level two, and level three. In this design, food symbols are used for greater visual representation. The circle symbol indicates the disassembly / reassembly position, and there is a fixed arrow on the outside. When the rotary cap 3 is rotated and the circle symbol is aligned with the arrow, it indicates that disassembly / reassembly is possible. Similarly, rotating different markings on the rotary cap 3 to the arrow position indicates the pressure limiting level (gear).

[0035] The rotating cap 3 has a first slider 33 inside, and the base 2 has a groove 21 inside to adapt to the first slider 33 changing the vertical position of the rotating cap 3. In this design, the groove 21 of the base 2 is set on the inner wall of the base 2 and extends through the bottom edge. The groove 21 has a vertical disassembly groove 23 and a positioning groove 24. The positioning groove 24 cooperates with the first slider 33 to maintain its position. The first slider 33 enters or disengages from the disassembly groove 23. The groove 21 is not flat but curved. Especially for the first slider 33, in order to keep it stationary when it slides to the stop position, the inverted "V"-shaped positioning groove 24 is used for positioning. In this design, the disassembly groove 23, the groove 21, and the positioning groove 24 are circumferentially distributed on the inner wall of the base 2, with two sets arranged in a centrally symmetrical manner. Two first sliders 33 are provided, which slide into the disassembly slot 23 from top to bottom, aligned with the opening on the top. Then, by rotating the cap 3, the two first sliders 33 abut against the ramp of the slide groove 21, entering one positioning slot 24 and holding the position. Manual rotation allows them to enter the second positioning slot 24. This is how manual adjustment is performed by rotating the cap 3. This process allows the rotation level of the cap 3 to be changed.

[0036] Then combine Figure 6A second slider 46 is installed at the bottom of the valve core 4, and a ramp 22 is provided inside the base 2 to adapt to the second slider 46 and change the vertical position of the valve core 4. Two second sliders 46 are provided, each with a rounded spherical end. This structure reduces frictional resistance and improves operational smoothness. Two ramps 22 are arranged circumferentially and are symmetrically positioned. When the second slider 46 slides to the top of the ramp 22, the valve core 4 is lifted, which is the venting position, allowing for rapid release of gas from the pot and reducing pressure.

[0037] The inside of the rotating cap 3 is provided with an inner sleeve 32, and the first slider 33 is located on the outer side of the lower edge of the inner sleeve 32, which is conducive to its cooperation with the slide groove 21.

[0038] A retaining strip 34 is provided on the inner side of the inner sleeve 32. The retaining strip 34 engages with the outer side of the valve core 4, and the outer side of the valve core 4 is provided with a corresponding retaining groove 47 on the retaining strip 34. Multiple positioning grooves 24 are provided. This makes the assembly process easy, and this structure does not restrict the vertical movement of the swivel cap 3 and the valve core 4, but it can restrict the circumferential relative movement.

[0039] This invention allows steam to be released through the vent pipe 1. Initially, the gas pressure is low, and the plug 41 on the valve core 4 blocks the vent pipe 1. The plugging pressure of the valve core 4 depends on the initial compression state of the spring 5. Since the two ends of the spring 5 are supported on the valve core 4 and the rotating cap 3 respectively, the vertical position of the valve core 4 or the rotating cap determines the threshold force of the spring 5. By rotating the position of the rotating cap 3 in this design, the first slider 33 on the rotating cap 3 slides on the groove 21 of the base 2. The shape of the groove 21 changes the vertical position of the rotating cap 3. Simultaneously, the valve core 4 can also rotate due to the rotation of the rotating cap 3. While the valve core 4 rotates, the second slider 46 changes its vertical position on the slope 22 of the base 2, thereby setting and adjusting the initial compression amount of the spring 5, thus achieving different pressure limit adjustment requirements. The vent pipe 1 can release gas pressure, and the threaded structure 12 at the lower end facilitates its fixed installation on a pressure cooker or pressure cooker lid. Simultaneously, the retaining ring 11 can effectively fix the base 2 on the pressure cooker.

[0040] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An adjustable spring valve, characterized in that, The pressure cooker includes a gas pipe (1), a base (2), a cap (3), a valve core (4), and a spring (5). The lower end of the gas pipe (1) passes through the center of the base (2) to fix the base (2) to the pressure cooker. The upper end of the gas pipe (1) is fitted with the valve core (4). The valve core (4) includes a plug (41), a support (42), a sleeve (43), and a flange (44). The flange (44) and the sleeve (43) form an annular groove (45) for the lower end of the spring (5) to be fitted. The upper end of the sleeve (43) is connected to the plug (41) through the support (42). The sleeve (43) is fitted onto the air pipe (1) and the air outlet (13) of the air pipe (1) is blocked by the plug head (41). The upper end of the spring (5) abuts against the inside of the swivel cap (3). The swivel cap (3) is fitted onto the valve core (4) and engages with it. The swivel cap (3) is provided with a first slider (33). The base (2) is provided with a groove (21) adapted to the first slider (33) to change the up and down position of the swivel cap (3). The bottom of the valve core (4) is provided with a second slider (46). The base (2) is provided with a slope (22) adapted to the second slider (46) to change the up and down position of the valve core (4).

2. The adjustable spring valve according to claim 1, characterized in that, The air guide tube (1) is a hollow structure with a threaded structure (12) at the lower end. A retaining ring (11) is provided on the upper part of the threaded structure (12), and the retaining ring (11) is engaged with the bottom of the base (2).

3. The adjustable spring valve according to claim 1, characterized in that, The slide groove (21) of the base (2) is set on the inner wall of the base (2) and extends through the bottom edge. The slide groove (21) is provided with a vertical disassembly groove (23) and a positioning groove (24). The positioning groove (24) cooperates with the first slider (33) to maintain its position. The first slider (33) enters or disengages from the disassembly groove (23).

4. The adjustable spring valve according to claim 3, characterized in that, The top of the swivel cap (3) is provided with an exhaust hole (31), and an indicator cover (6) is fixed to the top of the swivel cap (3).

5. The adjustable spring valve according to claim 3, characterized in that, The inside of the cap (3) is provided with an inner sleeve (32), the first slider (33) is provided on the outer side of the lower edge of the inner sleeve (32), and a retaining strip (34) is provided on the inner side of the inner sleeve (32), which is engaged with the outer side of the valve core (4).

6. The adjustable spring valve according to claim 5, characterized in that, The outer side of the valve core (4) is provided in the slot (47) corresponding to the card strip (34).

7. The adjustable spring valve according to claim 3, characterized in that, Multiple positioning slots (24) are provided.

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