Electrodeless pressure regulating valve

Abstract

The utility model relates to the technical field of pressure cooker accessories, specifically relates to a stepless pressure regulating valve, and technical scheme main points include including valve seat, exhaust pipe, valve core, pressure regulating core, spring and valve handle, the valve seat is fixedly assembled with the exhaust pipe, is provided with the tooth groove on the inner peripheral wall of valve seat, is provided with the sliding platform on the bottom of valve seat, the valve core is sleeved on the exhaust pipe, is provided with the valve tip of silica gel material on the top of valve core, is provided with the everted portion on the outside of valve core, forms the lower spring groove on the everted portion, is provided with the tooth block on the side wall of pressure regulating core, the tooth block cooperates with tooth groove and slides on tooth groove, is provided with the upper spring groove on the inside of pressure regulating core, the spring is assembled between the upper spring groove and lower spring groove, the valve handle is fixedly assembled on pressure regulating core and makes valve core synchronous rotation through rotation. Assemble silica gel valve tip on the valve core, and the cooperation of silica gel and exhaust pipe mouth part improves the sealing property. The utility model improves the pressure maintaining capacity and facilitates pressure regulating control.

Description

Technical Field

[0001] This utility model relates to the technical field of pressure cooker accessories, specifically to a stepless pressure regulating valve. Background Technology

[0002] Existing pressure cookers are equipped with pressure regulating valves. Traditional pressure regulating valves use a level-adjustment scheme, offering multiple pressure levels. However, users have new demands for pressure regulation functionality, and level adjustments are no longer sufficient to meet the precise pressure control requirements of pressure cookers for cooking food. Furthermore, we have found that the existing pressure regulating valve design lacks sufficient sealing performance between the valve core and the air passage, resulting in inadequate pressure holding capacity. Therefore, there is significant room for improvement in the existing pressure regulating valve design. Utility Model Content

[0003] In order to solve the technical problems and shortcomings of the prior art, the present invention provides a stepless pressure regulating valve that can improve the accuracy of pressure regulation and enhance the pressure holding capacity.

[0004] To achieve the above and other related objectives, the present invention adopts the following technical solution:

[0005] A stepless pressure regulating valve includes a valve seat, an exhaust pipe, a valve core, a pressure regulating core, a spring, and a valve handle;

[0006] The valve seat and exhaust pipe are fixedly assembled at the center position. The inner peripheral wall of the valve seat is provided with a toothed groove with a slope designed along the adjustment direction. A slide is provided at the bottom of the valve seat.

[0007] The valve core is fitted onto the exhaust pipe. A silicone valve tip is fitted to the top of the valve core for sealing against the exhaust port on the exhaust pipe. An outward-flaring portion is provided on the outer side of the valve core, and a lower spring groove is formed on the outward-flaring portion.

[0008] The pressure regulating core has a toothed block on its side wall. The toothed block engages with the toothed groove and slides on the toothed groove. The pressure regulating core has an upper spring groove on its inner side. The spring is assembled between the upper spring groove and the lower spring groove. The valve handle is fixedly assembled on the pressure regulating core and rotates to make the valve core rotate synchronously. The valve core is raised by the slide table to adjust the spring compression.

[0009] Preferably, the inner wall of the valve seat is further provided with an assembly groove, the assembly groove is vertically connected to the tooth groove, and an anti-detachment part is provided between the tooth groove and the assembly groove.

[0010] Preferably, the valve seat has a groove in the middle of its bottom, the exhaust pipe has a block, and the exhaust pipe has a threaded part that passes through the groove for installation on a pressure cooker.

[0011] Preferably, the bottom of the valve core is provided with a protrusion that slides with the slide table, and the end face of the protrusion is spherical.

[0012] Preferably, the valve core has a support portion at its top, a valve tip is fitted at the center of the support portion, and the lower end of the valve tip is spherical.

[0013] Preferably, the outward-facing portion is provided with an elastic claw, and the pressure regulating core is provided with a movable groove for limiting the up-and-down movement of the elastic claw.

[0014] Preferably, the pressure regulating core is provided with an air outlet at its top.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model uses an exhaust pipe and a valve seat that are fixedly assembled together. The valve core seals the exhaust pipe with a silicone valve tip. The sealing force of the valve core depends on the spring force, which in turn depends on the compression state of the spring. By rotating the pressure adjusting core, the compression degree of the spring can be adjusted at different heights on the slide. To prevent the valve core from failing to stay on the slope of the slide, a preliminary locking state is maintained through the staged locking of the toothed blocks and grooves, thus achieving reliable stepless pressure adjustment. The pressure adjustment method is simple, achieved by rotating the valve handle. The use of a silicone valve tip in conjunction with the exhaust pipe greatly improves the sealing and pressure holding performance.

[0017] 2. In this utility model, in order to facilitate the assembly of the toothed blocks on the pressure regulating core into the toothed groove from top to bottom, an assembly groove is provided to provide assembly space, thereby facilitating assembly and improving assembly efficiency.

[0018] 3. The valve seat and exhaust pipe are installed on the pressure cooker by means of an embedded method using the threaded part, which can achieve quick fixation of the three.

[0019] 4. The valve tip is spherical, which improves the reliability of the sealing and enhances the pressure holding capacity.

[0020] 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

[0021] 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:

[0022] Figure 1 This is an overall schematic diagram of an embodiment of this application;

[0023] Figure 2 yes Figure 1 A schematic diagram of the vertical half-section structure;

[0024] Figure 3 This is an exploded view of the structure from one perspective of this application;

[0025] Figure 4 This is an exploded view of the structure from the second perspective of this application;

[0026] Figure 5 This is a perspective view of the valve seat structure in this application.

[0027] Explanation of reference numerals for major components:

[0028] 1. Valve seat; 11. Toothed groove; 12. Slide table; 13. Assembly groove; 14. Anti-detachment part; 15. Insert groove; 2. Exhaust pipe; 21. Insert block; 22. Threaded part; 3. Valve core; 31. Outward-facing part; 32. Lower spring groove; 33. Protruding post; 34. Support part; 35. Elastic claw; 4. Pressure regulating core; 41. Toothed block; 42. Upper spring groove; 43. Movable groove; 44. Air outlet; 5. Valve handle; 6. Valve tip; 7. Spring. Detailed Implementation

[0029] 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.

[0030] 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.

[0031] 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.

[0032] Example:

[0033] refer to Figure 1 As shown, this invention discloses a stepless pressure regulating valve, combined with... Figure 2 As can be seen, it specifically includes valve seat 1, exhaust pipe 2, valve core 3, pressure regulating core 4, spring 7, and valve handle 5.

[0034] Combination Figure 2 and Figure 3 It is understood that the valve seat 1 and the exhaust pipe 2 are fixedly assembled at the center position. The fixed assembly adopts a plug-in assembly. According to the shape of its plug-in fit, preferably, a groove 15 is provided in the middle of the bottom of the valve seat 1, an insert 21 is provided on the exhaust pipe 2, and a threaded part 22 is provided on the exhaust pipe 2. The threaded part 22 passes through the groove 15 for installation on the pressure cooker. This assembly method improves assembly efficiency.

[0035] Combination Figure 2 and Figure 5 It is understood that the inner peripheral wall of the valve seat 1 is provided with a toothed groove 11 with a slope designed along the adjustment direction, and the bottom of the valve seat 1 is provided with a slide 12. In this scheme, the valve seat 1 has a symmetrical internal structure, with two toothed grooves 11 and two slides 12.

[0036] exist Figure 2 As can be seen, the valve core 3 is fitted onto the exhaust pipe 2. The top of the valve core 3 is provided with a silicone valve tip 6 for sealing with the exhaust port on the exhaust pipe 2. The outer side of the valve core 3 is provided with an outwardly flared part 31, on which a lower spring groove 32 is formed. The silicone valve tip 6 can improve the pressure holding performance.

[0037] Combined Figure 3 and Figure 4It is understood that a toothed block 41 is provided on the side wall of the pressure regulating core 4. The toothed block 41 cooperates with the toothed groove 11 and slides on the toothed groove 11. An upper spring groove 42 is provided on the inner side of the pressure regulating core 4. The spring is assembled between the upper spring groove 42 and the lower spring groove 32. The valve handle 5 is fixedly assembled on the pressure regulating core 4 and rotates to make the valve core 3 rotate synchronously. The valve core 3 is raised by the slide table 12 to adjust the spring compression.

[0038] The pressure regulating process is as follows: By rotating the valve handle 5, the pressure regulating core 4 is simultaneously rotated. The bottom of the pressure regulating core 4 slides against the slide table 12, causing the position of the pressure regulating core 4 to rise as it rotates. This raises the position of the lower spring groove 32, while the position of the upper spring groove 42 remains unchanged, further compressing the spring 7 and increasing the counter-force provided by the spring 7. To prevent the pressure regulating core 4 from slipping off the slide table 12, the engagement of the toothed block 41 and the toothed groove 11 provides multi-stage locking, creating a tactile feedback during operation. The teeth on the toothed groove 11 are multiple and follow a certain slope, thus achieving temporary locking during the pressure regulating process. When the force of rotating the valve handle 5 exceeds the locking force of the toothed block 41, further pressure regulation can be achieved.

[0039] To facilitate assembly and improve assembly efficiency, refer to Figure 5 The inner wall of the valve seat 1 is also provided with an assembly groove 13, which is vertically connected to the tooth groove 11. An anti-detachment part 14 is provided between the tooth groove 11 and the assembly groove 13. In this way, the tooth block 41 can smoothly and quickly enter the tooth groove 11 through the assembly groove 13. The anti-detachment part 14 can prevent the pressure regulating core 4 from rotating too far after the overall assembly is completed.

[0040] To improve the smoothness of the circumferential rotation of the valve core 3 and reduce frictional resistance, a protruding post 33 is provided at the bottom of the valve core 3 to slide with the slide table 12, and the end face of the protruding post 33 is spherical.

[0041] To improve pressure holding performance, a support portion 34 is provided on the top of the valve core 3, and a valve tip 6 is assembled at the center of the support portion 34. The lower end of the valve tip 6 is spherical.

[0042] To improve the structural assembly firmness, an elastic claw 35 is provided on the outward-facing part 31, and an active groove 43 is provided on the pressure regulating core 4 to limit the up and down movement of the elastic claw 35.

[0043] In order to facilitate exhaust, an exhaust port 44 is provided on the top of the pressure regulating core 4.

[0044] In the assembly process of this solution, firstly, the exhaust pipe 2 is assembled onto the valve seat 1 from top to bottom, and then the valve tip 6 is assembled onto the valve core 3. Of course, the valve tip 6 can be replaced later. Next, the spring is assembled between the valve core 3 and the pressure regulating core 4. During the docking process between the valve core 3 and the pressure regulating core 4, part of the elastic claw 35 extends into the movable groove 43, allowing the valve core 3 to move up and down along the pressure regulating core 4 but preventing circumferential rotation. The two also form a snap-fit ​​assembly, making them difficult to detach. Afterwards, the above components are assembled into the valve seat 1, with the valve tip 6 blocking the exhaust pipe 2. Then, the valve handle 5 is fitted onto the pressure regulating core 4 from bottom to top, completing the entire assembly. The assembly onto the pressure cooker is achieved through the threads on the valve core 3.

[0045] 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. A stepless pressure regulating valve, characterized in that, It includes a valve seat (1), an exhaust pipe (2), a valve core (3), a pressure regulating core (4), a spring (7), and a valve handle (5); The valve seat (1) and the exhaust pipe (2) are fixedly assembled at the center position. The inner peripheral wall of the valve seat (1) is provided with a toothed groove (11) with a slope designed along the adjustment direction. The bottom of the valve seat (1) is provided with a slide (12). The valve core (3) is fitted onto the exhaust pipe (2). A silicone valve tip (6) is fitted on the top of the valve core (3) for sealing with the exhaust port on the exhaust pipe (2). An outwardly flared part (31) is provided on the outer side of the valve core (3), and a lower spring groove (32) is formed on the outwardly flared part (31). The pressure regulating core (4) has a toothed block (41) on its side wall. The toothed block (41) cooperates with the toothed groove (11) and slides on the toothed groove (11). The pressure regulating core (4) has an upper spring groove (42) on its inner side. The spring (7) is assembled between the upper spring groove (42) and the lower spring groove (32). The valve handle (5) is fixedly assembled on the pressure regulating core (4) and rotates to make the valve core (3) rotate synchronously. The valve core (3) is raised by the slide table (12) to adjust the spring compression.

2. The stepless pressure regulating valve according to claim 1, characterized in that, The valve seat (1) is also provided with an assembly groove (13) on its inner side wall. The assembly groove (13) is vertically connected to the tooth groove (11). An anti-detachment part (14) is provided between the tooth groove (11) and the assembly groove (13).

3. The stepless pressure regulating valve according to claim 1, characterized in that, The valve seat (1) has a groove (15) in the middle of its bottom. The exhaust pipe (2) has a block (21) and a threaded part (22) on it. The threaded part (22) passes through the groove (15) and is used to install on the pressure cooker.

4. The stepless pressure regulating valve according to claim 1, characterized in that, The bottom of the valve core (3) is provided with a protruding post (33) that slides with the slide table (12), and the end face of the protruding post (33) is spherical.

5. The stepless pressure regulating valve according to claim 4, characterized in that, The valve core (3) has a support part (34) at the top, and a valve tip (6) is assembled at the center of the support part (34). The lower end of the valve tip (6) is spherical.

6. The stepless pressure regulating valve according to claim 1, characterized in that, The outward-facing part (31) is provided with an elastic claw (35), and the pressure regulating core (4) is provided with a movable groove (43) for the elastic claw (35) to move up and down.

7. The stepless pressure regulating valve according to claim 1, characterized in that, The pressure regulating core (4) is provided with an air outlet (44) at its top.

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