Micro-pressure regulating valve

Abstract

The utility model discloses a micro-pressure regulating valve which comprises a regulating valve body, a regulating channel is arranged in the regulating valve body, and a valve seat is arranged on a regulating portion of the regulating channel. The valve cover assembly is fixed to the upper portion of the adjusting valve body through a locking structure, a valve rod body is arranged in the valve cover assembly in a guiding mode, a valve element is installed at the lower end of the valve rod body, and the position of the valve element corresponds to the position of the valve seat. And the adjusting module is arranged above the valve cover body, the adjusting module and the valve cover body are also connected through a locking structure, and the upper end of the valve rod is connected with the adjusting end of the adjusting module. Through relative movement of the valve rod main body and the valve core, accurate adjustment of fluid pressure can be realized. The good contact between the valve core and the valve seat ensures that the pressure of the fluid passing through the adjusting channel can be finely adjusted as required, and the fluid control requirements under various working conditions are met.

Description

Technical Field

[0001] The utility model relates to a regulating valve, in particular to a micro-pressure regulating valve. Background Art

[0002] Traditional micro-pressure regulating valves have several significant problems that limit their performance and reliability in practical applications:

[0003] The designs of many traditional micro-pressure regulating valves cannot achieve precise regulation of fluid pressure, resulting in unstable fluid flow, which affects the working efficiency and safety of equipment. This situation is particularly evident in industries with strict requirements for fluid pressure, such as chemical industry and pharmaceuticals.

[0004] In existing valves, the guiding system design of the valve stem and the valve core is often not delicate enough, resulting in friction or jamming of the valve stem during operation. This poor guidance not only reduces the response speed of the valve but also may damage the valve stem and the valve core, shortening the service life of the valve.

[0005] The connection between the valve cover assembly and the main body of traditional micro-pressure regulating valves often relies on simple threaded connections or welding. This connection method is prone to loosening during long-term use, resulting in air leakage or liquid leakage, affecting the sealing performance and reliability of the regulating valve. Summary of the Utility Model

[0006] The technical problem to be solved by the utility model is to provide a micro-pressure regulating valve to solve the problems existing in the background art.

[0007] The micro-pressure regulating valve of the utility model is realized through the following technical solutions, including:

[0008] A regulating valve body, wherein an adjustment channel is arranged inside the regulating valve body, and a valve seat is arranged at the adjustment part of the adjustment channel;

[0009] A valve cover assembly, which is fixed above the regulating valve body through a locking structure, and a valve stem body is guided inside the valve cover assembly. A valve core is installed at the lower end of the valve stem body, and the position of the valve core corresponds to that of the valve seat;

[0010] An adjustment module, which is arranged above the valve cover main body, and the adjustment module is also connected to the valve cover main body through a locking structure, and the upper end of the valve stem is connected to the adjustment end of the adjustment module.

[0011] As a preferred technical solution, the valve cover assembly includes a valve cover main body and a guiding ring;

[0012] The guiding ring is arranged below the valve cover main body. When the valve cover main body is spliced with the regulating valve body, the valve guiding ring is placed between the valve cover main body and the regulating valve main body;

[0013] Both the valve cover body and the guide ring are provided with guide holes for passing through the valve stem body, and the valve stem body is arranged through the guide holes.

[0014] As a preferred technical solution, the locking structure includes a locking screw and a locking seat;

[0015] The locking screw is arranged at the lower die cover of the adjustment module and the connection position below the valve cover body, and the locking seat is arranged at the upper side of the valve cover body and the upper side of the regulating valve body; the adjustment module is connected to the valve cover body, and the valve cover body is connected to the regulating valve body through the locking screw and the locking seat.

[0016] As a preferred technical solution, a guide groove is arranged inside the locking seat, and a locking nut is arranged in the guide groove in a guiding manner; the locking screw passes through the locking seat and is arranged in the guide groove, and is threadedly connected with the locking nut.

[0017] As a preferred technical solution, a spring groove is arranged at the top of the guide groove, and a compression spring is fixed in the spring groove, and the other end of the compression spring contacts the locking nut, thereby increasing the connection locking force.

[0018] As a preferred technical solution, the valve stem body and the valve core are fixed through a locking nut.

[0019] The beneficial effects of the present utility model are:

[0020] Through the relative movement of the valve stem body and the valve core of the present utility model, precise adjustment of the fluid pressure can be achieved. The good contact between the valve core and the valve seat ensures that the pressure of the fluid passing through the adjustment channel can be finely adjusted as needed, meeting the fluid control requirements under various working conditions.

[0021] The guide ring and guide holes arranged in the valve cover assembly of the present utility model ensure that the valve stem body can move smoothly during operation, reduce friction and jamming phenomena, and improve the working stability and response speed of the regulating valve. This guiding design makes the adjustment operation more flexible and convenient.

[0022] By adopting the locking structure, the connection stability between the valve cover assembly and the adjustment module is enhanced. The matching design of the guide groove inside the locking seat and the locking nut further improves the firmness of the connection and avoids loosening problems that may occur during long-term operation. Description of the Drawings

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] Figure 1 Schematic three-dimensional structure diagram of the present invention;

[0025] Figure 2 Schematic structure diagram of the valve cover assembly of the present invention;

[0026] Figure 3 and Figure 4 Explosion structure diagram of the present invention;

[0027] Figure 5 Schematic locking structure diagram of the present invention.

[0028] Explanation of reference numerals in the drawings:

[0029] 1, regulating valve body; 2, valve cover assembly; 3, regulating module; 4, regulating channel; 5, valve stem body; 6, valve core; 7, valve seat; 8, valve cover body; 9, guide ring; 10, locking screw; 11, locking seat; 12, connection position; 13, guide groove; 14, locking nut; 15, spring groove; 16, compression spring. Detailed implementation manners

[0030] All features disclosed in this specification, or all steps in the disclosed methods or processes, except for mutually exclusive features and / or steps, can be combined in any manner.

[0031] As Figures 1-4 shown, a micro-pressure regulating valve of the present invention includes a regulating valve body 1, an internal regulating channel 4 is provided in the regulating valve body 1, and a valve seat 7 is provided at the regulating part of the regulating channel 4;

[0032] A valve cover assembly 2, the valve cover assembly 2 is fixed above the regulating valve body 1 through a locking structure, and a valve stem body 5 is guidedly arranged in the valve cover assembly 2, and a valve core 6 is installed at the lower end of the valve stem body 5, and the valve core 6 corresponds to the position of the valve seat 7. By moving the valve core 6 in the valve seat 7, the regulation of the fluid pressure can be achieved;

[0033] A regulating module 3, the regulating module 3 is arranged above the valve cover body 8, and the regulating module 3 is also connected to the valve cover body 8 through a locking structure, and the upper end of the valve stem is connected to the regulating end of the regulating module 3, thereby realizing precise control of the position of the valve stem, enabling the user to conveniently perform pressure regulation operations.

[0034] Among them, the valve cover assembly 2 includes a valve cover body 8 and a guide ring 9;

[0035] The guide ring 9 is arranged below the valve cover body 8. When the valve cover body 8 is spliced with the regulating valve body 1, the valve guide ring 9 is placed between the valve cover body 8 and the regulating valve body;

[0036] Both the valve cover body 8 and the guide ring 9 are provided with guide holes for passing through the valve stem body 5. The valve stem body 5 is arranged through the guide holes, so that the valve stem body 5 can smoothly pass through these guide holes and perform precise guiding settings.

[0037] Among them, the locking structure includes a locking screw 10 and a locking seat 11;

[0038] The locking screw 10 is arranged at the lower die cover of the adjusting module 3 and the connecting position 12 below the valve cover body 8, and the locking seat 11 is arranged on the upper side of the valve cover body 8 and the upper side of the regulating valve body 1; The adjusting module 3 is connected to the valve cover body 8, and the valve cover body 8 is connected to the regulating valve body through the locking screw 10 and the locking seat 11.

[0039] In order to further enhance the connection stability, a guide groove 13 is arranged inside the locking seat 11, and a locking nut 14 is arranged in the guide groove 13 in a guiding manner; The locking screw 10 passes through the locking seat 11 and is placed in the guide groove 13 and is threadedly connected to the locking nut 14.

[0040] In addition, a spring groove 15 is arranged at the top of the guide groove 13, and a compression spring 16 is fixed in the spring groove 15, and the other end of the compression spring 16 contacts the locking nut 14, thereby increasing the connection locking force.

[0041] In addition, the valve stem body 5 and the valve core 6 are fixed through the locking nut 14, thereby ensuring the stability and reliability of the regulating valve.

[0042] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any change or replacement that is thought of without creative work should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. A micro-pressure regulating valve, characterized in that, Comprising: A regulating valve body (1), within which an adjusting passage (4) is provided, and a valve seat (7) is provided at the adjusting portion of the adjusting passage (4); A valve cover assembly (2), which is fixed above the regulating valve body (1) through a locking structure, and a valve stem body (5) is guidedly arranged within the valve cover assembly (2), a valve core (6) is installed at the lower end of the valve stem body (5), and the position of the valve core (6) corresponds to that of the valve seat (7); An adjusting module (3), which is arranged above the valve cover body (8), and the adjusting module (3) is also connected to the valve cover body (8) through a locking structure, and the upper end of the valve stem is connected to the adjusting end of the adjusting module (3).

2. The micro-pressure regulating valve according to claim 1, characterized in that: The valve cover assembly (2) includes a valve cover body (8) and a guide ring (9); The guide ring (9) is arranged below the valve cover body (8), and when the valve cover body (8) is spliced with the regulating valve body (1), the valve guide ring (9) is placed between the valve cover body (8) and the regulating valve body; Both the valve cover body (8) and the guide ring (9) are provided with guide holes for passing through the valve stem body (5), and the valve stem body (5) is arranged through the guide holes.

3. The micro-pressure regulating valve according to claim 1, characterized in that: The locking structure includes a locking screw (10) and a locking seat (11); The locking screw (10) is arranged at the lower die cover of the adjusting module (3) and the connection position (12) below the valve cover body (8), and the locking seat (11) is arranged at the upper side surface of the valve cover body (8) and the upper side surface of the regulating valve body (1); the adjusting module (3) and the valve cover body (8), and between the valve cover body (8) and the regulating valve body are connected through the locking screw (10) and the locking seat (11).

4. The micro-pressure regulating valve according to claim 3, characterized in that: A guide groove (13) is provided inside the locking seat (11), and a locking nut (14) is guidedly arranged within the guide groove (13); the locking screw (10) passes through the locking seat (11) and is placed within the guide groove (13), and is threadedly connected to the locking nut (14).

5. The micro-pressure regulating valve according to claim 4, characterized in that: A spring groove (15) is provided at the top of the guide groove (13), and a compression spring (16) is fixed within the spring groove (15), and the other end of the compression spring (16) contacts the locking nut (14), thereby increasing the connection locking force.

6. The micro-pressure regulating valve according to claim 4, wherein: The valve stem body (5) and the valve core (6) are fixed through the locking nut (14).

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