High-pressure self-opening and closing stop valve

Abstract

The utility model discloses a high-pressure self-opening and closing stop valve, and relates to the field of stop valves. The high-pressure self-opening and closing stop valve comprises a valve body unit and a valve cover unit arranged on the valve body unit, the valve body unit comprises a valve body main body, a valve clack and a valve rod, a valve seat is fixedly installed in the valve body main body, the valve clack is tightly attached to the inner wall of the valve seat, and the bottom end of the valve rod is fixedly connected with the valve clack. The valve deck unit comprises a valve deck body, a manual lifting rod and an elastic assembly, the valve deck body is installed on the valve body, the manual lifting rod is movably inserted into the valve deck body, and the elastic assembly is arranged in the valve deck body. According to the high-pressure self-opening and closing stop valve, the arranged elastic assembly is utilized, the valve rod can be pushed to vertically move under the action of a high-pressure medium, and automatic opening of the valve is achieved. And meanwhile, through the design of a manual lifting rod, an operator can manually adjust the opening degree of the valve when needed.

Description

Technical Field

[0001] This utility model relates to the field of gate valve technology, specifically a high-pressure self-opening and closing gate valve. Background Technology

[0002] In high-pressure fluid systems, valve opening and closing control is crucial. Traditional valves often only offer a single operating mode: either manual opening and closing or automatic opening and closing relying on medium pressure. However, in practical applications, valves often need to meet the requirements of automatic opening and closing under high pressure, while also being able to be opened and closed manually under special circumstances.

[0003] Currently, while some valves on the market can open and close automatically, these valves are often complex in structure, expensive, and lack manual opening and closing capabilities. Manually operated valves, on the other hand, are simple to use, but in high-pressure environments, operators may face significant safety risks, and manual operation is not flexible enough to meet the need for rapid response.

[0004] Therefore, developing a valve that can both achieve high-pressure self-opening and closing, and can also be opened and closed manually when needed, has become an urgent problem to be solved in the field of fluid control systems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a high-pressure self-opening and closing shut-off valve. This solves the problem that existing valves, while capable of automatic opening and closing, are often complex in structure, expensive, and lack manual opening and closing capabilities. While manually operated valves are simple to use, they pose significant safety risks to operators under high pressure, and manual operation is not flexible enough to meet the need for rapid response.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-pressure self-opening and closing shut-off valve, comprising a valve body unit and a valve cover unit disposed on the valve body unit, wherein the valve body unit includes:

[0007] The valve body has a valve seat fixedly installed inside it;

[0008] The valve disc is tightly fitted to the inner wall of the valve seat;

[0009] The valve stem, with its bottom end fixedly connected to the valve disc;

[0010] The valve cover unit includes:

[0011] Valve cover body, which is mounted on valve body body;

[0012] The manual lifting rod is movably inserted into the valve cover body;

[0013] The elastic component is located inside the valve cover body and installed between the manual lifting rod and the valve stem. The high-pressure medium can push the valve stem to move vertically and compress the elastic component, thereby realizing the self-opening and closing of the shut-off valve.

[0014] Preferably, the bottom and outer side of the valve body are respectively provided with an inlet end and an outlet end, and the valve seat is installed on the inner wall of the inlet end.

[0015] Preferably, the elastic component includes:

[0016] A fixed sleeve is located inside the valve cover body and is fixedly connected to the top of the valve stem;

[0017] The bottom end of the limiting rod is movably inserted into the inside of the fixed sleeve, and the top end of the limiting rod is fixedly connected to the end of the manual lifting rod.

[0018] The limiting spring is fixedly installed between the inner bottom wall of the fixed sleeve and the bottom end of the limiting rod.

[0019] Preferably, a sealing cylinder is embedded inside the valve cover body, a manual lifting rod is installed through the sealing cylinder, and a sealing filler is provided between the inside of the sealing cylinder and the outside of the manual lifting rod.

[0020] Preferably, a limiting seat is installed on the upper part of the valve cover body, and a threaded sleeve is rotatably connected to the inner wall of the limiting seat.

[0021] Preferably, the inner wall of the threaded sleeve is threadedly connected to the outer side of the manual lifting rod.

[0022] Preferably, a rotating handle is fixedly installed on the outer side of the threaded sleeve.

[0023] This utility model discloses a high-pressure self-opening and closing shut-off valve, which has the following beneficial effects: This high-pressure self-opening and closing shut-off valve, utilizing an elastic component, can push the valve stem vertically under the action of a high-pressure medium, thus automatically opening the valve. When the medium pressure decreases, the elastic component returns to its original shape, pushing the valve disc to tightly fit against the valve seat, thus automatically closing the valve. This function greatly improves the stability and reliability of the valve under high-pressure environments. Simultaneously, the manual lifting rod design allows operators to manually adjust the valve's opening degree when needed. This function not only improves the valve's flexibility but also provides additional safety assurance when the automatic opening and closing function fails or special operations are required. Combining high-pressure self-opening and closing and manual opening and closing functions, it is suitable for various high-pressure fluid systems, such as those in the petroleum, chemical, and power industries, and has broad application prospects. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0027] Figure 3 This is a cross-sectional view of the valve cover unit and valve stem of this utility model.

[0028] In the diagram: 1. Valve body unit; 11. Valve body body; 12. Valve disc; 13. Valve stem; 14. Inlet end; 15. Outlet end; 2. Valve cover unit; 21. Valve cover body; 22. Manual lifting rod; 23. Elastic component; 231. Fixed sleeve; 232. Limiting rod; 233. Limiting spring; 24. Sealing cylinder; 25. Limiting seat; 26. Threaded sleeve. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] This application provides a high-pressure self-opening and closing shut-off valve, which solves the problem that some existing valves that can automatically open and close are often complex in structure, expensive, and lack manual opening and closing capabilities. While manually operated valves are simple to operate, operators may face significant safety risks in high-pressure environments, and manual operation is not flexible enough to meet the need for rapid response.

[0031] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0032] Example 1

[0033] This utility model discloses a high-pressure self-opening and closing shut-off valve.

[0034] According to the appendix Figure 1-3As shown, the device includes a valve body unit 1 and a valve cover unit 2 disposed on the valve body unit 1. The valve body unit 1 includes:

[0035] The valve body 11 has a valve seat fixedly installed inside it;

[0036] Valve disc 12, which fits tightly against the inner wall of the valve seat;

[0037] The bottom end of the valve stem 13 is fixedly connected to the valve disc 12;

[0038] Valve cover unit 2 includes:

[0039] Valve cover body 21, which is mounted on valve body body 11;

[0040] The manual lifting rod 22 is movably inserted into the valve cover body 21;

[0041] The elastic component 23 is located inside the valve cover body 21 and is installed between the manual lifting rod 22 and the valve stem 13. The high-pressure medium can push the valve stem 13 to move vertically and compress the elastic component 23, thereby realizing the self-opening and closing of the shut-off valve.

[0042] Furthermore, the bottom and outer side of the valve body 11 are respectively provided with an inlet end 14 and an outlet end 15, and the valve seat is installed on the inner wall of the inlet end 14.

[0043] The valve automatically opens by using the elastic component 23, which pushes the valve stem 13 vertically under high-pressure conditions. When the medium pressure decreases, the elastic component 23 returns to its original shape, pushing the valve disc 12 to tightly fit the valve seat, thus automatically closing the valve. This function greatly improves the stability and reliability of the valve under high-pressure environments. Furthermore, the manual lifting rod 22 allows operators to manually adjust the valve's opening degree when needed. This not only enhances the valve's flexibility but also provides additional safety when the automatic opening / closing function fails or special operations are required. Combining high-pressure automatic and manual opening / closing functions, it is suitable for various high-pressure fluid systems, such as those in the petroleum, chemical, and power industries, and has broad application prospects.

[0044] Specifically disclosed, the resilient component 23 includes:

[0045] The fixed sleeve 231 is located inside the valve cover body 21 and is fixedly connected to the top end of the valve stem 13;

[0046] The bottom end of the limiting rod 232 is movably inserted into the inside of the fixed sleeve 231, and the top end of the limiting rod 232 is fixedly connected to the end of the manual lifting rod 22.

[0047] The limiting spring 233 is fixedly installed between the inner bottom wall of the fixed sleeve 231 and the bottom end of the limiting rod 232.

[0048] When the high-pressure medium enters the valve, it pushes the valve disc 12 upward. At the same time, the valve stem 13 also moves vertically along with the valve disc 12, compressing the limit spring 233 through the fixed sleeve 231. Under the action of the high-pressure medium, the limit spring 233 is compressed to a certain extent, and the valve automatically opens, allowing the medium to flow.

[0049] When the medium pressure decreases, the limit spring 233 gradually returns to its original shape, pushing the valve disc 12 downward and tightly fitting the valve seat, thus automatically closing the valve and cutting off the flow of the medium.

[0050] Example 2

[0051] This utility model discloses a high-pressure self-opening and closing shut-off valve.

[0052] According to the appendix Figure 1-3 As shown, the device includes a valve body unit 1 and a valve cover unit 2 disposed on the valve body unit 1. The valve body unit 1 includes:

[0053] The valve body 11 has a valve seat fixedly installed inside it;

[0054] Valve disc 12, which fits tightly against the inner wall of the valve seat;

[0055] The bottom end of the valve stem 13 is fixedly connected to the valve disc 12;

[0056] Valve cover unit 2 includes:

[0057] Valve cover body 21, which is mounted on valve body body 11;

[0058] The manual lifting rod 22 is movably inserted into the valve cover body 21;

[0059] The elastic component 23 is located inside the valve cover body 21 and is installed between the manual lifting rod 22 and the valve stem 13. The high-pressure medium can push the valve stem 13 to move vertically and compress the elastic component 23, thereby realizing the self-opening and closing of the shut-off valve.

[0060] Furthermore, a sealing cylinder 24 is embedded inside the valve cover body 21, and a manual lifting rod 22 is installed through the sealing cylinder 24. A sealing packing is provided between the inside of the sealing cylinder 24 and the outside of the manual lifting rod 22.

[0061] Furthermore, a limiting seat 25 is installed on the upper part of the valve cover body 21, and a threaded sleeve 26 is rotatably connected to the inner wall of the limiting seat 25.

[0062] Furthermore, the inner wall of the threaded sleeve 26 is threadedly connected to the outer side of the manual lifting rod 22.

[0063] Furthermore, a rotating handle is fixedly installed on the outer side of the threaded sleeve 26.

[0064] Rotating the handle rotates the threaded sleeve 26, causing relative movement between it and the threaded connection of the manual lifting rod 22. As the threaded sleeve 26 rotates, the manual lifting rod 22 is gradually lifted. The lifting of the manual lifting rod 22 is transmitted to the valve stem 13 through the elastic component 23, which in turn drives the valve disc 12 to move upward, thus realizing the manual opening of the valve.

[0065] By rotating the handle, the threaded sleeve 26 is rotated in the opposite direction, causing it to move in the opposite direction to the threaded connection of the manual lifting rod 22. As the threaded sleeve 26 rotates in the opposite direction, the manual lifting rod 22 is gradually lowered. The lowering of the manual lifting rod 22 is transmitted to the valve stem 13 through the elastic component 23, which in turn drives the valve disc 12 to move downward and fit tightly against the valve seat, thereby realizing the manual closing of the valve.

[0066] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-pressure self-latching stop valve comprising a valve body unit (1) and a bonnet unit (2) provided on the valve body unit (1), characterized in that, The valve body unit (1) comprises: a valve body (11) with a valve seat fixedly installed inside; a valve disc (12) tightly fitted with the inner wall of the valve seat; a valve rod (13) with a bottom end fixedly connected with the valve disc (12); The valve cover unit (2) comprises: a valve cover body (21) installed on the valve body (11); a manual lifting rod (22) movably inserted in the valve cover body (21); an elastic assembly (23) arranged inside the valve cover body (21) and installed between the manual lifting rod (22) and the valve rod (13), wherein the high-pressure medium can push the valve rod (13) to move vertically and compress the elastic assembly (23), thereby realizing the self-opening and closing of the stop valve.

2. A high-pressure self-latching stop valve according to claim 1, characterized in that The bottom and outer side of the valve body (11) are respectively provided with an inlet end (14) and an outlet end (15), and the valve seat is installed on the inner wall of the inlet end (14).

3. The high pressure self-latching stop valve according to claim 1, wherein The elastic assembly (23) comprises: a fixed sleeve (231) inside the valve cover body (21) and fixedly connected with the top end of the valve rod (13); a limiting rod (232) with a bottom end movably inserted in the fixed sleeve (231) and a top end fixedly connected with the end of the manual lifting rod (22); a limiting spring (233) fixedly installed between the inner bottom wall of the fixed sleeve (231) and the bottom end of the limiting rod (232).

4. The high pressure self-latching stop valve of claim 1, wherein, The inside of the valve cover body (21) is embedded with a sealing cylinder (24), the manual lifting rod (22) is arranged through the sealing cylinder (24), and a sealing packing is arranged between the inside of the sealing cylinder (24) and the outside of the manual lifting rod (22).

5. The high pressure self-latching stop valve according to claim 1, wherein, The upper part of the valve cover body (21) is installed with a limiting seat (25), and the inner wall of the limiting seat (25) is rotatably connected with a threaded sleeve (26).

6. A high pressure self-latching stop valve according to claim 5, wherein The inner wall of the threaded sleeve (26) is threadedly connected with the outside of the manual lifting rod (22).

7. A high pressure self-latching stop valve according to claim 6, wherein A rotating handle is fixedly installed on the outside of the threaded sleeve (26).

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