CN220168576U - High-pressure pneumatic control valve - Google Patents
High-pressure pneumatic control valve Download PDFInfo
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- CN220168576U CN220168576U CN202321482524.XU CN202321482524U CN220168576U CN 220168576 U CN220168576 U CN 220168576U CN 202321482524 U CN202321482524 U CN 202321482524U CN 220168576 U CN220168576 U CN 220168576U
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- 239000012530 fluid Substances 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims description 18
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model provides a high-pressure pneumatic control valve, which is characterized by comprising the following components: the valve comprises a valve body, a valve cover, a valve rod, a pneumatic quick connector, a safety valve, a spring, a piston and a sleeve, wherein a pneumatic cavity is formed in the valve body, the pneumatic cavity is opened at the upper part, the valve cover is fixedly connected to the upper opening, the pneumatic cavity is respectively connected with the pneumatic quick connector and the safety valve in the horizontal direction, and the pneumatic quick connector is connected with an air supply source; the valve body is internally provided with a valve cavity, the pneumatic cavity is communicated with the valve cavity, and the valve cavity is respectively communicated with a working fluid inlet and a working fluid outlet; the lower end face of the valve cover is provided with a valve cover spring groove, and the upper end part of the spring is embedded and arranged in the valve cover spring groove; the piston is arranged in the pneumatic cavity, a piston spring groove is formed in the upper end face of the piston, and the lower end part of the spring is embedded in the piston spring groove; the sleeve is fixed on the valve body; the upper end part of the valve rod is fixedly connected with the piston, the middle part of the valve rod is inserted into the sleeve, and the lower end part of the valve rod is positioned in the valve cavity.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a high-pressure pneumatic control valve.
Background
The high-pressure valve is a valve with the fluid working pressure being more than 9.81MPa and less than 78.48 MPa. The high-pressure valve with the pressure parameter of 30MPa in the market is widely applied at present. However, the high-pressure valve for controlling the flow of gas and fluid with the working pressure parameter of 30MPa in the market is a manual valve, and the operation mode is to manually screw a handle to drive a valve rod to realize the operation of opening and closing the valve, and the mode has some disadvantages: on one hand, the manual operation mode is time-consuming and labor-consuming; on the other hand, when a plurality of high-pressure valves are arranged in the production system, the manual mode is not beneficial to automatically and uniformly managing the whole production system.
In view of the above problems, there is a need to develop a high-pressure pneumatic control valve suitable for controlling the flow of gas with a pressure parameter of 30MPa, and in addition, the design is scientific and reasonable, and the pneumatic control valve is designed to realize pneumatic air supply with smaller pressure, which is also a problem to be solved by the present utility model.
Disclosure of Invention
The present utility model has been made to solve the above problems, and an object of the present utility model is to provide a high-pressure air control valve suitable for controlling the flow of air with a pressure parameter of 30 MPa.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a high-pressure pneumatic control valve, which is characterized by comprising the following components: the valve comprises a valve body, a valve cover, a valve rod, a pneumatic quick connector, a safety valve, a spring, a piston and a sleeve, wherein a pneumatic cavity is formed in the valve body, the pneumatic cavity is opened at the upper part, the valve cover is fixedly connected to the upper opening, the pneumatic cavity is respectively connected with the pneumatic quick connector and the safety valve in the horizontal direction, and the pneumatic quick connector is connected with an air supply source; the valve body is internally provided with a valve cavity, the pneumatic cavity is communicated with the valve cavity, and the valve cavity is respectively communicated with a working fluid inlet and a working fluid outlet; the lower end face of the valve cover is provided with a valve cover spring groove, and the upper end part of the spring is embedded and arranged in the valve cover spring groove; the piston is arranged in the pneumatic cavity, a piston spring groove is formed in the upper end face of the piston, and the lower end part of the spring is embedded in the piston spring groove; a sleeve is arranged in a vertical space communicated between the pneumatic cavity and the valve cavity, and the sleeve is fixed on the valve body; the upper end of the valve rod is fixedly connected with the piston, the middle part of the valve rod is inserted into the sleeve, and the lower end of the valve rod is positioned in the valve cavity.
Further, in the high-pressure air control valve provided by the utility model, the high-pressure air control valve may further have the following characteristics: wherein the horizontal section of the pneumatic cavity is circular; the piston is round, a through hole which penetrates up and down is formed in the middle of the piston, and an inner thread is formed in the inner wall of the upper section of the through hole; the upper end of the valve rod is provided with external threads, and the valve rod is fixedly connected with the piston through threads.
Further, in the high-pressure air control valve provided by the utility model, the high-pressure air control valve may further have the following characteristics: the piston comprises a piston body, a piston and a first sealing ring, wherein a first annular groove is formed in the outer circumferential wall of the piston, and the first sealing ring is arranged in the first annular groove.
Further, in the high-pressure air control valve provided by the utility model, the high-pressure air control valve may further have the following characteristics: wherein, the second annular groove has been seted up to the hypomere inner wall of the through-hole of piston, installs the second sealing washer in the second annular groove.
Further, in the high-pressure air control valve provided by the utility model, the high-pressure air control valve may further have the following characteristics: wherein, the air feed channel that the inside of pneumatic quick connector set up is L type structure.
Further, in the high-pressure air control valve provided by the utility model, the high-pressure air control valve may further have the following characteristics: wherein, the middle part of valve pole still overlaps in the below position that is located the sleeve and is equipped with a plurality of sealing washer.
Further, in the high-pressure air control valve provided by the utility model, the high-pressure air control valve may further have the following characteristics: wherein, the top of valve gap is opened there is the gas pocket.
The utility model has the following functions and effects:
in the high-pressure pneumatic control valve, the pneumatic quick connector is used for supplying air to drive the piston to move upwards, so as to drive the valve rod to move upwards and open the valve; after stopping the air supply, the spring is reset to drive the piston to move downwards, and then drive the valve rod to move downwards to close the valve. The high-pressure pneumatic control valve is scientific and reasonable in structure, and can realize valve control on 30MPa high-pressure working fluid by using a 0.7MPA pneumatic air supply source. In addition, the high-pressure pneumatic control valve is applied to a production system, and is beneficial to automatic management.
Drawings
FIG. 1 is a schematic view of a high pressure pneumatic control valve in a closed state according to an embodiment of the present utility model;
fig. 2 is a schematic view of a high-pressure air control valve in an open state according to an embodiment of the present utility model.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement of the purposes and the effects of the present utility model easy to understand, the following embodiments specifically describe the technical scheme of the present utility model with reference to the accompanying drawings.
< example >
Referring to fig. 1 and 2, the present embodiment provides a high-pressure pneumatic control valve, which comprises a valve body 1, a valve cover 2, a valve rod 3, a pneumatic quick connector 4, a safety valve 5, a spring 6, a piston 7 and a sleeve 8.
The inside of the valve body 1 is provided with a pneumatic cavity 1a, the pneumatic cavity 1a is an upper opening, and the horizontal section of the pneumatic cavity 1a is circular. The inner wall of the upper opening of the pneumatic cavity 1a is provided with an internal thread, the valve cover 2 is provided with an external thread, and the valve cover 2 is fixed at the upper opening of the pneumatic cavity 1a through threaded connection. The bottom of the pneumatic chamber 1a is connected with a pneumatic quick connector 4 and a safety valve 5 in the horizontal direction respectively. The pneumatic quick connector 4 is connected with an air supply source through a pipeline and is used for supplying air into the pneumatic cavity 1a so as to drive the piston 7 to move. The air supply channel 4a arranged in the pneumatic quick connector 4 is of an L-shaped structure, so that the pneumatic quick connector is convenient to butt joint with air supply source equipment. In this embodiment, the air supply source refers to air of 0.7MPA supplied from the air compressor device.
The valve body 1 is also internally provided with a valve cavity 1b, the valve cavity 1b is positioned in the middle of the valve body 1, and the pneumatic cavity 1a is connected with the valve cavity 1b through a vertical space. In this vertical space, a sleeve 8 is installed, and specifically, the valve body 1 is provided with an internal thread at an upper end portion of the vertical space, the sleeve 8 is provided with an external thread, and the sleeve 8 is fixed at an upper end portion position of the vertical space by threaded connection.
The valve chamber 1b communicates with the working fluid inlet and the working fluid outlet, respectively. In this embodiment, the working fluid inlet is vertically opened, and is communicated with the bottom of the valve cavity 1b, and the working fluid inlet is installed and connected with the first through clamping sleeve connector 12. The working fluid outlet is transversely arranged and communicated with the side face of the valve cavity 1b, and is provided with a second straight-through cutting sleeve joint 13. The working fluid in this example is a high pressure gas of 30 MPA.
The top of the valve cover 2 is provided with an air hole 2a. The lower end face of the valve cover 2 is provided with a valve cover spring groove, and the upper end part of the spring 6 is embedded and arranged in the valve cover spring groove. The upper end face of the piston 7 is provided with a piston spring groove, and the lower end part of the spring 6 is embedded and arranged in the piston spring groove.
The piston 7 is in a round block shape, and the piston 7 is arranged in the pneumatic cavity 1 a. The circumference outer wall of the piston 7 is provided with a first annular groove, a first sealing ring 9 is arranged in the first annular groove, and the first sealing ring 9 is used for sealing between the piston 7 and the inner wall of the pneumatic cavity 1 a.
The upper end of the shutter lever 3 is fixedly connected with the piston 7, specifically: the middle part of piston 7 has seted up the through-hole that link up from top to bottom, and the upper segment inner wall of through-hole is provided with the internal thread, and the upper end of valve pole 3 is provided with the external screw thread, and valve pole 3 passes through threaded connection to be fixed on piston 7. In addition, the middle part of the valve rod 3 is inserted into the sleeve 8 and can move up and down along the sleeve 8. The lower end of the valve rod 3 is located in the valve cavity 1b, the lower end of the valve rod 3 is shaped like a big head pestle, on one hand, the lower end of the valve rod 3 is limited to move only in the valve cavity 1b, and on the other hand, when the piston is closed, the lower end of the valve rod 3 is blocked at a connecting hole connected with the working fluid inlet at the bottom of the valve cavity 1 b.
The inner wall of the lower section of the through hole of the piston 7 is provided with a second annular groove, a second sealing ring 10 is arranged in the second annular groove, and the second sealing ring 10 is used for sealing between the piston 7 and the valve rod 3.
The middle part of valve pole 3 is located sleeve 8 below the position and overlaps in proper order from top to bottom and is equipped with a plurality of sealing washer 11, and sealing washer 11 is three in this embodiment, and sealing washer 11 is used for realizing sealing between valve pocket 1b and the pneumatic chamber 1a in top, ensures that the pneumatic fluid of below working fluid and top each other does not influence.
The working process of the high-pressure pneumatic control valve of this embodiment is as follows:
when the valve needs to be opened, air is supplied through the pneumatic quick connector 4, 0.7MPA of air is input into the pneumatic cavity 1a, and the piston 7 is pushed to move upwards. When the piston 7 moves upwards, the air extruded above the piston 7 can be smoothly discharged through the air hole 2a, so that the blocking force when the piston 7 moves upwards is small, and the smooth upward movement is ensured. When the piston 7 moves upwards, the spring 6 will be contracted. When the piston 7 moves upwards, the valve rod 3 is driven to move upwards, when the lower end of the valve rod 3 moves upwards, the connecting hole between the working fluid inlet and the bottom of the valve cavity 1b is opened, at the moment, 30MPA gas of the first straight-through clamping sleeve joint 12 can smoothly enter the valve cavity 1b, and then flows out of the second straight-through clamping sleeve joint 13, so that the valve is opened. When the valve needs to be closed, the pneumatic quick connector 4 does not supply air, the piston 7 moves downwards under the reset action of the spring, the piston 7 drives the valve rod 3 to move downwards, and finally the lower end of the valve rod 3 plugs the connecting hole of the working fluid air inlet and the bottom of the valve cavity 1b again, so that the valve is closed.
The above-described embodiments are only preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model, but various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model are included in the protection scope of the present utility model.
Claims (7)
1. A high pressure pneumatic control valve, comprising: valve body, valve cover, valve rod, pneumatic quick connector, safety valve, spring, piston and sleeve,
the valve comprises a valve body, a valve cover, a pneumatic cavity, a safety valve, a pneumatic quick connector and a gas supply source, wherein the pneumatic cavity is arranged in the valve body and is provided with an upper opening, the valve cover is fixedly connected to the upper opening, the pneumatic cavity is respectively connected with the pneumatic quick connector and the safety valve in the horizontal direction, and the pneumatic quick connector is connected with the gas supply source;
the inside of the valve body is also provided with a valve cavity, the pneumatic cavity is communicated with the valve cavity, and the valve cavity is respectively communicated with a working fluid inlet and a working fluid outlet;
the lower end face of the valve cover is provided with a valve cover spring groove, and the upper end part of the spring is embedded and installed in the valve cover spring groove;
the piston is arranged in the pneumatic cavity, a piston spring groove is formed in the upper end face of the piston, and the lower end part of the spring is embedded and installed in the piston spring groove;
the sleeve is arranged in a vertical space communicated between the pneumatic cavity and the valve cavity, and is fixed on the valve body;
the upper end part of the valve rod is fixedly connected with the piston, the middle part of the valve rod is inserted into the sleeve, and the lower end part of the valve rod is positioned in the valve cavity.
2. The high pressure pneumatic control valve of claim 1, wherein:
wherein the horizontal section of the pneumatic cavity is circular;
the piston is round, a through hole which penetrates up and down is formed in the middle of the piston, and an inner thread is formed in the inner wall of the upper section of the through hole;
the upper end of the valve rod is provided with external threads, and the valve rod is fixedly connected with the piston through threads.
3. The high pressure pneumatic control valve of claim 2, wherein:
the piston comprises a piston body, a piston and a first sealing ring, wherein a first annular groove is formed in the outer circumferential wall of the piston, and the first sealing ring is arranged in the first annular groove.
4. The high pressure pneumatic control valve of claim 2, wherein:
the inner wall of the lower section of the through hole of the piston is provided with a second annular groove, and a second sealing ring is arranged in the second annular groove.
5. The high pressure pneumatic control valve of claim 1, wherein:
wherein, the inside of pneumatic quick connector sets up the air feed passageway and is L type structure.
6. The high pressure pneumatic control valve of claim 1, wherein:
the middle part of the valve rod is also sleeved with a plurality of sealing rings at the lower part of the sleeve.
7. The high pressure pneumatic control valve of claim 1, wherein:
wherein, the top of valve gap is opened there is the gas pocket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321482524.XU CN220168576U (en) | 2023-06-12 | 2023-06-12 | High-pressure pneumatic control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321482524.XU CN220168576U (en) | 2023-06-12 | 2023-06-12 | High-pressure pneumatic control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220168576U true CN220168576U (en) | 2023-12-12 |
Family
ID=89062229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321482524.XU Active CN220168576U (en) | 2023-06-12 | 2023-06-12 | High-pressure pneumatic control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220168576U (en) |
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2023
- 2023-06-12 CN CN202321482524.XU patent/CN220168576U/en active Active
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