CN217130429U - Pipeline pressure relief device - Google Patents
Pipeline pressure relief device Download PDFInfo
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- CN217130429U CN217130429U CN202220006685.0U CN202220006685U CN217130429U CN 217130429 U CN217130429 U CN 217130429U CN 202220006685 U CN202220006685 U CN 202220006685U CN 217130429 U CN217130429 U CN 217130429U
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- pressure
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Abstract
The utility model relates to a pipeline pressure relief device, which comprises a quick joint connected with a pipe body, an inner wire connected with the quick joint and an outer wire connected with the inner wire in a matching way, wherein the inner wire is in threaded fit with the outer wire and has a gap therebetween, and a rotating hand wheel is arranged at one end of the outer wire, which is far away from the inner wire; a pressure adjusting cavity is formed between the inner wire and the outer wire, and a pressure self-adjusting device is arranged in the pressure adjusting cavity; when the pressure of fluid in the pipe body is too high, the fluid rushes into the pressure channel, when the pressure is enough high, the steel balls can be pushed upwards by overcoming the elastic force of the spring, the fluid is flushed out from the pressure channel and seeps out from a gap between the inner wire and the outer wire, when the internal pressure is reduced and is not enough to overcome the elastic force of the spring, the steel balls are pushed by the spring to be abutted against the pressure channel again, and the pipeline returns to a sealing state again; thereby venting the tubing.
Description
Technical Field
The utility model relates to a pipeline protection device, in particular to pipeline pressure relief device.
Background
A pipeline is a device for conveying gas, liquid or fluid with solid particles, which is formed by connecting pipes, pipe connectors, valves and the like; the use of pipelines is very widespread, mainly in water supply, drainage, heating, gas supply, long-distance oil and gas delivery, agricultural irrigation, hydraulic engineering and various industrial installations. Generally, in order to enable fluid to be smoothly conveyed in a pipe body, the fluid can be conveyed by utilizing the pressure or gravity of the fluid, and can also be pressurized by utilizing an air blower, a compressor, a pump and the like, so that the internal pressure of the pipeline is higher, when a certain part of the pipeline is frozen, the internal pressure of the pipeline can be increased, if the pipeline cannot be safely decompressed in time, the medium in the pipeline is discharged, and the pressure of the medium in the pipeline is rapidly reduced, and disastrous accidents can be caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a pipeline pressure relief device.
The above technical purpose of the present invention can be achieved by the following technical solutions: a pipeline pressure relief device comprises a quick connector used for being connected with a pipe body, an inner wire connected with the quick connector, and an outer wire connected with the inner wire in a matched mode, wherein the inner wire and the outer wire are in threaded fit and have a gap, and a rotating hand wheel is arranged at one end, away from the inner wire, of the outer wire; a pressure adjusting cavity is formed between the inner wire and the outer wire, and a pressure self-adjusting device is arranged in the pressure adjusting cavity.
Preferably, a pressure channel penetrating through the thickness of the quick connector is arranged on the quick connector, the pressure self-adjusting device comprises a steel ball and a spring, the steel ball is abutted to the pressure channel, one end of the spring is abutted to the steel ball, and the other end of the spring is abutted to the outer wire.
By adopting the technical scheme, the quick connector is connected with the pipe body, when the pressure of fluid in the pipe body is overlarge, the fluid rushes into the pressure channel, when the pressure is large enough, the elastic force of the spring can be overcome to push the steel balls upwards, the fluid is flushed out from the pressure channel and seeps out from a gap between the inner wire and the outer wire, when the internal pressure is reduced and is not enough to overcome the elastic force of the spring, the steel balls are pushed by the spring to be abutted against the pressure channel again, and the pipeline returns to a sealing state again; thereby venting the tubing.
Preferably, a silica gel pad for sealing is arranged at the pressure channel.
Preferably, the pressure channel is circular in cross-sectional shape.
Preferably, the diameter of the steel ball is larger than that of the pressure channel.
To sum up, the utility model discloses following beneficial effect has:
when the pressure of fluid in the pipe body is too high, the fluid rushes into the pressure channel, when the pressure is enough high, the steel balls can be pushed upwards by overcoming the elastic force of the spring, the fluid is flushed out from the pressure channel and seeps out from a gap between the inner wire and the outer wire, when the internal pressure is reduced and is not enough to overcome the elastic force of the spring, the steel balls are pushed by the spring to be abutted against the pressure channel again, and the pipeline returns to a sealing state again; thereby venting the tubing.
Drawings
FIG. 1 is a sectional view of the entire structure in the embodiment.
In the figure, 1, a quick connector; 11. a pressure channel; 111. a silica gel pad; 2. internal thread; 21. a pressure regulating chamber; 3. external silk; 4. rotating a hand wheel; 51. steel balls; 52. a spring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Example (b):
a pipeline pressure relief device is shown in figure 1, and comprises a quick connector 1 connected with a pipe body, an inner wire 2 connected with the quick connector 1, and an outer wire 3 connected with the inner wire in a matching way, wherein the inner wire 2 is in threaded fit with the outer wire 3, and a gap is reserved between the inner wire 2 and the outer wire 3; one end of the outer wire 3, which is far away from the inner wire 2, is provided with a rotating hand wheel 4; a pressure adjusting cavity 21 is formed between the inner wire 2 and the outer wire 3, and a pressure self-adjusting device is arranged in the pressure adjusting cavity 21.
As shown in fig. 1, a pressure channel 11 penetrating through the thickness of the quick coupling 1 is provided, the pressure self-adjusting device comprises a steel ball 51 and a spring 52 which are abutted to the pressure channel 11, one end of the spring 52 is abutted to the steel ball 51, and the other end is abutted to the outer wire 3; when the device is used, the quick connector 1 is connected with a pipe body, when the pressure of fluid in the pipe body is overlarge, the fluid flows into the pressure channel 11, when the pressure is large enough, the steel ball 51 can be pushed upwards by overcoming the elastic force of the spring 52, the fluid is flushed out from the pressure channel 11 and seeps out from a gap between the inner wire 2 and the outer wire 3, when the internal pressure is reduced and is not enough to overcome the elastic force of the spring 52, the steel ball 51 is pushed by the spring 52 to be abutted against the pressure channel 11 again, and the pipeline returns to a sealing state again; the hand wheel 4 is held and rotated to rotate the outer thread, the size of the adjusting cavity 21 can be adjusted, along with the change of the size of the adjusting cavity 21, the state of the spring 52 is changed, and the critical pressure for releasing pressure in the tube body is changed.
As shown in fig. 1, a silicone gasket 111 for sealing is disposed at the pressure channel 11, and the silicone gasket 111 prevents fluid in the pipe from leaking from the connection between the quick connector 1 and the inner wire 2.
As shown in fig. 1, the pressure channel 11 is circular in cross-sectional shape.
As shown in fig. 1, the diameter of the steel ball 51 is larger than that of the pressure channel 11, so that the steel ball 51 cannot fall into the pressure channel 11 and can abut against the surface of the pressure channel 11 to seal the pressure channel 11.
The working principle is as follows:
the quick connector 1 is connected with a pipe body, when the pressure of fluid in the pipe body is overlarge, the fluid flows into the pressure channel 11, when the pressure is large enough, the steel ball 51 can be pushed upwards by overcoming the elastic force of the spring 52, the fluid is flushed out from the pressure channel 11 and seeps out from a gap between the inner wire 2 and the outer wire 3, when the internal pressure is reduced and is not enough to overcome the elastic force of the spring 52, the steel ball 51 is pushed by the spring 52 to be abutted against the pressure channel 11 again, and the pipeline returns to a sealing state again.
Claims (5)
1. A pipeline pressure relief device is characterized in that: the pipe joint comprises a quick connector (1) used for being connected with a pipe body, an inner wire (2) connected with the quick connector (1), and an outer wire (3) connected with the inner wire in a matched mode, wherein the inner wire (2) is in threaded fit with the outer wire (3) and has a gap, and a rotating hand wheel (4) is arranged at one end, deviating from the inner wire (2), of the outer wire (3); a pressure adjusting cavity (21) is formed between the inner wire (2) and the outer wire (3), and a pressure self-adjusting device is arranged in the pressure adjusting cavity (21).
2. The pipeline pressure relief device of claim 1, wherein: the quick connector (1) is provided with a pressure channel (11) penetrating through the thickness of the quick connector, the pressure self-adjusting device comprises a steel ball (51) and a spring (52) which are abutted to the pressure channel (11), one end of the spring (52) is abutted to the steel ball (51), and the other end of the spring is abutted to the outer wire (3).
3. The pipeline pressure relief device of claim 2, wherein: and a silica gel pad (111) for sealing is arranged at the pressure channel (11).
4. The pipeline pressure relief device of claim 3, wherein: the cross section of the pressure channel (11) is circular.
5. The pipeline pressure relief device of claim 4, wherein: the diameter of the steel ball (51) is larger than that of the pressure channel (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220006685.0U CN217130429U (en) | 2022-01-05 | 2022-01-05 | Pipeline pressure relief device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220006685.0U CN217130429U (en) | 2022-01-05 | 2022-01-05 | Pipeline pressure relief device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217130429U true CN217130429U (en) | 2022-08-05 |
Family
ID=82620560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220006685.0U Active CN217130429U (en) | 2022-01-05 | 2022-01-05 | Pipeline pressure relief device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217130429U (en) |
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2022
- 2022-01-05 CN CN202220006685.0U patent/CN217130429U/en active Active
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