CN214037058U - Pressure reducing valve with cut-off device - Google Patents
Pressure reducing valve with cut-off device Download PDFInfo
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- CN214037058U CN214037058U CN202023275829.2U CN202023275829U CN214037058U CN 214037058 U CN214037058 U CN 214037058U CN 202023275829 U CN202023275829 U CN 202023275829U CN 214037058 U CN214037058 U CN 214037058U
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- lever
- pressure reducing
- diaphragm
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Abstract
The utility model provides a pressure reducing valve with a cutting device, which is provided with a shell, wherein the shell is provided with the cutting device and the pressure reducing device, the cutting device is provided with a motor, the motor is provided with a motor shaft with threads, and the motor shaft is provided with a nut; the pressure reducing device is provided with a pressure adjusting mechanism and a diaphragm, the pressure adjusting mechanism is provided with a spring, the diaphragm is provided with a central shaft, the central shaft is provided with a limiting table, the shell is further provided with a valve port, a sealing gasket is arranged above the valve port, a lever is arranged above the sealing gasket, the lever is provided with a rotating shaft, and the lever is connected with the lower end of the central shaft. The automatic cutting device solves the technical problems of low automation degree, low cutting speed, poor safety performance and higher overall modification cost in the existing liquefied petroleum gas using equipment. The utility model discloses but wide application is in the gas pipeline.
Description
Technical Field
The utility model relates to a pressure relief device especially relates to a take cutting device's relief pressure valve.
Background
The gas use users in China exceed 1.2 hundred million households, and in the practice of gas safety management, the demand of an actuating mechanism which is economical, safe and energy-saving and can quickly cut off the gas supply is huge.
At present, bottled liquefied petroleum gas in domestic market is still widely used, particularly commercial users, because of low automation degree and low cutting speed, safety accidents caused by using the bottled liquefied petroleum gas also frequently occur, particularly malignant explosion accidents account for more than half of the total amount of explosion accidents in the gas industry, and higher cost is required for the integral modification of the bottled liquefied petroleum gas.
Disclosure of Invention
The utility model discloses low, the cut-off speed is slow, the security performance is poor to degree of automation among the current liquefied petroleum gas user equipment, and the higher technical problem of whole transformation expense provides a simple structure, low cost, simple to operate, cut-off speed is fast, safe and reliable, long service life's take cutting device's relief pressure valve.
Therefore, the technical scheme of the utility model is that, the pressure reducing valve with the cutting device is provided with a shell, the shell is provided with the cutting device and the pressure reducing device, the cutting device is provided with a motor, the motor is provided with a threaded motor shaft, the motor shaft is provided with a nut, and the motor shaft is in threaded connection with the nut; the pressure reducing device is provided with a pressure adjusting mechanism and a diaphragm, the pressure adjusting mechanism is provided with a spring, the spring is arranged above the diaphragm, the diaphragm is provided with a central shaft, the central shaft is provided with a limiting table, the diaphragm is arranged above the limiting table, the diaphragm is arranged below the nut, the shell is further provided with a valve port, a sealing gasket is arranged above the valve port, a lever is arranged above the sealing gasket, a rotating shaft is arranged on the lever, and the lever is connected with the lower end of the central shaft.
Preferably, the housing includes a valve body and a valve cover, the valve port is disposed on the valve body, the motor is fixedly mounted on the valve cover, the rotating shaft is mounted on the valve body, and the valve body is connected to the valve cover through a stop.
Preferably, the sealing gasket and the lever are of an integrated structure.
The utility model has the advantages that,
(1) according to the scheme, the nut is driven to move downwards through the rotation of the motor, the sealing gasket is compressed, the closing of a valve port is realized, meanwhile, under the action of the lower end face of the nut, the lever at one end of the sealing gasket moves downwards, one end, connected with the central shaft, of the lever moves upwards, the central shaft is driven to move upwards, and the spring is compressed; when the motor rotates reversely, the nut is driven to move upwards, the spring rebounds, the central shaft moves downwards under the action of the spring force, the lever at one end of the sealing gasket moves upwards to drive the sealing gasket to lift up, and the valve port is opened;
(2) the utility model discloses simple structure, low cost, simple to operate, cut off fastly, cut off the energy consumption low, the operation is stable, long service life, can extensively use widely.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
The symbols in the drawings illustrate that:
1. a cutting device; 11. a motor; 12. a motor shaft; 13. a nut; 2. a pressure reducing device; 21. a spring; 22. a membrane; 23. a lever; 24. a central shaft; 25. a rotating shaft; 26. a gasket; 27. a limiting table; 3. a housing; 31. a valve cover; 32. a valve body; 33. and (4) valve ports.
Detailed Description
The present invention will be further described with reference to the following examples.
A pressure reducing valve with a cut-off device is provided with a housing 3, the housing 3 comprises a valve cover 31 and a valve body 32, and the valve body 32 is connected with the valve cover 31 in a stop way. The casing 3 is provided with a cutting device 1 and a pressure reducing device 2, the cutting device 1 is provided with a motor 11, the motor 11 is provided with a threaded motor shaft 12, the motor shaft 12 is provided with a nut 13, and the motor shaft 12 is in threaded connection with the nut 13.
The pressure reducing device 2 is provided with a pressure adjusting mechanism, the pressure adjusting mechanism is provided with a spring 21 and a diaphragm 22, the diaphragm 22 is located below the nut 13, the spring 21 is arranged above the diaphragm 22, the diaphragm 22 is provided with a central shaft 24, the central shaft 24 is provided with a limiting table 27, and the diaphragm 22 is arranged above the limiting table 27. The lower part of the central shaft 24 is connected with one end of the lever 23, the lower part of the other end of the lever 23 is provided with a sealing gasket 26, and the sealing gasket 26 and the lever 23 are of an integrated structure. The lever 23 is provided with a rotating shaft 25, and the rotating shaft 25 is fixed on the valve body 32.
The motor 11 is fixedly arranged on the valve cover 31, the housing 3 is provided with a valve port 33, and the valve port 33 is positioned below the sealing gasket 26.
In the scheme, the motor 11 rotates to drive the nut 13 to move downwards to compress the sealing gasket 26, so that the valve port 33 is closed, meanwhile, under the action of the lower end surface of the nut 13, the lever 23 at one end of the sealing gasket 26 moves downwards, one end of the lever 23 connected with the central shaft 24 moves upwards to drive the central shaft 24 to move upwards, so that the spring 21 is compressed; when the motor 11 rotates reversely, the nut 1 is driven to move upwards, the spring 21 rebounds, the central shaft 24 moves downwards under the action of the spring force, the lever 23 at one end of the sealing gasket 26 moves upwards, the sealing gasket 26 is driven to lift, and the valve port 33 is opened;
the utility model discloses simple structure, low cost, simple to operate, cut off fastly, cut off the energy consumption low, the operation is stable, long service life, can extensively use widely.
However, the above description is only an embodiment of the present invention, and the scope of the present invention should not be limited thereto, so that the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims of the present invention.
Claims (3)
1. A pressure reducing valve with a cutting device is provided with a shell and is characterized in that the shell is provided with the cutting device and the pressure reducing device, the cutting device is provided with a motor, a motor shaft with threads is arranged on the motor, a nut is arranged on the motor shaft, and the motor shaft is in threaded connection with the nut; the pressure reducing device is provided with a pressure adjusting mechanism and a diaphragm, the pressure adjusting mechanism is provided with a spring, the spring is arranged above the diaphragm, the diaphragm is provided with a central shaft, the central shaft is provided with a limiting table, the diaphragm is arranged above the limiting table, the diaphragm is arranged below the nut, the shell is further provided with a valve port, a sealing gasket is arranged above the valve port, a lever is arranged above the sealing gasket, a rotating shaft is arranged on the lever, and the lever is connected with the lower end of the central shaft.
2. The pressure reducing valve with a shut-off device as claimed in claim 1, wherein the housing includes a valve body and a valve cover, the valve port is disposed on the valve body, the motor is fixedly mounted on the valve cover, the shaft is mounted on the valve body, and the valve body is connected to the valve cover by a stop.
3. The pressure relief valve with shut off device of claim 1, wherein said gasket is of unitary construction with said lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023275829.2U CN214037058U (en) | 2020-12-29 | 2020-12-29 | Pressure reducing valve with cut-off device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023275829.2U CN214037058U (en) | 2020-12-29 | 2020-12-29 | Pressure reducing valve with cut-off device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214037058U true CN214037058U (en) | 2021-08-24 |
Family
ID=77343538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023275829.2U Active CN214037058U (en) | 2020-12-29 | 2020-12-29 | Pressure reducing valve with cut-off device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214037058U (en) |
-
2020
- 2020-12-29 CN CN202023275829.2U patent/CN214037058U/en active Active
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