CN219888822U - Overvoltage cutting device for urban village surge tank - Google Patents
Overvoltage cutting device for urban village surge tank Download PDFInfo
- Publication number
- CN219888822U CN219888822U CN202223365639.9U CN202223365639U CN219888822U CN 219888822 U CN219888822 U CN 219888822U CN 202223365639 U CN202223365639 U CN 202223365639U CN 219888822 U CN219888822 U CN 219888822U
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- China
- Prior art keywords
- valve body
- sleeved
- sealing cover
- valve
- air inlet
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- 238000007789 sealing Methods 0.000 claims abstract description 38
- 230000001105 regulatory effect Effects 0.000 claims abstract description 17
- 239000000428 dust Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 43
- 238000012423 maintenance Methods 0.000 description 4
- 239000012528 membrane Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Abstract
The utility model provides an overpressure cutting device of a village pressure regulating box in a city, which comprises a valve body, an air inlet cavity, an air outlet cavity, an air inlet pipe, an air outlet pipe, a valve rod movably sleeved in the valve body and positioned at the inner side of the air inlet, a valve core fixedly sleeved at the bottom end of the valve rod and a first sealing cover fixedly arranged at the top of the valve body, wherein the air inlet cavity, the air outlet cavity and the air inlet are arranged in the valve body, and a first diaphragm fixedly sleeved at the outer side of the valve core is sleeved between the first sealing cover and the valve body. This village surge tank superpressure cutting device in city uses through the cooperation of fixed cover, spring, spacing dish, buckle and shield for the device can rotate the fixed cover and adjust the effort of acting on the valve rod of spacing dish effect and adjust the effort that the case acted on the valve body, and then just can close or open the air inlet to the case when F goes out the increase or reduce, thereby adjusts the inside gas pressure of outlet duct, makes the inside gas pressure adjustable range increase of air duct.
Description
Technical Field
The utility model relates to the technical field of fuel gas transportation, and particularly discloses an overpressure cutting device for a village pressure regulating box in a city.
Background
The pressure regulator installed inside the pressure regulating box is provided with an overpressure cutting device, the gas is cut off through a valve core installed inside a valve body and located inside an air outlet cavity, wherein acting force F generated when a diaphragm deforms, acting force F acting on the diaphragm by air pressure in the air outlet cavity and acting force F acting on the valve body by air pressure in the air inlet cavity are generated, when pressure in the air outlet cavity is larger than a preset value, namely F+F is greater than F in, the air inlet is sealed through upward movement of the valve body, the circulation of the gas is cut off, the size of F is not adjustable due to the fact that the size of F is related to the deformation of the diaphragm, the adjustable range of the air pressure in the air outlet cavity is small, leakage is generated in a pipeline at a user end, the air pressure in the air outlet cavity is smaller than the preset value, namely F+F is smaller than F in, the air inlet is opened through downward movement of the valve body, the air flows, the gas can be continuously leaked, the cutting device can not work normally, and a great potential safety hazard exists.
Disclosure of Invention
In view of the above-mentioned drawbacks or shortcomings in the prior art, the present utility model aims to provide an overpressure cutting device of a village pressure regulating box in a city, which comprises a valve body, an air inlet cavity, an air outlet cavity, an air inlet pipe, an air outlet pipe, a valve rod movably sleeved in the valve body and positioned at the inner side of the air inlet, a valve core fixedly sleeved at the bottom end of the valve rod, and a first sealing cover fixedly installed at the top of the valve body, wherein a first diaphragm fixedly sleeved with the outer side of the valve core is sleeved between the first sealing cover and the valve body, a pressure regulating mechanism is sleeved at the middle thread of the top of the first sealing cover, a first gas monitor and a first exhaust pipe are respectively arranged at two sides of the top of the first sealing cover, a connecting pipe is communicated between the valve body and the air outlet pipe, a first barometer is arranged at the bottom end of the connecting pipe, a second barometer is communicated at the outer side of the air inlet pipe, a second sealing cover is fixedly installed at the bottom of the valve body, a second sealing cover is sleeved between the second sealing cover and the valve body, a mandril positioned below the valve core is fixedly sleeved at the middle of the second sealing cover, a regulating mechanism is fixedly installed at the bottom of the second sealing cover, and a first diaphragm is respectively arranged at two sides of the bottom of the second sealing cover.
Preferably, the pressure regulating mechanism comprises a fixed sleeve movably sleeved outside the top end of the valve core and sleeved inside the first sealing cover through threads, a spring positioned outside the valve core is sleeved on the inner side of the fixed sleeve, a limiting disc is sleeved on the top end of the valve core extending out of the spring, a buckle is clamped on the top end of the valve core extending out of the limiting disc, and a dust cover is sleeved on the top thread of the fixed sleeve.
Preferably, a limit bolt positioned above the first sealing cover is sleeved on one side of the fixing sleeve in a threaded manner.
Preferably, the adjusting mechanism comprises a screw rod, a first guide rod and a second guide rod, wherein the bottom end of the screw rod is rotationally connected inside the second sealing cover, the top end of the screw rod is in threaded sleeve connection with the inside of the ejector rod, the first guide rod and the second guide rod are respectively fixedly sleeved inside the second sealing cover, a fixing plate arranged outside the bottom end of the ejector rod is movably sleeved on the outer sides of the first guide rod and the second guide rod, and a motor fixedly installed below the second sealing cover is fixedly sleeved on the bottom end, extending out of the second sealing cover, of the screw rod through a shaft sleeve.
The beneficial effects are that:
1. this village surge tank superpressure cutting device in city uses through the cooperation of fixed cover, spring, spacing dish, buckle and shield for the device can rotate the fixed cover and adjust the effort of acting on the valve rod of spacing dish effect and adjust the effort that the case acted on the valve body, and then just can close or open the air inlet to the case when F goes out the increase or reduce, thereby adjusts the inside gas pressure of outlet duct, makes the inside gas pressure adjustable range increase of air duct.
2. This village surge tank superpressure cutting device in city uses through the cooperation of lead screw, first guide bar, second guide bar, fixed plate and motor for when the outlet duct produced gas leakage, when the gas pressure in the gas outlet duct detected the gas outlet duct decline sharply, can drive the ejector pin and remove under motor drive, and then press the case through the ejector pin, make the air inlet close, prevent that gas from lasting to reveal to the external world, in order to guarantee cutting device can normally work, reduce the potential safety hazard.
Drawings
Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of a pressure regulating mechanism according to the present utility model;
FIG. 3 is a schematic view of an adjustment mechanism of the present utility model.
In the figure: 1. a valve body; 2. an air inlet cavity; 3. an air outlet cavity; 4. an air inlet; 5. an air inlet pipe; 6. an air outlet pipe; 7. a valve stem; 8. a valve core; 9. a first sealing cover; 10. a first membrane; 11. a pressure regulating mechanism; 111. a fixed sleeve; 112. a spring; 113. a limiting disc; 114. a buckle; 115. a dust cover; 12. a first gas monitor; 13. a first exhaust pipe; 14. a connecting pipe; 15. a first barometer; 16. a second barometer; 17. a second sealing cover; 18. a second membrane; 19. a push rod; 20. an adjusting mechanism; 201. a screw rod; 202. a first guide bar; 203. a second guide bar; 204. a fixing plate; 205. a motor; 21. a second gas monitor; 22. and a second exhaust pipe.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the utility model are shown in the drawings.
The drawings in the embodiments of the utility model: the different kinds of cross-sectional lines in the drawings are not marked according to national standards, and the material of the elements is not required, so that the cross-sectional views of the elements in the drawings are distinguished.
Referring to fig. 1-3, an overpressure cutting device for a village pressure regulating box in city comprises a valve body 1, an air inlet cavity 2, an air outlet cavity 3, an air inlet 4, an air inlet pipe 5, an air outlet pipe 6, a valve rod 7 movably sleeved in the valve body 1 and positioned at the inner side of the air inlet 4, a valve core 8 fixedly sleeved at the bottom end of the valve rod 7, and a first sealing cover 9 fixedly installed at the top of the valve body 1, wherein a first diaphragm 10 fixedly sleeved with the outer side of the valve core 8 is sleeved between the first sealing cover 9 and the valve body 1, a pressure regulating mechanism 11 is sleeved at the middle thread of the top of the first sealing cover 9, a first gas monitor 12 and a first air outlet pipe 13 are respectively arranged at two sides of the top of the first sealing cover 9, the gas at the inner side of the first sealing cover 9 can be detected by the first gas monitor 12, and once the first diaphragm 10 is broken to cause gas leakage, the gas leakage detection and alarm can be carried out through the first gas monitor 12, maintenance personnel can be timely notified to carry out maintenance, a connecting pipe 14 is communicated between the valve body 1 and the gas outlet pipe 6, the bottom end of the connecting pipe 14 is provided with a first barometer 15, the gas pressure inside the gas outlet cavity 3 can be detected by utilizing the first barometer 15, when gas leakage occurs in a gas outlet pipeline, a motor 205 is timely controlled to drive, the valve core 8 is pressed by a push rod 19 to seal the gas inlet 4, the outer side of the gas inlet pipe 5 is communicated with a second barometer 16, a second sealing cover 17 is fixedly arranged at the bottom of the valve body 1, a second diaphragm 18 is sleeved between the second sealing cover 17 and the valve body 1, a push rod 19 positioned below the valve core 8 is fixedly sleeved at the middle part of the second diaphragm 18, an adjusting mechanism 20 is fixedly arranged inside the second sealing cover 17, and the two sides of the bottom of the second sealing cover 17 are respectively provided with a second gas monitor 21 and a second exhaust pipe 22, the gas inside the second sealing cover 17 can be detected by using the second gas monitor 21, and once the second membrane 18 is broken to cause gas leakage, the gas leakage detection and the alarm can be carried out by using the second gas monitor 21, so that maintenance personnel can be informed of maintenance in time.
The pressure regulating mechanism 11 comprises a fixed sleeve 111 movably sleeved on the outer side of the top end of the valve core 8 and sleeved in the first sealing cover 9 in a threaded manner, a spring 112 positioned on the outer side of the valve core 8 is sleeved on the inner side of the fixed sleeve 111, a limit disc 113 is sleeved on the top end of the valve core 8 extending out of the spring 112, a buckle 114 is clamped on the top end of the valve core 8 extending out of the limit disc 113, and a dust cover 115 is sleeved on the top thread of the fixed sleeve 111.
One side of the fixed sleeve 111 is in threaded sleeve connection with a limit bolt above the first sealing cover 9, and the fixed sleeve 111 can be limited and fixed by the limit bolt, so that after the acting force of the limit disc 113 on the valve rod 7 is adjusted by rotating the fixed sleeve 111, the fixed sleeve 111 is not easy to generate autorotation, and the acting force of the spring 112 on the valve core 8 is stable.
Wherein, adjustment mechanism 20 includes that the bottom rotates the lead screw 201 of connecting in the inside and top screw thread cup joints in the inside of ejector pin 19 of second sealed lid 17 and fixed first guide bar 202 and second guide bar 203 of cover 17 in the second respectively, the outside activity of first guide bar 202 and second guide bar 203 cup joints the fixed plate 204 that sets up in the ejector pin 19 bottom outside, through the cooperation use of first guide bar 202, second guide bar 203 and fixed plate 204, make the device carry out spacingly to ejector pin 19 through fixed plate 204, and then guarantee that ejector pin 19 can be under the rotation of lead screw 201 stable remove, the outside bottom of lead screw 201 extension second sealed lid 17 is equipped with fixed mounting in the motor 205 of the inside of second sealed lid 17 through the fixed cover of axle sleeve, motor 205 can detect the gas pressure reduction in the pipeline of giving vent to anger through first barometer 15 and carry out automatic control and control through the distal end computer control.
When the pressure of the gas in the gas outlet cavity 3 is regulated, the compression amount of the spring 112 is regulated by rotating the fixed sleeve 111, so that the acting force of the valve core 8 on the valve body 1 is regulated, when the pressure of the gas in the gas outlet cavity 3 is required to be increased, the spring 112 can be compressed by rotating the fixed sleeve 111, and when the pressure of the gas in the gas outlet cavity 3 is required to be reduced, the compression of the spring 112 can be reduced by reversely rotating the fixed sleeve 111; when the first barometer 15 detects that the pressure of the gas in the gas outlet pipeline drops rapidly, the screw rod 201 is driven to rotate by the driving of the motor 205, the screw rod 201 drives the ejector rod 19 to move while rotating, the ejector rod 19 presses the valve core 8 until the valve core 8 seals the gas inlet 4 completely, the motor 205 is turned off, so that when the gas outlet pipeline leaks, the valve core 8 can still cut off the passage of the pipeline, and the details not described in the specification belong to the prior art known to the person skilled in the art.
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
The above description is only illustrative of the preferred embodiments of the present utility model and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the utility model referred to in the present utility model is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept. Such as the above-mentioned features and the technical features disclosed in the present utility model (but not limited to) having similar functions are replaced with each other.
Claims (4)
1. The utility model provides a village surge tank superpressure cutting device in city, includes valve body (1), set up at the inside inlet chamber (2) of valve body (1), chamber of giving vent to anger (3) and air inlet (4), intercommunication is at intake pipe (5) and outlet duct (6) and the looper valve rod (7) inside valve body (1) and that are located air inlet (4) inboard, the case (8) of suit in valve rod (7) bottom and the first sealed lid (9) at the top of installation valve body (1), its characterized in that: first diaphragm (10) in the case of being equipped with case (8) outside is equipped with to the cover between first sealed lid (9) and valve body (1), pressure regulating mechanism (11) have been cup jointed to the middle part screw thread at first sealed lid (9) top, and the both sides at first sealed lid (9) top are provided with first gas monitor (12) and first blast pipe (13) respectively, the intercommunication has connecting pipe (14) between valve body (1) and outlet duct (6), the bottom of connecting pipe (14) is provided with first barometer (15), the outside intercommunication of intake pipe (5) has second barometer (16), second sealed lid (17) are installed to the bottom of valve body (1), second diaphragm (18) are equipped with to the cover between second sealed lid (17) and valve body (1), ejector pin (19) that are located case (8) below are equipped with to the middle part cover of second diaphragm (18), internally mounted of second sealed lid (17) has adjustment mechanism (20), and the both sides of second sealed lid (17) bottom are provided with second gas monitor (21) and second blast pipe (22) respectively.
2. An urban village surge tank overpressure cut-off device according to claim 1, characterized in that: the pressure regulating mechanism (11) comprises a fixed sleeve (111) sleeved outside the top end of the valve core (8) and sleeved inside the first sealing cover (9) through threads, a spring (112) positioned outside the valve core (8) is sleeved on the inner side of the fixed sleeve (111), a limiting disc (113) is sleeved on the top end of the valve core (8) extending out of the spring (112), a buckle (114) is clamped on the top end of the valve core (8) extending out of the limiting disc (113), and a dust cover (115) is sleeved on the top thread of the fixed sleeve (111).
3. An urban village surge tank overpressure cut-off device according to claim 2, characterized in that: one side of the fixed sleeve (111) is in threaded sleeve connection with a limit bolt positioned above the first sealing cover (9).
4. An urban village surge tank overpressure cut-off device according to claim 1, characterized in that: the adjusting mechanism (20) comprises a screw rod (201) with the bottom end rotationally connected inside a second sealing cover (17) and the top end in threaded sleeve connection inside a top rod (19), and a first guide rod (202) and a second guide rod (203) which are respectively sleeved inside the second sealing cover (17), wherein the outer sides of the first guide rod (202) and the second guide rod (203) are sleeved with a fixing plate (204) arranged outside the bottom end of the top rod (19), and the bottom end, outside the second sealing cover (17), of which the screw rod (201) extends out, is sleeved with a motor (205) arranged below the second sealing cover (17) through a shaft sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223365639.9U CN219888822U (en) | 2022-12-15 | 2022-12-15 | Overvoltage cutting device for urban village surge tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223365639.9U CN219888822U (en) | 2022-12-15 | 2022-12-15 | Overvoltage cutting device for urban village surge tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219888822U true CN219888822U (en) | 2023-10-24 |
Family
ID=88399948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223365639.9U Active CN219888822U (en) | 2022-12-15 | 2022-12-15 | Overvoltage cutting device for urban village surge tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219888822U (en) |
-
2022
- 2022-12-15 CN CN202223365639.9U patent/CN219888822U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |