CN210178941U - Gas regulator suitable for low pressure gas pipe network - Google Patents
Gas regulator suitable for low pressure gas pipe network Download PDFInfo
- Publication number
- CN210178941U CN210178941U CN201920844903.6U CN201920844903U CN210178941U CN 210178941 U CN210178941 U CN 210178941U CN 201920844903 U CN201920844903 U CN 201920844903U CN 210178941 U CN210178941 U CN 210178941U
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- valve body
- knob
- valve
- thread
- gas
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- 238000007789 sealing Methods 0.000 claims description 35
- 239000000463 material Substances 0.000 claims description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000008093 supporting effect Effects 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a gas regulator suitable for a low-pressure gas pipe network, which belongs to the field of gas regulators and comprises a valve body, wherein a support ring is arranged inside the valve body, the upper end of the valve body is connected with a valve cover through a thread, a thread cylinder is arranged in the middle of the valve cover, a thread knob is connected in the thread cylinder through a thread, a flow passage is arranged in the thread knob, the upper part of the thread knob is provided with a pressure relief hole, the thread knob is adopted to drive a valve rod and an end cap to seal the inside of the valve body, thereby realizing the cut-off of the gas, in addition, a flow passage, a discharge hole and a pressure relief hole are arranged in the threaded knob, and a spring is adopted to press the piston tightly, when the pressure in the valve body is suddenly increased, gas can enter the flow passage through the discharge hole, then the piston is pushed upwards and flows out of the pressure relief hole, so that pressure relief is realized, and the safety of a pipeline is ensured.
Description
Technical Field
The utility model relates to a gas regulator field, concretely relates to gas regulator suitable for low pressure gas pipe network.
Background
The gas regulator is widely applied to a gas pipe network, and the gas regulator is installed at each node. The general gas regulator basically has the function of intercepting, and in a low-pressure gas pipe network, the gas regulator is mainly used for opening and closing gas.
The gas regulator that uses in present low pressure gas pipe network is mostly through screw rod regulation, but only has the function of damming basically, lacks corresponding pressure protection function, because the pipeline that the low pressure pipe network adopted is less than high-pressure line far away in the standard that adopts when the design, so in case when pressure increases suddenly in the pipeline, the gas regulator is in the state of damming moreover, leads to the too big pipeline damage that leads to of low pressure pipeline pressure easily. Accordingly, there is a need for improvements in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a gas regulator suitable for low pressure gas pipe network, it adopts the screw knob to drive valve rod and end cap and seals valve body inside, realizes ending of gas, and facility runner, discharge orifice and pressure release hole in the screw knob moreover to adopt the spring to compress tightly the piston, when valve body internal pressure increases suddenly, gaseous accessible discharge orifice gets into the runner, then upwards promotes the piston, flows from the pressure release hole again, realizes the pressure release, has guaranteed the safety of pipeline.
For reaching above-mentioned purpose, the utility model provides an in an embodiment provides a gas regulator suitable for low pressure gas pipe network, which comprises a valve body, the inside of valve body is provided with the support ring, there is the valve gap upper end of valve body through threaded connection, the middle part of valve gap is provided with a screw thread section of thick bamboo, there is the screw thread knob through threaded connection in the screw thread section of thick bamboo, be provided with the runner in the screw thread knob, the upper portion of screw thread knob is provided with the pressure release hole, pressure release hole and runner intercommunication, the lower extreme of screw thread knob is provided with the valve rod, the lower extreme of valve rod is provided with the end cap, sliding sleeve has the piston in the runner, the lower. It adopts the screw thread knob to drive valve rod and end cap and seals valve body inside, realizes ending of gas, facility runner, discharge orifice and pressure release hole in the screw thread knob moreover to adopt the spring to compress tightly the piston, when valve body internal pressure increases suddenly, gaseous accessible discharge orifice gets into the runner, then upwards promotes the piston, flows from the pressure release hole again, realizes the pressure release, has guaranteed the safety of pipeline.
Furthermore, the left end of valve body is provided with the intake pipe, the left end of intake pipe is provided with first flange, the lower extreme of valve body is provided with the second flange, the design of first flange and second flange for be connected with the pipeline.
Furthermore, a first sealing ring is sleeved in the valve cover, the lower end of the first sealing ring is tightly attached to the upper end of the valve body, the first sealing ring is made of rubber materials, and the first sealing ring seals between the valve cover and the valve body.
Furthermore, the bottom of the threaded knob is provided with a drainage hole, an inner convex ring is arranged in the flow channel, a through groove is formed in the center of the inner convex ring, and the inner convex ring has a supporting effect on the piston.
Furthermore, the center department of support ring is provided with the circulation mouth, the lower extreme and the support ring of end cap hug closely, and the end cap seals the circulation mouth of support ring, and the circulation mouth has the circulation effect, can be so that the gas passes through.
Furthermore, the lower end of the piston is in contact connection with a spring, the lower end of the spring is in contact connection with a sealing plug, the sealing plug is in threaded connection with the threaded knob, and the spring is in a compressed state and has the function of compression elasticity, so that the piston compresses the inner convex ring.
Furthermore, a second sealing ring is sleeved on the outer side of the threaded knob, the lower end of the second sealing ring is tightly attached to the upper end of the valve cover, and the second sealing ring is made of rubber and seals the valve cover and the threaded knob.
To sum up, the utility model has the advantages of it is following:
1. this scheme adopts the screw thread knob to drive valve rod and end cap and seals valve body inside, realizes ending of gas, facility runner, discharge orifice and pressure release hole in the screw thread knob moreover to adopt spring to compress tightly the piston, when valve body internal pressure increases suddenly, gaseous accessible discharge orifice gets into the runner, then upwards promotes the piston, flows from the pressure release hole again, realizes the pressure release, has guaranteed the safety of pipeline.
2. The left end of the valve body is provided with an air inlet pipe, the left end of the air inlet pipe is provided with a first flange, the lower end of the valve body is provided with a second flange, and the first flange and the second flange are designed to be connected with a pipeline.
3. The valve cover is internally sleeved with a first sealing ring, the lower end of the first sealing ring is tightly attached to the upper end of the valve body, the first sealing ring is made of rubber materials, and the first sealing ring seals between the valve cover and the valve body.
4. The bottom of the threaded knob is provided with a discharge hole, an inner convex ring is arranged in the flow passage, a through groove is formed in the center of the inner convex ring, and the inner convex ring has a supporting effect on the piston.
5. The center department of support ring is provided with the circulation mouth, and the lower extreme and the support ring of end cap are hugged closely, and the end cap seals the circulation mouth of support ring, and the circulation mouth has the circulation effect, can be so that the gas passes through.
6. The lower extreme contact of piston is connected with the spring, and the lower extreme contact of spring is connected with the sealing plug, and the sealing plug passes through threaded connection with the screw knob, and the spring is compression state, has the effect of compression elasticity for the piston compresses tightly interior convex ring.
7. The outer side of the threaded knob is sleeved with a second sealing ring, the lower end of the second sealing ring is tightly attached to the upper end of the valve cover, and the second sealing ring is made of rubber and seals the valve cover and the threaded knob.
Drawings
FIG. 1 is a schematic view of an embodiment of the present invention;
fig. 2 is a top view of the overall structure in an embodiment of the present invention;
fig. 3 is an enlarged view of a point a in an embodiment of the present invention.
Wherein, 1, a valve body; 2. an air inlet pipe; 3. a first flange; 4. a second flange; 5. a support ring; 6. a flow port; 7. a valve cover; 8. a threaded barrel; 9. a first seal ring; 10. a threaded knob; 11. a flow channel; 12. a vent hole; 13. an inner collar; 14. a through groove; 15. a pressure relief vent; 16. a valve stem; 17. a plug; 18. a piston; 19. a spring; 20. a sealing plug; 21. and a second seal ring.
Detailed Description
Example 1:
referring to fig. 1-3, a gas regulator suitable for a low-pressure gas pipe network comprises a valve body 1, referring to fig. 1-3, a support ring 5 is arranged inside the valve body 1, the upper end of the valve body 1 is connected with a valve cover 7 through threads, the valve cover 7 seals the valve body 1, a threaded cylinder 8 is arranged in the middle of the valve cover 7, a threaded knob 10 is connected in the threaded cylinder 8 through threads, the threaded knob 10 and the threaded cylinder 8 can perform threaded motion to generate relative displacement, a flow passage 11 is arranged in the threaded knob 10, a pressure relief hole 15 is arranged on the upper portion of the threaded knob 10, the pressure relief hole 15 is communicated with the flow passage 11, a valve rod 16 is arranged at the lower end of the threaded knob 10, a plug 17 is arranged at the lower end of the valve rod 16, a piston 18 is sleeved in the flow passage.
Referring to fig. 1, an air inlet pipe 2 is disposed at the left end of a valve body 1, a first flange 3 is disposed at the left end of the air inlet pipe 2, a second flange 4 is disposed at the lower end of the valve body 1, and the first flange 3 and the second flange 4 are designed to be connected to a pipeline. The center department of support ring 5 is provided with circulation mouth 6, and the lower extreme of end cap 17 is hugged closely with support ring 5, and end cap 17 seals circulation mouth 6 of support ring 5, and circulation mouth 6 has the circulation effect, can be so that the gas passes through.
Referring to fig. 3, a first sealing ring 9 is sleeved in the valve cover 7, the lower end of the first sealing ring 9 is tightly attached to the upper end of the valve body 1, the first sealing ring 9 is made of rubber material, and the first sealing ring 9 seals between the valve cover 7 and the valve body 1. The bottom of the threaded knob 10 is provided with a discharge hole 12, an inner annular ring 13 is arranged in the flow passage 11, a through groove 14 is arranged at the center of the inner annular ring 13, and the inner annular ring 13 has a supporting function on a piston 18.
Referring to fig. 3, a spring 19 is connected to the lower end of the piston 18 in a contacting manner, a sealing plug 20 is connected to the lower end of the spring 19 in a contacting manner, the sealing plug 20 is connected to the threaded knob 10 through threads, and the spring 19 is in a compressed state and has a compression elastic force, so that the piston 18 presses the inner collar 13. The outer side of the threaded knob 10 is sleeved with a second sealing ring 21, the lower end of the second sealing ring 21 is tightly attached to the upper end of the valve cover 7, and the second sealing ring 21 is made of rubber and seals the valve cover 7 and the threaded knob 10.
When the circulation port 6 in the support ring 5 needs to be sealed, the threaded knob 10 is rotated, the threaded knob 10 and the threaded cylinder 8 generate threaded motion to generate relative displacement, so that the threaded knob 10 and the threaded cylinder 8 generate threaded motion to generate relative displacement, the threaded knob 10 moves downwards, the threaded knob 10 drives the valve rod 16 to move downwards, the valve rod 16 drives the plug 17 to move downwards, the circulation port 6 in the support ring 5 is sealed, and the shutoff can be realized; when the pressure in the valve body 1 is increased and overpressure is generated, the pressure in the flow channel 11 is increased, the piston 18 is pushed upwards, the piston 18 compresses the spring 19, and when the piston 18 crosses the pressure relief hole 15, gas can be released through the pressure relief hole 15, so that pressure relief is realized, and the pipeline damage caused by overlarge pressure is avoided.
While the present invention has been described in detail and with reference to the accompanying drawings, it is not to be considered as limited to the scope of the invention. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the appended claims.
Claims (7)
1. The utility model provides a gas regulator suitable for low pressure gas pipe network, includes valve body (1), its characterized in that: the improved valve is characterized in that a support ring (5) is arranged inside the valve body (1), the upper end of the valve body (1) is connected with a valve cover (7) through threads, a thread cylinder (8) is arranged in the middle of the valve cover (7), a thread knob (10) is connected in the thread cylinder (8) through threads, a flow channel (11) is arranged in the thread knob (10), a pressure relief hole (15) is formed in the upper portion of the thread knob (10), the pressure relief hole (15) is communicated with the flow channel (11), a valve rod (16) is arranged at the lower end of the thread knob (10), a plug (17) is arranged at the lower end of the valve rod (16), a piston (18) is sleeved in the flow channel (11) in a sliding mode, and an inner convex ring (13.
2. A gas regulator for use in low pressure gas network as claimed in claim 1 wherein: the left end of valve body (1) is provided with intake pipe (2), the left end of intake pipe (2) is provided with first flange (3), the lower extreme of valve body (1) is provided with second flange (4).
3. A gas regulator for use in low pressure gas network as claimed in claim 1 wherein: a first sealing ring (9) is sleeved in the valve cover (7), the lower end of the first sealing ring (9) is tightly attached to the upper end of the valve body (1), and the first sealing ring (9) is made of a rubber material.
4. A gas regulator for use in low pressure gas network as claimed in claim 1 wherein: the bottom of the threaded knob (10) is provided with a drainage hole (12), an inner convex ring (13) is arranged in the flow channel (11), and a through groove (14) is arranged at the center of the inner convex ring (13).
5. A gas regulator for use in low pressure gas network as claimed in claim 1 wherein: the center of the support ring (5) is provided with a circulating port (6), and the lower end of the plug (17) is tightly attached to the support ring (5).
6. A gas regulator for use in low pressure gas network as claimed in claim 1 wherein: the lower end of the piston (18) is connected with a spring (19) in a contact mode, the lower end of the spring (19) is connected with a sealing plug (20) in a contact mode, and the sealing plug (20) is connected with the threaded knob (10) through threads.
7. A gas regulator for use in low pressure gas network as claimed in claim 1 wherein: and a second sealing ring (21) is sleeved on the outer side of the threaded knob (10), and the lower end of the second sealing ring (21) is tightly attached to the upper end of the valve cover (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920844903.6U CN210178941U (en) | 2019-06-06 | 2019-06-06 | Gas regulator suitable for low pressure gas pipe network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920844903.6U CN210178941U (en) | 2019-06-06 | 2019-06-06 | Gas regulator suitable for low pressure gas pipe network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210178941U true CN210178941U (en) | 2020-03-24 |
Family
ID=69836520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920844903.6U Expired - Fee Related CN210178941U (en) | 2019-06-06 | 2019-06-06 | Gas regulator suitable for low pressure gas pipe network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210178941U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145738A (en) * | 2020-10-13 | 2020-12-29 | 祁东中燃城市燃气发展有限公司 | Novel flow valve for gas delivery |
| CN112855964A (en) * | 2021-01-04 | 2021-05-28 | 山东安益矿用设备股份有限公司 | Coal mine working face gas extraction pressure limiting valve |
-
2019
- 2019-06-06 CN CN201920844903.6U patent/CN210178941U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145738A (en) * | 2020-10-13 | 2020-12-29 | 祁东中燃城市燃气发展有限公司 | Novel flow valve for gas delivery |
| CN112855964A (en) * | 2021-01-04 | 2021-05-28 | 山东安益矿用设备股份有限公司 | Coal mine working face gas extraction pressure limiting valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200324 |