CN216382639U - Pipeline pressure relief valve for safety production of urban gas - Google Patents
Pipeline pressure relief valve for safety production of urban gas Download PDFInfo
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- CN216382639U CN216382639U CN202123130455.XU CN202123130455U CN216382639U CN 216382639 U CN216382639 U CN 216382639U CN 202123130455 U CN202123130455 U CN 202123130455U CN 216382639 U CN216382639 U CN 216382639U
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Abstract
The utility model discloses a pipeline pressure-reducing safety valve for urban gas safety production, which comprises a valve body, wherein the left side and the right side of the valve body are respectively fixedly communicated with an air inlet pipe and an air outlet pipe, the same rectangular plate is fixedly connected between the inner wall of the top part and the inner wall of the bottom part of the valve body, the front side and the rear side of the rectangular plate are respectively fixedly connected with the inner wall of the front side and the inner wall of the rear side of the valve body, the left side of the rectangular plate is provided with an air supply channel, the top part and the bottom part of the rectangular plate are provided with the same movable through hole which is in cross communication with the air supply channel, the right end of the air inlet pipe is in sealed movable contact with a first blocking plate positioned in the valve body, and the inner wall of the left side of the valve body is provided with a sliding groove. The double-layer blocking device is convenient for double-layer blocking of the fuel gas during conveying after use, improves the blocking stability, effectively reduces the occurrence of fuel gas leakage after the valve is closed, guarantees the use safety of people, and meets the use requirements.
Description
Technical Field
The utility model relates to the technical field of pressure relief valves, in particular to a pipeline pressure relief valve for safety production of urban gas.
Background
Need use the relief pressure valve in city gas safety in-process, the relief pressure valve is the important device of protection gas pipeline and gas equipment, and the shutoff is stabilized to the gas among the transport after the use not convenient for to the relief pressure valve on the present market, has the risk that the gas was revealed after the closed valve to endanger personnel's safety in utilization, based on above problem, we have provided a pipeline relief pressure valve for city gas safety in-process.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art, and provides a pipeline pressure relief valve for urban gas safety production.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a pipeline pressure-reducing safety valve for the safe production of city gas comprises a valve body, wherein the left side and the right side of the valve body are respectively fixed and communicated with a gas inlet pipe and a gas outlet pipe, the same rectangular plate is fixedly connected between the inner wall of the top part and the inner wall of the bottom part of the valve body, the front side and the rear side of the rectangular plate are respectively fixedly connected with the inner wall of the front side and the inner wall of the rear side of the valve body, a gas supply channel is arranged on the left side of the rectangular plate, the top part and the bottom part of the rectangular plate are provided with the same movable through hole which is in cross communication with the gas supply channel, the right end of the gas inlet pipe is in sealed movable contact with a first barrier plate positioned in the valve body, a chute is arranged on the inner wall of the left side of the valve body, the same guide rod is fixedly connected between the inner wall of the top part and the inner wall of the bottom wall of the chute, a slide block is slidably arranged on the outer side of the guide rod, and the right side of the slide block is fixedly connected with the left side of the first barrier plate, a spring sleeved outside the guide rod is fixedly connected between the top of the sliding block and the inner wall of the top of the sliding groove, a first through hole is formed in the inner wall of the left side of the movable through hole, the inner wall of the left side of the valve body and the first through hole are rotatably connected with a first rotating shaft, the right end of the first rotating shaft extends into the movable through hole and is fixedly connected with a first bevel gear, two circular plates are fixedly sleeved on the first rotating shaft, a winding shaft sleeved outside the first rotating shaft is fixedly connected between the two circular plates, a pull rope is fixedly connected to the bottom of the winding shaft, the bottom end of the pull rope is fixedly connected with the top of the first barrier plate, a second through hole is formed in the inner wall of the top of the valve body, a second rotating shaft is sleeved in the second through hole, the top end and the bottom end of the second rotating shaft respectively extend into the upper part of the valve body and the movable through hole, and a second bevel gear is fixedly sleeved outside the second rotating shaft, and the second bevel gear is meshed with the first bevel gear, the top end and the bottom end of the second rotating shaft are respectively and fixedly connected with a knob and a screw rod, the bottom end of the screw rod is rotatably installed on the inner wall of the bottom of the valve body, a second blocking plate is sleeved on the outer side of the screw rod in a threaded manner, and the second blocking plate is in sealing sliding connection with the movable through hole.
Preferably, the top of the sliding block is provided with a third through hole which is slidably sleeved with the guide rod.
Preferably, a first bearing is fixedly connected to the inner wall of the left side of the valve body, and the inner side of an inner ring of the first bearing is fixedly connected to the outer side of the first rotating shaft.
Preferably, a second bearing is fixedly sleeved in the first through hole, and the inner side of an inner ring of the second bearing is fixedly connected with the outer side of the first rotating shaft.
Preferably, an installation groove is formed in the inner wall of the bottom of the valve body, a third bearing is fixedly connected in the installation groove, and the inner side of an inner ring of the third bearing is fixedly connected with the outer side of the screw rod.
Preferably, a sealing bearing is fixedly sleeved in the second through hole, and the inner side of an inner ring of the sealing bearing is fixedly connected with the outer side of the second rotating shaft.
Preferably, a limiting groove is formed in the inner wall of the left side of the movable through hole, a limiting block is connected in the limiting groove in a sliding mode, and the right side of the limiting block is fixedly connected with the left side of the second blocking plate.
Preferably, the left sides of the first blocking plate and the second blocking plate are fixedly connected with anti-skid sealing rubber plates, the anti-skid sealing rubber plates on the first blocking plate are in movable contact with the right end of the air inlet pipe and the inner wall of the left side of the valve body, the anti-skid sealing rubber plates on the second blocking plate are in movable contact with the inner wall of the left side of the movable through hole, and the bottom of the second blocking plate is in contact with the inner wall of the bottom of the valve body.
Preferably, the top of the second blocking plate is provided with a threaded through hole in threaded connection with the screw.
Compared with the prior art, the utility model has the beneficial effects that:
the double-layer blocking device is convenient for double-layer blocking of the fuel gas during conveying after use, improves the blocking stability, effectively reduces the occurrence of fuel gas leakage after the valve is closed, guarantees the use safety of people, and meets the use requirements.
Drawings
FIG. 1 is a schematic structural diagram of a pipeline pressure relief valve for the safe production of city gas according to the present invention;
FIG. 2 is a schematic sectional view of a pipeline relief valve for the safe production of city gas according to the present invention;
fig. 3 is an enlarged schematic view of a-a in fig. 2.
In the figure: 1. a valve body; 2. a rectangular plate; 3. a first bevel gear; 4. a movable through hole; 5. a knob; 6. a spool; 7. a second rotating shaft; 8. a screw; 9. a second bevel gear; 10. a second barrier plate; 11. a first barrier plate; 12. a chute; 13. a slider; 14. a spring; 15. a guide bar; 16. pulling a rope; 17. a first rotating shaft; 18. an air supply channel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-3, a pipeline pressure relief valve for urban gas safety production comprises a valve body 1, wherein the left side and the right side of the valve body 1 are respectively fixed and communicated with an air inlet pipe and an air outlet pipe, the same rectangular plate 2 is fixedly connected between the top inner wall and the bottom inner wall of the valve body 1, the front side and the rear side of the rectangular plate 2 are respectively fixedly connected with the front inner wall and the rear inner wall of the valve body 1, the left side of the rectangular plate 2 is provided with an air supply channel 18, the top and the bottom of the rectangular plate 2 are provided with the same movable through hole 4 which is in cross communication with the air supply channel 18, the right end of the air inlet pipe is in sealed movable contact with a first baffle plate 11 positioned in the valve body 1, the left inner wall of the valve body 1 is provided with a chute 12, the same guide rod 15 is fixedly connected between the top inner wall and the bottom inner wall of the chute 12, and a slide block 13 which is slidably mounted in the chute 12 is sleeved outside the guide rod 15, the right side of the sliding block 13 is fixedly connected with the left side of the first stop plate 11, the same spring 14 sleeved outside the guide rod 15 is fixedly connected between the top of the sliding block 13 and the inner wall of the top of the sliding groove 12, the left inner wall of the movable through hole 4 is provided with a first perforation, the left inner wall of the valve body 1 and the first perforation are rotatably connected with the same first rotating shaft 17, the right end of the first rotating shaft 17 extends into the movable through hole 4 and is fixedly connected with the first bevel gear 3, the first rotating shaft 17 is fixedly sleeved with two circular plates, the same winding shaft 6 sleeved outside the first rotating shaft 17 is fixedly connected between the two circular plates, the bottom of the winding shaft 6 is fixedly connected with a pull rope 16, the bottom end of the pull rope 16 is fixedly connected with the top of the first stop plate 11, the inner wall of the top of the valve body 1 is provided with a second perforation, the second rotating shaft 7 is rotatably sleeved in the second perforation, and the top end and the bottom end of the second rotating shaft 7 respectively extend to the upper part of the valve body 1 and the movable through hole 4, the outer side of the second rotating shaft 7 is fixedly sleeved with a second bevel gear 9, the second bevel gear 9 is meshed with the first bevel gear 3, the top end and the bottom end of the second rotating shaft 7 are fixedly connected with a knob 5 and a screw 8 respectively, the bottom end of the screw 8 is rotatably installed on the inner wall of the bottom of the valve body 1, the outer side of the screw 8 is sleeved with a second barrier plate 10 in a threaded manner, and the second barrier plate 10 is in sealed sliding connection with the movable through hole 4.
In the utility model, the top of the sliding block 13 is provided with a third perforation which is slidably sleeved with a guide rod 15, the inner wall of the left side of the valve body 1 is fixedly connected with a first bearing, the inner side of the inner ring of the first bearing is fixedly connected with the outer side of a first rotating shaft 17, the inner side of the inner ring of the first bearing is fixedly sleeved with a second bearing, the inner side of the inner ring of the second bearing is fixedly connected with the outer side of the first rotating shaft 17, the inner wall of the bottom of the valve body 1 is provided with a mounting groove, the inner side of the inner ring of the third bearing is fixedly connected with the outer side of a screw 8, the inner side of the second perforation is fixedly sleeved with a sealing bearing, the inner side of the inner ring of the sealing bearing is fixedly connected with the outer side of a second rotating shaft 7, the inner wall of the left side of a movable through hole 4 is provided with a limiting groove, the limiting block is slidably connected with a limiting block, the right side of the limiting block is fixedly connected with the left side of a second blocking plate 10, and the left sides of the first blocking plate 11 and the second blocking plate 10 are both fixedly connected with anti-skid sealing rubber plates, the anti-skid sealing rubber plate on the first blocking plate 11 is in movable contact with the right end of the air inlet pipe and the inner wall of the left side of the valve body 1, the anti-skid sealing rubber plate on the second blocking plate 10 is in movable contact with the inner wall of the left side of the movable through hole 4, the bottom of the second blocking plate 10 is in contact with the inner wall of the bottom of the valve body 1, and the top of the second blocking plate 10 is provided with the threaded through hole in threaded connection with the screw rod 8.
The working principle is as follows: when natural gas is needed, firstly, the knob 5 is rotated in a forward direction, the knob 5 drives the second rotating shaft 7 to rotate in the forward direction, the second rotating shaft 7 simultaneously drives the screw rod 8 and the second bevel gear 9 to rotate in the forward direction, under the action of a threaded through hole formed in the second barrier plate 10, the screw rod 8 rotates to drive the second barrier plate 10 to move upwards, the second barrier plate 10 drives the limiting block to move upwards in the limiting groove, meanwhile, the second bevel gear 9 drives the first bevel gear 3 meshed with the second barrier plate to rotate, the first bevel gear 3 drives the first rotating shaft 17 to rotate in the forward direction, the first rotating shaft 17 drives the winding shaft 6 to wind the pulling rope 16, one end of the pulling rope 16 drives the first barrier plate 11 to move upwards, the first barrier plate 11 drives the sliding block 13 to move upwards along the guide rod 15, the sliding block 13 compresses the spring 14 upwards, the first barrier plate 11 moves upwards and simultaneously removes the blockage of the air inlet pipe, the second baffle plate 10 moves upwards and simultaneously gradually removes the blockage of the air feed channel 18, and at the moment, the fuel gas enters the valve body 1 through the air inlet pipe and passes through the air feed channel 18 to be discharged through the air outlet pipe;
when the gas is used, the knob 5 is rotated reversely, which is the same as the movement process of the knob 5 rotated forwardly, so that the second barrier plate 10 moves downwards to block the gas supply channel 18, meanwhile, the first rotating shaft 17 drives the winding shaft 6 to rotate reversely to release the pull rope 16, at the same time, the pull rope 16 loses the pulling force of the first barrier plate 11, the spring 14 in a compressed state starts to recover, the elastic force when the spring 14 recovers drives the sliding block 13 to move downwards along the guide rod 15, the sliding block 13 drives the first barrier plate 11 to move downwards, when the sliding block 13 moves to contact with the bottom inner wall of the sliding groove 12, the first barrier plate 11 blocks the gas inlet pipe, and the safety valve is convenient for double-layer blocking of the gas in conveying after the use is finished, so that the blocking stability is improved, the occurrence of the gas leakage condition after the valve is closed is effectively reduced, the use safety of personnel is guaranteed.
In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (9)
1. A pipeline pressure-reducing safety valve for urban gas safety production comprises a valve body (1), wherein the left side and the right side of the valve body (1) are respectively fixedly communicated with an air inlet pipe and an air outlet pipe, and is characterized in that a same rectangular plate (2) is fixedly connected between the inner wall of the top part and the inner wall of the bottom part of the valve body (1), the front side and the rear side of the rectangular plate (2) are respectively fixedly connected with the inner wall of the front side and the inner wall of the rear side of the valve body (1), an air supply channel (18) is arranged at the left side of the rectangular plate (2), a same movable through hole (4) which is in cross communication with the air supply channel (18) is arranged at the top part and the bottom part of the rectangular plate (2), a first blocking plate (11) which is positioned in the valve body (1) is in sealing movable contact with the right end of the air inlet pipe, a sliding groove (12) is arranged on the inner wall of the left side of the valve body (1), and a same guide rod (15) is fixedly connected between the inner wall of the top part and the inner wall of the bottom wall of the sliding groove (12), the outside slip cap of guide arm (15) is equipped with slider (13) of a slidable mounting in spout (12), the right side of slider (13) and the left side fixed connection of first barrier plate (11), fixedly connected with is the same cover to be established spring (14) in the guide arm (15) outside between the top of slider (13) and the top inner wall of spout (12), seted up first perforation on the left side inner wall of activity through-hole (4), rotate on the left side inner wall of valve body (1) and the first perforation and be connected with same first pivot (17), the right-hand member of first pivot (17) extends to in the activity through-hole (4) and fixedly connected with first bevel gear (3), and the fixed cover is equipped with two plectanes on first pivot (17), and fixedly connected with is established spool (6) in the first pivot (17) outside between two plectanes, and the bottom fixedly connected with stay cord (16) of spool (6), the bottom of stay cord (16) and the top fixed connection of first barrier plate (11), it is fenestrated to have seted up the second on the top inner wall of valve body (1), and the perforation internal rotation cover of second is equipped with second pivot (7), and the top and the bottom of second pivot (7) extend to in top and the activity through-hole (4) of valve body (1) respectively, and the fixed cover in second pivot (7) outside is equipped with second bevel gear (9), and second bevel gear (9) mesh mutually with first bevel gear (3), the top and the bottom of second pivot (7) are fixedly connected with knob (5) and screw rod (8) respectively, and the bottom of screw rod (8) is rotated and is installed on the bottom inner wall of valve body (1), the outside screw thread cover of screw rod (8) is equipped with second barrier plate (10), second barrier plate (10) and activity through-hole (4) sealing sliding connection.
2. The pipeline pressure relief valve for the safe production of city gas as set forth in claim 1, wherein the top of the slider (13) is provided with a third through hole slidably fitted with the guide rod (15).
3. The pipeline pressure relief valve for the safe production of city gas according to claim 1, characterized in that, the first bearing is fixedly connected to the left inner wall of the valve body (1), and the inner side of the inner ring of the first bearing is fixedly connected with the outer side of the first rotating shaft (17).
4. The pipeline pressure relief valve for the safe production of city gas as set forth in claim 1, wherein a second bearing is fixedly sleeved in the first through hole, and the inner side of the inner ring of the second bearing is fixedly connected with the outer side of the first rotating shaft (17).
5. The pipeline pressure relief valve for the safety production of urban gas according to claim 1, characterized in that, the bottom inner wall of the valve body (1) is provided with an installation groove, a third bearing is fixedly connected in the installation groove, and the inner side of the inner ring of the third bearing is fixedly connected with the outer side of the screw rod (8).
6. The pipeline pressure relief valve for the safe production of city gas according to claim 1, characterized in that the inside of the second perforation is fixedly sleeved with a sealing bearing, and the inner side of the inner ring of the sealing bearing is fixedly connected with the outer side of the second rotating shaft (7).
7. The pipeline pressure relief valve for the safe production of city gas as claimed in claim 1, wherein the inner wall of the left side of the movable through hole (4) is provided with a limiting groove, a limiting block is slidably connected in the limiting groove, and the right side of the limiting block is fixedly connected with the left side of the second blocking plate (10).
8. The pipeline pressure reduction safety valve for the safe production of the urban gas according to claim 1, characterized in that the left sides of the first blocking plate (11) and the second blocking plate (10) are fixedly connected with an anti-skid sealing rubber plate, the anti-skid sealing rubber plate on the first blocking plate (11) is in movable contact with the right end of the air inlet pipe and the left inner wall of the valve body (1), the anti-skid sealing rubber plate on the second blocking plate (10) is in movable contact with the left inner wall of the movable through hole (4), and the bottom of the second blocking plate (10) is in contact with the bottom inner wall of the valve body (1).
9. The pipeline pressure relief valve for the safe production of city gas according to claim 1, characterized in that the top of the second barrier plate (10) is provided with a threaded through hole in threaded connection with the screw (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123130455.XU CN216382639U (en) | 2021-12-14 | 2021-12-14 | Pipeline pressure relief valve for safety production of urban gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123130455.XU CN216382639U (en) | 2021-12-14 | 2021-12-14 | Pipeline pressure relief valve for safety production of urban gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216382639U true CN216382639U (en) | 2022-04-26 |
Family
ID=81223268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123130455.XU Active CN216382639U (en) | 2021-12-14 | 2021-12-14 | Pipeline pressure relief valve for safety production of urban gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216382639U (en) |
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2021
- 2021-12-14 CN CN202123130455.XU patent/CN216382639U/en active Active
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