CN219655272U - Shut-off valve that leakproofness is good - Google Patents
Shut-off valve that leakproofness is good Download PDFInfo
- Publication number
- CN219655272U CN219655272U CN202320537309.9U CN202320537309U CN219655272U CN 219655272 U CN219655272 U CN 219655272U CN 202320537309 U CN202320537309 U CN 202320537309U CN 219655272 U CN219655272 U CN 219655272U
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- Prior art keywords
- connecting pipe
- fixedly connected
- valve
- valve body
- shut
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- 238000007789 sealing Methods 0.000 claims abstract description 43
- 239000007787 solid Substances 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 abstract description 8
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 230000009471 action Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The utility model provides a shut-off valve with good sealing performance, which relates to the technical field of shut-off valves and comprises: the connecting pipe, the surface fixedly connected with valve body of connecting pipe, the surface fixedly connected with runner pipe of connecting pipe, two filling openings have been seted up to the internal surface of connecting pipe, the internal surface fixedly connected with of connecting pipe a plurality of rubber circles, the both sides surface fixedly connected with of connecting pipe a plurality of screw thread boards. According to the utility model, the friction force and the tightness of the external connecting pipe and the connecting pipe are increased by the rubber ring, the fixing ring is rotated, so that the fixing ring moves on the threaded plate, the threaded plate is contracted until the rubber block is firmly attached to the external connecting pipe, the external connecting pipe is fixed, the external connecting pipe is not easy to loosen, the guide rod is pressed, the first sliding block slides in the valve body, the two blocking blocks move in the connecting pipe through the rotating shaft until the sealing rings on the blocking blocks enter the sealing groove, the integral tightness is increased, and the quick blocking is realized.
Description
Technical Field
The utility model relates to the technical field of shut-off valves, in particular to a shut-off valve with good sealing performance.
Background
The cut-off valve is one of executing mechanisms in automatic system and consists of multiple spring pneumatic film executing mechanism, floating piston executing mechanism and regulating valve, and is used to receive the signal from regulating instrument and control the cut-off, cut-on or cut-over of fluid in technological pipeline. The device has the characteristics of simple structure, sensitive response, reliable action and the like, is widely applied to production and life, and can be used for cutting off coal gas, combustion air, cold air, flue gas and the like.
As disclosed in chinese patent, CN212178022U includes a valve body and a valve cover, the valve cover is mounted at the upper end of the valve body, and a first sealing member and a second sealing member are disposed in an inner cavity of the valve body, when the valve is closed, a valve flap can be inserted between the first sealing member and the second sealing member, so that the tightness of the inner cavity of the valve body is better; the inner cavity of the valve body is provided with the groove, the valve rod penetrates through the inner cavity of the extrusion piece, the lower end of the valve rod is provided with the valve clack, when the shut-off valve is closed, the lower end of the valve clack is arranged in the inner cavity of the groove, and the extrusion piece is in sealing connection with the upper ends of the first sealing piece and the second sealing piece, so that the overall sealing performance is better; through being provided with rotating device in telescopic upper end, rotating device is provided with the gear, and the tooth looks adaptation of gear and valve rod upper end rotates the hand wheel and can carry out the upper and lower regulation to the valve rod, has promoted the convenience of hand wheel.
The above scheme has the advantages but the disadvantages that: the convenience of hand wheel is not high, when meetting emergency and need cutting off the pipeline, still need the manual work to shake constantly and cut off, can not in time quick transportation of cutting off gas or liquid, can produce and reveal, and trip valve and pipeline often are through threaded connection, use for a long time, can become flexible between pipeline and the trip valve, lead to leaking, the leakproofness is relatively poor, reduction in use safety.
Disclosure of Invention
The utility model aims to solve the problems that in the prior art, a hand wheel cannot timely and rapidly cut off the transportation of gas or liquid, leakage can occur, the hand wheel is used for a long time, a pipeline and a cut-off valve can be loosened, and the sealing performance is poor.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: a shut-off valve with good sealing properties comprising: the connecting pipe, the surface fixedly connected with valve body of connecting pipe, the surface fixedly connected with runner pipe of connecting pipe, two filling openings have been seted up to the internal surface of connecting pipe, the internal surface fixedly connected with of connecting pipe is a plurality of rubber rings, the both sides surface fixedly connected with of connecting pipe a plurality of screw thread boards, the surface rotation of screw thread board is connected with solid fixed ring, the internal surface fixedly connected with rubber piece of screw thread board, the internal surface fixedly connected with spring holder of valve body.
As a preferred implementation mode, the inner surface of the valve body is in sliding connection with the first sliding block, the outer surface of the first sliding block is rotationally connected with a pull rod, the outer surface of the pull rod is fixedly connected with a rotating shaft, and the outer surface of the rotating shaft is fixedly connected with a cutting block. The outer surface of the cutting block is in sliding connection with the inner surface of the connecting pipe, the sealing ring is fixedly connected with the outer surface of the cutting block, the sealing groove is formed in the inner surface of the connecting pipe, and the outer surface of the sealing ring is in sliding connection with the inner surface of the sealing groove.
The technical effect of adopting the further scheme is as follows: through pressing the guide arm, under the effect of pull rod, make the shutoff piece cut off the circulation of connecting pipe fast, the sealing washer on the shutoff piece meshes with the seal groove in the connecting pipe, improves holistic leakproofness and cutting off the effect, is difficult for revealing.
As a preferable implementation mode, the outer surface of the first slider is fixedly connected with a guide rod, the outer surface of the guide rod is fixedly connected with a second slider, and the outer surface of the second slider is fixedly connected with a first spring.
The technical effect of adopting the further scheme is as follows: the first slider is fixedly connected with the guide rod and the second slider and moves in the valve body together, so that the movement of the pull rod and the cutting block is controlled, and the integral movement is controlled through the first spring.
As a preferable implementation mode, the outer surfaces of the two ends of the first spring are fixedly connected with the outer surface of the second slider and the outer surface of the spring seat respectively, and the outer surface of the second slider is in sliding connection with the inner surface of the valve body.
The technical effect of adopting the further scheme is as follows: the guide rod fixedly connected with the sliding block II and the sliding block I are driven to move in the valve body through the spring I.
As a preferred implementation mode, two sliding grooves are formed in the inner surface of the valve body, limiting blocks are connected to the inner surface of the sliding grooves in a sliding mode, a poking rod is fixedly connected to the outer surface of each limiting block, a second spring is fixedly connected to the outer surface of each limiting block, and the outer surfaces of the two ends of the second spring are fixedly connected with the outer surfaces of the limiting blocks and the inner surfaces of the sliding grooves respectively.
The technical effect of adopting the further scheme is as follows: the limiting block is moved by pulling the toggle rod, the limitation on the second sliding block is removed, the second sliding block can move under the action of the first spring, and the pull rod pulls the cutting block to remove the cutting of the connecting pipe due to the fixed connection of the guide rod, the first sliding block and the second sliding block.
Compared with the prior art, the utility model has the advantages and positive effects that,
1. according to the utility model, the external pipe is installed at two ends of the connecting pipe, the rubber ring in the connecting pipe increases the friction force and the tightness between the external connecting pipe and the connecting pipe, and then the fixing ring is rotated to enable the fixing ring to move on the outer surface of the threaded plate on the connecting pipe, so that the threaded plate is contracted until the rubber block on the threaded plate is firmly attached to the outer surface of the external connecting pipe, the external connecting pipe is fixed, so that the external connecting pipe is not easy to loosen, at the moment, gas flows into the flow pipe from the injection port at one end of the connecting pipe and flows out from the injection port at the other end of the connecting pipe through the flow pipe, the whole connecting pipe can be quickly connected, the possibility of loosening connection is low, and the tightness is improved.
2. When the first slider slides past the limiting block, the limiting block is pushed out under the action of the first spring, so that the second slider and the first slider cannot move upwards, the two blocking blocks can move in the connecting pipe through the rotating shaft, the blocking blocks slide from the injection port until the sealing ring on the blocking blocks enters the sealing groove, gas cannot pass through the connecting pipe any more, the overall sealing performance is improved, and the quick blocking can be realized after the blocking is finished.
Drawings
FIG. 1 is a front view of a shut-off valve with good sealing provided by the utility model;
FIG. 2 is a cross-sectional view of a shut-off valve with good sealing provided by the utility model;
FIG. 3 is an enlarged view of part A of the structure of the shut-off valve with good sealing performance provided by the utility model;
fig. 4 is an enlarged view of a portion B of a structure of a shut-off valve having excellent sealing performance according to the present utility model.
Legend description:
1. a connecting pipe; 2. a valve body; 3. a flow pipe; 4. a thread plate; 5. a rubber block; 6. a fixing ring; 7. a rubber ring; 8. an injection port; 9. a pull rod; 10. a rotating shaft; 11. cutting off the blocks; 12. a first sliding block; 13. a spring seat; 14. a first spring; 15. a second slide block; 16. a guide rod; 17. a limiting block; 18. a second spring; 19. a toggle rod; 20. a sliding groove; 21. a seal ring; 22. and (5) sealing the groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the present utility model provides a technical solution: a shut-off valve with good sealing properties comprising: connecting pipe 1, the surface fixedly connected with valve body 2 of connecting pipe 1, the surface fixedly connected with runner pipe 3 of connecting pipe 1, two filling openings 8 have been seted up to the internal surface of connecting pipe 1, the internal surface fixedly connected with a plurality of rubber rings 7 of connecting pipe 1, the both sides surface fixedly connected with a plurality of screw thread boards 4 of connecting pipe 1, the surface rotation of screw thread board 4 is connected with solid fixed ring 6, the internal surface fixedly connected with rubber piece 5 of screw thread board 4, the internal surface fixedly connected with spring holder 13 of valve body 2.
As shown in fig. 1-4, the inner surface of the valve body 2 is slidably connected with a first sliding block 12, the outer surface of the first sliding block 12 is rotatably connected with a pull rod 9, the outer surface of the pull rod 9 is fixedly connected with a rotating shaft 10, and the outer surface of the rotating shaft 10 is fixedly connected with a cutting block 11. The outer surface of the cutting block 11 is in sliding connection with the inner surface of the connecting pipe 1, the outer surface of the cutting block 11 is fixedly connected with a sealing ring 21, the inner surface of the connecting pipe 1 is provided with a sealing groove 22, and the outer surface of the sealing ring 21 is in sliding connection with the inner surface of the sealing groove 22. By pressing the guide rod 16, the cutting block 11 is made to rapidly cut off the circulation of the connecting pipe 1 under the action of the pull rod 9, the sealing ring 21 on the cutting block 11 is meshed with the sealing groove 22 in the connecting pipe 1, the overall sealing performance and the cutting effect are improved, and leakage is not easy to occur.
As shown in fig. 1-4, the outer surface of the first slider 12 is fixedly connected with a guide rod 16, the outer surface of the guide rod 16 is fixedly connected with a second slider 15, and the outer surface of the second slider 15 is fixedly connected with a first spring 14. The first slider 12 is fixedly connected with the guide rod 16 and the second slider 15 and moves inside the valve body 2 together, so that the movement of the pull rod 9 and the cutting block 11 is controlled, and the integral movement is controlled through the first spring 14.
As shown in fig. 1-4, the outer surfaces of the two ends of the first spring 14 are fixedly connected with the outer surface of the second slider 15 and the outer surface of the spring seat 13 respectively, and the outer surface of the second slider 15 is slidably connected with the inner surface of the valve body 2. The guide rod 16 fixedly connected with the slide block II 15 and the slide block I12 are driven to move in the valve body 2 by the spring I14.
As shown in fig. 1-4, two sliding grooves 20 are formed in the inner surface of the valve body 2, a limiting block 17 is slidably connected to the inner surface of the sliding groove 20, a toggle rod 19 is fixedly connected to the outer surface of the limiting block 17, a second spring 18 is fixedly connected to the outer surface of the limiting block 17, and the outer surfaces of two ends of the second spring 18 are fixedly connected with the outer surface of the limiting block 17 and the inner surface of the sliding groove 20 respectively. The limiting block 17 is moved by pulling the toggle rod 19, the limitation on the second slide block 15 is removed, the second slide block 15 can move under the action of the first spring 14, and the pull rod 9 pulls the cutting block 11 to remove the cutting of the connecting pipe 1 because the guide rod 16, the first slide block 12 and the second slide block 15 are fixedly connected.
Working principle: by installing the external pipe at two ends of the connecting pipe 1, the rubber ring 7 in the connecting pipe 1 increases the friction and tightness between the external connecting pipe and the connecting pipe 1, then the fixing ring 6 is rotated, the fixing ring 6 moves on the outer surface of the threaded plate 4 on the connecting pipe 1, the threaded plate 4 is contracted until the rubber block 5 on the threaded plate 4 is firmly attached to the outer surface of the external connecting pipe, the external connecting pipe is fixed and is not easy to loosen, at the moment, the gas flows into the runner pipe 3 from the injection port 8 at one end of the connecting pipe 1, flows out from the injection port 8 at the other end through the runner pipe 3, and after the whole connection is finished, when an emergency situation or maintenance is met, the cutting-off is needed, the guide rod 16 is pressed, the first slider 12 slides downwards in the valve body 2, and the two pull rods 9 move downwards, the second slider 15 extrudes the limiting block 17 to enable the limiting block 17 to slide in the sliding groove 20, when the second slider 15 slides over the limiting block 17, the limiting block 17 is pushed out under the action of the first spring 14 to limit the second slider 15 to move upwards, the guide rod 16 and the first slider 12 cannot move, the two cutting blocks 11 move in the connecting pipe 1 through the rotating shaft 10, the cutting blocks 11 slide over the injection opening 8 until the sealing ring 21 on the cutting blocks 11 enters the sealing groove 22, gas cannot pass through the connecting pipe 1, after cutting is finished, when cutting is not needed, the toggle rod 19 is pulled to enable the limiting block 17 to move, limiting is removed, the second slider 15 can move under the action of the first spring 14, the pull rod 9 pulls the cutting blocks 11, and gas can enter the flow pipe 3 through the injection opening 8.
The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.
Claims (6)
1. A shut-off valve having good sealability, comprising: connecting pipe (1), the surface fixedly connected with valve body (2) of connecting pipe (1), the surface fixedly connected with runner pipe (3) of connecting pipe (1), two filling openings (8) have been seted up to the internal surface of connecting pipe (1), the internal surface fixedly connected with of connecting pipe (1) a plurality of rubber rings (7), the both sides surface fixedly connected with of connecting pipe (1) a plurality of thread board (4), the surface rotation of thread board (4) is connected with solid fixed ring (6), the internal surface fixedly connected with rubber piece (5) of thread board (4), the internal surface fixedly connected with spring holder (13) of valve body (2).
2. The shutoff valve of claim 1, wherein the shutoff valve is sealed: the inner surface sliding connection slider (12) of valve body (2), the surface rotation of slider (12) is connected with pull rod (9), the surface fixedly connected with pivot (10) of pull rod (9), the surface fixedly connected with of pivot (10) cuts off piece (11).
3. The shut-off valve of claim 2 having good sealing properties, wherein: the outer surface of the cutting block (11) is in sliding connection with the inner surface of the connecting pipe (1), a sealing ring (21) is fixedly connected with the outer surface of the cutting block (11), a sealing groove (22) is formed in the inner surface of the connecting pipe (1), and the outer surface of the sealing ring (21) is in sliding connection with the inner surface of the sealing groove (22).
4. The shut-off valve of claim 2 having good sealing properties, wherein: the outer surface of the first slider (12) is fixedly connected with a guide rod (16), the outer surface of the guide rod (16) is fixedly connected with a second slider (15), and the outer surface of the second slider (15) is fixedly connected with a first spring (14).
5. The shutoff valve of claim 4, wherein: the outer surfaces of the two ends of the first spring (14) are fixedly connected with the outer surface of the second sliding block (15) and the outer surface of the spring seat (13) respectively, and the outer surface of the second sliding block (15) is slidably connected with the inner surface of the valve body (2).
6. A shut-off valve of claim 3 having a good seal, wherein: two sliding grooves (20) are formed in the inner surface of the valve body (2), limiting blocks (17) are connected to the inner surface of the sliding grooves (20) in a sliding mode, toggle rods (19) are fixedly connected to the outer surfaces of the limiting blocks (17), springs II (18) are fixedly connected to the outer surfaces of the limiting blocks (17), and the outer surfaces of the two ends of the springs II (18) are fixedly connected with the outer surfaces of the limiting blocks (17) and the inner surfaces of the sliding grooves (20) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320537309.9U CN219655272U (en) | 2023-03-20 | 2023-03-20 | Shut-off valve that leakproofness is good |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320537309.9U CN219655272U (en) | 2023-03-20 | 2023-03-20 | Shut-off valve that leakproofness is good |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219655272U true CN219655272U (en) | 2023-09-08 |
Family
ID=87879642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320537309.9U Active CN219655272U (en) | 2023-03-20 | 2023-03-20 | Shut-off valve that leakproofness is good |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219655272U (en) |
-
2023
- 2023-03-20 CN CN202320537309.9U patent/CN219655272U/en active Active
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