CN219452995U - Pipeline gas self-closing valve - Google Patents

Abstract

The utility model relates to the technical field of gas pipeline valves, and discloses a pipeline gas self-closing valve. The rotary valve comprises a pipeline, a knob is rotationally connected to the top end of the pipeline, a valve core is fixedly connected to the bottom end of the knob, two sealing rings are arranged outside the valve core, a ball is fixedly connected to the bottom end of the valve core, a polytetrafluoroethylene gasket is rotationally arranged outside the ball, a mounting groove is formed in the pipeline, and a mounting block is slidably connected to the inside of the mounting groove. According to the utility model, through the cooperation between the structures such as the knob and the valve core, the gas leakage is avoided when the filter screen is replaced, so that the risk of replacing the filter screen by workers is reduced, the whole process is safer, the filter screen can be conveniently disassembled through the cooperation between the structures such as the bolts and the fixed blocks, the disassembly efficiency is higher, and the time for the workers to disassemble and clean the filter screen is reduced.

Description

Pipeline gas self-closing valve

Technical Field

The utility model relates to the technical field of gas pipeline valves, in particular to a pipeline gas self-closing valve.

Background

The basic principle of the pipeline gas self-closing valve is that permanent magnetic materials are magnetized into a permanent memory multipolar permanent magnetic linkage mechanism according to design requirements, the change of gas pressure parameters passing through the valve is identified, and when the gas pressure exceeds a safety set value, the valve is automatically closed and the gas source is cut off.

The existing pipeline gas self-closing valve needs to detect and clear up the filter screen in the existing pipeline gas self-closing valve frequently when using to prevent that the filter screen from blocking up and then leading to the air feed not enough, however, when changing the filter screen, the following is not enough, firstly, when changing the filter screen, the flange cover can not block up the air supply after opening, thereby the gas leakage appears easily, and then the dangerous coefficient that leads to workman work is higher, secondly, the filter screen is generally inside the pipeline through bolt fastening, and then need place extracting tool in the pipeline inside when dismantling the bolt, thereby lead to changing inconvenient, and then make to change comparatively troublesome, make change efficiency lower, for this reason, the present pipeline gas self-closing valve of technical personnel proposes to solve above-mentioned problem.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a pipeline gas self-closing valve.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a pipeline gas self-closing valve, includes the pipeline, the top of pipeline is rotated and is connected with the knob, the bottom fixedly connected with case of knob, the outside of case is provided with two sealing washer, the bottom fixedly connected with ball of case, the outside of ball rotates there is polytetrafluoroethylene packing ring, the inside of pipeline is provided with the mounting groove, the inside sliding connection of mounting groove has the installation piece, the top fixedly connected with pull rod of installation piece, the inside fixedly connected with filter screen of installation piece, the right-hand member fixedly connected with valve body of pipeline.

As a further description of the above technical solution:

the outside of pipeline is provided with two rubber layers, the outside fixedly connected with solid fixed ring of rubber layer, both ends all fixedly connected with fixed block around the solid fixed ring, gu fixed ring's inside threaded connection has the bolt.

As a further description of the above technical solution:

the outside of case and the inside rotation of pipeline are connected, the outside of sealing washer is laminated with the inside of pipeline.

As a further description of the above technical solution:

the outside of the ball is rotationally connected with the inside of the pipeline.

As a further description of the above technical solution:

the top of installation piece is laminated with the bottom of rubber layer mutually, the outside of polytetrafluoroethylene packing ring and the inside fixed connection of pipeline.

As a further description of the above technical solution:

the bolt connects the upper and lower fixed blocks.

As a further description of the above technical solution:

the left end of the pull rod is attached to the inner part of the pipeline.

The utility model has the following beneficial effects:

1. according to the utility model, through the cooperation of the knob, the valve core, the sealing ring, the ball and other structures, the pipeline can be blocked, so that gas leakage can not be caused when the filter screen is replaced, the risk of replacing the filter screen by workers is reduced, and the whole process is safer.

2. According to the utility model, through the cooperation of the structures such as the bolts, the fixed blocks, the fixed rings, the rubber layers and the like, the filter screen can be conveniently disassembled, so that the disassembly efficiency is higher, and the time for workers to disassemble and clean the filter screen is shortened.

Drawings

FIG. 1 is a perspective view of a pipeline gas self-closing valve provided by the utility model;

FIG. 2 is a schematic view of a sphere structure of a pipeline gas self-closing valve according to the present utility model;

FIG. 3 is a schematic diagram of the rubber layer structure of the pipeline gas self-closing valve;

fig. 4 is a schematic diagram of a filter screen structure of a pipeline gas self-closing valve according to the present utility model.

Legend description:

1. a pipe; 2. a knob; 3. a valve core; 4. a seal ring; 5. a ball; 6. a polytetrafluoroethylene gasket; 7. a mounting groove; 8. a mounting block; 9. a pull rod; 10. a filter screen; 11. a rubber layer; 12. a fixing ring; 13. a fixed block; 14. a bolt; 15. and a valve body.

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, one embodiment provided by the present utility model is: the utility model provides a pipeline gas self-closing valve, including pipeline 1, pipeline 1 is the part of this pipeline gas self-closing valve, the top of pipeline 1 rotates and is connected with knob 2, knob 2 direct rotation connects on the top of pipeline 1, the bottom fixedly connected with case 3 of knob 2, through rotating knob 2, and then drive case 3 rotation, the outside of case 3 is provided with two sealing washer 4, sealing washer 4 makes the gas can not follow between case 3 and the pipeline 1, thereby can not cause the gas leakage, the bottom fixedly connected with ball 5 of case 3, through pivot case 3, thereby drive ball 5 rotation, when the through-hole department of ball 5 communicates with pipeline 1, the gas can normally circulate, when the through-hole department of ball 5 does not communicate with pipeline 1, the gas can not normally circulate, so that can not cause the gas leakage when changing filter screen 10 to make the workman can dismantle clearance filter screen 10 safely, the outside of ball 5 rotates there is polytetrafluoroethylene packing ring 6, ball 5 directly rotates in polytetrafluoroethylene packing ring 6's inside, pipeline 1's inside is provided with mounting groove 7, mounting groove 7 plays spacing effect to internally mounted piece 8, mounting groove 7's inside sliding connection has mounting piece 8, mounting piece 8 directly slides in mounting piece 8's inside, mounting piece 8's top fixedly connected with pull rod 9, through upwards pulling pull rod 9, thereby drive mounting piece 8 and upwards remove, mounting piece 8's inside fixedly connected with filter screen 10, filter screen 10 directly installs in mounting piece 8's inside, pipeline 1's right-hand member fixedly connected with valve body 15, valve body 15 direct fixedly connected at pipeline 1's right-hand member.

The outside of pipeline 1 is provided with two rubber layers 11, rubber layer 11 plays sealed effect to mounting groove 7, make the gas can not follow pipeline 1 inside outflow, the outside fixedly connected with solid fixed ring 12 of rubber layer 11, gu fixed ring 12 plays spacing effect to mounting block 8, gu fixed ring 12's the equal fixedly connected with fixed block 13 in front and back both ends, gu fixed block 13 plays fixed effect to gu fixed ring 12, gu fixed ring 12's inside threaded connection has bolt 14, separate two fixed blocks 13 from top to bottom through bolt 14, and then upwards pulling pull rod 9, thereby drive mounting block 8 upwards move, and then make filter screen 10 can be by convenient dismantlement, and then make dismantlement efficiency higher, thereby reduce the time that the workman dismantled clearance filter screen 10, the outside of case 3 is connected with pipeline 1's inside rotation, the inside rotation of case 3 is direct at pipeline 1, the inside rotation of sealing washer 4, thereby make the gas can not flow from the gap between case 3 and the pipeline 1, the outside of ball 5 and pipeline 1's inside rotation are connected, ball 5 is direct at pipeline 1's inside rotation, and the inside rotation of mounting block 8 is separated from top and two fixed blocks 13, and then the top of pipeline 1 can be carried out the top and the sealing washer 1 is carried out to the inside rotation of sealing washer 1, and then the top end is connected with the sealing washer 1 is greatly to the inside washer 1, and the top is reached, and the top is connected with the inside washer is 1, and is further made to be connected with the inside washer 1, and is connected with the inside rotation of the inside washer 1, and is connected with the inside 1.

Working principle: when needs are dismantled and are changed filter screen 10, through rotating knob 2, thereby drive case 3 rotation, and then drive ball 5 rotation, thereby make ball 5's through-hole department no longer communicate with each other with pipeline 1 is inside, and then can prevent pipeline 1 inside gas flow direction filter screen 10 department, make can not cause the gas to leak when changing filter screen 10, thereby make the workman dismantle clearance filter screen 10 safely, and then twist bolt 14, thereby take out bolt 14 thereby fixed block 13 is inside, thereby make two solid fixed ring 12 separate, and then upwards pulling pull rod 9, thereby drive installation piece 8 and upwards remove, and then make filter screen 10 can be by convenient dismantlement, and then make dismantlement efficiency higher, thereby reduce the time that the workman dismantled clearance filter screen 10.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims (7)

1. The utility model provides a pipeline gas self-closing valve, includes pipeline (1), its characterized in that: the utility model discloses a pipeline, including pipeline (1), knob (2) is connected with in the top rotation of pipeline (1), the bottom fixedly connected with case (3) of knob (2), the outside of case (3) is provided with two sealing washer (4), the bottom fixedly connected with ball (5) of case (3), the outside of ball (5) rotates there is polytetrafluoroethylene packing ring (6), the inside of pipeline (1) is provided with mounting groove (7), the inside sliding connection of mounting groove (7) has installation piece (8), the top fixedly connected with pull rod (9) of installation piece (8), the inside fixedly connected with filter screen (10) of installation piece (8), the right-hand member fixedly connected with valve body (15) of pipeline (1).

2. The conduit gas self-closing valve as recited in claim 1, wherein: the outside of pipeline (1) is provided with two rubber layers (11), the outside fixedly connected with solid fixed ring (12) of rubber layer (11), both ends all fixedly connected with fixed block (13) around gu fixed ring (12), the inside threaded connection of solid fixed ring (12) has bolt (14).

3. The conduit gas self-closing valve as recited in claim 1, wherein: the outside of case (3) rotates with the inside of pipeline (1) to be connected, the outside of sealing washer (4) is laminated with the inside of pipeline (1).

4. The conduit gas self-closing valve as recited in claim 1, wherein: the outer part of the ball (5) is rotationally connected with the inner part of the pipeline (1).

5. The conduit gas self-closing valve as recited in claim 1, wherein: the top of the mounting block (8) is attached to the bottom of the rubber layer (11), and the outer part of the polytetrafluoroethylene gasket (6) is fixedly connected with the inner part of the pipeline (1).

6. The conduit gas self-closing valve as recited in claim 2, wherein: the bolt (14) connects the upper and lower fixed blocks (13).

7. The conduit gas self-closing valve as recited in claim 1, wherein: the left end of the pull rod (9) is attached to the inside of the pipeline (1).