CN210566483U

CN210566483U - Gas self-closing valve with manual switch for pipeline

Info

Publication number: CN210566483U
Application number: CN201921628895.8U
Authority: CN
Inventors: 王志乐
Original assignee: Taizhou Tongyang Pipe Co Ltd
Current assignee: Taizhou Tongyang Pipe Co Ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-05-19
Anticipated expiration: 2029-09-27

Abstract

The utility model provides a take manual switch pipeline gas self-closing valve belongs to gas pipeline accessory technical field. The self-closing valve solves the problems that the existing self-closing valve is inconvenient to operate, poor in sealing performance and the like. The gas self-closing valve with the manual switch for the pipeline comprises a valve body, wherein a valve sleeve is fixedly connected to a gas outlet end of the valve body, a partition plate is arranged in the valve sleeve, the valve sleeve penetrates through a cylindrical push cylinder to be arranged, the inner wall of the push cylinder is provided with an annular groove which can be communicated with a vent hole and a gas outlet hole after the push cylinder axially displaces, a limiting structure is arranged between the valve sleeve and the valve body, a first sealing ring and a second sealing ring which are located on two sides of the annular groove and can be always kept sealed in the axial displacement process of the push cylinder are arranged between the valve sleeve and the push cylinder, a third sealing ring which is located between the vent hole and the gas outlet hole is embedded in the outer wall of the valve. The utility model has the advantages of convenient manual switch, beautiful and simple appearance, good sealing durability and the like.

Description

Gas self-closing valve with manual switch for pipeline

Technical Field

The utility model belongs to the technical field of gas pipeline accessory, a self-closing valve is related to, in particular to take manual switch pipeline gas self-closing valve.

Background

The gas self-closing valve for pipeline is installed on low-pressure gas pipeline, and when the gas supply pressure of pipeline is under-pressure or over-pressure, it has no need of electric power or other external power, and can be automatically closed and manually opened.

For example, chinese patent literature discloses a pipeline gas self-closing valve [ application No.: 201620874934.2, respectively; authorization notice number: CN205877318U ], which comprises a valve body, a valve cover and a valve rod, wherein the valve body is provided with an air inlet and an air outlet, the valve cover is fixedly connected to the valve body, and the valve cover is provided with a central hole, the lower end of the valve rod is arranged in the valve body along the axial sliding direction, and a diaphragm is fixedly connected between the lower end of the valve rod and the valve body, a pneumatic chamber is formed between the lower side surface of the diaphragm and the inner wall of the valve body, a valve core is positioned in the pneumatic chamber, the upper end of the valve rod extends out of the central hole of the valve cover, the valve core further comprises a lifting knob with a cavity inside, the lifting knob is connected to the valve cover along the axial sliding direction of the valve rod, the upper end of the valve rod extends into the cavity of the lifting knob, when the air inlet of the valve body is opened.

The pipeline gas self-closing valve improves safety to a certain extent, for manually controlling the on-off of gas, a ball valve assembly is additionally arranged at a gas outlet of the valve body, the ball valve assembly comprises a ball core, a valve rod and a hand wheel, the ball core is positioned in the gas outlet, the inner end of the valve rod is fixedly connected with the ball core, the outer end of the valve rod extends out of the valve body and is fixedly connected with the hand wheel, the valve rod and the ball core are driven by the hand wheel to rotate, and therefore the gas outlet is manually opened or closed, but the opening and closing of the ball valve assembly are inconvenient, the appearance is not attractive and simple enough, and the sealing durability.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a take manual switch pipeline gas self-closing valve that manual switch is convenient, the appearance is pleasing to the eye succinct and sealed persistence is good.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a take manual switch pipeline gas self-closing valve, includes the valve body, the valve body have inlet end and the end of giving vent to anger, its characterized in that, the end of giving vent to anger of valve body link firmly and have the valve barrel-shaped valve barrel, the valve barrel in have the baffle of separating its inner chamber into the chamber of ventilating and the chamber of giving vent to anger, the chamber of ventilating communicate with the end of giving vent to anger, the valve barrel radially link up and have a plurality of be close to the air vent that the baffle set up and communicate in the chamber of ventilating, the valve barrel still radially link up and have a plurality of be close to the venthole that the baffle set up and communicate in the venthole of giving vent to anger, the valve barrel inner wall push away the section of thick bamboo and have the ring channel that can communicate air vent and venthole after pushing away section of thick bamboo axial displacement, valve barrel and valve body between be equipped with and be used for stopping the stop gear of the corresponding tip of the push away section of thick bamboo after axial displacement And a third sealing ring which is positioned between the vent hole and the air outlet hole is embedded in the outer wall of the valve sleeve, and the third sealing ring is sealed on the inner wall of the push cylinder when the vent hole is not communicated with the air outlet hole by the annular groove.

In the above pipeline gas self-closing valve with the manual switch, the limiting mechanism comprises a blocking shoulder arranged at the end part of the valve body and a blocking ring radially protruding on the outer wall of the valve cover, the first sealing ring is arranged close to the blocking shoulder, when one end of the push cylinder is abutted against the blocking ring, the annular groove communicates the vent hole with the vent hole, and when the other end of the push cylinder is abutted against the blocking shoulder, the annular groove is positioned between the first sealing ring and the third sealing ring.

As another situation, in the above gas self-closing valve with a manual switch for a pipeline, the limiting mechanism comprises a first snap spring and a second snap spring which are embedded in the outer wall of the valve cover, and the first snap spring is arranged close to the valve body. The push cylinder axially displaces between the first snap spring and the second snap spring, and the first snap spring and the second snap spring play a role in blocking.

In the gas self-closing valve with the manual switch pipeline, the first sealing ring is embedded in the inner wall of the push cylinder, and the second sealing ring is embedded in the outer wall of the valve cover. Therefore, the axial length of the push cylinder does not need to be long, the first sealing ring moves along with the push cylinder to ensure the sealing performance, and the second sealing ring does not move to ensure the sealing effect.

In the above gas self-closing valve with the manual switch pipeline, the outer wall of the valve cover is provided with an annular groove, and when one end of the push cylinder is abutted against the blocking shoulder, the first sealing ring is sealed in the annular groove. The annular groove has a limiting effect on the sealing ring, and the first sealing ring is in close contact with the annular groove, so that the sealing effect is improved.

In the gas self-closing valve with the manual switch pipeline, the middle part of the outer wall of the push cylinder is provided with a circle of concave arc-shaped surface. The arc-shaped surface provides a force applying part, so that the push cylinder is convenient to push manually, and the arc-shaped surface can be replaced by an annular groove in actual manufacturing.

In the gas self-closing valve with the manual switch pipeline, the valve cover is in threaded connection with the valve body, and an O-shaped ring is arranged between the valve cover and the valve body. Thus, the connection is convenient and the sealing performance is good.

In the gas self-closing valve with the manual switch pipeline, the valve cover is provided with a threaded connecting section at the gas outlet cavity.

Compared with the prior art, the gas self-closing valve with the manual switch pipeline realizes manual switch by pushing the push cylinder, is convenient to operate, and the push cylinder cannot cause a sharp feeling to people, so that the appearance is attractive and concise, the sealing durability is good, and the durability is good.

Drawings

Fig. 1 is a three-dimensional structure diagram of the gas self-closing valve with a manual switch pipeline.

FIG. 2 is a structural section view of the gas self-closing valve with a manual switch pipeline.

FIG. 3 is a sectional view of the valve cap and the push cylinder of the gas self-closing valve with a manual switch.

In the figure, 1, a valve body; 2. an air inlet end; 3. an air outlet end; 4. a valve housing; 5. a partition plate; 6. a vent lumen; 7. an air outlet cavity; 8. a vent hole; 9. an air outlet; 10. a push cylinder; 11. an annular groove; 12. a first sealing ring; 13. a second sealing ring; 14. a third sealing ring; 15. a shoulder block; 16. a baffle ring; 17. an annular groove; 18. an arc-shaped surface; 19. an O-shaped ring; 20. and (4) connecting the sections.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2 and 3, the gas self-closing valve with the manual switch pipeline comprises a valve body 1, the valve body 1 is provided with a gas inlet end 2 and a gas outlet end 3, the gas outlet end 3 of the valve body 1 is fixedly connected with a cylindrical valve sleeve 4, a partition plate 5 for dividing the inner cavity of the valve sleeve 4 into a gas vent cavity 6 and a gas outlet cavity 7 is arranged in the valve sleeve 4, the gas vent cavity 6 is communicated with the gas outlet end 3, a plurality of vent holes 8 which are arranged close to the partition plate 5 and communicated with the gas vent cavity 6 are radially penetrated through the valve sleeve 4, a plurality of gas outlet holes 9 which are arranged close to the partition plate 5 and communicated with the gas outlet cavity 7 are radially penetrated through the valve sleeve 4, the number of the vent holes 8 and the number of the gas outlet holes 9 are determined according to the actual manufacturing condition, the valve sleeve 4 penetrates through a cylindrical push cylinder 10, the inner wall of the push cylinder 10 is provided with an annular groove 11 which can be communicated with the vent holes 8 and the gas outlet holes 9 after, a first sealing ring 12 and a second sealing ring 13 which are positioned at two sides of the annular groove 11 and always keep sealed in the axial displacement process of the push cylinder 10 are arranged between the valve sleeve 4 and the push cylinder 10, a third sealing ring 14 positioned between the vent hole 8 and the air outlet hole 9 is embedded in the outer wall of the valve sleeve 4, and when the annular groove 11 does not communicate the vent hole 8 with the air outlet hole 9, the third sealing ring 14 is sealed on the inner wall of the push cylinder 10.

When the gas self-closing valve with the manual switch for the pipeline is used, the manual switch is realized by pushing the push cylinder 10, the operation is convenient, and the push cylinder 10 cannot cause a sharp feeling to people, so that the appearance is attractive and concise. During specific operation, one end of the push cylinder 10 is blocked by the limiting mechanism, if the annular groove 11 does not communicate the vent hole 8 with the air outlet hole 9 at the moment, the pipeline gas self-closing valve with the manual switch is in a closed state, the sealing ring I12, the sealing ring II 13 and the sealing ring III 14 provide effective sealing, the sealing durability is good, the use safety is good, and the sealing ring can be added between the valve sleeve 4 and the push cylinder 10 to improve the sealing performance during actual manufacturing; when the gas self-closing valve with the manual switch for the pipeline needs to be opened, the push cylinder 10 is pushed to make the axial displacement of the push cylinder 10 so that the other end of the push cylinder 10 is blocked by the limiting mechanism, at the moment, the annular groove 11 enables the vent hole 8 to be communicated with the air outlet hole 9, gas in the vent cavity 6 enters the annular groove 11 from the vent hole 8 and then enters the air outlet hole 9 to be discharged from the air outlet cavity 7, the first sealing ring 12 and the second sealing ring 13 still keep a sealing state to prevent the gas from leaking outwards, and the third sealing ring 14 is located in the annular groove 11 and is not sealed in the annular groove 11, so.

In further detail, the limiting mechanism in this embodiment includes a retaining shoulder 15 provided at the end of the valve body 1 and a retaining ring 16 radially protruding from the outer wall of the valve cover, the first sealing ring 12 is disposed near the retaining shoulder 15, when one end of the push cylinder 10 abuts against the retaining ring 16, the annular groove 11 communicates the vent hole 8 with the vent hole 9, and when the other end of the push cylinder 10 abuts against the retaining shoulder 15, the annular groove 11 is located between the first sealing ring 12 and the third sealing ring 14. When the other end of the push cylinder 10 abuts against the retaining shoulder 15, the third sealing ring 14 plays a role in sealing and blocking, gas in the vent hole 8 cannot enter the gas outlet hole 9 to be discharged, and the first sealing ring 12 prevents the gas entering the annular groove 11 from the vent hole 8 from leaking; certainly, during actual manufacturing, the position of the annular groove 11 on the inner wall of the push cylinder 10 can be adjusted, so that when one end of the push cylinder 10 abuts against the baffle ring 16, the annular groove 11 does not communicate the vent hole 8 with the vent hole 9, the annular groove 11 is located between the second sealing ring 13 and the third sealing ring 14, and when the other end of the push cylinder 10 abuts against the baffle shoulder 15, the annular groove 11 communicates the vent hole 8 with the vent hole 9.

In order to achieve good sealing performance and avoid overlong push cylinder 10, a first sealing ring 12 is embedded in the inner wall of push cylinder 10, and a second sealing ring 13 is embedded in the outer wall of the valve cover; for good limiting and sealing performance, the outer wall of the valve cover is provided with an annular groove 17, and when one end of the push cylinder 10 abuts against the retaining shoulder 15, the first sealing ring 12 is sealed in the annular groove 17; for convenient operation, the middle part of the outer wall of the push cylinder 10 is provided with a circle of concave arc-shaped surface 18; in order to facilitate connection and have good sealing performance, the valve cover is in threaded connection with the valve body 1, and an O-shaped ring 19 is arranged between the valve cover and the valve body 1; the valve gap has screwed linkage segment 20 in going out gas cavity 7 department, makes things convenient for the pipe connection like this, and linkage segment 20 is the valve gap in the external screw thread that goes out gas cavity 7 outer wall and have in this embodiment.

Those not described in detail in this specification are within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a take manual switch pipeline gas self-closing valve, includes valve body (1), valve body (1) inlet end (2) and the end of giving vent to anger (3) have, its characterized in that, the end of giving vent to anger (3) of valve body (1) link firmly valve barrel-shaped valve barrel (4), valve barrel (4) in have and separate its inner chamber for baffle (5) of ventilating chamber (6) and air outlet chamber (7), ventilating chamber (6) be linked together with end of giving vent to anger (3), valve barrel (4) radially link up and have a plurality of to be close to baffle (5) and set up and communicate in air vent (8) of ventilating chamber (6), valve barrel (4) still radially link up and have a plurality of to be close to baffle (5) and communicate in air outlet hole (9) of air outlet chamber (7), valve barrel (4) pass a push away a section of thick bamboo (10) that are the tube-shape and set up, push away section of thick bamboo (10) inner wall have and can communicate the ring of (8) and air outlet hole (9) after pushing away axial The valve sleeve (4) and the valve body (1) between be equipped with the stop gear who is used for blockking the corresponding tip of a push cylinder (10) after the axial displacement, valve sleeve (4) and push cylinder (10) between be equipped with and be located ring channel (11) both sides and keep sealed sealing washer one (12) and sealing washer two (13) all the time in push cylinder (10) axial displacement process, valve sleeve (4) outer wall inlay and be equipped with and be located sealing washer three (14) between air vent (8) and venthole (9) and when ring channel (11) do not communicate air vent (8) and venthole (9) sealing washer three (14) seal in push cylinder (10) inner wall.

2. The gas self-closing valve with the manual switch pipeline is characterized in that the limiting mechanism comprises a retaining shoulder (15) arranged at the end of the valve body (1) and a retaining ring (16) protruding radially from the outer wall of the valve cover, the first sealing ring (12) is arranged close to the retaining shoulder (15), the annular groove (11) communicates the vent hole (8) with the vent hole (9) when one end of the push cylinder (10) abuts against the retaining ring (16), and the annular groove (11) is positioned between the first sealing ring (12) and the third sealing ring (14) when the other end of the push cylinder (10) abuts against the retaining shoulder (15).

3. The gas self-closing valve with the manual switch for the pipeline is characterized in that a clamp spring I and a clamp spring II are embedded in the outer wall of the valve cover, and the clamp spring I is arranged close to the valve body (1).

4. The gas self-closing valve with the manual switch for the pipeline is characterized in that a first sealing ring (12) is embedded in the inner wall of the push cylinder (10), and a second sealing ring (13) is embedded in the outer wall of the valve cover.

5. The gas self-closing valve with the manual switch pipeline is characterized in that the outer wall of the valve cover is provided with an annular groove (17), and the first sealing ring (12) is sealed in the annular groove (17) when one end of the push cylinder (10) abuts against the retaining shoulder (15).

6. The gas self-closing valve with the manual switch pipeline is characterized in that the middle of the outer wall of the push cylinder (10) is provided with a circle of concave arc-shaped surfaces (18).

7. The pipeline gas self-closing valve with the manual switch according to claim 6, wherein the valve cover is in threaded connection with the valve body (1) and an O-shaped ring (19) is arranged between the valve cover and the valve body (1).

8. The gas self-closing valve with manual switch pipeline according to claim 7 is characterized in that the valve cover is provided with a threaded connecting section (20) at the gas outlet cavity (7).