CN219082317U - Leakage-proof gas self-closing valve - Google Patents
Leakage-proof gas self-closing valve Download PDFInfo
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- CN219082317U CN219082317U CN202320256580.5U CN202320256580U CN219082317U CN 219082317 U CN219082317 U CN 219082317U CN 202320256580 U CN202320256580 U CN 202320256580U CN 219082317 U CN219082317 U CN 219082317U
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Abstract
The utility model discloses a leakage-proof gas self-closing valve, which belongs to the technical field of gas self-closing valves and comprises: the self-closing valve comprises a self-closing valve body, wherein a gas channel and a ball valve capable of closing the gas channel are arranged on the self-closing valve body, a through hole communicated with the gas channel is formed in the ball valve, the ball valve is rotatably arranged in a rotating cavity formed in the self-closing valve body, a groove is formed in the inner wall of the rotating cavity, a closing plate capable of closing the through hole is slidably arranged in the groove through a spring, and the ball valve is rotated to enable the through hole to be separated from the gas channel and matched with the closing plate to close the through hole. According to the utility model, the sealing plate is matched with the through hole, so that when the rotary ball valve seals the gas channel, gas is prevented from being totally sealed due to a gap between the ball valve and the rotary cavity; the tightness of the ball valve to the gas channel is improved, and gas leakage is further prevented when the self-closing valve body is closed.
Description
Technical Field
The utility model belongs to the technical field of gas self-closing valves, and particularly relates to a leakage-proof gas self-closing valve.
Background
The gas self-closing valve is installed on the pipeline of the low-pressure gas system, and when the gas supply pressure of the pipeline is under-pressure or over-pressure, the device can be automatically closed and needs to be manually opened without electricity or other external power.
Chinese patent CN218468340U discloses a gas self-closing valve, is provided with the ball valve that can seal the gas passageway, however when the ball valve rotates in the gas passageway, because there is the clearance that rotates between ball valve and the gas passageway for sealed effect is not good, leads to the ball valve to seal the gas passageway when, still has a small amount of gas circulation.
It is therefore desirable to provide a leak-proof gas self-closing valve to address the above-mentioned problems.
Disclosure of Invention
Therefore, the utility model aims to provide a leakage-proof gas self-closing valve, which is used for solving the problems that in the prior art, a rotation gap exists between a ball valve and a gas channel, so that the sealing effect is poor, and a small amount of gas flows when the ball valve seals the gas channel.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a leakage-proof gas self-closing valve, comprising: the self-closing valve comprises a self-closing valve body, wherein a gas channel and a ball valve capable of closing the gas channel are arranged on the self-closing valve body, a through hole communicated with the gas channel is formed in the ball valve, the ball valve is rotatably arranged in a rotating cavity formed in the self-closing valve body, a groove is formed in the inner wall of the rotating cavity, a closing plate capable of closing the through hole is slidably arranged in the groove through a spring, and the ball valve is rotated to enable the through hole to be separated from the gas channel and matched with the closing plate to close the through hole.
Further, install on the self-closing valve body with the knob that the ball valve is connected, and the retaining ring, be equipped with fan-shaped opening on the retaining ring, the knob can be followed fan-shaped opening is spacing rotates, rotates the knob with fan-shaped open-ended first end is when joining in marriage, and the through-hole is located same straight line with the axis of gas passageway, rotates the knob with fan-shaped open-ended second end is when joining in marriage, through-hole and closing plate cooperation are in order to close the through-hole.
Further, the side of the closing plate, which is close to the through hole, is provided in an arc shape.
Further, the outer wall of the ball valve and the through hole are arranged to be round angles.
Further, a gasket is mounted on the side of the closing plate close to the through hole.
Further, the number of the grooves is two, the two grooves are coaxially arranged, and the axis is perpendicular to the axis of the fuel gas channel.
The utility model has the beneficial effects that: by arranging the sealing plate to be matched with the through hole, when the rotary ball valve seals the gas channel, gas is prevented from being totally sealed due to a gap between the ball valve and the rotary cavity; the tightness of the ball valve to the gas channel is improved, and gas leakage is further prevented when the self-closing valve body is closed.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objects and other advantages of the utility model may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
In order to make the objects, technical solutions and advantageous effects of the present utility model more clear, the present utility model provides the following drawings for description:
FIG. 1 is a partial cross-sectional view of an embodiment of the present utility model;
FIG. 2 is a schematic diagram of the overall structure of an embodiment of the present utility model;
fig. 3 is a cross-sectional view of an embodiment of the present utility model at a ball valve.
The figures are marked as follows: 1. a self-closing valve body; 101. a rotating chamber; 102. a groove; 2. a gas passage; 3. a ball valve; 301. a through hole; 302. round corners; 4. a spring; 5. a closing plate; 6. a knob; 7. a retainer ring; 701. a fan-shaped opening.
Detailed Description
Referring to fig. 1 to 3, the present utility model provides a gas self-closing valve for preventing leakage, comprising: the self-closing valve comprises a self-closing valve body 1, wherein a gas channel 2 and a ball valve 3 capable of closing the gas channel 2 are arranged on the self-closing valve body 1, a through hole 301 communicated with the gas channel 2 is arranged on the ball valve 3, the ball valve 3 is rotatably arranged in a rotating cavity 101 arranged on the self-closing valve body 1, a groove 102 is formed in the inner wall of the rotating cavity 101, a closing plate 5 capable of closing the through hole 301 is slidably arranged in the groove 102 through a spring 4, and the ball valve 3 is rotated to enable the through hole 301 to be separated from the gas channel 2 and be matched with the closing plate 5 to close the through hole 301.
The working principle of the technical scheme is as follows: when the self-closing valve body 1 works normally, as shown in fig. 1, the ball valve 3 does not seal the gas channel 2, at this time, the through hole 301 is communicated with the gas channel 2, the sealing plate 5 is positioned in the groove 102 under the extrusion of the outer wall of the ball valve 3, the spring 4 is in a compressed state, and when the self-closing valve body 1 needs to be closed, as shown in fig. 3, the ball valve 3 is rotated to enable the through hole 301 and the gas channel 2 to be dislocated so that the outer wall of the ball valve 3 seals the gas channel 2, when the through hole 301 rotates to be matched with the sealing plate 5, the sealing plate 5 loses the limit of the outer wall of the ball valve 3, and is sprung into the through hole 301 under the action of the spring 4, so that the sealing plate 5 seals the through hole 301.
The beneficial effects of the technical scheme are that: by arranging the sealing plate 5 to be matched with the through hole 301, when the rotary ball valve 3 seals the gas channel 2, gas is prevented from being not fully sealed due to a gap between the ball valve 3 and the rotary cavity 101; the tightness of the ball valve 3 to the gas channel 2 is improved, and gas leakage is further prevented when the self-closing valve body 1 is closed.
In one embodiment of the present utility model, the closing plate 5 is disposed in an arc shape on the side close to the through hole 301.
The working principle and the beneficial effects of the technical scheme are as follows: when the ball valve 3 is rotated to open the gas passage 2, the inner wall of the ball valve 3 at the through hole 301 can press the closing plate 5 into the groove 102 along the arc shape of the closing plate 5 to facilitate the rotation of the ball valve 3.
In one embodiment of the present utility model, the outer wall of the ball valve 3 and the through hole 301 are provided with rounded corners 302.
The working principle and the beneficial effects of the technical scheme are that: the smooth rotation of the ball valve 3 is ensured.
In one embodiment of the utility model, the closing plate 5 is provided with a gasket on the side close to the through hole 301.
The working principle and the beneficial effects of the technical scheme are as follows: the sealing effect of the closing plate 5 to the through hole 301 is improved by providing a gasket.
In one embodiment of the present utility model, the self-closing valve body 1 is provided with a knob 6 connected with the ball valve 3, and a retainer ring 7, the retainer ring 7 is provided with a fan-shaped opening 701, the knob 6 can rotate along the fan-shaped opening 701 in a limited manner, and when the knob 6 is rotated to be matched with the first end of the fan-shaped opening 701, the through hole 301 and the axis of the gas channel 2 are positioned on the same straight line; when the knob 6 is turned to engage with the second end of the scalloped opening 701, the through-hole 301 engages with the closing plate 5 to close the through-hole 301.
The working principle and the beneficial effects of the technical scheme are as follows: as shown in fig. 2, by setting the knob 6 to rotate along the fan-shaped opening 701 in a limited manner, an operator can conveniently judge that the ball valve 3 closes or opens the gas channel 2.
Finally, it is noted that the above-mentioned preferred embodiments are only intended to illustrate rather than limit the utility model, and that, although the utility model has been described in detail by means of the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the utility model as defined by the appended claims.
Claims (6)
1. A leak-proof gas self-closing valve, comprising: the self-closing valve comprises a self-closing valve body, wherein a gas channel and a ball valve capable of closing the gas channel are arranged on the self-closing valve body, and the self-closing valve is characterized in that a through hole communicated with the gas channel is formed in the ball valve, the ball valve is rotatably arranged in a rotating cavity formed in the self-closing valve body, a groove is formed in the inner wall of the rotating cavity, a closing plate capable of closing the through hole is slidably arranged in the groove through a spring, and the ball valve is rotated to enable the through hole to be separated from the gas channel and matched with the closing plate to close the through hole.
2. The leak-proof gas self-closing valve as defined in claim 1, wherein: the self-closing valve comprises a self-closing valve body, and is characterized in that a knob connected with the ball valve and a retainer ring are arranged on the self-closing valve body, a fan-shaped opening is formed in the retainer ring, the knob can rotate along the fan-shaped opening in a limiting mode, when the knob is rotated to be matched with a first end of the fan-shaped opening, the axis of a through hole and the axis of a gas channel are located on the same straight line, and when the knob is rotated to be matched with a second end of the fan-shaped opening, the through hole is matched with a sealing plate to seal the through hole.
3. The leak-proof gas self-closing valve as defined in claim 1, wherein: the side of the closing plate close to the through hole is arc-shaped.
4. The leak-proof gas self-closing valve as defined in claim 1, wherein: the ball valve outer wall with the through-hole sets up to the fillet.
5. The leak-proof gas self-closing valve as defined in claim 1, wherein: and a sealing gasket is arranged on the side, close to the through hole, of the sealing plate.
6. The leak-proof gas self-closing valve as defined in claim 1, wherein: the number of the grooves is two, the two grooves are coaxially arranged, and the axis of the grooves is perpendicular to the axis of the fuel gas channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320256580.5U CN219082317U (en) | 2023-02-20 | 2023-02-20 | Leakage-proof gas self-closing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320256580.5U CN219082317U (en) | 2023-02-20 | 2023-02-20 | Leakage-proof gas self-closing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219082317U true CN219082317U (en) | 2023-05-26 |
Family
ID=86422766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320256580.5U Active CN219082317U (en) | 2023-02-20 | 2023-02-20 | Leakage-proof gas self-closing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219082317U (en) |
-
2023
- 2023-02-20 CN CN202320256580.5U patent/CN219082317U/en active Active
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