CN216200535U - Mechanical pipeline gas self-closing valve - Google Patents
Mechanical pipeline gas self-closing valve Download PDFInfo
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- CN216200535U CN216200535U CN202122328798.0U CN202122328798U CN216200535U CN 216200535 U CN216200535 U CN 216200535U CN 202122328798 U CN202122328798 U CN 202122328798U CN 216200535 U CN216200535 U CN 216200535U
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- lifting button
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Abstract
The utility model relates to the technical field of gas self-closing valves, in particular to a mechanical pipeline gas self-closing valve which comprises a valve body, a valve cover, a valve rod, a valve core, a diaphragm and a lifting button, wherein the valve cover is arranged on the valve body; a connecting component which can drive the valve rod to move upwards when the lifting button is lifted upwards is arranged between the lifting button and the valve rod; it is characterized in that the upper end part of the lifting button is arranged in a detachable way, and a groove is arranged on the side wall; an indicating block is arranged at the upper end of the valve rod; one end of the indicating block, which is far away from the valve rod, extends out of the lifting button from the groove; the outer side wall of the lifting button is provided with a state mark; the state mark is positioned at one side of the groove; when the air inlet is opened, the indicating block and the state mark are positioned at the same height; the upper end of the valve cover is provided with a limiting component which limits the lifting button to move only in a distance along the axial direction of the valve rod. In the utility model, the device is provided with an indication block and a state mark, so that the working state of the device can be observed conveniently; the upper end of the lifting button is arranged to be opened, so that the valve rod is convenient to reset.
Description
Technical Field
The utility model relates to the technical field of gas self-closing valves, in particular to a mechanical pipeline gas self-closing valve.
Background
Among the current patent, application number CN 201620874934.2's utility model provides a pipeline gas self-closing valve keeps carrying the button to support all the time and leans on the valve body up end through elastic element, covers the valve rod, avoids the valve rod to lead to the self-closing valve accident to close because external force pushes down, but above-mentioned structure exists not enoughly: the valve rod is always positioned in the closed lifting button, the position of the valve rod is difficult to observe from the outside, and the working state of the device cannot be known in time; and the lower end of the lifting button is always contacted with the upper end of the valve cover, and when the valve rod bounces upwards, the valve rod is difficult to press down and reset.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a mechanical pipeline gas self-closing valve convenient for observing the working state of a device aiming at the problems in the background art.
The technical scheme of the utility model is as follows: a mechanical pipeline gas self-closing valve comprises a valve body, a valve cover, a valve rod, a valve core, a diaphragm and a lifting button; the valve body is provided with an air inlet and an air outlet; the valve cover is arranged at the upper end of the valve body; the lower end of the valve rod is arranged in the valve body in an axial sliding mode along the self-axial direction, the upper end of the valve rod penetrates through the valve cover, and a diaphragm is fixedly connected between the lower end of the valve rod and the valve body; a pressure cavity is formed between the lower side surface of the diaphragm and the inner wall of the valve body; the movable valve core is arranged in the pressure cavity; a cavity is arranged inside the lifting button; the upper end of the valve rod extends into the cavity; a connecting component which can drive the valve rod to move upwards when the lifting button is lifted upwards is arranged between the lifting button and the upper end of the valve rod; the portable lifting button is characterized in that the upper end part of the lifting button is detachable, and a vertical groove is arranged on the side wall in a penetrating way; an indicating block is arranged on the side wall of the upper end of the valve rod; one end of the indicating block, which is far away from the valve rod, extends out of the cavity inside the lifting button from the groove; the outer side wall of the lifting button is provided with a state mark; the state mark is positioned at one side of the groove; when the air inlet is opened, the indicating block and the state mark are positioned at the same height; the upper end of the valve cover is provided with a limiting component which limits the lifting button to move only in a distance along the axial direction of the valve rod.
Preferably, the knob comprises a cylinder and a knob cap; the upper end of the cylinder is sleeved with a button lifting cap and is in threaded connection with the button lifting cap; the upper end of the valve rod extends into the cylinder; a groove is arranged on the side wall of the cylinder.
Preferably, the lower end of the groove extends through the lower end of the cylinder.
Preferably, the connection assembly comprises a snap ring and a sleeve; the sleeve is sleeved outside the valve rod, and the upper end of the sleeve extends into the lower end of the cylinder and is in threaded connection with the lower end of the cylinder; an annular groove is formed in the side wall of the upper end of the valve rod; the clamping ring is arranged inside the annular groove; the indicating block is arranged on the clamping ring; the outer diameter of the snap ring is larger than the inner diameter of the sleeve.
Preferably, the limiting assembly comprises a limiting cover and a spring; the limiting cover is detachably arranged at the upper end of the valve cover, and the upper end of the limiting cover penetrates through the arranging hole; the cylinder penetrates through the limiting cover from the hole; the indicating block and the state mark are positioned above the limiting cover; a flange is arranged on the outer side wall of the lower end of the sleeve; the outer diameter of the flange is larger than the diameter of the hole; the spring is arranged between the flange and the upper end of the limit cover along the axial direction of the valve rod.
Preferably, the upper end of the valve cover is provided with a fixed ring; the lower end of the limiting cover is sleeved at the upper end of the fixing ring and is in threaded connection with the upper end of the fixing ring.
Preferably, the state mark is arranged in a convex mode; the diameter of the hole is larger than the diameter of the cylinder plus twice the length of the status mark.
Preferably, a group of state marks are respectively arranged above and below the state mark; the three groups of state marks are linearly arranged along the axial direction of the valve rod, and in the three groups of state marks, the middle group of state marks are set to be green, and the other two groups of state marks are red.
Preferably, a valve which is manually opened and closed is arranged on the valve body; the valve is positioned between the air inlet and the air outlet.
Compared with the prior art, the utility model has the following beneficial technical effects:
in the utility model, an indicating block is arranged, one end of the indicating block extends out of a cylinder and moves up and down along with a valve rod; when the indicating block and the state mark are positioned at the same height, the device is started, and the gas supply of the pipeline is normal; when the position of the indicating block is higher than the state mark, the diaphragm and the valve rod are indicated to bounce upwards, the device is closed, and the pipeline has overpressure; when the position of the indicating block is lower than the state mark, the diaphragm and the valve rod move downwards, the device is closed, and the pipeline is under-pressure; when the valve rod is bounced upwards, the upper end of the lifting button can be opened, and the valve rod is pressed down to open the device. The device is provided with an indication block and a state mark, so that the working state of the device can be observed conveniently; the upper end of the lifting button is arranged to be opened, so that the valve rod is convenient to reset.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a partially enlarged schematic view of a portion a of fig. 1.
Fig. 3 is a schematic perspective view of the knob.
Reference numerals: 1. a valve body; 2. a valve cover; 3. a valve stem; 4. a valve core; 5. a membrane; 6. an air inlet; 7. an air outlet; 8. lifting the button; 9. a groove; 10. an indication block; 11. a status flag; 12. a cylinder; 13. a button lifting cap; 14. a snap ring; 15. a sleeve; 16. a flange; 17. a limiting cover; 18. an aperture; 19. a spring; 20. a stationary ring; 21. and (4) a valve.
Detailed Description
Example one
As shown in fig. 1-3, the mechanical pipeline gas self-closing valve provided by the utility model comprises a valve body 1, a valve cover 2, a valve rod 3, a valve core 4, a diaphragm 5 and a lifting button 8; the valve body 1 is provided with an air inlet 6 and an air outlet 7; the valve cover 2 is arranged at the upper end of the valve body 1; the lower end of the valve rod 3 is arranged in the valve body 1 in an axial sliding manner along the self-body, the upper end of the valve rod penetrates through the valve cover 2, and a diaphragm 5 is fixedly connected between the lower end of the valve rod 3 and the valve body 1; a pressure cavity is formed between the lower side surface of the diaphragm 5 and the inner wall of the valve body 1; a movable valve core 4 is arranged inside the pressure cavity; a cavity is arranged inside the lifting button 8; the upper end of the valve rod 3 extends into the cavity; a connecting component which can drive the valve rod 3 to move upwards when the lifting button 8 is lifted upwards is arranged between the lifting button 8 and the upper end of the valve rod 3; the utility model is characterized in that the upper end part of the lifting button 8 is detachable, and the side wall is provided with a vertical groove 9 in a through way; an indicating block 10 is arranged on the side wall of the upper end of the valve rod 3; one end of the indicating block 10 far away from the valve rod 3 extends out of the cavity inside the lifting knob 8 from the groove 9; the outer side wall of the lifting button 8 is provided with a state mark 11; the status mark 11 is located at one side of the slot 9; when the air inlet 6 is opened, the indicating block 10 and the state mark 11 are positioned at the same height; the upper end of the valve cover 2 is provided with a limiting component which limits the lifting button 8 to move only in a distance along the axial direction of the valve rod 3; the knob 8 comprises a cylinder 12 and a knob cap 13; the upper end of the cylinder 12 is sleeved with a button-lifting cap 13 and is in threaded connection with the button-lifting cap 13; the upper end of the valve rod 3 extends into the cylinder 12; the side wall of the cylinder 12 is provided with a groove 9; the lower end of the groove 9 penetrates through the lower end of the cylinder 12; the connecting assembly comprises a snap ring 14 and a sleeve 15; the sleeve 15 is sleeved on the outer side of the valve rod 3, the upper end of the sleeve extends into the lower end of the cylinder 12, and the sleeve is in threaded connection with the lower end of the cylinder 12; an annular groove is formed in the side wall of the upper end of the valve rod 3; the snap ring 14 is arranged inside the annular groove; the indicating block 10 is arranged on the snap ring 14; the outer diameter of the snap ring 14 is larger than the inner diameter of the sleeve 15; the limiting assembly comprises a limiting cover 17 and a spring 19; the limiting cover 17 is detachably arranged at the upper end of the valve cover 2, and the upper end of the limiting cover penetrates through the arranging hole 18; the cylinder 12 penetrates through the limit cover 17 from the hole 18; the indication block 10 and the status mark 11 are positioned above the limit cover 17; a flange 16 is arranged on the outer side wall of the lower end of the sleeve 15; the outer diameter of the flange 16 is greater than the diameter of the bore 18; a spring 19 is provided between the flange 16 and the upper end of the stopper cap 17 in the axial direction of the valve stem 3; the upper end of the valve cover 2 is provided with a fixed ring 20; the lower end of the limiting cover 17 is sleeved at the upper end of the fixed ring 20 and is in threaded connection with the upper end of the fixed ring 20; the status mark 11 is set to be convex; the diameter of the hole 18 is larger than the diameter of the cylinder 12 plus twice the length of the status mark 11.
In the embodiment, an indicating block 10 is arranged, and one end of the indicating block 10 extends out of a cylinder 12 and moves up and down along with a valve rod 3; when the indicating block 10 and the state mark 11 are positioned at the same height, the device is started, and the air supply of the pipeline is normal; when the indicator block 10 is positioned above the status mark 11, it indicates that the diaphragm 5 and the valve rod 3 are sprung up, the device is closed, and the pipeline is overpressured; when the position of the indicating block 10 is lower than the state mark 11, the diaphragm 5 and the valve rod 3 are indicated to move downwards, the device is closed, and the pipeline is under-pressurized; when the valve rod 3 is bounced upwards, the knob cap 13 can be unscrewed, and the valve rod 3 is pressed down, so that the device is opened.
Example two
Compared with the first embodiment, the mechanical pipeline gas self-closing valve provided by the utility model has the difference that a group of state marks 11 are respectively arranged above and below the state marks 11; the three groups of state marks 11 are linearly arranged along the axial direction of the valve rod 3, and in the three groups of state marks 11, the middle group of state marks 11 is set to be green, and the other two groups of state marks 11 are red; a valve 21 which is manually opened and closed is arranged on the valve body 1; a valve 21 is located between the inlet 6 and the outlet 7.
In one embodiment of the utility model, the state marks 11 with different colors are arranged, so that different states of the device can be better distinguished, wherein red means that the device is closed, and green means that the device is opened; the valve 21 is provided to be manually opened and closed, and serves as a backup means for cutting off the air supply to the pipeline when the device fails.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (9)
1. A mechanical pipeline gas self-closing valve comprises a valve body (1), a valve cover (2), a valve rod (3), a valve core (4), a diaphragm (5) and a lifting button (8); the valve body (1) is provided with an air inlet (6) and an air outlet (7); the valve cover (2) is arranged at the upper end of the valve body (1); the lower end of the valve rod (3) is arranged inside the valve body (1) in an axial sliding mode along the self-body, the upper end of the valve rod penetrates through the valve cover (2), and a diaphragm (5) is fixedly connected between the lower end of the valve rod (3) and the valve body (1); a pressure cavity is formed between the lower side surface of the diaphragm (5) and the inner wall of the valve body (1); the movable valve core (4) is arranged in the pressure cavity; a cavity is arranged inside the lifting button (8); the upper end of the valve rod (3) extends into the cavity; a connecting component which can drive the valve rod (3) to move upwards when the lifting button (8) is lifted upwards is arranged between the lifting button (8) and the upper end of the valve rod (3); the utility model is characterized in that the upper end part of the lifting button (8) is arranged in a detachable way, and a vertical groove (9) is arranged on the side wall in a penetrating way; an indicating block (10) is arranged on the side wall of the upper end of the valve rod (3); one end of the indicating block (10) far away from the valve rod (3) extends out of the cavity inside the lifting button (8) from the groove (9); the outer side wall of the lifting button (8) is provided with a state mark (11); the state mark (11) is positioned at one side of the groove (9); when the air inlet (6) is opened, the indicating block (10) and the state mark (11) are positioned at the same height; the upper end of the valve cover (2) is provided with a limiting component which limits the lifting button (8) to move only in a distance along the axial direction of the valve rod (3).
2. The mechanical pipeline gas self-closing valve according to claim 1, wherein the knob (8) comprises a cylinder (12) and a knob cap (13); the upper end of the cylinder (12) is sleeved with a knob lifting cap (13) and is in threaded connection with the knob lifting cap (13); the upper end of the valve rod (3) extends into the cylinder (12); a groove (9) is arranged on the side wall of the cylinder (12).
3. Mechanical pipeline gas self-closing valve according to claim 2, characterized in that the lower end of the groove (9) penetrates the lower end of the cylinder (12).
4. Mechanical pipeline gas self-closing valve according to claim 2, characterized in that the connection assembly comprises a snap ring (14) and a sleeve (15); the sleeve (15) is sleeved on the outer side of the valve rod (3), the upper end of the sleeve extends into the lower end of the cylinder (12) and is in threaded connection with the lower end of the cylinder (12); an annular groove is formed in the side wall of the upper end of the valve rod (3); the clamping ring (14) is arranged inside the annular groove; the indicating block (10) is arranged on the clamping ring (14); the outer diameter of the snap ring (14) is larger than the inner diameter of the sleeve (15).
5. The mechanical pipeline gas self-closing valve according to claim 4, wherein the limiting assembly comprises a limiting cover (17) and a spring (19); the limiting cover (17) is detachably arranged at the upper end of the valve cover (2), and the upper end of the limiting cover penetrates through the arranging hole (18); the cylinder (12) penetrates through the limiting cover (17) from the hole (18); the indicating block (10) and the state mark (11) are positioned above the limit cover (17); a flange (16) is arranged on the outer side wall of the lower end of the sleeve (15); the outer diameter of the flange (16) is greater than the diameter of the bore (18); the spring (19) is arranged between the flange (16) and the upper end of the limit cover (17) along the axial direction of the valve rod (3).
6. The mechanical pipeline gas self-closing valve according to claim 5, wherein the upper end of the valve cover (2) is provided with a fixed ring (20); the lower end of the limiting cover (17) is sleeved at the upper end of the fixed ring (20) and is in threaded connection with the upper end of the fixed ring (20).
7. The mechanical pipeline gas self-closing valve according to claim 5, wherein the status mark (11) is provided in a convex type; the diameter of the hole (18) is greater than the diameter of the cylinder (12) plus twice the length of the status mark (11).
8. The mechanical pipeline gas self-closing valve according to claim 1, characterized in that a group of status marks (11) are respectively arranged above and below the status marks (11); the three groups of state marks (11) are linearly arranged along the axial direction of the valve rod (3), in the three groups of state marks (11), the middle group of state mark (11) is set to be green, and the other two groups of state marks (11) are red.
9. The mechanical pipeline gas self-closing valve according to claim 1, characterized in that a valve body (1) is provided with a valve (21) which is manually opened and closed; the valve (21) is positioned between the air inlet (6) and the air outlet (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122328798.0U CN216200535U (en) | 2021-09-26 | 2021-09-26 | Mechanical pipeline gas self-closing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122328798.0U CN216200535U (en) | 2021-09-26 | 2021-09-26 | Mechanical pipeline gas self-closing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216200535U true CN216200535U (en) | 2022-04-05 |
Family
ID=80923815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122328798.0U Active CN216200535U (en) | 2021-09-26 | 2021-09-26 | Mechanical pipeline gas self-closing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216200535U (en) |
-
2021
- 2021-09-26 CN CN202122328798.0U patent/CN216200535U/en active Active
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