CN203549080U - Quantitative pneumatic valve - Google Patents
Quantitative pneumatic valve Download PDFInfo
- Publication number
- CN203549080U CN203549080U CN201320730295.9U CN201320730295U CN203549080U CN 203549080 U CN203549080 U CN 203549080U CN 201320730295 U CN201320730295 U CN 201320730295U CN 203549080 U CN203549080 U CN 203549080U
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- China
- Prior art keywords
- cavity
- valve
- spring
- pneumatic valve
- rod
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- Expired - Fee Related
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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
A quantitative pneumatic valve comprises a valve body and a valve cover. The valve body comprises a middle body, the two ends of the middle body are connected with a connector body and a middle nut respectively to form a cavity I and a cavity II respectively, an air inlet is formed in the connector body to be communicated with the cavity I and an air source, and an exhaust hole is formed in the middle nut and is communicated with the cavity II. A guide hole is formed in the middle body, a guide rod penetrates through the guide hole, a valve element and a spring I are arranged on the rod body, arranged in the cavity I, of the guide rod, and the spring I is arranged between the valve element and the inner wall of the connector body. A spring II is arranged on the rod body, arranged in the cavity II, of the guide rod, a piston is further arranged in the cavity II, and the piston penetrates through the middle nut and the valve cover arranged at the end of the middle nut.
Description
Technical field
The utility model belongs to hydrodynamic pressure pipeline technical field, relates to a kind of quantitative pneumatic valve.
Background technique
In hydrodynamic pressure pipeline, relate to gasometry supply technology.Existing gasometry supplier system is huge, complex structure, and a filling weight is larger, is difficult to the demand of applicable less filling weight.
Model utility content
The purpose of this utility model is to provide a kind of quantitative pneumatic valve, solves the complex structure that prior art exists, the problem that system is huge.
The technical solution of the utility model is, quantitative pneumatic valve, comprise valve body and valve gap, valve body comprises intermediate, the two ends of intermediate are connected with intermediate nut with fittings body respectively and form respectively cavity I and cavity II, fittings body is provided with inlet hole and is communicated with cavity I and source of the gas, and intermediate nut is provided with exhaust port and is communicated with cavity II; In intermediate, be provided with pilot hole and wear guide rod by pilot hole, the body of rod that guide rod is placed in cavity I is provided with spool and spring I, and spring I is arranged between spool and fittings body inwall; The body of rod that guide rod is placed in cavity II is provided with spring II, is also provided with piston in cavity II, and piston rod is through intermediate nut and the valve gap that is located at intermediate nut end.
Feature of the present utility model is also:
The two ends of intermediate are hollow shape, and one end and fittings body are connected to form cavity I, and the other end and intermediate nut are connected to form cavity II.
Between guide rod and intermediate, be provided with gas guide groove.
The two ends of spring I are connected with fittings body inwall with spool respectively.
The two ends of spring II are connected with piston with intermediate respectively.
The termination of piston rod is connected with motor or is provided with handle.
Spool is cone table shape and is structure as a whole with guide rod.
Between intermediate and piston rod, valve gap, be provided with seal ring,
Valve gap, intermediate nut, intermediate, fittings body are threaded connection successively.
The utlity model has following beneficial effect:
1, piston of the present utility model, guide rod coordinate with elastic device, have realized equal-volume exhausting air, can be used in the device and system that quantitatively fill gas of the less filling weights of needs such as cylinder filling and popgun.
2, the utility model can be electronic, also can be manual, and easy to use, dismounting is easily.
3, the utility model is simple and compact for structure, reliable and stable, long service life.
Accompanying drawing explanation
Fig. 1 is the utility model exhaust condition schematic diagram;
Fig. 2 is the utility model air-suction state schematic diagram;
In figure, 1. piston rod, 2. valve gap, 3. seal ring, 4. intermediate nut, 5. piston, 6. guide rod, 7. spring II, 8. intermediate, 9. spool, 10. spring I, 11. fittings bodies.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
Quantitative pneumatic valve, referring to Fig. 1, Fig. 2, comprise valve body and valve gap 2, valve body comprises intermediate 8, the two ends of intermediate 8 are hollow shape, and one end and fittings body 11 are connected to form cavity I, and the other end and intermediate nut 4 are connected to form cavity II, fittings body 11 is provided with inlet hole A and is communicated with cavity I and source of the gas, and intermediate nut 4 is provided with exhaust port B and is communicated with cavity II; In intermediate 8, be provided with pilot hole and wear guide rod 6 by pilot hole, the body of rod that guide rod 6 is placed in cavity I is provided with spool 9 and spring I 10, and spring I 10 is arranged between spool 9 and fittings body 11 inwalls; The body of rod that guide rod 6 is placed in cavity II is provided with spring II 7, is also provided with piston 5 in cavity II, and piston rod 1 is through intermediate nut 4 and the valve gap 2 that is located at intermediate nut 4 ends.
Between guide rod 6 and intermediate 8, be provided with gas guide groove.
The two ends of spring I 10 are connected with fittings body 1 inwall with spool 9 respectively.
The two ends of spring II 7 are connected with piston 5 with intermediate 8 respectively.
The termination of piston rod 1 is connected with motor or is provided with handle.
Spool 9 is cone table shape and is structure as a whole with guide rod 6.
Between intermediate 8 and piston rod 1, valve gap 2, be provided with seal ring 3,
Valve gap 2, intermediate nut 4, intermediate 8, fittings body 11 are threaded connection successively.
The flow direction of gas is entered by inlet hole A, from exhaust port B, discharges.Inlet hole A connects source of the gas, and when spool is positioned at position shown in Fig. 1, inlet hole A, exhaust port B are intercepted by spool 2, and valve is in closed condition.While pressing the handle on piston rod, handle moves together with piston 5, and opens spool 9, and spool 9 is positioned at position shown in Fig. 2, and pressurized air is by entering left cavity.If release handle now, first spool 9 can close, and piston 5 returns to Fig. 1 position, and the pressurized air in left cavity is discharged by exhaust port B.Because left cavity volume is certain, therefore, the every action of spool 9 once, will provide a certain amount of pressurized air to exhaust port B.
During work, promote piston rod 1, make piston 5 contact guide rods 6, and promote guide rod 6 and open spool 9, gas in cavity I enters cavity II by gas guide groove, at this moment, unclamp piston 1 bar, spool 9 resets under the effect of spring I 10, separate source of the gas and cavity II, piston 5 resets under 7 effects of spring II, and gas is discharged from exhaust port, realizes equal-volume exhausting air.
Claims (8)
1. quantitative pneumatic valve, it is characterized in that: comprise valve body and valve gap (2), described valve body comprises intermediate (8), the two ends of described intermediate (8) are connected with intermediate nut (4) with fittings body (11) respectively and form respectively cavity I and cavity II, described fittings body (11) is provided with inlet hole and is communicated with cavity I and source of the gas, and described intermediate nut (4) is provided with exhaust port and is communicated with cavity II; In described intermediate (8), be provided with pilot hole and wear guide rod (6) by pilot hole, the body of rod that described guide rod (6) is placed in cavity I is provided with spool (9) and spring I (10), and described spring I (10) is arranged between spool (9) and fittings body (11) inwall; The body of rod that described guide rod (6) is placed in cavity II is provided with spring II (7), is also provided with piston (5) in described cavity II, and piston rod (1) passes intermediate nut (4) and is located at the valve gap (2) of intermediate nut (4) end.
2. the quantitative pneumatic valve as shown in claim 1, is characterized in that: the two ends of described intermediate (8) are hollow shape, and one end and fittings body (11) are connected to form cavity I, and the other end and intermediate nut (4) are connected to form cavity II.
3. the quantitative pneumatic valve as shown in claim 1 or 2, is characterized in that: between described guide rod (6) and intermediate (8), be provided with gas guide groove.
4. the quantitative pneumatic valve as shown in claim 3, is characterized in that: the two ends of described spring I (10) are connected with fittings body (11) inwall with spool (9) respectively, and the two ends of described spring II (7) are connected with piston (5) with intermediate (8) respectively.
5. the quantitative pneumatic valve as shown in claim 4, is characterized in that: the termination of described piston rod (1) is connected with motor or is provided with handle.
6. the quantitative pneumatic valve as shown in claim 5, is characterized in that: described spool (9) is cone table shape and is structure as a whole with guide rod (6).
7. the quantitative pneumatic valve as shown in claim 6, is characterized in that: between described intermediate (8) and piston rod (1), valve gap (2), be provided with seal ring (3).
8. the quantitative pneumatic valve as shown in claim 7, is characterized in that: described valve gap (2), intermediate nut (4), intermediate (8), fittings body (11) are threaded connection successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320730295.9U CN203549080U (en) | 2013-11-15 | 2013-11-15 | Quantitative pneumatic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320730295.9U CN203549080U (en) | 2013-11-15 | 2013-11-15 | Quantitative pneumatic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203549080U true CN203549080U (en) | 2014-04-16 |
Family
ID=50467198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320730295.9U Expired - Fee Related CN203549080U (en) | 2013-11-15 | 2013-11-15 | Quantitative pneumatic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203549080U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439465A (en) * | 2016-11-18 | 2017-02-22 | 上海金兆节能科技有限公司 | Precise pneumatic control device of micro lubricating system |
| TWI694219B (en) * | 2018-12-14 | 2020-05-21 | 國家中山科學研究院 | Gas packer |
-
2013
- 2013-11-15 CN CN201320730295.9U patent/CN203549080U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439465A (en) * | 2016-11-18 | 2017-02-22 | 上海金兆节能科技有限公司 | Precise pneumatic control device of micro lubricating system |
| CN106439465B (en) * | 2016-11-18 | 2018-03-13 | 上海金兆节能科技有限公司 | Lubricating system with trace amount precise pneumatic control device |
| TWI694219B (en) * | 2018-12-14 | 2020-05-21 | 國家中山科學研究院 | Gas packer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20151115 |
|
| EXPY | Termination of patent right or utility model |