CN204852509U - Gaseous surge damping valve of piston - Google Patents
Gaseous surge damping valve of piston Download PDFInfo
- Publication number
- CN204852509U CN204852509U CN201520484414.6U CN201520484414U CN204852509U CN 204852509 U CN204852509 U CN 204852509U CN 201520484414 U CN201520484414 U CN 201520484414U CN 204852509 U CN204852509 U CN 204852509U
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- China
- Prior art keywords
- piston
- valve body
- air outlet
- gas
- inlet attack
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- Expired - Fee Related
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Abstract
The utility model discloses a gaseous surge damping valve of piston, the valve body and the entry of this surge damping valve connect simple structure, can reduce the processing degree of difficulty and the assembly process of part to improve processing and assembly efficiency, reduction in production cost, have stable performance, characteristics that the reliability is high, its outlet pressure precision is steerable at 0.01MPa to outlet pressure can debug as required and set for, does not need the manual work to adjust in the use, and then effectively avoids the emergence of maloperation.
Description
Technical field
The utility model relates to valve technology field, particularly a kind of gas piston pressure maintaining valve.
Background technique
At present, gas pressure maintaining valve adopts diaphragm type pressure maintaining valve usually, and diaphragm type pressure maintaining valve needs to regularly replace spool, seal spool and diaphragm, causes the use of pressure maintaining valve, maintenance cost higher; Simultaneously, diaphragm type pressure maintaining valve often needs manual tune outlet pressure in use, diaphragm type pressure maintaining valve is caused in use to operate more complicated, and easily occur diaphragm gas leakage or because of misoperation pressure adjusting lever, make the change of pressure maintaining valve exit pressure levels, have influence on the using effect of pressure maintaining valve.
Model utility content
Technical problem to be solved in the utility model is to provide that a kind of structure is simple, pressure-reduced and-regulated precision is high, inlet pressure ranges is wide, and outlet pressure precision is high, the gas piston pressure maintaining valve of long service life.
For solving the problems of the technologies described above, the utility model have employed a kind of gas piston pressure maintaining valve, comprise inlet attack, outlet connection and valve body, described inlet attack and outlet connection are arranged on the two ends, left and right of valve body respectively, are provided with the inner chamber of conducting in described valve body; Piston is provided with in described valve body, described piston comprises the piston body of rod and piston only, described inlet attack, piston and valve body form left chamber at valve body left end, and piston only and valve body form intermediate cavity in valve body, and outlet connection, piston only and valve body form right chamber at valve body right-hand member; Described inlet attack is provided with suction port and the gas-entered passageway of connection, gas-entered passageway is communicated with left chamber, and described outlet connection is provided with air outlet; Be provided with the vent of conducting in the described piston body of rod, vent is communicated with left chamber, and described piston only is provided with air outlet hole, and air outlet hole is communicated with vent; Spring is provided with in described intermediate cavity, described spring acts on valve body and piston only respectively, piston only is pressed on outlet connection, air outlet hole and outlet connection left side is sealed and fits, realize air outlet hole and right chamber and the isolation between air outlet and right chamber; Described valve body is provided with relief opening in intermediate cavity.
Further, described gas-entered passageway is arranged along inlet attack right side circumferencial direction.
Further, described inlet attack right side is provided with sealing gasket.
Further, described air outlet hole is evenly arranged along piston only right side circumferencial direction.
Further, between described inlet attack and body cavity, between outlet connection and body cavity, be provided with seal ring, between the described piston body of rod and body cavity, between piston only and body cavity, be provided with y-type seal ring.
Valve body of the present utility model and inlet attack structure simply, reduce difficulty of processing and the assembly process of part, thus improve processing and efficiency of assembling, reduce cost of production; Its stable performance simultaneously, reliability is high, and outlet pressure precision can be controlled in ± 0.01MPa, and outlet pressure can carry out debugging and setting as required, does not need manually to regulate, avoid the generation of misoperation in using process.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model inlet attack structure right elevation.
Fig. 3 is piston structure right elevation in the utility model.
In figure: 1, inlet attack, 2, valve body, 3, piston, 4, outlet connection, 5, spring, 6, left chamber, 7, intermediate cavity, 8, right chamber, 9, relief opening, 10, gas-entered passageway, 11, suction port, 12, air outlet, 13, the piston body of rod, 14, piston only, 15, vent, 16, air outlet hole, 17, seal ring, 18, y-type seal ring, 19, sealing gasket.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
A kind of gas piston pressure maintaining valve as shown in Figure 1, comprises inlet attack 1, outlet connection 4 and valve body 2, and described inlet attack 1 and outlet connection 4 are arranged on the two ends, left and right of valve body 2 respectively, is provided with the inner chamber of conducting in described valve body 2; Piston 3 is provided with in described valve body 2, described piston 2 comprises the piston body of rod 13 and piston only 14, described inlet attack 1, piston 3 and valve body 2 form left chamber 6 at valve body 2 left end, piston only 14 and valve body 2 form intermediate cavity 7 in valve body, and outlet connection 4, piston only 14 and valve body 2 form right chamber 8 at valve body right-hand member; Described inlet attack 1 is provided with suction port 11 and the gas-entered passageway 10 of connection, gas-entered passageway 10 is communicated with left chamber 6, and described outlet connection 4 is provided with air outlet 12; Be provided with the vent 15 of conducting in the described piston body of rod 13, vent 15 is communicated with left chamber 6, and described piston only 14 is provided with air outlet hole 16, and air outlet hole 16 is communicated with vent 15; Spring 5 is provided with in described intermediate cavity 7, described spring 5 acts on valve body 2 and piston only 14 respectively, piston only 14 is pressed on outlet connection 4, air outlet hole 16 and outlet connection 4 left side are sealed fit, realize air outlet hole 16 and right chamber 8 and the isolation between air outlet 12 and right chamber 8; Described valve body 2 is provided with relief opening 9 in intermediate cavity 7.
In the utility model, the gas-entered passageway 10 of described inlet attack 1 is arranged along inlet attack 1 right side circumferencial direction, and gas-entered passageway 10 is communicated with suction port 11, and gas enters left chamber 6 through suction port 11 and gas-entered passageway 10; Described inlet attack 1 right side is provided with sealing gasket 19.
Air outlet hole 16 on described piston 3 is arranged along piston only 14 right side circumferencial direction, gas in left chamber 6 enters in piston 3 by the vent 15 of the piston body of rod 13, fit because air outlet hole 16 and outlet connection 4 left side seal, now piston 3 is moved to the left under the influence of air pressure, air outlet hole 16 on piston only 14 is separated with outlet connection 4 end face, air outlet hole 16 is communicated with right chamber 8, air outlet 12 is communicated with right chamber 8, gas enters right chamber 8 through the air outlet hole 16 of piston only 14, then discharges from the air outlet 12 of outlet connection 4.
O-ring seals 17 is provided with between described inlet attack 1 and body cavity, O-ring seals 17 is provided with between outlet connection 4 and body cavity, be provided with y-type seal ring 18 between the described piston body of rod 13 and valve body, between piston only 14 and body cavity, be provided with y-type seal ring 18.
Described relief opening 9 is connected with exhaust joint.
Inlet attack, the outlet connection of this pressure maintaining valve are connected with valve body respectively by bolt, and piston is arranged in valve body, and piston only and the piston body of rod coordinate with body cavity respectively to be installed, and exhaust joint is connected with the relief opening on valve body by screw thread.
Below in conjunction with the structure of pressure maintaining valve, be described in detail as follows to the working procedure of this pressure maintaining valve: gas enters from inlet attack, enter in left chamber by the suction port of inlet attack and gas-entered passageway, gas in left chamber enters bottom piston only through vent, piston is under the active force of air pressure, promote piston to left movement, air outlet hole on piston only is separated with outlet connection left side, now air outlet hole and right chamber, air outlet and right chamber, gas enters right chamber through the air outlet hole of piston only, then discharge from the air outlet of outlet connection.Piston is when to left movement, and the gas volume in left chamber reduces, and then can realize the change of outlet pressure; Simultaneously because piston is to left movement, spring stress also gives piston reaction force, offsets a part of gas pressure, makes the movement position of piston relatively fixing, thus realize the effect of voltage stabilizing.
The utility model valve body and inlet attack structure simply, reduce difficulty of processing and the assembly process of part, thus improve processing and efficiency of assembling, reduce cost of production; Its stable performance, reliability is high, and outlet pressure precision can be controlled in ± 0.01MPa, and outlet pressure can carry out debugging and setting as required, does not need manually to regulate, avoid the generation of misoperation in using process.
The utility model is not limited to above-described embodiment; on the basis of technological scheme disclosed in the utility model; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some to some of them technical characteristics to replace and distortion, these are replaced and are out of shape all in protection domain of the present utility model.
Claims (5)
1. a gas piston pressure maintaining valve, comprises inlet attack, outlet connection and valve body, and described inlet attack and outlet connection are arranged on the two ends, left and right of valve body respectively, are provided with the inner chamber of conducting in described valve body; It is characterized in that:
Piston is provided with in described valve body, described piston comprises the piston body of rod and piston only, described inlet attack, piston and valve body form left chamber at valve body left end, and piston only and valve body form intermediate cavity in valve body, and outlet connection, piston only and valve body form right chamber at valve body right-hand member;
Described inlet attack is provided with suction port and the gas-entered passageway of connection, gas-entered passageway is communicated with left chamber, and described outlet connection is provided with air outlet;
Be provided with the vent of conducting in the described piston body of rod, vent is communicated with left chamber, and described piston only is provided with air outlet hole, and air outlet hole is communicated with vent;
Spring is provided with in described intermediate cavity, described spring acts on valve body and piston only respectively, piston only is pressed on outlet connection, air outlet hole and outlet connection left side is sealed and fits, realize air outlet hole and right chamber and the isolation between air outlet and right chamber;
Described valve body is provided with relief opening in intermediate cavity.
2. gas pressure maintaining valve according to claim 1, is characterized in that: described gas-entered passageway is arranged along inlet attack right side circumferencial direction.
3. gas pressure maintaining valve according to claim 1, is characterized in that: described inlet attack right side is provided with sealing gasket.
4. gas pressure maintaining valve according to claim 1, is characterized in that: described air outlet hole is evenly arranged along piston only right side circumferencial direction.
5. gas pressure maintaining valve according to any one of claim 1 to 4, it is characterized in that: between described inlet attack and body cavity, between outlet connection and body cavity, be provided with seal ring, between the described piston body of rod and body cavity, between piston only and body cavity, be provided with y-type seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520484414.6U CN204852509U (en) | 2015-07-08 | 2015-07-08 | Gaseous surge damping valve of piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520484414.6U CN204852509U (en) | 2015-07-08 | 2015-07-08 | Gaseous surge damping valve of piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204852509U true CN204852509U (en) | 2015-12-09 |
Family
ID=54743054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520484414.6U Expired - Fee Related CN204852509U (en) | 2015-07-08 | 2015-07-08 | Gaseous surge damping valve of piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204852509U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797209A (en) * | 2021-01-28 | 2021-05-14 | 浙江元曜阀业有限公司 | Three-stage pressure reducing valve |
-
2015
- 2015-07-08 CN CN201520484414.6U patent/CN204852509U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797209A (en) * | 2021-01-28 | 2021-05-14 | 浙江元曜阀业有限公司 | Three-stage pressure reducing valve |
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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: 20151209 Termination date: 20170708 |