CN208764352U - A kind of pneumatic pressure-release valve - Google Patents
A kind of pneumatic pressure-release valve Download PDFInfo
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- CN208764352U CN208764352U CN201821079224.6U CN201821079224U CN208764352U CN 208764352 U CN208764352 U CN 208764352U CN 201821079224 U CN201821079224 U CN 201821079224U CN 208764352 U CN208764352 U CN 208764352U
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- interface channel
- spool
- valve body
- valve
- pressure
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Abstract
The utility model discloses a kind of pneumatic pressure-release valves, including valve body, front cover, rear cover, valve body one end is connected to front cover, the valve body other end is connected to rear cover, valve chamber is equipped in valve body, the enterprising port of valve body and exhaust outlet, the interface channel for being connected to air inlet with exhaust outlet is equipped in valve chamber, diaphragm is equipped between front cover and valve body, pressure regulating cavity is formed between diaphragm and valve body, it is connected between pressure regulating cavity and interface channel by pressure ports, spool is equipped in valve chamber, spool one end periphery is equipped with backstop boss, the spool other end passes through interface channel and offsets with diaphragm, valve core spring is equipped between backstop boss and rear cover, backstop boss offsets under the action of valve core spring with the periphery of interface channel to block interface channel, spool with it is tapered at interface channel cooperation, lifting screw is equipped in front cover, pressure regulation is equipped between lifting screw and diaphragm Spring is connected with the handwheel with lifting screw cooperation on front cover.The utility model has structure simple, the convenient feature of pressure regulation.
Description
Technical field
The utility model relates to pneumatic element technical field, in particular to a kind of pneumatic pressure-release valve.
Background technique
Gas pressure reducer is a kind of orifice size by changing valve seat location, and the flow velocity of medium particle and kinetic energy occurs
Change, causes different pressure drops, thus the pressure for reaching and keeping outlet side different, and make outlet pressure certainly using energy itself
Gas pressure reducer is widely used in gas piping system high pressure air reducing to required low for the dynamic valve for meeting pre-provisioning request
Pressure, to meet the needs of system.
Structure is complicated mostly for existing pressure reducing valve, and when the gas pressure of gas outlet discharge is excessive, pressure reducing valve cannot
Voluntarily adjust.
Summary of the invention
In view of the deficiencies of the prior art and defect, a kind of pneumatic pressure-release valve is provided, has structure simple, pressure regulation is easily special
Point.
To achieve the above object, the utility model provides following technical scheme.
A kind of pneumatic pressure-release valve, including valve body, front cover, rear cover, valve body one end are connected to front cover, and the valve body other end is connected to
Rear cover is equipped with valve chamber in valve body, and valve body is equipped with the air inlet and exhaust outlet be connected to valve chamber, be equipped in valve chamber by air inlet with
The interface channel of exhaust outlet connection, is equipped with diaphragm, pressure regulating cavity, pressure regulating cavity is formed between diaphragm and valve body between front cover and valve body
It is connect between interface channel by pressure ports, spool is equipped in valve chamber, one end periphery that spool closes on air inlet is equipped with only
Boss is kept off, the spool other end passes through interface channel and offsets with diaphragm, and valve core spring is equipped between backstop boss and rear cover, and backstop is convex
Platform offsets under the action of valve core spring with the periphery of interface channel to block interface channel, at spool and interface channel cooperation
It is tapered, it is equipped with lifting screw in front cover, pressure spring is equipped between lifting screw and diaphragm, is connected on front cover and lifting spiral shell
The handwheel of bar cooperation.
Further, the first sealing ring is equipped between rear cover and valve body.
Further, spool, which is pierced by interface channel between interface channel, is equipped with the second sealing ring.
Further, spool, which is pierced by interface channel between interface channel, is equipped with wear ring.
Further, spool bottom is equipped with guide post, after cover and be equipped with the guide groove that cooperates with guide post.
The utility model has the following beneficial effects: the pressure reducing valve of the utility model, in use, gas enters valve through air inlet
Chamber, at this time by rotation handwheel, handwheel pushes lifting screw to move down, and lifting screw is moved down to be offseted by pressure spring and diaphragm,
It pushes diaphragm to move down, offsets when diaphragm moves down with spool, so that spool compression valve core spring be pushed to move down, interface channel is opened
Open, the gas in valve chamber is discharged through interface channel by gas outlet again, spool with it is tapered at interface channel cooperation, pass through control valve
Core moves down distance, and control valve core tapered portion protrudes into the depth in interface channel, so that the aperture of interface channel is controlled, to control out
The flow of port, when gas is discharged through gas outlet, portion gas meeting pressure ports enter pressure regulating cavity, when the gas of gas outlet discharge
When flow is excessive, the gas flow in pressure regulating cavity can also be increased with it, and the gas in pressure regulating cavity will push diaphragm and move up, at this time valve
Core can also move up therewith under the action of valve core spring, and spool tapered portion protrudes into the increasing of the depth in interface channel, interface channel
Aperture reduce so that the gas flow of gas outlet is reduced, to realize the purpose of automatic control gas outlet gas flow.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
In figure, 1. valve bodies；2. front cover；3. rear cover；4. valve chamber；5. air inlet；6. exhaust outlet；7. interface channel；8. diaphragm；
9. pressure regulating cavity；10. pressure ports；11. spool；12. backstop boss；13. valve core spring；14. lifting screw；15. pressure regulation bullet
Spring；16. handwheel；17. the first sealing ring；18. the second sealing ring；19. guide post；20. guide groove；21. wear ring.
Specific embodiment
The utility model is further illustrated in conjunction with attached drawing.
A kind of pneumatic pressure-release valve shown in Figure 1, including valve body 1, front cover 2, rear cover 3,1 one end of valve body are connected to front cover
2,1 other end of valve body is connected to rear cover 3, and the first sealing ring 17 is equipped between rear cover 3 and valve body 1, to guarantee that leakproofness is good, prevents
Only gas leaks, and is equipped with valve chamber 4 in valve body 1, and valve body 1 is equipped with the air inlet 5 and exhaust outlet 6 being connected to valve chamber 4, in valve chamber 4
Equipped with the interface channel 7 for being connected to air inlet 5 with exhaust outlet 6, diaphragm 8, diaphragm 8 and valve body 1 are equipped between front cover 2 and valve body 1
Between be formed with pressure regulating cavity 9, connected between pressure regulating cavity 9 and interface channel 7 by pressure ports 10.
Spool 11 is equipped in valve chamber 4, one end periphery that spool 11 closes on air inlet 5 is equipped with backstop boss 12, and spool 11 is another
One end passes through interface channel 7 and offsets with diaphragm 8, and spool 11 is pierced by interface channel 7 is equipped with the second sealing between interface channel 7
Circle 18, to guarantee that leakproofness is good, prevents gas from leaking, and spool 11 is pierced by interface channel 7 between interface channel 7 equipped with resistance to
Bull ring 21 is prolonged the service life with reducing the abrasion of spool 11 when moving, and spool is equipped between backstop boss 12 and rear cover 3
Spring 13,13 one end of valve core spring, which is supported, is set to backstop boss 12, and 13 other end of valve core spring, which supports, is set to rear cover 3, backstop boss 12
It offsets under the action of valve core spring 13 with the periphery of interface channel 7 to block interface channel 7, spool 11 and interface channel 7
Tapered at cooperation, 11 bottom of spool is equipped with guide post 19, and rear cover 3 is equipped with the guide groove 20 cooperated with guide post 19, spool
11 in the process of moving, is oriented to by guide groove 20 to guide post 19, prevents spool 11 from generating displacement when moving inclined
Difference avoids spool 11 stuck.
It is equipped with lifting screw 14 in front cover 2, pressure spring 15, pressure spring 15 are equipped between lifting screw 14 and diaphragm 8
One end support be set to lifting screw 14,15 other end of pressure spring support be set to diaphragm 8, diaphragm 8 under the action of pressure spring 15 with
Spool 11 offsets, and the handwheel 16 cooperated with lifting screw 14 is connected on front cover 2.
The pressure reducing valve of the utility model, in use, gas enters valve chamber 4 through air inlet 5, at this time by rotating handwheel 16,
Handwheel 16 pushes lifting screw 14 to move down, and lifting screw 14 is moved down to be offseted by pressure spring 15 and diaphragm 8, pushes under diaphragm 8
It moves, offsets when diaphragm 8 moves down with spool 11, moved down so that spool 11 be pushed to compress valve core spring 13, interface channel 7 is opened
Open, the gas in valve chamber 4 is discharged through interface channel 7 by gas outlet again, spool 11 with it is tapered at 7 cooperation of interface channel, pass through
Control valve core 11 moves down distance, and 11 tapered portion of control valve core protrudes into the depth in interface channel 7, to control interface channel 7
Aperture, to control the flow of gas outlet, when gas is discharged through gas outlet, portion gas meeting pressure ports 10 enter pressure regulating cavity 9, when
When the gas flow of gas outlet discharge is excessive, the gas flow in pressure regulating cavity 9 can also be increased with it, the gas meeting in pressure regulating cavity 9
Diaphragm 8 is pushed to move up, spool 11 can also move up therewith under the action of valve core spring 13 at this time, and 11 tapered portion of spool protrudes into connection
Depth in channel 7 increases, and the aperture of interface channel 7 reduces, so that the gas flow of gas outlet is reduced, it is automatic to realize
Control the purpose of gas outlet gas flow.
The above description is only a preferred embodiment of the present invention, therefore all according to described in the utility model patent application range
The equivalent change or modification done of structure, feature and principle, be included in the scope of the utility model patent application.
Claims (5)
1. a kind of pneumatic pressure-release valve, including valve body (1), front cover (2), rear cover (3), valve body (1) one end are connected to front cover (2), valve
Body (1) other end is connected to rear cover (3), is equipped with valve chamber (4) in valve body (1), valve body (1) be equipped be connected to valve chamber (4) into
Port (5) and exhaust outlet (6), valve chamber (4) is interior to be equipped with the interface channel (7) for being connected to air inlet (5) with exhaust outlet (6), spy
Sign is: being equipped with diaphragm (8) between front cover (2) and valve body (1), is formed between diaphragm (8) and valve body (1) pressure regulating cavity (9), adjusts
It is connect between pressure chamber (9) and interface channel (7) by pressure ports (10), is equipped with spool (11) in valve chamber (4), spool (11) faces
One end periphery of nearly air inlet (5) is equipped with backstop boss (12), and spool (11) other end passes through interface channel (7) and diaphragm (8)
It offsets, is equipped with valve core spring (13) between backstop boss (12) and rear cover (3), work of the backstop boss (12) in valve core spring (13)
It is offseted with lower with interface channel (7) peripheries to block interface channel (7), is at spool (11) and interface channel (7) cooperation
Taper, front cover (2) is interior to be equipped with lifting screw (14), is equipped with pressure spring (15) between lifting screw (14) and diaphragm (8), preceding
The handwheel (16) with lifting screw (14) cooperation is connected on lid (2).
2. a kind of pneumatic pressure-release valve according to claim 1, it is characterised in that: be equipped with the between rear cover (3) and valve body (1)
One sealing ring (17).
3. a kind of pneumatic pressure-release valve according to claim 1, it is characterised in that: spool (11) is pierced by interface channel (7)
The second sealing ring (18) are equipped between interface channel (7).
4. a kind of pneumatic pressure-release valve according to claim 1, it is characterised in that: spool (11) is pierced by interface channel (7)
Wear ring (21) are equipped between interface channel (7).
5. a kind of pneumatic pressure-release valve according to claim 1, it is characterised in that: spool (11) bottom is equipped with guide post
(19), rear cover (3) is equipped with the guide groove (20) cooperated with guide post (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821079224.6U CN208764352U (en) | 2018-07-09 | 2018-07-09 | A kind of pneumatic pressure-release valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821079224.6U CN208764352U (en) | 2018-07-09 | 2018-07-09 | A kind of pneumatic pressure-release valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208764352U true CN208764352U (en) | 2019-04-19 |
Family
ID=66128213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821079224.6U Active CN208764352U (en) | 2018-07-09 | 2018-07-09 | A kind of pneumatic pressure-release valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208764352U (en) |
-
2018
- 2018-07-09 CN CN201821079224.6U patent/CN208764352U/en active Active
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| GR01 | Patent grant |