CN206770617U - Pressure-reducing valve - Google Patents
Pressure-reducing valve Download PDFInfo
- Publication number
- CN206770617U CN206770617U CN201720392424.6U CN201720392424U CN206770617U CN 206770617 U CN206770617 U CN 206770617U CN 201720392424 U CN201720392424 U CN 201720392424U CN 206770617 U CN206770617 U CN 206770617U
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- CN
- China
- Prior art keywords
- valve
- bonnet
- valve body
- pressure
- handwheel
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Abstract
The utility model discloses pressure-reducing valve, including valve body, top end of the valve body is connected with locking lid, valve body bottom is connected with bonnet, valve pocket is provided with valve body, the air inlet and exhaust outlet of valve pocket are communicated with valve body, valve element is provided with valve pocket, the first spring is provided between valve element and locking lid, diaphragm is provided between valve body and bonnet, diaphragm is fixed by diaphragm seat, diaphragm seat one end is supported and is located at valve element, the diaphragm seat other end is connected with regulation component, regulation component includes second spring and spring base, set screw is provided between spring base and bonnet, set screw is provided with salient point with spring base contact jaw, so that gap between set screw and spring base be present, handwheel is arranged with outside bonnet, handwheel is inwardly projecting regulating nut, regulating nut is connected with set screw, on bonnet Marking ring is embedded with handwheel phase-contact surface.Pressure-reducing valve of the present utility model, flexible adjustment, be not easy it is stuck, pressure-reducing valve can stable operation, and be easy to recognize gas type.
Description
Technical field
It the utility model is related to valve class technical field, more particularly to pressure-reducing valve.
Background technology
Effectively to store a large amount of gases, will be typically stored in after gas compression in air accumulator, therefore gas pressure in air accumulator
It is higher, up to tens or even hundreds of atmospheric pressure.But gas is smaller using gas pressure needed for equipment, gas transmission thus be present
The problem of device and larger gas equipment gas pressure difference, therefore need effectively to adjust gas pressure, realize that safety is used
Gas, pressure-reducing valve are exactly such a adjusting means.
Existing pressure-reducing valve, generally includes valve body, is fixedly connected on the bonnet of valve body lower portion, is fixedly connected on valve body top
Protecgulum, the interior shaping air inlet of the valve body, gas outlet and valve pocket, air inlet are connected with gas outlet by valve pocket, the valve pocket
Corresponding section is provided with valve element, and the first spring is provided between the valve element and bonnet；Diaphragm, institute are provided between the valve body and protecgulum
State and diaphragm seat is fixed with diaphragm, diaphragm seat is connected by valve rod with valve element, and spring base is fixed with the protecgulum, described
Second spring is provided between diaphragm and spring base；Handwheel is arranged with outside the protecgulum, the handwheel is connected with spring base.
In use, by rotation hand wheel, spring base moves down, and second spring is compressed and gives diaphragm and diaphragm seat one
Individual downward active force, diaphragm seat promote valve element to move down by valve rod, and valve pocket is opened, and is connected between air inlet and gas outlet
It is logical.
But current pressure-reducing valve exists and often occurs stuck phenomenon at handwheel between spring base, cause pressure-reducing valve can not
Normal operation, and the gas type adjusted is not easy to recognize.
The content of the invention
In view of the shortcomings of the prior art and defect, there is provided a kind of pressure-reducing valve, by setting salient point in set screw so that adjust
Gap be present between section screw and spring base, reduce the contact area between set screw and spring base so that set screw
Will not be stuck with spring base, ensure that pressure-reducing valve can stable operation, and be embedded with difference with handwheel phase-contact surface on bonnet
The Marking ring of color, it is easy to distinguish gas type.
To achieve the above object, the utility model provides following technical scheme.
Pressure-reducing valve, including valve body, top end of the valve body are fixedly connected with locking lid, and valve body bottom is fixedly connected with bonnet, valve body
It is interior to be provided with valve pocket, the air inlet and exhaust outlet of valve pocket are communicated with valve body, valve element is provided with valve pocket, between valve element and locking lid
Provided with the first spring, diaphragm is provided between valve body and bonnet, diaphragm is fixed by diaphragm seat, and diaphragm seat one end is supported and is located at valve element,
The diaphragm seat other end is connected with regulation component, and accommodating cavity is provided with bonnet, and regulation component includes supporting being located at diaphragm seat and being located at and held
Put the second spring of intracavitary and to support the spring base of second spring, set screw is provided between spring base and bonnet, adjust
Screw is provided with salient point with spring base contact jaw so that and gap between set screw and spring base be present, handwheel is arranged with outside bonnet,
Handwheel is inwardly projecting regulating nut, and regulating nut is connected with set screw, and mark is embedded with handwheel phase-contact surface on bonnet
Remember ring.
Further, bonnet is externally provided with stopper slot, and handwheel is provided with the limited block being engaged with stopper slot.
Further, the spout hole in valve pocket is communicated with valve element, spout hole is communicated in air inlet by connecting hole.
Further, handwheel and regulating nut are formed in one structure.
Further, handwheel is threadingly attached to bonnet.
Further, valve body and the periphery of bonnet junction are arranged with spelling cap.
Further, O-ring seals are provided between locking lid and valve body.
The beneficial effects of the utility model are：The utility model provides a kind of pressure-reducing valve, has been moved up and down by valve element
The size of effect regulation air-flow, by setting salient point in set screw so that gap between set screw and spring base be present, reduce
Contact area between set screw and spring base so that set screw will not be stuck with spring base, ensure that pressure-reducing valve energy
Enough stable operation.In addition Marking ring is embedded with bonnet with handwheel phase-contact surface, Marking ring carries different colours, subtracted to distinguish
The type of flowing gas in pressure valve.
Brief description of the drawings
Fig. 1 is sectional view of the present utility model.
Fig. 2 is set screw structural representation of the present utility model.
Fig. 3 is valve core structure schematic diagram of the present utility model.
In figure, 1. valve bodies；2. locking lid；3. bonnet；4. valve pocket；5. air inlet；6. exhaust outlet；7. valve element；8. the first bullet
Spring；9. diaphragm；10. diaphragm seat；11. accommodating cavity；12. second spring；13. spring base；14. set screw；15. salient point；16. hand
Wheel；17. regulating nut；18. Marking ring；19. stopper slot；20. limited block；21. spout hole；22. connecting hole；23. spell cap；24.O
Shape sealing ring.
Embodiment
With reference to accompanying drawing to the further explaination of the utility model.
Referring to the pressure-reducing valve shown in Fig. 1 to Fig. 3, including valve body 1, the top of valve body 1, which is threadably secured, is connected with locking lid
2, and O-ring seals 24 are provided between valve body 1 and locking lid 2, to ensure that the sealing of pressure-reducing valve is good, the bottom of valve body 1 is fixed
Bonnet 3 is connected with, valve pocket 4 is provided with valve body 1, the air inlet 5 and exhaust outlet 6 of valve pocket 4 is communicated with valve body 1, is set in valve pocket 4
There is valve element 7, valve element 7 can effectively be realized in the presence of external force and moved up and down, and the first bullet is provided between valve element 7 and locking lid 2
Spring 8, diaphragm 9 being provided between valve body 1 and bonnet 3, diaphragm 9 is fixed by diaphragm seat 10, and the one end of diaphragm seat 10 is supported and is located at valve element 7,
The other end of diaphragm seat 10 is connected with regulation component, is provided with accommodating cavity 11 in bonnet 3, regulation component include supporting be located at diaphragm seat 10 and
Second spring 12 in accommodating cavity 11 and to support the spring base 13 of second spring 12, between spring base 13 and bonnet 3
Provided with set screw 14, set screw 14 is provided with salient point 15 with the contact jaw of spring base 13 so that set screw 14 and spring base 13
Between gap be present, be arranged with handwheel 16 outside bonnet 3, handwheel 16 is threadingly attached to bonnet 3, is easy to handwheel 16 to rotate, hand
Take turns 16 it is inwardly projecting have regulating nut 17, regulating nut 17 is connected with set screw 14, on bonnet 3 with the phase-contact surface of handwheel 16
It is embedded with Marking ring 18.
In use, by rotation hand wheel 16, drive regulating nut 17, set screw 14 and spring base 13 to move up, enter
And compress second spring 12 and give diaphragm 9 and diaphragm seat 10 1 upward active forces, diaphragm seat 10 promotes valve element 7 upward
It is mobile, make to connect ventilation between air inlet 5 and gas outlet, moved up and down to adjust the aperture of valve pocket 4, entered by adjusting spool 7
And adjust the gas pressure of gas outlet.
The utility model by valve element 7 move up and down effectively regulation air-flow size, it is simple and compact for structure, security performance compared with
Height, by setting salient point 15 in set screw 14 so that gap be present between set screw 14 and spring base 13, reduce regulation
Contact area between screw 14 and spring base 13 so that set screw 14 will not be stuck with spring base 13, ensure that pressure-reducing valve
Being capable of stable operation.In addition Marking ring 18 is embedded with bonnet 3 with the phase-contact surface of handwheel 16, Marking ring 18 carries different colours,
Such as red, green, to distinguish the type of flowing gas in pressure-reducing valve, such as oxygen, nitrogen, it is easy to user to understand gas
Type.
The spout hole 21 in valve pocket 4 is communicated with valve element 7, spout hole 21 is communicated in air inlet 5 by connecting hole 22, entered
When ventilation is connected between gas port 5 and gas outlet, some gas enters valve pocket 4 through connecting hole 22, spout hole 21, works as air inlet
When pressure is higher in 5, gas pressure can be larger in valve pocket 4, and then promotes valve element 7 to move down, and reduces and finds aperture, gas outlet goes out
Atmospheric pressure reduces.
Further, bonnet 3 is externally provided with stopper slot 19, and handwheel 16 is provided with the limited block 20 being engaged with stopper slot 19,
Stopper slot 19 coordinates with limited block 20, prevents handwheel 16 from rotating excessively and departing from bonnet 3, handwheel 16 is integrated with regulating nut 17
Molding structure so that pressure-reducing valve is more compact, has widened installing space.Valve body 1 and the periphery of the junction of bonnet 3 are arranged with spelling cap
23, enhance the stress intensity of pressure-reducing valve.
Described above is only better embodiment of the present utility model, therefore all according to described in the utility model patent application range
The equivalent change or modification done of construction, feature and principle, be included in the utility model patent application range.
Claims (7)
1. pressure-reducing valve, including valve body（1）, valve body（1）Top is fixedly connected with locking lid（2）, valve body（1）Bottom is fixedly connected with
Bonnet（3）, valve body（1）It is interior to be provided with valve pocket（4）, valve body（1）On be communicated with valve pocket（4）Air inlet（5）And exhaust outlet（6）,
Valve pocket（4）It is interior to be provided with valve element（7）, valve element（7）With locking lid（2）Between be provided with the first spring（8）, valve body（1）With bonnet（3）It
Between be provided with diaphragm（9）, diaphragm（9）Pass through diaphragm seat（10）It is fixed, diaphragm seat（10）One end is supported and is located at valve element（7）, diaphragm seat
（10）The other end is connected with regulation component, bonnet（3）It is interior to be provided with accommodating cavity（11）, regulation component, which includes supporting, is located at diaphragm seat（10）
And it is located at accommodating cavity（11）Interior second spring（12）With supporting second spring（12）Spring base（13）, its feature exists
In：Spring base（13）With bonnet（3）Between be provided with set screw（14）, set screw（14）With spring base（13）Contact jaw is provided with
Salient point（15）So that set screw（14）With spring base（13）Between gap, bonnet be present（3）It is arranged with handwheel outside（16）, hand
Wheel（16）It is inwardly projecting to have regulating nut（17）, regulating nut（17）It is connected with set screw (14), bonnet（3）Upper and handwheel
（16）Phase-contact surface is embedded with Marking ring（18）.
2. pressure-reducing valve according to claim 1, it is characterised in that：Bonnet（3）It is externally provided with stopper slot（19）, handwheel（16）On
It is provided with and stopper slot（19）The limited block being engaged（20）.
3. pressure-reducing valve according to claim 1, it is characterised in that：Valve element（7）On be communicated with valve pocket（4）Spout hole
（21）, spout hole（21）Pass through connecting hole（22）It is communicated in air inlet（5）.
4. pressure-reducing valve according to claim 1, it is characterised in that：Handwheel（16）With regulating nut（17）Be formed in one knot
Structure.
5. pressure-reducing valve according to claim 1, it is characterised in that：Handwheel（16）It is threadingly attached to bonnet（3）.
6. pressure-reducing valve according to claim 1, it is characterised in that：Valve body（1）With bonnet（3）The periphery of junction is arranged with
Spell cap（23）.
7. pressure-reducing valve according to claim 1, it is characterised in that：Locking lid（2）With valve body（1）Between be provided with O shapes seal
Circle（24）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720392424.6U CN206770617U (en) | 2017-04-14 | 2017-04-14 | Pressure-reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720392424.6U CN206770617U (en) | 2017-04-14 | 2017-04-14 | Pressure-reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206770617U true CN206770617U (en) | 2017-12-19 |
Family
ID=60630756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720392424.6U Active CN206770617U (en) | 2017-04-14 | 2017-04-14 | Pressure-reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206770617U (en) |
-
2017
- 2017-04-14 CN CN201720392424.6U patent/CN206770617U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |