CN208816758U - Pressure adjustable safety valve - Google Patents
Pressure adjustable safety valve Download PDFInfo
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- CN208816758U CN208816758U CN201821574807.6U CN201821574807U CN208816758U CN 208816758 U CN208816758 U CN 208816758U CN 201821574807 U CN201821574807 U CN 201821574807U CN 208816758 U CN208816758 U CN 208816758U
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- pressure spring
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Abstract
The utility model relates to a kind of pressure adjustable safety valves, including valve body, valve deck, valve bonnet seal is arranged on valve body, sealed set has diaphragm unit between valve deck and valve body, the pressure regulating mechanism matched with diaphragm unit is provided on valve deck, pressure regulating mechanism includes the handwheel being arranged on the upper end of valve deck, button handsetting on handwheel is set, the screw press being linked with button handsetting, look nut on screw press is set, pressure spring, the upper end of pressure spring contradicts on look nut, the lower end of look nut contradicts on the upper surface of diaphragm unit, valve chamber is formed between diaphragm unit and valve body, the air inlet being connected with valve chamber is respectively set on the two sides of valve body, gas outlet, and it is corresponded in valve chamber and is provided with valve core case between air inlet and gas outlet, valve core case and valve seal cooperate, and valve core case is upper End contradicts on the lower end surface of diaphragm unit.The utility model has the advantages that structure is simple, stable and reliable for performance, operation is convenient.
Description
Technical field
The utility model relates to pneumatic element technical fields, and in particular to a kind of pressure adjustable safety valve.
Background technique
Currently, safety valve is that opening and closing element is in normally off, the pressure medium in equipment or pipeline under by external force
Increase when being more than specified value, by outside system discharge medium come to prevent pressure medium in pipeline or equipment be more than specified value
Special valve.Safety valve belongs to automatic valve class, is mainly used for boiler, on pressure vessels and pipes, and control pressure is no more than regulation
Value, has run important protective effect to personal safety and equipment.Existing safety valve does not have pressure adjustable function, thus the peace
The narrow scope of application of full valve is unable to satisfy the use demand of client.And there is also structure is complicated, performance is unreliable for the safety valve
Defect.
Summary of the invention
The purpose of the utility model is to overcome the defect of the prior art, provide a kind of structure it is simple, it is stable and reliable for performance,
Operate convenient and fast pressure adjustable safety valve.
To achieve the above object, the utility model uses a kind of pressure adjustable safety valve, including valve body, valve deck, described
Valve bonnet seal is arranged on valve body, and sealed set has diaphragm unit between valve deck and valve body, is provided on the valve deck and film
The pressure regulating mechanism that piece component matches, the pressure regulating mechanism include the handwheel being arranged on the upper end of valve deck, set
Set the button handsetting on handwheel, the screw press being linked with button handsetting, the look nut being arranged on screw press, pressure regulation
The upper end of spring, the pressure spring contradicts on look nut, and the lower end of look nut is contradicted in the upper end of diaphragm unit
On face, it is formed with valve chamber between the diaphragm unit and valve body, is respectively set on the two sides of the valve body and is connected with valve chamber
Logical air inlet, gas outlet, and corresponded in valve chamber and be provided with valve core case between air inlet and gas outlet, valve core case is close with valve body
Envelope cooperation, and the upper end of valve core case contradicts on the lower end surface of diaphragm unit.
The beneficial effect of above structure is: pressure regulating mechanism is provided on the valve deck of the safety valve, thus operator
The pressure value of the safety valve can be adjusted on demand, and in operation, operator rotates button handsetting, and button handsetting drives adjusting screw rod dynamic
Make, the compressible pressure spring of adjusting nut on adjusting screw rod, so that pressure spring can adjust the pressure value of diaphragm unit
Section, so that the adjusting of the pressure value of the safety valve is realized, and screw press is threadedly coupled cooperation with look nut, to can realize
Look nut is finely adjusted pressure spring, is conducive to the pressure degree of regulation for improving the safety valve.To which the safety valve has
Simple, stable and reliable for performance, operation the is convenient advantage of structure.
Particularly, the diaphragm unit include diaphragm support, the diaphragm that is arranged on the lower end surface of diaphragm support, it is described
Diaphragm and valve deck between be provided with diaphragm washer, and the lower end surface of diaphragm contradicts on valve core case, the diaphragm support
Upper surface contradicts on pressure spring.Diaphragm is arranged on diaphragm support, and diaphragm support plays a supporting role to diaphragm, is conducive to
The service life for extending diaphragm improves the reliability of safety valve work.
Particularly, the annular groove matched with pressure spring is provided on the upper surface of the diaphragm support, it is described
The lower end of pressure spring contradicts the clamping engagement in a ring groove and constituting pressure spring and diaphragm support.Pressure spring and diaphragm
Pallet is connected using snap-fit, convenient for the assembly of diaphragm support and pressure spring, is conducive to improve pressure spring and film
The reliability being driven between tablet tray.
Detailed description of the invention
Fig. 1 is the utility model embodiment structural schematic diagram.
Specific embodiment
As shown in Figure 1, the utility model embodiment is a kind of pressure adjustable safety valve, including valve body 10, valve deck 11, it is described
Valve deck 11 be sealingly disposed on valve body 10, sealed set has diaphragm unit 20, the valve deck between valve deck 11 and valve body 10
The pressure regulating mechanism 30 matched with diaphragm unit 20 is provided on 11, the pressure regulating mechanism 30 includes being arranged in valve
Handwheel 31 on the upper end of lid 11, the button handsetting 32 being arranged on handwheel 31, the screw press 33 being linked with button handsetting 32,
Look nut 34, pressure spring 35 on screw press 33 are set, and the upper end of the pressure spring 35 is contradicted in pressure regulation spiral shell
On mother 34, the lower end of look nut 34 is contradicted on the upper surface of diaphragm unit 20, the diaphragm unit 20 and valve body 10 it
Between be formed with valve chamber 100, the air inlet 101 being connected with valve chamber 100, gas outlet are respectively set on the two sides of the valve body 10
102, and corresponded in valve chamber 100 and be provided with valve core case 12, valve core case 12 and valve body 10 between air inlet 101 and gas outlet 102
Sealing cooperation, and the upper end of valve core case 12 contradicts on the lower end surface of diaphragm unit 20.The diaphragm unit 20 includes diaphragm
Pallet 21, the diaphragm 22 being arranged on the lower end surface of diaphragm support 21 are provided with diaphragm between the diaphragm 22 and valve deck 11
Washer 23, and the lower end surface of diaphragm 22 contradicts on valve core case 12, the upper surface of the diaphragm support 21 is contradicted in pressure regulation bullet
On spring 35.Diaphragm is arranged on diaphragm support, and diaphragm support plays a supporting role to diaphragm, and be conducive to extend diaphragm uses the longevity
Life improves the reliability of safety valve work.It is provided on the upper surface of the diaphragm support 21 and 35 phase of pressure spring
The annular groove 211 of cooperation, the lower end of the pressure spring 35 contradict in annular groove 211 and constitute pressure spring 35 and diaphragm
The clamping engagement of pallet 21.Pressure spring is connect with diaphragm support using snap-fit, convenient for diaphragm support and pressure regulation bullet
The assembly of spring is conducive to improve the reliability being driven between pressure spring and diaphragm support.
It is provided with pressure regulating mechanism on the valve deck of the safety valve, so that operator can adjust the pressure of the safety valve on demand
Force value, in operation, operator rotate button handsetting, and button handsetting drives adjusting screw rod movement, the adjusting nut on adjusting screw rod
Compressible pressure spring, so that the pressure value of diaphragm unit can be adjusted in pressure spring, to realize the pressure of the safety valve
The adjusting of force value, and screw press is threadedly coupled cooperation with look nut, to can realize that look nut carries out pressure spring
Fine tuning, is conducive to the pressure degree of regulation for improving the safety valve.To the safety valve have structure it is simple, it is stable and reliable for performance,
Operate convenient advantage.
Claims (3)
1. a kind of pressure adjustable safety valve, including valve body, valve deck, it is characterised in that: the valve bonnet seal is arranged on valve body,
Sealed set has diaphragm unit between valve deck and valve body, and the pressure matched with diaphragm unit is provided on the valve deck and is adjusted
Mechanism, the pressure regulating mechanism include the handwheel being arranged on the upper end of valve deck, the button handsetting being arranged on handwheel and dial
Screw press that dynamic button is linked, look nut, the pressure spring being arranged on screw press, the pressure spring it is upper
End contradicts on look nut, and the lower end of look nut contradicts the diaphragm unit and valve on the upper surface of diaphragm unit
It is formed with valve chamber between body, the air inlet being connected with valve chamber, gas outlet, and valve chamber are respectively set on the two sides of the valve body
Valve core case is provided between interior corresponding air inlet and gas outlet, valve core case and valve seal cooperate, and the upper end of valve core case is supported
Touching is on the lower end surface of diaphragm unit.
2. pressure adjustable safety valve according to claim 1, it is characterised in that: the diaphragm unit includes diaphragm support
Disk, the diaphragm being arranged on the lower end surface of diaphragm support, are provided with diaphragm washer between the diaphragm and valve deck, and diaphragm
Lower end surface contradicts on valve core case, and the upper surface of the diaphragm support contradicts on pressure spring.
3. pressure adjustable safety valve according to claim 2, it is characterised in that: set on the upper surface of the diaphragm support
It is equipped with the annular groove matched with pressure spring, the lower end of the pressure spring contradicts in a ring groove and constitutes pressure spring
With the clamping engagement of diaphragm support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821574807.6U CN208816758U (en) | 2018-09-26 | 2018-09-26 | Pressure adjustable safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821574807.6U CN208816758U (en) | 2018-09-26 | 2018-09-26 | Pressure adjustable safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208816758U true CN208816758U (en) | 2019-05-03 |
Family
ID=66278502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821574807.6U Active CN208816758U (en) | 2018-09-26 | 2018-09-26 | Pressure adjustable safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208816758U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058535A (en) * | 2018-09-26 | 2018-12-21 | 百灵气动科技有限公司 | Pressure adjustable safety valve |
-
2018
- 2018-09-26 CN CN201821574807.6U patent/CN208816758U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058535A (en) * | 2018-09-26 | 2018-12-21 | 百灵气动科技有限公司 | Pressure adjustable safety valve |
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