CN206054240U - Minimum pressure valve - Google Patents
Minimum pressure valve Download PDFInfo
- Publication number
- CN206054240U CN206054240U CN201620644074.3U CN201620644074U CN206054240U CN 206054240 U CN206054240 U CN 206054240U CN 201620644074 U CN201620644074 U CN 201620644074U CN 206054240 U CN206054240 U CN 206054240U
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- valve
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- valve pocket
- spring
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Abstract
This utility model is related to a kind of minimum pressure valve, including valve body, valve pocket, piston, set screw, piston spring, valve core spring and Spool assembly, valve body is provided with air inlet and air vent, valve opening is provided between air inlet and air vent in valve body, plunger shaft is provided with valve pocket, piston and set screw are respectively arranged on the two ends in valve pocket inner carrier chamber, piston spring two ends are abutted with piston and set screw respectively, one end of valve pocket is connected with valve body and forms valve pocket, Spool assembly is installed in the valve pocket, one end of Spool assembly is coordinated with valve opening, the other end is abutted with piston elasticity by valve core spring.Using valve body and valve pocket assembling structure, and corresponding Assembly part is arranged according to the assembling structure, reached according to can customer requirement customizing the purpose of Opening pressure and full open pressure.
Description
Technical field
This utility model is related to pneumatics machine part technical field, more particularly to a kind of minimum pressure valve used for air compressor.
Background technology
Minimum pressure valve is the necessary parts of air compressor machine, and the effect of minimum pressure valve is not right immediately after air compressor machine starts
Outer supply, but initially set up the circulating pressure needed for lubricating fluid, it is ensured that the lubrication of compressor, when gas pressure reaches setting
During pressure, minimum pressure valve is just opened, and is outwards supplied, and otherwise minimum pressure valve is closed.Engine oil is by machine
The pressure differential of device itself is carried out, and does not have extra oil pump auxiliary, when machine is in Light Condition, it is still necessary to which certain pressure maintains oil
Circulation, so air intake valve is relatively closed, and minimum pressure valve prevents pressure leakages, so ensures the circulation of lubricating oil.It is minimum
Pressure valve acts primarily as that to set up unit intrinsic pressure, promotes lubrication oil circulation, meets the effect such as operating pressure of easing valve, minimum pressure valve
Also play check valve, prevent compressed air of the unit in unloading operation in air accumulator from flowing backward to air compressor machine.
Referring to a kind of minimum pressure valve used for air compressor disclosed in patent announcement CN203962344U, including valve body, valve element,
Check spring, piston, pressurize spring and set screw, the installation site of its pressurize spring can be adjusted by set screw,
To solve the problems, such as that the control accuracy of the Opening pressure after stiffness factor of pressurize spring and check spring diminishes is reduced.The minimum
The valve body of pressure valve adopts Construction integration, and remaining each part is designed all in accordance with the valve body structure, and product functionality compares
It is single, and client's diversified demand in production process, can not be met.
The content of the invention
The purpose of this utility model is for the deficiencies in the prior art, there is provided a kind of minimum pressure valve used for air compressor, is adopted
With valve body and valve pocket assembling structure, and corresponding Assembly part is arranged according to the assembling structure, reached according to can customer requirement
To customize the purpose of Opening pressure and full open pressure.
To solve the above problems, this utility model provides technical scheme below：
A kind of minimum pressure valve, including valve body, valve pocket, piston, set screw, piston spring, valve core spring and valve element be total
Into valve body is provided with air inlet and air vent, valve body and valve opening is provided between air inlet and air vent, is provided with piston in valve pocket
Chamber, piston and set screw are respectively arranged on the two ends in valve pocket inner carrier chamber, piston spring two ends respectively with piston and set screw
Abut, one end of valve pocket is connected and formed valve pocket with valve body, Spool assembly is installed in the valve pocket, one end of Spool assembly and valve
Hole coordinates, and the other end is abutted with piston elasticity by valve core spring.
Wherein, Spool assembly includes T-valve block, and the end face that the T-valve block is coordinated with valve opening is provided with sealing ring, the T-valve
The other end of block is coordinated with piston grafting.The grafting abutting end of T-valve block and piston is respectively equipped with storage tank, two storage tank structures
Into for placing the containing cavity of valve core spring, the two ends of valve core spring are abutted with the bottom land of two storage tanks respectively.
Further, the first O-ring and guidance tape, valve pocket and valve body spiral shell are provided between the inwall of the outer wall and valve pocket of piston
Stricture of vagina connects, and the second O-ring is provided between valve pocket and valve body.The inwall of valve pocket is provided with the positive stop lug boss coordinated with piston.
Further, set screw is threadedly coupled with valve pocket, and valve pocket is provided with the holding screw for secured adjusted screw.
Beneficial effect：The installation site of this money minimum pressure valve its piston spring can be adjusted by set screw, with
Solve the problems, such as that the control accuracy of the Opening pressure after stiffness factor of piston spring and valve core spring diminishes is reduced；With it is existing
Integral valve body structure is compared, and this utility model adopts the assembling structure of valve body and valve pocket, by improving cutting for valve body internal valve opening
The interfacial agents ratio of area and piston, and improve the elastic force ratio of piston spring and valve core spring, you can it is various according to client
Property demand customizing Opening pressure and full open pressure, the variation production of product can be realized with relatively low manufacturing cost.
Description of the drawings
Fig. 1 is cross section structure diagram of the present utility model.
Description of reference numerals：1 valve body；2 valve pockets；3 pistons；4 set screws；5 piston springs；6 valve core springs；7 valve elements are total
Into；8 first O-rings；9 second O-rings；10 holding screws；11 guidance tapes.
Specific embodiment
With reference to Figure of description and embodiment, specific embodiment of the utility model is described in further detail：
A kind of minimum pressure valve with reference to shown in Fig. 1, including valve body 1, valve pocket 2, piston 3, set screw 4, piston spring
5th, valve core spring 6 and Spool assembly 7, valve body 1 are provided with air inlet and air vent, are set in valve body 1 between air inlet and air vent
There is a valve opening, in valve pocket 2, be provided with plunger shaft, piston 3 and set screw 4 are respectively arranged on the two ends in 2 inner carrier chamber of valve pocket, valve pocket 2
Inwall is provided with the positive stop lug boss coordinated with piston 3, and positive stop lug boss plays range position-limiting action to piston 3, set screw 4 with
Valve pocket 2 is threadedly coupled, and valve pocket 2 is provided with the holding screw 10 for secured adjusted screw 4,5 two ends of piston spring respectively with work
Plug 3 and set screw 4 are abutted, and one end of valve pocket 2 is connected and is formed valve pocket with valve body 1, and Spool assembly 7 is installed in the valve pocket,
One end of Spool assembly 7 is coordinated with valve opening, and the other end is abutted with 3 elasticity of piston by valve core spring 6.
The installation site of this minimum pressure valve its piston spring 5 can be adjusted by set screw 4, to solve to work as piston
The stiffness factor of spring 5 and valve core spring 6 diminish after Opening pressure control accuracy reduce problem；With existing integral type valve
1 structure of body is compared, and this minimum pressure valve adopts the assembling structure of valve body 1 and valve pocket 2, by the section for improving 1 internal valve opening of valve body
The long-pending interfacial agents ratio with piston 3, and the elastic force ratio for improving piston spring 5 and valve core spring 6, you can various according to client
Property demand customizing Opening pressure and full open pressure, the variation production of product can be realized with relatively low manufacturing cost.
Wherein, the first O-ring 8 and guidance tape 11, the first O-ring 8 are provided between the inwall of the outer wall of piston 3 and valve pocket 2
The outside of guidance tape 11 is arranged at, guidance tape 11 is made using politef material, plays slide-and-guide effect to piston 3, with
The abrasion between piston 3 and valve pocket 2 is reduced, valve pocket 2 is threadedly coupled with valve body 1, and the second O-ring is provided between valve pocket 2 and valve body 1
9, the first O-ring 8 and the second O-ring 9 play airtight effect.
Spool assembly 7 includes T-valve block, and the end face that the T-valve block is coordinated with valve opening is provided with sealing ring, the T-valve block
The other end is coordinated with 3 grafting of piston.The grafting abutting end of T-valve block and piston 3 is respectively equipped with storage tank, and two storage tanks are constituted
For placing the containing cavity of valve core spring 6, the two ends of valve core spring 6 are abutted with the bottom land of two storage tanks respectively, on piston 3 also
Offer the weighing apparatus by valve pocket with containing cavity conducting and press hole.
When air compressor machine is started working, gas enters valve body 1 from air inlet, and when air pressure is less than specified pressure, valve element is total
Into 7 under the resilient force of valve core spring 6 and piston spring 5 with valve opening close fit, valve opening close；When air pressure reach it is specified
During pressure, Spool assembly 7 is promoted to move to 3 end of piston, so as to open valve opening.
The above, is only preferred embodiment of the present utility model, and not technical scope of the present utility model is made
Go out any restriction, therefore every any trickle amendment above example made according to technical spirit of the present utility model, equivalent
Change and modification, still fall within the range of the technical solution of the utility model.
Claims (4)
1. a kind of minimum pressure valve, including valve body (1), valve pocket (2), piston (3), set screw (4), piston spring (5), valve element
Spring (6) and Spool assembly (7), it is characterised in that：Valve body (1) is provided with air inlet and air vent, valve body (1) inherence air inlet with
It is provided between air vent in valve opening, valve pocket (2) and is provided with plunger shaft, piston (3) and set screw (4) is respectively arranged in valve pocket (2)
The two ends of plunger shaft, piston spring (5) two ends are abutted with piston (3) and set screw (4) respectively, one end of valve pocket (2) and valve
Body (1) connects and forms valve pocket, and Spool assembly (7) is installed in the valve pocket, and one end and the valve opening of Spool assembly (7) coordinate, separately
One end is abutted with piston (3) elasticity by valve core spring (6)；First is provided between the inwall of the outer wall and valve pocket (2) of piston (3)
O-ring (8) and guidance tape (11), valve pocket (2) are threadedly coupled with valve body (1), are provided with second O-shaped between valve pocket (2) and valve body (1)
Circle (9), the inwall of valve pocket (2) are provided with the positive stop lug boss coordinated with piston (3).
2. minimum pressure valve according to claim 1, it is characterised in that：Spool assembly (7) including T-valve block, the T-valve
The end face that block is coordinated with valve opening is provided with sealing ring, and the other end and piston (3) grafting of the T-valve block coordinate.
3. minimum pressure valve according to claim 2, it is characterised in that：The grafting abutting end of T-valve block and piston (3) point
Storage tank is not provided with, two storage tanks are constituted for placing the containing cavity of valve core spring (6), the two ends difference of valve core spring (6)
Abut with the bottom land of two storage tanks.
4. minimum pressure valve according to claim 1, it is characterised in that：Set screw (4) is threadedly coupled with valve pocket (2),
Valve pocket (2) is provided with the holding screw (10) for secured adjusted screw (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620644074.3U CN206054240U (en) | 2016-06-23 | 2016-06-23 | Minimum pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620644074.3U CN206054240U (en) | 2016-06-23 | 2016-06-23 | Minimum pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206054240U true CN206054240U (en) | 2017-03-29 |
Family
ID=58372248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620644074.3U Expired - Fee Related CN206054240U (en) | 2016-06-23 | 2016-06-23 | Minimum pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206054240U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654702A (en) * | 2017-10-19 | 2018-02-02 | 上海诺科泵业有限公司 | A kind of check valve |
| CN109779885A (en) * | 2019-03-14 | 2019-05-21 | 广州广涡精密科技有限公司 | A kind of air compressor minimum pressure valve |
| CN113898555A (en) * | 2021-09-18 | 2022-01-07 | 东台市顺达工业气体有限公司 | Cubic piston type acetylene compressor |
-
2016
- 2016-06-23 CN CN201620644074.3U patent/CN206054240U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654702A (en) * | 2017-10-19 | 2018-02-02 | 上海诺科泵业有限公司 | A kind of check valve |
| CN107654702B (en) * | 2017-10-19 | 2024-05-17 | 上海诺科泵业有限公司 | One-way valve |
| CN109779885A (en) * | 2019-03-14 | 2019-05-21 | 广州广涡精密科技有限公司 | A kind of air compressor minimum pressure valve |
| CN113898555A (en) * | 2021-09-18 | 2022-01-07 | 东台市顺达工业气体有限公司 | Cubic piston type acetylene compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170329 Termination date: 20200623 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |