CN203730789U - Minimum pressure valve - Google Patents
Minimum pressure valve Download PDFInfo
- Publication number
- CN203730789U CN203730789U CN201420101878.XU CN201420101878U CN203730789U CN 203730789 U CN203730789 U CN 203730789U CN 201420101878 U CN201420101878 U CN 201420101878U CN 203730789 U CN203730789 U CN 203730789U
- Authority
- CN
- China
- Prior art keywords
- valve
- spring
- minimum pressure
- spool
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000003825 pressing Methods 0.000 claims description 12
- 238000005336 cracking Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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- Safety Valves (AREA)
Abstract
The utility model discloses a minimum pressure valve comprising a lower valve body, a bonnet, a plug, a piston, a valve stem, a spool, a seal ring, a pressure plate, an internal hexagonal screw, a first spring, and a second spring. The lower valve body is connected with the bonnet in a threaded manner. The valve stem is arranged in the piston. The spool sleeves one end of the valve stem. The pressure plate is arranged outside the spool. The internal hexagonal screw penetrates the pressure plate and is connected with one end of the valve stem in a threaded manner. The first spring is arranged in the valve stem and contacts with the internal hexagonal screw. The second spring sleeves the other end of the valve stem. The minimum pressure valve has the advantages that pressure is increased so that the valve is better in pressure resistance and opening pressure is stable.
Description
Technical field
The utility model relates to a kind of pressure valve, particularly relates to a kind of minimum pressure valve.
Background technique
Minimum pressure valve is generally made up of valve body, spool, adjusting nut, spring, seal element etc., minimum pressure valve has following effect: one, the effect of minimum pressure valve is to cushion, when machine is loading moment, we are discharged in atmosphere hypothesis, before machine intimate separates with separate after the large pressure reduction that produces will all be added on separator, cause the injury to separator core.Two, lubricant is lubricated is to be undertaken by the pressure difference of machine itself, does not have extra oil pump auxiliary, when machine is during at unloaded state, still need certain pressure to maintain oil circulation, so air intake valve is closed relatively, and minimum pressure valve prevents pressure leakage, ensure like this lubrication oil circulation.Three, minimum pressure valve mainly rises to set up in unit and presses, and impels lubrication oil circulation, meets the effect such as working pressure of easing valve.Four, minimum pressure valve also plays one-way valve, prevents that unit pressurized air in gas holder in the time of unloading operation from flowing backward to air compressor.The pressure of existing minimum pressure valve is little, and cracking pressure is unstable.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of minimum pressure valve, and it improves pressure, more withstand voltage like this, and cracking pressure is stable.
The utility model solves above-mentioned technical problem by following technical proposals: a kind of minimum pressure valve, it is characterized in that, it comprises lower valve body, valve gap, plug, piston, valve rod, spool, seal ring, pressing plate, hexagon socket head cap screw, the first spring, the second spring, lower valve body and valve gap are threaded, valve rod is positioned at piston, valve core housing is on one end of valve rod, pressing plate is positioned at the outside of spool, hexagon socket head cap screw is connected with the threaded one end of valve rod through after pressing plate, the first spring is positioned at valve rod and contacts with hexagon socket head cap screw, the second spring housing is on the other end of valve rod.
Preferably, described valve rod, spool, seal ring, pressing plate, hexagon socket head cap screw form a Spool assembly.
Preferably, the bottom of described lower valve body is provided with an O type circle, is provided with the 2nd O type circle between lower valve body and piston.
Preferably, between described lower valve body and piston, be provided with the first guidance tape and the second guidance tape.
Positive progressive effect of the present utility model is: the utility model minimum pressure valve improves pressure, more withstand voltage like this, and cracking pressure is stable, and good airproof performance, Leakage prevention, and the pressure loss is little.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model minimum pressure valve.
Embodiment
Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.
As shown in Figure 1, the utility model minimum pressure valve comprises lower valve body 1, valve gap 2, plug 3, piston 4, valve rod 5, spool 6, seal ring 7, pressing plate 8, hexagon socket head cap screw 9, the first spring 10, the second spring 11, lower valve body 1 and valve gap 2 are threaded, valve rod 5 is positioned at piston 4, spool 6 is enclosed within on one end of valve rod 5, pressing plate 8 is positioned at the outside of spool 6, hexagon socket head cap screw 9 is connected with the threaded one end of valve rod 5 through pressing plate 8 is rear, the first spring 10 is positioned at valve rod 5 and contacts with hexagon socket head cap screw 9, and the second spring 11 is enclosed within on the other end of valve rod 5.
Valve rod 5, spool 6, seal ring 7, pressing plate 8, hexagon socket head cap screw 9 form a Spool assembly.The bottom of lower valve body 1 is provided with an O type circle 12, is provided with the 2nd O type circle 13, good airproof performance like this, Leakage prevention between lower valve body 1 and piston 4.Between lower valve body 1 and piston 4, be provided with the first guidance tape 14 and the second guidance tape 15, convenient like this guiding.
The utility model minimum pressure valve improves pressure, more withstand voltage like this, and cracking pressure is stable, and good airproof performance, Leakage prevention, and the pressure loss is little.
Above-described specific embodiment; technical problem, technological scheme and beneficial effect to solution of the present utility model further describe; institute is understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment of making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. a minimum pressure valve, it is characterized in that, it comprises lower valve body, valve gap, plug, piston, valve rod, spool, seal ring, pressing plate, hexagon socket head cap screw, the first spring, the second spring, lower valve body and valve gap are threaded, and valve rod is positioned at piston, and valve core housing is on one end of valve rod, pressing plate is positioned at the outside of spool, hexagon socket head cap screw is connected with the threaded one end of valve rod through after pressing plate, and the first spring is positioned at valve rod and contacts with hexagon socket head cap screw, and the second spring housing is on the other end of valve rod.
2. minimum pressure valve as claimed in claim 1, is characterized in that, described valve rod, spool, seal ring, pressing plate, hexagon socket head cap screw form a Spool assembly.
3. minimum pressure valve as claimed in claim 1, is characterized in that, the bottom of described lower valve body is provided with an O type circle, is provided with the 2nd O type circle between lower valve body and piston.
4. minimum pressure valve as claimed in claim 1, is characterized in that, is provided with the first guidance tape and the second guidance tape between described lower valve body and piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420101878.XU CN203730789U (en) | 2014-03-02 | 2014-03-02 | Minimum pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420101878.XU CN203730789U (en) | 2014-03-02 | 2014-03-02 | Minimum pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203730789U true CN203730789U (en) | 2014-07-23 |
Family
ID=51200864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420101878.XU Expired - Fee Related CN203730789U (en) | 2014-03-02 | 2014-03-02 | Minimum pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203730789U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2014
- 2014-03-02 CN CN201420101878.XU patent/CN203730789U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: FENGHUA EAGURT MACHINERY MANUFACTURE CO., LTD. Free format text: FORMER OWNER: HE DONG Effective date: 20141224 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20141224 Address after: 315502 Zhejiang province Fenghua Xikou Zhen Gong Tang Industrial Park yigete Machinery Manufacturing Co., Ltd. Patentee after: FENGHUA EAGURT MACHINERY MANUFACTURE CO., LTD. Address before: 315502 Zhejiang province Fenghua Xikou Zhen Gong Tang Industrial Park yigete Machinery Manufacturing Co., Ltd. Patentee before: He Dong |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20200302 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |