CN101799009A - Unloading valve for pneumatic compressor - Google Patents
Unloading valve for pneumatic compressor Download PDFInfo
- Publication number
- CN101799009A CN101799009A CN201010146413A CN201010146413A CN101799009A CN 101799009 A CN101799009 A CN 101799009A CN 201010146413 A CN201010146413 A CN 201010146413A CN 201010146413 A CN201010146413 A CN 201010146413A CN 101799009 A CN101799009 A CN 101799009A
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- valve
- piston
- pressure
- jacking
- spring
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Abstract
The invention discloses an unloading valve for a pneumatic compressor, which comprises a valve seat. A valve cage is arranged outside the valve seat; the upper end of the valve cage is provided with a valve cap; and the upper part of the valve cap is provided with an air inlet. A piston is arranged in the valve cap; a piston ring is arranged on the piston; the lower end of the piston is provided with a piston return spring; the piston is matched with a bead; a piston push rod is matched with a three-claw jacking device; the lower end of the three-claw jacking device is matched with a valve sheet; and a return spring is arranged inside the three-claw jacking device. The original air valve of a supercharger is improved, and the spring is compressed by utilizing the jacking pressure of air, so that the valve sheet is positioned in a normally open state to form an airflow channel. Therefore, the pressure unloading in the compressor cylinder is realized. When the air inlet pressure is lower than the needed pressure, the jacking air can be closed. Due to the use of the compression force jacking device of the spring, the valve sheet can move in effective stroke. Therefore, the functions of common valves are realized, and normal operation of the supercharger is guaranteed.
Description
Technical field
The present invention relates to a kind of valve that is used for the compresser cylinder unloading pressure.
Background technique
Do not have on the oil trial-production compressor at the CTG rock gas,, can cause damage, pressure-increasing machine can not normally be worked air valve and cylinder because the source of the gas suction pressure instability of cylinder air inlet when suction pressure is excessive, does not have the standard valve of unloading the valve function if adopt.
Summary of the invention
Technical problem of the present invention is that a kind of unloading valve for pneumatic compressor will be provided, it utilizes the jacking pressure pressure spring of gas, the state that valve block is in often open forms current path, thereby realizes the discharge degree in the compresser cylinder, when being lower than, uses when needing pressure suction pressure, can close jacking gas again, utilize the compressive force top return device of spring, valve block can be moved in effective travel, thereby realize the function of common valve seat, make the pressure-increasing machine proper functioning.
The object of the present invention is achieved like this: a kind of unloading valve for pneumatic compressor, comprise valve seat, valve seat is outward a valve cage, and the valve cage upper end is a valve gap, valve gap portion is provided with suction port, the piston setting is in the valve gap, and piston ring is housed on the piston, and the piston lower end is provided with piston reset spring, piston matches with the rim of the mouth, piston push rod matches with the three-jaw jacking mechanism, and matching with valve block in three-jaw jacking mechanism lower end, is provided with return spring in the three-jaw jacking mechanism.The cue mark of piston tip places transparent cover.
Unloading valve for pneumatic compressor provided by the invention, on valve gap, increase a suction port, install a piston apparatus in the middle of the valve gap additional, utilize piston ring and O type circle to seal and lead, make the suction port gas pressure fully stressed, piston is moved in limited stroke in piston end surface, the track bar of piston end just can directly act on the stress surface on unloading valve seat top, thereby the jacking valve block makes it overcome external force and opens, and realizes offloading functions; Lowermost end in piston stroke is provided for piston is carried out spacing rim of the mouth, when the pressure of jacking gas excessive, when spring force can not overcome the pressure of jacking gas fully, the pressure of redundance can be carried in the rim of the mouth, thereby the stroke of control piston is in limited distance, be the working stroke of valve block in valve seat, so can the excessive damage that causes valve block of stroke excessive because of the pressure of jacking gas or piston, guaranteed the proper functioning of feather valve; Piston reset spring and return spring, the lower end of the lower end of piston and feather valve top stress surface in valve gap respectively, when the cylinder intake mouth pressure is lower than the pressure of need of work, close jacking gas, utilize spring force can push up back the three-jaw stressing device of piston and feather valve, make valve block return to normal working position, thereby the pressure-increasing machine cylinder can be worked normally; Valve seat uses the jacking mechanism of three-jaw, and the pressure of the suffered piston thrust bar of the stress surface on valve seat top is evenly distributed on the valve block, makes valve block can not cause damage because of unbalance stress; The transparent cover of the setting on valve gap top and the indicative mark of piston tip can see clearly whether the jacking gas pressure makes the feather valve proper functioning.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is a sectional structure schematic representation of the present invention.
Embodiment
As shown in Figure 1, the present invention includes valve seat 1, is valve cage 2 outside the valve seat 1, and valve cage 2 upper ends are valve gap 3, valve gap 2 tops are provided with suction port 4, piston 5 is provided with and is in the valve gap 3 piston ring 6 to be housed on the piston 5, and piston 5 lower ends are provided with piston reset spring 10, piston 5 matches with rim of the mouth 14, piston push rod 7 matches with three-jaw jacking mechanism 8, and matching with valve block 9 in three-jaw jacking mechanism 8 lower ends, is provided with return spring 11 in the three-jaw jacking mechanism 8.The cue mark 12 on piston 5 tops places transparent cover 13.
Working principle of the present invention is as follows: when cylinder intake pressure during more than or equal to the pressure of need of work, open the switch of jacking gas on the valve gap 3, make gas enter valve gap 3, act on piston end surface, depress piston 5, piston 5 is moved in fixed journey system, piston push rod 7 acts on the top stress surface of feather valve three-jaw jacking mechanism 8, makes three-jaw act on valve block 9, the state that valve block is in often open, form the path of air-flow, to realize the unloading of compresser cylinder.When cylinder intake pressure during less than need of work pressure, close the switch of jacking gas on the valve gap 3, utilize piston reset spring 10 spring forces to push back piston 5, utilize the spring force of return spring 11 to push back three-jaw jacking mechanism 8, make air valve return to normal working position, thereby the pressure-increasing machine cylinder can be worked normally.
Lowermost end in piston stroke is provided for piston 5 is carried out spacing rim of the mouth 14, when the pressure of jacking gas excessive, when piston reset spring 10 can not overcome the pressure of jacking gas fully, the pressure of redundance can be carried in rim of the mouth 14, thereby the stroke of control piston 5 is in limited distance, be the working stroke of valve block 9 in valve seat 1, so can the excessive damage that causes valve block 9 of stroke excessive because of the pressure of jacking gas or piston 5, guaranteed the proper functioning of feather valve.
The cue mark 12 on piston 5 tops adopts red application, places transparent cover 13, can be clear that intuitively whether the jacking gas pressure makes the feather valve proper functioning.
Claims (2)
1. unloading valve for pneumatic compressor, comprise valve seat (1), valve seat (1) is outer to be valve cage (2), valve cage (2) upper end is valve gap (3), it is characterized in that: valve gap (2) top is provided with suction port (4), piston (5) setting is in the valve gap (3), piston ring (6) is housed on the piston (5), piston (5) lower end is provided with piston reset spring (10), piston (5) matches with rim of the mouth (14), piston push rod (7) matches with three-jaw jacking mechanism (8), and matching with valve block (9) in three-jaw jacking mechanism (8) lower end, is provided with return spring (11) in the three-jaw jacking mechanism (8).
2. unloading valve for pneumatic compressor according to claim 1 is characterized in that: the cue mark (12) on piston (5) top places transparent cover (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010146413A CN101799009A (en) | 2010-04-14 | 2010-04-14 | Unloading valve for pneumatic compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010146413A CN101799009A (en) | 2010-04-14 | 2010-04-14 | Unloading valve for pneumatic compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101799009A true CN101799009A (en) | 2010-08-11 |
Family
ID=42594822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010146413A Pending CN101799009A (en) | 2010-04-14 | 2010-04-14 | Unloading valve for pneumatic compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101799009A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777359A (en) * | 2012-08-13 | 2012-11-14 | 浙江盛源空压机制造有限公司 | Combination valve for air compressor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09137777A (en) * | 1995-11-15 | 1997-05-27 | Tokico Ltd | Reciprocating compressor |
| CN2541628Y (en) * | 2002-03-21 | 2003-03-26 | 邱克敏 | Unloading check valve of air compressor |
| CN2795487Y (en) * | 2005-05-13 | 2006-07-12 | 查谦 | Load discharging valve for gas compressor |
| CN2931854Y (en) * | 2006-06-27 | 2007-08-08 | 詹奇峰 | Automatic unloading one-way valve of air compressor |
| CN201377421Y (en) * | 2009-03-25 | 2010-01-06 | 天津凯德实业有限公司 | Unloading valve of pneumatic compressor |
-
2010
- 2010-04-14 CN CN201010146413A patent/CN101799009A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09137777A (en) * | 1995-11-15 | 1997-05-27 | Tokico Ltd | Reciprocating compressor |
| CN2541628Y (en) * | 2002-03-21 | 2003-03-26 | 邱克敏 | Unloading check valve of air compressor |
| CN2795487Y (en) * | 2005-05-13 | 2006-07-12 | 查谦 | Load discharging valve for gas compressor |
| CN2931854Y (en) * | 2006-06-27 | 2007-08-08 | 詹奇峰 | Automatic unloading one-way valve of air compressor |
| CN201377421Y (en) * | 2009-03-25 | 2010-01-06 | 天津凯德实业有限公司 | Unloading valve of pneumatic compressor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777359A (en) * | 2012-08-13 | 2012-11-14 | 浙江盛源空压机制造有限公司 | Combination valve for air compressor |
| CN102777359B (en) * | 2012-08-13 | 2019-11-26 | 浙江盛源空压机制造有限公司 | A kind of combination valve for air compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Deng Changkai Inventor after: Zhang Zhongjia Inventor after: Sun Yan Inventor after: Wang Licheng Inventor before: Zhang Zhongjia Inventor before: Sun Yan Inventor before: Deng Changkai Inventor before: Wang Licheng |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHANG ZHONGJIA SUN YAN DENG CHANGKAI WANG LICHENG TO: DENG CHANGKAI ZHANG ZHONGJIA SUN YAN WANG LICHENG |
|
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Zhongjia Inventor after: Liu Chunsheng Inventor after: Deng Changkai Inventor after: Sun Yan Inventor after: Wang Licheng Inventor before: Deng Changkai Inventor before: Zhang Zhongjia Inventor before: Sun Yan Inventor before: Wang Licheng |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: DENG CHANGKAI ZHANG ZHONGJIA SUN YAN WANG LICHENG TO: ZHANG ZHONGJIA LIU CHUNSHENG DENG CHANGKAI SUN YAN WANG LICHENG |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100811 |