CN103470783B - Vacuum pressure relief valve - Google Patents
Vacuum pressure relief valve Download PDFInfo
- Publication number
- CN103470783B CN103470783B CN201310441454.8A CN201310441454A CN103470783B CN 103470783 B CN103470783 B CN 103470783B CN 201310441454 A CN201310441454 A CN 201310441454A CN 103470783 B CN103470783 B CN 103470783B
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- CN
- China
- Prior art keywords
- spool
- diameter
- pressure relief
- vacuum pressure
- valve body
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Abstract
The present invention relates to a kind of valve body for connecting tank body and vacuum pump, specifically a kind of vacuum pressure relief valve, comprise main valve body, described main valve body inner chamber comprises the upper chamber, the lower cavity that connect with each other, and the diameter of upper chamber is greater than the diameter of lower cavity, upper and lower two cavity joints form shoulder; Valve pocket is provided with in described upper chamber, valve pocket lower end is spacing by shoulder, spool is equipped with in described valve pocket, O type circle is provided with in spool upper recess, spring housing is loaded on spool, and both ends of the spring holds out against under closing in portion, valve pocket upper end and spool on terminal block cap respectively, the diameter of gear cap is greater than the diameter of lower cavity.This vacuum pressure relief valve is adopted to the noise effectively reduced when vacuum pump works, thus can effectively to extend the working life of vacuum pump.
Description
Technical field
The present invention relates to a kind of valve body for connecting tank body and vacuum pump, specifically a kind of vacuum pressure relief valve.
Background technique
At present, usually need to vacuumize tank body in some occasions, common way is directly connected in by vacuum pump on tank body electronic switch to carry out operation, and this Placement is simple, but vacuum pump can be caused operationally to produce larger noise, affect the life-span of vacuum pump.
Summary of the invention
The present invention is directed to the problems referred to above, a kind of vacuum pressure relief valve is provided, adopt this vacuum pressure relief valve to the noise effectively reduced when vacuum pump works, thus can effectively extend the working life of vacuum pump.
According to technological scheme of the present invention: a kind of vacuum pressure relief valve, it is characterized in that: comprise main valve body, described main valve body inner chamber comprises the upper chamber, the lower cavity that connect with each other, and the diameter of upper chamber is greater than the diameter of lower cavity, and upper and lower two cavity joints form shoulder; Valve pocket is provided with in described upper chamber, valve pocket lower end is spacing by shoulder, spool is equipped with in described valve pocket, O type circle is provided with in spool upper recess, spring housing is loaded on spool, and both ends of the spring holds out against under closing in portion, valve pocket upper end and spool on terminal block cap respectively, the diameter of gear cap is greater than the diameter of lower cavity.
As a further improvement on the present invention, upper end, described closing in portion is provided with chamfering, and when spool is descending, O type circle compression fit is in described chamfering.
As a further improvement on the present invention, described main valve body bottom suction port both ends of the surface are set to symmetrical coniform.
As a further improvement on the present invention, described main valve body outer peripheral surface corresponds to shoulder place and is provided with one week radial protrusion.
Technique effect of the present invention is: the present invention adopts full soldering and sealing to connect, compact structure, compact, has the media compatibility of good protection against the tide, anti-corrosion capability and excellence; In use; can effectively reduce pressure difference when vacuum pump runs, thus reduce the noise of vacuum pump, protection vacuum pump is to extend the working life of vacuum pump; under vacuum pump normal working, what a small amount of gas entered by vacuum pressure relief valve can't affect vacuum pump vacuumizes efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described.
In Fig. 1, comprise O type circle 1, spring 2, valve pocket 3, closing in portion 3-1, spool 4, gear cap 4-1, main valve body 5, upper chamber 6, lower cavity 7, shoulder 8, suction port 9, projection 10 etc.
As shown in Figure 1, the present invention is a kind of vacuum pressure relief valve, comprises main valve body 5, and described main valve body 5 inner chamber comprises the upper chamber 6, the lower cavity 7 that connect with each other, and the diameter of upper chamber 6 is greater than the diameter of lower cavity 7, upper and lower two cavity joints form shoulder 8; Valve pocket 3 is provided with in described upper chamber 6, valve pocket 3 lower end is spacing by shoulder 8, spool 4 is equipped with in described valve pocket 3, O type circle 1 is provided with in spool 4 upper recess, spring 2 is set on spool 4, and spring 2 two ends hold out against respectively on valve pocket 3 upper end closing in portion 3-1 and spool 4 times terminal block cap 4-1, the diameter of gear cap 4-1 is greater than the diameter of lower cavity 7.
3-1 upper end, described closing in portion is provided with chamfering, and when spool 4 is descending, O type circle 1 compression fit is in described chamfering.
Described main valve body 5 bottom suction port 9 both ends of the surface are set to symmetrical coniform.
Described main valve body 5 outer peripheral surface corresponds to shoulder 8 place and is provided with one week radial protrusion 10.
Working procedure of the present invention is as follows: in use, and be connected to upper end of the present invention on the tank body that need vacuumize, lower end suction port 9 is connected on vacuum pump, can normally work.When vacuum pump is started working, spool 4 is slowly compressed due to pressure at both sides difference, and spool 4 drives spring 2 to be compressed, O type circle 1 is also along with 4 are pushed, at this moment a small amount of air enters in pipeline, and when vacuum pump operation is to steady state, the air displacement of vacuum pressure relief valve is constant.
The present invention adopts full soldering and sealing to connect, compact structure, compact, has the media compatibility of good protection against the tide, anti-corrosion capability and excellence; In use; can effectively reduce pressure difference when vacuum pump runs, thus reduce the noise of vacuum pump, protection vacuum pump is to extend the working life of vacuum pump; under vacuum pump normal working, what a small amount of gas entered by vacuum pressure relief valve can't affect vacuum pump vacuumizes efficiency.
Claims (4)
1. a vacuum pressure relief valve, it is characterized in that: comprise main valve body (5), described main valve body (5) inner chamber comprises the upper chamber (6), the lower cavity (7) that connect with each other, and the diameter of upper chamber (6) is greater than the diameter of lower cavity (7), upper and lower two cavity joints form shoulder (8); Valve pocket (3) is provided with in described upper chamber (6), valve pocket (3) lower end is spacing by shoulder (8), spool (4) is equipped with in described valve pocket (3), O type circle (1) is provided with in spool (4) upper recess, spring (2) is set on spool (4), and spring (2) two ends hold out against under closing in portion, valve pocket (3) upper end (3-1) and spool (4) on terminal block cap (4-1) respectively, the diameter of gear cap (4-1) is greater than the diameter of lower cavity (7).
2. according to vacuum pressure relief valve according to claim 1, it is characterized in that: described closing in portion (3-1) upper end is provided with chamfering, and when spool (4) is descending, O type circle (1) compression fit is in described chamfering.
3. according to vacuum pressure relief valve according to claim 1, it is characterized in that: described main valve body (5) bottom suction port (9) both ends of the surface are set to symmetrical coniform.
4. according to vacuum pressure relief valve according to claim 1, it is characterized in that: described main valve body (5) outer peripheral surface corresponds to shoulder (8) place and is provided with one week radial protrusion (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310441454.8A CN103470783B (en) | 2013-09-25 | 2013-09-25 | Vacuum pressure relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310441454.8A CN103470783B (en) | 2013-09-25 | 2013-09-25 | Vacuum pressure relief valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103470783A CN103470783A (en) | 2013-12-25 |
| CN103470783B true CN103470783B (en) | 2015-07-29 |
Family
ID=49795763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310441454.8A Active CN103470783B (en) | 2013-09-25 | 2013-09-25 | Vacuum pressure relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103470783B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838393A (en) * | 2017-04-07 | 2017-06-13 | 无锡海德曼医疗设备有限公司 | Adjustable stop valve |
| CN106838388A (en) * | 2017-04-07 | 2017-06-13 | 无锡海德曼医疗设备有限公司 | Fixed pattern stop valve |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2901507A1 (en) * | 1978-01-16 | 1979-07-19 | Bespak Industries Ltd | VALVE |
| JP2004176873A (en) * | 2002-11-28 | 2004-06-24 | Inax Corp | Check valve with leak functions |
| CN2802145Y (en) * | 2005-07-08 | 2006-08-02 | 董乾东 | Noise silencer for water ring type vacuum pump |
| CN201180692Y (en) * | 2008-03-18 | 2009-01-14 | 山东新华医疗器械股份有限公司 | Gas etching noise-elimination apparatus of water-ring vacuum pump |
| CN201250911Y (en) * | 2008-03-31 | 2009-06-03 | 北京首拓汽车滤清器制造有限公司 | Elastic type oil-water separator discharge valve |
| JP2011080571A (en) * | 2009-10-09 | 2011-04-21 | Honda Motor Co Ltd | Check valve |
| CN102330829A (en) * | 2010-07-12 | 2012-01-25 | 蒋介中 | Mute lining check valve |
| CN202326261U (en) * | 2011-11-11 | 2012-07-11 | 中国科学院沈阳科学仪器研制中心有限公司 | Exhaust port structure of scroll vacuum pump |
| CN203500490U (en) * | 2013-09-25 | 2014-03-26 | 无锡海德曼医疗设备有限公司 | Vacuum decompression valve |
-
2013
- 2013-09-25 CN CN201310441454.8A patent/CN103470783B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2901507A1 (en) * | 1978-01-16 | 1979-07-19 | Bespak Industries Ltd | VALVE |
| JP2004176873A (en) * | 2002-11-28 | 2004-06-24 | Inax Corp | Check valve with leak functions |
| CN2802145Y (en) * | 2005-07-08 | 2006-08-02 | 董乾东 | Noise silencer for water ring type vacuum pump |
| CN201180692Y (en) * | 2008-03-18 | 2009-01-14 | 山东新华医疗器械股份有限公司 | Gas etching noise-elimination apparatus of water-ring vacuum pump |
| CN201250911Y (en) * | 2008-03-31 | 2009-06-03 | 北京首拓汽车滤清器制造有限公司 | Elastic type oil-water separator discharge valve |
| JP2011080571A (en) * | 2009-10-09 | 2011-04-21 | Honda Motor Co Ltd | Check valve |
| CN102330829A (en) * | 2010-07-12 | 2012-01-25 | 蒋介中 | Mute lining check valve |
| CN202326261U (en) * | 2011-11-11 | 2012-07-11 | 中国科学院沈阳科学仪器研制中心有限公司 | Exhaust port structure of scroll vacuum pump |
| CN203500490U (en) * | 2013-09-25 | 2014-03-26 | 无锡海德曼医疗设备有限公司 | Vacuum decompression valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103470783A (en) | 2013-12-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Vacuum decompression valve Effective date of registration: 20210610 Granted publication date: 20150729 Pledgee: Ningbo Bank Co.,Ltd. Wuxi Branch Pledgor: WUXI HAIDEMAN MEDICAL EQUIPMENT Co.,Ltd. Registration number: Y2021320010205 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220926 Granted publication date: 20150729 Pledgee: Ningbo Bank Co.,Ltd. Wuxi Branch Pledgor: WUXI HAIDEMAN MEDICAL EQUIPMENT Co.,Ltd. Registration number: Y2021320010205 |