CN201236974Y - Non-return valve - Google Patents
Non-return valve Download PDFInfo
- Publication number
- CN201236974Y CN201236974Y CNU2008201218884U CN200820121888U CN201236974Y CN 201236974 Y CN201236974 Y CN 201236974Y CN U2008201218884 U CNU2008201218884 U CN U2008201218884U CN 200820121888 U CN200820121888 U CN 200820121888U CN 201236974 Y CN201236974 Y CN 201236974Y
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- Prior art keywords
- valve body
- cavity
- center hole
- hole
- suction port
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- Expired - Fee Related
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Abstract
The utility model discloses a one-way valve which comprises a valve body (2), a valve core (3), a spring (4), a spring seat (5) and an adjusting screw plug (6), wherein, the center hole of the valve body (2) is a step hole, a cavity is formed in the step hole, an air outlet opening perpendicular to the axial line is formed at the cavity, a center hole of a valve body (2) on one side of the cavity is an air inlet opening, the diameter of the air inlet opening is less than that of a valve body (2) on the other side of the cavity, the valve core (3), the spring (4), the spring seat (5) and the adjusting screw plug (6) are matched in the center hole (2) on the other side of the cavity in sequence, and both the surface of the valve core (3) adjacent to one end of the air inlet opening and the junction surface between the air inlet opening in the center hole of the valve body (2) and the cavity are conical surface structures. Compared with the prior art, due to the adoption of the hard sealing form, the utility model has the characteristics of abrasion resistance, corrosion resistance, long service life, high-temperature and high-pressure resistance and high opening-closing rate.
Description
Technical field:
The utility model belongs to valve field, particularly relates to a kind of medium self pressure effect of passing through, and allows the medium forward flow to prevent the one-way valve of medium reverse flow in runner.
Background technique:
The one-way valve of prior art, though structure is simpler, but because seal form is the soft seal form, wearing and tearing and corrosion easily, working life is short, and when hot environment, Sealing is easily softening and lose the key property of valve, so the one-way valve of prior art only is fit to the situation of environment, generic media and the low keying rate of normal temperature low pressure.
The model utility content:
The utility model provides a kind of hard seal form at above problem, the one-way valve of wear-resistant and burn into long service life and high temperature high voltage resistant.
The utility model overcomes the above problems used technological scheme: a kind of one-way valve with following structure is provided, it comprises valve body, spool, spring, spring seat and adjusting plug screw, the center hole of described valve body is a step hole, one cavity is wherein arranged, be provided with air outlet perpendicular to axis at the cavity place, the center hole of cavity one side valve body is a suction port, and the diameter of suction port is less than the diameter of the center hole of cavity opposite side valve body, spool, spring, spring seat and adjusting plug screw are engaged in the center hole of cavity opposite side valve body successively, and the mating face of suction port and cavity is cone structure in the surface of nearly suction port one end of described spool and the valve body center hole.
After adopting above structure, the utility model compared with prior art, because the applying of the mating face of employing suction port and cavity and the conical surface of spool comes sealing channel, therefore seal form of the present utility model is hard seal form, so have characteristics wear-resistant and burn into long service life and high temperature high voltage resistant.
As further improvement, the conical surface place of the step angle of suction port and the cavity place and the spool of fitting with its step angle all is welded with the alloy of surface through special smooth treatment in the described valve body center hole, therefore sealability of the present utility model, the performance of working life and anti-corrosion high temperature high voltage resistant have been improved.
As further improvement, the outer surface at described valve body air outlet place circumferentially have the groove of width greater than the air outlet diameter, and regulate the plug screw place being provided with of valve body center hole and be provided with tapped hole perpendicular to axial direction, be provided with Cock screw in this tapped hole, Cock screw is used for fixing the adjusting plug screw, therefore the utility model adjusting is more stable, regulates plug screw and is difficult for becoming flexible, and gas flow is more smooth and easy.
Description of drawings:
Accompanying drawing is a structural representation of the present utility model.
As shown in the figure: 1, seal ring, 2, valve body, 2.1, valve body I, 2.2, valve body II, 3, spool, 4, spring, 5, spring seat, 6, regulate plug screw, 7, Cock screw.
Concrete embodiment:
Below in conjunction with accompanying drawing and concrete embodiment, the utility model is described further, but the utility model is not limited to following embodiment:
A kind of as shown in drawings one-way valve, it comprises valve body 2, spool 3, spring 4, spring seat 5 and adjusting plug screw 6, described valve body 2 is welded by valve body I2.1 and valve body II 2.2, the both ends of the surface of valve body 2 are equipped with seal ring 1, and the center hole of valve body 2 is a step hole, one cavity is wherein arranged, be provided with air outlet perpendicular to axis at the cavity place, the center hole of cavity one side valve body 2 is a suction port, and the diameter of suction port is less than the diameter of the center hole of cavity opposite side valve body 2, spool 3, spring 4, spring seat 5 and adjusting plug screw 6 are engaged in the center hole of cavity opposite side valve body 2 successively, spool 3 sliding fits are in the center hole of valve body 2, one end of spring 4 is against in the blind hole of spool 3, the other end of spring 4 is against on the spring seat 5, spring seat 5 sliding fits are in the center hole of valve body 2, spring seat 5 is against on the adjusting plug screw 6 away from an end of spring 4, the mating face of suction port and cavity is cone structure in the surface of described spool 3 nearly suction port one ends and valve body 2 center holes, and the conical surface on the mating face of suction port and cavity is fitted in the conical surface of spool 3 nearly suction port one ends and valve body 2 center holes, and the conical surface place of the mating face of suction port and cavity and the spool 3 that the face that engages is fitted all is welded with the alloy of surface through smooth treatment (smooth treatment be meant mechanical grinding handle) in valve body 2 center holes.
The outer surface at described valve body 2 air outlets places circumferentially have the groove of width greater than the air outlet diameter, and regulate plug screw 6 places being provided with of valve body 2 center holes and be provided with tapped hole perpendicular to axial direction, be provided with Cock screw 7 in this tapped hole.
Described spool 6 conical surfaces are provided with a pair of through hole that communicates with blind hole with the transition position of cylinder.
During work, regulate earlier plug screw, lock Cock screw after being adjusted to required pressure condition, seal ring on two end washers of valve body is installed in the pipeline subsequently.When the gas of suction port during greater than default spring pressure, flap, is gone out from the air outlet after gas enters valve cavity toward moving right; When the suction port gas pressure reduced, flap was toward moving left, and fitted in the step angle of the conical surface of flap and valve body I, and the closed gas passage prevents the gas reverse flow.
Claims (4)
1, a kind of one-way valve, it comprises valve body (2), spool (3), spring (4), spring seat (5) and adjusting plug screw (6), the center hole of described valve body (2) is a step hole, one cavity is wherein arranged, be provided with air outlet perpendicular to axis at the cavity place, the center hole of cavity one side valve body (2) is a suction port, and the diameter of suction port is less than the diameter of the center hole of cavity opposite side valve body (2), spool (3), spring (4), spring seat (5) and adjusting plug screw (6) are engaged in the center hole of cavity opposite side valve body (2) successively, it is characterized in that: the mating face of suction port and cavity is cone structure in the surface of nearly suction port one end of described spool (3) and valve body (2) center hole.
2, one-way valve according to claim 1 is characterized in that: the conical surface place of the step angle of suction port and the cavity place and the spool (3) of fitting with its step angle all is welded with the alloy of surface through smooth treatment in described valve body (2) center hole.
3, one-way valve according to claim 1 and 2, it is characterized in that: the outer surface at described valve body (2) air outlet place circumferentially have the groove of width greater than the air outlet diameter, and regulate plug screw (6) being provided with of valve body (2) center hole and locate to be provided with tapped hole perpendicular to axial direction, be provided with Cock screw (7) in this tapped hole.
4, one-way valve according to claim 1 and 2 is characterized in that: described spool (3) conical surface is provided with a pair of through hole that communicates with blind hole with the transition position of cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201218884U CN201236974Y (en) | 2008-07-22 | 2008-07-22 | Non-return valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201218884U CN201236974Y (en) | 2008-07-22 | 2008-07-22 | Non-return valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201236974Y true CN201236974Y (en) | 2009-05-13 |
Family
ID=40649705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201218884U Expired - Fee Related CN201236974Y (en) | 2008-07-22 | 2008-07-22 | Non-return valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201236974Y (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022569A (en) * | 2010-12-21 | 2011-04-20 | 芜湖盛力制动有限责任公司 | One-way valve of braking system for automobile and engineering machinery |
| CN102269285A (en) * | 2011-02-23 | 2011-12-07 | 淄博市博山防爆电器厂有限公司 | Automatic blowdown valve |
| CN102602895A (en) * | 2011-12-22 | 2012-07-25 | 潍坊博药生物科技有限公司 | Ozone water generating assembly for oral hygiene and facial purification and whitening |
| CN103307433A (en) * | 2013-06-28 | 2013-09-18 | 贵州航天精工制造有限公司 | Thread screwing-in type cross groove lubrication joint assembly |
| CN103591340A (en) * | 2012-10-18 | 2014-02-19 | 北京熊川阀门制造有限公司 | One-way valve |
| CN103613029A (en) * | 2013-11-19 | 2014-03-05 | 枣庄矿业（集团）有限责任公司柴里煤矿 | Winch interlocking valve limiting device |
| CN103697174A (en) * | 2013-12-31 | 2014-04-02 | 浙江沁园水处理科技有限公司 | Mechanical filter element service life monitoring valve |
| CN104847928A (en) * | 2015-05-18 | 2015-08-19 | 苏州赛智达智能科技有限公司 | Low-temperature filling valve on LNG storage tank |
| CN105673056A (en) * | 2016-02-22 | 2016-06-15 | 巨隆集团芜湖兴隆液压有限公司 | Hard sealing safety valve |
| CN106837942A (en) * | 2016-12-27 | 2017-06-13 | 重庆优萃科技有限公司 | Breather for hydraulic oil tank centrifugal separating device |
| CN107429876A (en) * | 2014-09-30 | 2017-12-01 | 内瓦利克控股有限公司 | Fluid supplying apparatus |
| CN108458142A (en) * | 2017-12-22 | 2018-08-28 | 兰州空间技术物理研究所 | A kind of unidirectional relief valve suitable for pressure control in spacecraft module |
| CN108743340A (en) * | 2018-08-27 | 2018-11-06 | 京山俊平机电科技有限公司 | A kind of medical nasal cleaner of environmental protection |
| CN108843826A (en) * | 2018-08-21 | 2018-11-20 | 湖北赛恩斯科技股份有限公司 | A kind of check valve assembly |
| CN108869818A (en) * | 2018-09-12 | 2018-11-23 | 苏州丹顿机电有限公司 | A kind of adjustable check valve of cracking pressure |
| CN108980421A (en) * | 2018-09-12 | 2018-12-11 | 苏州丹顿机电有限公司 | A kind of adjustable check valve of cracking pressure |
| CN109000005A (en) * | 2018-09-12 | 2018-12-14 | 苏州丹顿机电有限公司 | A kind of adjustable check valve of cracking pressure |
| RU2781031C1 (en) * | 2021-11-02 | 2022-10-04 | Публичное акционерное общество "Объединенная авиастроительная корпорация" (ПАО "ОАК") | Fuel depletion valve |
-
2008
- 2008-07-22 CN CNU2008201218884U patent/CN201236974Y/en not_active Expired - Fee Related
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022569A (en) * | 2010-12-21 | 2011-04-20 | 芜湖盛力制动有限责任公司 | One-way valve of braking system for automobile and engineering machinery |
| CN102269285A (en) * | 2011-02-23 | 2011-12-07 | 淄博市博山防爆电器厂有限公司 | Automatic blowdown valve |
| CN102602895A (en) * | 2011-12-22 | 2012-07-25 | 潍坊博药生物科技有限公司 | Ozone water generating assembly for oral hygiene and facial purification and whitening |
| CN102602895B (en) * | 2011-12-22 | 2014-01-22 | 山东乐康电器科技有限公司 | Ozone water generating assembly for oral hygiene and facial purification and whitening |
| CN103591340A (en) * | 2012-10-18 | 2014-02-19 | 北京熊川阀门制造有限公司 | One-way valve |
| CN103307433A (en) * | 2013-06-28 | 2013-09-18 | 贵州航天精工制造有限公司 | Thread screwing-in type cross groove lubrication joint assembly |
| CN103613029A (en) * | 2013-11-19 | 2014-03-05 | 枣庄矿业（集团）有限责任公司柴里煤矿 | Winch interlocking valve limiting device |
| CN103697174B (en) * | 2013-12-31 | 2016-06-22 | 浙江沁园水处理科技有限公司 | A kind of mechanical filter element service life monitoring valve |
| CN103697174A (en) * | 2013-12-31 | 2014-04-02 | 浙江沁园水处理科技有限公司 | Mechanical filter element service life monitoring valve |
| CN107429876A (en) * | 2014-09-30 | 2017-12-01 | 内瓦利克控股有限公司 | Fluid supplying apparatus |
| CN104847928A (en) * | 2015-05-18 | 2015-08-19 | 苏州赛智达智能科技有限公司 | Low-temperature filling valve on LNG storage tank |
| CN105673056A (en) * | 2016-02-22 | 2016-06-15 | 巨隆集团芜湖兴隆液压有限公司 | Hard sealing safety valve |
| CN106837942A (en) * | 2016-12-27 | 2017-06-13 | 重庆优萃科技有限公司 | Breather for hydraulic oil tank centrifugal separating device |
| CN108458142B (en) * | 2017-12-22 | 2020-03-17 | 兰州空间技术物理研究所 | One-way pressure relief valve suitable for spacecraft cabin pressure control |
| CN108458142A (en) * | 2017-12-22 | 2018-08-28 | 兰州空间技术物理研究所 | A kind of unidirectional relief valve suitable for pressure control in spacecraft module |
| CN108843826A (en) * | 2018-08-21 | 2018-11-20 | 湖北赛恩斯科技股份有限公司 | A kind of check valve assembly |
| CN108743340A (en) * | 2018-08-27 | 2018-11-06 | 京山俊平机电科技有限公司 | A kind of medical nasal cleaner of environmental protection |
| CN108743340B (en) * | 2018-08-27 | 2020-10-16 | 邵阳学院 | Environment-friendly medical nose syringe |
| CN108980421A (en) * | 2018-09-12 | 2018-12-11 | 苏州丹顿机电有限公司 | A kind of adjustable check valve of cracking pressure |
| CN109000005A (en) * | 2018-09-12 | 2018-12-14 | 苏州丹顿机电有限公司 | A kind of adjustable check valve of cracking pressure |
| CN108869818A (en) * | 2018-09-12 | 2018-11-23 | 苏州丹顿机电有限公司 | A kind of adjustable check valve of cracking pressure |
| CN108869818B (en) * | 2018-09-12 | 2020-10-27 | 苏州丹顿机电有限公司 | Opening pressure adjustable check valve |
| RU2781031C1 (en) * | 2021-11-02 | 2022-10-04 | Публичное акционерное общество "Объединенная авиастроительная корпорация" (ПАО "ОАК") | Fuel depletion valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: NINGBO XINGJIAN SPACE MANUFACTORY CO., LTD. Free format text: FORMER NAME: NINGBO XINGJIAN SPACE MANUFACTORY |
|
| CP03 | Change of name, title or address |
Address after: Yinzhou District Shiqi Street West Yangcun 315153 Zhejiang city of Ningbo Province Patentee after: Ningbo Xingjian Space Manufactory Inc. Address before: 315153 Zhejiang city of Ningbo province Yinzhou District Shi Gan Wan Hing Road No. 369 Street Patentee before: Ningbo Xingjian Space Manufactory |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090513 Termination date: 20130722 |