CN101994726A - One-way throttle valve - Google Patents
One-way throttle valve Download PDFInfo
- Publication number
- CN101994726A CN101994726A CN2010105626051A CN201010562605A CN101994726A CN 101994726 A CN101994726 A CN 101994726A CN 2010105626051 A CN2010105626051 A CN 2010105626051A CN 201010562605 A CN201010562605 A CN 201010562605A CN 101994726 A CN101994726 A CN 101994726A
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- China
- Prior art keywords
- spool
- plane
- valve
- way throttle
- valve body
- Prior art date
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Abstract
The invention discloses a one-way throttle valve which comprises a valve body, an O-rubber seal ring, a valve core, a retaining ring and an elastic retaining ring for a hole, wherein, the valve core is arranged in an inner chamber of the valve body and is provided with a throttling hole communicated with a front end and a rear end of the valve body; and an outer oblique plane on the front end of the valve core is provided with a sealing installation groove for installing the O-rubber seal ring. In the invention, when liquid flows from an A end to a B end or from the B end to the A end, the one-way throttle valve plays a role of open-close throttling. The one-way throttle valve has the advantages of simple structure, low manufacturing cost, stable performances, long service life, wide application and the like.
Description
Technical field
The present invention is widely used in guide's controlled hydraulic system, and it is installed on the hydraulic pilot system pipeline, and is forward and reverse when mobile at fluid, can realize the one-way throttle function.
Background technique
In high-pressure high flux hydraulic power system, selector valve commutation suddenly can cause hydraulic actuator to produce bigger impact, and can install one-way throttle valve this moment on selector valve guide control oil channel.By the movement velocity of the restriction of the throttling on guide oil oil return circuit change-over valve core, thereby the speed of retardation executive component commutation reaches and reduces the purpose that executive component impacts.But now general one-way throttle valve boundary dimension is big, installs to place in the occasion of compact structure and all compares difficulty.
Summary of the invention
The object of the present invention is to provide a kind of structure compact mounting type one-way throttle valve flexibly.This one-way throttle valve is made up of valve body, O-ring seals, spool, back-up ring, circlip for hole.Spool is installed in body cavity, and the space is arranged between it, and the outer inclined-plane of spool front end has the seal ring mounting groove to be used to install O-ring seals, and spool has throttle orifice to communicate with valve A end, B end.When fluid when A end flows to the B end, fluid by the gap of spool periphery and valve body by arriving the B end, but fluid free-flow; When fluid when B end flows to the A end, valve body, O-ring seals, spool form closed chamber under the effect of fluid, and fluid can not be passed through by the spool periphery and the gap of valve body, and fluid can only be by the throttle orifice in the middle of the spool by arriving the A end, fluid can only pass through in throttling, realizes the one-way throttle function with this.
Technical solution of the present invention is such: a kind of one-way throttle valve, comprise valve body, O-ring seals, spool, back-up ring, circlip for hole, it is characterized in that spool is installed in body cavity, the throttle orifice front end of spool communicates with the A end, the rear end communicates with the B end with spool bore, on the inclined-plane of spool front end O-ring seals is installed.
The spool front end has the seal ring mounting groove on the inclined-plane, and O-ring seals is installed in the seal ring mounting groove.
Gapped between spool external cylindrical surface and the body cavity wall.
Body cavity inclined-plane and valve body have O-ring seals between the outer inclined-plane, O-ring seals is at the inner cone between the inclined-plane outside body cavity inclined-plane and valve body, the rear cone on O-ring seals inclined-plane outside being positioned at body cavity inclined-plane and spool, gapped between the outer inclined-plane of body cavity inclined-plane and spool.
Advantage of the present invention is that spool is installed in body cavity, spool has throttle orifice to communicate with the valve body front end and back end, the outer inclined-plane of spool front end has the sealing mounting groove to be used to install O-ring seals, holds when liquid flows to B from the A end, or play the switching metering function when the B end flows to the A end.Simple in structure, cheap for manufacturing cost, stable performance, long service life is widely used etc.
Description of drawings
It is such that structure of the present invention constitutes:
Fig. 1 is that overall structure of the present invention is installed sectional view.
Fig. 2 is an one-way throttle valve sectional view of the present invention.
Fig. 3 is that one-way throttle valve of the present invention is pressed among Fig. 2 C to revolved view.
Among Fig. 1～Fig. 3, valve body (1), O-ring seals (2), spool (3), back-up ring (4), circlip for hole (5), throttle orifice (6), gap (7), seal ring mounting groove (8), A end (9), B end (10), spool bore (11), body cavity inclined-plane (12), the outer inclined-plane (13) of spool.
Embodiment
Most preferred embodiment of the present invention is such, on two guide's control oil channel of selector valve main valve plug this one-way throttle valve is installed respectively, and one-way throttle valve A end (9) connects the guide oil oil suction chamber, and B end (10) connects the guide oil oil back chamber.Reducing executive component when commutating suddenly at selector valve main valve plug (3) impacts.Owing between the outer inclined-plane (13) of nonreturn valve core and body cavity inclined-plane (12) O-ring seals (2) is installed, and O-ring seals (2) is installed in mounting groove (8), when fluid when A end (9) flows to B end (10), fluid passes through from throttle orifice (6) and gap (7), at this moment be that fluid pushes hold greatly O-ring seals (2) to the inclined-plane is formed with space from the small end inclined-plane, then fluid can pass through, otherwise when fluid flows to the A end from B end (10), fluid O-ring seals (2) when the small end inclined-plane is pushed on big end inclined-plane to, O-ring seals (2) and body cavity inclined-plane (12) form sealing surface, then fluid can only flow through from throttle orifice, its gap (7) obturation.Valve body (1) inner chamber is installed spool (3), gapped between it (7), spool (3) is connected with one-way throttle valve hole (6) mutually with valve body (1) the A end (9) of one-way throttle valve, the external diameter spool has O-ring seals mounting groove (8) on the outer inclined-plane, inclined-plane (13), O-ring seals (2) is installed in seal ring mounting groove (8) lining, spool (3) is installed in valve body (1) inner chamber, and spool bore (11) communicates with one-way throttle hole (6) A end (9), B end (10) to valve body (1).When fluid when A end (9) flows to B end (10), fluid by the gap (7) of spool (3) periphery and valve body (1) by arriving B end (10), but fluid free-flow; When fluid when B end (10) flows to A end (9), valve body under the effect of fluid (1), O-ring seals (2), spool (3) form closed chamber, fluid can not be passed through by spool (3) periphery and the gap (7) of valve body (1), fluid can only be by the throttle orifice (6) in the middle of the spool (3) by arriving A end (9), fluid can only pass through in throttling, realizes the one-way throttle function with this.
Claims (4)
1. one-way throttle valve, comprise valve body, O-ring seals, spool, back-up ring, circlip for hole, it is characterized in that spool (3) is installed in valve body (1) inner chamber, throttle orifice (6) front end of spool (3) communicates with A end (9), the rear end communicates with B end (10) with spool bore (11), on the inclined-plane of spool (3) front end O-ring seals (2) is installed.
2. according to the described one-way throttle valve of claim 1, it is characterized in that having seal ring mounting groove (8) on spool (3) the front end inclined-plane, O-ring seals (2) is installed in seal ring mounting groove (8).
3. according to the described one-way throttle valve of claim 1, it is characterized in that between spool (3) column jacket disc and valve body (1) internal chamber wall gapped (7).
4. according to the described one-way throttle valve of claim 1, it is characterized in that between the outer inclined-plane (13) of body cavity inclined-plane (12) and valve body O-ring seals (2) being arranged, O-ring seals (2) is the inner cone between inclined-plane (13) outside being positioned at body cavity inclined-plane (12) and valve body, the rear cone on O-ring seals (2) inclined-plane (13) outside being positioned at body cavity inclined-plane (12) and spool, gapped between the outer inclined-plane (13) of body cavity inclined-plane (12) and spool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105626051A CN101994726A (en) | 2010-11-29 | 2010-11-29 | One-way throttle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105626051A CN101994726A (en) | 2010-11-29 | 2010-11-29 | One-way throttle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101994726A true CN101994726A (en) | 2011-03-30 |
Family
ID=43785315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105626051A Pending CN101994726A (en) | 2010-11-29 | 2010-11-29 | One-way throttle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101994726A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481952A (en) * | 2014-12-09 | 2015-04-01 | 中联重科股份有限公司 | One-way throttling valve and lifting oil cylinder control system |
| CN107319940A (en) * | 2017-08-07 | 2017-11-07 | 江苏沁尔康环境电器有限公司 | A kind of method and Drinking fountain for solving the hot tank water expansion issues of Drinking fountain |
| CN108298234A (en) * | 2017-08-28 | 2018-07-20 | 湖南特达液压有限公司 | Integrated garbage compression box |
| CN109424598A (en) * | 2017-08-28 | 2019-03-05 | 湖南财经工业职业技术学院 | A kind of anti-explosion safety connector and hydraulic system |
| CN110671519A (en) * | 2019-10-12 | 2020-01-10 | 邵玉强 | Tubular flow control valve |
| CN114688262A (en) * | 2022-02-28 | 2022-07-01 | 武汉圣禹排水***有限公司 | Pilot valve and vacuum valve |
| CN117484214A (en) * | 2023-12-20 | 2024-02-02 | 长坂(扬州)机器人科技有限公司 | Flat thin high-precision hydrostatic turntable |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5233910A (en) * | 1991-05-14 | 1993-08-10 | Robert Bosch Gmbh | Pressure holding valve |
| CN200940727Y (en) * | 2006-04-28 | 2007-08-29 | 赵敏 | One-way throttle valve for heat pump type air conditioner |
| CN201090551Y (en) * | 2007-04-30 | 2008-07-23 | 安徽合力股份有限公司 | 1-3.5 T clearance buffer lifting oil cylinder with cylinder bottom one-way valve |
| CN201090794Y (en) * | 2007-06-05 | 2008-07-23 | 汤琪 | Back valve |
| CN201170224Y (en) * | 2007-12-26 | 2008-12-24 | 天津优瑞纳斯液压机械有限公司 | Heavy type gear rack rotary actuator |
| CN201874910U (en) * | 2010-11-29 | 2011-06-22 | 广西玉柴重工有限公司 | One-way throttle valve |
-
2010
- 2010-11-29 CN CN2010105626051A patent/CN101994726A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5233910A (en) * | 1991-05-14 | 1993-08-10 | Robert Bosch Gmbh | Pressure holding valve |
| CN200940727Y (en) * | 2006-04-28 | 2007-08-29 | 赵敏 | One-way throttle valve for heat pump type air conditioner |
| CN201090551Y (en) * | 2007-04-30 | 2008-07-23 | 安徽合力股份有限公司 | 1-3.5 T clearance buffer lifting oil cylinder with cylinder bottom one-way valve |
| CN201090794Y (en) * | 2007-06-05 | 2008-07-23 | 汤琪 | Back valve |
| CN201170224Y (en) * | 2007-12-26 | 2008-12-24 | 天津优瑞纳斯液压机械有限公司 | Heavy type gear rack rotary actuator |
| CN201874910U (en) * | 2010-11-29 | 2011-06-22 | 广西玉柴重工有限公司 | One-way throttle valve |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481952A (en) * | 2014-12-09 | 2015-04-01 | 中联重科股份有限公司 | One-way throttling valve and lifting oil cylinder control system |
| CN104481952B (en) * | 2014-12-09 | 2016-06-22 | 中联重科股份有限公司 | One-way throttle valve and hoist cylinder control system |
| CN107319940A (en) * | 2017-08-07 | 2017-11-07 | 江苏沁尔康环境电器有限公司 | A kind of method and Drinking fountain for solving the hot tank water expansion issues of Drinking fountain |
| CN108298234A (en) * | 2017-08-28 | 2018-07-20 | 湖南特达液压有限公司 | Integrated garbage compression box |
| CN109424598A (en) * | 2017-08-28 | 2019-03-05 | 湖南财经工业职业技术学院 | A kind of anti-explosion safety connector and hydraulic system |
| CN110671519A (en) * | 2019-10-12 | 2020-01-10 | 邵玉强 | Tubular flow control valve |
| CN114688262A (en) * | 2022-02-28 | 2022-07-01 | 武汉圣禹排水***有限公司 | Pilot valve and vacuum valve |
| CN117484214A (en) * | 2023-12-20 | 2024-02-02 | 长坂(扬州)机器人科技有限公司 | Flat thin high-precision hydrostatic turntable |
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| C06 | Publication | ||
| PB01 | Publication | ||
| 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: 20110330 |