CN201874910U - One-way throttle valve - Google Patents
One-way throttle valve Download PDFInfo
- Publication number
- CN201874910U CN201874910U CN2010206290541U CN201020629054U CN201874910U CN 201874910 U CN201874910 U CN 201874910U CN 2010206290541 U CN2010206290541 U CN 2010206290541U CN 201020629054 U CN201020629054 U CN 201020629054U CN 201874910 U CN201874910 U CN 201874910U
- Authority
- CN
- China
- Prior art keywords
- spool
- way throttle
- valve body
- throttle valve
- valve
- 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
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- Multiple-Way Valves (AREA)
Abstract
The utility model discloses a one-way throttle valve, which structurally comprises a valve body, an O-shaped rubber seal ring, a spool, a retainer ring and elastic retainer ring for a hole. The spool is mounted in an inner cavity of the valve body, the spool is provided with a throttle hole communicated with the front end and the rear end of the valve body, a seal mounting groove on an outer slope of the front end of the spool is used for mounting the O-shaped rubber seal ring, and the O-shaped rubber seal ring has closing and limiting function when a liquid flows from an end A to an end B or from the end B to the end A. The one-way throttle valve has the advantages of simple structure, low manufacturing cost, stable performance, long service life, wide application and the like.
Description
Technical field
The utility model 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 purpose of this utility model 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 utility model 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 and A end communicates, and rear end and spool bore and B hold on the inclined-plane of the spool front end that communicates 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 periphery and the body cavity wall.
The utility model has the advantages 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 utility model constitutes:
Fig. 1 is that overall structure of the present utility model is installed sectional view.
Fig. 2 is an one-way throttle valve sectional view of the present utility model.
Fig. 3 is that one-way throttle valve of the present utility model 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 utility model 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.Valve body (1) inner chamber is installed spool (3), gapped between it (7), spool (3) are connected with one-way throttle valve throttle orifice (6) mutually with valve body (1), the A end (9) of one-way throttle valve body, 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 A end (9), the B end (10) of one-way throttle valve opening (6) 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 (3)
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. require 1 described one-way throttle valve according to patent, it is characterized in that between spool (3) periphery and valve body (1) internal chamber wall gapped (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206290541U CN201874910U (en) | 2010-11-29 | 2010-11-29 | One-way throttle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206290541U CN201874910U (en) | 2010-11-29 | 2010-11-29 | One-way throttle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201874910U true CN201874910U (en) | 2011-06-22 |
Family
ID=44162828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206290541U Expired - Fee Related CN201874910U (en) | 2010-11-29 | 2010-11-29 | One-way throttle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201874910U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994726A (en) * | 2010-11-29 | 2011-03-30 | 广西玉柴重工有限公司 | One-way throttle valve |
| CN102743826A (en) * | 2012-07-13 | 2012-10-24 | 河海大学常州校区 | Hydraulic descent control device |
| CN103277552A (en) * | 2013-05-31 | 2013-09-04 | 陈相源 | Flow-limiting valve |
| CN103939408A (en) * | 2014-04-16 | 2014-07-23 | 江苏海力达机电制造有限公司 | Side valve type flow switching throttle valve |
| CN104343761A (en) * | 2013-08-09 | 2015-02-11 | 罗伯特·博世有限公司 | Hydraulic control distribution baffle plate valve and hydraulic system having distribution baffle plate and valve |
-
2010
- 2010-11-29 CN CN2010206290541U patent/CN201874910U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994726A (en) * | 2010-11-29 | 2011-03-30 | 广西玉柴重工有限公司 | One-way throttle valve |
| CN102743826A (en) * | 2012-07-13 | 2012-10-24 | 河海大学常州校区 | Hydraulic descent control device |
| CN102743826B (en) * | 2012-07-13 | 2014-10-29 | 河海大学常州校区 | Hydraulic descent control device |
| CN103277552A (en) * | 2013-05-31 | 2013-09-04 | 陈相源 | Flow-limiting valve |
| CN104343761A (en) * | 2013-08-09 | 2015-02-11 | 罗伯特·博世有限公司 | Hydraulic control distribution baffle plate valve and hydraulic system having distribution baffle plate and valve |
| CN104343761B (en) * | 2013-08-09 | 2018-06-12 | 罗伯特·博世有限公司 | The valve of hydraulic control dosage baffle and the hydraulic system with dosage baffle and valve |
| CN103939408A (en) * | 2014-04-16 | 2014-07-23 | 江苏海力达机电制造有限公司 | Side valve type flow switching throttle valve |
| CN103939408B (en) * | 2014-04-16 | 2016-05-11 | 江苏海力达机电制造有限公司 | A kind of side valve type flow switch choke valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20141129 |
|
| EXPY | Termination of patent right or utility model |