CN201269334Y - Overlapping-mounted one-way throttle valve - Google Patents
Overlapping-mounted one-way throttle valve Download PDFInfo
- Publication number
- CN201269334Y CN201269334Y CN 200820154316 CN200820154316U CN201269334Y CN 201269334 Y CN201269334 Y CN 201269334Y CN 200820154316 CN200820154316 CN 200820154316 CN 200820154316 U CN200820154316 U CN 200820154316U CN 201269334 Y CN201269334 Y CN 201269334Y
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- China
- Prior art keywords
- valve
- throttle valve
- throttling
- way
- adjusting screw
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- Expired - Fee Related
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Abstract
A stacked unidirectional throttle valve comprises a valve body which is provided with symmetrical main holes at two ends thereof and symmetrical flow passages communicated with the main holes thereon; the symmetrical main holes are provided with symmetrical unidirectional valves therein which are provided with symmetrical regulation sleeves hermetically connected with the valve body at the outer side thereof; the stacked unidirectional throttle valve is characterized in that the regulation sleeves are provided with step holes therein which are provided with regulation bolts inserted in the step holes at outer side ends thereof; the other side ends of the step holes are provided with throttle valve cores which are sleeved with springs; and the unidirectional valves are provided with unthreaded holes matched with the throttle valve cores therein. The stacked unidirectional throttle valve has the advantages of compact structure, relatively small external dimensions, quite convenient installation and operation and low costs.
Description
Technical field
The utility model relates to hydraulic pressure components and parts field, particularly a kind of one-way throttle valve that superposes and install.
Background technique
Throttle valve is a kind of skeleton symbol flow control valve, and it mainly is to change the pressure that passage section is regulated flow or changed the valve front and back when utilizing oil to flow through throttle valve.For one-way throttle valve, when oil stream forward flow, play throttling action, when oil flows when reverse, oil pressure promotes spool, makes spool and valve body formation major path, does not play throttling action, becomes one-way valve.The CN2660262Y of Chinese patent notice of authorization, the overlapping Double throttle check valve is made up of the identical one-way throttle valve of structure of respectively adorning of symmetry in the cavity of valve body center line both sides, but this kind valve arrangement complexity, lengthwise dimension is bigger than normal, valve body main aperture complex structure, processing cost height.
The model utility content
Technical problem to be solved in the utility model is, a kind of one-way throttle valve that superposes and install is provided, and is simple in structure, easy to operate, with low cost.
In order to address the above problem the technical solution of the utility model is such:
A kind of one-way throttle valve that superposes and install, comprise that two ends have the valve body of symmetrical main aperture, has the balance runner that communicates with main aperture on the described valve body, be provided with the one-way valve of symmetry in the described symmetrical main aperture, be provided with the adjustment sleeve of the symmetry that is connected with valve seal in the outside of one-way valve, it is characterized in that, has step hole in the described adjustment sleeve, the step hole outboard end is provided with the adjusting screw of inserting step hole, another side of step hole is provided with throttling valve core, be with spring on the throttling valve core, have a unthreaded hole that matches with throttling valve core in the described one-way valve.
Described step hole outboard end has internal thread, has outside thread on the described adjusting screw, and described adjusting screw and adjustment sleeve also are provided with an adjusting nut by being threaded on the adjusting screw, and the adjusting nut outside has the packing ring of a restriction adjusting screw position.
Described throttling valve core front end has the triangle throttling groove, and the unthreaded hole length in the described one-way valve is greater than the length of triangle throttling groove.
Be with seal ring on the throttling valve core in the described step hole.
Described adjustment sleeve is threaded with valve body, is provided with seal ring between adjustment sleeve and the valve body.
Beneficial effect, the utility model compact structure, boundary dimension is less relatively, and fitting operation is very convenient, and is with low cost, and market prospects are wide.
Description of drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is a structural representation of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 1, a valve body 1, a main aperture is respectively made at two ends along its length, and actuator port A1 and B1 are arranged above, and actuator port A2 and B2 are arranged below, and actuator port communicates with main aperture by the cast runner.
Dress one-way valve 2, spring 3, seal ring 4, adjustment sleeve 7 in valve body 1 main aperture.
Several grades of step holes are made in adjustment sleeve 7 inside, dress throttling valve core 6, seal ring 5.The other end is a tapped hole, debugs joint screw 10.Dress locking nut 8 and packing ring 9 on the adjusting screw 10.
Throttling valve core 6 ends have the triangle throttling groove.
One-way valve 2 center is vertically made an accurate unthreaded hole, matches with throttling valve core 6, and matching gap is restricted, too greatly then internal leakage is big, too little then easily stuck, when throttling valve core 6 push over low be throttling hour, should have one section cylinder of the triangle throttling groove that exceeds throttling valve core 6 to cooperate and hide length.
The stroke of adjustment sleeve 7 inner outermost level step hole restriction one-way valves 2 guarantees that spring 3 is not influenced working life by excessive compression; The step hole of intermediate step hole and one-way valve 2 is as the outside fix hole of spring 3, and the precompression length of definite spring 3, guarantees that one-way valve has definite cracking pressure; The one-level step hole cooperates with throttling valve core 6, and the outside stroke of restriction throttling valve core 6, and throttling valve core 6 is not deviate from when the throttling opening is maximum, in addition, contacts with seal ring in the groove on the throttling valve core 6, seals.
The locking nut 8 of adjusting screw 10 outsides when adjusting screw 10 is regulated the throttling openings to the needs position, rotates to adjustment sleeve 7 to the direction of adjustment sleeve 7 and to be adjacent to, and makes adjusting screw 10 unlikely loosening, guarantees that the throttling openings of sizes stablizes constant.
Sealing girth sheets 11 be contained in valve body below, the through hole corresponding with valve body hole arranged above, at runner hole place dress seal ring 12.
Working procedure is as follows:
If hydraulic oil flows into from the A2 mouth, flow to the A1 mouth by restriction on the throttling valve core 6 and the radial hole on the one-way valve, at this moment, one-way valve 2 is subjected to the impacting force of spring 3 and the effect of fluid pressure, is pressed on the valve body, and fluid can only pass through from restriction.
If hydraulic oil flows into from the A1 mouth, then hydraulic coupling promotes the power that one-way valve 2 overcomes spring 3 and moves, and fluid freely passes through from the space between one-way valve 2 and the valve body 1, arrival A2.
Valve is rotated 180 degree along the X-X axle, can realize the conversion of hydraulic system meter in and meter out.
The utility model compact structure, boundary dimension are less relatively, and fitting operation is very convenient, and be with low cost, is worth application.
More than show and described basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1, a kind of one-way throttle valve that superposes and install, comprise that two ends have the valve body of symmetrical main aperture, has the balance runner that communicates with main aperture on the described valve body, be provided with the one-way valve of symmetry in the described symmetrical main aperture, be provided with the adjustment sleeve of the symmetry that is connected with valve seal in the outside of one-way valve, it is characterized in that, has step hole in the described adjustment sleeve, the step hole outboard end is provided with the adjusting screw of inserting step hole, another side of step hole is provided with throttling valve core, be with spring on the throttling valve core, have a unthreaded hole that matches with throttling valve core in the described one-way valve.
2, a kind of one-way throttle valve that superposes and install according to claim 1, it is characterized in that, described step hole outboard end has internal thread, has outside thread on the described adjusting screw, described adjusting screw and adjustment sleeve are by being threaded, also be provided with an adjusting nut on the adjusting screw, the adjusting nut outside has the packing ring of a restriction adjusting screw position.
3, a kind of one-way throttle valve that superposes and install according to claim 1 is characterized in that described throttling valve core front end has the triangle throttling groove, and the unthreaded hole length in the described one-way valve is greater than the length of triangle throttling groove.
4, a kind of one-way throttle valve that superposes and install according to claim 1 is characterized in that, is with seal ring on the throttling valve core in the described step hole.
5, a kind of one-way throttle valve that superposes and install according to claim 1 is characterized in that described adjustment sleeve is threaded with valve body, is provided with seal ring between adjustment sleeve and the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820154316 CN201269334Y (en) | 2008-10-22 | 2008-10-22 | Overlapping-mounted one-way throttle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820154316 CN201269334Y (en) | 2008-10-22 | 2008-10-22 | Overlapping-mounted one-way throttle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201269334Y true CN201269334Y (en) | 2009-07-08 |
Family
ID=40841933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200820154316 Expired - Fee Related CN201269334Y (en) | 2008-10-22 | 2008-10-22 | Overlapping-mounted one-way throttle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201269334Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235435A (en) * | 2014-08-29 | 2014-12-24 | 苏州福润机械有限公司 | Stacked double throttle check valve |
| CN105114385A (en) * | 2015-08-14 | 2015-12-02 | 马鞍山唐拓凿岩机械有限公司 | Double-hydraulic-control one-way pressure release valve |
-
2008
- 2008-10-22 CN CN 200820154316 patent/CN201269334Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235435A (en) * | 2014-08-29 | 2014-12-24 | 苏州福润机械有限公司 | Stacked double throttle check valve |
| CN105114385A (en) * | 2015-08-14 | 2015-12-02 | 马鞍山唐拓凿岩机械有限公司 | Double-hydraulic-control one-way pressure release 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090708 Termination date: 20161022 |