CN102192207A - Plug-type middle-flow hard sealing one-way lock - Google Patents
Plug-type middle-flow hard sealing one-way lock Download PDFInfo
- Publication number
- CN102192207A CN102192207A CN2011101186220A CN201110118622A CN102192207A CN 102192207 A CN102192207 A CN 102192207A CN 2011101186220 A CN2011101186220 A CN 2011101186220A CN 201110118622 A CN201110118622 A CN 201110118622A CN 102192207 A CN102192207 A CN 102192207A
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- valve
- valve seat
- spring
- plug
- piston
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Abstract
The invention discloses a plug-type middle-flow hard sealing one-way lock, which is suitable for controlling an oil cylinder of a support and comprises a thread sleeve; a spring is arranged inside the thread sleeve; the other end of the spring is fixed at a valve core; the valve core is connected with a thread on a valve seat arranged on the thread sleeve under the action of the spring to form conical hard seal; a plug-type hydraulic assembly is formed by the whole sleeve; the top end of the valve core penetrates through a valve seat and extends out of an end port of the valve seat; a piston which plays a role in controlling and is supported by a small spring is arranged on the inner side of a valve body; and the middle part of the piston is provided with a thread capable of being conveniently assembled and disassembled. By adopting a plug-type hard sealing structure, the one-way lock has the advantages of high integration, strong reliability and long service life, is easy to install and maintain, can be restored directly by replacing the plug-type hydraulic assembly. Therefore, the one-way lock is simple, convenient and reliable.
Description
Technical field
The present invention relates to unidirectional lock field, be specially the unidirectional lock of the hard sealing of flow in a kind of plug-in type.
Background technique
Along with the colliery usage requirement more and more develops towards integrated and automation direction, reliability and working life require also more and more higher, traditional unidirectional lock is owing to adopt the conical surface seal of valve pad sealing or polyoxymethylene material, working life and accommodative ability of environment deficiency, valve pad is easy to destroy under the extruding repeatedly of valve seat, the sealing of conical surface polyoxymethylene also can be caused seal failure by cinder or other hard thing destruction, the part kind of valve inner is many, repair also very inconvenience, more and more do not satisfied the demand of colliery applying unit.
Summary of the invention
The purpose of this invention is to provide in a kind of plug-in type the unidirectional lock of the hard sealing of flow, with unidirectional lock working life of solving prior art with adaptive capacity is low and the problem of maintenance difficult.
In order to achieve the above object, the technical solution adopted in the present invention is:
The unidirectional lock of the hard sealing of flow in a kind of plug-in type, include valve body, in the described valve body valve pocket is arranged, also have a plurality of liquid inlet and outlet that are communicated with valve pocket on the valve body, it is characterized in that: have swivel nut to be installed in the valve pocket from valve pocket one end of valve body, also be provided with valve seat in the described valve pocket, described swivel nut and valve seat are screwed together and are one, also are slidingly fitted with piston in the described valve pocket; Be slidingly fitted with spool in the described valve seat, described spool becomes cone-shaped towards swivel nut one end, the spool the other end passes valve seat and points to described piston, be provided with spring in the described swivel nut, described spring one end is fixed in the swivel nut, the other end is fixed on valve core cone shape one end, described spool constitutes the conical surface by spring action in valve seat and seals firmly, be connected with little spring between described piston and the valve seat, described little spring is enclosed within spool and passes outside the part of valve seat, and little spring one end is connected on the valve seat, and the other end is connected on the piston.
The present invention adopts the plug-in type hard sealing structure, and level of integrated system height, good reliability, long service life are easy to installation and maintenance, directly repairs this unidirectional lock by changing the plug-in type hydraulic package, and is simple and convenient reliable.Part of the present invention and structure equally can with same a series of Pilot operated check valve of middle flow, reversible lock forms interchangeability.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
As shown in Figure 1.Structural type of the present invention is fit to the oil cylinder control of support, comprise the swivel nut 1 of being with relief valve connection, there has been the spring 2 that supports reset response swivel nut 1 inside, the other end of spring 2 is fixed on spool 3 inside, spool 3 seals firmly by spring 2 effects and the valve seat 4 formation conical surfaces that are threaded on the swivel nut 1, the a whole set of plug-in type hydraulic package that forms, valve seat 4 is passed on spool 3 tops, stretch out valve seat 4 ports, the piston 6 of making usefulness that starts to control that is supported by little spring 5 is contained in valve body 7 inboards, and the screw thread that is easy for installation and removal is arranged in the middle of the piston 6.
The present invention adopts the plug-in type hard sealing structure, and level of integrated system height, good reliability, long service life are easy to installation and maintenance, directly repairs this unidirectional lock by changing the plug-in type hydraulic package, and is simple and convenient reliable.
Two active chamber structures are identical, its working principle is as follows: the Placement of this unidirectional lock is: the PA mouth connects selector valve work sap cavity, the relative work sap cavity of selector valve that the PB termination is corresponding with PA, the A mouth connects a chamber of wanting the locking oil cylinder, the B mouth connects another chamber that does not need locking of this oil cylinder, and A ' mouthful connects safety valve or add stifled.
When operating mode need be controlled cylinder action, selector valve connects the work sap cavity of PA interface and opens feed flow, high-pressure work liquid enters the PA mouth and pushes spool open, working solution enters the back and enters the oil cylinder locked cavity by the A mouth, the one chamber action of this oil cylinder is stretched out, when the PA end stopped feed flow, spool formed the working solution locking that the metal hard-sealing collateral is held this oil cylinder active chamber with valve seat under the pressure of Returnning spring; When operating mode need be controlled the oil cylinder withdrawal, selector valve connects the work sap cavity of PB interface and opens feed flow, the high-pressure work liquid part promotion piston that enters from the PB end backs down spool, open spool and carry out off-load, make locked cavity liquid flow into the liquid return pipe road by PA, another part enters the non-locked cavity of oil cylinder by the B mouth regains locked cavity this active chamber feed liquor.When the PB end stopped feed flow, piston resetted under the little spring effect, and spool and valve seat form the sealing pressurize.
Because hydraulic package of the present invention adopts the metal hard-sealing structure, improved the working life and the adaptive capacity of unidirectional lock greatly, dress formula structure makes maintenance more convenient.
Claims (1)
1. the unidirectional lock of the hard sealing of flow in the plug-in type, include valve body, in the described valve body valve pocket is arranged, also have a plurality of liquid inlet and outlet that are communicated with valve pocket on the valve body, it is characterized in that: have swivel nut to be installed in the valve pocket from valve pocket one end of valve body, also be provided with valve seat in the described valve pocket, described swivel nut and valve seat are screwed together and are one, also are slidingly fitted with piston in the described valve pocket; Be slidingly fitted with spool in the described valve seat, described spool becomes cone-shaped towards swivel nut one end, the spool the other end passes valve seat and points to described piston, be provided with spring in the described swivel nut, described spring one end is fixed in the swivel nut, the other end is fixed on valve core cone shape one end, described spool constitutes the conical surface by spring action in valve seat and seals firmly, be connected with little spring between described piston and the valve seat, described little spring is enclosed within spool and passes outside the part of valve seat, and little spring one end is connected on the valve seat, and the other end is connected on the piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101186220A CN102192207A (en) | 2011-05-09 | 2011-05-09 | Plug-type middle-flow hard sealing one-way lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101186220A CN102192207A (en) | 2011-05-09 | 2011-05-09 | Plug-type middle-flow hard sealing one-way lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102192207A true CN102192207A (en) | 2011-09-21 |
Family
ID=44600891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101186220A Pending CN102192207A (en) | 2011-05-09 | 2011-05-09 | Plug-type middle-flow hard sealing one-way lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102192207A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2021857A1 (en) * | 1970-05-05 | 1971-11-25 | Rexroth Gmbh G L | Brake valve |
| DE3630454C1 (en) * | 1986-09-08 | 1987-11-12 | Montan Hydraulik Gmbh & Co Kg | Device for controlling hydraulic drives |
| US5150644A (en) * | 1990-04-17 | 1992-09-29 | Kabushiku Kasisha Ogura | Release valve mechanism in a fluid operated linear actuator for a portable cutter or the like |
| CN1989364A (en) * | 2004-07-12 | 2007-06-27 | 迪芬巴赫控制系统股份有限公司 | Releasable non-return valve |
| CN101660548A (en) * | 2009-09-25 | 2010-03-03 | 中国北方车辆研究所 | hydraulic lock-up valve |
| CN201461565U (en) * | 2009-07-09 | 2010-05-12 | 上海立新液压有限公司 | Hydraulic lock |
| CN202065265U (en) * | 2011-05-09 | 2011-12-07 | 巨隆集团芜湖兴隆液压有限公司 | Plug-in type medium-flow hard sealing unidirectional lock |
-
2011
- 2011-05-09 CN CN2011101186220A patent/CN102192207A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2021857A1 (en) * | 1970-05-05 | 1971-11-25 | Rexroth Gmbh G L | Brake valve |
| DE3630454C1 (en) * | 1986-09-08 | 1987-11-12 | Montan Hydraulik Gmbh & Co Kg | Device for controlling hydraulic drives |
| US5150644A (en) * | 1990-04-17 | 1992-09-29 | Kabushiku Kasisha Ogura | Release valve mechanism in a fluid operated linear actuator for a portable cutter or the like |
| CN1989364A (en) * | 2004-07-12 | 2007-06-27 | 迪芬巴赫控制系统股份有限公司 | Releasable non-return valve |
| CN201461565U (en) * | 2009-07-09 | 2010-05-12 | 上海立新液压有限公司 | Hydraulic lock |
| CN101660548A (en) * | 2009-09-25 | 2010-03-03 | 中国北方车辆研究所 | hydraulic lock-up valve |
| CN202065265U (en) * | 2011-05-09 | 2011-12-07 | 巨隆集团芜湖兴隆液压有限公司 | Plug-in type medium-flow hard sealing unidirectional lock |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110921 |