CN202560255U - Inserting type hard sealing bidirectional lock - Google Patents

Inserting type hard sealing bidirectional lock Download PDF

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Publication number
CN202560255U
CN202560255U CN2012201476651U CN201220147665U CN202560255U CN 202560255 U CN202560255 U CN 202560255U CN 2012201476651 U CN2012201476651 U CN 2012201476651U CN 201220147665 U CN201220147665 U CN 201220147665U CN 202560255 U CN202560255 U CN 202560255U
Authority
CN
China
Prior art keywords
spring
inserting type
hard sealing
bidirectional lock
plug
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
Application number
CN2012201476651U
Other languages
Chinese (zh)
Inventor
李福洪
朱述群
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Julong Group Wuhu Xinglong Hydraulic Co Ltd
Original Assignee
Julong Group Wuhu Xinglong Hydraulic Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Julong Group Wuhu Xinglong Hydraulic Co Ltd filed Critical Julong Group Wuhu Xinglong Hydraulic Co Ltd
Priority to CN2012201476651U priority Critical patent/CN202560255U/en
Application granted granted Critical
Publication of CN202560255U publication Critical patent/CN202560255U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses an inserting type hard sealing bidirectional lock which comprises an inserting type hydraulic check valve component. A spring is arranged in a threaded sleeve, and the other end of the spring is supported inside a valve core. The valve core is connected onto a valve seat on the threaded sleeve through the action of a spring and threads to form conical face hard sealing, a large spring is sleeved at the other end of the valve seat and forms conical face hard sealing with a large valve core, and the whole forms the inserting type hydraulic check valve component. According to the inserting type hard sealing bidirectional lock, an inserting type sealing structure is utilized, the system integrated level is high, the reliability is strong, the size is small, the service life is long, mounting and maintenance are easy, and the bidirectional lock can be repaired by exchanging the inserting type hydraulic check valve component directly, so that the bidirectional lock is simple, convenient and reliable.

Description

A kind of plug-in hard sealing two-way lock
Technical field
The utility model relates to a kind of reversible lock, relates in particular to the plug-in hard sealing two-way lock of hydraulic support balance jack.
Background technology
Reversible lock plays important effect as the Hydraulic Elements of the two-way locking control of hydraulic cylinders such as colliery support compensating cylinder, wall supporting cylinder, and the reliability direct relation of reversible lock the security and stability of each parts of support.Along with the colliery instructions for use more and more develops with automation direction towards integrated; Reliability and application life require also increasingly high; Traditional reversible lock is owing to adopt the conical surface seal of valve pad sealing or polyformaldehyde material, and application life and accommodative ability of environment are not enough, and valve pad is easy to destroy under the extruding repeatedly of valve seat; The sealing of conical surface polyformaldehyde also can be caused seal failure by cinder or other hard thing destruction; The part kind of valve inner is many, repairs also very inconvenience, has more and more satisfied not the demand of colliery applying unit.In this case, we design, produce a kind of dependable performance through independent research, and compact conformation, adaptive capacity are strong, and installation, maintenance is reversible lock easily, satisfies user's use needs.
The utility model content
The purpose of the utility model provides a kind of plug-in hard sealing two-way lock, with reversible lock application life that solves prior art and the problem that adaptive capacity is low, integrated level is low and installation, maintenance is difficult.
In order to achieve the above object, the technical scheme that the utility model adopted is:
A kind of plug-in hard sealing two-way lock; Comprise plug-in hydraulically-controlled one-way valve assembly, there is spring swivel nut inside, and the other end of spring is against valve core inside; Spool seals through spring action and the valve seat and the formation conical surface that are threaded on the swivel nut firmly; The spool other end is with big spring and forms the conical surface with big valve core and seals firmly, the whole plug-in hydraulically-controlled one-way valve assembly that forms, and two cover plug-in hydraulically-controlled one-way valve assemblies are placed in the valve body.
The plug-in hard sealing structure is adopted in this practicality, and level of integrated system height, good reliability, little, the long service life of volume are easy to installation and maintenance, directly repairs this reversible lock through changing the plug-in hydraulic package, and is simple and convenient reliable.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 bows for the utility model structure and cuts open sketch map.
The specific embodiment
A kind of plug-in hard sealing two-way lock; Comprise plug-in hydraulically-controlled one-way valve assembly, there is spring 2 swivel nut 1 inside, and the other end of spring 2 is against spool 3 inside; Spool 3 seals through spring 2 effects and the valve seat 4 and the formation conical surface that are threaded on the swivel nut 1 firmly; Spool 3 other ends are with big spring 5 and form the conical surface with big valve core 6 and seal firmly, the whole plug-in hydraulically-controlled one-way valve assembly that forms, and two cover plug-in hydraulically-controlled one-way valve assemblies are placed in the valve body 7.
Two working chamber structures are identical; Its operating principle is following: the connected mode of this reversible lock is: the PA mouth connects reversal valve work sap cavity; The relative work sap cavity of reversal valve that the PB termination is corresponding with PA, the A mouth connects a chamber of wanting the locking oil cylinder, and the B mouth connects another chamber that needs locking of this oil cylinder.
When operating mode need be controlled A oil cylinder that mouth connects and stretches out; Reversal valve connects the work sap cavity of PA interface and opens feed flow; High-pressure work liquid gets into a PA mouth part and pushes spool open, and working solution gets into the back and gets into the oil cylinder locked cavity through the A mouth, and the chamber action of this oil cylinder is stretched out; Another part high-pressure work liquid promotes the push rod of another plug-in hydraulic package through the hydraulic control working hole of valve inner; The hydraulic package of opening opposite side separates spool and valve seat, when that chamber work that connects the B mouth is shunk, and stable time liquid.When the PA end stopped feed flow, spool formed the working solution locking that the metal hard-sealing collateral is held this oil cylinder working chamber with valve seat under the pressure of valve core spring that resets, and the initial sealing state that equally also returns to of the other end forms two-way locking steady working condition; When operating mode need be controlled B oil cylinder that mouth connects and stretches out, reversal valve connect the work sap cavity of PB interface and opens feed flow, formed and pairing action during PA confession liquid, finally realized two-way locking.
Because the utility model hydraulic package adopts the metal hard-sealing structure, improved the application life and the adaptive capacity of reversible lock greatly, dress formula structure makes maintenance more convenient.

Claims (1)

1. a plug-in hard sealing two-way is locked; Comprise plug-in hydraulically-controlled one-way valve assembly, it is characterized in that: there is spring swivel nut inside, and the other end of spring is against valve core inside; Spool seals through spring action and the valve seat and the formation conical surface that are threaded on the swivel nut firmly; The spool other end is with big spring and forms the conical surface with big valve core and seals firmly, the whole plug-in hydraulically-controlled one-way valve assembly that forms, and two cover plug-in hydraulically-controlled one-way valve assemblies are placed in the valve body.
CN2012201476651U 2012-04-10 2012-04-10 Inserting type hard sealing bidirectional lock Expired - Fee Related CN202560255U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012201476651U CN202560255U (en) 2012-04-10 2012-04-10 Inserting type hard sealing bidirectional lock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012201476651U CN202560255U (en) 2012-04-10 2012-04-10 Inserting type hard sealing bidirectional lock

Publications (1)

Publication Number Publication Date
CN202560255U true CN202560255U (en) 2012-11-28

Family

ID=47209919

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012201476651U Expired - Fee Related CN202560255U (en) 2012-04-10 2012-04-10 Inserting type hard sealing bidirectional lock

Country Status (1)

Country Link
CN (1) CN202560255U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103291341A (en) * 2013-05-31 2013-09-11 巨隆集团芜湖兴隆液压有限公司 Cartridge middle-flow balance bidirectional lock
CN103291336A (en) * 2013-05-31 2013-09-11 巨隆集团芜湖兴隆液压有限公司 Cartridge large-flow balance bidirectional lock
CN103291340A (en) * 2013-05-31 2013-09-11 巨隆集团芜湖兴隆液压有限公司 Large-flow balance bidirectional lock
CN104500122A (en) * 2014-12-26 2015-04-08 中煤北京煤矿机械有限责任公司 Automatic unloading reversible lock

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103291341A (en) * 2013-05-31 2013-09-11 巨隆集团芜湖兴隆液压有限公司 Cartridge middle-flow balance bidirectional lock
CN103291336A (en) * 2013-05-31 2013-09-11 巨隆集团芜湖兴隆液压有限公司 Cartridge large-flow balance bidirectional lock
CN103291340A (en) * 2013-05-31 2013-09-11 巨隆集团芜湖兴隆液压有限公司 Large-flow balance bidirectional lock
CN104500122A (en) * 2014-12-26 2015-04-08 中煤北京煤矿机械有限责任公司 Automatic unloading reversible lock

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121128

Termination date: 20130410