CN201925254U - Two-way hydraulic lock - Google Patents
Two-way hydraulic lock Download PDFInfo
- Publication number
- CN201925254U CN201925254U CN2011200150833U CN201120015083U CN201925254U CN 201925254 U CN201925254 U CN 201925254U CN 2011200150833 U CN2011200150833 U CN 2011200150833U CN 201120015083 U CN201120015083 U CN 201120015083U CN 201925254 U CN201925254 U CN 201925254U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- nonreturn
- valve core
- hexagonal
- 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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Abstract
The utility model relates to a two-way hydraulic lock, which ensures that an oil cylinder can keep pressure when remaining in any place, and overcomes the defects that: in the prior art, a joint and a valve sleeve are in an integrated structure, and the end of a valve core is complicated. The two-way hydraulic lock is characterized in that: a one-way valve core connecting spring is arranged in a valve sleeve, and a one-way valve core and the valve sleeve are arranged between an inlet and an outlet which correspond to each other; a hexagonal thread plug is arranged on a valve body, is in threaded connection with the valve body and is in internal threaded connection with the valve sleeve, and the valve sleeve in the valve body is in threaded connection with the hexagonal thread plug; and the hexagonal thread plug is fixed in a valve hole of the valve body through threads. When the hexagonal thread plug is unscrewed, the hexagonal thread plug can be simultaneously detached together with the valve sleeve, and the valve sleeve and the hexagonal thread plug form a whole and so can be simultaneously installed; and the one-way valve core and the valve sleeve arranged on the valve body can be interchanged.
Description
Technical field
The utility model relates to the modular construction in a kind of hydraulic system, especially a kind ofly guarantees that oil cylinder rests on the bidirectional hydraulic lock that the arbitrary position can both pressurize.
Background technique
Bidirectional hydraulic lock is widely used in the hydraulic system of engineering machinery and handling machinery, after reliably being stopped at an arbitrary position, work actuator (oil cylinder) avoids play under external force, generally all at bidirectional hydraulic lock of actuator's (oil cylinder) oil inlet and outlet serial connection, so that oil cylinder is no matter being parked in any position can both pressurize.As a bidirectional hydraulic lock is all arranged on the mobile crane support oil cylinder.
Such as: Patent Office of the People's Republic of China has announced a CN201344036Y patent on November 11st, 2009, name is called the hydraulic bidirectional lock, comprise valve body, valve seat, valve pocket and spool, a cylindrical cavity is arranged in the valve body, with two opposites of cylindrical cavity Vertical direction respectively by two liquid entering hole PA, PB and two liquid outlet A, B, identical respectively at cylindrical cavity, piston is equipped with at the center in the cylindrical cavity, the right and left of piston symmetry is successively installed valve pocket, the first layer packing ring, valve seat, end-face seal ring, second layer packing ring, spool, valve core spring and joint, an end of close piston on the spool, circumferential apertures place over against valve pocket is processed with a step.But an end of the joint of this hydraulic bidirectional lock is an enclosed construction, and the other end of joint forms valve pocket, and spool is contained in joint inside, the end construction more complicated of spool.
Summary of the invention
The utility model has solved the prior art middle joint and valve pocket is structure as a whole, the shortcoming of spool end construction complexity, and it is that split is connected that a kind of valve pocket and hexagonal spiro plug are provided, valve core structure is simple, bidirectional hydraulic lock easy to process.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of bidirectional hydraulic lock, comprise valve body and be arranged at the interior nonreturn valve core of valve body, hydraulic lock comprises two inlets and corresponding two outlets, cut off with bidirectional ram between two inlets, it is characterized in that nonreturn valve core connects spring and is arranged in the valve pocket, nonreturn valve core and and between valve pocket is arranged on corresponding inlet and exports, valve body is provided with hexagonal spiro plug, hexagonal spiro plug adopts with valve body and is threaded, and hexagonal spiro plug is connected with valve pocket by internal thread.
As preferably, the hexagonal spiro plug on the valve body is two, and an outlet of hydraulic lock is arranged on the middle part of one of them hexagonal spiro plug, and another outlet is arranged on the valve body wall.
As preferably, be provided with valve opening in the valve body, valve opening runs through valve body, and bidirectional ram is arranged in the valve opening, and valve pocket is in the two ends of valve opening, and the end of valve pocket is equipped with seal ring and seals mutually with the valve opening wall.
As preferably, nonreturn valve core is the cylindric of end sealing, and the end of nonreturn valve core is the conical surface, and this end is inserted in the valve pocket, and the conical surface matches with the step of valve pocket inside.
As preferably, spring is arranged in the cylinder of nonreturn valve core, and an end of spring is connected with nonreturn valve core closed end inwall, and the other end is connected with the hexagonal spiro plug inner bottom part.
As preferably, sleeve wall is provided with hydraulic fluid port, and the outlet that is provided with on the valve body wall communicates with hydraulic fluid port on the corresponding sleeve wall.
The beneficial effects of the utility model are: the valve pocket of valve inner and hexagonal spiro plug are by being threaded, hexagonal spiro plug is fixed in the valve opening of valve body by screw thread, when outwarding winding hexagonal spiro plug, hexagonal spiro plug can be dismantled simultaneously together with valve pocket, valve pocket and hexagonal spiro plug form an integral body, can install simultaneously, and the nonreturn valve core that is provided with on the valve body, valve pocket can exchange.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model;
Fig. 2 is a kind of plan view of the utility model;
Among the figure: 1, valve body, 2, composite rim, 3, the outer-hexagonal plug screw, 4, spring, 5, nonreturn valve core, 6, valve pocket, 7, the conical surface, 8, O type circle, 9, hydraulic fluid port, 10, bidirectional ram, 11, hexagonal socket head plug.
Embodiment
Below by specific embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: a kind of bidirectional hydraulic lock (referring to accompanying drawing 1 accompanying drawing 2), comprise valve body 1, valve inner is provided with the valve opening that connects valve body, the neutral position of valve opening is provided with bidirectional ram 10, the midcircumferential plane of bidirectional ram be provided with O type circle 8 and with the valve opening inner wall sealing, body wall is provided with inlet A1 and inlet B1 and outlet B2, inlet A1 and inlet B1 and valve opening are perpendicular, outlet B2 and valve opening tilt, outlet B2 is corresponding with inlet B1, the valve opening two ends are respectively arranged with outer-hexagonal plug screw 3 and hexagonal socket head plug 11, hexagonal socket head plug 11 is arranged on one end near outlet B2, outer-hexagonal plug screw middle part is provided with outlet A2, outlet A2 is corresponding with inlet A1, the middle part of hexagonal socket head plug and outer-hexagonal plug screw is a cavity, be connected with valve pocket 6 by internal thread in the cavity, the valve pocket outer installment has O type circle 8 and seals mutually with the valve opening inwall, valve pocket is cylindrical-shaped structure, valve pocket inside is provided with step, valve pocket inside is provided with nonreturn valve core 5 and spring 4, nonreturn valve core is the cylindrical-shaped structure of end sealing, closed end has a conical surface 7, the conical surface matches with the step of valve pocket inside, spring one end is connected with nonreturn valve core closed end inwall, the other end is connected with the hexagonal spiro plug inner bottom part, and the sleeve wall of two valve pockets is provided with the hydraulic fluid port of symmetry, and the hydraulic fluid port that wherein is in the valve pocket on the right communicates with outlet B2.
The left side: nonreturn valve core 5 is contained in movable cooperation the in unidirectional valve pocket 6 holes, the left side, 4 effects of on the left side spring down, withstand step and sealing in unidirectional valve pocket 6 holes with the conical surface, seal with O type circle 8 between unidirectional valve pocket 6 in the left side and the valve body 1, bidirectional ram 10 is contained in valve body 1 hole, and can slide flexibly, with O type circle and valve body 1 sealing, leak between blocking-up inlet A1 and the inlet B1.
The right: between valve body 1 and the hexagonal socket head plug 11 with being threaded composite rim 2 sealings.The nonreturn valve core 5 on the right is contained in the hole of unidirectional valve pocket 6 on the right, and movable the cooperation, spring 4 effects on the right withstand with the conical surface of nonreturn valve core that step also seals in unidirectional valve pocket the 6 hole in down.Seal with O type circle between unidirectional valve pocket 6 in the right and the valve body 1.
When inlet A1 oil-feed, fluid is by left side nonreturn valve core 5 and pressure spring 4, and left side nonreturn valve core 5 opens, and A2 is fuel-displaced in outlet, and hydraulic oil enters actuator (the big chamber of oil cylinder).And oil cylinder loculus fluid enters bidirectional hydraulic lock outlet B2, and hydraulic oil opens at the promotion lower compression spring 4 of bidirectional ram 10 by the right nonreturn valve core 5(the right this moment nonreturn valve core 5) flow out from inlet B1.When not oil-feed of inlet A1, the nonreturn valve core 5 on the left side is closed under the effect of spring force.Outlet A2 is obstructed with inlet A1, outlet A2 pressurize.
Otherwise, when inlet B1 oil-feed, fluid is by the nonreturn valve core and the pressure spring 4 on the right, the right nonreturn valve core 5 opens, it is fuel-displaced that export B2 this moment, hydraulic oil enters actuator's (oil cylinder loculus), and the big chamber of oil cylinder fluid enters the outlet A2(left side nonreturn valve core 5 of bidirectional hydraulic lock in 4 unlatchings of the promotion lower compression left side of bidirectional ram 10 spring), A1 is fuel-displaced for inlet.When not oil-feed of inlet B1, the right nonreturn valve core 5 is closed under the spring force effect.Outlet B2 is obstructed with inlet B1, outlet B2 pressurize.
Above-described embodiment is a kind of preferred version of the present utility model, is not the utility model is done any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technological scheme that claim puts down in writing.
Claims (6)
1. bidirectional hydraulic lock, comprise valve body and be arranged at the interior nonreturn valve core of valve body, hydraulic lock comprises two inlets and corresponding two outlets, cut off with bidirectional ram between two inlets, it is characterized in that nonreturn valve core connects spring and is arranged in the valve pocket, nonreturn valve core with and between valve pocket is arranged on corresponding inlet and exports, valve body is provided with hexagonal spiro plug, hexagonal spiro plug adopts with valve body and is threaded, and hexagonal spiro plug is connected with valve pocket by internal thread.
2. bidirectional hydraulic lock according to claim 1 is characterized in that the hexagonal spiro plug on the valve body is two, and an outlet of hydraulic lock is arranged on the middle part of one of them hexagonal spiro plug, and another outlet is arranged on the valve body wall.
3. bidirectional hydraulic lock according to claim 1 is characterized in that being provided with valve opening in the valve body, and valve opening runs through valve body, and bidirectional ram is arranged in the valve opening, and valve pocket is in the two ends of valve opening, and the end of valve pocket is equipped with seal ring and seals mutually with the valve opening wall.
4. according to claim 1 or 2 or 3 described bidirectional hydraulic locks, it is characterized in that nonreturn valve core is the cylindric of end sealing, the end of nonreturn valve core is the conical surface, and this end is inserted in the valve pocket, and the conical surface matches with the step of valve pocket inside.
5. according to claim 1 or 2 or 3 described bidirectional hydraulic locks, it is characterized in that spring is arranged in the cylinder of nonreturn valve core, an end of spring is connected with nonreturn valve core closed end inwall, and the other end is connected with the hexagonal spiro plug inner bottom part.
6. according to claim 1 or 2 or 3 described bidirectional hydraulic locks, it is characterized in that sleeve wall is provided with hydraulic fluid port, the outlet that is provided with on the valve body wall communicates with hydraulic fluid port on the corresponding sleeve wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200150833U CN201925254U (en) | 2011-01-18 | 2011-01-18 | Two-way hydraulic lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200150833U CN201925254U (en) | 2011-01-18 | 2011-01-18 | Two-way hydraulic lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201925254U true CN201925254U (en) | 2011-08-10 |
Family
ID=44429105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200150833U Expired - Fee Related CN201925254U (en) | 2011-01-18 | 2011-01-18 | Two-way hydraulic lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201925254U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174693A (en) * | 2013-04-07 | 2013-06-26 | 华菱星马汽车（集团）股份有限公司 | Flow regeneration hydraulic lock valve device |
| CN108561355A (en) * | 2018-07-12 | 2018-09-21 | 宁波善研液压有限公司 | bidirectional hydraulic lock |
| CN110499987A (en) * | 2019-09-24 | 2019-11-26 | 河北斯弗液压机械技术有限公司 | A kind of hydraulic well lid anti-pinch people lock |
| CN113251018A (en) * | 2021-05-31 | 2021-08-13 | 中国船舶科学研究中心 | Deep sea stack type hydraulic lock and working process thereof |
-
2011
- 2011-01-18 CN CN2011200150833U patent/CN201925254U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174693A (en) * | 2013-04-07 | 2013-06-26 | 华菱星马汽车（集团）股份有限公司 | Flow regeneration hydraulic lock valve device |
| CN103174693B (en) * | 2013-04-07 | 2015-05-27 | 华菱星马汽车（集团）股份有限公司 | Flow regeneration hydraulic lock valve device |
| CN108561355A (en) * | 2018-07-12 | 2018-09-21 | 宁波善研液压有限公司 | bidirectional hydraulic lock |
| CN110499987A (en) * | 2019-09-24 | 2019-11-26 | 河北斯弗液压机械技术有限公司 | A kind of hydraulic well lid anti-pinch people lock |
| CN113251018A (en) * | 2021-05-31 | 2021-08-13 | 中国船舶科学研究中心 | Deep sea stack type hydraulic lock and working process thereof |
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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: 20110810 Termination date: 20140118 |