CN207621100U - A kind of hydraulic lock - Google Patents
A kind of hydraulic lock Download PDFInfo
- Publication number
- CN207621100U CN207621100U CN201721500843.3U CN201721500843U CN207621100U CN 207621100 U CN207621100 U CN 207621100U CN 201721500843 U CN201721500843 U CN 201721500843U CN 207621100 U CN207621100 U CN 207621100U
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- Prior art keywords
- hydraulic
- valve
- protection section
- position limitation
- limitation protection
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Abstract
The utility model provides a kind of hydraulic lock comprising lock body；A hydraulic valve being symmetrically disposed in lock body；The hydraulic valve includes valve body and the spool positioned at valve inner, and tap hole is provided in valve body；The oilhole be connected with the tap hole of the hydraulic valve being opened on lock body side wall；Front end is abutted with hydraulic pressure valve core, and a push rod of valve body external symmetry setting is stretched out in rear end；A putting back-end portion is fixedly connected, the sliding shoe promoted can be controlled jointly with 2 push rods；Position limitation protection section is provided on the valve body, position limitation protection section offers the tap hole be connected with fuel feed hole, oil outlet in side wall.The utility model devises position limitation protection section between push rod end and valve body; in push rod by hydraulic coupling pusher movable valve plug; when spool on earth after; under the action of position limitation protection section; the stress surface of push rod end is the annular surface of position limitation protection section; push rod, which receives, to be effectively protected, not easy to break, substantially prolongs its service life.
Description
Technical field
The utility model belongs to fluid delivery system technical field, and in particular to a kind of hydraulic pressure for control piper switch
Lock.
Background technology
In fluid delivery pipeline, hydraulic lock is often used.Hydraulic lock is also hydraulic control one-way valve, when control mouth does not have pressure
When, hydraulic control one-way valve as common check valve, fluid can only one way flow, when push rod end has pressure push control piston
Overcome the spring force on inner elements of check valve, open-top inner elements of check valve that opening is made to open, forward and reverse liquid stream can pass freely through,
Hydraulic control one-way valve, which not only can be reversed liquid stream, to be played cut-off and is sealed, but also can allow positive direction liquid stream under certain condition certainly
By passing through, therefore it is mostly used in hydraulic system pressurize or locking circuit.
In traditional hydraulic lock, push rod push spool, when spool on earth after, there are prodigious between push rod end and valve body
Gap, as shown in Figure 1, in lock body under the pressure of hydraulic oil, push rod end stress is easy to be broken, and influences its service life.
Utility model content
To solve the above-mentioned problems, the utility model proposes a kind of hydraulic lock, specific technical solution is as follows：
A kind of hydraulic lock comprising
Lock body；
2 hydraulic valves being symmetrically disposed in lock body；The hydraulic valve includes valve body and the spool positioned at valve inner, valve
A tap holes are provided on body；
The oilhole be connected with the A tap holes of the hydraulic valve being opened on lock body；
Front end is abutted with hydraulic pressure valve core, and 2 push rods of valve body external symmetry setting are stretched out in rear end；
2 putting back-end portions are fixedly connected, the sliding shoe promoted can be controlled jointly with 2 push rods；
Position limitation protection section is provided on the valve body, the position limitation protection section is hollow structure, and front end is fixed with valve body
Connection, rear end have annular surface；
Push rod front end passes through the internal cavity of position limitation protection section to be abutted with spool, when rear end is advanced into extreme position and
The annular surface of position limitation protection section abuts；
Position limitation protection section offers the B tap holes be connected with the oilhole on lock body in side wall.
Further, the B tap holes of the position limitation protection section offer multiple.
Further, it is provided with sealing ring between the sliding shoe and lock body.
The beneficial effects of the utility model are：
The utility model devises position limitation protection section between push rod end and valve body, is pushed after push rod is by hydraulic coupling
Spool, when spool on earth after, under the action of position limitation protection section, the stress surface of push rod end is the annular surface of position limitation protection section,
Push rod, which receives, to be effectively protected, not easy to break, substantially prolongs its service life.
Description of the drawings
Fig. 1 is hydraulic valve structural schematic diagram in traditional hydraulic lock；
Fig. 2 is the structural schematic diagram of an embodiment of the utility model；
Fig. 3 is hydraulic valve structural schematic diagram in Fig. 2.
Figure label：
1:Valve body；2：A tap holes；3：Push rod；4：Spool；5：Position limitation protection section；6：B tap holes; 7:Sliding shoe；8：Lock
Body.
Specific implementation mode
Below in conjunction with the accompanying drawings and the embodiments of the present invention are further detailed to a kind of hydraulic lock work of the utility model
Explanation.
With reference to Fig. 2, Fig. 3, a kind of hydraulic lock comprising lock body 8 and 2 hydraulic valves being symmetrically disposed in lock body 8；It is described
Hydraulic valve includes valve body 1 and the spool 4 inside valve body 1, and A tap holes 2 are provided in valve body；It is opened on 8 side wall of lock body
The oilhole be connected with the A tap holes 2 of the hydraulic valve；Front end is abutted with hydraulic pressure valve core 4, and rear end is stretched out outside valve body 1
Symmetrically arranged 2 push rods 3；The sliding shoe that 23 rear ends of push rod are fixedly connected, can be promoted with the common left and right of 2 push rods 3
7；Position limitation protection section 5 is provided on the valve body 1, the position limitation protection section 5 is hollow structure, and front end is fixed with valve body 1 to be connected
It connects, rear end has annular surface；3 front end of push rod passes through the internal cavity of position limitation protection section 5 to be abutted with spool 4, and rear end promotes
It is abutted to when extreme position with the annular surface of position limitation protection section 5；Position limitation protection section 5 is offered in side wall and is led with the oilhole on lock body
Logical B tap holes 6.
In one preferred embodiment, the B tap holes 6 of the position limitation protection section 5 offer multiple, effective protection push rod.In order to
Enhance sealing effect.It is preferably provided with sealing ring between the sliding shoe 7 and lock body 8.
The hydraulic lock of the utility model use process is as follows, with reference to Fig. 3, the oilhole V1 oil inlets on lock body generate pressure
The spool in left side, fluid is pushed to connect the oilhole C1 on lock body by the A tap holes 2 on valve body, pass through the B of position limitation protection section 5
Tap hole 6 connects the oilhole C1 on lock body, fluid outflow, and loop hydraulic oil is flowed into from the oilhole C2 on lock body, when oilhole V1 is pressed
Sliding shoe 7 is then pushed when power is got higher, sliding shoe 7, which moves right, pushes the spool on right side, then oilhole C2 is connected with oilhole V2 oil circuits
Form a circuit.In the process of running, push rod push spool on earth after, under the action of position limitation protection section, push rod end
Stress surface is the annular surface of position limitation protection section, and push rod, which receives, to be effectively protected, not easy to break, substantially prolongs it and uses the longevity
Life.
It is all made according to the patent scope of the utility model the foregoing is merely the better embodiment of the utility model
Equivalent changes and modifications should all belong to the covering scope of the utility model patent.
Claims (3)
1. a kind of hydraulic lock comprising
Lock body；
2 hydraulic valves being symmetrically disposed in lock body；The hydraulic valve includes valve body and the spool positioned at valve inner, on valve body
It is provided with A tap holes；
The oilhole be connected with the A tap holes of the hydraulic valve being opened on lock body；
Front end is abutted with hydraulic pressure valve core, and 2 push rods of valve body external symmetry setting are stretched out in rear end；
2 putting back-end portions are fixedly connected, the sliding shoe promoted can be controlled jointly with 2 push rods；
It is characterized in that：
Position limitation protection section is provided on the valve body, the position limitation protection section is hollow structure, and front end is fixedly connected with the valve body,
Rear end has annular surface；
Push rod front end passes through the internal cavity of position limitation protection section to be abutted with spool, when rear end is advanced into extreme position and limits
The annular surface of section is protected to abut；
Position limitation protection section offers the B tap holes be connected with the oilhole on lock body in side wall.
2. hydraulic lock according to claim 1, it is characterised in that：The B tap holes of the position limitation protection section offer multiple.
3. hydraulic lock according to claim 1, it is characterised in that：It is provided with sealing ring between the sliding shoe and lock body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721500843.3U CN207621100U (en) | 2017-11-13 | 2017-11-13 | A kind of hydraulic lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721500843.3U CN207621100U (en) | 2017-11-13 | 2017-11-13 | A kind of hydraulic lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207621100U true CN207621100U (en) | 2018-07-17 |
Family
ID=62828491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721500843.3U Active CN207621100U (en) | 2017-11-13 | 2017-11-13 | A kind of hydraulic lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207621100U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067714A (en) * | 2019-03-13 | 2019-07-30 | 钟彪 | A kind of axial plunger pump or motor |
| CN112922916A (en) * | 2021-03-15 | 2021-06-08 | 徐州徐工随车起重机有限公司 | Variable damping hydraulic control one-way valve |
-
2017
- 2017-11-13 CN CN201721500843.3U patent/CN207621100U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067714A (en) * | 2019-03-13 | 2019-07-30 | 钟彪 | A kind of axial plunger pump or motor |
| CN112922916A (en) * | 2021-03-15 | 2021-06-08 | 徐州徐工随车起重机有限公司 | Variable damping hydraulic control one-way valve |
| CN112922916B (en) * | 2021-03-15 | 2023-08-08 | 徐州徐工随车起重机有限公司 | Damping-variable hydraulic control one-way valve |
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