CN203925536U - A kind of pushing one-way lock - Google Patents
A kind of pushing one-way lock Download PDFInfo
- Publication number
- CN203925536U CN203925536U CN201420370272.6U CN201420370272U CN203925536U CN 203925536 U CN203925536 U CN 203925536U CN 201420370272 U CN201420370272 U CN 201420370272U CN 203925536 U CN203925536 U CN 203925536U
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- China
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- push rod
- valve
- valve seat
- spool
- valve pocket
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Abstract
The utility model discloses a kind of pushing one-way lock, comprise valve body, valve pocket and the hydraulic package being located in the valve pocket of valve body comprise spool, valve seat and push rod, valve seat was provided with sap cavity, the head of push rod stretches into crossing in sap cavity of valve seat, the port with cross sap cavity connection of the head of spool on valve seat is connected with valve base sealing, on push rod, also cover has return spring, the head shaft of push rod is provided with external screw thread, in valve seat, be provided with limited block near the position of crossing sap cavity, limited block is provided with through hole, through-hole wall be provided with push rod on the suitable internal thread of external screw thread.Pushing one-way lock of the present utility model, valve seat and push rod are for being threaded, push rod can screw in crossing in sap cavity in valve seat, form the hydraulic package of plug-in, make the level of integrated system of whole one-way lock higher, be convenient to installation and the maintenance of one-way lock, install simple, easy to maintenancely, directly just can repair this pushing one-way lock by changing plug-in hydraulic pressure assembly.
Description
Technical field
The utility model relates to the Hydraulic Elements in coal mine hydraulic supporting hydraulic circuit, and specifically, the utility model relates to a kind of pushing one-way lock.
Background technology
Pushing one-way lock is in hydraulic system, to play the control element of controlling one way valve opening and closing, in hydraulic support, mainly play support and the unloading effect of controlling one-way cylinder, generally be used on flexible jack, because this structure can keep unidirectional feed liquor to keep the single effect pressure-bearing of oil cylinder, simultaneously, in the time claiming back, by the hydraulic control mouth effect on one-way lock, spool is opened, stable retraction.
Current pushing one-way lock comprises valve body and is built in valve pocket, spool, valve seat and the push rod in valve body, valve seat is provided with unloading cavity, push rod is located at the inside of valve seat and its head is inserted in valve seat unloading cavity and acted on mutually with the head of spool, on valve body, be also provided with four interfaces, for being connected with other parts, the one-way lock part of this structure is more, can cause assembling more loaded down with trivial details, and can cause maintenance inconvenient, and application life is low, and easily impact is produced.
Utility model content
The utility model provides a kind of pushing one-way lock, object be guarantee to install simple and easy to maintenance.
To achieve these goals, the technical scheme that the utility model is taked is: a kind of pushing one-way lock, comprise valve body, valve pocket and be located at the hydraulic package in the valve pocket of valve body, valve pocket inserts in valve pocket and is connected with valve body, hydraulic package comprises spool, valve seat and push rod, valve seat was provided with sap cavity, the head of push rod stretches into crossing in sap cavity of valve seat, spool is built in valve pocket, between spool and valve pocket, be also provided with spring, spring promote head that spool makes spool on valve seat with cross the port that sap cavity is communicated with and be connected with valve base sealing, on push rod, also cover has return spring, the head shaft of described push rod is provided with external screw thread, in described valve seat, be provided with limited block near the position of crossing sap cavity, limited block is provided with through hole, through-hole wall be provided with push rod on the suitable internal thread of external screw thread, described return spring one end is against on limited block, the other end is against the afterbody of push rod, described valve body is provided with three working holes for hydraulic oil turnover, one of them working hole is positioned at push rod afterbody one side, coaxial with described valve pocket and be communicated with valve pocket, a working hole is communicated with the sap cavity of crossing of valve seat, and a working hole is communicated with the feed pathway arranging on described valve pocket.
Between described spool and described valve seat for being firmly tightly connected.
The head of described spool is frustum structure, and described push rod starts to contact in the port of described valve seat with spool.
In described valve body, be provided with two liquid pass holes that are communicated with described valve pocket and are positioned at valve pocket the same side, two liquid pass holes also lay respectively between a described working hole and valve pocket.
The axis of described liquid pass hole parallels with the axis of the described working hole being connected.
Pushing one-way lock of the present utility model, valve seat and push rod are for being threaded, push rod can screw in crossing in sap cavity in valve seat, form the hydraulic package of plug-in, make the level of integrated system of whole one-way lock higher, be convenient to installation and the maintenance of one-way lock, install simple, easy to maintenancely, directly just can repair this pushing one-way lock by changing plug-in hydraulic pressure assembly.
Brief description of the drawings
This manual comprises the following drawings, shown in content respectively:
Fig. 1 is the sectional view of the utility model pushing one-way lock;
Fig. 2 is the top view of the utility model pushing one-way lock;
In figure, be labeled as:
1, valve pocket; 2, spool; 3, valve body; 4, valve seat; 5, return spring; 6, push rod; 7, cross sap cavity; 8, port; 9, limited block; 10, feed pathway; 11, valve pocket; 12, spring; 13, the first liquid pass hole; 14, the second liquid pass hole.
Detailed description of the invention
Contrast accompanying drawing below, by the description to embodiment, detailed description of the invention of the present utility model is described in further detail, and object is to help those skilled in the art to have more complete, accurate and deep understanding to design of the present utility model, technical scheme, and contributes to its enforcement.
As depicted in figs. 1 and 2, a kind of pushing one-way lock of the utility model, comprises valve body 3, valve pocket 1 and is located at the hydraulic package in the valve pocket 11 of valve body 3.Valve pocket 11 is to start from a side of valve body 3 to extend towards the inside of valve body 3, and valve pocket 1 inserts in valve pocket 11 and is threaded with valve body 3, and a part for valve body 3 also stretches out in valve body 3 outsides.Hydraulic package comprises spool 2, valve seat 4 and push rod 6, valve seat 4 was provided with sap cavity 7, the head of push rod 6 stretches into crossing in sap cavity 7 of valve seat 4, spool 2 is built in valve pocket 1, between spool 2 and valve pocket 1, be also provided with spring 12, spring 12 promotes head that spool 2 makes spool 2 being tightly connected with crossing port 8 places and the valve seat 4 that sap cavity 7 is communicated with on valve seat 4, on push rod 6, also overlaps and has return spring 5.Compared with prior art, the head shaft of the push rod 6 of this pushing one-way lock is provided with external screw thread, valve seat 4 is interior is provided with limited block 9 near the position of crossing sap cavity 7, on limited block 9 and be provided with a through hole, the inwall of this through hole be provided with push rod 6 on the suitable internal thread of external screw thread, return spring 5 one end are against on limited block 9, and the other end is against the afterbody of push rod 6; Spool 2, valve seat 4 and the push rod 6 of this structure, valve seat 4 and push rod 6 are for being threaded, push rod 6 can screw in crossing in sap cavity 7 in valve seat 4, form the hydraulic package of plug-in, make the level of integrated system of whole pushing one-way lock higher, be convenient to installation and the maintenance of pushing one-way lock, install simple, easy to maintenancely, directly just can repair this pushing one-way lock by changing plug-in hydraulic pressure assembly.In addition, on valve body 3, be also provided with three working holes for hydraulic oil turnover, be respectively working hole A, working hole PA and working hole PB as shown in the figure, on valve pocket 1, there is working hole A', wherein working hole PB is positioned at afterbody one side of push rod 6, coaxial with valve pocket 11 and be communicated with valve pocket 11, working hole PA is communicated with the sap cavity 7 excessively of valve seat 4, working hole A is communicated with the feed pathway 10 arranging on valve pocket 1, working hole A' is coaxial with working hole PB, the axis of working hole A is parallel with the axis of working hole PB, and vertical with the axis of working hole PB with working hole A'.
As shown in Figure 1, between the spool 2 of this pushing one-way lock and valve seat 4, for being firmly tightly connected, spool 2 adopts metal material to make, realize the hard sealing between spool 2 and valve seat 4, with respect to the sealing of softwood matter, firmly seal not only good seal performance, also ability super-pressure, one-way lock long service life.As shown in Figure 1, the head of spool 2 and be frustum structure, the head of spool 2 no longer stretched in sap cavity 7, and 2 port 8 places at valve seat 4 of push rod 6 and spool start to contact, and the structure of spool 2 is simpler, the more compact structure of pushing one-way lock entirety.
As shown in Figure 1, in valve body 3, be provided with two liquid pass holes that are communicated with valve pocket 11 and are positioned at valve pocket 11 the same sides, be respectively the first liquid pass hole 13 and the second liquid pass hole 14, the first liquid pass hole 13 is between working hole A and valve pocket 11, working hole A is communicated with valve pocket 11 by the first liquid pass hole 13, until be communicated with the feed pathway 10 on valve pocket 1, the second liquid pass hole 14 is between working hole PA and valve pocket 11, working hole PA is communicated with valve pocket 11 by the second liquid pass hole 14, and until is communicated with the sap cavity 7 excessively in valve seat 4.
As depicted in figs. 1 and 2, the axis of the first liquid pass hole 13 parallels with the axis of working hole A, the area of the first liquid pass hole 13 is less than the area of working hole A, and the axis of the first liquid pass hole 13 is offset towards push rod 6, make the certain distance in the axis of the first liquid pass hole 13 and the axis interval of working hole A, both disalignments, and the axis of the first liquid pass hole 13 is between the axis of the feed pathway 10 on valve pocket 1 and the axis of working hole A, the groove on corresponding valve pocket 1 surface, position of the first liquid pass hole 13, such the first liquid pass hole 13 is arranged on the sealing not affecting between valve pocket 1 and valve body 3 herein, avoid seal failure.The axis of the second liquid pass hole 14 parallels with the axis of working hole PA, the area of the second liquid pass hole 14 is less than the area of working hole PA, and the axis of the second liquid pass hole 14 is offset towards spool 2, make the certain distance in the axis of the second liquid pass hole 14 and the axis interval of working hole PA, both disalignments, and the groove on corresponding valve seat 4 surfaces, the position of the second liquid pass hole 14, the second liquid pass hole 14 is arranged on the sealing not affecting between valve seat 4 and valve body 3 herein, avoids seal failure.
Below by reference to the accompanying drawings the utility model is exemplarily described.Obviously, the utility model specific implementation is not subject to the restrictions described above.As long as having adopted the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out; Or without improvement, above-mentioned design of the present utility model and technical scheme are directly applied to other occasion, all within protection domain of the present utility model.
Claims (5)
1. a pushing one-way lock, comprise valve body, valve pocket and be located at the hydraulic package in the valve pocket of valve body, valve pocket inserts in valve pocket and is connected with valve body, hydraulic package comprises spool, valve seat and push rod, valve seat was provided with sap cavity, the head of push rod stretches into crossing in sap cavity of valve seat, spool is built in valve pocket, between spool and valve pocket, be also provided with spring, spring promote head that spool makes spool on valve seat with cross the port that sap cavity is communicated with and be connected with valve base sealing, on push rod, also cover has return spring, it is characterized in that: the head shaft of described push rod is provided with external screw thread, in described valve seat, be provided with limited block near the position of crossing sap cavity, limited block is provided with through hole, through-hole wall be provided with push rod on the suitable internal thread of external screw thread, described return spring one end is against on limited block, the other end is against the afterbody of push rod, described valve body is provided with three working holes for hydraulic oil turnover, one of them working hole is positioned at push rod afterbody one side, coaxial with described valve pocket and be communicated with valve pocket, a working hole is communicated with the sap cavity of crossing of valve seat, and a working hole is communicated with the feed pathway arranging on described valve pocket.
2. pushing one-way lock according to claim 1, is characterized in that: between described spool and described valve seat for being firmly tightly connected.
3. pushing one-way lock according to claim 1 and 2, is characterized in that: the head of described spool is frustum structure, and described push rod starts to contact in the port of described valve seat with spool.
4. pushing one-way lock according to claim 3, is characterized in that: in described valve body, be provided with two liquid pass holes that are communicated with described valve pocket and are positioned at valve pocket the same side, two liquid pass holes also lay respectively between a described working hole and valve pocket.
5. pushing one-way lock according to claim 4, is characterized in that: the axis of described liquid pass hole parallels with the axis of the described working hole being connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420370272.6U CN203925536U (en) | 2014-07-04 | 2014-07-04 | A kind of pushing one-way lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420370272.6U CN203925536U (en) | 2014-07-04 | 2014-07-04 | A kind of pushing one-way lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203925536U true CN203925536U (en) | 2014-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420370272.6U Active CN203925536U (en) | 2014-07-04 | 2014-07-04 | A kind of pushing one-way lock |
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| CN (1) | CN203925536U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090296A (en) * | 2021-05-14 | 2021-07-09 | 丰隆高科液压股份有限公司 | Large-drift-diameter hydraulic control one-way valve |
-
2014
- 2014-07-04 CN CN201420370272.6U patent/CN203925536U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090296A (en) * | 2021-05-14 | 2021-07-09 | 丰隆高科液压股份有限公司 | Large-drift-diameter hydraulic control one-way valve |
| CN113090296B (en) * | 2021-05-14 | 2022-02-08 | 丰隆高科液压股份有限公司 | Large-drift-diameter hydraulic control one-way valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171110 Address after: Zhi Zhen Wuhu County in Anhui province Wuhu city Anhui Bay 241000 Wuhu Economic Development Zone Sunshine Road No. 768 building 06 Patentee after: Hongda Intelligent Machinery Co., Ltd. Address before: 241000 Wuhu County, Anhui Province Machinery Industrial Park, Wuhu Patentee before: Julong Group Wuhu Xinglong Hydraulic Co., Ltd. |