CN202047848U - One-way lock - Google Patents
One-way lock Download PDFInfo
- Publication number
- CN202047848U CN202047848U CN2011201753611U CN201120175361U CN202047848U CN 202047848 U CN202047848 U CN 202047848U CN 2011201753611 U CN2011201753611 U CN 2011201753611U CN 201120175361 U CN201120175361 U CN 201120175361U CN 202047848 U CN202047848 U CN 202047848U
- Authority
- CN
- China
- Prior art keywords
- valve
- opening
- mouth
- core assembly
- valve core
- 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 provides a one-way lock, comprising a valve body, a valve core assembly, a piston, and a big spring, a valve chamber, an A opening, an A1 opening, a K opening, and a P opening are disposed in the valve body, the A opening, the A1 opening, the K opeing, and the P opening are communicated with the valve chamber, a valve housing, a small spring, a valve core, a valve base, a keeping sleeve, and a valve sleeve form the valve assembly via fastening screw connections, the valve core and the valve base conical surface are in a hard sealing, and the valve core assembly is installed in the valve chamber as an integral inserting piece. The one-way lock is used for hydraulic props for a mining fully mechanized working surface, and is advantageous in that, structure is compact, the valve core and the valve base conical surface are in a hard sealing, and the sealing closeness performance is reliable. The valve core assembly, as an integral inserting piece, is installed in the valve chamber via a special tool, and whole detachment of the valve core assembly can be performed, facilitating underground maintenance work of coal mine maintenance workers.
Description
Technical field
The utility model relates to a kind of unidirectional lock, the unidirectional lock that to refer in particular to a kind of metered flow that is used for the coal mine fully-mechanized mining working hydraulic support be 80L/min.
Background technology
Unidirectional lock is used for hydraulic support, in order to block the rod chamber of jack, reaches the relative position that keeps jack.But the unidirectional lock construction that is used for the hydraulic support loop at present is comparatively complicated, and dismounting is difficult, and contamination resistance is poor.
The utility model content
It is the unidirectional lock of 80L/min that the purpose of this utility model is to provide a kind of metered flow that is used for the coal mine fully-mechanized mining working hydraulic support, and it adopts the plug-in structure, and compact conformation is convenient to installation and maintenance, the hermetically closing dependable performance, and flow is big, and the pressure loss is little.
For achieving the above object, the solution that the utility model is taked is: a kind of unidirectional lock, it comprises valve body, core assembly, piston, big spring, have valve pocket, A mouth, A1 mouth, K mouth, P mouth in the valve body, A mouth, A1 mouth, K mouth, P mouth communicate with valve pocket, valve casing, little spring, spool, valve seat, maintainance set and valve pocket connect to form core assembly by trip bolt, and the spool and the valve seat conical surface seal firmly, and core assembly is made the as a whole plug connector valve pocket of packing into.
The utility model advantage is simple in structure, compact, is convenient to installation and maintenance, and contamination resistance is strong, and is shock-resistant, and sealing is reliable.
Description of drawings
Fig. 1 is that master of the present utility model looks cross-sectional view.
Among the figure: 1, valve body, 2, valve casing, 3, little spring, 4, spool, 5, trip bolt, 6, valve seat, 7, maintainance set, 8, valve pocket, 9, valve pocket, 10, big spring, 11, piston, 12, the K mouth, 13, the P mouth, 14, the A mouth, 15, the A1 mouth.
The specific embodiment
Below in conjunction with example and accompanying drawing thereof the utility model is remake description.
Referring to Fig. 1, the unidirectional lock of a kind of plug-in, it comprises valve body 1, core assembly, piston 11, big spring 10, have valve pocket 9, A mouth 14, A1 mouth 15, K mouth 12, P mouth 13 in the valve body, A mouth 14, A1 mouth 15, K mouth 12, P mouth 13 communicate with valve pocket 9, valve casing 2, little spring 3, spool 4, valve seat 6, maintainance set 7 and valve pocket 8 connect to form core assembly by tight state screw 5, and spool 4 seals firmly with valve seat 6 conical surfaces, and core assembly is made the as a whole plug connector valve pocket 9 of packing into.
Present embodiment is the unidirectional lock of FDD80/50C, and metered flow: 80L/min, operating pressure: 50MPa, working media are 5% oil emulsion, 95% neutral water mix emulsion fluid.
Claims (1)
1. unidirectional lock, it comprises valve body (1), core assembly, piston (11), big spring (10), it is characterized in that: have valve pocket (9) in the valve body, A mouth (14), A1 mouth (15), K mouth (12), P mouth (13), A mouth (14), A1 mouth (15), K mouth (12), P mouth (13) communicates with valve pocket (9), valve casing (2), little spring (3), spool (4), valve seat (6), maintainance set (7) and valve pocket (8) connect to form core assembly by trip bolt (5), spool (4) and valve seat (6) conical surface seal firmly, and core assembly is made the as a whole plug connector valve pocket (9) of packing into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201753611U CN202047848U (en) | 2011-05-22 | 2011-05-22 | One-way lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201753611U CN202047848U (en) | 2011-05-22 | 2011-05-22 | One-way lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202047848U true CN202047848U (en) | 2011-11-23 |
Family
ID=44988159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201753611U Expired - Fee Related CN202047848U (en) | 2011-05-22 | 2011-05-22 | One-way lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202047848U (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 |
-
2011
- 2011-05-22 CN CN2011201753611U patent/CN202047848U/en not_active Expired - Fee Related
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 | ||
| C56 | Change in the name or address of the patentee |
Owner name: FENGLONG HIGH-TECH HYDRAULIC CO., LTD. Free format text: FORMER NAME: FENGLONG HYDRAULIC CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Nineteen Yueqing Economic Development Zone, Zhejiang, Wei Road, 325600 Patentee after: Hydraulic Limited by Share Ltd Address before: Nineteen Yueqing Economic Development Zone, Zhejiang, Wei Road, 325600 Patentee before: Fenglong Hydraulic Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111123 Termination date: 20200522 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |