CN202756002U - Two-way lockup valve used for hydraulic support - Google Patents
Two-way lockup valve used for hydraulic support Download PDFInfo
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- CN202756002U CN202756002U CN 201220350906 CN201220350906U CN202756002U CN 202756002 U CN202756002 U CN 202756002U CN 201220350906 CN201220350906 CN 201220350906 CN 201220350906 U CN201220350906 U CN 201220350906U CN 202756002 U CN202756002 U CN 202756002U
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- cavity
- plug
- hydraulic support
- housing
- valve core
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Abstract
A two-way lockup valve used for a hydraulic support comprises a shell body (1), two one-way valves integrated on the shell body (1), and plugs used for fixing the one-way valves to the shell body (1). Due to the design of the two one-way valves, communication of a stand column of the hydraulic support and a high-pressure liquid source is guaranteed, and therefore reliability of the hydraulic support is improved.
Description
Technical field
The utility model relates to a kind of bidirectional locking valve, especially a kind of bidirectional locking valve for hydraulic support.
Background technology
Raising along with the mechanical degree of mole, guarantee the safety of development end, hydraulic support is the key equipment of comprehensive mechanical coal mining, hydraulic support is the support apparatus of colliery fully-mechanized coalface, to combine the key equipment of adopting, therefore hydraulic support is an important mine device, the reliability of hydraulic support mainly depends on the reliability of hydraulic package, wherein the damage of valve will directly cause hydraulic support to lose efficacy or misoperation, cause personal injury and work plane roof fall accident, even work plane is stopped production, the valve for roof support is the important component that guarantees that hydraulic support works under coal mine, also is the most accurate in the support, the parts of most critical are at existing lock valve for hydraulic support, also do not have a kind of combined bidirectional lock valve, have very high reliability.
Summary of the invention
In order to overcome above-mentioned technical disadvantages, the purpose of this utility model provides a kind of bidirectional locking valve for hydraulic support, has therefore improved the unfailing performance of hydraulic support.
For achieving the above object, the technical scheme that the utility model is taked is: include housing, be integrated in two one way valves on the housing, be used for one way valve is fixed on plug on the housing.
In use, an one way valve is communicated with the column of hydraulic support, when abnormal conditions occurring, again another one way valve is communicated with the column of hydraulic support, thereby protect the normal operation of levying column, owing to having designed two one way valves, guaranteed the column of hydraulic support and being communicated with of high pressure liquid source, therefore improved the unfailing performance of hydraulic support.
The utility model has designed, include nonreturn valve core I, nonreturn valve core II, plug I and plug II, in housing, be provided with two cavity I that be arranged in parallel and cavity II, in the cavity I, be provided with import and outlet, in the cavity II, be provided with import and outlet, the nonreturn valve core I is arranged in the cavity I, port in the cavity I is provided with the plug I, the nonreturn valve core II is arranged in the cavity II, port in the cavity II is provided with the plug II, and plug I and plug II are set to respectively connect with the housing screw-type.
The utility model has designed, nonreturn valve core is set to include end socket, pedestal, spring and expansion link, end socket is arranged on the entrance point of cavity, pedestal is set to connect with the plug contact, one end of expansion link is set to connect with pedestal and the other end connects with end socket, is provided with spring at expansion link.
Description of drawings
Fig. 1 is schematic diagram of the present utility model:
Fig. 2 is the structural representation of nonreturn valve core.
The specific embodiment
Accompanying drawing is first embodiment of the present utility model, specify by reference to the accompanying drawings the present embodiment, include housing 1, nonreturn valve core I 2, nonreturn valve core II 3, plug I 4 and plug II 5, in housing 1, be provided with two cavity I 21 that be arranged in parallel and cavity II 31, in cavity I 21, be provided with import 22 and outlet 23, in cavity II 31, be provided with import 32 and outlet 33, nonreturn valve core I 2 is arranged in the cavity I 21, port in cavity I 21 is provided with plug I 4, nonreturn valve core II 3 is arranged in the cavity II 31, port in cavity II 31 is provided with plug II 5, and plug I 4 and plug II 5 are set to respectively connect with housing 1 screw-type.
In the present embodiment, nonreturn valve core is set to include end socket 61, pedestal 62, spring 63 and expansion link 64, end socket 61 is arranged on the entrance point of cavity, pedestal 62 is set to connect with the plug contact, one end of expansion link 64 is set to connect with pedestal 62 and the other end connects with end socket 61, is provided with spring 63 at expansion link 64.
In the present embodiment, adopted the structure of plug-in mounting spool, to satisfy better user's instructions for use, the sealing of product high and low pressure is reliable, long service life, be the element of coal mine underground hydraulic support frame system, open and close to make control column or oil cylinder feed liquor and return liquid by valve, reach the purpose that supports and unload.Reversible lock adopts the double hydraulic control unloading, and its nominal flow rate is 80L/min, and nominal pressure is 50Mpa, and sealing is reliable, and long service life satisfies the instructions for use of hydraulic support, guarantees that hydraulic support moves smoothly.Long service life is not fragile, has saved especially resource and has improved economic benefit.
The utlity model has lower characteristics:
1, owing to having designed two one way valves, guaranteed the column of hydraulic support and being communicated with of high pressure liquid source, so improved the unfailing performance of hydraulic support.
2, owing to having designed housing 1, plug I 4 and plug II 5, high to the integrated degree of one way valve, volume is little.
3, owing to having designed plug I 4 and plug II 5, good airproof performance, the withstand voltage height that bears.
Within being used for the bidirectional locking valve technology field of hydraulic support; Everyly include housing 1, be integrated in two one way valves on the housing 1, be used for one way valve is fixed on the technology contents of the plug on the housing 1 all in protection domain of the present utility model.
Claims (3)
1. bidirectional locking valve that is used for hydraulic support; It is characterized in that: include housing (1), be integrated in two one way valves on the housing (1), be used for one way valve is fixed on plug on the housing (1).
2. the bidirectional locking valve for hydraulic support according to claim 1; It is characterized in that: include nonreturn valve core I (2), nonreturn valve core II (3), plug I (4) and plug II (5), in housing (1), be provided with two cavity I (21) that be arranged in parallel and cavity II (31), in cavity I (21), be provided with import (22) and outlet (23), in cavity II (31), be provided with import (32) and outlet (33), nonreturn valve core I (2) is arranged in the cavity I (21), port in cavity I (21) is provided with plug I (4), nonreturn valve core II (3) is arranged in the cavity II (31), port in cavity II (31) is provided with plug II (5), and plug I (4) and plug II (5) are set to respectively connect with housing (1) screw-type.
3. the bidirectional locking valve for hydraulic support according to claim 2; It is characterized in that: nonreturn valve core is set to include end socket (61), pedestal (62), spring (63) and expansion link (64), end socket (61) is arranged on the entrance point of cavity, pedestal (62) is set to connect with the plug contact, one end of expansion link (64) is set to connect with pedestal (62) and the other end connects with end socket (61), is provided with spring (63) at expansion link (64).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220350906 CN202756002U (en) | 2012-07-19 | 2012-07-19 | Two-way lockup valve used for hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220350906 CN202756002U (en) | 2012-07-19 | 2012-07-19 | Two-way lockup valve used for hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202756002U true CN202756002U (en) | 2013-02-27 |
Family
ID=47735189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220350906 Expired - Fee Related CN202756002U (en) | 2012-07-19 | 2012-07-19 | Two-way lockup valve used for hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202756002U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673601A (en) * | 2014-11-21 | 2016-06-15 | 上海新跃仪表厂 | Zero-leakage hydraulic zero position lock |
-
2012
- 2012-07-19 CN CN 201220350906 patent/CN202756002U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673601A (en) * | 2014-11-21 | 2016-06-15 | 上海新跃仪表厂 | Zero-leakage hydraulic zero position lock |
| CN105673601B (en) * | 2014-11-21 | 2017-11-07 | 上海新跃仪表厂 | A kind of Zero-leakage hydraulic zero-bit 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: 20130227 Termination date: 20130719 |