CN202832578U - Large-flow hydraulic control one-way valve - Google Patents
Large-flow hydraulic control one-way valve Download PDFInfo
- Publication number
- CN202832578U CN202832578U CN 201220464475 CN201220464475U CN202832578U CN 202832578 U CN202832578 U CN 202832578U CN 201220464475 CN201220464475 CN 201220464475 CN 201220464475 U CN201220464475 U CN 201220464475U CN 202832578 U CN202832578 U CN 202832578U
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Abstract
The utility model discloses a large-flow hydraulic control one-way valve which comprises a valve body, a valve sleeve, a valve cores, a valve base and an ejector rod, a liquid crossing cavity is arranged on the valve base, the ejector rod is arranged inside the valve base, and a limit block is arranged inside the valve base, on the position, close to the liquid crossing cavity. The head portion of the ejector rod penetrates through the limit block and stretches into the liquid crossing cavity of the valve base, and an oil storage cavity is formed between the tail end portion of the ejector rod and the inner wall of the end portion of the valve body. The valve cores which are arranged in the valve sleeve in a built in mode consist of a large valve core and a small valve core, the large valve core is sleeved outside the small valve core, the large valve core and the valve base are connected in a sealed mode, the head portion of the small valve core stretches outside the large valve core, three working openings which are provided for entering into and going out of hydraulic oil are arranged on the valve body, one working opening is communicated with the oil storage cavity, one working opening is communicated with the liquid crossing cavity of the valve base, and one working opening is communicated with a liquid crossing channel which is arranged on the valve sleeve. Compared with the prior art, the large-flow hydraulic control one-way valve is simple in structure, simple in installation, convenient to dismantle and maintain, little in hydraulic impact in unloading, and long in service life. The large-flow hydraulic control one-way valve is provided with two valve cores.
Description
Technical field
The utility model relates to the Hydraulic Elements in the coal mine hydraulic supporting hydraulic circuit, and specifically, the utility model relates to a kind of large flow pilot operated check valve.
Background technology
Since coal mine fully-mechanized mining begins, because the difference of various coal mining environment has had stricter requirement to hydraulic support and supporting equipment.The large flow pilot operated check valve flow that uses at present is little, during off-load hydraulic shock large, each component and bulk life time to valve all can reduce, and hydraulic control one-way valve is combined by a lot of structural members, change seal and will dismantle a lot of parts, the very inconvenience in the down-hole, a lot of problems are perplexing the normal operation production of underground hydraulic support frame.
The utility model content
Little, long service life and the installation and maintenance of hydraulic shock large flow pilot operated check valve easily when technical problem to be solved in the utility model provides a kind of off-load.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of large flow pilot operated check valve, it comprises valve body, valve pocket, spool, valve seat and push rod, valve seat was provided with sap cavity, push rod is positioned at the inside of valve seat, inside at valve seat also is provided with limited block near the position of crossing sap cavity, the head of push rod passes limited block and stretches into crossing in the sap cavity of valve seat, also overlapping at the middle part of push rod has return spring, return spring one end is against on the limited block, the other end is against on the protuberance that arranges on the shaft of push rod, be formed with shoe cream room between the terminal part of push rod and the inner wall of end of valve body, the spool that is built in the valve pocket is divided into big valve core and small valve core, big valve core also is enclosed within the outside of small valve core, big valve core is connected with valve base sealing, between small valve core and valve pocket, also be provided with spring, spring promotes small valve core makes the head of spool stretch out in the outside of big valve core, be provided with three working holes that pass in and out for hydraulic oil at valve body, one of them working hole is communicated with shoe cream room, working hole is communicated with the sap cavity of crossing of valve seat, and the feed pathway that arranges on working hole and the valve pocket is communicated with.
Be provided with valve pad at described valve seat and the described big valve core place of being tightly connected.
The utility model adopts technique scheme, and compared with prior art, this large flow pilot operated check valve is simple in structure, and installation is simple, detachable maintaining is convenient, has two spools, little, the long service life of hydraulic shock during off-load.
Description of drawings
Fig. 1 is the structural representation of hydraulic control one-way valve of the present utility model;
Mark among the above-mentioned figure is: 1, valve pocket; 2, big valve core; 3, valve body; 4, valve seat; 5, return spring; 6, push rod; 7, cross sap cavity; 8, small valve core; 9, limited block; 10, feed pathway; 11, valve pad; 12, spring; 13, shoe cream room.
The specific embodiment
Be illustrated in figure 1 as a kind of large flow pilot operated check valve of the present utility model, it comprises valve body 3, valve pocket 1, spool, valve seat 4 and push rod 6, valve seat 4 was provided with sap cavity 7, push rod 6 is positioned at the inside of valve seat 4, inside at valve seat 4 also is provided with limited block 9 near the position of crossing sap cavity 7, the head of push rod 6 passes limited block 9 and stretches into crossing in the sap cavity 7 of valve seat 4, also overlapping at the middle part of push rod 6 has return spring 5, return spring 5 one ends are against on the limited block 9, the other end is against on the protuberance terminal on the shaft of push rod 6, the external diameter of this protuberance is greater than the shaft diameter of the remainder of push rod 6, protuberance slides along the inwall of valve seat 4, is formed with shoe cream room 13 between the inner wall of end of the protuberance of the end of push rod 6 and valve body 3.In valve pocket 1, have two spools, be respectively big valve core 2 and small valve core 8, big valve core 2 also is enclosed within the outside of small valve core 8, small valve core 8 is in big valve core 2 interior slips, big valve core 2 externally is tightly connected with valve seat 4, between small valve core 8 and valve pocket 1, also be provided with spring 12, spring 12 promotes small valve core 8 makes the head of spool stretch out in the outside of big valve core 2, move towards spool under the promotion of push rod 6 fluid in shoe cream room 13, at first contact with small valve core 8, promote small valve core 8 and move, off-load this moment amount is less, when push rod 6 moves to when contacting with big valve core 2, promote big valve core 2 and move, off-load this moment amount is larger.Be provided with three working holes that pass in and out for hydraulic oil at valve body 3, such as the working hole A among the figure, working hole PA and working hole PB, wherein working hole PB is communicated with shoe cream room 13, working hole PA is communicated with the excessively sap cavity 7 of valve seat 4, the feed pathway 10 that arranges on working hole A and the valve pocket 1 is communicated with, and has working hole A' on the valve pocket 1.Compared with prior art, this large flow pilot operated check valve is simple in structure, and installation is simple, detachable maintaining is convenient, has two spools, little, the long service life of hydraulic shock during off-load.
In addition, as shown in Figure 1, this hydraulic control one-way valve is provided with valve pad 11 at valve seat 4, and big valve core 2 is tightly connected with valve pad 11, to strengthen sealing performance.In order further to strengthen sealing performance, can be directly for firmly being tightly connected between big valve core 2 and the valve seat 4, adopt metal material to make big valve core 2, and to adopt the vacuum hardening technology, and to finish grind again after quenching, hardness is high, sealing with respect to softwood matter, firmly seal not only good seal performance, go back ability super-pressure, the one way valve long service life.
The above has carried out exemplary description to the utility model by reference to the accompanying drawings; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out; or without improving 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 (2)
1. large flow pilot operated check valve, it is characterized in that: comprise valve body, valve pocket, spool, valve seat and push rod, valve seat was provided with sap cavity, push rod is positioned at the inside of valve seat, inside at valve seat also is provided with limited block near the position of crossing sap cavity, the head of push rod passes limited block and stretches into crossing in the sap cavity of valve seat, also overlapping at the middle part of push rod has return spring, return spring one end is against on the limited block, the other end is against on the protuberance that arranges on the shaft of push rod, be formed with shoe cream room between the terminal part of push rod and the inner wall of end of valve body, the spool that is built in the valve pocket is divided into big valve core and small valve core, big valve core also is enclosed within the outside of small valve core, big valve core is connected with valve base sealing, between small valve core and valve pocket, also be provided with spring, spring promotes small valve core makes the head of spool stretch out in the outside of big valve core, be provided with three working holes that pass in and out for hydraulic oil at valve body, one of them working hole is communicated with shoe cream room, working hole is communicated with the sap cavity of crossing of valve seat, and the feed pathway that arranges on working hole and the valve pocket is communicated with.
2. large flow pilot operated check valve according to claim 1 is characterized in that: be provided with valve pad at described valve seat and the described big valve core place of being tightly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220464475 CN202832578U (en) | 2012-09-13 | 2012-09-13 | Large-flow hydraulic control one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220464475 CN202832578U (en) | 2012-09-13 | 2012-09-13 | Large-flow hydraulic control one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202832578U true CN202832578U (en) | 2013-03-27 |
Family
ID=47944310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220464475 Expired - Fee Related CN202832578U (en) | 2012-09-13 | 2012-09-13 | Large-flow hydraulic control one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202832578U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103466085A (en) * | 2013-07-24 | 2013-12-25 | 宁波大学 | Self-adaptive hydraulic multi-antenna regulator capable of maintaining balance of object falling from high altitude |
| CN105782525A (en) * | 2016-05-12 | 2016-07-20 | 宁波市加力特机械有限公司 | Pressure relief valve for platform car |
| CN107605523A (en) * | 2017-09-22 | 2018-01-19 | 鸿大智能机械有限公司 | The hydraulic package of hydraulic control one-way valve |
| CN109236779A (en) * | 2018-10-31 | 2019-01-18 | 北京天地玛珂电液控制***有限公司 | Hydraulic control one-way valve and pressure release assembly |
| CN113090296A (en) * | 2021-05-14 | 2021-07-09 | ***高科液压股份有限公司 | Large-drift-diameter hydraulic control one-way valve |
-
2012
- 2012-09-13 CN CN 201220464475 patent/CN202832578U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103466085A (en) * | 2013-07-24 | 2013-12-25 | 宁波大学 | Self-adaptive hydraulic multi-antenna regulator capable of maintaining balance of object falling from high altitude |
| CN103466085B (en) * | 2013-07-24 | 2015-12-23 | 宁波大学 | A kind of self-adaptive hydraulic many feelers regulating control keeping falling object from high altitude to balance |
| CN105782525A (en) * | 2016-05-12 | 2016-07-20 | 宁波市加力特机械有限公司 | Pressure relief valve for platform car |
| CN107605523A (en) * | 2017-09-22 | 2018-01-19 | 鸿大智能机械有限公司 | The hydraulic package of hydraulic control one-way valve |
| CN109236779A (en) * | 2018-10-31 | 2019-01-18 | 北京天地玛珂电液控制***有限公司 | Hydraulic control one-way valve and pressure release assembly |
| CN109236779B (en) * | 2018-10-31 | 2020-07-21 | 北京天地玛珂电液控制***有限公司 | Hydraulic control one-way valve and pressure relief assembly |
| CN113090296A (en) * | 2021-05-14 | 2021-07-09 | ***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 | ***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 |
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. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20210913 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |