CN201322014Y - Manual pilot valve - Google Patents
Manual pilot valve Download PDFInfo
- Publication number
- CN201322014Y CN201322014Y CNU2008201244605U CN200820124460U CN201322014Y CN 201322014 Y CN201322014 Y CN 201322014Y CN U2008201244605 U CNU2008201244605 U CN U2008201244605U CN 200820124460 U CN200820124460 U CN 200820124460U CN 201322014 Y CN201322014 Y CN 201322014Y
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- CN
- China
- Prior art keywords
- valve
- ball
- handle
- feed liquor
- manual pilot
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- 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 - Lifetime
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- Mechanically-Actuated Valves (AREA)
Abstract
The utility model discloses a manual pilot valve, which comprises a valve body (14) and a valve core, wherein, the valve core is arranged in the valve body (14); the valve core includes a pressure level (1), a liquid return ball (2), a liquid return valve (3), an ejector pin (9), a liquid inlet valve (5), a liquid inlet ball (6) and a spring (7) which are sequentially arranged; a working chamber is formed between the liquid return valve (3) and a valve body; a liquid inlet cavity (8) is formed below the liquid inlet valve (5); a lever (11) and a handle (12) are connected to the pressure level (1); and a torsion spring (13) which is arranged on the handle (12) is used for increasing the torque of the handle (12). The utility model has the advantages that the torque of the handle (12) is increased through the torsion spring (13) to ensure that the error action of a valve is avoided; and the structure is compact and reasonable, so that the volume of the whole valve can be reduced; and meanwhile, the ejector pin (9) and a valve ball adopt a split-type structure, so that the processing difficulty is decreased, the reliability of the valve is improved, and the service life of the valve is prolonged.
Description
Technical field
The utility model belongs to hydraulic prop Equipment Control valve under the coal mine, particularly a kind ofly controls pilot valve action by manually-operable, and then the manual pilot valve of control main control valve liquid flow path direction.
Background technique
Hand-operated direction valve is in reality is mined, and inconvenience changes under original automatical control system and the correlation circumstance, and the function of expanding coal mine underground hydraulic support frame requires a kind of element.Existing down-hole has manually and the electromagnetism dual mode with pilot valve, is respectively applied for different working environment at coal mines.
On May 9th, 2007 disclosed application number: 200620031511.0, the model utility that the name of Zhengzhou Hengda Hydraulic Engineer Center is called " 23 logical hand hydraulically controlled pilot valves " discloses the manual pilot valve of a kind of colliery downhole operations support, these 23 logical hand hydraulically controlled pilot valves, comprise valve body, be opened in the valve pocket in the valve body and be arranged on the interior spool of valve pocket, and be opened in be connected with valve pocket on the valve body return the sap cavity mouth, pressure accent and control mouth, be provided with a L shaped handle that turns in an end of spool tail, the described long connecting lever that turns handle extends outside the valve body, and its short connecting lever is hinged by bearing pin and valve body.This model utility can be used for downhole operations, and installation and maintenance are convenient.But its shortcoming is: the moment of torsion that turns handle is little, and misoperation takes place easily, and sealing valve port is end face seal, and its structure contamination resistance is low, and difficult processing is easily revealed in actual use.
The model utility content
The purpose of this utility model is, overcomes the deficiencies in the prior art, provide a kind of safe and reliable, difficulty of processing is low, the manual pilot valve of good seal.
Technical solution of the present utility model is, a kind of manual pilot valve, comprise valve body and spool, spool is packed in the valve body, and spool comprises depression bar that order installs, returns the liquid ball, returns liquid valve, push rod, feed liquor valve, feed liquor ball and spring, forms active chamber between described time liquid valve and valve body, feed liquor valve below is an admission chamber, on depression bar, connect lever and handle, a torsion spring is installed on handle, be used to increase the moment of torsion of handle.
Described push rod adopts split-type structural with time liquid ball and feed liquor ball.
In described admission chamber, filter screen is housed.
In described active chamber, filter screen is housed.
The material of described valve body, depression bar, time liquid ball, time liquid valve, push rod, feed liquor valve, feed liquor ball and spring is stainless steel or copper.
The utility model pilot valve beneficial effect compared with prior art is:
(1) the utility model is installed a torsion spring on handle, has increased the moment of torsion of handle, makes valve avoid taking place misoperation.And compact structure is reasonable, can make boundary dimension small and exquisite, and then reduces the volume of whole valve.
(2) push rod of the present utility model and valve ball adopt split-type structural, so both can reduce difficulty of processing, can guarantee that again the highi degree of accuracy of valve ball and valve seat cooperates requirement, have reduced frictional force, have improved reliability and working life.
(3) in addition, filter screen all is housed, prevents that impurity and dirt from entering in the valve, guaranteed the proper functioning of valve at the admission chamber and the active chamber of valve.
(4) this manual pilot valve structural member adopts highly corrosion resistant high-strength stainless steel and copper spare entirely, both can satisfy the safety of coal mines standard, can adapt to the abominable media environment in down-hole again.
Description of drawings
Fig. 1 is the sectional view of the manual pilot valve of the present invention;
Fig. 2 is the left view of the manual pilot valve of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of manual pilot valve, comprise valve body 14 and spool, spool is packed in the valve body 14, spool comprises depression bar 1, time liquid ball 2, time liquid valve 3, push rod 9, feed liquor valve 5, feed liquor ball 6 and the spring 7 that order is installed, on depression bar 1, connect lever 11 and handle 12, a torsion spring 13 is installed on handle 12, be used to increase the moment of torsion of handle 12.
Returning formation active chamber 4 between liquid valve 3 and the valve body, feed liquor valve 5 belows are admission chamber 8.
Depression bar 1, time liquid ball 2, time liquid valve 3, push rod 9, feed liquor valve 5, feed liquor ball 6 and spring 7 are copper in the present embodiment, also can adopt stainless steel material.
Working principle of the present utility model is: as accompanying drawing 1, this valve is made up of two ball valves, and valve ball and valve seat all adopt hard material.When being in original state, feed liquor valve 5 cuts out under the effect of spring 7, opens and return liquid valve 3, and active chamber 4 is communicated with time sap cavity 10.When operating grip 12, depression bar 1 stressed moving down, pressure spring 7.When spring force reaches an enough numerical value, promoting feed liquor ball 6 by push rod 9 fully opens, make back 2 pairs of valves of liquid ball produce a stable closing pressure, liquid valve 3 cuts out, feed liquor valve 5 is opened, active chamber 4 is communicated with admission chamber 8, and this moment, working solution was flow to the control chamber of main control valve through active chamber 4 by admission chamber 8.
When manually-operable stopped, because spring 7 active forces, valve automatically reset, and feed liquor valve 5 cuts out, and returned liquid valve 3 and opened.
The foregoing description is a kind of enumerating of the present utility model, and those skilled in the art can carry out various improvement and replacing not departing from according to different designing requirements and design parameter under the situation of the present utility model, fall into protection domain of the present utility model equally.
Claims (5)
1, a kind of manual pilot valve, comprise valve body (14) and spool, spool is packed in the valve body (14), it is characterized in that: spool comprises depression bar (1), time liquid ball (2), time liquid valve (3), push rod (9), feed liquor valve (5), feed liquor ball (6) and the spring (7) that order is installed, form active chamber (4) between described time liquid valve (3) and the valve body, feed liquor valve (5) below is admission chamber (8), go up connection lever (11) and handle (12) at depression bar (1), go up installation one torsion spring (13) at handle (12), be used to increase the moment of torsion of handle (12).
2, according to a kind of manual pilot valve of claim 1, it is characterized in that: described push rod (9) adopts split-type structural with time liquid ball (2) and feed liquor ball (6).
3, according to a kind of manual pilot valve of claim 1, it is characterized in that: described admission chamber is equipped with filter screen in (8).
4, according to a kind of manual pilot valve of claim 1, it is characterized in that: described active chamber is equipped with filter screen in (4).
5, according to a kind of manual pilot valve of claim 1, it is characterized in that: the material of described valve body (14), depression bar (1), time liquid ball (2), time liquid valve (3), push rod (9), feed liquor valve (5), feed liquor ball (6) and spring (7) is stainless steel or copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201244605U CN201322014Y (en) | 2008-12-11 | 2008-12-11 | Manual pilot valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201244605U CN201322014Y (en) | 2008-12-11 | 2008-12-11 | Manual pilot valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201322014Y true CN201322014Y (en) | 2009-10-07 |
Family
ID=41159398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201244605U Expired - Lifetime CN201322014Y (en) | 2008-12-11 | 2008-12-11 | Manual pilot valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201322014Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913263A (en) * | 2012-11-01 | 2013-02-06 | 中煤北京煤矿机械有限责任公司 | Self-filtering sliding valve type high-pressure pilot stop valve |
| CN103321979A (en) * | 2013-06-17 | 2013-09-25 | 龙工（上海）精工液压有限公司 | Handle pilot valve capable of improving excavator inching operation |
| WO2015158014A1 (en) * | 2014-04-18 | 2015-10-22 | 天津华宁电子有限公司 | Mining manual and automatic integrated electromagnetic pilot valve |
| CN106931169A (en) * | 2017-04-17 | 2017-07-07 | 天津华宁电子有限公司 | Mining electromagnetic pilot valve core |
| CN106949283A (en) * | 2017-03-29 | 2017-07-14 | 贵阳小河区天筑精密液压件厂 | A kind of split pilot valve |
-
2008
- 2008-12-11 CN CNU2008201244605U patent/CN201322014Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913263A (en) * | 2012-11-01 | 2013-02-06 | 中煤北京煤矿机械有限责任公司 | Self-filtering sliding valve type high-pressure pilot stop valve |
| CN103321979A (en) * | 2013-06-17 | 2013-09-25 | 龙工（上海）精工液压有限公司 | Handle pilot valve capable of improving excavator inching operation |
| WO2015158014A1 (en) * | 2014-04-18 | 2015-10-22 | 天津华宁电子有限公司 | Mining manual and automatic integrated electromagnetic pilot valve |
| CN106949283A (en) * | 2017-03-29 | 2017-07-14 | 贵阳小河区天筑精密液压件厂 | A kind of split pilot valve |
| CN106931169A (en) * | 2017-04-17 | 2017-07-07 | 天津华宁电子有限公司 | Mining electromagnetic pilot valve core |
| CN106931169B (en) * | 2017-04-17 | 2023-07-21 | 天津华宁电子有限公司 | Mining electromagnetic pilot valve core |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091007 |