CN203296795U - Safety valve with liquid returning function for hydraulic support - Google Patents
Safety valve with liquid returning function for hydraulic support Download PDFInfo
- Publication number
- CN203296795U CN203296795U CN2013203161453U CN201320316145U CN203296795U CN 203296795 U CN203296795 U CN 203296795U CN 2013203161453 U CN2013203161453 U CN 2013203161453U CN 201320316145 U CN201320316145 U CN 201320316145U CN 203296795 U CN203296795 U CN 203296795U
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- CN
- China
- Prior art keywords
- spring
- joint
- hole
- connector
- safety valve
- 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 relates to a safety valve, in particular to a safety valve with a liquid returning function for a hydraulic support. The safety valve with the liquid returning function for the hydraulic support comprises a valve body, a valve element, a connector and a protection hood, wherein a spring is mounted in the valve body, a spring seat is mounted at one end of the spring, a through hole is formed in the center of the spring seat, a pressure adjusting plug is mounted at the other end of the spring and provided with a fastening screw, and a through hole is formed in the center of the pressure adjusting plug. A rear connector is mounted on the right side of the pressure adjusting plug, a through hole is formed in the center of the left side of the rear connector, and a quick inserting hole is formed in the right side of the rear connector. An O-shaped ring is mounted at the connection position of the rear connector and the valve body, a guide sleeve is mounted on the left side of the spring seat, the valve element is mounted in the guide sleeve and provided with a liquid discharging hole, the protection hood is mounted on the outer side of the guide sleeve, the connector is mounted on the left side of the guide sleeve, a filter is mounted at the inner front end of the connector, a spring collar is mounted at the connection position of the filter and the connector, and a check ring is mounted at the connection position of the connector and the protection hood.
Description
Technical field
The utility model relates to a kind of safety valve, particularly a kind of safety valve of taking back the liquid function for hydraulic support.
Background technology
along with improving constantly of underground mining plant machinery degree, safety for abundant safeguard work face, the application of hydraulic support is more and more extensive, the assembly of the degree of reliability of hydraulic support performance and application life and hydraulic system has very large relation, safety valve is exactly important hydraulic package wherein, in the time of gob collapse, the pressure of work plane increases immediately, the column of hydraulic support is stressed also to be increased, so safety valve is opened, highly pressurised liquid ejects around valve body, namely with danger, also there is to a certain degree waste in liquid in support, also there is no a kind of safety valve that can effectively utilize the highly pressurised liquid that ejects.
The utility model content
The utility model, in order to make up the defect of prior art, provides a kind of simple in structure, and the convenient hydraulic support that is used for that uses is taken back the safety valve of liquid function.
The utility model is achieved by the following technical solution:
a kind of safety valve of taking back the liquid function for hydraulic support, comprise valve body, spool, joint and protective cover, in described valve body, spring is housed, spring one end is equipped with spring base, through hole is equipped with in the spring base center, the other end of spring is equipped with the pressure regulation screw plug, on the pressure regulation screw plug, trip bolt is housed, through hole is equipped with in pressure regulation screw plug center, rear joint is equipped with on pressure regulation screw plug right side, through hole is equipped with in center, rear joint left side, quick socket is equipped with on right side, O shape circle is equipped with in rear joint and valve body junction, fairlead is equipped with in described spring base left side, spool is housed in fairlead, outage is housed on spool, protective cover is equipped with in the fairlead outside, joint is equipped with in the fairlead left side, the joint Inner Front End is equipped with strainer, check ring is equipped with in strainer and joint junction, back-up ring is equipped with in joint and protective cover junction.
The beneficial effects of the utility model are: simple in structure, use reliably, and to be convenient to produce, cost is lower, and the possibility that the high-pressure injection liquid of avoiding is hurted sb.'s feelings has reduced the danger while using, and has improved the utilization rate of overflow liquid.
Description of drawings
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing Fig. 1 is structural representation of the present utility model
In figure, 1 joint, 2 fairleads, 3 spools, 4 spring bases, 5 valve bodies, 6 springs, 7 pressure regulation screw plugs, 8 trip bolts, 9 O shape circles, 10 rear joints, 11 check rings, 12 strainers, 13 back-up rings, 14 protective covers, 15 through holes, 16 outages, 17 quick sockets.
The specific embodiment
Accompanying drawing Fig. 1 is a kind of specific embodiment of the present utility model.a kind of safety valve of taking back the liquid function for hydraulic support of this utility model, comprise valve body 5, spool 3, joint 1 and protective cover 14, in described valve body 5, spring 6 is housed, spring 6 one ends are equipped with spring base 4, through hole 15 is equipped with in spring base 4 centers, the other end of spring 6 is equipped with pressure regulation screw plug 7, trip bolt 8 is housed on pressure regulation screw plug 7, through hole 15 is equipped with in pressure regulation screw plug 7 centers, rear joint 10 is equipped with on pressure regulation screw plug 7 right sides, through hole 15 is equipped with in rear joint 10 centers, left side, quick socket 17 is equipped with on right side, rear joint 10 is equipped with O shape circle 9 with valve body 5 junctions, fairlead 2 is equipped with in described spring base 4 left sides, spool 3 is housed in fairlead 2, outage 16 is housed on spool 3, protective cover 14 is equipped with in fairlead 2 outsides, joint 1 is equipped with in fairlead 2 left sides, joint 1 Inner Front End is equipped with strainer 12, strainer 12 is equipped with check ring 11 with joint 1 junction, joint 1 is equipped with back-up ring 13 with protective cover 14 junctions.A kind of safety valve of taking back the liquid function for hydraulic support of this utility model, during use when the column internal pressure surpasses the minimum setting pressure of relief valve value, spool 3 overcomes the motion of turning right of spring 6 resistances, liquid is by the outage 16 on spool 3, flow in the through hole 15 of spring base 4, then, by the through hole of valve body 5 inside and look nut 7, arrive rear joint 10 places, by the through hole 15 in rear joint 10, flow into rear joint 10 right sides and flexible pipe that quick socket 17 connects in.
Claims (1)
1. one kind is used for hydraulic support and takes back the safety valve of liquid function, comprise valve body (5), spool (3), joint (1) and protective cover (14), it is characterized in that: spring (6) is housed in valve body (5), spring (6) one ends are equipped with spring base (4), through hole (15) is equipped with in spring base (4) center, the other end of spring (6) is equipped with pressure regulation screw plug (7), trip bolt (8) is housed on pressure regulation screw plug (7), through hole (15) is equipped with in pressure regulation screw plug (7) center, rear joint (10) is equipped with on pressure regulation screw plug (7) right side, through hole (15) is equipped with in center, rear joint (10) left side, quick socket (17) is equipped with on right side, rear joint (10) is equipped with O shape circle (9) with valve body (5) junction, fairlead (2) is equipped with in described spring base (4) left side, spool (3) is housed in fairlead (2), outage (16) is housed on spool (3), protective cover (14) is equipped with in fairlead (2) outside, joint (1) is equipped with in fairlead (2) left side, joint (1) Inner Front End is equipped with strainer (12), strainer (12) is equipped with check ring (11) with joint (1) junction, joint (1) is equipped with back-up ring (13) with protective cover (14) junction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203161453U CN203296795U (en) | 2013-06-04 | 2013-06-04 | Safety valve with liquid returning function for hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203161453U CN203296795U (en) | 2013-06-04 | 2013-06-04 | Safety valve with liquid returning function for hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203296795U true CN203296795U (en) | 2013-11-20 |
Family
ID=49572812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203161453U Expired - Fee Related CN203296795U (en) | 2013-06-04 | 2013-06-04 | Safety valve with liquid returning function for hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203296795U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542716A (en) * | 2016-06-23 | 2018-01-05 | 镇江液压股份有限公司 | A kind of pressure-gradient control valve with safety valve |
-
2013
- 2013-06-04 CN CN2013203161453U patent/CN203296795U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542716A (en) * | 2016-06-23 | 2018-01-05 | 镇江液压股份有限公司 | A kind of pressure-gradient control valve with safety valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20160604 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |