CN202520336U - Differential combined valve - Google Patents
Differential combined valve Download PDFInfo
- Publication number
- CN202520336U CN202520336U CN2012201642882U CN201220164288U CN202520336U CN 202520336 U CN202520336 U CN 202520336U CN 2012201642882 U CN2012201642882 U CN 2012201642882U CN 201220164288 U CN201220164288 U CN 201220164288U CN 202520336 U CN202520336 U CN 202520336U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- joint
- differential combined
- swivel nut
- 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
Links
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- Details Of Valves (AREA)
- Taps Or Cocks (AREA)
Abstract
The utility model discloses a differential combined valve, which comprises a valve body, a threaded sleeve and a joint, wherein the threaded sleeve is in threaded connection with the interior of the valve body; a large spring is arranged in the threaded sleeve; a valve element is matched with a valve seat under the pressure of the large spring to form metal loop seal; an ejector rod is arranged in the valve body, and a small spring is sleeved in the ejector rod; the joint is screwed on the valve body; and a plug and a sealing ring are arranged on the valve body. The differential combined valve is high in system integration level and reliability, long in service life and easy to mount and maintain; and the differential combined valve is repaired directly by replacing a cartridge hydraulic component, so that the differential combined valve is simple, convenient and reliable.
Description
Technical field
The utility model relates to a kind of differential pressure combination valve.
Background technology
At present, domestic column control pilot operated valve device flow is little, during off-load hydraulic shock big, all can reduce each component and the bulk life time of valve; Sealing surface adopts material sealings such as valve pad or polyformaldehyde, has tiny cinder or other foreign matters on the coal mine work area unavoidably and gets in the hydraulic valve, when the pilot operated valve device opening and closing; Have impurity and be squeezed on the compressive seal, cause leakage, string liquid, adaptive capacity and application life are all not ideal enough; Traditional in addition valve group 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 operate as normal production of underground hydraulic support frame.
The utility model content
The purpose of the utility model provides a kind of differential pressure combination valve,, application life high with the hydraulic shock of the column hydraulic control one-way valve that solves prior art and adaptive capacity is low and the problem of maintenance difficult.
In order to achieve the above object, the technical scheme that the utility model adopted is:
A kind of differential pressure combination valve includes valve body, swivel nut, joint, and said swivel nut is threaded in the valve body, is provided with big spring in the swivel nut, and spool is cooperated with valve seat by big spring pressure and forms the metal ring linear sealing; Be provided with push rod in the said valve body and be with little spring, said valve body has screwed togather joint, and said valve body is provided with screw plug and sealing ring; The said valve body joint that has been threaded, nipple tip are combined with alternately valve seat and steel ball.
The utility model level of integrated system height, good reliability, long service life are easy to installation and maintenance, directly repair this column hydraulic control one-way valve through changing the plug-in hydraulic package, and be simple and convenient reliable.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment
With reference to Fig. 1, a kind of differential pressure combination valve includes valve body 1, swivel nut 18, joint 7, and said swivel nut 18 is threaded in the valve body 1, is provided with big spring 17 in the swivel nut 18, and spool 15 is cooperated with valve seat 14 by big spring 17 pressure and forms the metal ring linear sealing; Be provided with push rod 10 in the said valve body 1 and be with little spring 11, said valve body 1 has screwed togather joint 7, and said valve body 1 is provided with screw plug 2 and sealing ring 3; Said valve body 1 joint that has been threaded, nipple tip are combined with alternately valve seat 6 and steel ball 5.
Claims (1)
1. a differential pressure combination valve includes valve body, swivel nut, joint, it is characterized in that: said swivel nut is threaded in the valve body, is provided with big spring in the swivel nut, and spool is cooperated with valve seat by big spring pressure and forms the metal ring linear sealing; Be provided with push rod in the said valve body and be with little spring, said valve body has screwed togather joint, and said valve body is provided with screw plug and sealing ring; The said valve body joint that has been threaded, nipple tip are combined with alternately valve seat and steel ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201642882U CN202520336U (en) | 2012-04-17 | 2012-04-17 | Differential combined valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201642882U CN202520336U (en) | 2012-04-17 | 2012-04-17 | Differential combined valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202520336U true CN202520336U (en) | 2012-11-07 |
Family
ID=47103289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201642882U Expired - Fee Related CN202520336U (en) | 2012-04-17 | 2012-04-17 | Differential combined valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202520336U (en) |
-
2012
- 2012-04-17 CN CN2012201642882U patent/CN202520336U/en not_active Expired - Fee Related
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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: 20121107 Termination date: 20130417 |