CN201173127Y - Large flow safety valve for hydraulic support hydraulic-oil cylinder - Google Patents
Large flow safety valve for hydraulic support hydraulic-oil cylinder Download PDFInfo
- Publication number
- CN201173127Y CN201173127Y CNU2008200698916U CN200820069891U CN201173127Y CN 201173127 Y CN201173127 Y CN 201173127Y CN U2008200698916 U CNU2008200698916 U CN U2008200698916U CN 200820069891 U CN200820069891 U CN 200820069891U CN 201173127 Y CN201173127 Y CN 201173127Y
- Authority
- CN
- China
- Prior art keywords
- valve
- safety valve
- spool
- blind hole
- flow safety
- 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
Images
Landscapes
- Safety Valves (AREA)
Abstract
Description
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2008200698916U CN201173127Y (en) | 2008-04-03 | 2008-04-03 | Large flow safety valve for hydraulic support hydraulic-oil cylinder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2008200698916U CN201173127Y (en) | 2008-04-03 | 2008-04-03 | Large flow safety valve for hydraulic support hydraulic-oil cylinder |
Publications (1)
Publication Number | Publication Date |
---|---|
CN201173127Y true CN201173127Y (en) | 2008-12-31 |
Family
ID=40200243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNU2008200698916U Expired - Fee Related CN201173127Y (en) | 2008-04-03 | 2008-04-03 | Large flow safety valve for hydraulic support hydraulic-oil cylinder |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN201173127Y (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102758643A (en) * | 2012-06-21 | 2012-10-31 | 乐清市东风煤矿设备有限公司 | Safety valve |
CN103835734A (en) * | 2014-04-02 | 2014-06-04 | 安徽理工大学 | Individual hydraulic prop large-flow water pressure three-purpose valve |
CN104153794A (en) * | 2014-08-06 | 2014-11-19 | 巨隆集团芜湖兴隆液压有限公司 | Valve element assembly of high-flow safety valve |
CN105569696A (en) * | 2016-03-04 | 2016-05-11 | 辽宁工程技术大学 | Extra-large flow high-pressure erosion-control pressure control valve for hydraulic support |
-
2008
- 2008-04-03 CN CNU2008200698916U patent/CN201173127Y/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102758643A (en) * | 2012-06-21 | 2012-10-31 | 乐清市东风煤矿设备有限公司 | Safety valve |
CN103835734A (en) * | 2014-04-02 | 2014-06-04 | 安徽理工大学 | Individual hydraulic prop large-flow water pressure three-purpose valve |
CN103835734B (en) * | 2014-04-02 | 2016-05-11 | 安徽理工大学 | The large flow hydraulic pressure of hydraulic prop triple-use valve |
CN104153794A (en) * | 2014-08-06 | 2014-11-19 | 巨隆集团芜湖兴隆液压有限公司 | Valve element assembly of high-flow safety valve |
CN104153794B (en) * | 2014-08-06 | 2016-02-17 | 巨隆集团芜湖兴隆液压有限公司 | A kind of core assembly of high-flow safety valve |
CN105569696A (en) * | 2016-03-04 | 2016-05-11 | 辽宁工程技术大学 | Extra-large flow high-pressure erosion-control pressure control valve for hydraulic support |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102080651B (en) | Long-acting no-leakage plunger sealing structure for plunger type measuring pump | |
CN201173127Y (en) | Large flow safety valve for hydraulic support hydraulic-oil cylinder | |
CN205173525U (en) | Submarine pipeline pair gate valve | |
CN203115110U (en) | Combined sealing structure of actuator piston rod | |
CN201801346U (en) | Novel hydraulic jack | |
CN201802419U (en) | Safety valve with pressure balancing cavity | |
CN203272818U (en) | Balanced cage type single-seat adjusting valve | |
CN202832603U (en) | Novel medium-flux hydraulic control one-way valve | |
CN201092838Y (en) | Cuneiform contractile ring well mouth sealing device | |
CN203347817U (en) | Middle flow balance reversible lock | |
CN202832576U (en) | Three-use valve for mining individual hydraulic prop | |
CN208041180U (en) | A kind of antiwear SPE valve base sealing structures | |
CN202031613U (en) | Large-flow safety valve used for hydraulic oil cylinder of hydraulic support | |
CN203115111U (en) | Safe stop valve | |
CN201496604U (en) | Composite sealing ball valve | |
CN204099638U (en) | A kind of valve seat construction of hard seal floating ball valve | |
CN206268498U (en) | A kind of valve seat construction of bidirectional metal hard-sealing floating ball valve | |
CN205173553U (en) | Prevent grey ball valve | |
CN204553204U (en) | A kind of mud piston | |
CN202252315U (en) | Self-operated valve rod sealing structure | |
CN209876004U (en) | Hard sealing fixed ball valve | |
CN202520692U (en) | Hydrocylinder for support shoe of heading machine | |
CN203272308U (en) | Pedal pilot valve | |
CN203559860U (en) | Durable rubber tube of packer | |
CN203285721U (en) | Padding sealing structure of axially split pump |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: ZHENG ZHOU COALA MACHINE HYDRAULIC PRESSURE ELECTR Free format text: FORMER OWNER: ZHENGZHOU HENGDA HYDRAULIC ENGINEER CENTER Effective date: 20090515 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20090515 Address after: No. 105, Huashan Road, Henan, Zhengzhou Province, China: 450000 Patentee after: Hydraulic & Electric Control Equipment Co., Ltd., Zhengzhou Coal Mining Machinery Group Co., Ltd. Address before: No. 105, Huashan Road, Henan, Zhengzhou Province, China: 450000 Patentee before: Zhengzhou Hengda Hydraulic Engineering Center |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081231 Termination date: 20140403 |