CN203867595U - Safety valve for mine - Google Patents
Safety valve for mine Download PDFInfo
- Publication number
- CN203867595U CN203867595U CN201420244103.8U CN201420244103U CN203867595U CN 203867595 U CN203867595 U CN 203867595U CN 201420244103 U CN201420244103 U CN 201420244103U CN 203867595 U CN203867595 U CN 203867595U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- joint
- spring
- connector
- 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 - Lifetime
Links
- 230000007062 hydrolysis Effects 0.000 claims abstract description 4
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 4
- 229920002635 polyurethane Polymers 0.000 claims abstract description 4
- 239000004814 polyurethane Substances 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract 3
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Lift Valve (AREA)
Abstract
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420244103.8U CN203867595U (en) | 2014-05-14 | 2014-05-14 | Safety valve for mine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420244103.8U CN203867595U (en) | 2014-05-14 | 2014-05-14 | Safety valve for mine |
Publications (1)
Publication Number | Publication Date |
---|---|
CN203867595U true CN203867595U (en) | 2014-10-08 |
Family
ID=51648565
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201420244103.8U Expired - Lifetime CN203867595U (en) | 2014-05-14 | 2014-05-14 | Safety valve for mine |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN203867595U (en) |
-
2014
- 2014-05-14 CN CN201420244103.8U patent/CN203867595U/en not_active Expired - Lifetime
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN CEMCN CO., LTD. Free format text: FORMER NAME: SHENZHEN CEMCN LTD. |
|
CP01 | Change in the name or title of a patent holder |
Address after: 518115, Guangdong Province, Longgang District, Henggang Shenzhen Street Ping Road No. 138, 101 Patentee after: CEMCN CO.,LTD. Address before: 518115, Guangdong Province, Longgang District, Henggang Shenzhen Street Ping Road No. 138, 101 Patentee before: Shenzhen CEMCN Ltd. |
|
C56 | Change in the name or address of the patentee | ||
CP02 | Change in the address of a patent holder |
Address after: 518115 Guangdong province Shenzhen City Pingshan Kengzi streets rongshou Ludongdeta high-tech factory 1 building two layer Patentee after: CEMCN CO.,LTD. Address before: 518115, Guangdong Province, Longgang District, Henggang Shenzhen Street Ping Road No. 138, 101 Patentee before: CEMCN CO.,LTD. |
|
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20141008 |