CN205877304U - 一种防火止回阀 - Google Patents
一种防火止回阀 Download PDFInfo
- Publication number
- CN205877304U CN205877304U CN201620865958.1U CN201620865958U CN205877304U CN 205877304 U CN205877304 U CN 205877304U CN 201620865958 U CN201620865958 U CN 201620865958U CN 205877304 U CN205877304 U CN 205877304U
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- CN
- China
- Prior art keywords
- fire
- driving lever
- check valve
- rotating shaft
- preventing check
- 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.)
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- Safety Valves (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
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Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201620865958.1U CN205877304U (zh) | 2016-08-09 | 2016-08-09 | 一种防火止回阀 |
Applications Claiming Priority (1)
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CN201620865958.1U CN205877304U (zh) | 2016-08-09 | 2016-08-09 | 一种防火止回阀 |
Publications (1)
Publication Number | Publication Date |
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CN205877304U true CN205877304U (zh) | 2017-01-11 |
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CN201620865958.1U Active CN205877304U (zh) | 2016-08-09 | 2016-08-09 | 一种防火止回阀 |
Country Status (1)
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CN (1) | CN205877304U (zh) |
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2016
- 2016-08-09 CN CN201620865958.1U patent/CN205877304U/zh active Active
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Lianzhi (Beijing) Technical Service Co., Ltd Assignor: HANGZHOU XIAOMI ENVIRONMENT TECHNOLOGY Co.,Ltd. Contract record no.: X2020990000381 Denomination of utility model: Fire-proof check valve Granted publication date: 20170111 License type: Exclusive License Record date: 20200727 |
|
EE01 | Entry into force of recordation of patent licensing contract | ||
EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Lianzhi (Beijing) Technical Service Co., Ltd Assignor: HANGZHOU XIAOMI ENVIRONMENT TECHNOLOGY Co.,Ltd. Contract record no.: X2020990000381 Date of cancellation: 20201113 |
|
EC01 | Cancellation of recordation of patent licensing contract | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Lianzhi (Beijing) Technical Service Co., Ltd Assignor: HANGZHOU XIAOMI ENVIRONMENT TECHNOLOGY Co.,Ltd. Contract record no.: X2020990000595 Denomination of utility model: A fire check valve Granted publication date: 20170111 License type: Exclusive License Record date: 20201113 |
|
EE01 | Entry into force of recordation of patent licensing contract |