CN212657299U - 一种双片防火止回阀 - Google Patents
一种双片防火止回阀 Download PDFInfo
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- CN212657299U CN212657299U CN202021336892.XU CN202021336892U CN212657299U CN 212657299 U CN212657299 U CN 212657299U CN 202021336892 U CN202021336892 U CN 202021336892U CN 212657299 U CN212657299 U CN 212657299U
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- check valve
- main part
- air door
- main body
- biplate
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- 230000002265 prevention Effects 0.000 title abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 230000009970 fire resistant effect Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 239000011148 porous material Substances 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000741 silica gel Substances 0.000 description 4
- 229910002027 silica gel Inorganic materials 0.000 description 4
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006233 lamp black Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202021336892.XU CN212657299U (zh) | 2020-07-09 | 2020-07-09 | 一种双片防火止回阀 |
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CN202021336892.XU CN212657299U (zh) | 2020-07-09 | 2020-07-09 | 一种双片防火止回阀 |
Publications (1)
Publication Number | Publication Date |
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CN212657299U true CN212657299U (zh) | 2021-03-05 |
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CN202021336892.XU Active CN212657299U (zh) | 2020-07-09 | 2020-07-09 | 一种双片防火止回阀 |
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CN (1) | CN212657299U (zh) |
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2020
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Legal Events
Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A dual piece fireproof check valve Effective date of registration: 20230807 Granted publication date: 20210305 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Ningbo Hangzhou Bay New Area Sub branch Pledgor: NINGBO CILI CONSTANT TEMPERATURE TECHNOLOGY CO.,LTD. Registration number: Y2023980051107 |
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PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20210305 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Ningbo Hangzhou Bay New Area Sub branch Pledgor: NINGBO CILI CONSTANT TEMPERATURE TECHNOLOGY CO.,LTD. Registration number: Y2023980051107 |
|
PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A dual piece fireproof check valve Granted publication date: 20210305 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Ningbo Hangzhou Bay New Area Sub branch Pledgor: NINGBO CILI CONSTANT TEMPERATURE TECHNOLOGY CO.,LTD. Registration number: Y2024980038007 |
|
PE01 | Entry into force of the registration of the contract for pledge of patent right |