CN214699800U - 一种风道管道预埋件 - Google Patents
一种风道管道预埋件 Download PDFInfo
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- CN214699800U CN214699800U CN202120657963.4U CN202120657963U CN214699800U CN 214699800 U CN214699800 U CN 214699800U CN 202120657963 U CN202120657963 U CN 202120657963U CN 214699800 U CN214699800 U CN 214699800U
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- pvc
- pvc pipe
- waterproof
- air
- barrier layer
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- 229920002635 polyurethane Polymers 0.000 claims abstract description 12
- 239000004814 polyurethane Substances 0.000 claims abstract description 12
- 230000004888 barrier function Effects 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 4
- 238000009413 insulation Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 5
- 238000004321 preservation Methods 0.000 description 3
- 239000012774 insulation material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120657963.4U CN214699800U (zh) | 2021-03-31 | 2021-03-31 | 一种风道管道预埋件 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120657963.4U CN214699800U (zh) | 2021-03-31 | 2021-03-31 | 一种风道管道预埋件 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214699800U true CN214699800U (zh) | 2021-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120657963.4U Expired - Fee Related CN214699800U (zh) | 2021-03-31 | 2021-03-31 | 一种风道管道预埋件 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214699800U (zh) |
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2021
- 2021-03-31 CN CN202120657963.4U patent/CN214699800U/zh not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Lu Yingjun Inventor after: Yu Zhibiao Inventor before: Yu Zhibiao |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230816 Address after: No. 258 Maolitang, Hengdian Community, Hengdian Town, Dongyang City, Jinhua, Zhejiang Province 322118 Patentee after: Lu Yingjun Address before: 071000 No. 827, Jianhua street, Lianchi District, Baoding City, Hebei Province Patentee before: Baoding Ruijia Energy Saving Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |