CN214887186U - 一种煤矿井下风门闭锁装置 - Google Patents
一种煤矿井下风门闭锁装置 Download PDFInfo
- Publication number
- CN214887186U CN214887186U CN202121398410.8U CN202121398410U CN214887186U CN 214887186 U CN214887186 U CN 214887186U CN 202121398410 U CN202121398410 U CN 202121398410U CN 214887186 U CN214887186 U CN 214887186U
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- Prior art keywords
- air door
- wall
- mounting panel
- controller
- pipe
- 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.)
- Withdrawn - After Issue
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- 230000000903 blocking effect Effects 0.000 title claims abstract description 6
- 230000000670 limiting effect Effects 0.000 claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 14
- 238000003466 welding Methods 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 239000003245 coal Substances 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000035939 shock Effects 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 230000007659 motor function Effects 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 abstract 1
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
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Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121398410.8U CN214887186U (zh) | 2021-06-23 | 2021-06-23 | 一种煤矿井下风门闭锁装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121398410.8U CN214887186U (zh) | 2021-06-23 | 2021-06-23 | 一种煤矿井下风门闭锁装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214887186U true CN214887186U (zh) | 2021-11-26 |
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ID=78930027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121398410.8U Withdrawn - After Issue CN214887186U (zh) | 2021-06-23 | 2021-06-23 | 一种煤矿井下风门闭锁装置 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214887186U (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120486878A (zh) * | 2025-07-20 | 2025-08-15 | 长治市银海鑫诺装饰材料有限公司 | 一种智能安防门窗及使用方法 |
-
2021
- 2021-06-23 CN CN202121398410.8U patent/CN214887186U/zh not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120486878A (zh) * | 2025-07-20 | 2025-08-15 | 长治市银海鑫诺装饰材料有限公司 | 一种智能安防门窗及使用方法 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: DALAI NUR COAL INDUSTRY Co.,Ltd. Assignor: HUATING COAL INDUSTRY GROUP Co.,Ltd. Contract record no.: X2023110000158 Denomination of utility model: A locking device for underground ventilation doors in coal mines Granted publication date: 20211126 License type: Common License Record date: 20231222 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20211126 Effective date of abandoning: 20240927 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20211126 Effective date of abandoning: 20240927 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |