CN208749394U - Underground coal mine triggered barrier - Google Patents
Underground coal mine triggered barrier Download PDFInfo
- Publication number
- CN208749394U CN208749394U CN201821538074.0U CN201821538074U CN208749394U CN 208749394 U CN208749394 U CN 208749394U CN 201821538074 U CN201821538074 U CN 201821538074U CN 208749394 U CN208749394 U CN 208749394U
- Authority
- CN
- China
- Prior art keywords
- jet pipe
- cavity
- tail end
- air jet
- sliding sleeve
- 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.)
- Ceased
Links
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Description
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201821538074.0U CN208749394U (en) | 2018-09-19 | 2018-09-19 | Underground coal mine triggered barrier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201821538074.0U CN208749394U (en) | 2018-09-19 | 2018-09-19 | Underground coal mine triggered barrier |
Publications (1)
Publication Number | Publication Date |
---|---|
CN208749394U true CN208749394U (en) | 2019-04-16 |
Family
ID=66083634
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201821538074.0U Ceased CN208749394U (en) | 2018-09-19 | 2018-09-19 | Underground coal mine triggered barrier |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN208749394U (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109751074A (en) * | 2019-02-01 | 2019-05-14 | 山东德马格重工有限公司 | A kind of underground coal mine automatic bidirectional flame proof equipment and application method |
CN112121338A (en) * | 2020-09-28 | 2020-12-25 | 山东久泰消防科技有限公司 | Automatic fire-fighting device |
CN112245836A (en) * | 2020-11-09 | 2021-01-22 | 山东久泰消防科技有限公司 | Cart type fire extinguisher |
CN112709592A (en) * | 2021-01-30 | 2021-04-27 | 山东宸兴重工科技有限公司 | Mining automatic flame proof device based on external triggering |
CN112761710A (en) * | 2021-01-30 | 2021-05-07 | 山东宸兴重工科技有限公司 | Flame-retardant and explosion-proof device for coal mine |
CN112761708A (en) * | 2021-01-30 | 2021-05-07 | 山东宸兴重工科技有限公司 | Coal mine one-way receiving two-way eruption flame-retardant explosion-proof device |
-
2018
- 2018-09-19 CN CN201821538074.0U patent/CN208749394U/en not_active Ceased
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109751074A (en) * | 2019-02-01 | 2019-05-14 | 山东德马格重工有限公司 | A kind of underground coal mine automatic bidirectional flame proof equipment and application method |
CN109751074B (en) * | 2019-02-01 | 2020-02-07 | 山东德马格重工有限公司 | Automatic bidirectional explosion-proof equipment for underground coal mine and use method |
CN112121338A (en) * | 2020-09-28 | 2020-12-25 | 山东久泰消防科技有限公司 | Automatic fire-fighting device |
CN112121338B (en) * | 2020-09-28 | 2021-12-17 | 山东久泰消防科技有限公司 | Automatic fire-fighting device |
CN112245836A (en) * | 2020-11-09 | 2021-01-22 | 山东久泰消防科技有限公司 | Cart type fire extinguisher |
CN112709592A (en) * | 2021-01-30 | 2021-04-27 | 山东宸兴重工科技有限公司 | Mining automatic flame proof device based on external triggering |
CN112761710A (en) * | 2021-01-30 | 2021-05-07 | 山东宸兴重工科技有限公司 | Flame-retardant and explosion-proof device for coal mine |
CN112761708A (en) * | 2021-01-30 | 2021-05-07 | 山东宸兴重工科技有限公司 | Coal mine one-way receiving two-way eruption flame-retardant explosion-proof device |
CN112761708B (en) * | 2021-01-30 | 2022-08-12 | 山东宸兴重工科技有限公司 | Coal mine one-way receiving two-way eruption flame-retardant explosion-proof device |
CN112761710B (en) * | 2021-01-30 | 2023-02-28 | 山东宸兴重工科技有限公司 | Flame-retardant and explosion-proof device for coal mine |
CN112709592B (en) * | 2021-01-30 | 2024-05-17 | 山东宸兴重工科技有限公司 | Mining automatic explosion-proof device based on external trigger |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN208749394U (en) | Underground coal mine triggered barrier | |
CN201953397U (en) | Automatic explosion-prevention and explosion-suppression device for mine | |
CN106679500B (en) | A kind of two-stage light gas gun driven with Hydrogen Energy | |
CN107676092A (en) | A kind of liquid carbon dioxide phase transformation explosion rapid hole sealing device and method for sealing | |
CN111779530A (en) | Automatic explosion-proof device in coal mine | |
CN208702455U (en) | High-pressure gas trigger device | |
CN107503726A (en) | Orientation hydraulic pressure for improving gas permeability of coal seam concentrates demolition set | |
CN203441524U (en) | Motion triggering mechanism of automatic explosion suppression device under coal mine | |
CN209295801U (en) | Tunnel Blasting combined type charge constitution | |
CN208763689U (en) | A kind of high-pressure gas trigger device | |
CN105134260A (en) | Capacity-increase buffering anti-powerful-impact double telescopic stand columns | |
CN109751074A (en) | A kind of underground coal mine automatic bidirectional flame proof equipment and application method | |
CN208010391U (en) | A kind of New Mine flame proof automatic safe equipment | |
CN110023709A (en) | The equipment for supporting destructor | |
CN112761708B (en) | Coal mine one-way receiving two-way eruption flame-retardant explosion-proof device | |
CN214464328U (en) | Special bidirectional explosion-proof and explosion-suppression device applied to pipeline or roadway | |
CN213994659U (en) | Cart type fire extinguisher | |
CN107560504A (en) | A kind of mining blasting cartridge for increasing safety in utilization | |
CN203515442U (en) | Hole sealing device | |
CN206503587U (en) | A kind of circulating packer of coal petrography water presplitting | |
CN208816121U (en) | A kind of inner inflatable gas fracturing pipe | |
CN208763638U (en) | A kind of rock body quality of mine superdeep holes presplitting device based on crack agent | |
CN205477714U (en) | Explosion -proof system of putting of unloading of oil gas well safety | |
CN112761710B (en) | Flame-retardant and explosion-proof device for coal mine | |
CN202961578U (en) | Explosion suppressor with safety observation window |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
IP01 | Partial invalidation of patent right | ||
IP01 | Partial invalidation of patent right |
Commission number: 5W117695 Conclusion of examination: Claims 1-4 of No. 201821538074.0 are declared invalid, and the patent continues to be valid on the basis of claim 5. Decision date of declaring invalidation: 20191204 Decision number of declaring invalidation: 42518 Denomination of utility model: Mine under-shaft automatic explosive-suspension device triggered in two directions Granted publication date: 20190416 Patentee: SHANDONG JIUTAI MEIAN EQUIPMENT Co.,Ltd. |
|
IW01 | Full invalidation of patent right | ||
IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20210105 Decision number of declaring invalidation: 47485 Granted publication date: 20190416 |