CN115671586B - Lifesaving window breaker structure for fire-fighting equipment engineering - Google Patents
Lifesaving window breaker structure for fire-fighting equipment engineering Download PDFInfo
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- CN115671586B CN115671586B CN202211419016.7A CN202211419016A CN115671586B CN 115671586 B CN115671586 B CN 115671586B CN 202211419016 A CN202211419016 A CN 202211419016A CN 115671586 B CN115671586 B CN 115671586B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention discloses a lifesaving window breaker structure for fire-fighting equipment engineering, which comprises an operating rod and a shell, wherein the shell is fixed at the bottom end of the operating rod, a storage battery is embedded and fixed in the operating rod, a cutting mechanism which is convenient for cutting a safety belt is arranged on one side of the operating rod, a blocking mechanism for preventing glass from splashing is arranged on the outer side of the shell, a hollow rod is fixed at the bottom end of the shell, a movable block is movably clamped in the shell, a crushing rod is fixed at the bottom end of the movable block, the crushing rod movably extends into the hollow rod, and a first spring is fixed between the top end of the movable block and the top end of the shell. When the window is broken, the protection rod and the second gear are rotated to be in a horizontal state, the protection rod is lengthened, the micro motor is started, the first gear is driven to rotate through the rotating shaft, the second gear is driven to rotate in such a way, the protection rod is driven to rotate in a following way when the second gear rotates, the protection rod is used for protecting, and fragments generated when the window is broken are retracted by the rotating protection rod, so that the splashed fragments are prevented from damaging the hands of operators.
Description
Technical Field
The invention relates to the technical field of window breaker equipment, in particular to a lifesaving window breaker structure for fire protection facility engineering.
Background
The window breaker is an auxiliary escape tool arranged in the closed cabin. It is generally installed in a closed cabin of an automobile or the like in a place which is easily accessible. When the fire disaster occurs in the closed cabins of automobiles and the like or the emergency situation such as water falls into the closed cabins, the glass window and door can be conveniently taken out and smashed to escape smoothly.
The toughened glass is also used in the existing part of buildings, when the buildings are on fire, the window breaking device is used for breaking the window, and escape is carried out through the broken window; in the case of fire escape, people are required to weave ropes through cloth such as curtains to assist escape at some time, and the cloth is inconvenient to split integrally, so that escape efficiency of the people is reduced, and a device is needed to solve the problems.
Disclosure of Invention
The invention aims to provide a lifesaving window breaker structure for fire-fighting equipment engineering, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a lifesaving broken window ware structure for fire control facility engineering, includes action bars and casing, the casing is fixed in the action bars bottom, the fixed battery that is provided with of inlaying in the action bars, action bars one side is provided with the cutting mechanism who conveniently cuts the safety belt, the casing outside is provided with the blocking mechanism that prevents glass and splash, casing bottom mounting is provided with hollow bar, the inside movable joint of casing is provided with the movable block, movable block bottom mounting is provided with broken pole, broken pole activity extends to hollow bar inside, fixed being provided with first spring between movable block top and the inside top of casing, spacing hole has been seted up to movable block one side, casing one side is fixed and is provided with first fixed block, the spout has been seted up to first fixed block one side, the inside slip of spout is provided with the slider, slider one side is fixed and is provided with the operation block, an extending plate is fixedly arranged on one side of the first fixed block, a through hole is formed in the extending plate, an extending cylinder is fixedly arranged on one side of the extending plate, a limiting rod is movably inserted in the extending cylinder, a second spring is fixedly arranged between the limiting rod and the extending plate, a steel wire rope is fixedly arranged on one side of the limiting rod, the other side of the steel wire rope movably penetrates through the through hole and is then fixed on the operating block, before the operating block is used, the crushing rod is recycled in the hollow rod, the moving block extrudes the first spring at the moment, the first spring is in a compressed state, the limiting rod is clamped in the limiting hole to fix the position of the moving block, when the window is broken, the operating block moves the operating block along a sliding groove through a sliding block, the limiting rod moves along the extending cylinder, and extrudes the second spring, until the limiting rod is separated from the inside of the limiting hole, the elastic force of the first spring is released instantaneously to drive the crushing rod to pop up for crushing, the crushing rod is pressed by a thin rod or other auxiliary rod tools to be recycled into the hollow rod after the crushing rod is completed, then the operation block is loosened, the second spring drives the limiting rod to be in reset and clamped in the limiting hole, so that the crushing rod is convenient to reset and reuse, the blocking mechanism comprises a second fixing block, a micro motor, a rotating shaft, a first gear, a second gear, a limiting ring, a third fixing block, a U-shaped groove and a protective rod, the second fixing block is fixed on the outer side of the shell, the micro motor is fixed at the bottom end of the second fixing block, the rotating shaft is fixed at the output end position of the micro motor, the first gear is fixed at the bottom end of the rotating shaft, the limiting ring is fixed outside the shell in a surrounding mode, the second gear is movably sleeved on the outer side of the shell, the third fixing block is fixed at the bottom end of the second gear, the U-shaped groove is formed in one side of the third fixing block, the protection rod is movably arranged inside the U-shaped groove, the protection rod is a telescopic rod, when a window is broken, the protection rod and the second gear are rotated to be in a horizontal state, then the protection rod is lengthened, the micro motor is started, the first gear is driven to rotate through the rotating shaft, the second gear is driven to rotate in a rotating mode, the protection rod is driven to rotate in a following mode when the second gear rotates, protection is conducted through the rotating protection rod, and fragments generated when the window is broken are knocked back by the rotating protection rod, so that splashed fragments are prevented from damaging hands of operators.
Preferably, the cutting mechanism comprises a groove body, a fixed shaft, a blade and a protruding block, wherein the groove body is arranged on the outer side of an operating rod, the fixed shaft is fixed inside the groove body, the blade is movably sleeved on the outer side of the fixed shaft in a damping mode, the protruding block is fixed on one side of the back of the blade, when a rope is manufactured by using bed clothes, the blade is rotated to the outer side of the groove body through the protruding block, so that the blade can be used for cutting bed sheets, curtains or clothes, the rapid manufacturing of the rope is facilitated, the escape speed of personnel is improved, the blade is rotated after the use is completed, the blade is accommodated inside the groove body, the blade is fixed in the groove body through a damping force, and the accommodating work of the blade is facilitated.
Preferably, the storage battery is a lithium battery, and anti-skid patterns are arranged on the outer side of the operation block.
Preferably, the limit rod and the limit Kong Qige.
Preferably, the crushing rod is matched with the hollow rod, and the cross section of the hollow rod is rectangular.
Preferably, the micro motor is electrically connected with the storage battery.
Preferably, two limiting rings are arranged, and the second gear is positioned between the two limiting rings.
Preferably, the first gear is meshed with the second gear.
Compared with the prior art, the invention has the beneficial effects that:
1. before the invention is used, the crushing rod is recycled in the hollow rod, the movable block extrudes the first spring at the moment to enable the first spring to be in a compressed state, the limiting rod is clamped in the limiting hole to fix the position of the movable block, the operating block is moved along the sliding groove through the sliding block at the moment when the window is broken, the operating block pulls the steel wire rope to enable the limiting rod to move along the inside of the extension cylinder, and extrudes the second spring until the limiting rod is separated from the inside of the limiting hole, the elastic force of the first spring is released instantly to drive the crushing rod to eject for crushing, after the crushing rod is pressed by a thin rod or other auxiliary rod tools to be recycled in the hollow rod, then the operating block is loosened, and the second spring drives the limiting rod to be in reset and clamped in the limiting hole, so that the crushing rod is convenient to reset for reuse;
2. when the rope is manufactured by using the bed sheet clothes, the blades are rotated to the outer side of the groove body through the protruding blocks, so that the bed sheet, the curtain or the clothes can be cut through the blades, the rope can be conveniently and quickly manufactured, the escape speed of a person is improved, the blades are rotated after the rope is used, the blades are contained in the groove body, the blades are fixed at the inner part of the groove body through damping force, and the containing work of the blades is facilitated;
3, when the window is broken, the protection rod and the second gear are rotated to be in a horizontal state, the protection rod is lengthened, then the micro motor is started, the first gear is driven to rotate through the rotating shaft, the second gear is driven to rotate in such a way, the protection rod is driven to rotate in a following way when the second gear rotates, the protection is carried out through the rotating protection rod, fragments generated when the window is broken are retracted by the rotating protection rod, and the splashed fragments are prevented from damaging the hands of operators.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view of a tank of the present invention;
FIG. 3 is a cross-sectional view of a first securing block according to the present invention;
fig. 4 is an enlarged schematic view of the present invention a.
In the figure: 1. an operation lever; 2. a housing; 3. a storage battery; 4. a hollow rod; 5. a movable block; 6. a breaker bar; 7. a first spring; 8. a first fixed block; 9. a chute; 10. a slide block; 11. an operation block; 12. an extension plate; 13. perforating; 14. an extension cylinder; 15. a limit rod; 16. a wire rope; 17. a second spring; 18. a tank body; 19. a fixed shaft; 20. a blade; 21. a protruding block; 22. a second fixed block; 23. a micro motor; 24. a rotating shaft; 25. a first gear; 26. a limiting ring; 27. a second gear; 28. a third fixed block; 29. a protective rod; 30. a U-shaped groove; 31. and a limiting hole.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a lifesaving broken window ware structure for fire control facility engineering, including action bars 1 and casing 2, casing 2 welded fastening is in action bars 1 bottom, the inside mosaic of action bars 1 is fixed with battery 3, battery 3 is the lithium cell, there is the cutting mechanism who conveniently cuts the safety belt on one side of action bars 1, the casing 2 outside has the blocking mechanism that prevents glass and splashes, casing 2 bottom welded fastening has hollow pole 4, hollow pole 4 cross section is the rectangle, the inside movable joint of casing 2 has movable block 5, movable block 5 bottom welded fastening has broken pole 6, broken pole 6 activity extends to hollow pole 4 inside, broken pole 6 agrees with hollow pole 4, welded fastening has first spring 7 between movable block 5 top and the inside top of casing 2, spacing hole 31 has been seted up to movable block 5 one side, first fixed block 8 is welded fastening to casing 2 one side, spout 9 has been seted up to first fixed block 8 one side, the sliding chute 9 is internally provided with a sliding block 10 in a sliding way, one side of the sliding block 10 is fixedly welded with an operating block 11, the outer side of the operating block 11 is provided with anti-skid patterns, one side of the first fixed block 8 is fixedly welded with an extending plate 12, the extending plate 12 is provided with a perforation 13, one side of the extending plate 12 is fixedly welded with an extending cylinder 14, a limiting rod 15 is movably inserted into the extending cylinder 14, the limiting rod 15 is matched with a limiting hole 31, a second spring 17 is fixedly welded between the limiting rod 15 and the extending plate 12, one side of the limiting rod 15 is fixedly welded with a steel wire rope 16, the other side of the steel wire rope 16 movably penetrates through the perforation 13 and is fixedly welded on the operating block 11, before the sliding chute is used, the crushing rod 6 is recycled in the hollow rod 4, the movable block 5 extrudes the first spring 7 at the moment, the first spring 7 is in a compressed state, the limiting rod 15 is clamped in the limiting hole 31 to fix the position of the movable block 5, when broken window, at this moment, remove operation piece 11 along spout 9 through slider 10, operation piece 11 pulling wire rope 16 for gag lever post 15 moves along inside extension section of thick bamboo 14, and extrude second spring 17, until gag lever post 15 breaks away from spacing hole 31 inside, first spring 7 elasticity release in the twinkling of an eye this, drive broken pole 6 and pop out and break, press broken pole 6 through thin pole or other auxiliary rod instrument after accomplishing and retrieve to hollow pole 4 inside, then loosen operation piece 11, second spring 17 drives gag lever post 15 reset joint inside spacing hole 31, so make things convenient for the reset of broken pole 6 to use again.
The cutting mechanism comprises a groove body 18, a fixed shaft 19, a blade 20 and a protruding block 21, wherein the groove body 18 is arranged on the outer side of an operating rod 1, the fixed shaft 19 is fixedly welded in the groove body 18, the blade 20 is movably sleeved on the outer side of the fixed shaft 19 in a damping mode, the protruding block 21 is fixedly welded on one side of the back of the blade 20 in a welding mode, when a rope is manufactured by using bed clothes, the blade 20 is rotated to the outer side of the groove body 18 through the protruding block 21, the bed clothes, curtains or clothes can be cut through the blade 20, rapid manufacturing of the rope is facilitated, the escape speed of personnel is improved, the blade 20 is rotated after the use is completed, the blade 20 is accommodated in the groove body 18, the blade 20 is fixed at the inner position of the groove body 18 through damping force, and the accommodation work of the blade 20 is facilitated.
The blocking mechanism comprises a second fixed block 22, a micro motor 23, a rotating shaft 24, a first gear 25, a second gear 27, limiting rings 26, a third fixed block 28, a U-shaped groove 30 and a protective rod 29, wherein the second fixed block 22 is welded and fixed on the outer side of the shell 2, the micro motor 23 is fixed at the bottom end of the second fixed block 22 through bolts, the rotating shaft 24 is fixed at the output end position of the micro motor 23 through a coupler, the micro motor 23 is electrically connected with a storage battery 3, the first gear 25 is welded and fixed at the bottom end of the rotating shaft 24, the limiting rings 26 are welded and fixed on the outer side of the shell 2 in a surrounding manner, two limiting rings 26 are arranged, the second gear 27 is movably sleeved on the outer side of the shell 2, the second gear 27 is positioned between the two limiting rings 26, the first gear 25 is meshed with the second gear 27, the third fixed block 28 is welded and fixed at the bottom end of the second gear 27, the U-shaped groove 30 is formed in one side of the third fixed block 28, the protection rod 29 is movably arranged in the U-shaped groove 30 through a pin shaft, the protection rod 29 is a telescopic rod, the protection rod 29 and the second gear 27 are rotated to be in a horizontal state when a window is broken, then the protection rod 29 is lengthened, the micro motor 23 is started, the first gear 25 is driven to rotate through the rotating shaft 24, the second gear 27 is driven to rotate in such a way, the protection rod 29 is driven to rotate when the second gear 27 rotates, so that the protection rod 29 is protected through the rotation, and fragments generated when the window is broken are knocked back by the rotation of the protection rod 29, so that the splashed fragments are prevented from damaging the hands of operators.
Working principle: before use, the crushing rod 6 at the moment is recovered in the hollow rod 4, the movable block 5 at the moment extrudes the first spring 7, so that the first spring 7 is in a compressed state, the limiting rod 15 is clamped in the limiting hole 31 to fix the position of the movable block 5, during window breaking, the sliding block 10 moves the operating block 11 along the sliding groove 9, the operating block 11 pulls the steel wire rope 16, so that the limiting rod 15 moves along the inside of the extension cylinder 14 and extrudes the second spring 17 until the limiting rod 15 is separated from the inside of the limiting hole 31, at the moment, the elastic force of the first spring 7 is instantaneously released to drive the crushing rod 6 to eject and crush, after the crushing rod 6 is pressed by a thin rod or other auxiliary rod tool, the crushing rod 6 is recovered in the hollow rod 4, then the operating block 11 is loosened, and the second spring 17 drives the limiting rod 15 to be clamped in the limiting hole 31 in a reset manner, so that the reset of the crushing rod 6 is convenient to use again; when the rope is manufactured by using the bed sheet clothes, the blade 20 is rotated to the outer side of the groove body 18 through the protruding block 21, so that the bed sheet, the curtain or the clothes can be cut through the blade 20, the rope can be conveniently and quickly manufactured, the escape speed of a person is improved, the blade 20 is rotated after the rope is used, the blade 20 is contained in the groove body 18, the blade 20 is fixed at the position inside the groove body 18 through damping force, and the containing work of the blade 20 is facilitated; when broken window, rotate the guard bar 29 and become the horizontality with second gear 27, then lengthen guard bar 29, later start micro motor 23, drive first gear 25 through pivot 24 and rotate, so drive second gear 27 and rotate, drive guard bar 29 and follow the rotation when second gear 27 rotates, protect through pivoted guard bar 29 like this, the piece that produces when broken window is knocked back by pivoted guard bar 29, prevent the piece damage operating personnel's that splashes hand.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a fire control facility engineering is with broken window ware structure of lifesaving, includes action bars (1) and casing (2), its characterized in that: the utility model discloses a high-speed glass cutting machine, including casing (2), action bars (1), casing (2), movable block (10), movable block (5) bottom mounting is provided with broken pole (6), broken pole (6) activity extends to inside hollow bar (4), fixed first spring (7) that are provided with between movable block (5) top and casing (2) inside top, limiting hole (31) are seted up to movable block (5) one side, casing (2) one side is fixed to be provided with first fixed block (8), first fixed block (8) one side is seted up spout (9), inside slip of spout (9) is provided with slider (10), slider (10) one side is fixed to be provided with action bars (11), first fixed block (12) are provided with perforation (12) one side, extension cylinder (12) are set up to one side, extension cylinder (12) are extended and are extended to one side fixed, the utility model is characterized in that a limiting rod (15) is movably inserted in the extension cylinder (14), a second spring (17) is fixedly arranged between the limiting rod (15) and the extension plate (12), a steel wire rope (16) is fixedly arranged on one side of the limiting rod (15), the other side of the steel wire rope (16) movably passes through a perforation (13) and is then fixed on an operation block (11), the blocking mechanism comprises a second fixed block (22), a micro motor (23), a rotating shaft (24), a first gear (25), a second gear (27), a limiting ring (26), a third fixed block (28), a U-shaped groove (30) and a protection rod (29), the second fixed block (22) is fixed on the outer side of the shell (2), the micro motor (23) is fixed at the bottom end of the second fixed block (22), the rotating shaft (24) is fixed at the output end position of the micro motor (23), the first gear (25) is fixed at the bottom end of the rotating shaft (24), the limiting ring (26) is fixed on the outer side of the shell (2) in a surrounding mode, the second gear (27) is fixed on the outer side of the third fixed block (28) and is fixed on the third side of the third fixed block (28) in a sleeved mode, the protection rod (29) is movably arranged in the U-shaped groove (30), and the protection rod (29) is a telescopic rod.
2. The lifesaving window breaker structure for fire protection equipment engineering according to claim 1, wherein: the cutting mechanism comprises a groove body (18), a fixed shaft (19), a blade (20) and a protruding block (21), wherein the groove body (18) is arranged on the outer side of the operating rod (1), the fixed shaft (19) is fixed inside the groove body (18), the blade (20) is movably sleeved on the outer side of the fixed shaft (19) in a damping mode, and the protruding block (21) is fixed on one side of the back of the blade (20).
3. The lifesaving window breaker structure for fire protection equipment engineering according to claim 2, wherein: the storage battery (3) is a lithium battery, and anti-skid patterns are arranged on the outer side of the operation block (11).
4. A fire protection equipment engineering lifesaving window breaker structure according to claim 3, characterized in that: the limiting rod (15) is matched with the limiting hole (31).
5. The lifesaving window breaker structure for fire engineering according to claim 4, wherein: the crushing rod (6) is matched with the hollow rod (4), and the cross section of the hollow rod (4) is rectangular.
6. The lifesaving window breaker structure for fire engineering according to claim 5, wherein: the micro motor (23) is electrically connected with the storage battery (3).
7. The lifesaving window breaker structure for fire engineering according to claim 6, wherein: the limiting rings (26) are arranged in two, and the second gear (27) is positioned between the two limiting rings (26).
8. The lifesaving window breaker structure for fire engineering according to claim 7, wherein: the first gear (25) is meshed with the second gear (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211419016.7A CN115671586B (en) | 2022-11-14 | 2022-11-14 | Lifesaving window breaker structure for fire-fighting equipment engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211419016.7A CN115671586B (en) | 2022-11-14 | 2022-11-14 | Lifesaving window breaker structure for fire-fighting equipment engineering |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115671586A CN115671586A (en) | 2023-02-03 |
| CN115671586B true CN115671586B (en) | 2023-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211419016.7A Active CN115671586B (en) | 2022-11-14 | 2022-11-14 | Lifesaving window breaker structure for fire-fighting equipment engineering |
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| Country | Link |
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| CN (1) | CN115671586B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US6766933B1 (en) * | 2003-08-06 | 2004-07-27 | Tien-Shui Wang | Automobile escape hammer gun |
| CN206315373U (en) * | 2016-11-16 | 2017-07-11 | 哲弗智能系统（上海）有限公司 | A kind of hand-held window breaker with plastic cutter |
| CN206604028U (en) * | 2017-03-16 | 2017-11-03 | 周宏飞 | A kind of door and window emergency opening device |
| CN206938698U (en) * | 2017-07-07 | 2018-01-30 | 南京天则汽车科技有限公司 | A kind of light bus escape window window breaking device |
| CN109865214A (en) * | 2017-12-05 | 2019-06-11 | 西安兴仪科技股份有限公司 | A kind of run-resistant multipurpose fireman's axe of the act of rescue |
| CN210704128U (en) * | 2019-05-10 | 2020-06-09 | 中国安全生产科学研究院 | Dustproof auxiliary device of angle mill |
| CN216222658U (en) * | 2021-11-01 | 2022-04-08 | 中交安科技实业（湖北）有限公司 | Automatic window breaker with protection device |
-
2022
- 2022-11-14 CN CN202211419016.7A patent/CN115671586B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6766933B1 (en) * | 2003-08-06 | 2004-07-27 | Tien-Shui Wang | Automobile escape hammer gun |
| CN206315373U (en) * | 2016-11-16 | 2017-07-11 | 哲弗智能系统（上海）有限公司 | A kind of hand-held window breaker with plastic cutter |
| CN206604028U (en) * | 2017-03-16 | 2017-11-03 | 周宏飞 | A kind of door and window emergency opening device |
| CN206938698U (en) * | 2017-07-07 | 2018-01-30 | 南京天则汽车科技有限公司 | A kind of light bus escape window window breaking device |
| CN109865214A (en) * | 2017-12-05 | 2019-06-11 | 西安兴仪科技股份有限公司 | A kind of run-resistant multipurpose fireman's axe of the act of rescue |
| CN210704128U (en) * | 2019-05-10 | 2020-06-09 | 中国安全生产科学研究院 | Dustproof auxiliary device of angle mill |
| CN216222658U (en) * | 2021-11-01 | 2022-04-08 | 中交安科技实业（湖北）有限公司 | Automatic window breaker with protection device |
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|---|---|
| CN115671586A (en) | 2023-02-03 |
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Effective date of registration: 20230720 Address after: 311200 room 1001, building 1, Guofeng building, ningwei street, Xiaoshan District, Hangzhou City, Zhejiang Province Applicant after: Zhejiang Dingzhen Fire Technology Co.,Ltd. Address before: 311200 Room 518, building 2, Xiaoran building, No. 65, Chengxiang street, Xiaoshan District, Hangzhou, Zhejiang Province Applicant before: Hangzhou Zhongan Safety Technology Consulting Co.,Ltd. |
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