CN115862244A - Fire acousto-optic alarm device - Google Patents
Fire acousto-optic alarm device Download PDFInfo
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- CN115862244A CN115862244A CN202211440617.6A CN202211440617A CN115862244A CN 115862244 A CN115862244 A CN 115862244A CN 202211440617 A CN202211440617 A CN 202211440617A CN 115862244 A CN115862244 A CN 115862244A
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- 230000007246 mechanism Effects 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 238000004891 communication Methods 0.000 claims description 22
- 238000005507 spraying Methods 0.000 claims description 11
- 238000009736 wetting Methods 0.000 claims description 11
- 230000005389 magnetism Effects 0.000 claims description 7
- 239000000779 smoke Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 231100000572 poisoning Toxicity 0.000 description 2
- 230000000607 poisoning effect Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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Abstract
The invention discloses a fire sound and light alarm device, which relates to the technical field of sound and light alarm and comprises a base, wherein a fire alarm machine is arranged on the front surface of the base, an alarm opening is formed in the front surface of the fire alarm machine, an alarm lamp is fixedly connected to the front surface of the fire alarm machine, a connecting box is fixedly connected to the outer wall of the base, a tissue pushing mechanism is arranged in the connecting box, and the tissue pushing mechanism is arranged in the connecting box and enters a telescopic air pipe through the inside of the connecting box, so that a large amount of air is injected into the telescopic air pipe to instantly expand to push the telescopic air pipe to extend, a push disc is synchronously pushed to slide outwards and extends out of the connecting box, a large amount of tissues prevented in advance on the surface of the push disc are pushed out, so that tissues can cover the mouth and the nose when people escape from a sudden fire, a large amount of smoke is prevented from being sucked into the mouth and the nose after the fire burns, emergency help of the people is reminded, and the emergency help of the fire is provided for the people, and the fire has the characteristics of strong practicability.
Description
Technical Field
The invention relates to the technical field of sound and light alarm, in particular to a fire sound and light alarm device.
Background
The fire alarm device is a control indicating device which is used for receiving, displaying and transmitting fire alarm signals and can send out control signals and has other auxiliary functions in an automatic fire alarm system. The fire alarm controller is a core component in the fire alarm system, and can provide a stable working power supply for the fire detector, monitor the working states of the detector and the system, receive, convert and process the alarm signal output by the fire detector, perform sound-light alarm, indicate the specific part and time of alarm, and execute corresponding auxiliary control and other tasks. Therefore, it is necessary to design a fire sound and light alarm device with strong practicability.
Disclosure of Invention
The invention aims to provide a fire acousto-optic alarm device to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: a fire acousto-optic alarm device comprises a base, wherein a fire alarm machine is arranged on the front surface of the base, an alarm opening is formed in the front surface of the fire alarm machine, an alarm lamp is fixedly connected to the front surface of the fire alarm machine, a connecting box is fixedly connected to the outer wall of the base, and a paper towel pushing mechanism is arranged inside the connecting box;
the paper towel pushing mechanism comprises an air storage tank, a communication hole, a sliding block A, a spring A, a sliding block B, a hollow block, a magnetic block, a communication air pipe, a telescopic air pipe and a push disc, wherein the outer wall of the air storage tank is fixedly connected with the top of a connecting box;
the tissue wetting mechanism comprises a rotating block, a connecting plate and a water spraying hole, a sliding groove is formed in the connecting box, the outer wall of the rotating block is rotatably connected with the inner wall of the sliding groove, the outer wall of the rotating block is fixedly connected with the outer wall of the connecting plate, a water inlet groove is formed in the rotating block and the connecting plate, and the water spraying hole is formed in the water inlet groove.
According to the technical scheme, the tissue wetting mechanism further comprises a magnetic plate, a sliding magnetic block and a spring B, the outer wall of the magnetic plate is fixedly connected with the inner wall of the water inlet groove, the outer wall of the sliding magnetic block is slidably connected with the inner wall of the sliding groove, the outer wall of the sliding magnetic block is fixedly connected with one end of the spring B, and the other end of the spring B is fixedly connected with the top of the inner wall of the sliding groove.
According to the technical scheme, the magnetism of one side, opposite to the magnetic block, of the sliding block B is heteropolar, so that the heteropolar poles attract each other.
According to the technical scheme, the back of the inner wall of the hollow block is provided with the vent hole A, and the back of the inner wall of the connecting box is provided with the vent hole B, so that air is communicated.
According to the technical scheme, one side of the connecting box is in threaded connection with the threaded cover.
According to the technical scheme, the air storage tank is communicated with the inside of the communication hole, and the inside of the communication hole is communicated with the inside of the hollow block, so that air is communicated.
According to the technical scheme, the inside of the sliding groove is communicated with the inside of the water inlet groove, and the inside of the water inlet groove is communicated with the inside of the water spraying hole, so that air is communicated.
According to the technical scheme, the magnetism of one side of the magnetic plate, which is opposite to the sliding magnetic block, is heteropolar, so that the heteropolar poles attract each other.
Compared with the prior art, the invention has the following beneficial effects:
(1) According to the invention, by arranging the paper towel pushing mechanism, a large amount of air in the hollow block is instantly pushed to enter the connecting box through the communicating air pipe and enters the telescopic air pipe through the connecting box, so that a large amount of air is injected into the telescopic air pipe and instantly expands to push the telescopic air pipe to extend, the push disc is synchronously pushed to slide outwards and extend out of the connecting box, and a large amount of paper towels prevented in advance on the surface of the push disc are pushed out, so that people can cover the mouth and the nose by the paper towels when escaping from a sudden fire, the situation that a large amount of smoke is inhaled into the mouth and the nose to be poisoned after the fire burns is prevented, people are reminded of providing emergency help for the fire, and the probability of poisoning accidents caused by the fire is reduced.
(2) According to the invention, through the arrangement of the paper towel pushing mechanism, the pushing disc in the connecting box is sealed through the connecting plate and the rotating block, and meanwhile, only when the temperature reaches a certain degree, the spring A can push the sliding block B to move instantly, so that the sealing performance of the paper towel in the pushing disc is ensured, the sanitation and cleanness of the paper towel are ensured, and meanwhile, the telescopic air pipe is rapidly pushed to elongate along with the air, so that the pushing disc can be instantly pushed to impact the connecting plate and drive the rotating block to rotate, and therefore, the pushing disc can stretch out and impact the connecting plate, sharp sound can be instantly given out when the pushing disc stretches out and impacts the connecting plate, and therefore, surrounding people can be prompted once, so that people who escape can notice the position and find the paper towel in the position, and people can escape more safely after taking the paper towel.
(3) According to the invention, by arranging the tissue wetting mechanism, when the rotating block is driven by the connecting plate to rotate in the sliding groove, a large amount of water is injected into the sliding groove through the threaded cover on one side of the connecting box and then rotates through the rotating block, the water enters the rotating block from the water inlet groove on the surface, flows into the water inlet groove in the connecting plate through gravity, falls through the water spray holes formed in the water inlet groove in the connecting plate, and quickly wets tissues, so that the filtering effect on smoke is further improved when the mouth and the nose are covered, and the life safety is further ensured.
(4) According to the invention, by arranging the tissue wetting mechanism, after the rotating block rotates, the magnetic plate and the sliding magnetic block in the water tank inside the rotating block are subjected to magnetic attraction, the rotating block is stabilized, meanwhile, the sliding magnetic block instantly extrudes water at the bottom of the sliding magnetic block into the water tank under the action of the elastic force of the spring B, and the connecting plate is subjected to magnetic attraction stabilization through the magnetic plate and the sliding magnetic block while quick spraying is realized, so that after the connecting plate is instantly impacted and automatically lifted along with inertia, the problem that the connecting plate blocks the surface of the push plate along with the reduction of gravity to influence the escape personnel to take away the wetted tissue inside the push plate is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic overall view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic view of the structure of the paper towel pushing mechanism of the present invention;
fig. 4 is a schematic diagram of a tissue moistening mechanism according to the present invention.
In the figure: 1 fire alarm machine, 2 connecting box, 3 paper towel pushing mechanism, 301 air storage tank, 302 communication hole, 303 slide block A, 304 spring A, 305 slide block B, 306 hollow block, 307 magnetic block, 308 communication air pipe, 309 telescopic air pipe, 310 push disc, 4 paper towel wetting mechanism, 401 rotating block, 402 connecting plate, 403 water spray hole, 404 magnetic plate, 405 sliding magnetic block, 406 spring B, 5 alarm lamp, 6 alarm port and 7 base.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a fire acousto-optic alarm device comprises a base 7, wherein a fire alarm machine 1 is arranged on the front side of the base 7, an alarm opening 6 is formed in the front side of the fire alarm machine 1, an alarm lamp 5 is fixedly connected to the front side of the fire alarm machine 1, a connecting box 2 is fixedly connected to the outer wall of the base 7, and a tissue pushing mechanism 3 is arranged inside the connecting box 2;
the paper towel pushing mechanism 3 comprises an air storage tank 301, a communication hole 302, a sliding block A303, a spring A304, a sliding block B305, a hollow block 306, a magnetic block 307, a communication air pipe 308, a telescopic air pipe 309 and a push disc 310, wherein the outer wall of the air storage tank 301 is fixedly connected with the top of the connecting box 2, the communication hole 302 is formed in the top of the connecting box 2, the outer wall of the sliding block A303 is in sliding connection with the inner wall of the hollow block 306, the bottom of the sliding block A303 is fixedly connected with one end of the spring A304, the other end of the spring A304 is fixedly connected with the top of the sliding block B305, the outer wall of the sliding block B305 is in sliding connection with the inner wall of the connecting box 2, the outer wall of the magnetic block 307 is fixedly connected with the outer wall of the base 7, one end of the communication air pipe 308 is fixedly connected with the front of the air storage tank 301, the other end of the communication air pipe 308 is fixedly connected with one side of the inner wall of the connecting box 2, one end of the telescopic air pipe 309 is fixedly connected with one side of the inner wall of the connecting box 2, the other end of the telescopic air pipe 309 is fixedly connected with the outer wall of the push disc 310, the outer wall of the push disc 310 is fixedly connected with the inner wall of the connecting box 2, the outer wall of the push disc 310 is slidably connected with the inner wall of the connecting box 310, the connecting box 2, and the push disc is provided with the wet paper towel wetting mechanism 4 in the connecting box 2;
the paper towel wetting mechanism 4 comprises a rotating block 401, a connecting plate 402 and a water spraying hole 403, a sliding groove is formed in the connecting box 2, the outer wall of the rotating block 401 is connected with the inner wall of the sliding groove in a rotating mode, the outer wall of the rotating block 401 is fixedly connected with the outer wall of the connecting plate 402, a water inlet groove is formed in the rotating block 401 and the connecting plate 402, and the water spraying hole 403 is formed in the water inlet groove.
The paper towel wetting mechanism 4 further comprises a magnetic plate 404, a sliding magnetic block 405 and a spring B406, wherein the outer wall of the magnetic plate 404 is fixedly connected with the inner wall of the water inlet groove, the outer wall of the sliding magnetic block 405 is slidably connected with the inner wall of the sliding groove, the outer wall of the sliding magnetic block 405 is fixedly connected with one end of the spring B406, and the other end of the spring B406 is fixedly connected with the top of the inner wall of the sliding groove.
The magnetic property of the side of the slider B305 opposite to the magnetic block 307 is opposite.
The back of the inner wall of the hollow block 306 is provided with an air vent A, and the back of the inner wall of the connecting box 2 is provided with a threaded cover in threaded connection with one side of the connecting box 2.
The inside of the air receiver 301 communicates with the inside of the communication hole 302, and the inside of the communication hole 302 communicates with the inside of the hollow block 306.
The inside of the chute is communicated with the inside of the water inlet tank, and the inside of the water inlet tank is communicated with the inside of the water spray hole 403.
The magnetism of one side of the magnetic plate 404 opposite to the sliding magnetic block 405 is heteropolar;
when the fire disaster alarm device is used, the temperature rises sharply when a fire disaster happens, the base 7 gives out alarm flash through the alarm lamp 5 after sensing, the alarm port 6 gives out sound to remind people around the base in real time, meanwhile, air in the air storage tank 301 at the top of the connecting box 2 on the outer wall of the base 7 is heated to expand rapidly, the air enters the hollow block 306 through the communication hole 302 and pushes the sliding block A303 to descend gradually, after the sliding block A303 descends to a certain degree, when the sliding block A303 pushes the spring A304 to deform to a certain degree, the downward pushing force of the spring A304 on the sliding block B305 generated by the deformation is larger than the magnetic attraction force of the sliding block B305 and the magnetic block 307, the sliding block B305 is separated from the magnetic block 307 and is pushed to descend by the repulsive force of the spring A304 instantly, and a large amount of air in the hollow block 306 is pushed into the connecting box 2 by the communication air pipe 308 instantly, the water enters the telescopic air pipe 309 through the inside of the connecting box 2, so that a large amount of air is injected into the telescopic air pipe 309 to instantly expand to push the telescopic air pipe 309 to extend, the push disc 310 is synchronously pushed to slide outwards and stretch out of the outside of the connecting box 2, and a large amount of paper towels prevented in advance on the surface of the push disc 310 are pushed out, so that people can cover the mouth and nose when people escape in response to a sudden fire, the situation that a large amount of smoke is inhaled into the mouth and nose to be poisoned after the fire is prevented from burning is prevented, people are reminded of emergency help for the fire, the probability of poisoning accidents caused by the fire is reduced, meanwhile, the push disc 310 in the connecting box 2 is sealed through the connecting plate 402 and the rotating block 401, and only when the temperature reaches a certain degree, the spring A304 can push the sliding block B305 to instantly move, the tightness of the paper towels in the push disc 310 is ensured, and the sanitation and cleanness of the paper towels are ensured, meanwhile, the telescopic air pipe 309 is pulled to be elongated along with the rapid push of air, so that the push disc 310 can be instantly pushed to impact the connecting plate 402 and drive the rotating block 401 to rotate, the extension of the push disc 310 is realized, meanwhile, when the push disc 310 extends to impact the connecting plate 402, sharp sound can be instantly generated, and surrounding personnel can be prompted once, so that the personnel can notice the position and find the paper towel, and safer escape is carried out after taking the paper towel, when the rotating block 401 is pushed to rotate in the chute by the connecting plate 402, a large amount of water is injected into the chute through the threaded cover at one side of the connecting box 2, and after the rotating block 401 rotates, the water inlet groove at the surface enters the inside of the rotating block 401 and flows into the water inlet groove in the connecting plate 402 through gravity, and falls through the water spraying hole 403 formed in the water inlet groove in the connecting plate 402, and soak the paper handkerchief fast, then when further promoting to cover the mouth and nose, to the filter effect of flue gas, and further guaranteed life safety, simultaneously after the rotating block 401 is rotatory, the inside magnetic plate 404 that goes into the basin of rotating block 401 and sliding magnet 405 carry out magnetism and inhale, stabilize rotating block 401, sliding magnet 405 receives the quick extrusion of the water that slides the bottom of magnetic path 405 in the twinkling of an eye to get into the basin in spring B406's elasticity simultaneously, when realizing spraying fast, it is firm with the magnetism of sliding magnet 405 to carry out the magnetic attraction through magnetic plate 404 to connecting plate 402, make connecting plate 402 after being strikeed in the twinkling of an eye along with inertia automatic lifting, prevent that connecting plate 402 from blocking the push pedal 310 surface along with gravity descends, influence the problem that the personnel of fleing get the inside moist paper handkerchief of push pedal 310 takes place to take place
It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a fire reputation alarm device, includes base (7), its characterized in that: the front side of the base (7) is provided with a fire alarm machine (1), the front side of the fire alarm machine (1) is provided with an alarm opening (6), the front side of the fire alarm machine (1) is fixedly connected with an alarm lamp (5), the outer wall of the base (7) is fixedly connected with a connecting box (2), and a paper towel pushing mechanism (3) is arranged inside the connecting box (2);
the tissue pushing mechanism (3) comprises an air storage tank (301), a communication hole (302), a slider A (303), a spring A (304), a slider B (305), a hollow block (306), a magnetic block (307), a communication air pipe (308), a telescopic air pipe (309) and a push disc (310), wherein the outer wall of the air storage tank (301) is fixedly connected with the top of the connecting box (2), the communication hole (302) is arranged at the top of the connecting box (2), the outer wall of the slider A (303) is slidably connected with the inner wall of the hollow block (306), the bottom of the slider A (303) is fixedly connected with one end of the spring A (304), the other end of the spring A (304) is fixedly connected with the top of the slider B (305), the outer wall of the slider B (305) is slidably connected with the inner wall of the hollow block (306), the top of the hollow block (306) is fixedly connected with the top of the inner wall of the connecting box (2), the outer wall of the magnetic block (307) is fixedly connected with the outer wall of the base (7), one end of the communication air pipe (308) is fixedly connected with the front of the air storage tank (301), the other end of the communication air pipe (308) is fixedly connected with one side of the connecting box (309), and one side of the telescopic air pipe (309) is fixedly connected with the inner wall of the connecting box (309), the outer wall of the push disc (310) is connected with the inner wall of the connecting box (2) in a sliding mode, and a tissue wetting mechanism (4) is arranged inside the connecting box (2);
the paper towel wetting mechanism (4) comprises a rotating block (401), a connecting plate (402) and water spraying holes (403), a sliding groove is formed in the connecting box (2), the outer wall of the rotating block (401) is rotatably connected with the inner wall of the sliding groove, the outer wall of the rotating block (401) is fixedly connected with the outer wall of the connecting plate (402), a water inlet groove is formed in the rotating block (401) and the connecting plate (402), and the water spraying holes (403) are formed in the water inlet groove.
2. The sound and light alarm device for fire hazard according to claim 1, characterized in that: the paper towel wetting mechanism (4) further comprises a magnetic plate (404), a sliding magnetic block (405) and a spring B (406), wherein the outer wall of the magnetic plate (404) is fixedly connected with the inner wall of the water inlet groove, the outer wall of the sliding magnetic block (405) is slidably connected with the inner wall of the sliding groove, the outer wall of the sliding magnetic block (405) is fixedly connected with one end of the spring B (406), and the other end of the spring B (406) is fixedly connected with the top of the inner wall of the sliding groove.
3. A fire acousto-optic alarm device according to claim 2 characterised in that: the magnetism of one side of the sliding block B (305) opposite to the magnetic block (307) is opposite.
4. A fire acousto-optic alarm device according to claim 3 characterised in that: the back of the inner wall of the hollow block (306) is provided with a vent hole A, and the back of the inner wall of the connecting box (2) is provided with a vent hole B.
5. A fire sound and light alarm device according to claim 4, characterized in that: and a threaded cover is connected to one side of the connecting box (2) through threads.
6. A fire sound and light alarm device according to claim 5, characterized in that: the inside of the air storage groove (301) is communicated with the inside of the communication hole (302), and the inside of the communication hole (302) is communicated with the inside of the hollow block (306).
7. A fire acousto-optic alarm device according to claim 6 characterised in that: the inside of the sliding groove is communicated with the inside of the water inlet groove, and the inside of the water inlet groove is communicated with the inside of the water spraying hole (403).
8. A fire acousto-optic alarm device according to claim 7 characterised in that: the magnetism of one side of the magnetic plate (404) opposite to the sliding magnetic block (405) is opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211440617.6A CN115862244B (en) | 2022-11-17 | 2022-11-17 | Fire sound and light alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211440617.6A CN115862244B (en) | 2022-11-17 | 2022-11-17 | Fire sound and light alarm device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115862244A true CN115862244A (en) | 2023-03-28 |
| CN115862244B CN115862244B (en) | 2024-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211440617.6A Active CN115862244B (en) | 2022-11-17 | 2022-11-17 | Fire sound and light alarm device |
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| CN (1) | CN115862244B (en) |
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| CN112295137A (en) * | 2020-10-29 | 2021-02-02 | 义乌君保贸易有限公司 | Auxiliary device for reducing loss of computer room by self-alarming and self-extinguishing fire |
| CN213781161U (en) * | 2020-12-03 | 2021-07-23 | 山东世纪中维电子科技有限公司 | Weak electric device for intelligent place fire alarm |
| CN215341336U (en) * | 2021-07-12 | 2021-12-28 | 深圳市吉凯达科技有限公司 | High-sensitivity integrated fixed-point smoke alarm combined with internet of things |
| CN215387206U (en) * | 2021-07-15 | 2022-01-04 | 新疆平安顺消防安全技术服务有限公司 | Staircase fire alarm |
| CN113299031A (en) * | 2021-07-22 | 2021-08-24 | 江苏南瓯物联网科技有限公司 | Fire monitoring analog system |
| KR102439692B1 (en) * | 2021-07-30 | 2022-09-02 | 유정남 | Firefighting equipment construction system for apartment houses |
| CN216022806U (en) * | 2021-10-08 | 2022-03-15 | 深圳市宏大联合实业有限公司 | Intelligent building management is with emergent fire control cabinet |
| CN216211435U (en) * | 2021-11-02 | 2022-04-05 | 山西菲特电力工程有限公司 | Powder material deposits uses fire alarm device |
| CN217176356U (en) * | 2021-11-17 | 2022-08-12 | 辽宁普然铝业有限公司 | Novel fire burglary-resisting window convenient to report to police and flee |
| CN216877684U (en) * | 2021-11-24 | 2022-07-05 | 哈尔滨理工大学 | Two bus system fire alarm coordinated control devices |
| CN115083105A (en) * | 2022-06-23 | 2022-09-20 | 世泽科学技术研发(深圳)有限公司 | Large-scale fire alarm device for business and super utilization |
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