CN114832255A - Pop-up type rotary fire extinguishing equipment for gas station - Google Patents
Pop-up type rotary fire extinguishing equipment for gas station Download PDFInfo
- Publication number
- CN114832255A CN114832255A CN202210629938.4A CN202210629938A CN114832255A CN 114832255 A CN114832255 A CN 114832255A CN 202210629938 A CN202210629938 A CN 202210629938A CN 114832255 A CN114832255 A CN 114832255A
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- fixed
- pipe
- pop
- sleeved
- rotary fire
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/06—Fire prevention, containment or extinguishing specially adapted for particular objects or places of highly inflammable material, e.g. light metals, petroleum products
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
- A62C31/03—Nozzles specially adapted for fire-extinguishing adjustable, e.g. from spray to jet or vice versa
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
- A62C31/05—Nozzles specially adapted for fire-extinguishing with two or more outlets
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/28—Accessories for delivery devices, e.g. supports
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Nozzles (AREA)
Abstract
The invention discloses a pop-up rotary fire extinguishing device for a gas station, which relates to the field of fire fighting and comprises: a frame; the air pipe is vertically fixed in the middle of the rack; the sleeve is sleeved on the periphery of the trachea in a sliding manner; the water pipes I are arranged in a plurality and are uniformly distributed around the circumference of the air pipe; the switch assembly can be vertically sleeved in the rack in a sliding manner and is communicated and fixed with the other end of the water pipe; the guide piece is sleeved outside the gas pipe in a sliding manner, is fixed with the lower end of the sleeve pipe and is fixedly sleeved in the middle of the switch component; the supporting plate is coaxially sleeved with the air pipe and fixed on the rack and is positioned below the guide piece; the rotating disc is rotatably sleeved at the position, close to the circumference of the lower end, of the supporting disc, and the outer circumference of the rotating disc is driven by a motor fixed in the rack through a connecting gear shaft; the spraying assemblies are arranged in a plurality of numbers, and the circumferences of the spraying assemblies are uniformly distributed and fixed at the bottom of the rotating disc; and the atomizing pipe is fixed at the lower end of the air pipe.
Description
Technical Field
The invention relates to the field of fire fighting, in particular to pop-up type rotary fire extinguishing equipment for a gas station.
Background
Methods for interrupting or destroying combustion in the event of a fire can be attributed to cooling, smothering, isolation and chemical suppression, all of which require different equipment materials to be implemented according to different principles, wherein in buildings it is common to reduce the temperature of the combustion to below the ignition point with a spray stream, while isolating oxygen from the combustion for fire suppression.
However, the gas station is a special place, the consequences of fire in the gas station are the most serious, the escape is influenced in the fire by burning high temperature on one hand and smoke on the other hand, fuel in the gas station is ignited, meanwhile, non-fuel objects are ignited to generate high temperature, and the fuel burns to generate strong smoke, so that people are trapped, and the ignited materials on the escape way need to be extinguished timely, and the smoke on the road needs to be reduced.
There is therefore a need for a pop-up rotary fire fighting apparatus for gas stations that solves the problems set forth in the background above.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme: a pop-up rotary fire fighting apparatus for a gas station, comprising:
a frame;
the air pipe is vertically fixed in the middle of the rack, and the upper end of the air pipe is connected with an air pump;
the sleeve is sleeved on the periphery of the air pipe in a sliding manner, and the upper end of the sleeve is connected with a pushing piece;
the first water pipes are arranged in a plurality of numbers, are uniformly distributed around the circumference of the air pipe, and are connected with water pumps at the upper ends;
the switch assembly can be vertically sleeved in the rack in a sliding manner and is communicated and fixed with the other end of the water pipe;
the guide piece is sleeved outside the gas pipe in a sliding manner, is fixed with the lower end of the sleeve pipe and is fixedly sleeved in the middle of the switch component;
the supporting plate is coaxially sleeved with the air pipe and fixed on the rack and is positioned below the guide piece;
the rotating disc is rotatably sleeved at the position, close to the circumference of the lower end, of the supporting disc, and the outer circumference of the rotating disc is driven by a motor fixed in the rack through a connecting gear shaft;
the spraying assemblies are arranged in a plurality of numbers, and the circumferences of the spraying assemblies are uniformly distributed and fixed at the bottom of the rotating disc; and
and the atomizing pipe is fixed at the lower end of the air pipe.
Further, as preferred, be provided with reset spring between guide and the supporting disk, supporting disk and rolling disc cooperation department have seted up the annular cavity, switch module runs through supporting disk intercommunication annular cavity, just water pipe one is vertical elastically deformable tubular product with switch module connecting portion.
Further, preferably, the circumferential surface of the atomizing tube has an air hole inclined downward toward the outside.
Further, preferably, the switch assembly includes:
the sliding frame is arranged inside the rack in a sliding mode, the upper end of the sliding frame is fixedly connected with the first water pipe, and the middle of the sliding frame is fixedly connected with the guide piece;
the water pipes II are arranged in a plurality of numbers, and the circumferences of the water pipes II are fixed on the supporting disc; and
and the special-shaped sleeve is fixedly sleeved on the second water pipe and is vertically and slidably connected with the sliding frame.
Further, as preferred, the dysmorphism sleeve is for cup jointing the dicyclo-ring shape, the carriage with the cavity has been seted up in the middle of the dysmorphism sleeve cooperation part, switch module still includes that the leading truck is coaxial fixed cup joints carriage cavity up end, closed slider symmetric arrangement is two, and slidable sets up the leading truck lower extreme, the base is fixed dysmorphism sleeve inner ring up end, and the top is fixed with the support frame, and supporting spring fixes between leading truck and the support frame, and the connecting rod articulates between closed slider and the support frame.
Further, preferably, an elastic membrane is connected between the closing slider and the base.
Further, preferably, the spray assembly comprises:
the connecting pipe is vertically fixed at the lower end of the rotating disc and is communicated with the annular cavity;
the upper end of the hinged seat is fixedly connected with the connecting pipe; and
the sprayer assembly is rotatably arranged in the middle of the lower end of the hinged seat in a deviation manner.
Further, as the preferred, the articulated seat is provided with spacing protruding near one side of atomizing pipe.
Further, preferably, the head assembly includes:
the shell is rotatably arranged on the hinge seat;
the spray pipe is fixed in the middle of the shell, a flexible pipe is fixed at the upper end of the spray pipe, and a spray head is fixed at the lower end of the spray pipe; and
the balance block is fixed on one side of the upper end of the shell, and a tension spring is fixed between the balance block and the hinged seat.
Further, as the preferred, the shower nozzle is fixed with the reposition of redundant personnel net in inside for rivers subdivide, the while the shower nozzle orientation is in the straight line and does not pass through shell hinge center.
Compared with the prior art, the invention provides pop-up type rotary fire extinguishing equipment for a gas station, which has the following beneficial effects:
1. according to the invention, the circumferential surface of the atomizing pipe sprays high-pressure gas towards the air holes which are inclined downwards to the outside, so that water flow which is in contact with the surface of the atomizing pipe is quickly atomized and quickly flows to the periphery, and the smoke is adsorbed to be settled;
2. according to the invention, the spray head faces vertically downwards, the straight line does not pass through the shell hinge center, when the spray head sprays, water flow downwards and simultaneously gives vertical upwards force to the spray head, so that the spray head assembly has a tendency of rotating around the shell hinge center, the rotating tendency of the spray head assembly is fixedly counteracted by the tension spring, and meanwhile, when the rotating disc rotates, the spray direction of the spray head assembly is inclined towards the atomizing pipe according to centrifugal force through the balance block fixed at the upper end of the shell, so that the active control on the rotation of the spray head assembly is realized, and the later-stage treatment aiming at different fire conditions is more effectively carried out.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic view showing the overall construction of a pop-up type rotary fire extinguishing apparatus for a gas station;
FIG. 2 is a schematic view of a switch assembly of the pop-up rotary fire extinguishing apparatus for a gasoline station;
FIG. 3 is a schematic view of a spray assembly of a pop-up rotary fire fighting device for a gasoline station;
FIG. 4 is a schematic view showing a structure of a head assembly of the pop-up type rotary fire extinguishing apparatus for a gas station;
in the figure: 1. a frame; 2. an air tube; 3. a sleeve; 4. a first water pipe; 5. a switch assembly; 51. a carriage; 52. a special-shaped sleeve; 53. a water pipe II; 54. a guide frame; 55. closing the slider; 56. a support spring; 57. a connecting rod; 58. a support frame; 59. a base; 6. a guide member; 7. a support disc; 8. rotating the disc; 9. a spray assembly; 91. a connecting pipe; 92. a hinged seat; 93. a showerhead assembly; 931. a housing; 932. a nozzle; 933. a flexible tube; 934. a spray head; 935. a counterbalance; 936. tensioning the spring; 10. an atomizing pipe.
Detailed Description
Referring to fig. 1 to 4, in an embodiment of the present invention, a pop-up type rotary fire extinguishing apparatus for a gas station includes:
a frame 1;
the air pipe 2 is vertically fixed in the middle of the rack 1, and the upper end of the air pipe is connected with an air pump;
the sleeve 3 is sleeved on the periphery of the air pipe 2 in a sliding manner, and the upper end of the sleeve is connected with a pushing piece;
the water pipes I4 are arranged in a plurality of numbers, are uniformly distributed around the circumference of the air pipe 2, and are connected with water pumps at the upper ends;
the switch assembly 5 can be vertically sleeved in the rack 1 in a sliding manner and is communicated and fixed with the other end of the first water pipe 4;
the guide piece 6 is sleeved outside the air pipe 2 in a sliding manner, is fixed with the lower end of the sleeve 3 and is fixedly sleeved in the middle of the switch component 5;
the supporting plate 7 is coaxially sleeved with the air pipe 2 and fixed on the rack 1 and is positioned below the guide piece 6;
the rotating disc 8 is rotatably sleeved at the position, close to the circumference of the lower end, of the supporting disc 7, and the outer circumference of the rotating disc is driven by a motor fixed in the rack 1 through a connecting gear shaft;
the spraying assemblies 9 are arranged in a plurality of numbers, and are uniformly distributed and fixed at the bottom of the rotating disc 8 in the circumference; and
and the atomizing pipe 10 is fixed at the lower end of the air pipe 2.
In this embodiment, as shown in fig. 1, a return spring is arranged between the guide 6 and the support disk 7, an annular cavity is formed in a matching position of the support disk 7 and the rotating disk 8, the switch assembly 5 penetrates through the support disk 7 and is communicated with the annular cavity, and a connecting portion between the water pipe 4 and the switch assembly 5 is a vertical elastic deformation pipe.
It should be explained that, supporting disk 7 and the annular cavity of rolling disc 8 complex for also can communicate water pipe 4 when rolling disc 8 drives spraying assembly 9 and rotates, make rivers continuously supply, all can guarantee the normal operating of equipment to the different operating condition of equipment.
In a preferred embodiment, the circumference of the atomizing pipe 10 is provided with air holes which are inclined downward toward the outside.
It should be explained that the circumference surface of the atomizing pipe 10 sprays high pressure gas toward the air holes inclined downward to the outside, so that the water stream contacting the surface of the atomizing pipe 10 is rapidly atomized and rapidly flows to the periphery, and the mist is adsorbed and settled.
In this embodiment, as shown in fig. 2, the switch assembly 5 includes:
the sliding frame 51 is arranged inside the rack 1 in a sliding manner, the upper end of the sliding frame is fixedly connected with the first water pipe 4, and the middle of the sliding frame is fixedly connected with the guide piece 6;
a plurality of water pipes 53 which are circumferentially fixed on the supporting disc 7; and
and the special-shaped sleeve 52 is fixedly sleeved on the second water pipe 53 and can be vertically and slidably connected with the sliding frame 51.
In this embodiment, as shown in fig. 2, the special-shaped sleeve 52 is a double-sleeved ring, a cavity is formed in the middle of the matching portion of the sliding frame 51 and the special-shaped sleeve 52, the switch assembly 5 further includes a guide frame 54 coaxially and fixedly sleeved on the upper end surface of the cavity of the sliding frame 51, two closed sliders 55 are symmetrically arranged and slidably disposed at the lower end of the guide frame 54, a base 59 is fixed on the upper end surface of the inner ring of the special-shaped sleeve 52, a support frame 58 is fixed above the inner ring, a support spring 56 is fixed between the guide frame 54 and the support frame 58, and a connecting rod 57 is hinged between the closed slider 55 and the support frame 58.
In a preferred embodiment, an elastic membrane is connected between the closing slider 55 and the base 59.
It should be explained that when the guide 6 slides downwards, sliding downwards synchronously with the carriage 51 to which it is fixed, the closing sliders 55 slide away from each other along the guide 54 under the action of the connecting rod 57, so that the water flow passes through, and after the device stops working, the guide 6 and the switch assembly 5 are reset under the action of the return spring and the supporting spring 56, and the closing sliders 55 close to each other, blocking the water flow.
In this embodiment, as shown in fig. 3, the spraying assembly 9 includes:
the connecting pipe 91 is vertically fixed at the lower end of the rotating disc 8 and is communicated with the annular cavity;
a hinge seat 92, the upper end of which is fixedly connected with the connecting pipe 91; and
and the spray head assembly 93 is rotatably arranged on the hinged seat 92 and is deviated to the middle of the lower end.
In a preferred embodiment, a side of the hinge seat 92 close to the atomizing tube 10 is provided with a limit protrusion.
In this embodiment, as shown in fig. 4, the nozzle assembly 93 includes:
a housing 931 rotatably disposed on the hinge seat 92;
a nozzle 932 fixed in the middle of the housing 931, having a flexible tube 933 fixed at the upper end and a nozzle 934 fixed at the lower end; and
and a balance block 935 fixed to one side of the upper end of the housing 931 and having a tension spring 936 fixed between the hinge seat 92 and the balance block.
In a preferred embodiment, a diversion net is fixed inside the nozzle 934 to divide the water flow, and the nozzle 934 faces a straight line without passing through the hinge center of the housing 931.
It should be explained that, shower nozzle 934 is towards vertical downwards, the straight line of place does not pass through the articulated center of shell 931, when shower nozzle 934 sprays, rivers are downward simultaneously give the vertical ascending power of shower nozzle 934, make shower nozzle subassembly 93 have the tendency of rotating around the articulated center of shell 931, fix the rotation tendency of offsetting shower nozzle subassembly 93 through taut spring 936, when rolling disc 8 rotates simultaneously, make shower nozzle subassembly 93 spray the direction and incline to the atomizing pipe 10 through the balancing piece 935 basis centrifugal force of fixing at the upper end of shell 931, the realization is to the rotatory active control of shower nozzle subassembly 93, be convenient for the later stage to carry out more effective processing to different conflagration circumstances.
In specific implementation, aiming at different conditions needing to be treated by fire, the equipment has three modes for aiming at treatment, when articles are ignited in the coverage range of the equipment but the smoke concentration is low, the equipment sleeve 3 is started to slide downwards under the action of the pushing piece, the switch assembly 5 is driven to synchronously move downwards through the guide piece 6, the water pipe I4 and the annular cavity are communicated, so that water flow enters the spraying assembly 9, and fine water flow is sprayed to the cage area to extinguish fire; when an article is ignited and the smoke concentration is high in the coverage range of the equipment, the equipment starts an air pump communicated with the air pipe 2 while the components operate to supply air to the atomizing pipe 10, the rotating disc 8 rotates periodically, the spraying direction of the spraying assembly 9 is inclined towards the atomizing pipe 10 during rotation, so that water flow is atomized into water mist under the action of the atomizing pipe 10 to adsorb the smoke and enable the smoke to settle, and fire extinguishment is performed when the water flow does not rotate; when no article is ignited in the coverage area of the equipment and the smoke concentration is high, the rotating disc 8 is controlled to rotate continuously, the air pipe 2 supplies air continuously, and the water flow atomization state of the spraying assembly 9 is maintained to eliminate smoke.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.
Claims (10)
1. A pop-up rotary fire extinguishing apparatus for a gas station, characterized in that: the method comprises the following steps:
a frame (1);
the air pipe (2) is vertically fixed in the middle of the rack (1), and the upper end of the air pipe is connected with an air pump;
the sleeve (3) is sleeved on the periphery of the air pipe (2) in a sliding manner, and the upper end of the sleeve is connected with a pushing piece;
the water pipes I (4) are arranged in a plurality of numbers, are uniformly distributed around the circumference of the air pipe (2), and are connected with water pumps at the upper ends;
the switch assembly (5) can be vertically sleeved in the rack (1) in a sliding manner and is communicated and fixed with the other end of the first water pipe (4);
the guide piece (6) is sleeved outside the air pipe (2) in a sliding manner, is fixed with the lower end of the sleeve (3), and is fixedly sleeved in the middle of the switch component (5);
the supporting plate (7) is coaxially sleeved with the air pipe (2) and fixed on the rack (1) and is positioned below the guide piece (6);
the rotating disc (8) is rotatably sleeved at the position, close to the lower end circumference, of the supporting disc (7), and the outer circumference is driven by a motor fixed in the rack (1) through a connecting gear shaft;
the spraying assemblies (9) are arranged in a plurality of numbers, and the circumferences of the spraying assemblies are uniformly distributed and fixed at the bottom of the rotating disc (8); and
and the atomizing pipe (10) is fixed at the lower end of the air pipe (2).
2. Pop-up rotary fire fighting apparatus for gas stations as claimed in claim 1, characterized in that: be provided with reset spring between guide (6) and supporting disk (7), supporting disk (7) and rolling disc (8) cooperation department have seted up the annular cavity, switch module (5) run through supporting disk (7) intercommunication annular cavity, just water pipe (4) are vertical elastic deformation tubular product with switch module (5) connecting portion.
3. Pop-up rotary fire fighting apparatus for gas stations as claimed in claim 1, characterized in that: the circumference surface of the atomizing pipe (10) faces towards the air hole which is downward and obliquely at the outside.
4. Pop-up rotary fire fighting apparatus for gas stations as claimed in claim 1, characterized in that: the switch assembly (5) comprises:
the sliding frame (51) is arranged inside the rack (1) in a sliding manner, the upper end of the sliding frame is fixedly connected with the first water pipe (4), and the middle of the sliding frame is fixedly connected with the guide piece (6);
the water pipes II (53) are arranged in a plurality and are circumferentially fixed on the supporting disc (7); and
and the special-shaped sleeve (52) is fixedly sleeved on the second water pipe (53) and can be vertically and slidably connected with the sliding frame (51).
5. Pop-up rotary fire extinguishing apparatus for gas stations as claimed in claim 4, characterized in that: dysmorphism sleeve (52) are cup jointed the dicyclo-ring, carriage (51) with the cavity has been seted up in the middle of dysmorphism sleeve (52) cooperation part, switch module (5) still include leading truck (54) coaxial fixed cover connect carriage (51) cavity up end, closed slider (55) symmetrical arrangement is two, and slidable sets up leading truck (54) lower extreme, base (59) are fixed special-shaped sleeve (52) inner ring up end, and the top is fixed with support frame (58), and supporting spring (56) are fixed between leading truck (54) and support frame (58), and connecting rod (57) articulate between closed slider (55) and support frame (58).
6. A pop-up rotary fire extinguishing apparatus for a gas station as claimed in claim 5, wherein: an elastic membrane is connected between the closing slide block (55) and the base (59).
7. A pop-up rotary fire extinguishing apparatus for a gas station as claimed in claim 2, wherein: the spray assembly (9) comprises:
the connecting pipe (91) is vertically fixed at the lower end of the rotating disc (8) and is communicated with the annular cavity;
the upper end of the hinged seat (92) is fixedly connected with the connecting pipe (91); and
and the spray head assembly (93) is rotatably arranged on the hinged seat (92) and is deviated to the middle part of the lower end.
8. Pop-up rotary fire fighting apparatus for gas stations as claimed in claim 7, characterized in that: one side of the hinged seat (92) close to the atomizing pipe (10) is provided with a limiting protrusion.
9. Pop-up rotary fire fighting apparatus for gas stations as claimed in claim 7, characterized in that: the showerhead assembly (93) includes:
a housing (931) rotatably disposed on the hinge seat (92);
the spray pipe (932) is fixed in the middle of the shell (931), the upper end of the spray pipe is fixed with a flexible pipe (933), and the lower end of the spray pipe is fixed with a spray head (934); and
and the balance block (935) is fixed on one side of the upper end of the shell (931), and a tension spring (936) is fixed between the balance block and the hinge seat (92).
10. Pop-up rotary fire fighting apparatus for gas stations as claimed in claim 9, characterized in that: the interior of the spray head (934) is fixed with a flow distribution network, so that water flow is subdivided, and meanwhile, the spray head (934) faces to a straight line and does not pass through the hinged center of the shell (931).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210629938.4A CN114832255B (en) | 2022-06-06 | 2022-06-06 | Pop-up type rotary fire extinguishing equipment for gas station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210629938.4A CN114832255B (en) | 2022-06-06 | 2022-06-06 | Pop-up type rotary fire extinguishing equipment for gas station |
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| Publication Number | Publication Date |
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| CN114832255A true CN114832255A (en) | 2022-08-02 |
| CN114832255B CN114832255B (en) | 2022-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210629938.4A Active CN114832255B (en) | 2022-06-06 | 2022-06-06 | Pop-up type rotary fire extinguishing equipment for gas station |
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| CN (1) | CN114832255B (en) |
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| CN216653213U (en) * | 2021-11-04 | 2022-06-03 | 扬州安达雅智能设备科技有限公司 | Workshop intelligence safety inspection firebreak device |
| CN217567240U (en) * | 2022-07-04 | 2022-10-14 | 合肥研一智能科技有限公司 | Self-triggering fire extinguishing device |
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| CN207374676U (en) * | 2017-11-03 | 2018-05-18 | 杭州鼎翼智能科技有限公司 | A kind of flusher sprayed insecticide for unmanned plane |
| CN109276837A (en) * | 2018-09-25 | 2019-01-29 | 江苏微能电子科技有限公司 | The smog alarm extinguishing device of convenient disassembly |
| CN110031509A (en) * | 2019-05-21 | 2019-07-19 | 中国民用航空飞行学院 | Hangar high-pressure water mist fire-extinguishing experimental provision |
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| WO2022036699A1 (en) * | 2020-08-21 | 2022-02-24 | 唐山哈船科技有限公司 | Unmanned aerial vehicle fire extinguishing apparatus for sea port fire |
| CN214633550U (en) * | 2020-12-30 | 2021-11-09 | 中瀚时代工程设计有限公司 | Indoor fire early warning and extinguishing device |
| CN216169560U (en) * | 2021-06-08 | 2022-04-05 | 扬州盈航硅业科技有限公司 | Automatic direction-regulating fire-extinguishing spray head |
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| CN113769308A (en) * | 2021-08-24 | 2021-12-10 | 范文杰 | Indoor safe fire protection system |
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| CN217567240U (en) * | 2022-07-04 | 2022-10-14 | 合肥研一智能科技有限公司 | Self-triggering fire extinguishing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114832255B (en) | 2022-12-23 |
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