CN115584819A

CN115584819A - Decorative ceiling with fire-fighting function and using method thereof

Info

Publication number: CN115584819A
Application number: CN202211402779.0A
Authority: CN
Inventors: 陈小兵; 黄吉全; 陈春玉
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-11-10
Filing date: 2022-11-10
Publication date: 2023-01-10

Abstract

The application discloses decorate furred ceiling with fire control function of putting out a fire includes: the fire-fighting water supply device comprises a suspended ceiling plate, a connecting mechanism, a containing seat, a retraction mechanism, a fire-fighting spray head and a water inlet mechanism; the upper parts of the peripheries of the ceiling boards are movably clamped with connecting mechanisms; the containing seat is fixedly connected with the middle part of the suspended ceiling plate; the retraction mechanism is fixedly connected with the inner part of one side of the storage seat and can be retracted into the storage seat when the fire nozzle is not used; the water inlet mechanism is fixedly connected with the containing seat, and the fire-fighting nozzle can be communicated with an external water source. The invention adopts the retraction mechanism technology to realize that the fire-fighting nozzle can be retracted into the storage seat when not in use, thereby having the protection effect on the fire-fighting nozzle. The opening and closing rack is connected to the fire-fighting nozzle, so that the water inlet pipe can be conducted, the fire-fighting function can be realized by entering an external water source, and meanwhile, the ceiling plate can be conveniently mounted and dismounted by arranging the connecting mechanism.

Description

Decorative ceiling with fire-fighting function and using method thereof

Technical Field

The application relates to the technical field of suspended ceilings, in particular to a decorative suspended ceiling with a fire-fighting and extinguishing function and a using method thereof.

Background

The suspended ceiling has the functions of heat preservation, heat insulation, sound insulation and sound absorption, and is also a hidden layer for projects such as electric, ventilation air-conditioning, communication and fire prevention, alarm pipeline equipment and the like. Home decoration suspended ceilings are a common link in home decoration. The suspended ceiling is classified differently according to the material of the decorative plate. The ceiling decoration material is the main basis of distinguishing the ceiling name, and mainly has: a light steel keel gypsum board suspended ceiling, a mineral wool board suspended ceiling, a splint suspended ceiling, a special-shaped long aluminum pinch plate suspended ceiling, a square paint-coated aluminum pinch plate suspended ceiling, a painted glass suspended ceiling, an aluminum honeycomb perforated acoustic panel suspended ceiling, a whole-house duplex suspended ceiling and the like,

the existing suspended ceiling is usually provided with a hole, and then a fire-fighting nozzle is installed and connected with a water pipe on the suspended ceiling through the hole, but the fire-fighting nozzle is installed and exposed outside the suspended ceiling, so that the fire-fighting nozzle is not convenient to retract into the suspended ceiling when not in use, and when objects are transported indoors, the fire-fighting nozzle is collided, the damage is caused, and meanwhile, the attractiveness of the suspended ceiling is influenced;

in view of this, we propose a decorative ceiling with fire-fighting function.

Disclosure of Invention

1. Technical problem to be solved

The utility model provides a decorate furred ceiling with fire control function of putting out a fire has solved the technical problem who proposes in the background art, has realized the technological effect that can accomodate it when not using the fire control shower nozzle.

2. Technical scheme

The embodiment of the application provides decorate furred ceiling with fire control function of putting out a fire, include: the fire-fighting water supply device comprises a ceiling plate, a connecting mechanism, a containing seat, a retraction mechanism, a fire-fighting spray head and a water inlet mechanism, wherein the connecting mechanism is movably clamped above the periphery of the ceiling plate; the containing seat is fixedly connected with the middle part of the suspended ceiling plate; the retraction mechanism is fixedly connected with the inner part of one side of the containing seat, and a fire-fighting spray head is arranged on the retraction mechanism; the retraction mechanism can retract the fire-fighting nozzle into the containing seat when the fire-fighting nozzle is not used; the water inlet mechanism is fixedly connected with the containing seat and is connected with the fire-fighting nozzle through a pipeline, and the water inlet mechanism can be communicated with an external water source.

As an alternative scheme of this application file technical scheme, the inside water guide chamber of having seted up of furred ceiling board, both sides all communicate the water receiving pipe on the furred ceiling board.

Through adopting above-mentioned technical scheme for the furred ceiling board also has the function of fire prevention.

As an alternative scheme of the technical scheme of the application, the connecting mechanism comprises a screw rod and an inserting block, wherein the bottom of the screw rod is fixedly connected with the inserting block; the position that is close to the screw rod on the furred ceiling board is fixed and is provided with a plurality of joint seats of through connection, joint seat inner wall sets up with the activity of inserted block outer wall is pegged graft. The inner walls of the clamping seats are provided with clamping grooves.

As an alternative scheme of the technical scheme of the application, the inner wall of the lower end of the insertion block is rotatably connected with two clamping strips, the two clamping strips are fixedly connected through a spring, and the end parts of the clamping strips are movably clamped with the inner wall of the clamping seat; the joint seat lower extreme sliding fit is provided with U type piece, U type piece both ends set up with two card strip outer walls movable contact respectively.

Through adopting above-mentioned technical scheme, the inserted block alignment of joint seat and screw rod bottom on the furred ceiling board is inserted, then the card strip in the inserted block can block the inner wall at the inserted block under the effect of spring to it is fixed to realize the furred ceiling board.

As an alternative scheme of this document, the storage seat bottom is rotated and is connected and be provided with the closing plate, closing plate one side is rotated the articulated connecting rod that is provided with.

As an alternative scheme of the technical scheme of the application, the retraction mechanism comprises an electric push rod, the electric push rod is fixedly connected with the inner wall of one side of the containing seat, and the end part of the electric push rod is hinged with the connecting rod.

Through adopting above-mentioned technical scheme, start the electric push rod, the electric push rod can drive the connecting rod removal of connecting to can make the closing plate open.

As an alternative scheme of this document technical scheme, the jack still includes gear A and rack A, gear A rotates with the storage seat inner wall and is connected the setting, electricity push rod one end is connected fixedly and is provided with rack A, rack A and gear A meshing transmission setting.

As an alternative of the technical solution of the present application, the other side of the gear a is coaxially and fixedly connected with a gear B; one end of the fire-fighting nozzle is fixedly connected with a rack B, and the rack B is in meshing transmission with the gear B.

Through adopting above-mentioned technical scheme, can drive the rack A of connection and remove when the electric push rod is elongated to drive the gear A rotation of meshing, then gear A can drive the gear B rotation of connection, then can drive the rack B removal of meshing, thereby can drive the fire control shower nozzle of connection and shift out from the storage seat.

As an alternative scheme of the technical scheme of the application, the water inlet mechanism comprises a water inlet pipe, a valve plate and an opening and closing wheel, one end of the water inlet pipe is arranged in a branched structure, one branched end of the water inlet pipe is connected with the fire-fighting spray head through a hose, and the other branched end of the water inlet pipe penetrates through the inner wall of the containing seat through a pipeline and extends to the outside and is fixedly connected with one water receiving pipe; the inner wall of one end of the water inlet pipe is rotatably connected with a valve plate, and one end of the valve plate penetrates through the inner wall of the water inlet pipe and extends to the outside and is fixedly connected with an opening and closing wheel; the fire control sprayer is fixedly connected with an opening and closing rack, and the opening and closing rack is in meshing transmission with an opening and closing wheel.

Through adopting above-mentioned technical scheme, when the fire control shower nozzle removed, the rack of opening and close of connection can drive the opening and close wheel rotation of meshing to can drive the valve plate of connection and open, make in outside water source can enter into the fire control shower nozzle, carry out the water spray and put out a fire.

The use method of the decorative suspended ceiling with the fire-fighting and extinguishing function comprises the following steps:

s1, when a decorative ceiling needs to be installed, firstly, adjusting the heights of a plurality of screws to be connected with a house ceiling, then aligning and inserting clamping seats on a ceiling board and inserting blocks at the bottoms of the screws, and then clamping strips in the inserting blocks are clamped on the inner walls of the clamping seats under the action of springs, so that the ceiling board is fixed;

s2, connecting one end of the water inlet pipe with an external water pipe, and simultaneously connecting one of the water receiving pipes on the ceiling plate with a drainage pipeline;

s3, when a fire disaster occurs, the smoke sensor can detect smoke, the electric push rod is started through an electric signal, the movable rod of the electric push rod moves downwards and drives the connecting rod to move, so that the sealing plate can be opened, and meanwhile, when the movable rod of the electric push rod extends, the connected rack A can be driven to move, so that the meshed gear A is driven to rotate, the connected gear B can be driven by the gear A to rotate, the meshed rack B can be driven to move, and therefore the connected fire fighting nozzle can be driven to move out of the containing seat;

s4, when the fire control nozzle moves, the connected opening and closing rack can drive the meshed opening and closing wheel to rotate, so that the connected valve plate can be driven to be opened, an external water source can enter the fire control nozzle, and water spraying and fire extinguishing are carried out.

3. Advantageous effects

One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

1. this application is owing to adopted the jack technical means, so effectively solved the technical problem among the prior art, and then realized can receive back in the storage seat when the fire control shower nozzle does not use to play the protective effect to the fire control shower nozzle.

2. This application can open and close the closing plate when receiving and releasing the fire control shower nozzle through setting up the connecting rod, realizes the automation of device, can retrieve the fire control shower nozzle in the storage seat simultaneously to and the closing plate of closing, can make the furred ceiling board form whole plane, thereby make the furred ceiling board can have more the aesthetic property, play better decorative effect.

3. This application is through connecting at fire control shower nozzle department and opening and close the rack, can realize switching on to the inlet tube, realizes the function that the entering at outside water source realized the fire control and put out a fire, simultaneously through setting up coupling mechanism, the installation of the furred ceiling board of being convenient for is dismantled.

4. Through set up the water guide chamber in the furred ceiling board, can make cold water play thermal-insulated cooling's effect to the furred ceiling board, avoid the furred ceiling board to be heated the burning, the protection ceiling.

Drawings

FIG. 1 is a schematic overall structure diagram of a decorative ceiling with fire extinguishing function according to a preferred embodiment of the present application;

FIG. 2 is a partially cut-away and expanded schematic view of the overall structure of a decorative ceiling with fire extinguishing function according to a preferred embodiment of the present application;

FIG. 3 is a schematic exploded sectional view of a ceiling board structure of a decorative ceiling with fire extinguishing function according to a preferred embodiment of the present application;

FIG. 4 is a schematic cross-sectional structural view illustrating the connection mechanism of the decorative ceiling with fire extinguishing function according to a preferred embodiment of the present application;

FIG. 5 is a schematic sectional view of the storage seat and other structures of the decorative ceiling with fire extinguishing function according to a preferred embodiment of the present application;

FIG. 6 is a schematic structural view of a fire sprinkler and a retraction mechanism of a decorative ceiling with fire extinguishing function according to a preferred embodiment of the present application;

the reference numbers in the figures illustrate: 1. a ceiling plate; 2. a connecting mechanism; 3. a storage seat; 4. a retraction mechanism; 5. a fire sprinkler; 6. a water inlet mechanism; 101. a water guide cavity; 102. a water receiving pipe; 103. a clamping seat; 104. a U-shaped block; 201. a screw; 202. inserting a block; 203. clamping the strip; 204. a spring; 301. sealing plates; 302. a connecting rod; 401. an electric push rod; 402. a gear A; 403. a rack A; 404. a gear B; 501. a rack B; 502. opening and closing the rack; 601. a water inlet pipe; 602. a valve plate; 603. and (4) opening and closing the wheels.

Detailed Description

The present application is described in further detail below with reference to the attached drawing figures.

Referring to fig. 1 and 2, a decorative suspended ceiling with fire-fighting function comprises a suspended ceiling plate 1, a connecting mechanism 2, a containing seat 3, a retraction mechanism 4, a fire-fighting nozzle 5 and a water inlet mechanism 6;

the upper parts of the periphery of the ceiling board 1 are movably clamped with connecting mechanisms 2;

the containing seat 3 is fixedly connected with the middle part of the suspended ceiling plate 1;

the retraction mechanism 4 is fixedly connected with the inside of one side of the storage seat 3, and a fire-fighting nozzle 5 is arranged on the retraction mechanism 4; the retraction mechanism 4 can retract the fire sprinkler 5 into the storage seat 3 when the fire sprinkler is not used;

the water inlet mechanism 6 is fixedly connected with the containing seat 3, the water inlet mechanism 6 is connected with the fire-fighting nozzle 5 through a pipeline, and the water inlet mechanism 6 can be communicated between the fire-fighting nozzle 5 and an external water source.

Referring to fig. 3 and 4, a water guide cavity 101 is formed in the ceiling plate 1, and water receiving pipes 102 are communicated with both sides of the ceiling plate 1. The water guide chamber 101 may provide the ceiling tile 1 with a function of insulation and fire prevention when water is guided.

The connecting mechanism 2 comprises a screw rod 201 and an inserting block 202, and the inserting block 202 is fixedly connected to the bottom of the screw rod 201; the ceiling board 1 is fixedly provided with a plurality of clamping seats 103 at positions close to the screw 201 in a penetrating connection mode, and the inner walls of the clamping seats 103 are movably inserted into the outer walls of the inserting blocks 202 in a plugging mode. The inner walls of the clamping seats 103 are provided with clamping grooves.

The inner wall of the lower end of the inserting block 202 is rotatably connected with two clamping strips 203, the two clamping strips 203 are fixedly connected through a spring 204, and the end parts of the clamping strips 203 are movably clamped with the inner wall of the clamping seat 103; the lower end of the clamping seat 103 is provided with a U-shaped block 104 in a sliding fit manner, and two ends of the U-shaped block 104 are respectively movably contacted with the outer walls of the two clamping strips 203. Spring 204 effects automatic clamping of strip 203.

Referring to fig. 5 and 6, a sealing plate 301 is rotatably connected to the bottom of the receptacle 3, and a connecting rod 302 is hinged to one side of the sealing plate 301. The sealing effect of closing plate 301 realization to storage seat 3, the fixed smoke transducer that is provided with is connected to sealing plate 301 bottom, realizes when the conflagration appearing, through electric push rod 401 on the signal of telecommunication start jack 4.

The retraction mechanism 4 comprises an electric push rod 401, the electric push rod 401 is fixedly connected with the inner wall of one side of the storage seat 3, and the end part of a movable rod of the electric push rod 401 is rotatably hinged with the connecting rod 302.

The retraction mechanism 4 further comprises a gear A402, a rack A403 and a gear B404, the gear A402 is rotatably connected with the inner wall of the storage base 3, one end of the electric push rod 401 is fixedly connected with the rack A403, and the rack A403 is in meshing transmission with the gear A402.

The other side of the gear A402 is coaxially and fixedly provided with a gear B404; one end of the fire nozzle 5 is fixedly connected with a rack B501, and the rack B501 is in meshing transmission with a gear B404. The gear a402 and the gear B404 are different in size, so that the gear a403 and the gear B501 are driven to move different distances when the gears rotate.

Referring to fig. 5, the water inlet mechanism 6 includes a water inlet pipe 601, a valve plate 602 and an opening and closing wheel 603, one end of the water inlet pipe 601 is in a branched structure, the branched end of the water inlet pipe 601 is connected with the fire nozzle 5 through a hose, and the branched other end of the water inlet pipe 601 penetrates through the inner wall of the accommodating base 3 through a pipeline and extends to the outside and is fixedly connected with one of the water receiving pipes 102;

a valve plate 602 is rotatably connected to the inner wall of one end of the water inlet pipe 601, and one end of the valve plate 602 penetrates through the inner wall of the water inlet pipe 601 to extend to the outside and is fixedly connected with an opening and closing wheel 603; an opening and closing rack 502 is fixedly connected to the fire-fighting nozzle 5, and the opening and closing rack 502 is in meshing transmission with an opening and closing wheel 603.

Referring to fig. 1-6, a method for using a decorative ceiling with a fire-fighting function comprises the following steps:

s1, when a decorative ceiling is required to be installed, firstly, a plurality of screws 201 are adjusted to be high and connected with a house ceiling, then clamping seats 103 on the ceiling plate 1 are aligned to and inserted into insertion blocks 202 at the bottoms of the screws 201, and then clamping strips 203 in the insertion blocks 202 are clamped on the inner walls of the clamping seats 103 under the action of springs 204, so that the ceiling plate 1 is fixed;

s2, connecting one end of the water inlet pipe 601 with an external water pipe, and simultaneously connecting one water receiving pipe 102 on the ceiling plate 1 with a water drainage pipe;

s3, when a fire disaster occurs, the smoke sensor can detect smoke, the electric push rod 401 is started through an electric signal, the movable rod of the electric push rod 401 moves downwards to drive the connected connecting rod 302 to move, so that the sealing plate 301 can be opened, and meanwhile, when the movable rod of the electric push rod 401 extends, the connected rack A403 can be driven to move, so that the meshed gear A402 is driven to rotate, then the gear A402 can drive the connected gear B404 to rotate, then the meshed rack B501 can be driven to move, and therefore the connected fire-fighting nozzle 5 can be driven to move out of the containing seat 3;

s4, when the fire sprinkler 5 moves, the connected opening and closing rack 502 can drive the meshed opening and closing wheel 603 to rotate, so that the connected valve plate 602 can be driven to be opened, an external water source can enter the fire sprinkler 5, and water spraying and fire extinguishing are carried out.

The invention relates to a decorative suspended ceiling with fire-fighting and extinguishing functions, which is implemented according to the following principle: when the decorative ceiling needs to be installed, firstly, the heights of the plurality of screws 201 are adjusted to be connected and fixed with a house ceiling, then the clamping seats 103 on the ceiling board 1 are aligned with the inserting blocks 202 at the bottoms of the screws 201 to be inserted, and then the clamping strips 203 in the inserting blocks 202 are clamped on the inner walls of the clamping seats 103 under the action of the springs 204, so that the ceiling board 1 is fixed;

then, one end of the water inlet pipe 601 is connected with an external water pipe, and one of the water receiving pipes 102 on the ceiling plate 1 is connected with a drainage pipeline; when a fire disaster occurs, the smoke sensor can detect smoke, the electric push rod 401 is started through an electric signal, the movable rod of the electric push rod 401 moves downwards to drive the connected connecting rod 302 to move, so that the sealing plate 301 can be opened, and meanwhile, when the movable rod of the electric push rod 401 extends, the connected rack A403 can be driven to move, so that the meshed gear A402 is driven to rotate, then the gear A402 can drive the connected gear B404 to rotate, then the meshed rack B501 can be driven to move, so that the connected fire-fighting nozzle 5 can be driven to move out of the accommodating seat 3;

meanwhile, when the fire nozzle 5 moves, the connected opening and closing rack 502 can drive the meshed opening and closing wheel 603 to rotate, so that the connected valve plate 602 can be driven to open, an external water source can enter the fire nozzle 5, and water spraying and fire extinguishing are carried out.

The invention adopts the retraction mechanism to realize that the fire-fighting nozzle can be retracted into the storage seat when not in use, thereby playing a role of protecting the fire-fighting nozzle.

Through setting up the connecting rod, can open and close the closing plate when receiving and releasing the fire control shower nozzle, realize the automation of device, can retrieve the fire control shower nozzle in the storage seat simultaneously to and the closing plate of closing, can be so that the furred ceiling board forms whole plane, thereby make the furred ceiling board can have more the aesthetic property, play better decorative effect. Through connecting at fire control shower nozzle department and opening and close the rack, can realize switching on to the inlet tube, realize the entering at outside water source and realize the function that the fire control was put out a fire, simultaneously through setting up coupling mechanism, the installation of the furred ceiling board of being convenient for is dismantled.

The foregoing shows and describes the general principles, principal features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, which fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Decorative suspended ceiling with fire-fighting function comprises: furred ceiling board (1), coupling mechanism (2), storage seat (3), jack (4), fire control shower nozzle (5) and mechanism (6) of intaking, its characterized in that: the upper parts of the periphery of the ceiling plate (1) are movably clamped with connecting mechanisms (2);

the containing seat (3) is fixedly connected with the middle part of the suspended ceiling plate (1);

the retraction mechanism (4) is fixedly connected with the inner part of one side of the storage seat (3), and a fire-fighting spray head (5) is arranged on the retraction mechanism (4); the retraction and release mechanism (4) can retract the fire-fighting nozzle (5) into the containing seat (3) when the fire-fighting nozzle is not used;

water inlet mechanism (6) are connected fixedly and are set up on storage seat (3), and water inlet mechanism (6) link to each other with fire control shower nozzle (5) through the pipeline, and water inlet mechanism (6) can realize the intercommunication between fire control shower nozzle (5) and the outside water source.

2. The decorative suspended ceiling with fire-fighting function according to claim 1, wherein: a water guide cavity (101) is formed in the ceiling plate (1), and water receiving pipes (102) are communicated with the two sides of the ceiling plate (1).

3. A decorative ceiling with fire-fighting function according to claim 1, wherein: the connecting mechanism (2) comprises a screw rod (201) and an inserting block (202), and the bottom of the screw rod (201) is fixedly connected with the inserting block (202);

the position of being close to screw rod (201) on furred ceiling board (1) is fixed to be provided with a plurality of joint chair (103) of through connection, joint chair (103) inner wall sets up with inserted block (202) outer wall activity grafting.

4. The decorative suspended ceiling with fire-fighting and extinguishing function according to claim 3, characterized in that: the inner wall of the lower end of the inserting block (202) is rotatably connected with two clamping strips (203), the two clamping strips (203) are fixedly connected through a spring (204), and the end parts of the clamping strips (203) are movably clamped with the inner wall of the clamping seat (103);

the lower end of the clamping seat (103) is provided with a U-shaped block (104) in a sliding fit mode, and two ends of the U-shaped block (104) are respectively in movable contact with the outer walls of the two clamping strips (203).

5. A decorative suspended ceiling with fire-fighting function according to claim 4, wherein: the bottom of the containing seat (3) is rotatably connected with a sealing plate (301), and one side of the sealing plate (301) is hinged with a connecting rod (302); the bottom of the sealing plate (301) is fixedly connected with a smoke sensor.

6. The decorative suspended ceiling with fire-fighting function according to claim 5, wherein: the folding and unfolding mechanism (4) comprises an electric push rod (401), the electric push rod (401) is fixedly connected with the inner wall of one side of the storage seat (3), and the end part of the electric push rod (401) is rotatably hinged with the connecting rod (302).

7. The decorative suspended ceiling with fire-fighting function according to claim 6, wherein: the folding and unfolding mechanism (4) further comprises a gear A (402) and a rack A (403), the gear A (402) is rotatably connected with the inner wall of the containing seat (3), one end of the electric push rod (401) is fixedly connected with the rack A (403), and the rack A (403) is in meshing transmission with the gear A (402).

8. A decorative ceiling with fire-fighting function according to claim 7, wherein: the other side of the gear A (402) is coaxially and fixedly provided with a gear B (404);

one end of the fire-fighting nozzle (5) is fixedly connected with a rack B (501), and the rack B (501) is in meshing transmission with a gear B (404).

9. A decorative ceiling with fire-fighting function according to claim 1, wherein: the water inlet mechanism (6) comprises a water inlet pipe (601), a valve plate (602) and an opening and closing wheel (603), one end of the water inlet pipe (601) is arranged in a branched structure, the branched end of the water inlet pipe (601) is connected with the fire-fighting spray head (5) through a hose, and the branched other end of the water inlet pipe (601) penetrates through the inner wall of the containing seat (3) through a pipeline to extend to the outside and is fixedly connected with one water receiving pipe (102);

a valve plate (602) is rotatably connected to the inner wall of one end of the water inlet pipe (601), one end of the valve plate (602) penetrates through the inner wall of the water inlet pipe (601) to extend to the outside and is fixedly connected with an opening and closing wheel (603);

an opening and closing rack (502) is fixedly connected to the fire-fighting nozzle (5), and the opening and closing rack (502) and the opening and closing wheel (603) are in meshing transmission.

10. The using method of the decorative suspended ceiling with the fire-fighting and extinguishing function is characterized by comprising the following steps:

s1, when a decorative ceiling is required to be installed, firstly, a plurality of screws (201) are adjusted to be high and connected and fixed with a house ceiling, then clamping seats (103) on the ceiling plate (1) are aligned and inserted into insertion blocks (202) at the bottoms of the screws (201), and then clamping strips (203) in the insertion blocks (202) are clamped on the inner walls of the clamping seats (103) under the action of springs (204), so that the ceiling plate (1) is fixed;

s2, connecting one end of the water inlet pipe (601) with an external water pipe, and simultaneously connecting one water receiving pipe (102) on the ceiling plate (1) with a water drainage pipeline;

s3, when a fire disaster occurs, the smoke sensor can detect smoke, the electric push rod (401) is started through an electric signal to drive the connecting rod (302) connected to move, so that the sealing plate (301) can be opened, and meanwhile, the movable rod of the electric push rod (401) can drive the connected rack A (403) to move when extending, so that the meshed gear A (402) is driven to rotate, then the gear A (402) can drive the connected gear B (404) to rotate, then the meshed rack B (501) is driven to move, so that the connected fire-fighting nozzle (5) can be driven to move out of the accommodating seat (3);

s4, when the fire-fighting nozzle (5) moves, the connected opening and closing rack (502) can drive the meshed opening and closing wheel (603) to rotate, so that the connected valve plate (602) can be driven to open, an external water source can enter the fire-fighting nozzle (5), and water spraying and fire extinguishing are carried out.