Fire alarm device for underground comprehensive pipe gallery

Abstract

The invention relates to a fire alarm device for an underground comprehensive pipe gallery, and the device comprises a smoke alarm body, the surface of the smoke alarm body is attached with a linkage warning plate, the top wall of the smoke alarm body is provided with a driving motor, the output end of the driving motor is connected with a magnetic bent plate, and the interior of the smoke alarm body is provided with a linkage module. An electric sprayer externally connected with a water pipe is slidably mounted at the bottom of the smoke alarm body in a penetrating manner, a thermal insulation box is mounted in the smoke alarm body, a linkage rod is connected to the inner wall of one side of the thermal insulation box through a bearing, a miniature electric telescopic rod is connected to the end of the linkage rod, and a servo motor is mounted on the inner wall of the thermal insulation box. The surface of the linkage rod is fixedly sleeved with a second bevel gear, the output end of the servo motor is connected with a sleeve rod, the surface of the supporting rod is sleeved with a first bevel gear in meshed connection with the second bevel gear, linkage management of the underground pipe gallery fire alarm device is achieved, and meanwhile fire outbreak points at special positions can be effectively eliminated.

Description

Technical Field

[0001] The present invention relates to a fire alarm device for an underground comprehensive pipe gallery, and in particular to a fire alarm device for an underground comprehensive pipe gallery applied in the field of alarm and warning. Background Art

[0002] In engineering projects such as airports, subways and tunnels, the use of underground integrated pipe corridors is designed. In order to ensure the safe use of underground pipe corridors, fire alarm devices are usually used to warn of fires in underground spaces. However, existing fire alarm devices usually use a combination of smoke alarms and electric sprinklers to extinguish fires. However, the environment at the fire scene still has harmful substances such as smoke and dust, which will affect the health of people on site.

[0003] In order to solve the above problems, a design that adopts fire alarm and optimization processing has a certain market share in the market.

[0004] The specification of Chinese invention patent CN202211355947.5 discloses a public space fire warning firefighting equipment based on the Internet of Things, including a protective shell, a sealing sheet fixed on the top surface of the protective shell, a water spray part, an auxiliary lamp and a dust suction structure detachably connected to the protective shell, a protective tube fixed to the side wall of the protective shell, and a pump detachably connected to the inside of the protective tube. When the present invention is in use, the smoke sensor can detect the smoke concentration at the place of use in real time. When the smoke concentration reaches a suitable value, the smoke sensor can transmit a signal to the controller. At this time, the controller can control the alarm, the flashing light and the pump to work. The alarm and the flashing light can warn the personnel at the place of use, and the pump can receive external water to spray at the place of use. At this time, the fire-fighting equipment can automatically alarm and handle the fire, and strive for the greatest escape opportunity for the personnel at the fire location.

[0005] When the above-mentioned fire alarm device is in use, it is difficult for the fire alarm equipment near the fire point to play a timely linkage warning effect, which leads to disorderly escape of people in the underground space, reducing the escape efficiency. At the same time, the angle of water discharge from the sprinkler is fixed, and the effect of extinguishing the fire at the fire point at a specific location is not good.

[0006] Application Contents In view of the above-mentioned prior art, the technical problem to be solved by the present invention is to realize the linkage management of the underground pipe gallery fire alarm device, and at the same time be able to effectively extinguish the fire points at special locations.

[0007] In order to solve the above problems, the present invention provides a fire alarm device for an underground comprehensive pipe gallery, comprising a smoke alarm body, a linkage alarm plate attached to the surface of the smoke alarm body, a driving motor installed on the top wall of the smoke alarm body, an output end of the driving motor is connected to a magnetic bending plate magnetically connected to the linkage alarm plate, a linkage module is installed inside the smoke alarm body, and the linkage module is electrically connected to the smoke alarm body, a smoke inlet is provided at the bottom of the smoke alarm body, an electric spray head with an external water pipe is slidably installed through the bottom of the smoke alarm body, an insulation box is installed inside the smoke alarm body, a linkage rod is connected to an inner wall of one side of the insulation box through a bearing, an end of the linkage rod is connected to a micro-electric telescopic rod connected to the bottom and the top of the electric spray head, a servo motor located below the linkage rod is installed on the inner wall of the insulation box, a second bevel gear is fixedly sleeved on the surface of the linkage rod, a sleeve rod is connected to the output end of the servo motor, and a support rod is connected above the sleeve rod, and a first bevel gear meshing with the second bevel gear is sleeved on the surface of the support rod.

[0008] In the above-mentioned fire alarm device for underground comprehensive pipeline corridors, linkage management can be realized when conducting fire warning management in underground comprehensive pipeline corridors, and then the smoke alarm body installed near the fire point can use the rotation of the surface linkage alarm plate to remind the escaping personnel of the direction of the fire point, thereby effectively escaping. In addition, the inclined spraying of the electric sprinkler head can be used to effectively extinguish the fire point directly below the smoke alarm body and in the fire extinguishing blind spot.

[0009] As a further improvement of the present application, a clamping block is connected to the surface of the support rod near the bottom end, an inward-facing cylindrical groove is provided inside the sleeve rod, and the inner wall of the cylindrical groove is provided with a plurality of square grooves that are slidably connected to the clamping block, a plurality of clamping blocks located above the clamping block are installed on the surface of the support rod, and the inner wall of the No. 1 bevel gear is provided with a strip groove corresponding to the clamping block.

[0010] As a further improvement of the present application, the length of the strip groove is smaller than the thickness of the first bevel gear, and the top position height of the strip groove is lower than the top position height of the first bevel gear, and the strip groove is slidably connected with the clamping block.

[0011] As a further improvement of the present application, a vacuum groove is provided inside the linkage alarm plate, and the interior of the vacuum groove is filled with neon gas and is provided with an electric wire, which is electrically connected to the smoke alarm body.

[0012] As a further improvement of the present application, a heat expansion plate is installed on the inner wall of one side of the thermal insulation box, and the end of the heat expansion plate is connected to a support plate. A through hole is provided inside the support plate, and the radius of the through hole is not less than the sum of the cross-sectional width value of the clamping block and the radius value of the support rod, and the cross-sectional width value of the clamping block is not less than the cross-sectional width value of the clamping block.

[0013] As a further improvement of the present application, in the initial state, the overlap area between the tail end of the abutment plate and the bottom end of the support rod does not exceed one fifth of the projection area of ​​the support rod.

[0014] As a further improvement of the present application, a bend pipe is connected to the top wall of the temperature insulation box, and the bend pipes are distributed on both sides of the linkage rod, and the tail end of the bend pipe is connected to the top end of the surface of the first bevel gear through a rotating joint.

[0015] As another improvement of the present application, the surface of the linkage alarm plate is provided with a through groove located above the vacuum groove, a hot melt block is embedded in the surface of the through groove, the inner wall of the through groove is arranged with symmetrically arranged elastic telescopic parts, and the tail end of the elastic telescopic part is connected to a sinker.

[0016] As another improved supplement of the present application, the sinker is in pressure contact with the hot melt block, and the stretching length of the elastic telescopic member is greater than the vertical distance between the bottom end of the linkage alarm plate and the through slot.

[0017] To sum up, the present application utilizes a linkage alarm board, which can play an effective alarm effect with the help of whether the electric wire is started or not. At the same time, the linkage alarm board can also be used to give an effective directional alarm to the smoke alarm body installed near the fire point, so as to avoid disorderly escape of escaping personnel and improve escape efficiency. At the same time, the micro electric telescopic rod, servo motor and linkage rod can be used to adjust the spray direction of the electric spray head, so as to effectively extinguish the fire in special positions, such as directly below the smoke alarm body or on the ceiling, thereby improving the comprehensive treatment of the smoke alarm body for the fire, and then improving the safety management of the underground comprehensive pipeline corridor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the first implementation method of the present application; Figure 2 This is a diagram showing the internal structure of the smoke alarm body according to the first embodiment of the present application; Figure 3 This is a bottom view schematic diagram of the smoke alarm body according to the first embodiment of the present application; Figure 4 This is a schematic diagram of the internal structure of the temperature isolation box according to the first embodiment of the present application; Figure 5 This is an exploded view between the servo motor and the thermal expansion plate of the first embodiment of the present application; Figure 6 This is a schematic diagram of the state in which the micro electric telescopic rod and the servo motor of the first embodiment of the present application are started; Figure 7 This is a schematic diagram of the state of the linkage alarm panel linkage alarm of the first implementation mode of the present application; Figure 8This is a schematic diagram of escape after the linkage alarm panel linkage alarm of the first implementation mode of the present application; Fig. 9 This is a schematic diagram of the extinguishing path of the electric sprinkler when the micro electric telescopic rod and the servo motor are not started in the first embodiment of the present application; Fig.10 This is a schematic diagram of the extinguishing path of the electric sprinkler when the micro electric telescopic rod and the servo motor of the first embodiment of the present application are started; Fig.11 This is a structural schematic diagram of the second implementation mode of the present application; Fig.12 This is a cross-sectional view of the third embodiment of the present application; Fig.13 This is a schematic diagram of the working status of the third implementation mode of the present application.

[0019] Description of the numbers in the figure: 1. Smoke alarm body; 2. Linkage warning plate; 21. Hot melt block; 22. Pendant; 23. Elastic telescopic part; 3. Magnetic bending plate; 4. Driving motor; 5. Insulation box; 6. Smoke inlet; 7. Electric nozzle; 8. Servo motor; 81. Sleeve rod; 82. Support rod; 821. Block; 822. No. 1 bevel gear; 823. Snap block; 9. Micro electric telescopic rod; 10. Linkage rod; 101. No. 2 bevel gear; 11. Thermal expansion plate; 111. Abutment plate. DETAILED DESCRIPTION

[0020] The following describes two implementation modes of the present application in detail with reference to the accompanying drawings.

[0021] The first implementation method: Figure 1-10 A fire alarm device for an underground integrated pipe gallery is shown, comprising a smoke alarm body 1, a linkage warning plate 2 is attached to the surface of the smoke alarm body 1, a driving motor 4 is installed on the top wall of the smoke alarm body 1, an output end of the driving motor 4 is connected to a magnetic bending plate 3 magnetically connected to the linkage warning plate 2, a linkage module is installed inside the smoke alarm body 1, and the linkage module is electrically connected to the smoke alarm body 1, a smoke inlet 6 is provided at the bottom of the smoke alarm body 1, an electric nozzle 7 with an external water pipe is slidably installed through the bottom of the smoke alarm body 1, and the smoke An insulation box 5 is installed inside the fog alarm body 1, and a linkage rod 10 is connected to the inner wall of one side of the insulation box 5 through a bearing. The end of the linkage rod 10 is connected to a micro-electric telescopic rod 9 whose bottom is connected to the top of the electric spray head 7. A servo motor 8 located below the linkage rod 10 is installed on the inner wall of the insulation box 5. A No. 2 bevel gear 101 is fixedly sleeved on the surface of the linkage rod 10. A sleeve rod 81 is connected to the output end of the servo motor 8, and a support rod 82 is connected to the top of the sleeve rod 81. The surface of the support rod 82 is sleeved with a No. 1 bevel gear 822 meshing with the No. 2 bevel gear 101.

[0022] Specifically, when a fire occurs, the smoke alarm body 1 in the fire environment first senses the existence of the fire, and then uses the linkage module to send relevant signals to the linkage modules in the smoke alarm bodies 1 around the smoke alarm body 1 that has detected the fire. At this time, the driving motors 4 inside the surrounding smoke alarm bodies 1 rotate at a corresponding angle, so that the linkage warning plates 2 on the surfaces of the surrounding smoke alarm bodies 1 are all facing the smoke alarm body 1 in the fire environment, thereby achieving a linkage warning effect; When the smoke alarm body 1 detects the presence of fire, the electric spray head 7 is activated to form an umbrella-shaped water jet to suppress and extinguish the fire; Since there is a blind area for extinguishing the water flow sprayed by the electric spray head 7, it is difficult to achieve an effective extinguishing effect when the fire point is located directly below the smoke alarm body 1. At this time, the linkage rod 10 rotates and the micro-electric telescopic rod 9 is started, so that the electric spray head 7 can fall. Since the diameter of the electric spray head 7 is larger than the micro-electric telescopic rod 9, the diameter of the circular hole for sliding the electric spray head 7 opened at the bottom of the insulation box 5 and the smoke alarm body 1 is larger than the micro-electric telescopic rod 9, so that the electric spray head 7 can be smoothly deflected, and then the sprayed water flow can impact the fire point directly below the smoke alarm body 1 and the fire spread through the ceiling, so as to achieve a vertical fire extinguishing treatment, and then achieve an effective extinguishing effect on the fire point at a special position; It should be added that, according to the location of the fire point and the spread of the fire, the micro electric telescopic rod 9 is selectively started. When the micro electric telescopic rod 9 is started (the micro electric telescopic rod 9 and the servo motor 8 are started synchronously), the electric spray head 7 made of the heat insulating material falls, and the gap formed allows external heat to enter the interior of the insulation box 5, thereby causing the thermal expansion plate 11 to extend, causing the subsequent linkage rod 10 to rotate.

[0023] A clamping block 821 is connected to the surface of the support rod 82 near the bottom end, an inward-facing cylindrical groove is provided inside the sleeve rod 81, and the inner wall of the cylindrical groove is provided with a plurality of square grooves that are slidably connected to the clamping block 821, a plurality of clamping blocks 823 located above the clamping block 821 are installed on the surface of the support rod 82, and the inner wall of the No. 1 bevel gear 822 is provided with a strip groove corresponding to the clamping block 823.

[0024] Specifically, the support rod 82 is located above the sleeve rod 81 in the initial state, so that the linkage rod 10 is in a non-rotating state; After the support rod 82 falls into the cylindrical groove in the sleeve rod 81, the clamping block 821 falls into one of the square grooves, so that when the sleeve rod 81 rotates following the servo motor 8, it can smoothly drive the support rod 82 to rotate, and then drive the No. 1 bevel gear 822 connected to the strip groove through the clamping block 823 on the surface of the support rod 82 to rotate, and then drive the No. 2 bevel gear 101 to rotate, thereby driving the linkage rod 10 to rotate, so that the electric nozzle 7 is deflected.

[0025] The length of the strip groove is smaller than the thickness of the first bevel gear 822 , and the top position height of the strip groove is lower than the top position height of the first bevel gear 822 . The strip groove is slidably connected with the clamping block 823 .

[0026] Specifically, when the support rod 82 is above the sleeve rod 81 or the support rod 82 falls into the cylindrical groove inside the sleeve rod 81, the strip groove and the clamping block 823 are always in a sliding connection state, thereby ensuring the stable connection between the support rod 82 and the first bevel gear 822.

[0027] A vacuum groove is provided inside the linkage alarm plate 2 , and the interior of the vacuum groove is filled with neon gas and is provided with an electric wire, which is electrically connected to the smoke alarm body 1 .

[0028] Specifically, neon is a colorless gas. When a fire is detected, the electric wire is energized, and the neon gas in a vacuum environment turns red, which can enhance the warning effect and avoid the release of erroneous warning information when there is no fire.

[0029] A heat expansion plate 11 is installed on the inner wall of one side of the temperature insulation box 5, and the end of the heat expansion plate 11 is connected to a support plate 111. A through hole is provided inside the support plate 111, and the radius of the through hole is not less than the sum of the cross-sectional width value of the clamping block 823 and the radius value of the support rod 82. The cross-sectional width value of the clamping block 823 is not less than the cross-sectional width value of the clamping block 821. In the initial state, the overlapping area value of the tail end of the support plate 111 and the bottom end of the support rod 82 does not exceed one-fifth of the projection area value of the support rod 82.

[0030] Specifically, in the initial state of the thermal expansion plate 11, the abutment plate 111 at the rear end can support the support rod 82 to prevent it from falling into the inside of the sleeve rod 81. When the micro electric telescopic rod 9 is started, due to the diffusion of heat, the thermal expansion plate 11 extends and drives the through hole inside the abutment plate 111 to move to the bottom of the support rod 82, so that the support rod 82 can fall into the inside of the sleeve rod 81, and then the support rod 82 can rotate under the rotation of the sleeve rod 81.

[0031] The top wall of the temperature-isolating box 5 is connected with a bent pipe, and the bent pipes are distributed on both sides of the linkage rod 10 , and the tail end of the bent pipe is connected to the top end of the surface of the first bevel gear 822 through a rotating joint.

[0032] Specifically, by connecting the top of the bearing elbow with the top of the temperature-isolating box 5, such a design can keep the first bevel gear 822 at a constant height, thereby maintaining its meshing connection with the second bevel gear 101 without affecting its subsequent rotation.

[0033] Second implementation method: Figure 11-13 , wherein the components identical or corresponding to those in the first embodiment are marked with the corresponding reference numerals in the first embodiment. For the sake of simplicity, only the differences from the first embodiment are described below. The second embodiment is different from the first embodiment in that: a through groove located above the vacuum groove is provided on the surface of the linkage warning plate 2, a hot melt block 21 is embedded on the surface of the through groove, and symmetrically arranged elastic telescopic members 23 are arranged on the inner wall of the through groove, and a sinker 22 is connected to the tail end of the elastic telescopic member 23.

[0034] The sinker 22 is in press contact with the hot melt block 21 , and the stretching length of the elastic telescopic member 23 is greater than the vertical distance between the bottom end of the linkage warning plate 2 and the through groove.

[0035] Specifically, in order to avoid the warning effect being unclear (there are color blind people and people with poor eyesight among the escapees, and it is difficult to easily obtain the warning information issued by the linkage warning board 2), this implementation method is adopted; Near the fire point, the ambient temperature rises, and the hot melt block 21 melts and breaks away from the through groove. At this time, the elastic telescopic part 23 in the compressed state pops out and is straightened under the action of the sinker 22, shaking on the surface of the linkage alarm plate 2 to enhance the alarm effect.

[0036] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A fire alarm device for an underground integrated pipe gallery, comprising a smoke alarm body (1), characterized in that: The surface of the smoke alarm body (1) is bonded with a linkage warning plate (2); the top wall of the smoke alarm body (1) is mounted with a driving motor (4); the output end of the driving motor (4) is connected to a magnetic bending plate (3) magnetically connected to the linkage warning plate (2); a linkage module is mounted inside the smoke alarm body (1), and the linkage module is electrically connected to the smoke alarm body (1); a smoke inlet (6) is provided at the bottom of the smoke alarm body (1); an electric spray head (7) connected to an external water pipe is slidably mounted through the bottom of the smoke alarm body (1); and a temperature insulation box (5) is mounted inside the smoke alarm body (1). ), a linkage rod (10) is connected to an inner wall of one side of the temperature isolation box (5) via a bearing, an end of the linkage rod (10) is connected to a micro electric telescopic rod (9) whose bottom is connected to the top of the electric spray head (7), a servo motor (8) located below the linkage rod (10) is installed on the inner wall of the temperature isolation box (5), a second bevel gear (101) is fixedly sleeved on the surface of the linkage rod (10), an output end of the servo motor (8) is connected to a sleeve rod (81), and a support rod (82) is connected above the sleeve rod (81), and a first bevel gear (822) meshingly connected to the second bevel gear (101) is sleeved on the surface of the support rod (82).

2. A fire alarm device for an underground integrated pipe gallery according to claim 1, characterized in that: A clamping block (821) is connected to a position near the bottom end of the support rod (82), an inwardly recessed cylindrical groove is provided inside the sleeve rod (81), and a plurality of square grooves are provided on the inner wall of the cylindrical groove and are slidably connected to the clamping block (821), a plurality of clamping blocks (823) located above the clamping block (821) are installed on the surface of the support rod (82), and a strip groove corresponding to the clamping block (823) is provided on the inner wall of the first bevel gear (822).

3. A fire alarm device for an underground utility corridor according to claim 2, characterized in that: The length of the strip groove is less than the thickness of the first bevel gear (822), and the top position height of the strip groove is lower than the top position height of the first bevel gear (822), and the strip groove is engaged and slidably connected with the clamping block (823).

4. A fire alarm device for an underground utility corridor according to claim 1, characterized in that: A vacuum groove is provided inside the linkage warning plate (2), and the interior of the vacuum groove is filled with neon gas and is provided with an electric wire, and the electric wire is electrically connected to the smoke alarm body (1).

5. The fire alarm device for an underground integrated pipe gallery according to claim 1 is characterized in that: A heat expansion plate (11) is installed on an inner wall of one side of the heat insulation box (5); an end of the heat expansion plate (11) is connected to a support plate (111); a through hole is provided inside the support plate (111); and a radius of the through hole is not less than the sum of a cross-sectional width value of the clamping block (823) and a radius value of the support rod (82); and a cross-sectional width value of the clamping block (823) is not less than a cross-sectional width value of the clamping block (821).

6. A fire alarm device for an underground utility corridor according to claim 5, characterized in that: In the initial state, the overlap area between the rear end of the abutment plate (111) and the bottom end of the support rod (82) does not exceed one fifth of the projection area of ​​the support rod (82).

7. A fire alarm device for an underground utility corridor according to claim 1, characterized in that: The top wall of the temperature isolation box (5) is connected to a curved pipe, and the curved pipes are distributed on both sides of the linkage rod (10), and the tail end of the curved pipe is connected to the top end of the surface of the first bevel gear (822) via a rotating joint.

8. A fire alarm device for an underground utility corridor according to claim 4, characterized in that: The surface of the linkage warning plate (2) is provided with a through groove located above the vacuum groove, a hot melt block (21) is embedded in the surface of the through groove, and symmetrically arranged elastic telescopic parts (23) are arranged on the inner wall of the through groove, and the tail end of the elastic telescopic part (23) is connected to a sinker (22).

9. A fire alarm device for an underground utility corridor according to claim 8, characterized in that: The sinker (22) is in press contact with the hot melt block (21), and the stretching length of the elastic telescopic member (23) is greater than the vertical distance between the bottom end of the linkage warning plate (2) and the through slot.

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