Fire alarm device

Abstract

The utility model discloses a fire alarm device which comprises a movable mechanism, and a monitoring mechanism and an air exhaust mechanism are arranged on the surface of the movable mechanism. The movable mechanism comprises a support, a plurality of fixing plates and a mounting plate are fixed to the surface of the support, a rotating shaft is rotationally connected to the surface of the mounting plate, a transmission wheel is fixed to the surface of the rotating shaft, a belt is mounted on the surface of the transmission wheel, a sliding table is fixed to the surface of the outer side of the belt, and a sliding rail is fixed to the surface of the support. A fixing frame is fixed to the surface of the mounting plate on one side, and a driving motor is fixed to the surface of the fixing frame; the monitoring mechanism comprises a monitoring shell, a smoke alarm, a waterproof breathable film and a first fan are fixed to the inner wall of the monitoring shell, and a filter screen is slidably connected to the surface of the monitoring shell. The smoke alarm has the advantages that the smoke alarm can continuously move in a preset track, the detection range is widened, and the problems that an existing smoke alarm is fixed in position and small in detection range are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting equipment, in particular to a fire alarm device. Background Technique

[0002] The fire alarm device is one of the means to prevent fires. Generally, common fire alarm devices include various fire detectors, manual alarm buttons, fire hydrant start pumps, alarms, on-site execution modules, etc. The fire alarm can monitor the concentration of smoke through the smoke sensor arranged inside it, so as to judge whether there is a fire.

[0003] However, for some relatively wide places, when smoke is emitted from a small fire source, due to the fixed position of the smoke alarm, it is difficult to be timely sensed by the fire source far away from the smoke alarm, thus missing the best early warning time. Therefore, a new type of fire-fighting device is needed to improve the detection range and efficiency of the smoke alarm. Content of the Utility Model

[0004] The purpose of the utility model is to provide a fire alarm device, which has the advantages of being able to move continuously within a predetermined track and improving the detection range, and solves the problem that the current smoke alarm has a fixed position and a small detection range.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a fire alarm device, including a moving mechanism, on the surface of which a monitoring mechanism and an air extraction mechanism are arranged;

[0006] The moving mechanism includes a bracket, on the surface of which a plurality of fixing plates and mounting plates are fixed. A rotating shaft is rotatably connected to the surface of the mounting plate. A transmission wheel is fixed on the surface of the rotating shaft. A belt is installed on the surface of the transmission wheel. A sliding table is fixed on the outer surface of the belt. A slide rail is fixed on the surface of the bracket. A fixing frame is fixed on the surface of one of the mounting plates. A driving motor is fixed on the surface of the fixing frame;

[0007] The monitoring mechanism includes a monitoring shell, inside the wall of which a smoke alarm, a waterproof breathable film and a first fan are fixed. A filter screen is slidably connected to the surface of the monitoring shell. A buzzer, a warning light and a controller are fixed on the surface of the monitoring shell;

[0008] The air extraction mechanism includes an air extraction shell, on the surface of which a plurality of second fans are fixed. A rectangular corrugated pipe is communicated with the surface of the air extraction shell. An air suction shell is communicated with the surface of the rectangular corrugated pipe. Expansion rods are fixed on the surfaces of both the air extraction shell and the air suction shell.

[0009] As a preferred fire alarm device of the utility model, a plurality of L-shaped plates are fixed on the surface of the bracket, and the surface of the L-shaped plates is slidably connected with the surface of the belt.

[0010] Preferably, as a fire alarm device of the present utility model, a knob is threadedly penetrated through the surface of the telescopic rod.

[0011] Preferably, as a fire alarm device of the present utility model, a grid is fixed on the surface of the air suction shell.

[0012] Preferably, as a fire alarm device of the present utility model, a plurality of partition plates are fixed on the inner wall of the air extraction shell, and the partition plates are fixedly connected to the surface of the second fan.

[0013] Preferably, as a fire alarm device of the present utility model, a side plate is fixed on the surface of the filter screen, threaded holes are formed in the surfaces of the side plate and the monitoring shell, and the side plate and the monitoring shell are detachably connected by bolts through the threaded holes.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. Through the setting of the moving mechanism, the smoke detector of the present utility model can move. The fixing plate is used to be fixed to the ceiling. When the driving motor is started, one side rotating shaft will drive the rotating wheel on one side to rotate. At the same time, the rotating wheel on this side can drive the rotating wheel on the other side to rotate through the belt, so that the belt can move on the surfaces of the two rotating wheels. And when the belt moves, it will drive the sliding table to slide on the sliding rail. Through this design, the sliding table can drive the smoke detector to move continuously, thereby increasing the detection range of the smoke detector. Especially for irregular or large spaces, such a design can ensure that each area is monitored periodically, reduce blind spots, and improve safety.

[0016] 2. Through the setting of the monitoring mechanism, the smoke detector of the present utility model can monitor the flue gas. When the first fan is started, the first fan will extract the external air and convey it to the smoke detector, so that the smoke detector can actively inhale the external air for monitoring. Compared with waiting passively for the smoke to arrive, this design can detect distant or weak smoke signals earlier. At the same time, dust and large particles in the air can be intercepted by the filter screen, and moisture in the air can be blocked by the waterproof breathable membrane to avoid the influence of moisture on the detection effect. When the smoke detector detects smoke, the smoke detector will transmit a signal to the controller. At this time, the controller will turn on the buzzer and warning light to enable nearby personnel to receive a warning effect.

[0017] 3. Through the setting of the air extraction mechanism, the flue gas monitoring range of the present utility model can be further expanded. When the second fan is started, it blows downward, generating negative pressure inside the air extraction shell, enabling the suction shell to extract the nearby air. Moreover, the rectangular corrugated pipe can extend, thereby extending the adsorption range of the suction shell, allowing the flue gas dispersed far away onto the ceiling to be transported to below the bracket through the suction of the suction shell and the transmission of the second fan, making it easier for the smoke detector to detect the nearby flue gas, and further improving the detection range of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a bottom perspective structural schematic diagram of the present utility model;

[0019] Figure 2 is a top perspective structural schematic diagram of the present utility model;

[0020] Figure 3 is a bottom structural schematic diagram of the moving mechanism in the present utility model;

[0021] Figure 4 is a top structural schematic diagram of the moving mechanism in the present utility model;

[0022] Figure 5 is a cross-sectional structural schematic diagram of the monitoring mechanism in the present utility model;

[0023] Figure 6 is a structural schematic diagram of the air extraction mechanism in the present utility model;

[0024] Figure 7 of the present utility model Figure 3 is an enlarged structural schematic diagram of part A.

[0025] In the figure: 1. Moving mechanism; 101. Bracket; 102. Fixed plate; 103. Mounting plate; 104. Rotating shaft; 105. Driving wheel; 106. Belt; 107. Slide table; 108. Slide rail; 109. Fixed frame; 110. Driving motor; 111. L-shaped plate; 2. Monitoring mechanism; 201. Monitoring shell; 202. Smoke detector; 203. Waterproof and breathable membrane; 204. First fan; 205. Filter screen; 206. Buzzer; 207. Warning light; 208. Side plate; 209. Controller; 3. Air extraction mechanism; 301. Air extraction shell; 302. Second fan; 303. Rectangular corrugated pipe; 304. Suction shell; 305. Expansion rod; 306. Knob; 307. Partition board; 308. Grid. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Please refer to Figures 1-7 , a fire alarm device, including a moving mechanism 1, with a monitoring mechanism 2 and an air extraction mechanism 3 arranged on the surface of the moving mechanism 1;

[0027] The movable mechanism 1 enables the smoke alarm 202 to move, the monitoring mechanism 2 can monitor the flue gas, and the air extraction mechanism 3 can further expand the range of flue gas monitoring.

[0028] The movable mechanism 1 includes a bracket 101. Multiple fixing plates 102 and mounting plates 103 are fixed on the surface of the bracket 101. The number of mounting plates 103 is two. A rotating shaft 104 is rotatably connected to the surface of the mounting plate 103. A transmission wheel 105 is fixed on the surface of the rotating shaft 104. A belt 106 is installed on the surface of the transmission wheel 105. A sliding table 107 is fixed on the outer surface of the belt 106. A slide rail 108 is fixed on the surface of the bracket 101. The sliding table 107 is slidably connected to the surface of the slide rail 108. A fixing frame 109 is fixed on the surface of one side mounting plate 103. A driving motor 110 is fixed on the surface of the fixing frame 109. The output shaft of the driving motor 110 penetrates through the fixing frame 109 and is fixed to one side rotating shaft 104.

[0029] The fixing plate 102 is used to fix to the ceiling. When the driving motor 110 is started, one side rotating shaft 104 will drive the transmission wheel 105 on that side to rotate. At the same time, the transmission wheel 105 on this side can drive the transmission wheel 105 on the other side to rotate through the belt 106, so that the belt 106 can move on the surfaces of the two transmission wheels 105. And when the belt 106 moves, it will also drive the sliding table 107 to slide on the surface of the slide rail 108. Through this design, the sliding table 107 can drive the smoke alarm 202 to move continuously, thereby increasing the detection range of the smoke alarm 202. Especially for irregular or large spaces, such a design can ensure that each area is monitored periodically, reduce blind spots, and improve safety.

[0030] The monitoring mechanism 2 includes a monitoring shell 201. The monitoring shell 201 is fixed on the surface of the sliding table 107. A smoke alarm 202, a waterproof and breathable membrane 203, and a first fan 204 are fixed on the inner wall of the monitoring shell 201. A filter screen 205 is slidably connected to the surface of the monitoring shell 201. A buzzer 206, a warning light 207, and a controller 209 are fixed on the surface of the monitoring shell 201. The controller 209 is electrically connected to the smoke alarm 202, the buzzer 206, and the warning light 207.

[0031] The smoke detector 202 can monitor the flue gas. When the first fan 204 is started, the first fan 204 will draw in outside air and transport it to the smoke detector 202, enabling the smoke detector 202 to actively inhale the outside air for monitoring. Compared with passive waiting for the smoke to arrive, this design can detect distant or weak smoke signals earlier. At the same time, dust and large particles in the air can be intercepted by the filter screen 205, and moisture in the air can be blocked by the waterproof breathable membrane 203 to prevent moisture from affecting the detection effect. When the smoke detector 202 detects smoke, the smoke detector 202 will transmit a signal to the controller 209. At this time, the controller 209 will turn on the buzzer 206 and the warning light 207 to alert nearby personnel.

[0032] The air extraction mechanism 3 includes an air extraction shell 301. The air extraction shell 301 is fixed on the surface of the fixed plate 102. A plurality of second fans 302 are fixed on the surface of the air extraction shell 301. A rectangular corrugated pipe 303 is communicated with the surface of the air extraction shell 301. An air suction shell 304 is communicated with the surface of the rectangular corrugated pipe 303. Expansion rods 305 are fixed on the surfaces of both the air extraction shell 301 and the air suction shell 304.

[0033] When the second fan 302 is started, it will blow downward, creating a negative pressure inside the air extraction shell 301, enabling the air suction shell 304 to extract nearby air. And the rectangular corrugated pipe 303 can expand to extend the adsorption range of the air suction shell 304, allowing the flue gas floating far away to the ceiling to be transported below the bracket 101 through the suction of the air suction shell 304 and the transmission of the second fan 302, making it easier for the smoke detector 202 to detect the nearby flue gas and further improving the detection range of the device.

[0034] Furthermore, a plurality of L-shaped plates 111 are fixed on the surface of the bracket 101, and the surface of the L-shaped plates 111 is slidably connected to the surface of the belt 106.

[0035] The L-shaped plates 111 can support the bottom of the belt 106 to prevent the belt 106 from sagging.

[0036] Furthermore, a knob 306 is threaded through the surface of the expansion rod 305.

[0037] After the expansion rod 305 adjusts the extension distance, rotating the knob 306 can enable the expansion rod 305 to obtain a limiting effect through friction, preventing the air suction shell 304 from moving after adjusting the extended position.

[0038] Furthermore, a grid 308 is fixed on the surface of the air suction shell 304.

[0039] The grid 308 can prevent large impurities from being sucked into the air suction shell 304 and avoid damage to the second fan 302 caused by large impurities.

[0040] Furthermore, a plurality of partitions 307 are fixed to the inner wall of the air extraction housing 301, and the partitions 307 are fixedly connected to the surface of the second blower 302;

[0041] The partitions 307 can provide a sealing effect on the surface of the air extraction housing 301, preventing air from entering the interior of the air extraction housing 301 through the gaps between the plurality of second blowers 302.

[0042] Furthermore, side plates 208 are fixed to the surface of the filter screen 205. Threaded holes are provided on the surfaces of both the side plates 208 and the monitoring housing 201. The side plates 208 and the monitoring housing 201 are detachably connected by bolts through the threaded holes;

[0043] With this design, the filter screen 205 can be detached from the monitoring housing 201 through the side plates 208 and bolts, facilitating the cleaning of the filter screen 205.

[0044] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A fire alarm device, characterized in that: It comprises a movable mechanism (1), wherein a monitoring mechanism (2) and an air extraction mechanism (3) are arranged on the surface of the movable mechanism (1); The movable mechanism (1) comprises a bracket (101), a plurality of fixing plates (102) and a mounting plate (103) are fixed on the surface of the bracket (101), a rotating shaft (104) is rotatably connected to the surface of the mounting plate (103), a transmission wheel (105) is fixed on the surface of the rotating shaft (104), a belt (106) is installed on the surface of the transmission wheel (105), a slide table (107) is fixed on the outer surface of the belt (106), a slide rail (108) is fixed on the surface of the bracket (101), a fixing frame (109) is fixed on the surface of the mounting plate (103) on one side, and a driving motor (110) is fixed on the surface of the fixing frame (109); The monitoring mechanism (2) comprises a monitoring shell (201), a smoke alarm (202), a waterproof breathable membrane (203) and a first fan (204) are fixed on the inner wall of the monitoring shell (201), a filter (205) is slidably connected to the surface of the monitoring shell (201), and a buzzer (206), a warning light (207) and a controller (209) are fixed on the surface of the monitoring shell (201); The air extraction mechanism (3) comprises an air extraction shell (301), a plurality of second fans (302) are fixed on the surface of the air extraction shell (301), the surface of the air extraction shell (301) is connected to a rectangular corrugated pipe (303), the surface of the rectangular corrugated pipe (303) is connected to an air suction shell (304), and telescopic rods (305) are fixed on the surfaces of both the air extraction shell (301) and the air suction shell (304).

2. A fire alarm device according to claim 1, characterized in that: A plurality of L-shaped plates (111) are fixed on the surface of the bracket (101), and the surface of the L-shaped plates (111) is slidably connected to the surface of the belt (106).

3. A fire alarm device according to claim 1, characterized in that: The surface of the telescopic rod (305) is threaded with a knob (306).

4. A fire alarm device according to claim 1, characterized in that: A grid (308) is fixed on the surface of the air intake shell (304).

5. A fire alarm device according to claim 1, characterized in that: A plurality of partitions (307) are fixed to the inner wall of the air extraction shell (301), and the partitions (307) are fixedly connected to the surface of the second fan (302).

6. A fire alarm device according to claim 1, characterized in that: A side plate (208) is fixed on the surface of the filter screen (205), and threaded holes are provided on the surface of the side plate (208) and the monitoring shell (201). The side plate (208) and the monitoring shell (201) are detachably connected via the threaded holes using bolts.

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