Fireproof smoke exhaust valve for fire fighting

Abstract

The fireproof smoke exhaust valve comprises a fixing pipe, an adjusting mechanism is arranged in the fixing pipe, the adjusting mechanism comprises a pipeline fixedly connected to the side face of the fixing pipe, and a through opening aligned with the pipeline is formed between the inner wall and the outer wall of the side face of the pipeline. A movable frame is connected between the top inner wall and the bottom inner wall of the fixed pipe in a sliding mode, and openings aligned with the pipeline are formed in the top end, the bottom end and the two face ends of the movable frame. The pipeline is arranged in the building through the movable frame, the rooms are communicated through the fixing pipes, the motor is started, the motor drives the second rotating shaft to rotate, the second rotating shaft drives the second gear to rotate, the second gear drives the first gear to rotate, the first gear drives the first rotating shaft to rotate, and the first rotating shaft drives the rotating plate to rotate. The rotating plate drives the moving plate to move, the moving plate drives the through groove to move and align with the detection groove, and when smoke is generated in a room, the smoke alarm body is triggered by the smoke.

Description

Technical Field

[0001] This utility model relates to the field of fireproof smoke exhaust valve technology, and in particular to a fireproof smoke exhaust valve for fire protection. Background Technology

[0002] A fire-resistant smoke exhaust valve is an important component of a building fire safety system. Its main function is to control the flow of smoke during a fire, prevent the fire from spreading, and provide favorable conditions for personnel evacuation and fire rescue.

[0003] A search revealed a utility model patent with application number 201920443481.1, entitled "A Fire-fighting Smoke Exhaust Valve for Safe Passages." This patented device utilizes an activated carbon filter to filter smoke, effectively adsorbing dust and removing odors from the smoke, thus purifying the smoke and protecting the environment. In use, the user slides a slider, which, via a connecting rod, rotates a movable plate 45 degrees behind a fixed plate. When smoke enters the housing, a smoke detector detects it and transmits the information to a PLC controller, which then activates a ventilation fan to extract the smoke. The activated carbon filter further filters the smoke, adsorbing dust and removing odors, thus purifying the smoke and protecting the environment.

[0004] However, this patented device may cause combustibles in the smoke to spread to other places due to the airflow expelling the combustibles, affecting the safety of the device when exhausting smoke. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a fireproof smoke exhaust valve for fire protection.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A fire-resistant smoke exhaust valve for fire protection includes a fixed pipe with an adjustment mechanism inside. The adjustment mechanism includes a pipe fixedly connected to the side of the fixed pipe. An opening aligned with the pipe is provided between the inner and outer walls of the pipe. A movable frame is slidably connected between the top and bottom inner walls of the fixed pipe. An opening aligned with the pipe is provided at one end of the top and bottom and one end of both sides of the movable frame.

[0008] Preferably, the top inner wall and the bottom inner wall of the movable frame are fixedly connected with staggered inclined plates, and the top inner wall of the movable frame is fixedly connected with a temperature sensor body located between the two inclined plates.

[0009] Preferably, a transmission groove is provided inside the top of the fixed tube, and at least two rotating shafts are rotatably connected between the top inner wall of the transmission groove and the top inner wall of the fixed tube. A rotating plate is fixedly connected to the bottom of the rotating shaft, and the bottom of the rotating plate is rotatably connected to the bottom inner wall of the fixed tube. Stops aligned with the rotating plate are evenly fixedly connected to the top inner wall and the bottom inner wall of the fixed tube.

[0010] Preferably, a gear 1 is fixedly connected to the circumferential side of the rotating shaft 1, and the two gears 1 mesh with each other. A motor is fixedly connected to the top, and the output shaft of the motor is fixedly connected to a rotating shaft 2. The other end of the rotating shaft 2 is rotatably connected to the bottom inner wall of the transmission groove, and a gear 2 that meshes with the gear 1 is fixedly connected to the circumferential side of the rotating shaft 2.

[0011] Preferably, the top and bottom sides of the movable frame are fixedly connected to arc-shaped blocks aligned with the rotating plate, the top and bottom inner walls of the fixed tube are provided with movable grooves, the top and bottom of the movable frame are fixedly connected to movable blocks aligned with the movable grooves, one side of the movable block is slidably connected to one inner wall of the movable groove, and a spring is fixedly connected between the side of the movable block and the side inner wall of the movable groove.

[0012] Preferably, test slots are provided on both inner walls of the fixed tube, and a smoke alarm body is fixedly connected to the inner side wall of the test slot. Movable plates are slidably connected between the top and bottom inner walls of the fixed tube, and through slots are provided between the two sides of the movable plates.

[0013] Preferably, the bottom of the fixed tube is provided with a moving groove aligned with the moving plate, the bottom of the moving plate is fixedly connected with a moving block aligned with the moving groove, the bottom of the moving block is slidably connected to the bottom inner wall of the moving groove, and a spring is fixedly connected between the side of the moving block and the side inner wall of the moving groove.

[0014] Compared with the prior art, this utility model provides a fireproof smoke exhaust valve for fire protection, which has the following beneficial effects:

[0015] The movable frame is used to install the pipes within the building, and multiple fixed pipes connect the various rooms. When the motor is started, it drives a second rotating shaft, which in turn drives a second gear, which in turn drives a first gear. The first gear then drives a first rotating shaft, which in turn drives a rotating plate. This rotating plate moves a movable plate, which in turn moves a through-slot to align with the detection slot. When smoke is generated in the room, it triggers the smoke alarm, simultaneously activating the motor. This motor drives the rotating plate, which in turn compresses and moves an arc-shaped block. The arc-shaped block moves the movable frame, causing the opening to extend into the pipe. Simultaneously, an external fan is activated at one end of the pipe, drawing smoke airflow. The smoke airflow flows along multiple inclined plates and then enters the pipe through the opening, facilitating efficient smoke extraction. The device extends the path of smoke during smoke emission to prevent combustibles from spreading to other areas and affecting the safety of smoke exhaust. When the smoke flow is still too high after passing through multiple inclined plates, it triggers the temperature sensor, which starts the motor. The motor drives the rotating plate to close the fixed pipe, and at the same time, a spring pushes the movable block to move. The movable block then moves the movable frame to reset. This helps the device close the fixed pipe when the indoor smoke temperature is too high, preventing the fire from spreading to other areas and improving the safety and stability of the device. In addition, the movable frame re-seals each fixed pipe on the pipeline, which helps prevent the smoke flow from getting stuck in the fixed pipe when the external fan guides the smoke flow, thus affecting the smoothness of the smoke exhaust. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a fire-fighting smoke exhaust valve proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of a fire-fighting smoke exhaust valve proposed in this utility model;

[0018] Figure 3 This is a partial structural diagram of a fire-resistant smoke exhaust valve for fire protection proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the transmission groove structure of a fire-fighting smoke exhaust valve proposed in this utility model.

[0020] In the diagram: 1-Fixed pipe, 2-Rotating plate, 3-Stop block, 4-Moving plate, 5-Transmission groove, 6-Motor, 7-Arc block, 8-Movable groove, 9-Movable block, 10-Spring 1, 11-Pipe, 12-Opening, 13-Temperature sensor body, 14-Inclined plate, 15-Spring 2, 16-Through groove, 17-Movable block, 18-Gear 1, 19-Rotating shaft 1, 20-Rotating shaft 2, 21-Gear 2, 22-Movable frame, 23-Movable groove, 24-Smoke alarm body. Detailed Implementation

[0021] Example 1, referring to Figure 1-4 A fire-resistant smoke exhaust valve for fire protection includes a fixed pipe 1. An adjustment mechanism is provided inside the fixed pipe 1. The adjustment mechanism includes a pipe 11 fixedly connected to the side of the fixed pipe 1. An opening aligned with the pipe 11 is provided between the inner and outer walls of the side of the pipe 11. A movable frame 22 is slidably connected between the top and bottom inner walls of the fixed pipe 1. An opening 12 aligned with the pipe 11 is provided at one end of the top and bottom and one end of both sides of the movable frame 22.

[0022] In this invention, the top inner wall and bottom inner wall of the movable frame 22 are fixedly connected with staggered inclined plates 14, and the top inner wall of the movable frame 22 is fixedly connected with a temperature sensor body 13 located between the two inclined plates 14.

[0023] A transmission groove 5 is provided inside the top of the fixed tube 1. At least two rotating shafts 19 are rotatably connected between the top inner wall of the transmission groove 5 and the top inner wall of the fixed tube 1. A rotating plate 2 is fixedly connected to the bottom of the rotating shaft 19. The bottom of the rotating plate 2 is rotatably connected to the bottom inner wall of the fixed tube 1. Stops 3 aligned with the rotating plate 2 are evenly fixedly connected to the top inner wall and the bottom inner wall of the fixed tube 1.

[0024] Gear 18 is fixedly connected to the circumferential side of the rotating shaft 19, and the two gears 18 mesh with each other. Motor 6 is fixedly connected to the top. The output shaft of motor 6 is fixedly connected to the rotating shaft 20. The other end of the rotating shaft 20 is rotatably connected to the bottom inner wall of the transmission groove 5. Gear 21 that meshes with gear 18 is fixedly connected to the circumferential side of the rotating shaft 20.

[0025] The top and bottom sides of the movable frame 22 are fixedly connected with arc-shaped blocks 7 aligned with the rotating plate 2. The top and bottom inner walls of the fixed tube 1 are provided with movable grooves 8. The top and bottom sides of the movable frame 22 are fixedly connected with movable blocks 9 aligned with the movable grooves 8. One side of the movable block 9 is slidably connected to one side of the inner wall of the movable groove 8. A spring 10 is fixedly connected between the side of the movable block 9 and the side of the inner wall of the movable groove 8.

[0026] Test slots are provided on both inner walls of the fixed tube 1. The smoke alarm body 24 is fixedly connected to the inner wall of the side of the test slot. Movable plates 4 are slidably connected between the top inner wall and the bottom inner wall of the fixed tube 1. Through slots 16 are provided between the two sides of the movable plates 4.

[0027] The bottom of the fixed tube 1 is provided with a moving groove 23 aligned with the moving plate 4. The bottom of the moving plate 4 is fixedly connected with a moving block 17 aligned with the moving groove 23. The bottom of the moving block 17 is slidably connected to the bottom inner wall of the moving groove 23. A spring 15 is fixedly connected between the side of the moving block 17 and the side inner wall of the moving groove 23.

[0028] Working principle: Pipe 11 is installed in the building, and multiple fixed pipes 1 connect the various rooms. Motor 6 is started, driving shaft 20 to rotate. Shaft 20 drives gear 21 to rotate, gear 21 drives gear 18 to rotate, gear 18 drives shaft 19 to rotate, shaft 19 drives rotating plate 2 to rotate, rotating plate 2 drives moving plate 4 to move, and moving plate 4 drives through groove 16 to move and align with the detection groove. When smoke is generated in the room, the smoke triggers the smoke alarm body 24, simultaneously starting motor 6. Motor 6 drives rotating plate 2 to rotate, rotating plate 2 compresses and moves arc block 7, arc block 7 moves movable frame 22, movable frame 22 causes opening 12 to extend into pipe 11. Simultaneously, an external fan is started at one end of pipe 11, causing the smoke airflow to flow. The smoke airflow flows along multiple inclined plates 14 and enters the pipe through opening 12. In channel 11, the device extends the path of smoke flow when exhausting smoke, preventing combustibles in the smoke from being discharged with the airflow and spreading to other places, thus affecting the safety of the device during smoke exhaust. When the temperature of the smoke airflow is still too high after passing through multiple inclined plates 14, the temperature sensor body 13 is triggered. The temperature sensor body 13 starts the motor 6, which drives the rotating plate 2 to close the fixed pipe 1. At the same time, the spring 10 pushes the movable block 9 to move, and the movable block 9 drives the movable frame 22 to move and reset. This helps the device close the fixed pipe 1 when the indoor smoke temperature is too high, preventing the fire from spreading to other places and improving the safety and stability of the device operation. At the same time, the movable frame 22 re-seals each fixed pipe 1 on the channel 11, which helps prevent the smoke airflow from staying in the fixed pipe 1 when the external fan guides the smoke flow, thus affecting the smoothness of the device's smoke exhaust.

[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fire-resistant smoke exhaust valve for fire protection, comprising a fixed pipe (1), characterized in that, The fixed tube (1) is equipped with an adjustment mechanism inside. The adjustment mechanism includes a pipe (11) fixedly connected to the side of the fixed tube (1). An opening aligned with the pipe (11) is provided between the inner and outer walls of the side of the pipe (11). A movable frame (22) is slidably connected between the top inner wall and the bottom inner wall of the fixed tube (1). An opening (12) is provided at the top and bottom of the movable frame (22) near the pipe (11) and at both sides of the movable frame (22) near the pipe (11). An alternating inclined plate (14) is fixedly connected to the top inner wall and the bottom inner wall of the movable frame (22). The top inner wall of the movable frame (22) is fixedly connected to a temperature sensor body (13) located between two inclined plates (14). The top and bottom sides of the movable frame (22) are fixedly connected to arc-shaped blocks (7) aligned with the rotating plate (2). The top and bottom inner walls of the fixed tube (1) are provided with movable grooves (8). The top and bottom sides of the movable frame (22) are fixedly connected to movable blocks (9) aligned with the movable grooves (8). One side of the movable block (9) is slidably connected to one side inner wall of the movable groove (8). A spring (10) is fixedly connected between the side of the movable block (9) and the side inner wall of the movable groove (8).

2. A fire-fighting smoke exhaust valve according to claim 1, characterized in that, The top of the fixed tube (1) is provided with a transmission groove (5). At least two rotating shafts (19) are rotatably connected between the top inner wall of the transmission groove (5) and the top inner wall of the fixed tube (1). A rotating plate (2) is fixedly connected to the bottom of the rotating shaft (19). The bottom of the rotating plate (2) is rotatably connected to the bottom inner wall of the fixed tube (1). The top inner wall and bottom inner wall of the fixed tube (1) are uniformly fixedly connected with blocks (3) aligned with the rotating plate (2).

3. A fire-fighting smoke exhaust valve according to claim 2, characterized in that, Gear 1 (18) is fixedly connected to the circumferential side of the rotating shaft 1 (19), and the two gears 1 (18) mesh with each other. A motor (6) is fixedly connected to the top. The output shaft of the motor (6) is fixedly connected to the rotating shaft 2 (20). The other end of the rotating shaft 2 (20) is rotatably connected to the bottom inner wall of the transmission groove (5). Gear 2 (21) that meshes with gear 1 (18) is fixedly connected to the circumferential side of the rotating shaft 2 (20).

4. A fire-fighting smoke exhaust valve according to claim 3, characterized in that, Test slots are provided on both inner walls of the fixed tube (1). A smoke alarm body (24) is fixedly connected to the inner wall of the side of the test slot. A movable plate (4) is slidably connected between the top inner wall and the bottom inner wall of the fixed tube (1). A through slot (16) is provided between the two sides of the movable plate (4).

5. A fire-fighting smoke exhaust valve according to claim 4, characterized in that, The bottom of the fixed tube (1) is provided with a moving groove (23) aligned with the moving plate (4). The bottom of the moving plate (4) is fixedly connected with a moving block (17) aligned with the moving groove (23). The bottom of the moving block (17) is slidably connected to the bottom inner wall of the moving groove (23). A spring (15) is fixedly connected between the side of the moving block (17) and the side inner wall of the moving groove (23).

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