Fire-fighting smoke exhaust device

Abstract

The utility model relates to the technical field of smoke exhaust devices, and discloses a fire-fighting smoke exhaust device which comprises two smoke exhaust channels, a connecting cross rod is welded between the adjacent sides of the two smoke exhaust channels, a safety lifting mechanism is arranged on the smoke exhaust channels, and the safety lifting mechanism is connected with the smoke exhaust channels. And the safety lifting mechanism comprises an end frame body, a positioning bolt and an inclined plate, a square groove is formed in the outer surface of the inclined plate, and a square inner frame is fixedly installed on the inner wall of the square groove. By means of the design of the rotating blocking piece, the inner cavity of the square inner frame can be sealed, the problem that floating impurities in air can enter the inner cavity of the smoke exhaust channel in the idle process is avoided, it is guaranteed that the structure can normally operate when dangerous cases happen, safety is improved, and by means of the design of the connecting relation between the fixed shaft and the rotating blocking piece, the structure is simple and convenient to operate. And after the rotating blocking piece rotates by a certain angle, closing of the inner cavity of the square inner frame can be relieved, and smoke exhaust work can be conveniently carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of smoke exhaust devices, and specifically to a fire-fighting smoke exhaust device. Background Art

[0002] When a fire occurs indoors, a lot of thick smoke will be produced indoors. Since the burning items are mostly plastics, cloth and other items commonly found indoors, the thick smoke produced by the burning contains more toxic substances. If the thick smoke cannot be discharged in time, people will inhale a large amount of thick smoke and suffer dangerous situations such as suffocation. Therefore, a smoke exhaust device needs to be installed on the building.

[0003] A Chinese patent discloses a fire-fighting ventilation and smoke exhaust device, with the publication number CN212457266U. The technical solution disclosed in the patent document is as follows: it includes a protective shell, the inner wall of the protective shell is evenly distributed with through holes, a first fan is installed on one side inside the protective shell, a second fan is installed on the side inside the protective shell away from the first fan, a fire-fighting pipe shell is provided on one side outside the protective shell, a connecting mechanism is provided at the connecting position of the fire-fighting pipe shell and the protective shell, and two symmetrically distributed first fixing blocks are fixedly connected to the side of the fire-fighting pipe shell away from the protective shell.

[0004] In order to solve the problem of lack of purification device inside the ventilation duct, the existing technology adopts the method of designing a purification mechanism to deal with it. However, the duct cannot be sealed during the idle process. During the idle process, floating impurities in the air will enter the inside of the duct, which can easily cause blockage inside the duct, posing a major safety hazard. Utility Model Content

[0005] The utility model aims to provide a fire smoke exhaust device to solve the problem in the prior art that floating impurities in the air may enter the interior of the pipeline.

[0006] The utility model provides the following technical solutions: a fire-fighting smoke exhaust device comprises a smoke exhaust channel, the number of which is set to two, a connecting cross bar is welded between the two adjacent sides of the smoke exhaust channels, a safety lifting mechanism is arranged on the smoke exhaust channel, the safety lifting mechanism comprises an end frame, a positioning bolt and an inclined plate, a square groove is opened on the outer surface of the inclined plate, a square inner frame is fixedly installed on the inner wall of the square groove, a fixed shaft is fixedly installed between the top and the bottom of the inner wall of the square inner frame, a rotating baffle is rotatably connected to the outer wall of the fixed shaft, a fixed arm is fixedly installed on the side of the square groove, an elastic rope is fixedly connected on the side of the fixed arm close to the rotating baffle, and an end of the elastic rope away from the fixed arm is fixedly connected to the outer wall of the rotating baffle, and the rotating baffle movably closes the inner cavity of the square inner frame to block the entry of impurities such as dust, and facilitates the exhaust work at the same time.

[0007] As a preferred embodiment of the above technical solution, a plug-in frame is fixedly connected to one side of the end frame close to the smoke exhaust channel, and the plug-in frame is movably inserted in the inner cavity of the smoke exhaust channel. The positioning bolt is threadedly connected to the outer wall of the smoke exhaust channel. The end frame allows the inclined plate to be inclined to avoid the problem of dust accumulation.

[0008] As a preferred embodiment of the above technical solution, the threaded end of the positioning bolt is movably connected to the outer wall of the plug-in frame, and the inclined plate is fixedly connected to the side of the end frame away from the smoke exhaust channel. The design of the positioning bolt makes it easy for users to disassemble and assemble the inclined plate as a whole.

[0009] As a preferred embodiment of the above technical solution, the safety enhancement mechanism also includes an exhaust fan and a support rod. The air inlet end of the exhaust fan is fixedly connected to alloy tube 1, and the air outlet end of the exhaust fan is fixedly connected to alloy tube 2. The power source of the exhaust fan is arranged on the outside of the pipeline to ensure that the exhaust fan can operate safely.

[0010] As a preferred embodiment of the above technical solution, the left side of the alloy tube one is fixedly connected to the right side of the smoke exhaust channel located on the left side, and the right side of the alloy tube two is fixedly connected to the left side of the smoke exhaust channel located on the right side.

[0011] As a preferred embodiment of the above technical solution, the support rod is fixedly installed on one side adjacent to the two smoke exhaust channels, and a support frame is fixedly installed on one side adjacent to the two support rods. A hollow ring is fixedly installed between the two sides adjacent to the support frames. The hollow ring can make the nozzles evenly distributed on the outside of the exhaust fan, thereby improving the uniformity of the spray cooling.

[0012] As a preferred embodiment of the above technical solution, a nozzle is fixedly connected to the inner wall of the hollow ring, a solenoid valve is fixedly connected to the left side of the hollow ring, a storage tank body is fixedly connected to the left side of the solenoid valve, the storage tank body is used to store cooling medium, and the solenoid valve can control the opening and closing of the inner cavity of the storage tank body.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model can seal the inner cavity of the square inner frame through the design of a rotating baffle, thereby preventing floating impurities in the air from entering the inner cavity of the smoke exhaust channel during idleness, ensuring that the structure can operate normally when a dangerous situation occurs, thereby improving safety, and through the connection relationship design between the fixed shaft and the rotating baffle, the sealing of the inner cavity of the square inner frame can be released after the rotating baffle is rotated by a certain angle, thereby facilitating the smoke exhaust work, and through the design of the elastic rope, elastic deformation is generated when the rotating baffle is rotated by a certain angle, and after the smoke exhaust work is completed, the rotating baffle can be pulled to reset and the inner cavity of the square inner frame can be re-sealed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the separation structure of the smoke exhaust channel and the end frame of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the inclined plate of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the square inner frame of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the hollow ring of the utility model.

[0020] In the figure: 1. smoke exhaust channel; 11. connecting cross bar; 2. safety improvement mechanism; 21. end frame; 22. plug-in frame; 23. positioning bolt; 24. inclined plate; 241. square groove; 242. square inner frame; 243. fixed shaft; 244. rotating baffle; 245. fixed arm; 246. elastic rope; 25. exhaust fan; 251. alloy tube one; 252. alloy tube two; 253. bracket rod; 254. support frame; 255. hollow ring; 256. nozzle; 257. storage tank; 258. solenoid valve. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] like Figure 1 , Figure 3 and Figure 4As shown, the utility model provides a technical solution: a fire smoke exhaust device, including a smoke exhaust channel 1, the number of the smoke exhaust channels 1 is set to two, a connecting cross bar 11 is welded between the adjacent sides of the two smoke exhaust channels 1, a safety lifting mechanism 2 is arranged on the smoke exhaust channel 1, the safety lifting mechanism 2 includes an end frame 21, a positioning bolt 23 and an inclined plate 24, a square groove 241 is opened on the outer surface of the inclined plate 24, a square inner frame 242 is fixedly installed on the inner wall of the square groove 241, a fixed shaft 243 is fixedly installed between the top and the bottom of the inner wall of the square inner frame 242, a rotating baffle 244 is rotatably connected to the outer wall of the fixed shaft 243, a fixed arm 245 is fixedly installed on the side of the square groove 241, and the fixed arm 24 An elastic rope 246 is fixedly connected to one side close to the rotating baffle 244, and one end of the elastic rope 246 away from the fixed arm 245 is fixedly connected to the outer wall of the rotating baffle 244. The rotating baffle 244 is used to seal the inner cavity of the square inner frame 242 when idle, isolate floating impurities in the air, and ensure that the structure can operate normally when a dangerous situation occurs. Through the connection relationship design between the fixed shaft 243 and the rotating baffle 244, the rotating baffle 244 can be rotated to a certain angle to facilitate the smoke exhaust work. The elastic rope 246 can produce elastic deformation when the rotating baffle 244 rotates to a certain angle. After the smoke exhaust work is completed, the rotating baffle 244 can be pulled to reset to re-close the inner cavity of the square inner frame 242.

[0023] As an implementation method in this embodiment, Figure 2 As shown, a plug-in frame 22 is fixedly connected to a side of the end frame 21 close to the smoke exhaust channel 1, and the plug-in frame 22 is movably plugged into the inner cavity of the smoke exhaust channel 1. A positioning bolt 23 is threadedly connected to the outer wall of the smoke exhaust channel 1, and a threaded end of the positioning bolt 23 is movably connected to the outer wall of the plug-in frame 22. A tilting plate 24 is fixedly connected to a side of the end frame 21 away from the smoke exhaust channel 1. Through the cooperation of the plug-in frame 22 and the positioning bolt 23, the end frame 21 is disassembled and connected to the side of the smoke exhaust channel 1, which is convenient for users to disassemble and maintain the tilting plate 24 as a whole. The shape design of the end frame 21 makes the tilting plate 24 inclined to avoid the problem of dust accumulation on the side of the tilting plate 24.

[0024] As an implementation method in this embodiment, Figure 1 and Figure 5As shown, the safety enhancement mechanism 2 also includes an exhaust fan 25 and a support rod 253. The air inlet end of the exhaust fan 25 is fixedly connected to an alloy tube 1 251, and the air outlet end of the exhaust fan 25 is fixedly connected to an alloy tube 252. The left side of the alloy tube 1 251 is fixedly connected to the right side of the smoke exhaust channel 1 located on the left, and the right side of the alloy tube 252 is fixedly connected to the left side of the smoke exhaust channel 1 located on the right. The support rod 253 is fixedly installed on one side adjacent to the two smoke exhaust channels 1. The two support rods 253 are fixedly installed on one side adjacent to each other with a support frame 254. A hollow ring 255 is fixedly installed between the two adjacent sides of the support frames 254. The hollow ring 255 is fixedly installed between the two adjacent sides of the support frames 254. A nozzle 256 is fixedly connected to the inner wall of 55, a solenoid valve 258 is fixedly connected to the left side of the hollow ring 255, and a storage tank 257 is fixedly connected to the left side of the solenoid valve 258. Through the design of the exhaust fan 25, the driving source of the exhaust fan 25 can be set outside the pipeline to avoid the problem that the high-temperature gas inside the pipeline will cause damage to the exhaust fan 25. During production, the storage tank 257 stores pressurized cooling medium in the inner cavity. The cooling medium can be set to dry ice and other materials. The solenoid valve 258 is controlled to open, so that the cooling medium can be output from the nozzle 256 to cool the exhaust fan 25, thereby ensuring that the exhaust fan 25 can continue to operate for a long time.

[0025] Working principle: the exhaust fan 25 is controlled to absorb gas from the left inclined plate 24 and exhaust gas from the right inclined plate 24 to realize the smoke exhaust function. The rotating baffle 244 is used to seal the inner cavity of the square inner frame 242 when idle. When the exhaust fan 25 is working, it drives the gas to generate thrust, and the thrust causes the rotating baffle 244 to rotate a certain angle to facilitate the smoke exhaust work.

[0026] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A fire smoke exhaust device, comprising a smoke exhaust channel (1), characterized in that: The number of the smoke exhaust channels (1) is set to two, and a connecting cross bar (11) is welded between the adjacent sides of the two smoke exhaust channels (1). The smoke exhaust channels (1) are provided with a safety enhancement mechanism (2), and the safety enhancement mechanism (2) comprises an end frame (21), a positioning bolt (23) and an inclined plate (24). A square groove (241) is provided on the outer surface of the inclined plate (24), and a square inner frame (242) is fixedly installed on the inner wall of the square groove (241). A fixed shaft (243) is fixedly installed between the top and bottom of the inner wall of the square inner frame (242); a rotating baffle (244) is rotatably connected to the outer wall of the fixed shaft (243); a fixed arm (245) is fixedly installed on the side of the square groove (241); a side of the fixed arm (245) close to the rotating baffle (244) is fixedly connected to an elastic rope (246); and one end of the elastic rope (246) away from the fixed arm (245) is fixedly connected to the outer wall of the rotating baffle (244).

2. A fire smoke exhaust device according to claim 1, characterized in that: A plug-in frame (22) is fixedly connected to one side of the end frame (21) close to the smoke exhaust channel (1); the plug-in frame (22) is movably plugged into the inner cavity of the smoke exhaust channel (1); and the positioning bolt (23) is threadedly connected to the outer wall of the smoke exhaust channel (1).

3. A fire smoke exhaust device according to claim 2, characterized in that: The threaded end of the positioning bolt (23) is movably connected to the outer wall of the plug-in frame (22), and the inclined plate (24) is fixedly connected to the side of the end frame (21) away from the smoke exhaust channel (1).

4. A fire smoke exhaust device according to claim 1, characterized in that: The safety enhancement mechanism (2) further comprises an exhaust fan (25) and a support rod (253); the air inlet end of the exhaust fan (25) is fixedly connected to alloy tube one (251); and the air outlet end of the exhaust fan (25) is fixedly connected to alloy tube two (252).

5. A fire smoke exhaust device according to claim 4, characterized in that: The left side of the alloy tube 1 (251) is fixedly connected to the right side of the smoke exhaust channel (1) located on the left side, and the right side of the alloy tube 2 (252) is fixedly connected to the left side of the smoke exhaust channel (1) located on the right side.

6. A fire smoke exhaust device according to claim 4, characterized in that: The support rod (253) is fixedly mounted on one side adjacent to the two smoke exhaust passages (1); a support frame (254) is fixedly mounted on one side adjacent to the two support rods (253); and a hollow ring (255) is fixedly mounted between the two sides adjacent to the two support frames (254).

7. A fire smoke exhaust device according to claim 6, characterized in that: A nozzle (256) is fixedly connected to the inner wall of the hollow ring (255), a solenoid valve (258) is fixedly connected to the left side of the hollow ring (255), and a storage tank (257) is fixedly connected to the left side of the solenoid valve (258).

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