Fireproof smoke exhaust valve for high-rise building fire fighting

Abstract

The utility model relates to a fire-proof smoke exhaust valve for high-rise building fire protection, which is applied to the field of high-rise buildings and comprises a mounting plate, the upper end of the mounting plate is fixedly connected with a circular-tube-shaped mounting cover, a motor is fixedly mounted on the outer ring of the mounting cover, and two rotating shafts are rotatably connected to an inner cavity of the mounting cover. The output end of the motor penetrates into the mounting cover and is fixedly connected with one rotating shaft, the ends, away from each other, of the two rotating shafts are fixedly connected with baffles, the outer rings of the rotating shafts are fixedly sleeved with gears, the two gears are meshed, the upper end of the mounting cover is fixedly connected with an annular pipe, and the upper end of the mounting cover is further fixedly connected with a circular-pipe-shaped flue. By the adoption of the structures such as the installation cover and the like, a fan blade structure does not need to be used in the using process, the angle of the baffle is adjusted, a valve channel is directly exposed, the smoke exhaust speed of the smoke exhaust valve is increased, and the smoke exhaust effect of the smoke exhaust valve is improved.

Description

Technical Field

[0001] The utility model relates to a fireproof smoke exhaust valve, in particular to a fireproof smoke exhaust valve for high-rise building fire protection which is applied in the field of high-rise buildings. Background Art

[0002] With the rapid development of my country's economy, there are more and more high-rise buildings such as hotels, office buildings, commercial and residential buildings. Once a fire occurs in a high-rise building, a large amount of toxic gas will be produced, which will spread rapidly under the chimney effect, and it is easy to cause people to suffocate and poison and lose their ability to move. This is the main factor in the high fire mortality rate.

[0003] Fire smoke exhaust dampers installed in ventilation openings, air conditioning system pipes and shafts of various buildings will play an effective role in fire prevention and smoke exhaust, greatly improving the survival rate of personnel. However, existing smoke exhaust valves generally adopt a fan blade structure. When high-temperature smoke waves and sparks enter the valve channel, the internal fan blades are easily deformed, resulting in the fan blades not opening smoothly, thereby affecting the smoke exhaust speed and effect of the smoke exhaust valve. Utility Model Content

[0004] In view of the above-mentioned prior art, the technical problem to be solved by the utility model is that the existing smoke exhaust valve usually uses a fan blade structure. After high-temperature smoke waves and sparks enter the valve channel, the internal fan blades are easily deformed, resulting in the fan blades opening unsmoothly, thereby affecting the smoke exhaust speed and effect of the smoke exhaust valve.

[0005] In order to solve the above problems, the utility model provides a fire smoke exhaust valve for high-rise building fire protection, including a mounting plate, a cylindrical mounting cover is fixedly connected to the upper end of the mounting plate, a fixed cover is fixedly installed on the outer ring of the mounting cover, a motor is fixedly connected to the outer end of the fixed cover, a circuit board is inserted in the fixed cover, a controller is fixedly connected to the upper end of the circuit board, a temperature sensor is fixedly connected to the inner bottom wall of the fixed cover, the temperature sensor and the controller are both electrically connected to the circuit board, the controller is electrically connected to the motor, the inner cavity of the mounting cover is rotatably connected to two rotating shafts, the output end of the motor passes through the fixed cover and the mounting cover in turn and is fixedly connected to one of the rotating shafts, the ends of the two rotating shafts that are away from each other are fixedly connected to baffles, the outer ring of the rotating shaft is fixedly sleeved with gears, the two gears are meshed, and the upper end of the mounting cover is fixedly connected to an annular tube.

[0006] In the above-mentioned fire-fighting smoke exhaust valve for high-rise buildings, there is no need to use a fan blade structure. By adjusting the angle of the baffle, the valve channel is directly exposed, thereby improving the smoke exhaust speed and effect of the smoke exhaust valve.

[0007] As a further improvement of the present application, the baffle is semicircular, and the two baffles are distributed in a mirror-symmetrical manner about the central axis of the mounting cover.

[0008] As a further improvement of the present application, the baffle is located at the upper end of the inner cavity of the mounting cover, the distance between the lower end of the baffle and the lower end of the mounting cover is greater than the radius of the baffle, and the radius of the baffle is smaller than the inner diameter of the mounting cover.

[0009] As another improvement of the present application, the baffle is located at the upper end of the inner cavity of the mounting cover, the distance between the lower end of the baffle and the lower end of the mounting cover is greater than the radius of the baffle, and the radius of the baffle is smaller than the inner diameter of the mounting cover.

[0010] As another improved supplement of the present application, the cross section of the exhaust window is fan-shaped, and a plurality of exhaust ports are provided on the surface of the exhaust window.

[0011] As another improvement of the present application, the motor is replaced by a hand-cranked assembly, which includes a fixing bar, the rear end of which is fixedly connected to the front end of the mounting plate.

[0012] As another improvement supplement to the present application, the upper and lower ends of the inner cavity of the fixed bar are rotatably connected with rotating rods, the rear end of the rotating rod at the upper end passes through the mounting cover and is fixedly connected to a rotating shaft, the front end of the rotating rod at the lower end passes through the fixed bar and is fixedly connected to a rocker arm, and the outer rings of the two rotating rods are commonly fixed with a pulley set.

[0013] To sum up, in actual application, the starting motor drives a shaft to rotate, thereby causing a gear to rotate, driving another gear meshing with it to rotate, so that the two baffles rotate toward the center of the mounting cover with the shaft as the center, exposing the valve channel, and the temperature sensor monitors the temperature of the valve in real time. When the valve temperature reaches 150°, the motor rotates in the opposite direction to close the two baffles, thereby completing the automatic closing of the valve, effectively preventing open flames from entering the room, and improving the practicality of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the mounting cover structure of the first embodiment of the present application;

[0015] Figure 2 This is a schematic diagram of the internal structure of the fixed cover of the first embodiment of this application

[0016] Figure 3 This is a schematic diagram of the baffle structure of the first embodiment of the present application;

[0017] Figure 4 This is a structural schematic diagram of the second implementation mode of the present application;

[0018] Figure 5 This is a schematic diagram of the flue structure of the second embodiment of the present application;

[0019] Figure 6 This is a structural schematic diagram of the third implementation mode of the present application;

[0020] Figure 7 This is a schematic diagram of the rotating rod structure of the third embodiment of the present application.

[0021] Description of the numbers in the figure:

[0022] 1 mounting plate, 2 mounting cover, 3 motor, 4 rotating shaft, 5 baffle, 6 gear, 7 annular pipe, 8 flue, 9 smoke outlet, 10 exhaust window, 11 hood, 12 rotating rod, 13 rocker, 14 pulley set, 15 fixing strip, 16 fixing cover, 17 controller, 18, temperature sensor, 19 circuit board. DETAILED DESCRIPTION

[0023] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0024] The first implementation method:

[0025] Figure 1 and Figure 2 Shown: a fire smoke exhaust damper for high-rise building fire protection, including a mounting plate 1, the upper end of the mounting plate 1 is fixedly connected with a cylindrical mounting cover 2, the outer ring of the mounting cover 2 is fixedly installed with a fixed cover 16, the outer end of the fixed cover 16 is fixedly connected with a motor 3, and technical personnel in this field can select a suitable model of the motor 3 according to actual needs, for example: Y2-63M1-2-0.18KW, a circuit board 19 is inserted in the fixed cover 16, the upper end of the circuit board 19 is fixedly connected with a controller 17, the inner bottom wall of the fixed cover 16 is fixedly connected with a temperature sensor 18, the temperature sensor 18 and the controller 17 are both electrically connected to the circuit board 19, the controller 17 is electrically connected to the motor 3, the rotation of the inner cavity of the mounting cover 2 is connected to two rotating shafts 4, the output end of the motor 3 passes through the fixed cover 16 and the mounting cover 2 in sequence and is fixedly connected to one of the rotating shafts 4, and the upper end of the mounting cover 2 is fixedly connected with an annular pipe 7.

[0026] Figure 3 It is shown that: the rotation of the inner cavity of the mounting cover 2 is connected to two rotating shafts 4, the output end of the motor 3 passes through the mounting cover 2 and is fixedly connected to one of the rotating shafts 4, the ends of the two rotating shafts 4 that are away from each other are fixedly connected with baffles 5, the outer ring of the rotating shaft 4 is fixedly sleeved with a gear 6, the two gears 6 are meshed, and the meshing gears 6 can drive the rotating shaft 4 to rotate in opposite directions at the same time, so that the two baffles 5 are rotated ninety degrees at the same time to expose the valve channel, the baffle 5 is semicircular, and the two baffles 5 are distributed in a mirror-symmetrical manner with the central axis of the mounting cover 2, the baffle 5 is located at the upper end of the inner cavity of the mounting cover 2, the distance between the lower end of the baffle 5 and the lower end of the mounting cover 2 is greater than the radius of the baffle 5, and the radius of the baffle 5 is smaller than the inner diameter of the mounting cover 2, so that the baffle 5 has enough space to rotate.

[0027] After a fire occurs, the motor 3 is started to drive a shaft 4 to rotate, thereby causing a gear 6 to rotate, driving another gear 6 meshing therewith to rotate, so that the two baffles 5 rotate toward the center of the mounting cover 2 with the shaft 4 as the center, exposing the valve channel. The temperature sensor 18 monitors the temperature of the valve in real time. When the valve temperature reaches 150°, the motor 3 rotates in the opposite direction to close the two baffles 5, thereby completing the automatic opening and closing of the valve, which is convenient for the staff to use.

[0028] The second implementation method:

[0029] Based on the first embodiment, this embodiment adds a flue 8, a smoke outlet 9, an exhaust window 10 and a hood 11, and the rest of the parts are consistent with the first embodiment.

[0030] Figure 4 and Figure 5 It is shown that: a circular tubular flue 8 is also fixedly connected to the upper end of the mounting cover 2, the annular tube 7 is located in the flue 8, two smoke outlets 9 are provided on the surface of the flue 8, and two exhaust windows 10 corresponding to the two smoke outlets 9 are fixedly connected to the outer surface of the flue 8, and a wind cap 11 is fixedly connected to the upper ends of the two exhaust windows 10. The cross-section of the exhaust window 10 is fan-shaped, and a plurality of exhaust ports are provided on the surface of the exhaust window 10. The smoke outlet 9 and the exhaust port can facilitate the rapid discharge of smoke, and the wind cap 11 can effectively prevent smoke from flowing back into the valve channel in windy weather.

[0031] When in use, smoke is quickly discharged through the smoke outlet 9, and at the same time, the wind cap 11 can effectively prevent smoke from flowing back into the valve channel, thereby improving smoke exhaust efficiency and facilitating use by staff.

[0032] The third implementation method:

[0033] This embodiment is based on the first embodiment, and the motor 3 is replaced by a hand-cranked assembly, and the rest of the parts are consistent with the first embodiment.

[0034] Figure 6 and Figure 7 It is shown that: the motor 3 is replaced with a hand-cranked assembly, which includes a fixing bar 15, the rear end of the fixing bar 15 is fixedly connected to the front end of the mounting plate 1, the upper and lower ends of the inner cavity of the fixing bar 15 are rotatably connected with rotating rods 12, the rear end of the rotating rod 12 at the upper end passes through the mounting cover 2 and is fixedly connected to a rotating shaft 4, the front end of the rotating rod 12 at the lower end passes through the fixing bar 15 and is fixedly connected with a rocker 13, the outer rings of the two rotating rods 12 are commonly fixedly sleeved with a pulley set 14, and the pulley set 14 can drive the two rotating rods 12 to rotate at the same time, thereby improving work efficiency.

[0035] When in use, rotating the rocker 13 drives the rotating rod 12 below to rotate, so that the pulley set 14 rotates, thereby driving the rotating rod 12 above to rotate, and then rotating a rotating shaft 4 to adjust the angle of the baffle 5, so as to facilitate the staff to operate the valve installed at a high place and effectively avoid accidental touch.

[0036] In view of current practical needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. 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 protection scope of this utility model.

Claims

1. A fire-proof smoke exhaust damper for high-rise building fire protection, comprising a mounting plate (1), characterized in that: The upper end of the mounting plate (1) is fixedly connected to a cylindrical mounting cover (2); a fixed cover (16) is fixedly installed on the outer ring of the mounting cover (2); the outer end of the fixed cover (16) is fixedly connected to a motor (3); a circuit board (19) is inserted into the fixed cover (16); the upper end of the circuit board (19) is fixedly connected to a controller (17); the inner bottom wall of the fixed cover (16) is fixedly connected to a temperature sensor (18); the temperature sensor (18) and the controller (17) are both electrically connected to the circuit board (19); the controller (17) is electrically connected to the motor (3); the inner cavity of the mounting cover (2) is rotatably connected to two rotating shafts (4); the output end of the motor (3) passes through the fixed cover (16) and the mounting cover (2) in sequence and is fixedly connected to one of the rotating shafts (4); The ends of the two rotating shafts (4) that are separated from each other are fixedly connected to a baffle (5), the outer ring of the rotating shaft (4) is fixedly sleeved with a gear (6), the two gears (6) are meshed, and the upper end of the mounting cover (2) is fixedly connected to an annular tube (7).

2. A fire-proof smoke exhaust valve for high-rise building fire protection according to claim 1, characterized in that: The baffle plate (5) is semicircular in shape, and the two baffle plates (5) are distributed in a mirror-symmetrical manner about the central axis of the mounting cover (2).

3. A fire-proof smoke exhaust valve for high-rise building fire protection according to claim 2, characterized in that: The baffle plate (5) is located at the upper end of the inner cavity of the mounting cover (2), the distance between the lower end of the baffle plate (5) and the lower end of the mounting cover (2) is greater than the radius of the baffle plate (5), and the radius of the baffle plate (5) is smaller than the inner diameter of the mounting cover (2).

4. A fire-proof smoke exhaust valve for high-rise building fire protection according to claim 1, characterized in that: The upper end of the mounting cover (2) is also fixedly connected to a circular tubular flue (8), the annular tube (7) is located in the flue (8), the surface of the flue (8) is provided with two smoke outlets (9), the outer surface of the flue (8) is fixedly connected to two exhaust windows (10) respectively corresponding to the two smoke outlets (9), and the upper ends of the two exhaust windows (10) are commonly fixedly connected to a hood (11).

5. A fire-proof smoke exhaust valve for high-rise building fire protection according to claim 4, characterized in that: The cross section of the exhaust window (10) is fan-shaped, and a plurality of exhaust ports are provided on the surface of the exhaust window (10).

6. A fire-proof smoke exhaust valve for high-rise building fire protection according to claim 4, characterized in that: The motor (3) is replaced with a hand-cranked assembly, wherein the hand-cranked assembly comprises a fixing bar (15), wherein the rear end of the fixing bar (15) is fixedly connected to the front end of the mounting plate (1).

7. A fire-proof smoke exhaust valve for high-rise building fire protection according to claim 6, characterized in that: The upper and lower ends of the inner cavity of the fixing bar (15) are rotatably connected to rotating rods (12); the rear end of the rotating rod (12) at the upper end passes through the mounting cover (2) and is fixedly connected to a rotating shaft (4); the front end of the rotating rod (12) at the lower end passes through the fixing bar (15) and is fixedly connected to a rocker (13); the outer rings of the two rotating rods (12) are commonly fixedly sleeved with a pulley set (14).

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