Fireproof smoke exhaust ventilation pipeline

Abstract

The utility model relates to the technical field of smoke exhaust pipelines, in particular to a fireproof smoke exhaust ventilating pipeline. Comprising a fireproof vertical filter pipe, a fireproof smoke inlet pipe, a fireproof smoke exhaust pipe, a cylinder body, a filter screen, a cleaning mechanism and a transmission assembly, the fireproof smoke inlet pipe and the fireproof smoke exhaust pipe are both communicated with the fireproof vertical filter pipe; the barrel is rotationally mounted on the inner side of the fireproof vertical filter pipe; the filter screen is arranged around the barrel; the cleaning mechanism comprises a movable plate, a sealing piston, a plurality of bristle mounting rods, a plurality of bristles and a power assembly; the transmission assembly is arranged on the inner side of the fireproof vertical filter pipe. By arranging the filter screen of the annular structure, the smoke filtering amount in unit time can be increased, the smoke discharging effect is guaranteed, self-cleaning of the filter screen can be achieved, the cleaning effect is good, dismounting work is not needed, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of smoke exhaust pipes, in particular to a fireproof smoke exhaust ventilation pipe. Background Art

[0002] Smoke exhaust ducts are important components in smoke exhaust systems. Smoke exhaust systems usually use mechanical pressurized air supply or natural ventilation to discharge smoke outside the building through smoke exhaust ducts, thereby reducing the risk of danger.

[0003] A Chinese patent with authorization announcement number CN218281015U discloses a high-airtightness fireproof smoke exhaust duct, including a duct body, a fixed rod is arranged inside the duct body and near the left edge, a filtering and cleaning mechanism is arranged on the surface of the fixed rod, and the filtering and cleaning mechanism includes an activated carbon filter and a brush, the activated carbon filter is fixedly connected to the surface of the fixed rod, the brush is fixedly connected to the radial side surface of the activated carbon filter, the outer surface of the brush is in contact with the inner surface of the duct body, the surface of the fixed rod and near the two end edges are fixedly connected to support rods, and the other end of the support rod is fixedly connected to a support block.

[0004] The above-mentioned disclosed patent still has the following technical defects: when cleaning the activated carbon filter, the operator needs to manually disassemble the filter, and after cleaning, it needs to be manually installed and reset, which is a cumbersome operation. Utility Model Content

[0005] The utility model aims to provide a fireproof smoke exhaust ventilation duct in view of the problems existing in the background technology.

[0006] The technical solution of the utility model is a fire-proof smoke exhaust ventilation duct, comprising:

[0007] A fireproof vertical filter pipe connected with a fireproof smoke inlet pipe and a fireproof smoke exhaust pipe;

[0008] The upper end of the cylinder is provided with an opening, the cylinder is rotatably mounted on the inner side of the fireproof vertical filter tube, and the periphery of the cylinder is provided with through holes;

[0009] The filter screen is arranged around the cylinder body;

[0010] The cleaning mechanism includes a movable plate, a sealing piston, a plurality of bristle mounting rods, a plurality of bristles and a power assembly. The movable plate is movably arranged on the inner side of the fireproof vertical filter tube, the sealing piston is arranged on the movable plate, a plurality of bristle mounting rods are vertically arranged on the movable plate along a circular array, a plurality of bristles are respectively mounted on the plurality of bristle mounting rods, and the power assembly is used to drive the movable plate to rise and fall;

[0011] The transmission assembly is arranged on the inner side of the fireproof vertical filter tube and is used to convert the lifting movement of the movable plate into the horizontal rotation of the cylinder.

[0012] Preferably, the transmission assembly includes a rack, a gear A, a transmission shaft A, a worm, a worm wheel, a transmission shaft B, a gear B, a gear C and a transmission shaft C, the rack is fixed on a bristle mounting rod on one side, the transmission shaft A is rotatably mounted on the inner side of the fireproof vertical filter tube, the worm is fixed on the transmission shaft A, a mounting plate is fixed on the inner side of the fireproof vertical filter tube, the cylinder is rotatably mounted on the mounting plate through the transmission shaft C, gear B is fixed on the transmission shaft C, and the transmission shaft B is also rotatably mounted on the mounting plate, gear C and the worm wheel are respectively fixed on the upper and lower ends of the transmission shaft B, wherein gear C is meshingly connected with gear B, and the worm wheel is meshingly connected with the worm.

[0013] Preferably, a smoke exhaust mechanism is installed on the fireproof smoke exhaust pipe, and the smoke exhaust mechanism includes a driving motor, a smoke exhaust fan, a rotating frame, a transmission shaft D, a transmission shaft E, a bevel gear A and a bevel gear B. A motor bracket is fixed to the outside of the fireproof smoke exhaust pipe, the driving motor is installed on the motor bracket, the transmission shaft D is connected to the output shaft of the driving motor, one end of the transmission shaft D is arranged on the inner side of the fireproof smoke exhaust pipe and connected to the bevel gear A, the rotating frame is fixed on the inner wall of the fireproof smoke exhaust pipe, the smoke exhaust fan is rotatably installed on the rotating frame through the transmission shaft E, the bevel gear B is fixed to the end of the transmission shaft E, and the bevel gear B is meshingly connected with the bevel gear A.

[0014] Preferably, the input end of the fireproof smoke inlet pipe is arranged obliquely, and the lowest end of the fireproof smoke inlet pipe is connected to the inner cavity of the fireproof vertical filter tube.

[0015] Preferably, transparent glass is provided on the fireproof vertical filter tube; a water inlet pipe is obliquely provided on the fireproof vertical filter tube, and a sealing cover is detachably connected to the water inlet pipe.

[0016] Preferably, a limiting ring is provided at the upper end of the cylinder, two sealing rings are spaced apart at the top end of the inner wall of the fireproof vertical filter tube, and the limiting ring is rotatably arranged between the two sealing rings.

[0017] Preferably, the power assembly includes a servo motor and a screw rod, a connecting frame is connected to the movable plate, the servo motor is installed on the fireproof vertical filter tube, the screw rod is connected to the output shaft of the servo motor, and the connecting frame is threadedly connected to the screw rod.

[0018] Compared with the prior art, the utility model has the following beneficial technical effects: the power component drives the connecting frame to move upward, thereby driving the movable plate and the sealing piston to move upward, pushing the water at the bottom end of the inner side of the fireproof vertical filter tube to the upper end of the inner side of the fireproof vertical filter tube, so that the water submerges the filter screen. In this process, the bristles move up and down and generate vertical friction with the surface of the filter screen, and the cylinder and the filter screen are driven to rotate under the cooperation of the transmission component. During the rotation, the surface of the filter screen generates horizontal friction with the bristles. In summary, the utility model can increase the filtering amount of smoke per unit time by setting a filter screen with an annular structure, ensure the smoke exhaust effect, and realize self-cleaning of the filter screen, with good cleaning effect, no disassembly work required, and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] Figure 2 It is a cross-sectional structural diagram of the utility model.

[0021] Figure 3 for Figure 2 Schematic diagram of the local enlarged structure at A.

[0022] Figure 4 for Figure 2 Schematic diagram of the local enlarged structure at point B.

[0023] Figure numerals: 1. fireproof vertical filter tube; 2. fireproof smoke inlet pipe; 3. fireproof smoke exhaust pipe; 4. cylinder; 5. filter screen; 6. water inlet pipe; 7. limit ring; 8. sealing ring; 9. brush mounting rod; 10. bristles; 11. movable plate; 12. sealing piston; 13. connecting frame; 14. transparent glass; 15. servo motor; 16. screw; 17. drive motor; 18. motor bracket; 19. rack; 20. gear A; 21. transmission shaft A; 22. worm; 23. worm wheel; 24. transmission shaft B; 25. gear B; 26. gear C; 27. transmission shaft C; 28. mounting plate; 29. ​​exhaust fan; 30. rotating frame; 31. transmission shaft D; 32. transmission shaft E; 33. bevel gear A; 34. bevel gear B. DETAILED DESCRIPTION

[0024] Embodiment 1

[0025] like Figure 1-Figure 3 As shown, a fireproof smoke exhaust ventilation duct proposed in this embodiment includes a fireproof vertical filter pipe 1, a fireproof smoke inlet pipe 2, a fireproof smoke exhaust pipe 3, a cylinder 4, a filter 5, a cleaning mechanism and a transmission component.

[0026] The fireproof smoke inlet pipe 2 and the fireproof smoke exhaust pipe 3 are both connected to the fireproof vertical filter tube 1. The input end of the fireproof smoke inlet pipe 2 is inclined, and the lowest end of the fireproof smoke inlet pipe 2 is connected to the inner cavity of the fireproof vertical filter tube 1. This arrangement ensures that when the water level rises, water will not flow out through the fireproof smoke inlet pipe 2.

[0027] An opening is provided at the upper end of the cylinder 4, and the cylinder 4 is rotatably installed on the inner side of the fireproof vertical filter tube 1. A through hole is provided on the periphery of the cylinder 4, and the filter screen 5 is arranged around the cylinder 4 for a circle; a limiting ring 7 is provided at the upper end of the cylinder 4, and two sealing rings 8 are arranged at intervals on the top end of the inner wall of the fireproof vertical filter tube 1, and the limiting ring 7 is rotatably arranged between the two sealing rings 8. By setting the limiting ring 7 and the two sealing rings 8, the sealing between the cylinder 4 and the inner wall of the fireproof vertical filter tube 1 can be improved.

[0028] The cleaning mechanism includes a movable plate 11, a sealing piston 12, a plurality of bristle mounting rods 9, a plurality of bristles 10 and a power assembly. The movable plate 11 is movably arranged on the inner side of the fireproof vertical filter tube 1. The sealing piston 12 is arranged on the movable plate 11. A plurality of bristle mounting rods 9 are vertically arranged on the movable plate 11 along a circular array. A plurality of bristles 10 are respectively installed on the plurality of bristle mounting rods 9. The power assembly is used to drive the movable plate 11 to rise and fall. The power assembly includes a servo motor 15 and a screw rod 16. A connecting frame 13 is connected to the movable plate 11. The servo motor 15 is installed on the fireproof vertical filter tube 1. The screw rod 16 is connected to the output shaft of the servo motor 15, and the connecting frame 13 is threadedly connected to the screw rod 16. The servo motor 15 drives the screw rod 16 to rotate. The rotation direction of the screw rod 16 can be adjusted to thereby adjust the movement direction of the connecting frame 13. The connecting frame 13 drives the movable plate 11 to move.

[0029] The transmission assembly is arranged on the inner side of the fireproof vertical filter tube 1, and is used for converting the lifting movement of the movable plate 11 into the horizontal rotation of the cylinder 4. The transmission assembly includes a rack 19, a gear A20, a transmission shaft A21, a worm 22, a worm wheel 23, a transmission shaft B24, a gear B25, a gear C26 and a transmission shaft C27. The rack 19 is fixed on the bristle mounting rod 9 on one side, the transmission shaft A21 is rotatably mounted on the inner side of the fireproof vertical filter tube 1, the worm 22 is fixed on the transmission shaft A21, a mounting plate 28 is fixed on the inner side of the fireproof vertical filter tube 1, the cylinder 4 is rotatably mounted on the mounting plate 28 through the transmission shaft C27, the gear B25 is fixed on the transmission shaft C27, and the transmission shaft B24 is also rotatably mounted on the mounting plate 28, the gear C26 and the worm wheel 23 are respectively fixed on the upper and lower ends of the transmission shaft B24, wherein the gear C26 is meshingly connected with the gear B25, and the worm wheel 23 is meshingly connected with the worm 22.

[0030] A transparent glass 14 is provided on the fireproof vertical filter tube 1, and the transparent glass 14 enables the operator to easily observe the water level inside the fireproof vertical filter tube 1 and the impurities in the water; an inlet pipe 6 is obliquely connected to the fireproof vertical filter tube 1, and a sealing cover is detachably connected to the inlet pipe 6, and the inlet pipe 6 is used to add water to the inner side of the fireproof vertical filter tube 1.

[0031] In this embodiment, the smoke enters the interior of the fireproof vertical filter tube 1 through the fireproof smoke inlet pipe 2, and then is filtered through the filter screen 5. The filtered smoke enters the inner side of the cylinder 4, and then enters the inner side of the fireproof smoke exhaust pipe 3 through the upper end opening of the cylinder 4 and is discharged. Compared with the common circular filter screens and square filter screens on the market, the design of the annular filter screen 5 can increase the filtering amount of smoke per unit time; when cleaning the filter screen 5, water can be poured into the inner bottom end of the fireproof vertical filter tube 1 in advance, and the power component set can be used to The drive connecting frame 13 moves upward, thereby driving the movable plate 11 and the sealing piston 12 to move upward, pushing the water at the inner bottom end of the fireproof vertical filter tube 1 to the inner upper end of the fireproof vertical filter tube 1, so that the water submerges the filter screen 5. In this process, the bristles 10 move up and down and generate vertical friction with the surface of the filter screen 5, and drive the cylinder 4 and the filter screen 5 to rotate with the cooperation of the transmission component. During the rotation of the filter screen 5, its surface and the bristles 10 generate horizontal friction, thereby improving the cleaning effect of the filter screen 5.

[0032] Embodiment 2

[0033] like Figure 2 and Figure 4 As shown, a fireproof smoke exhaust ventilation duct proposed in this embodiment, compared with the first embodiment, this embodiment also includes a smoke exhaust mechanism installed on the fireproof smoke exhaust pipe 3, the smoke exhaust mechanism includes a drive motor 17, a smoke exhaust fan 29, a rotating frame 30, a transmission shaft D31, a transmission shaft E32, a bevel gear A33 and a bevel gear B34, the outer side of the fireproof smoke exhaust pipe 3 is fixed with a motor bracket 18, the drive motor 17 is installed on the motor bracket 18, the transmission shaft D31 is connected to the output shaft of the drive motor 17, one end of the transmission shaft D31 is arranged on the inner side of the fireproof smoke exhaust pipe 3 and connected to the bevel gear Wheel A33 is connected, the rotating frame 30 is fixed on the inner wall of the fireproof smoke exhaust pipe 3, the smoke exhaust fan 29 is rotatably installed on the rotating frame 30 through the transmission shaft E32, the bevel gear B34 is fixed on the end of the transmission shaft E32, and the bevel gear B34 is meshingly connected with the bevel gear A33; the drive motor 17 is started to drive the transmission shaft D31 and the bevel gear A33 to rotate, the rotation of the bevel gear A33 drives the bevel gear B34 to rotate, and the bevel gear B34 drives the transmission shaft E32 and the smoke exhaust fan 29 to rotate, and the smoke exhaust fan 29 helps to accelerate the exhaust efficiency of smoke during the rotation process.

[0034] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A fireproof smoke exhaust ventilation duct, characterized in that: include: A fireproof vertical filter pipe (1) connected to a fireproof smoke inlet pipe (2) and a fireproof smoke exhaust pipe (3); A cylinder (4) with an opening at the upper end is rotatably mounted on the inner side of the fireproof vertical filter tube (1), and a through hole is opened on the periphery of the cylinder (4); A filter screen (5), the filter screen (5) is arranged around the cylinder (4); A cleaning mechanism, the cleaning mechanism comprising a movable plate (11), a sealing piston (12), a plurality of bristle mounting rods (9), a plurality of bristles (10) and a power assembly, wherein the movable plate (11) is movably arranged on the inner side of a fireproof vertical filter tube (1), the sealing piston (12) is arranged on the movable plate (11), the plurality of bristle mounting rods (9) are vertically arranged on the movable plate (11) along a circular array, the plurality of bristles (10) are respectively mounted on the plurality of bristle mounting rods (9), and the power assembly is used to drive the movable plate (11) to rise and fall; A transmission assembly is arranged on the inner side of the fireproof vertical filter tube (1) and is used to convert the lifting movement of the movable plate (11) into the horizontal rotation of the cylinder (4).

2. A fireproof smoke exhaust ventilation duct according to claim 1, characterized in that: The transmission assembly comprises a rack (19), a gear A (20), a transmission shaft A (21), a worm (22), a worm wheel (23), a transmission shaft B (24), a gear B (25), a gear C (26) and a transmission shaft C (27), wherein the rack (19) is fixed on a bristle mounting rod (9) on one side, the transmission shaft A (21) is rotatably mounted on the inner side of the fireproof vertical filter tube (1), the worm (22) is fixed on the transmission shaft A (21), and the fireproof vertical filter tube (1) is rotatably mounted on the inner side of the fireproof vertical filter tube (1). A mounting plate (28) is fixed on the inner side, and the cylinder (4) is rotatably mounted on the mounting plate (28) via a transmission shaft C (27). The gear B (25) is fixed on the transmission shaft C (27). The transmission shaft B (24) is also rotatably mounted on the mounting plate (28). The gear C (26) and the worm gear (23) are respectively fixed on the upper and lower ends of the transmission shaft B (24), wherein the gear C (26) is meshingly connected with the gear B (25), and the worm gear (23) is meshingly connected with the worm (22).

3. The fireproof smoke exhaust ventilation duct according to claim 1, characterized in that: A smoke exhaust mechanism is installed on the fireproof smoke exhaust pipe (3), and the smoke exhaust mechanism comprises a driving motor (17), a smoke exhaust fan (29), a rotating frame (30), a transmission shaft D (31), a transmission shaft E (32), a bevel gear A (33) and a bevel gear B (34). A motor bracket (18) is fixed to the outer side of the fireproof smoke exhaust pipe (3), the driving motor (17) is installed on the motor bracket (18), the transmission shaft D (31) is connected to the output shaft of the driving motor (17), one end of the transmission shaft D (31) is arranged on the inner side of the fireproof smoke exhaust pipe (3) and is connected to the bevel gear A (33), the rotating frame (30) is fixed on the inner wall of the fireproof smoke exhaust pipe (3), the smoke exhaust fan (29) is rotatably installed on the rotating frame (30) through the transmission shaft E (32), the bevel gear B (34) is fixed to the end of the transmission shaft E (32), and the bevel gear B (34) is meshed with the bevel gear A (33).

4. The fireproof smoke exhaust ventilation duct according to claim 1, characterized in that: The input end of the fireproof smoke inlet pipe (2) is arranged to be inclined, and the lowest end of the fireproof smoke inlet pipe (2) is connected to the inner cavity of the fireproof vertical filter pipe (1).

5. The fireproof smoke exhaust ventilation duct according to claim 1, characterized in that: The fireproof vertical filter tube (1) is provided with transparent glass (14); a water inlet pipe (6) is obliquely connected and provided on the fireproof vertical filter tube (1), and a sealing cover is detachably connected to the water inlet pipe (6).

6. The fireproof smoke exhaust ventilation duct according to claim 1, characterized in that: A limit ring (7) is arranged at the upper end of the cylinder (4), two sealing rings (8) are arranged at intervals on the top of the inner wall of the fireproof vertical filter tube (1), and the limit ring (7) is rotatably arranged between the two sealing rings (8).

7. The fireproof smoke exhaust ventilation duct according to claim 1, characterized in that: The power assembly comprises a servo motor (15) and a screw rod (16); a connecting frame (13) is connected to the movable plate (11); the servo motor (15) is installed on the fireproof vertical filter tube (1); the screw rod (16) is connected to the output shaft of the servo motor (15); and the connecting frame (13) is threadedly connected to the screw rod (16).

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