A self-adjusting axial flow fire-fighting smoke exhaust fan

Abstract

This invention provides a self-adjusting axial flow fire-fighting smoke exhaust fan, comprising a first ventilation duct, a second ventilation duct, a third ventilation duct, a fourth ventilation duct, a water inlet pipe, a dustproof mechanism, three toothed rings, and a drive mechanism. The three toothed rings are respectively disposed at the ports of the second, third, and fourth ventilation ducts. This self-adjusting axial flow fire-fighting smoke exhaust fan, through the coordinated arrangement of the first, second, third, and fourth ventilation ducts, the water inlet pipe, the dustproof mechanism, the three toothed rings, and the drive mechanism, allows the fan to be transformed from a straight duct into a curved duct. Furthermore, because the fan and motor are detachable, the fan can be located at the lower part of the bend. After personnel inject water, this bend can become a water reservoir, facilitating the cleaning of the fan without causing water to adhere to the motor.

Description

Technical Field

[0001] This invention relates to the field of smoke exhaust fan equipment technology, specifically to an axial flow fire smoke exhaust fan with self-adjusting function. Background Technology

[0002] Currently, existing fire exhaust fans have certain drawbacks in use. After being connected to the exhaust duct, dust in the smoke easily accumulates inside the fan duct. After prolonged use, dust accumulates on the front grille, which in turn pollutes the inner wall of the duct near the grille. The accumulation of dust on both sides affects the thoroughness of dust removal, and the disassembly and assembly of the fan also presents difficulties in the spread of dust, greatly increasing the difficulty of fan disassembly, assembly, and maintenance. Summary of the Invention

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this invention provides an axial flow fire-fighting smoke exhaust fan with self-adjusting function.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the present invention provides the following technical solution: an axial flow fire-fighting smoke exhaust fan with self-adjusting function, comprising a first ventilation duct, a second ventilation duct, a third ventilation duct, a fourth ventilation duct, a water inlet pipe, a dustproof mechanism, three gear rings, and a drive mechanism. The three gear rings are respectively disposed at the ports of the second, third, and fourth ventilation ducts. The first, second, third, and fourth ventilation ducts are pivotally connected sequentially. The three drive mechanisms are respectively disposed on the first, second, and third ventilation ducts. The water inlet pipe is obliquely disposed on the fourth ventilation duct, and the dustproof mechanism is disposed on the end of the fourth ventilation duct away from the third ventilation duct. The fan also includes a main motor and a fan, with the main motor disposed inside the third ventilation duct. The fan is electromagnetically connected to the output terminal of the main motor.

[0007] Preferably, the drive mechanism includes motors and gears. Three motors are respectively mounted on the first, second, and third ventilation pipes. Gears are mounted on the output end of the motors and mesh with a gear ring.

[0008] Preferably, the system also includes a main telescopic rod, an electromagnetic connector, a mounting slide bracket, and a second slide rail. The second slide rail is installed on the inner wall of the third and fourth ventilation ducts, and the mounting slide bracket is slidably fitted onto the second slide rail. The main motor is mounted on the mounting slide bracket, and the main telescopic rod is located at the output end of the main motor. The electromagnetic connector is located at the movable end of the main telescopic rod and is magnetically connected to the center of the fan.

[0009] Preferably, it also includes a slide rail and a sliding snap-fit ​​ring. The slide rail is disposed on the bottom inner wall of the fourth ventilation duct, and the sliding snap-fit ​​ring is slidably fitted onto the slide rail. One side of the sliding snap-fit ​​ring is detachably snapped onto the edge of the fan.

[0010] Preferably, it also includes an electromagnet and a main electromagnet. The electromagnet is sleeved on the outside of the third ventilation duct and is magnetically connected to the mounting sliding bracket. The main electromagnet is located on the outside of the fourth ventilation duct and is magnetically connected to the sliding retaining ring.

[0011] Preferably, the dustproof mechanism includes a perforated plate. The perforated plate is disposed at the port of the fourth ventilation duct, and the perforated plate has openings.

[0012] Preferably, the dustproof mechanism further includes an outer ring, a main drive shaft seat, and a mounting base. The mounting base is disposed on the fourth ventilation duct, and the main drive shaft seat is disposed on the mounting base. The outer ring is disposed on the output end of the main drive shaft seat.

[0013] Preferably, the size of the outer ring is adapted to the port of the fourth ventilation duct.

[0014] Preferably, the dustproof mechanism further includes a connecting rod, an electrically operated telescopic rod, a baffle, and multiple rubber plugs. The electrically operated telescopic rod is mounted on the outer ring, and the connecting rod is mounted on the movable end of the electrically operated telescopic rod. The baffle is connected to the connecting rod, and multiple rubber plugs are evenly distributed on one side of the baffle. Each rubber plug corresponds one-to-one with a hole in the perforated plate.

[0015] Preferably, a cross-shaped slot is provided on the side of the fan away from the main telescopic rod. The dustproof mechanism also includes a snap-fit ​​connector, which is located in the center of the inner side of the baffle, with one end of the snap-fit ​​connector passing through the opening and fitting into the cross-shaped slot.

[0016] (III) Beneficial Effects

[0017] This invention provides an axial flow fire-fighting smoke exhaust fan with self-adjusting function. It has the following beneficial effects:

[0018] 1. This self-adjusting axial flow fire exhaust fan utilizes a first ventilation pipe, a second ventilation pipe, a third ventilation pipe, a fourth ventilation pipe, a water inlet pipe, a dustproof mechanism, three toothed rings, and a drive mechanism in mutual cooperation. This allows the invention to transform from a straight pipe to a curved pipe. Furthermore, because the fan and motor are detachable, the fan can be located at the lower part of the bend. After personnel inject water, this bend can become a water reservoir, facilitating the washing of the fan without causing water to get on the motor. Attached Figure Description

[0019] Figure 1 This is a first perspective view of the present invention;

[0020] Figure 2This is a second perspective view of the present invention;

[0021] Figure 3 This is a third perspective view of the present invention;

[0022] Figure 4 This is the fourth perspective view of the present invention;

[0023] Figure 5 This is the fifth perspective view of the present invention;

[0024] Figure 6 This is the sixth perspective view of the present invention;

[0025] Figure 7 This is the seventh perspective view of the present invention;

[0026] Figure 8 For the present invention Figure 2 Enlarged view of point A in the middle.

[0027] In the diagram: 1 First ventilation pipe, 2 Second ventilation pipe, 3 Electromagnet, 4 Third ventilation pipe, 5 Water inlet pipe, 6 Fourth ventilation pipe, 7 Electric telescopic rod, 8 Rubber plug, 9 Baffle, 10 Mesh plate, 11 Dustproof mechanism, 12 Connecting rod, 13 Outer ring, 14 Main drive shaft seat, 15 Mounting seat, 16 Main electromagnet, 17 Gear ring, 18 Motor, 19 Gear, 20 Drive mechanism, 21 Sliding snap ring, 22 Fan, 23 Main motor, 24 Mounting sliding frame, 25 Main telescopic rod, 26 Electromagnetic connector, 27 Slide rail one, 28 Slide rail two, 29 Opening, 30 Snap-fit ​​connector. Detailed Implementation

[0028] This invention provides an axial flow fire-fighting smoke exhaust fan with self-adjusting function, such as... Figure 1-8 As shown, the system includes a first ventilation pipe 1, a second ventilation pipe 2, a third ventilation pipe 4, a fourth ventilation pipe 6, a water inlet pipe 5, a dustproof mechanism 11, three toothed rings 17, and a drive mechanism 20. The three toothed rings 17 are respectively disposed on the ports of the second ventilation pipe 2, the third ventilation pipe 4, and the fourth ventilation pipe 6. The first ventilation pipe 1, the second ventilation pipe 2, the third ventilation pipe 4, and the fourth ventilation pipe 6 are pivotally connected in sequence. The three drive mechanisms 20 are respectively disposed on the first ventilation pipe 1, the second ventilation pipe 2, and the third ventilation pipe 4. The water inlet pipe 5 is obliquely disposed on the fourth ventilation pipe 6, and the dustproof mechanism 11 is disposed on the end of the fourth ventilation pipe 6 away from the third ventilation pipe 4. It also includes a main motor 23 and a fan 22. The main motor 23 is disposed inside the third ventilation pipe 4. The fan 22 is electromagnetically connected to the output terminal of the main motor 23.

[0029] The drive mechanism 20 includes motors 18 and gears 19. Three motors 18 are respectively mounted on the first ventilation pipe 1, the second ventilation pipe 2, and the third ventilation pipe 4. The gears 19 are mounted on the output end of the motors 18 and mesh with the gear ring 17.

[0030] It also includes a main telescopic rod 25, an electromagnetic connector 26, a mounting slide bracket 24, and a second slide rail 28. The second slide rail 28 is installed on the inner wall of the third ventilation pipe 4 and the fourth ventilation pipe 6, and the mounting slide bracket 24 is slidably fitted onto the second slide rail 28. The main motor 23 is mounted on the mounting slide bracket 24, and the main telescopic rod 25 is mounted on the output end of the main motor 23. The electromagnetic connector 26 is mounted on the movable end of the main telescopic rod 25 and is magnetically connected to the center of the fan 22.

[0031] It also includes a slide rail 27 and a sliding snap ring 21. The slide rail 27 is located on the bottom inner wall of the fourth ventilation duct 6, and the sliding snap ring 21 is slidably fitted onto the slide rail 27. One side of the sliding snap ring 21 is detachably snapped onto the edge of the fan 22.

[0032] It also includes electromagnet 3 and main electromagnet 16. Electromagnet 3 is sleeved on the outside of the third ventilation duct 4 and is magnetically connected to the mounting sliding bracket 24. Main electromagnet 16 is located on the outside of the fourth ventilation duct 6 and is magnetically connected to the sliding retaining ring 21.

[0033] The dustproof mechanism 11 includes a perforated plate 10. The perforated plate 10 is disposed at the port of the fourth ventilation pipe 6, and an opening 29 is provided on the perforated plate 10.

[0034] The dustproof mechanism 11 also includes an outer ring 13, a main drive shaft seat 14, and a mounting base 15. The mounting base 15 is mounted on the fourth ventilation pipe 6, and the main drive shaft seat 14 is mounted on the mounting base 15. The outer ring 13 is mounted on the output end of the main drive shaft seat 14.

[0035] The dimensions of the outer ring 13 are adapted to the port of the fourth ventilation duct 6.

[0036] The dustproof mechanism 11 also includes a connecting rod 12, an electric telescopic rod 7, a baffle 9, and multiple rubber plugs 8. The electric telescopic rod 7 is mounted on the outer ring 13, and the connecting rod 12 is mounted on the movable end of the electric telescopic rod 7. The baffle 9 is connected to the connecting rod 12, and the multiple rubber plugs 8 are evenly distributed on one side of the baffle 9. The multiple rubber plugs 8 correspond one-to-one with the holes on the perforated plate 10.

[0037] A cross-shaped slot is provided on the side of the fan 22 away from the main telescopic rod 25. The dustproof mechanism 11 also includes a snap-fit ​​connector 30, which is located in the center of the inner side of the baffle 9. One end of the snap-fit ​​connector 30 passes through the opening 29 and is adapted to the cross-shaped slot.

[0038] Working principle: This invention can achieve the purpose of external disassembly without the need for personnel. Through self-disassembly and deformation within the smoke exhaust duct, it completes the functional transformation from a ventilation duct to a water storage tank. In use, in order to achieve the purpose of smoke exhaust and ventilation, the main motor 23 first drives the main telescopic rod 25 to make the fan 22 rotate, allowing the airflow to flow in the first ventilation duct 1, the second ventilation duct 2, the third ventilation duct 4 and the fourth ventilation duct 6 and finally be discharged from the holes of the mesh plate 10.

[0039] When personnel need to clean the fan 22 and the perforated plate 10, the motor 18 on the second ventilation pipe 2 is controlled to drive the gear 19 to rotate, which in turn causes the gear ring 17 connected to the third ventilation pipe 4 to rotate, causing the third ventilation pipe 4, which was originally in a straight line with the second ventilation pipe 2, to bend downwards. At this time, the main telescopic rod 25 is controlled to extend so that the fan 22 engages with the sliding snap ring 21. Then, the electromagnetic connector 26 is controlled to disconnect, allowing the fan 22, along with the sliding snap ring 21, to move along the slide rails 28 on the third ventilation pipe 4 and the fourth ventilation pipe 6 to the perforated plate 10. Then, the main drive shaft seat 14 rotates, causing the outer ring 13 to fit onto the port of the fourth ventilation pipe 6. Then, the electric telescopic rod 7 is controlled to retract, causing the multiple rubber plugs 8 on the baffle 9 to completely block the holes on the perforated plate 10. At the same time, the snap connector 30 engages with the center of the fan 22. Then, the motor 18 on the third ventilation pipe 4 is controlled to further rotate the fourth ventilation pipe 6 downwards, forming a shape like... Figure 6 The system works as follows: personnel insert a water nozzle into the water inlet pipe 5 to rinse the fan 22 and soak it in detergent. The clean water only accumulates at the fourth ventilation duct 6, preventing the main motor 23 and main telescopic rod 25 inside the third ventilation duct 4 from being soaked. Simultaneously, when the rubber plug 8 detaches from the mesh plate 10, water flows out from the holes in the mesh plate 10, using the impact of the water flow to clean the accumulated dust inside the holes. Compared to traditional cleaning methods, personnel do not need to disassemble the ventilation mesh, which is the dustiest part, allowing for side cleaning and effectively protecting the personnel's lungs. Furthermore, when it is necessary to disassemble the motor, the electromagnet 3 can be directly controlled to disconnect from the mounting slide bracket 24. The mounting slide bracket 24, carrying the main motor 23, slides directly along the slide rail 28 to the port of the fourth ventilation duct 6, facilitating the replacement of the main motor 23 and main telescopic rod 25.

[0040] In summary, this self-adjusting axial flow fire exhaust fan utilizes a combination of a first ventilation pipe 1, a second ventilation pipe 2, a third ventilation pipe 4, a fourth ventilation pipe 6, a water inlet pipe 5, a dustproof mechanism 11, three toothed rings 17, and a drive mechanism 20. This allows the fan to bend from a straight pipe, and because the fan and motor are detachable, the fan can be positioned at the lower part of the bend. When water is injected, this bend becomes a water reservoir, facilitating cleaning of the fan without causing water to get on the motor.

Claims

1. A axial flow fire smoke exhaust fan with self-adjusting function, characterized in that: The system includes a first ventilation pipe (1), a second ventilation pipe (2), a third ventilation pipe (4), a fourth ventilation pipe (6), a water inlet pipe (5), a dustproof mechanism (11), three toothed rings (17), and a drive mechanism (20). The three toothed rings (17) are respectively located on the ports of the second ventilation pipe (2), the third ventilation pipe (4), and the fourth ventilation pipe (6). The first ventilation pipe (1), the second ventilation pipe (2), the third ventilation pipe (4), and the fourth ventilation pipe (6) are pivotally connected in sequence. The three drive mechanisms (20) are respectively located on the first ventilation pipe (1), the second ventilation pipe (2), and the third ventilation pipe (4). The water inlet pipe (5) is obliquely located on the fourth ventilation pipe (6). The dustproof mechanism (11) is located on the end of the fourth ventilation pipe (6) away from the third ventilation pipe (4). The system also includes a main motor (23) and a fan (22). The main motor (23) is located inside the third ventilation pipe (4), and the fan (22) is electromagnetically connected to the output end of the main motor (23). The drive mechanism (20) includes a motor (18) and a gear (19). The three motors (18) are respectively installed on the first ventilation pipe (1), the second ventilation pipe (2) and the third ventilation pipe (4). The gear (19) is installed on the output end of the motor (18) and meshes with the gear ring (17).

2. The axial flow fire-fighting smoke exhaust fan with self-adjusting function according to claim 1, characterized in that: It also includes a main telescopic rod (25), an electromagnetic connector (26), a mounting sliding frame (24), and a second slide rail (28). The second slide rail (28) is set on the inner wall of the third ventilation pipe (4) and the fourth ventilation pipe (6). The mounting sliding frame (24) is slidably fitted on the second slide rail (28). The main motor (23) is set on the mounting sliding frame (24). The main telescopic rod (25) is set on the output end of the main motor (23). The electromagnetic connector (26) is set on the movable end of the main telescopic rod (25). The electromagnetic connector (26) is magnetically connected to the center of the fan (22).

3. An axial flow fire-fighting smoke exhaust fan with self-adjusting function according to claim 2, characterized in that: It also includes a slide rail (27) and a sliding snap ring (21). The slide rail (27) is set on the bottom inner wall of the fourth ventilation pipe (6). The sliding snap ring (21) is slidably fitted on the slide rail (27). One side of the sliding snap ring (21) is detachably snapped to the edge of the fan (22).

4. An axial flow fire-fighting smoke exhaust fan with self-adjusting function according to claim 3, characterized in that: It also includes an electromagnet (3) and a main electromagnet (16). The electromagnet (3) is sleeved on the outside of the third ventilation pipe (4). The electromagnet (3) is magnetically connected to the mounting sliding bracket (24). The main electromagnet (16) is set on the outside of the fourth ventilation pipe (6). The main electromagnet (16) is magnetically connected to the sliding snap ring (21).

5. An axial flow fire-fighting smoke exhaust fan with self-adjusting function according to claim 4, characterized in that: The dustproof mechanism (11) includes a perforated plate (10), which is disposed on the port of the fourth ventilation pipe (6), and the perforated plate (10) has an opening (29).

6. An axial flow fire-fighting smoke exhaust fan with self-adjusting function according to claim 5, characterized in that: The dustproof mechanism (11) also includes an outer ring (13), a main drive shaft seat (14) and a mounting seat (15). The mounting seat (15) is disposed on the fourth ventilation pipe (6), the main drive shaft seat (14) is disposed on the mounting seat (15), and the outer ring (13) is disposed on the output end of the main drive shaft seat (14).

7. An axial flow fire-fighting smoke exhaust fan with self-adjusting function according to claim 6, characterized in that: The dimensions of the outer ring (13) are adapted to the port of the fourth ventilation pipe (6).

8. An axial flow fire-fighting smoke exhaust fan with self-adjusting function according to claim 7, characterized in that: The dustproof mechanism (11) also includes a connecting rod (12), an electric telescopic rod (7), a baffle (9) and multiple rubber plugs (8). The electric telescopic rod (7) is set on the outer ring (13), the connecting rod (12) is set on the movable end of the electric telescopic rod (7), the baffle (9) is connected to the connecting rod (12), and multiple rubber plugs (8) are evenly distributed on one side of the baffle (9). The multiple rubber plugs (8) correspond one-to-one with the holes on the perforated plate (10).

9. An axial flow fire-fighting smoke exhaust fan with self-adjusting function according to claim 8, characterized in that: The fan (22) has a cross-shaped slot on the side away from the main telescopic rod (25). The dustproof mechanism (11) also includes a snap-fit ​​connector (30). The snap-fit ​​connector (30) is located in the center of the inner side of the baffle (9). One end of the snap-fit ​​connector (30) passes through the opening (29) and is adapted to the cross-shaped slot.

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