Centrifugal smoke exhaust fan

Abstract

The utility model relates to the technical field of smoke exhaust fans, and discloses a centrifugal smoke exhaust fan which comprises a cylinder and scrubbing brush rods, a mounting plate is welded to the top end of a mounting frame, a stepping motor controller, a stepping motor driver and a stepping motor are fixedly mounted at the top end of the mounting plate, and a movable rod is welded to a power shaft of the stepping motor; a sliding shaft is welded to one side of the movable rod, a groove is formed in the other side of the scrubbing brush rod, and one end of the sliding shaft is slidably connected into the groove. According to the scheme, when the stepping motor controller controls the stepping motor driver to drive the stepping motor to work, a power shaft of the stepping motor drives the movable rod to conduct reciprocating deflection along a set angle, meanwhile, the movable rod drives the sliding shaft to conduct reciprocating deflection along the set angle, the sliding shaft drives the scrubbing brush rod to conduct reciprocating movement in the deflection process, and therefore the scrubbing brush rod is driven to conduct reciprocating movement. The scrubbing brush rod can brush off particle impurities mixed in filter holes of the iron wire filter screen in the reciprocating motion process, and the filter holes of the iron wire filter screen are prevented from being blocked by the impurities.

Description

Technical Field

[0001] The present application relates to the technical field of smoke exhaust fans, and in particular to a centrifugal smoke exhaust fan. Background Art

[0002] A smoke exhaust fan is a machine that can quickly exhaust odor, high temperature, and oil smoke generated in a room. The machine is characterized by good high temperature resistance and high efficiency. When the existing smoke exhaust fan processes smoke, it will first suck the smoke into the body and be filtered by the filter, and then discharge it. However, the particulate impurities in the smoke can easily clog the filter holes of the filter, which can easily cause the filter plate to be blocked, affecting the smoke exhaust effect. Utility Model Content

[0003] In order to solve the above-mentioned problem that particulate impurities in smoke easily clog the filter holes of the filter screen, which easily causes clogging of the filter plate and affects the smoke exhaust effect, the present application provides a centrifugal smoke exhaust fan.

[0004] The centrifugal smoke exhaust fan provided in this application adopts the following technical solution:

[0005] A centrifugal smoke exhaust fan comprises a cylinder and a bristle brush rod, wherein a mounting frame is fixedly sleeved at one end of the cylinder, a wire filter is welded to the middle of one side of the mounting frame, an exhaust mechanism is arranged inside the cylinder, and a limiting assembly for limiting the bristle brush rod is arranged at the top and bottom ends of one side of the mounting frame, and the bristles on one side of the bristle brush rod are tightly fitted with the wire filter;

[0006] A mounting plate is welded to the top of the mounting frame, and a stepper motor controller, a stepper motor driver and a stepper motor are fixedly installed on the top of the mounting plate. The stepper motor controller is electrically connected to the stepper motor driver, and the stepper motor driver is electrically connected to the stepper motor. A movable rod is welded to the power shaft of the stepper motor, and a sliding shaft is welded to one side of the movable rod. A groove is provided on the other side of the bristle brush rod, and one end of the sliding shaft is slidably connected to the inside of the groove.

[0007] Preferably, the limiting assembly consists of two fixed blocks and a limiting rod, the two fixed blocks are respectively welded to two corners on one side of the mounting frame, the two ends of the limiting rod are respectively welded to one side of the two fixed blocks, and one end of the bristle brush rod is movably sleeved on the outer surface of the limiting rod.

[0008] Preferably, the exhaust mechanism consists of two fixed rods and a fixed box, the fixed box is located inside the cylinder, one end of the two fixed rods are welded to the outer surface of the fixed box, the other ends of the two fixed rods are welded to the inner wall of the cylinder, a motor is fixedly installed inside the fixed box, a connecting plate is welded to the end of the power shaft of the motor, and a plurality of blades are welded to the outer surface of the connecting plate.

[0009] Preferably, four circular holes are formed at the edge of the installation frame, and hexagon socket bolts are movably penetrated inside the four circular holes.

[0010] To summarize, the present application includes the following beneficial technical effects: when the stepper motor controller controls the stepper motor driver to drive the stepper motor to work, the power shaft of the stepper motor drives the movable rod to deflect back and forth along the set angle, and at the same time, the movable rod drives the sliding shaft to deflect back and forth along the set angle, and the sliding shaft drives the bristle brush rod to move back and forth during the deflection process. During the reciprocating movement of the bristle brush rod, the particulate impurities mixed in the filter holes of the wire filter can be brushed off to prevent the impurities from clogging the filter holes of the wire filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the application.

[0012] Figure 2 It is a side view structural schematic diagram of an application embodiment.

[0013] Figure 3 It is a schematic diagram of the combined structure of the fixing rod, the fixing box, the motor, the connecting piece and the blades in the embodiment of the application.

[0014] Explanation of the reference numerals: 11. Cylinder; 12. Mounting frame; 2. Exhaust mechanism; 21. Fixing rod; 22. Fixing box; 23. Motor; 24. Connecting piece; 25. Blade; 3. Brush rod; 4. Wire filter; 5. Limiting assembly; 51. Fixing block; 52. Limiting rod; 6. Mounting plate; 71. Stepper motor controller; 72. Stepper motor driver; 73. Stepper motor; 74. Movable rod; 75. Sliding shaft; 8. Hexagon socket bolt. DETAILED DESCRIPTION

[0015] The following is combined with Figure 1-3 This application is described in further detail.

[0016] The present application embodiment discloses a centrifugal smoke exhaust fan, referring to Figure 1 and Figure 2, including a cylinder 11 and a bristle brush rod 3, one end of the cylinder 11 is fixedly sleeved with a mounting frame 12, a wire filter 4 is welded in the middle of one side of the mounting frame 12, the wire filter 4 can be used to prevent particulate impurities from entering the cylinder 11, an exhaust mechanism 2 is arranged inside the cylinder 11, the exhaust mechanism 2 can suck the indoor smoke and dust through the cylinder 11 and discharge it to the outside, the top and bottom ends of one side of the mounting frame 12 are both provided with a limiting assembly 5 for limiting the bristle brush rod 3, so that the bristle brush rod 3 always maintains a vertical state, and the bristles on one side of the bristle brush rod 3 are tightly fitted with the wire filter 4;

[0017] Reference Figure 1 and Figure 2 A mounting plate 6 is welded to the top of the mounting frame 12, and a stepper motor controller 71, a stepper motor driver 72 and a stepper motor 73 are fixedly mounted on the top of the mounting plate 6. The mounting plate 6 can be used to support and fix the stepper motor controller 71, the stepper motor driver 72 and the stepper motor 73. The stepper motor controller 71 is electrically connected to the stepper motor driver 72, and the stepper motor driver 72 is electrically connected to the stepper motor 73. A movable rod 74 is welded to the power shaft of the stepper motor 73, and a sliding shaft 75 is welded to one side of the movable rod 74. A groove is provided on the other side of the bristle brush rod 3, and one end of the sliding shaft 75 is slidably connected to the inside of the groove. When the stepper motor controller 71 controls the stepper motor driver 72 to drive the stepper motor 73 to work, the power shaft of the stepper motor 73 drives the movable rod 74 to reciprocate along the set angle, and at the same time, the movable rod 74 drives the sliding shaft 75 to reciprocate along the set angle. During the deflection process, the sliding shaft 75 drives the bristle brush rod 3 to move back and forth. During the reciprocating movement, the bristle brush rod 3 can brush off the particulate impurities mixed in the filter holes of the wire filter 4.

[0018] Reference Figure 1 The limiting assembly 5 consists of two fixing blocks 51 and a limiting rod 52. The two fixing blocks 51 are respectively welded to two corners on one side of the installation frame 12. The two ends of the limiting rod 52 are respectively welded to one side of the two fixing blocks 51. The two fixing blocks 51 can cooperate to support and fix the limiting rod 52. One end of the bristle brush rod 3 is movably sleeved on the outer surface of the limiting rod 52. In this way, the bristle brush rod 3 can be limited so that the bristle brush rod 3 always remains in a vertical state during the movement.

[0019] Reference Figure 3The exhaust mechanism 2 is composed of two fixing rods 21 and a fixing box 22. The fixing box 22 is located inside the cylinder 11. One end of the two fixing rods 21 is welded to the outer surface of the fixing box 22, and the other end of the two fixing rods 21 is welded to the inner wall of the cylinder 11. The two fixing rods 21 cooperate to support and fix the fixing box 22 inside the cylinder 11. A motor 23 is fixedly installed inside the fixing box 22. The fixing box 22 can support and fix the motor 23. A connecting piece 24 is welded to the end of the power shaft of the motor 23. A plurality of blades 25 are welded to the outer surface of the connecting piece 24. The plurality of blades 25 can be connected to the power shaft of the motor 23 through the connecting piece 24. When the power shaft of the motor 23 drives the plurality of blades 25 to rotate at a high speed through the connecting piece 24, the wind force generated by the rotation of the plurality of blades 25 can draw the indoor smoke and dust into the cylinder 11, and discharge it to the outdoors through the cylinder 11.

[0020] Reference Figure 1 and Figure 2 Four circular holes are provided at the edge of the mounting frame 12, and hexagon socket bolts 8 are movably penetrated inside the four circular holes. After the cylinder 11 is installed in the wall hole, the four hexagon socket bolts 8 are rotated so that the four hexagon socket bolts 8 are all threadedly connected to the wall, and the cylinder 11 can be fixedly installed in the wall hole.

[0021] The implementation principle of a centrifugal smoke exhaust fan in an embodiment of the present application is as follows: during use, the motor 23 is started, and when the power shaft of the motor 23 drives the blades 25 to rotate at high speed through the connecting piece 24, the wind force generated by the rotation of the blades 25 can filter the indoor smoke through the wire filter 4 and then draw it into the cylinder 11, and discharge it to the outside through the cylinder 11. At the same time, the stepper motor controller 71 is started. When the stepper motor controller 71 controls the stepper motor driver 72 to drive the stepper motor 73 to work, the power shaft of the stepper motor 73 drives the movable rod 74 to reciprocate along the set angle, and at the same time, the movable rod 74 drives the sliding shaft 75 to reciprocate along the set angle. During the deflection process, the sliding shaft 75 drives the bristle brush rod 3 to move back and forth. During the reciprocating movement, the bristle brush rod 3 can brush off the particulate impurities mixed in the filter holes of the wire filter 4 to prevent the impurities from clogging the filter holes of the wire filter 4.

[0022] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0023] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0024] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0025] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A centrifugal smoke exhaust fan, comprising a cylinder (11) and a bristle brush rod (3), characterized in that: A mounting frame (12) is fixedly sleeved at one end of the cylinder (11), a wire filter (4) is welded in the middle of one side of the mounting frame (12), an exhaust mechanism (2) is arranged inside the cylinder (11), and a limiting assembly (5) for limiting the position of the bristle brush rod (3) is arranged at the top and bottom ends of one side of the mounting frame (12), and the bristles on one side of the bristle brush rod (3) are tightly fitted with the wire filter (4); A mounting plate (6) is welded to the top of the mounting frame (12); a stepper motor controller (71), a stepper motor driver (72) and a stepper motor (73) are fixedly mounted to the top of the mounting plate (6); the stepper motor controller (71) is electrically connected to the stepper motor driver (72); the stepper motor driver (72) is electrically connected to the stepper motor (73); a movable rod (74) is welded to the power shaft of the stepper motor (73); a sliding shaft (75) is welded to one side of the movable rod (74); a groove is provided on the other side of the bristle brush rod (3); one end of the sliding shaft (75) is slidably connected to the inside of the groove.

2. A centrifugal smoke exhaust fan according to claim 1, characterized in that: The limiting assembly (5) is composed of two fixed blocks (51) and a limiting rod (52). The two fixed blocks (51) are respectively welded to two corners of one side of the installation frame (12). The two ends of the limiting rod (52) are respectively welded to one side of the two fixed blocks (51). One end of the bristle brush rod (3) is movably sleeved on the outer surface of the limiting rod (52).

3. A centrifugal smoke exhaust fan according to claim 1, characterized in that: The exhaust mechanism (2) is composed of two fixed rods (21) and a fixed box (22); the fixed box (22) is located inside the cylinder (11); one end of the two fixed rods (21) is welded to the outer surface of the fixed box (22); the other ends of the two fixed rods (21) are welded to the inner wall of the cylinder (11); a motor (23) is fixedly installed inside the fixed box (22); a connecting piece (24) is welded to the end of the power shaft of the motor (23); and a plurality of blades (25) are welded to the outer surface of the connecting piece (24).

4. A centrifugal smoke exhaust fan according to claim 1, characterized in that: Four circular holes are provided at the edge of the installation frame (12), and hexagon socket bolts (8) are movably penetrated inside the four circular holes.

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