Smoke exhaust and air supply device with built-in dust removal function

Abstract

This utility model discloses a smoke-proof and exhaust-air-supplying device with self-cleaning function, belonging to the field of smoke-proof and exhaust technology. It includes an air supply duct, with mounting rods and a dust filter screen fixedly connected to the inner wall of the duct. A dual-axis motor is fixedly connected to the mounting rods, and air supply blades are fixedly connected to the top of the through-type long shaft of the dual-axis motor. The bottom of the through-type long shaft is connected to a brush plate via a clutch assembly. The clutch assembly is used to realize the transmission connection and interruption between the through-type long shaft and the brush plate. When in the transmission connection state, the dual-axis motor drives the brush plate to rotate, thereby removing dust from the dust filter screen. A dust collection assembly is provided on the outer wall of the air supply duct, and the dust collection port of the dust collection assembly is located below the dust filter screen. This utility model, employing the above structure, provides a smoke-proof and exhaust-air-supplying device with self-cleaning function. Its simple structure helps ensure efficient air supply.

Description

Technical Field

[0001] This utility model belongs to the field of smoke prevention and exhaust technology, and in particular relates to a smoke prevention and exhaust air supply device with a self-cleaning function. Background Technology

[0002] The smoke control and exhaust system has two main functions: first, it uses the air supply system to prevent toxic and high-temperature smoke from entering the evacuation route, which is conducive to the safe evacuation of personnel; second, it uses the smoke exhaust system to remove toxic and high-temperature smoke generated at the fire scene in a timely manner, ensuring the safety of the area.

[0003] The air supply device is an important component of the air supply system. During the air supply process, the airflow may contain some impurities. After prolonged use, these impurities will accumulate at the fan blades of the air supply device, causing wear and tear on the blades and potentially reducing the smoothness of the fan blade rotation. Existing technology uses dust filters to remove impurities and cleaning components to clean the dust filters. However, the cleaning components increase the structural complexity of the air supply device, occupy internal space in the air supply duct, and thus affect the air supply efficiency.

[0004] To solve the above problems, it is necessary to provide a smoke exhaust and air supply device with a built-in dust removal function. Utility Model Content

[0005] The purpose of this invention is to provide a smoke-proof and exhaust air supply device with a built-in dust removal function. It has a simple structure and is conducive to ensuring air supply efficiency.

[0006] To achieve the above objectives, this utility model provides a smoke-proof and exhaust air supply device with a built-in dust removal function, including an air supply pipe. An upper and lower mounting rod and a dust filter are fixedly connected to the inner wall of the air supply pipe. A dual-axis motor is fixedly connected to the mounting rod. A fan blade for air supply is fixedly connected to the top of the through-type long shaft of the dual-axis motor. The bottom of the through-type long shaft is connected to a brush plate via a clutch assembly. The clutch assembly is used to realize the transmission connection and interruption between the through-type long shaft and the brush plate. When in the transmission connection state, the dual-axis motor drives the brush plate to rotate to remove dust from the dust filter. A dust collection assembly is provided on the outer wall of the air supply pipe, and the dust collection port of the dust collection assembly is located below the dust filter.

[0007] Preferably, the clutch assembly includes a drive box, a return spring, and a magnet. The drive box is suspended from the bottom surface of the mounting rod and rotatably connected to the mounting rod. The drive box has a first through hole through which the through-type long shaft passes. An electromagnet is fixedly connected to the bottom surface of the drive box. The top end of the return spring is fixedly connected to the bottom surface of the drive box, and the bottom end of the return spring is fixedly connected to the brush plate. The top surface of the brush plate has the magnet, which is positioned opposite to the electromagnet. The bottom surface of the brush plate has bristles. The brush plate has a second through hole through which the through-type long shaft passes. A protrusion is provided on the inner wall of the second through hole, and a protrusion is provided on the outer wall of the bottom end of the through-type long shaft. When the electromagnet is not energized, the protrusion is located above the protrusion. When the electromagnet is energized, the height of the protrusion is between the height of the top end and the height of the bottom end of the protrusion, and the bristles are in contact with the dust filter.

[0008] Preferably, the dust collection assembly includes the dust collection port, a dust collection box is detachably connected to the dust collection port, a dust collection bag is fixedly connected inside the dust collection box, the opening of the dust collection bag is adapted to the dust collection port, an exhaust port is provided at the bottom of the dust collection box, and a fan connected to the vacuum motor is installed at the exhaust port.

[0009] Preferably, the dust collection box includes a detachably connected upper part and a lower part, the dust collection bag is located in the upper part, and the vacuum motor and the fan are both located in the lower part.

[0010] Preferably, the air supply duct includes a bend and a first straight pipe and a second straight pipe detachably connected to both ends of the bend, and the mounting rod, the dust filter, the brush plate and the clutch assembly are all located inside the first straight pipe.

[0011] Therefore, the smoke extraction and ventilation device with self-cleaning function using the above-described structure of this utility model has the following beneficial effects:

[0012] 1. The fan blades and brush plates share a single drive source, reducing the number of drive sources, simplifying the overall structure of the smoke exhaust and air supply device, reducing the space occupied by internal parts of the air supply duct, and thus ensuring air supply efficiency.

[0013] 2. When the electromagnet is not energized, the protrusion is positioned above the convex strip under the action of the return spring. At this time, the brush plate does not rotate, reducing the load on the rotating shaft motor. When the electromagnet is energized, the height of the protrusion is between the top and bottom heights of the convex strip under the action of the magnetic force between the electromagnet and the magnet. At this time, the convex strip on the through-type long shaft can drive the protrusion to rotate, thereby driving the brush plate to rotate, thus cleaning the dust filter screen.

[0014] 3. The dust collection component can collect the dust generated during the cleaning of the dust filter, preventing the dust from sticking to the fan blades and causing adverse effects.

[0015] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an embodiment of the smoke-proof and exhaust ventilation device with self-cleaning function according to the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of a clutch component in an embodiment of a smoke exhaust and ventilation device with self-cleaning function according to the present invention.

[0018] Figure 3 This is a schematic diagram of the structure of a dust collection component in an embodiment of a smoke extraction and ventilation device with self-cleaning function according to the present invention.

[0019] In the diagram: 1. Air supply duct; 101. Bend; 102. First straight duct; 103. Second straight duct; 2. Mounting rod; 3. Dust filter; 4. Dual-axis motor; 5. Through-type long shaft; 6. Fan blade; 7. Clutch assembly; 71. Drive box; 72. Return spring; 73. Magnet block; 8. Brush plate; 9. Dust collection assembly; 91. Dust collection port; 92. Dust collection box; 921. Upper part; 922. Lower part; 93. Dust collection bag; 94. Vacuum motor; 95. Fan; 10. Brush bristles. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Example

[0023] Reference Figures 1-3As shown, this embodiment provides a smoke-proof and exhaust air supply device with a built-in dust removal function, including an air supply pipe 1. An upper and lower mounting rod 2 and a dust filter screen 3 are fixedly connected to the inner wall of the air supply pipe 1. A dual-axis motor 4 is fixedly connected to the mounting rod 2, and a fan blade 6 for air supply is fixedly connected to the top of the through-type long shaft 5 of the dual-axis motor 4. The bottom of the through-type long shaft 5 is connected to a brush plate 8 via a clutch assembly 7. The clutch assembly 7 is used to realize the transmission connection and interruption between the through-type long shaft 5 and the brush plate 8. When in the transmission connection state, the dual-axis motor 4 drives the brush plate 8 to rotate to remove dust from the dust filter screen 3. A dust collection assembly 9 is provided on the outer wall of the air supply pipe 1, and the dust collection port 91 of the dust collection assembly 9 is located below the dust filter screen 3.

[0024] In operation, the clutch assembly 7 interrupts the transmission between the through-type long shaft 5 and the brush plate 8. At this time, the dual-axis motor 4 drives the fan blade 6 to rotate at high speed to deliver air. During the air delivery process, impurities in the airflow are intercepted by the dust filter screen 3. When the dust filter screen 3 needs to be cleaned, the clutch assembly 7 reconnects the transmission between the through-type long shaft 5 and the brush plate 8. At this time, the dual-axis motor 4 drives the fan blade 6 and the brush plate 8 to rotate synchronously at low speed, allowing the brush plate 8 to clean the dust filter screen 3. Simultaneously, the dust collection assembly 9 is activated to collect the dust generated during the cleaning process, preventing the dust from adhering to the fan blade 6 and causing adverse effects. In the entire structure, the fan blade 6 and the brush plate 8 share a single drive source, reducing the number of drive sources, simplifying the overall structure of the smoke exhaust and air supply device, reducing the space occupied by internal parts of the air supply duct 1, and thus ensuring air delivery efficiency.

[0025] In a further preferred embodiment, the clutch assembly 7 includes a drive box 71, a return spring 72, and a magnet 73. The drive box 71 is suspended from the bottom surface of the mounting rod 2 and rotatably connected to it. The drive box 71 has a first through hole for the through-type long shaft 5 to pass through, and an electromagnet is fixedly connected to the bottom surface of the drive box 71. The top end of the return spring 72 is fixedly connected to the bottom surface of the drive box 71, and the bottom end of the return spring 72 is fixedly connected to the brush plate 8. The bottom surface of the brush plate 8 has bristles 10, and the top surface of the brush plate 8 has a magnet 73, which is positioned opposite to the electromagnet. When the electromagnet is energized, it and the magnet 73 have the same polarity, generating a repulsive magnetic force. The brush plate 8 has a second through hole for the through-type long shaft 5 to pass through, and a protrusion is provided on the inner wall of the second through hole. The bottom outer wall of the through-type long shaft 5 is provided with a protrusion. When the electromagnet is not energized, the protrusion is located above the protrusion. When the electromagnet is energized, the height of the protrusion is between the height of the top end and the height of the bottom end of the protrusion, and the bristles 10 are in contact with the dust filter screen 3.

[0026] In use, the transmission connection and interruption between the through-type long shaft 5 and the brush plate 8 are controlled by energizing and de-energizing the electromagnet, as follows: When the electromagnet is de-energized, the brush plate 8 is fixed below the drive box 71 under the action of the spring. At this time, the protrusion is located above the convex strip. Even if the through-type long shaft 5 rotates, the convex strip will not contact the protrusion, and thus will not drive the protrusion and the brush plate 8 to rotate. When the electromagnet is energized, the electromagnet generates a repulsive force on the magnet block 73. At this time, the spring is stretched, the brush plate 8 moves downward, and the height of the protrusion is between the top and bottom heights of the convex strip. The bristles 10 are in contact with the dust filter screen 3. After the through-type long shaft 5 rotates, the long strip on it can contact the protrusion and drive the protrusion to move, thereby driving the brush plate 8 to rotate to clean the dust filter screen 3.

[0027] In a further optimized design, the dust collection assembly 9 includes a dust collection port 91, a dust collection box 92 detachably connected to the dust collection port 91, a dust collection bag 93 fixedly connected inside the dust collection box 92, the opening of the dust collection bag 93 being adapted to the dust collection port 91, an exhaust port being provided at the bottom of the dust collection box 92, and a fan 95 connected to the vacuum motor 94 being installed at the exhaust port.

[0028] When in use, the vacuum cleaner blower drives the fan 95 to rotate, causing the dust generated during the cleaning of the dust filter 3 to move downwards to the dust collection port 91 and then into the dust collection bag 93 for collection, preventing the dust from sticking to the fan blades 6 and causing adverse effects on the fan blades 6.

[0029] In a further preferred embodiment, the dust collection box 92 includes a detachably connected upper part 921 and a lower part 922, with the dust collection bag 93 located inside the upper part 921, and the vacuum motor 94 and the fan 95 both located inside the lower part 922.

[0030] When in use, the lower part 922 can be removed to replace the dust bag 93.

[0031] In a further optimized scheme, the air supply duct 1 includes a bend 101 and a first straight pipe 102 and a second straight pipe 103 that are detachably connected to both ends of the bend 101. The mounting rod 2, dust filter screen 3, brush plate 8 and clutch assembly 7 are all located inside the first straight pipe 102.

[0032] When in use, the first straight tube 102 can be removed to facilitate internal inspection and maintenance.

[0033] Therefore, the present invention provides a smoke-proof and exhaust air supply device with a self-cleaning function using the above-mentioned structure. The structure is simple and helps to ensure air supply efficiency.

[0034] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A smoke extraction and ventilation device with built-in dust removal function, characterized in that: The device includes an air supply duct (1), on which an upper and lower mounting rod (2) and a dust removal filter screen (3) are fixedly connected. A dual-axis motor (4) is fixedly connected to the mounting rod (2). A fan blade (6) for air supply is fixedly connected to the top of the through-type long shaft (5) of the dual-axis motor (4). The bottom of the through-type long shaft (5) is connected to the brush plate (8) through a clutch assembly (7). The clutch assembly (7) is used to realize the transmission connection and transmission interruption between the through-type long shaft (5) and the brush plate (8). When in the transmission connection state, the dual-axis motor (4) drives the brush plate (8) to rotate to remove dust from the dust removal filter screen (3). A dust collection assembly (9) is provided on the outer wall of the air supply duct (1). The dust collection port (91) of the dust collection assembly (9) is located below the dust removal filter screen (3).

2. The smoke-proof air supply device with self-ash removal function according to claim 1, characterized in that: The clutch assembly (7) includes a drive box (71), a return spring (72), and a magnet (73). The drive box (71) is suspended from the bottom surface of the mounting rod (2) and rotatably connected to the mounting rod (2). The drive box (71) has a first through hole for the through-type long shaft (5) to pass through. An electromagnet is fixedly connected to the bottom surface of the drive box (71). The top end of the return spring (72) is fixedly connected to the bottom surface of the drive box (71), and the bottom end of the return spring (72) is fixedly connected to the brush plate (8). The top surface of the brush plate (8) is provided with the... A magnet block (73) is arranged opposite to the electromagnet. The bottom surface of the brush plate (8) is provided with bristles (10). The brush plate (8) is provided with a second through hole for the through-type long shaft (5) to pass through. The inner wall of the second through hole is provided with a protrusion. The outer wall of the bottom end of the through-type long shaft (5) is provided with a ridge. When the electromagnet is not energized, the protrusion is located above the ridge. When the electromagnet is energized, the height of the protrusion is between the top height and the bottom height of the ridge, and the bristles (10) are in contact with the dust filter screen (3).

3. The smoke-proof air supply device with self-ash removal function according to claim 1, characterized in that: The dust collection assembly (9) includes the dust collection port (91), a dust collection box (92) is detachably connected to the dust collection port (91), a dust collection bag (93) is fixedly connected inside the dust collection box (92), the opening of the dust collection bag (93) is adapted to the dust collection port (91), an exhaust port is provided at the bottom of the dust collection box (92), and a fan (95) connected to the vacuum motor (94) is installed at the exhaust port.

4. The smoke-proof air supply device with self-ash removal function according to claim 3, characterized in that: The dust collection box (92) includes a detachably connected upper part (921) and lower part (922), the dust collection bag (93) is located in the upper part (921), and the vacuum motor (94) and the fan (95) are both located in the lower part (922).

5. The smoke-proof air supply device with self-ash removal function according to claim 1, characterized in that: The air supply pipe (1) includes a bend (101) and a first straight pipe (102) and a second straight pipe (103) that are detachably connected to both ends of the bend (101). The mounting rod (2), the dust removal filter (3), the brush plate (8) and the clutch assembly (7) are all located inside the first straight pipe (102).

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