A filter for air pollution control

Abstract

The present invention relates to the field of air pollution control, and specifically discloses a filter for air pollution control, which includes a box body. The inner walls on both sides of the box body are arc-shaped. A collection box is fixedly connected to the bottom end of the box body, and the collection box is communicated with the box body. An air inlet box is fixedly penetrated through the bottom end of the collection box, and the air inlet box penetrates through the collection box and extends into the box body to be communicated with it. A exhaust pipe is fixedly installed at the top end of the box body. Two first rotating shafts are symmetrically arranged in the box body, and the axis lines of the two first rotating shafts are respectively consistent with the axis lines of the arc-shaped surfaces of the inner walls on both sides of the box body. Both ends of the first rotating shaft are rotatably connected to the inner wall of the box body through bearings. Through the setting of the wind baffle in this device, when the polluted air is blown into the box body, the filter screen mounting frame and the filter screen swing back and forth between the two control switches. During the reciprocating swing of the filter screen mounting frame, the rubber wheel drives the belt to reciprocate back and forth. During the belt transmission, the filter screen is swept back and forth by the brush, so as to achieve the purpose of automatically cleaning the filter screen.

Description

Technical Field

[0001] The present invention relates to the field of air pollution control, and particularly to a filter for air pollution control. Background Art

[0002] Air pollution is caused by certain substances entering the atmosphere due to human activities or natural processes, mainly including dust, floating dust, particulate suspensions, etc. When filtering and treating air pollution, an air filter is usually used for filtration. The air filter sucks in the external polluted air through a fan. The polluted air sucked into the air filter is filtered by a filter screen and then discharged. Currently, the common filtering structure uses a filter screen to intercept and filter dust particles in the air. However, due to the single structure and the lack of a cleaning structure for the filter screen, after the filter screen works for a long time, it is very easy for a large amount of dust particles to accumulate and block on the filter screen surface. Even stubborn dust blocks will adhere to the filter screen, causing blockage of the filter screen and resulting in a reduction in the filtration efficiency. Currently, it is necessary to regularly clean the filter screen manually. During the cleaning process, the filter screen needs to be disassembled from the air filter to be cleaned, which is a cumbersome process and time-consuming and laborious.

[0003] To solve the above problems, the present invention proposes a filter for air pollution control. Summary of the Invention

[0004] To solve the above existing problems, the present invention provides a filter for air pollution control.

[0005] The present invention is achieved through the following technical solutions:

[0006] A filter for air pollution control, comprising a box body, a collection box and an exhaust pipe. The inner walls on both sides of the box body are arc-shaped. Two first rotating shafts are symmetrically arranged in the box body. The axis lines of the two first rotating shafts are respectively consistent with the axis lines of the arc-shaped surfaces of the inner walls on both sides of the box body. Both ends of the first rotating shaft are rotatably connected to the inner wall of the box body through bearings. A first sealing plate is attached between the two first rotating shafts. Both ends of the first sealing plate are fixed to the inner wall of the box body. Filter screen mounting frames are respectively fixed to the bottom ends of the two first rotating shafts. The bottom parts of the two filter screen mounting frames are respectively in sliding contact with the inner arc surfaces on both sides of the box body, and the end faces of both ends of the filter screen mounting frame are in sliding contact with the inner wall of the box body. A filter screen is detachably mounted on the filter screen mounting frame. A cleaning structure is mounted on one side of the filter screen mounting frame, and a plate-like component for adjustable ventilation is mounted on the other side of the filter screen mounting frame. The filter screen mounting frame reciprocates within a set angular range in cooperation with the plate-like component for adjustable ventilation under the action of gravity. The cleaning structure performs periodic brushing work on the filter screen during the reciprocating swing of the filter screen mounting frame. Two positioning blocks are respectively fixed on the inner arc surfaces on both sides of the box body. Control switches are respectively mounted on the two positioning blocks. The control switch on the positioning block at the lower end can control the retraction of the telescopic end of the electric telescopic rod, and the control switch on the positioning block at the upper end can control the extension of the telescopic end of the electric telescopic rod.

[0007] Preferably, the collection box is fixed to the bottom end of the box body and is communicated with the box body. An air inlet box is fixedly penetrated through the bottom end of the collection box. The air inlet box penetrates through the collection box and extends into the box body to be communicated with it. The exhaust pipe is fixed to the top end of the box body and is communicated with the box body.

[0008] Preferably, the plate-like component for adjustable ventilation includes mounting plates symmetrically fixed to the top and bottom of the side wall of the filter screen mounting frame. A plurality of second rotating shafts are evenly arranged between the two mounting plates. Both ends of the second rotating shaft respectively penetrate through the two mounting plates and are rotatably connected to the contact points through bearings. A wind blocking plate is fixed to the side of the second rotating shaft facing the filter screen. The wind blocking plate is in contact with the mesh surface of the filter screen. A push rod is fixed to the top end of each second rotating shaft. An electric telescopic rod is hingedly mounted at a top corner on one side of the filter screen mounting frame through a pin shaft. A connecting rod is hingedly connected to the telescopic end of the electric telescopic rod through a pin shaft. Each push rod is hingedly connected to the connecting rod through a pin shaft.

[0009] Preferably, the filter screen mounting frame is composed of a U-shaped frame and a limiting plate. The filter screen is inserted into the U-shaped frame and is in sliding connection with it. Slots for inserting the side frames of the filter screen are opened on the inner walls on both sides of the U-shaped frame. The limiting plate is fixed to the bottom end of the U-shaped frame through bolts. The limiting plate limits and fixes the filter screen in the U-shaped frame. The bottom end of the limiting plate is in sliding contact with the inner arc surface of the box body.

[0010] Preferably, the cleaning structure includes two third rotating shafts. Both ends of each third rotating shaft are rotatably connected to a fixing plate through bearings. The fixing plates are fixedly installed on the side walls of the U-shaped frame. The two third rotating shafts are respectively arranged at the upper end and the lower end of the filter net. A rubber wheel is fixedly sleeved in the middle of the third rotating shaft at the lower end. The rubber wheel is arranged in a fitting manner with the inner arc surface of the box body. The two third rotating shafts are connected by two belts in a transmission manner. The two belts are symmetrically arranged on the left and right sides of the rubber wheel. A plurality of cross plates are fixed on the side of the two belts facing the filter net. Brushes are fixed on the side of the cross plates facing the filter net.

[0011] Preferably, a flow dividing plate is fixed to the bottom end of the first sealing plate.

[0012] Preferably, box doors are hinged on both sides of the collection box.

[0013] Preferably, two operation openings are symmetrically formed in the left and right of the bottom of the box body. A second sealing plate is inserted and installed in each operation opening. A plurality of connecting plates are uniformly fixed to the bottom surface of the second sealing plate. The connecting plates are fixedly connected to the box body through bolts.

[0014] Preferably, the control switch and the electric telescopic rod are both electrically connected to an external power supply through wires. The control switch is electrically connected to the electric telescopic rod through wires.

[0015] Compared with the existing technology, the beneficial effects of the present invention are as follows: Through the setting of the wind baffle in this device, when polluted air is blown into the box body, since most areas of the filter net are blocked by the wind baffle, the ventilation area of the filter net is reduced, and the filter net is blown. At this time, the filter net drives the filter net mounting frame to rotate upward around the first rotating shaft. When the filter net mounting frame touches the control switch above, the telescopic end of the electric telescopic rod extends, causing the second rotating shaft and the wind baffle to rotate 90 degrees. The wind baffle no longer blocks the ventilation of the filter net. At this time, the ventilation area of the filter net increases, and the filter net is no longer blown. The filter net mounting frame and the filter net fall back to their original positions under their own gravity. At this time, the control switch below is pressed by the rubber wheel again, and the telescopic end of the electric telescopic rod retracts, causing the second rotating shaft and the wind baffle to rotate 90 degrees in the reverse direction. At this time, the wind baffle blocks the filter net again to reduce its ventilation area. In this way, the filter net mounting frame and the filter net swing back and forth between the two control switches. During the reciprocating swing of the filter net mounting frame, the rubber wheel drives the belt to reciprocate back and forth. During the belt transmission process, the filter net is swept back and forth by the brush, thereby achieving the purpose of automatically cleaning the filter net. Description of the Drawings

[0016] Figure 1 is a three-dimensional view of the structure of the present invention;

[0017] Figure 2is a cross-sectional view of the structure of the present invention;

[0018] Figure 3 is the structure of the present invention Figure 2 a perspective view of a partial structure therein;

[0019] Figure 4 is the structure of the present invention Figure 3 a rear view thereof;

[0020] Figure 5 is the structure of the present invention Figure 3 a separate schematic diagram of the filter screen mounting frame therein;

[0021] Figure 6 is the structure of the present invention Figure 3 a separate schematic diagram of the filter screen therein.

[0022] In the figure: box body 1, exhaust pipe 2, collection box 3, intake box 4, second sealing plate 5, connecting plate 6, first sealing plate 7, flow dividing plate 8, first rotating shaft 9, filter screen mounting frame 10, U-shaped frame 10-1, limiting plate 11, mounting plate 12, second rotating shaft 13, wind baffle 14, push-pull rod 15, connecting rod 16, electric telescopic rod 17, third rotating shaft 18, fixing plate 19, brush 20, belt 21, rubber wheel 22, cross plate 23, filter screen 24, control switch 25, positioning block 26, box door 27. Detailed implementation manners

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners:

[0024] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown in the figure, a filter for air pollution control includes a box body 1, a collection box 3 and an exhaust pipe 2. The inner walls on both sides of the box body 1 are arc-shaped. Two first rotating shafts 9 are symmetrically arranged in the box body 1. The axis lines of the two first rotating shafts 9 are respectively consistent with the axis lines of the arc-shaped surfaces of the inner walls on both sides of the box body 1. Both ends of the first rotating shaft 9 are rotatably connected to the inner wall of the box body 1 through bearings. A first sealing plate 7 is attached between the two first rotating shafts 9. Both ends of the first sealing plate 7 are fixed to the inner wall of the box body 1. Filter screen mounting frames 10 are respectively fixed at the bottom ends of the two first rotating shafts 9. The bottom parts of the two filter screen mounting frames 10 are respectively in sliding contact with the inner arc surfaces on both sides of the box body 1, and the end faces at both ends of the filter screen mounting frame 10 are in sliding contact with the inner wall of the box body 1. A filter screen 24 is detachably installed on the filter screen mounting frame 10. A cleaning structure is installed on one side of the filter screen mounting frame 10. A plate-shaped component for adjustable ventilation is installed on the other side of the filter screen mounting frame 10. The filter screen mounting frame 10 reciprocally swings within a set angle range through the cooperation of gravity and the plate-shaped component for adjustable ventilation. The cleaning structure performs periodic sweeping work on the filter screen 24 during the reciprocal swinging of the filter screen mounting frame 10. Two positioning blocks 26 are respectively fixed on the inner arc surfaces on both sides of the box body 1. Control switches 25 are respectively installed on the two positioning blocks 26. The control switch 25 on the positioning block 26 at the lower end can control the retraction of the telescopic end of the electric telescopic rod 17, and the control switch 25 on the positioning block 26 at the upper end can control the extension of the telescopic end of the electric telescopic rod 17.

[0025] The collection box 3 is fixed at the bottom end of the box body 1. The collection box 3 is communicated with the box body 1. An air inlet box 4 is fixedly penetrated at the bottom end of the collection box 3. The air inlet box 4 penetrates through the collection box 3 and extends into the box body 1 to be communicated with it. The exhaust pipe 2 is fixed at the top end of the box body 1. The exhaust pipe 2 is communicated with the box body 1.

[0026] The plate-shaped component for adjustable ventilation includes mounting plates 12 symmetrically fixed at the top and bottom of the side wall of the filter screen mounting frame 10. A number of second rotating shafts 13 are evenly arranged between the two mounting plates 12. Both ends of the second rotating shaft 13 respectively penetrate through the two mounting plates 12 and are rotatably connected to the contact points through bearings. A wind baffle 14 is fixed on the side of the second rotating shaft 13 facing the filter screen 24. The wind baffle 14 is in contact with the mesh surface of the filter screen 24. A push rod 15 is fixed at the top end of each second rotating shaft 13. An electric telescopic rod 17 is installed at the top corner on one side of the filter screen mounting frame 10 through a pin shaft hinge. A connecting rod 16 is installed at the telescopic end of the electric telescopic rod 17 through a pin shaft hinge. Each push rod 15 is hinged to the connecting rod 16 through a pin shaft.

[0027] The filter screen mounting frame 10 is composed of a U-shaped frame 10-1 and a limiting plate 11. The filter screen 24 is inserted into the U-shaped frame 10-1 and is slidably connected thereto. Slots for inserting the two side frames of the filter screen 24 are formed on the inner walls of both sides of the U-shaped frame 10-1. The limiting plate 11 is fixed to the bottom end of the U-shaped frame 10-1 by bolts. The limiting plate 11 limits and fixes the filter screen 24 within the U-shaped frame 10-1. The bottom end of the limiting plate 11 is in sliding contact with the inner arc surface of the box body 1.

[0028] The cleaning structure includes two third rotating shafts 18. Fixed plates 19 are rotatably connected to both ends of the third rotating shafts 18 through bearings respectively. The fixed plates 19 are fixedly installed on the side walls of the U-shaped frame 10-1. The two third rotating shafts 18 are respectively arranged at the upper end and the lower end of the filter screen 24. A rubber wheel 22 is fixedly sleeved in the middle of the third rotating shaft 18 at the lower end. The rubber wheel 22 is in contact with the inner arc surface of the box body 1. The two third rotating shafts 18 are drivingly connected by two belts 21. The two belts 21 are symmetrically arranged on both sides of the rubber wheel 22. A plurality of cross plates 23 are fixed to the side of the two belts 21 facing the filter screen 24. A brush 20 is fixed to the side of the cross plate 23 facing the filter screen 24.

[0029] A flow dividing plate 8 is fixed to the bottom end of the first blocking plate 7. The flow dividing plate 8 is used for evenly distributing the air flow to the two filter screen mounting frames 10 on both sides.

[0030] Box doors 27 are hinged on both sides of the collection box 3.

[0031] Two operation openings are symmetrically formed on the left and right of the bottom of the box body 1. A second blocking plate 5 is inserted and installed in each operation opening. A connecting plate 6 is evenly fixed to the bottom surface of the second blocking plate 5. The connecting plate 6 is fixedly connected to the box body 1 by bolts.

[0032] The control switch 25 and the electric telescopic rod 17 are both electrically connected to an external power supply through wires. The control switch 25 is electrically connected to the electric telescopic rod 17 through wires.

[0033] Working principle: When the present invention is in use, the bottom of the air intake box 4 is connected to the air outlet of the fan, so that the polluted air from the outside is discharged into the air intake box 4 by the fan. The air entering the air intake box 4 is evenly blown towards the two filter mounting frames 10 inside the box body 1 under the action of the flow dividing plate 8. After being filtered by the filter screen 24 on the filter mounting frame 10, the air is discharged from the exhaust pipe 2. During this process, since most areas of the filter screen 24 are blocked by the wind baffle 14, the ventilation area of the filter screen 24 is reduced, and the filter screen 24 is blown. At this time, the filter screen 24 drives the filter mounting frame 10 to rotate upward around the first rotating shaft 9. When the filter mounting frame 10 touches the control switch 25 above, the telescopic end of the electric telescopic rod 17 extends. The telescopic end of the electric telescopic rod 17 synchronously pushes a plurality of push rods 15 through the connecting rod 16, causing the second rotating shaft 13 to rotate 90 degrees. At this time, the wind baffle 14 rotates with the second rotating shaft 13, and the wind baffle 14 no longer blocks the ventilation of the filter screen 24. At this time, the ventilation area of the filter screen 24 increases, the filter screen 24 is no longer blown, and the filter mounting frame 10 and the filter screen 24 fall back to their original positions under their own gravity. At this time, the control switch 25 below is pressed by the rubber wheel 22, and the telescopic end of the electric telescopic rod 17 retracts. When the telescopic end of the electric telescopic rod 17 retracts, it pulls the push rod 15 through the connecting rod 16, causing the second rotating shaft 13 and the wind baffle 14 to rotate 90 degrees in the reverse direction. At this time, the wind baffle 14 blocks the filter screen 24 again to make its ventilation area smaller. In this way, the filter mounting frame 10 and the filter screen 24 swing back and forth between the two control switches 25. During the reciprocating swing of the filter mounting frame 10, the rubber wheel 22 drives the belt 21 to reciprocate back and forth. During the transmission of the belt 21, the filter screen 24 is swept back and forth by the brush 20, thereby achieving the purpose of automatically cleaning the filter screen 24. The particulate matter swept off falls into the collection box 3, and the particulate matter falling into the collection box 3 can be cleaned through the box door 27. When the filter screen 24 needs to be replaced, stop the operation of the fan, then open the second sealing plate 5, remove the limiting plate 11 from the bottom of the U-shaped frame 10-1 through the operation port, then remove the filter screen 24 inside the U-shaped frame 10-1 through the operation port, insert the new filter screen 24 into the U-shaped frame 10-1 through the operation port and fix it inside the U-shaped frame 10-1 through the limiting plate 11, and finally fix and insert the second sealing plate 5 into the operation port to complete the replacement process of the filter screen 24. Therefore, this device also has the advantage of convenient replacement of the filter screen 24.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A filter for air pollution control, comprising a box body (1), a collection box (3) and an exhaust pipe (2), characterized in that; The inner walls on both sides of the box body (1) are arc-shaped. Two first rotating shafts (9) are symmetrically arranged inside the box body (1). The axis lines of the two first rotating shafts (9) are respectively consistent with the axis lines of the arc-shaped surfaces of the inner walls on both sides of the box body (1). Both ends of the first rotating shaft (9) are rotationally connected to the inner wall of the box body (1) through bearings. A first sealing plate (7) is attached between the two first rotating shafts (9). Both ends of the first sealing plate (7) are fixed to the inner wall of the box body (1). Filter screen mounting frames (10) are respectively fixed to the bottom ends of the two first rotating shafts (9). The bottom parts of the two filter screen mounting frames (10) are respectively in sliding contact with the inner arc surfaces on both sides of the box body (1), and the end faces of both ends of the filter screen mounting frame (10) are in sliding contact with the inner wall of the box body (1). A filter screen (24) is detachably mounted on the filter screen mounting frame (10). A cleaning structure is mounted on one side of the filter screen mounting frame (10), and a plate-shaped component for adjustable ventilation is mounted on the other side of the filter screen mounting frame (10). The filter screen mounting frame (10) reciprocally swings within a set angular range through the cooperation of gravity and the plate-shaped component for adjustable ventilation. The cleaning structure periodically sweeps the filter screen (24) during the reciprocal swing of the filter screen mounting frame (10). The plate-shaped component for adjustable ventilation includes mounting plates (12) symmetrically fixed to the top and bottom of the side wall of the filter screen mounting frame (10). A number of second rotating shafts (13) are evenly arranged between the two mounting plates (12). Both ends of the second rotating shaft (13) penetrate through the two mounting plates (12) and are rotationally connected to the contact points through bearings. A wind deflector (14) is fixed to the side of the second rotating shaft (13) facing the filter screen (24). The wind deflector (14) is in contact with the mesh surface of the filter screen (24). A push-pull rod (15) is fixed to the top end of each second rotating shaft (13). An electric telescopic rod (17) is hinged and mounted at the apex of one side of the filter screen mounting frame (10) through a pin shaft. A connecting rod (16) is hinged to the telescopic end of the electric telescopic rod (17) through a pin shaft. Each push-pull rod (15) is hinged to the connecting rod (16) through a pin shaft. Two positioning blocks (26) are respectively fixed on the inner arc surfaces on both sides of the box body (1). The filter screen mounting frame (10) swings between the two positioning blocks (26). Control switches (25) are respectively mounted on the two positioning blocks (26). The control switch (25) on the lower positioning block (26) can control the telescopic end of the electric telescopic rod (17) to retract, and the control switch (25) on the upper positioning block (26) can control the telescopic end of the electric telescopic rod (17) to extend. The cleaning structure includes two third rotating shafts (18). The two third rotating shafts (18) are respectively arranged at the upper end and the lower end of the filter screen (24). A rubber wheel (22) is fixedly sleeved on the middle part of the third rotating shaft (18) at the lower end. The rubber wheel (22) is in contact with the inner arc surface of the box body (1).The two third rotating shafts (18) are drivingly connected through two belts (21). A plurality of cross plates (23) are fixed to one side of the two belts (21) facing the filter screen (24), and a brush (20) is fixed to one side of the cross plate (23) facing the filter screen (24).

2. The filter for air pollution control according to claim 1, characterized in that: The collection box (3) is fixed to the bottom end of the box body (1). The collection box (3) is communicated with the box body (1). The bottom end of the collection box (3) is fixedly penetrated with an air inlet box (4). The air inlet box (4) penetrates through the collection box (3) and extends into the box body (1) to be communicated with it. The exhaust pipe (2) is fixed to the top end of the box body (1). The exhaust pipe (2) is communicated with the box body (1).

3. The filter for air pollution control according to claim 1, characterized in that: The filter screen mounting frame (10) is composed of a U-shaped frame (10-1) and a limiting plate (11). The filter screen (24) is inserted into the U-shaped frame (10-1) and is slidably connected with it. Slots for inserting the two side frames of the filter screen (24) are formed on the inner walls of both sides of the U-shaped frame (10-1). The limiting plate (11) is fixedly connected to the bottom end of the U-shaped frame (10-1) by bolts. The limiting plate (11) limits and fixes the filter screen (24) in the U-shaped frame (10-1). The bottom end of the limiting plate (11) is in sliding fit with the inner arc surface of the box body (1).

4. The air pollution control filter according to claim 3, characterized in that: Both ends of the third rotating shaft (18) are rotatably connected with fixing plates (19) through bearings. The fixing plates (19) are fixedly installed on the side wall of the U-shaped frame (10-1). The two belts (21) are symmetrically arranged on both sides of the rubber wheel (22).

5. The filter for air pollution control according to claim 1, wherein: A flow dividing plate (8) is fixedly connected to the bottom end of the first sealing plate (7).

6. The air pollution control filter according to claim 2, characterized in that: Door panels (27) are hinged on both sides of the collection box (3).

7. A filter for air pollution control according to claim 1, characterized in that: Two operation openings are symmetrically formed on the left and right of the bottom of the box body (1). A second sealing plate (5) is inserted and installed in each operation opening. Connecting plates (6) are evenly fixed to the bottom surface of the second sealing plate (5). The connecting plates (6) are fixedly connected to the box body (1) by bolts.

8. A filter for air pollution control according to claim 1, characterized in that: The control switch (25) and the electric telescopic rod (17) are both electrically connected to an external power supply through wires. The control switch (25) is electrically connected to the electric telescopic rod (17) through wires.

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