Building exhaust filtering device

Abstract

The utility model discloses a building exhaust filtering device, which relates to the field of buildings and comprises an exhaust pipe, a filtering mechanism is mounted in the exhaust pipe, a cleaning mechanism is mounted at the bottom of the exhaust pipe, the filtering mechanism comprises an air inlet box, the air inlet box is fixedly mounted at the outer part of the exhaust pipe close to the bottom end, and the cleaning mechanism is mounted at the bottom of the exhaust pipe. A draught fan is installed at the position, close to the rear end, of the interior of the air inlet box, a plurality of grid plates are fixedly installed at the positions, close to the front end, of the interior of the air inlet box, guide rods are fixedly installed at the positions, close to the upper end and the lower end, of the front portion of the air inlet box, and push plates are movably installed on the peripheries of the two guide rods. A cleaning block is mounted at the rear part of the push plate and between every two grid plates; according to the air purifier, dust in the air can be conveniently filtered, the adhered dust can be conveniently cleaned, meanwhile, the filtered dust in the filter cartridge can be conveniently scraped and cleaned, the dust can be discharged during cleaning, and the operation of internal disassembly for cleaning is reduced.

Description

Technical Field

[0001] The utility model relates to the field of construction, in particular to a building exhaust air filtering device. Background Art

[0002] Building exhaust filtration is to filter and clean the exhaust air in the building, timely remove pollutants, harmful gases, waste heat and moisture in the indoor air, maintain the indoor air quality, and provide a clean indoor environment for people living or working in the building. This solution specifically involves a building exhaust filtration device;

[0003] When using existing building exhaust filtration devices, dust particles in the air easily adhere to the grid plate and need to be disassembled for cleaning, which is not convenient for quick cleaning. In addition, the dust filtered in the filter cartridge needs to be disassembled and cleaned regularly, which is not convenient for discharging the dust while cleaning, which has a certain impact on actual use. Utility Model Content

[0004] The main purpose of the utility model is to provide a building exhaust air filtering device, which can effectively solve the technical problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A building exhaust filtration device comprises an exhaust duct, a filtering mechanism is installed inside the exhaust duct, a cleaning mechanism is installed at the bottom of the exhaust duct, the filtering mechanism comprises an air inlet box, the air inlet box is fixedly installed on the outside of the exhaust duct near the bottom end, a fan is installed inside the air inlet box near the rear end, a plurality of grilles are fixedly installed inside the air inlet box near the front end, guide rods are fixedly installed at the front of the air inlet box near the upper and lower ends, push plates are movably installed on the periphery of two guide rods, cleaning blocks are installed at the rear of the push plates and between each two grilles, a plurality of cleaning holes are opened on both sides of the air inlet box, a first drain pipe is installed on both sides of the air inlet box, and a filter cartridge is fixedly installed inside the exhaust duct near the bottom end.

[0007] As a further solution of the utility model, a communication groove is opened on the periphery of the filter cartridge near the bottom end, and the filter cartridge and the air inlet box are connected to each other.

[0008] As a further solution of the utility model, the push plate is sleeved on the periphery of the guide rod in a sliding arrangement, and the size of the cleaning block matches the aperture of the cleaning hole.

[0009] As a further solution of the utility model, the two first sewage pipes are symmetrically installed on both sides of the air inlet box, and the bottom ends of the first sewage pipes are hollow.

[0010] As a further solution of the utility model, the cleaning mechanism includes a second sewage pipe, which is installed at the bottom of the exhaust pipe and the air inlet box, and a spiral blade is movably installed inside the second sewage pipe. A sealing cover is connected to the front end of the outside of the second sewage pipe, and a motor is installed at the rear end of the bottom of the second sewage pipe. A rotating rod is installed at the top of the output shaft of the motor and inside the filter cartridge, and bevel teeth are installed on the periphery of the rotating rod near the bottom end and the rear end of the spiral blade, and two sets of cleaning brushes are installed on the periphery of the rotating rod and inside the filter cartridge.

[0011] As a further solution of the utility model, the helical teeth in the rotating rod are meshedly connected with the helical teeth in the spiral blades, and the sealing cover is threadedly connected with the outer periphery of the second sewage pipe near the front sewage outlet.

[0012] As a further solution of the utility model, the number of the cleaning brushes in each group is two, and the cleaning brushes are located on the inner wall of the filter cartridge and rotate around.

[0013] The beneficial effects of the utility model are as follows:

[0014] By setting up a filtering mechanism, the fan sucks the gas in the building, and the dust in the air is filtered through the filter cartridge. The grid plate prevents large debris from entering. By pushing the push plate, the cleaning block slides between every two grid plates, which is convenient for cleaning the dust adhering to the surface of the grid plate and discharging it after cleaning.

[0015] By setting up a cleaning mechanism, the rotating rod drives two sets of cleaning brushes to rotate. The rotation of the cleaning brush facilitates the scraping and cleaning of filtered dust. Under the meshing action of the helical teeth, the rotating rod drives the spiral blades to rotate, which can discharge the dust while cleaning it, reducing the operation of internal disassembly for cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a building exhaust air filtering device of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall internal structure of a building exhaust air filtering device of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of a filter mechanism in a building exhaust air filtering device of the utility model;

[0019] Figure 4 The utility model is a structural schematic diagram of a cleaning mechanism in a building exhaust air filtering device.

[0020] In the figure: 1. exhaust duct; 2. filtering mechanism; 3. cleaning mechanism; 4. air inlet box; 5. fan; 6. grid plate; 7. guide rod; 8. push plate; 9. cleaning block; 10. cleaning hole; 11. first sewage pipe; 12. filter cartridge; 13. second sewage pipe; 14. spiral blade; 15. sealing cover; 16. motor; 17. rotating rod; 18. bevel teeth; 19. cleaning brush. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1-4 As shown, a building exhaust filtering device comprises an exhaust duct 1, a filtering mechanism 2 is installed inside the exhaust duct 1, a cleaning mechanism 3 is installed at the bottom of the exhaust duct 1, the filtering mechanism 2 comprises an air inlet box 4, the air inlet box 4 is fixedly installed on the outside of the exhaust duct 1 near the bottom end, a fan 5 is installed inside the air inlet box 4 near the rear end, a plurality of grid plates 6 are fixedly installed inside the air inlet box 4 near the front end, guide rods 7 are fixedly installed at the upper and lower ends of the front part of the air inlet box 4, push plates 8 are movably installed on the periphery of the two guide rods 7, cleaning blocks 9 are installed at the rear of the push plates 8 and between every two grid plates 6, a plurality of cleaning holes 10 are opened on both sides of the air inlet box 4, a first sewage pipe 11 is installed on both sides of the air inlet box 4, and a filter cartridge 12 is fixedly installed inside the exhaust duct 1 near the bottom end.

[0023] In this embodiment, a connecting groove is opened on the outer periphery of the filter cartridge 12 near the bottom end, and the filter cartridge 12 and the air inlet box 4 are connected to each other. External air is sucked into the air inlet box 4 through the fan 5, enters the filter cartridge 12 through the connecting groove of the filter cartridge 12, and dust in the air is filtered and discharged into the exhaust pipe 1 for discharge.

[0024] In this embodiment, the push plate 8 is sleeved on the outer periphery of the guide rod 7 and is slidably arranged. The size of the cleaning block 9 matches the aperture of the cleaning hole 10. By sliding the push plate 8, the cleaning block 9 cleans the dust adhered to the surface of the grid plate 6 and pushes the cleaned dust into the cleaning hole 10.

[0025] In this embodiment, the two first sewage pipes 11 are symmetrically installed on both sides of the air inlet box 4. The bottom end of the first sewage pipe 11 is hollow. The cleaned dust enters the first sewage pipe 11 through the cleaning hole 10, and the discharged dust is collected at the bottom of the two first sewage pipes 11.

[0026] In this embodiment, the cleaning mechanism 3 includes a second sewage pipe 13, which is installed at the bottom of the exhaust pipe 1 and the air inlet box 4. A spiral blade 14 is movably installed inside the second sewage pipe 13. A sealing cover 15 is connected to the front end of the outside of the second sewage pipe 13. A motor 16 is installed at the rear end of the bottom of the second sewage pipe 13. A rotating rod 17 is installed at the top of the output shaft of the motor 16 and inside the filter cartridge 12. Bevel teeth 18 are installed on the periphery of the rotating rod 17 near the bottom end and the rear end of the spiral blade 14. Two groups of cleaning brushes 19 are installed on the periphery of the rotating rod 17 and inside the filter cartridge 12. The dust filtered by the filter cartridge 12 is cleaned by the cleaning brush 19, and the cleaned and fallen dust is discharged through the spiral blade 14, which is convenient for cleaning dust.

[0027] In this embodiment, the bevel teeth 18 in the rotating rod 17 are meshedly connected with the bevel teeth 18 in the spiral blade 14, and the sealing cover 15 is threadedly connected to the outer periphery of the second sewage pipe 13 near the front sewage outlet. The meshing of the bevel teeth 18 allows the rotating rod 17 to rotate while driving the spiral blade 14 to rotate, so that dust can be discharged while being cleaned.

[0028] In this embodiment, there are two cleaning brushes 19 in each group. The cleaning brushes 19 are located on the inner wall of the filter cartridge 12 and rotate around. The rotating rod 17 drives the two groups of cleaning brushes 19 located on the inner wall of the filter cartridge 12 to rotate and scrape and clean the filtered dust.

[0029] It should be noted that the utility model is a building exhaust filter device. When in use, by starting the fan 5, the gas in the building is sucked into the air box 4, and enters the filter cartridge 12 through the connecting groove of the filter cartridge 12 to filter the dust in the air. The filtered gas enters the exhaust pipe 1 for discharge. During the exhaust process, the grid plate 6 is used to prevent large foreign debris from entering. Since the dust in the gas is easy to adhere to the surface of the grid plate 6, when regular cleaning is performed, the push plate 8 is pushed to make the cleaning block 9 slide between every two grid plates 6 to scrape and clean the dust. The dust after scraping and cleaning The dust enters the cleaning hole 10, and enters the first sewage pipe 11 through the cleaning hole 10 to be discharged. A receiving container is placed at the bottom of the two first sewage pipes 11 to receive the discharged dust. When the inner wall of the filter cartridge 12 filters a lot of dust and needs to be cleaned, the motor 16 is started, and the rotating rod 17 drives the spiral blade 14 to rotate under the meshing action of the bevel teeth 18. The rotating rod 17 drives the two sets of cleaning brushes 19 to rotate, and the dust filtered on the inner wall of the filter cartridge 12 is scraped and cleaned. The cleaned dust is transported to the sewage outlet at the front end of the second sewage pipe 13 through the spiral blade 14 for discharge.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A building exhaust air filtering device, comprising an exhaust pipe (1), a filtering mechanism (2) installed inside the exhaust pipe (1), and a cleaning mechanism (3) installed at the bottom of the exhaust pipe (1), characterized in that: The filtering mechanism (2) comprises an air inlet box (4), the air inlet box (4) being fixedly mounted on the outside of the exhaust pipe (1) near the bottom end, a fan (5) being mounted on the inside of the air inlet box (4) near the rear end, a plurality of grid plates (6) being fixedly mounted on the inside of the air inlet box (4) near the front end, guide rods (7) being fixedly mounted on the front of the air inlet box (4) near the upper and lower ends, push plates (8) being movably mounted on the peripheries of the two guide rods (7), a cleaning block (9) being mounted on the rear of the push plates (8) and between each two grid plates (6), a plurality of cleaning holes (10) being opened on both sides of the air inlet box (4), a first sewage discharge pipe (11) being mounted on both sides of the air inlet box (4), and a filter cartridge (12) being fixedly mounted on the inside of the exhaust pipe (1) near the bottom end.

2. A building exhaust air filtration device according to claim 1, characterized in that: A communication groove is provided on the periphery of the filter cartridge (12) near the bottom end, and the filter cartridge (12) and the air inlet box (4) are arranged to be in communication with each other.

3. A building exhaust air filtration device according to claim 1, characterized in that: The push plate (8) is sleeved on the outer periphery of the guide rod (7) in a sliding arrangement, and the size of the cleaning block (9) matches the aperture of the cleaning hole (10).

4. A building exhaust air filtration device according to claim 1, characterized in that: The two first sewage pipes (11) are symmetrically installed on both sides of the air inlet box (4), and the bottom ends of the first sewage pipes (11) are hollow.

5. The building exhaust air filtering device according to claim 1, characterized in that: The cleaning mechanism (3) comprises a second sewage discharge pipe (13), the second sewage discharge pipe (13) being installed at the bottom of the exhaust pipe (1) and the air inlet box (4), a spiral blade (14) being movably installed inside the second sewage discharge pipe (13), a sealing cover (15) being connected to the front end of the outside of the second sewage discharge pipe (13), a motor (16) being installed at the rear end of the bottom of the second sewage discharge pipe (13), a rotating rod (17) being installed at the top end of the output shaft of the motor (16) and located inside the filter cartridge (12), bevel teeth (18) being installed at the outer periphery of the rotating rod (17) near the bottom end and at the rear end of the spiral blade (14), and two sets of cleaning brushes (19) being installed at the outer periphery of the rotating rod (17) and located inside the filter cartridge (12).

6. A building exhaust air filtering device according to claim 5, characterized in that: The bevel teeth (18) in the rotating rod (17) and the bevel teeth (18) in the spiral blade (14) are meshingly connected, and the sealing cover (15) is threadedly connected to the outer periphery of the second sewage discharge pipe (13) near the front sewage discharge port.

7. A building exhaust air filtering device according to claim 5, characterized in that: The number of cleaning brushes (19) in each group is two, and the cleaning brushes (19) are located on the inner wall of the filter cartridge (12) and rotate in a circular manner.

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