Environmental protection air purification filter device

Abstract

The present invention belongs to the technical field of purification equipment, and discloses an environmental protection air purification and filtering device, the technical key points of which are: comprising a cylinder, two groups of cylinder bottom ends are commonly fixedly mounted with a bottom cylinder, a water storage tank is fixedly mounted above the two groups of cylinders, a column extending into the water storage tank is rotatably mounted in the bottom cylinder, a plurality of groups of filter screens distributed in parallel are arranged in the inner cavity of the cylinder, a central axis is rotatably mounted on the axial position of the inner cavity of the cylinder through a bracket, a humidifying mechanism is arranged in the cylinder, the humidifying mechanism includes a spraying assembly and a driving assembly, a dust removal mechanism cooperating with the filter screen is arranged in the inner cavity of the cylinder, the dust removal mechanism includes a cleaning assembly and a guide assembly, a positioning mechanism is arranged in the cylinder, the positioning mechanism includes a limiting assembly and a telescopic assembly, which solves the problem that the current purification equipment has a single filtering mode and cannot automatically clean the dust and impurities attached to the surface of the filter screen.

Description

Technical Field

[0001] The invention relates to the technical field of purification equipment, in particular to an environmental protection air purification and filtering device. Background Art

[0002] With the continuous development of our society, people pay more and more attention to the health and quality of life. Now the air pollution in our country is quite serious, so air purification is also getting more and more attention. People realize the impact of air quality on people's health, so now there are various types of air purification devices on the market.

[0003] At present, dust impurities in the air are mainly filtered through filters. During the purification process, dust impurities in the air will adhere to the surface of the filter. The existing purification equipment has a single filtering method and is unable to clean the dust impurities attached to the surface of the filter. The filter needs to be cleaned and replaced manually regularly, and the use effect is poor. Summary of the invention

[0004] The purpose of the present invention is to provide an environmental protection air purification and filtering device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: An environmental protection air purification filter device comprises a cylinder, wherein the cylinder is provided with two groups and connected to form a V-shaped structure, a support plate is fixedly installed on the bottom wall of the cylinder, the top of one group of cylinders is set as an air inlet, and the top of the other group of cylinders is set as an air outlet, the air inlet is connected to an external exhaust device, and a bottom cylinder is fixedly installed at the bottom ends of the two groups of cylinders, the bottom cylinder is connected to the cylinder, and a water storage tank is fixedly installed above the two groups of cylinders, a column extending into the water storage tank is rotatably installed in the bottom cylinder, the bottom end of the column extends to the bottom of the bottom cylinder and is connected to a motor, a plurality of groups of filter screens distributed in parallel are arranged in the inner cavity of the cylinder, a central axis is rotatably installed at the axis position of the inner cavity of the cylinder through a bracket, and the central axis passes through the center of the filter screen, a humidifying mechanism is arranged in the cylinder, and the humidifying mechanism includes a spray assembly and a driving assembly, the spray assembly is located in the cylinder and connected to the water storage tank, the driving assembly is located in the water storage tank, and the driving assembly cooperates with the spray assembly The inner cavity of the cylinder is provided with a dust removal mechanism which cooperates with the filter screen plate. The dust removal mechanism includes a cleaning component and a guide component. The cleaning component is located on the surface of the central axis and on the outer side of the filter screen plate. When the column rotates, the cleaning component controls the central axis to rotate synchronously and further cleans the surface of the filter screen plate. The guide component is connected to the bottom cylinder, and the guide component is used to discharge impurities cleaned from the surface of the filter screen plate to the outside of the cylinder and the bottom cylinder. A positioning mechanism which cooperates with the filter screen plate is provided in the cylinder. The positioning mechanism includes a limiting component and a telescopic component. The limiting component is located on the inner side wall of the cylinder and is connected to the filter screen plate. The limiting component is used to support and position the filter screen plate in the inner cavity of the cylinder. The telescopic component is located on the surface of the central axis and is connected to the filter screen plate. When the central axis rotates, the telescopic component controls the filter screen plate to reciprocate along the axis direction of the cylinder by cooperating with the limiting component.

[0006] As a further solution of the present invention: the spray assembly includes a spray pipe fixedly installed on the top wall of the cylinder body, a plurality of atomizing nozzles are arranged on the surface of the spray pipe, a notch that cooperates with the spray pipe is opened on the surface of the filter screen plate, water filling cylinders are fixedly installed on the two side walls opposite to each other of the water storage tank, a water guide pipe is fixedly installed on one end of the water filling cylinder away from the water storage tank, and the end of the water guide pipe away from the water filling cylinder extends into the cylinder body and is connected to the spray pipe.

[0007] As a further solution of the present invention: the driving assembly includes a horizontal column slidably installed in the inner cavity of the water tank along the horizontal direction, the bottom wall of the horizontal column is provided with a long guide groove, the top of the column is fixedly provided with a control panel located below the horizontal column, a guide column extending into the guide groove is provided at a position deviating from the center of the circle on the surface of the control panel, connecting rods are fixedly installed on the two side walls opposite to each other, and a piston disk that cooperates with the water filling cylinder is fixedly installed on the end of the connecting rod away from the horizontal column.

[0008] As a further solution of the present invention: the cleaning assembly includes a cleaning rod fixedly mounted on the surface of the central axis and located outside the filter screen, the surface of the cleaning rod is provided with multiple groups of brushes that fit the surface of the filter screen, a driven beveled gear plate is fixedly mounted on the bottom end of the central axis, and an active beveled gear plate meshingly connected to the driven beveled gear plate is fixedly mounted on the surface of the column.

[0009] As a further solution of the present invention: the drainage assembly includes a drainage port opened on the bottom wall of the filter screen plate, a drainage pipe is arranged on the side wall of the bottom cylinder, and a control valve is arranged on the surface of the drainage pipe.

[0010] As a further solution of the present invention: the limiting assembly includes multiple groups of annularly distributed slide grooves opened on the inner wall of the cylinder, a sliding block is slidably installed in the slide groove, an extrusion spring connected to the sliding block is fixedly installed in the slide groove, and multiple groups of sliding blocks are connected to the filter screen plate.

[0011] As a further solution of the present invention: the telescopic assembly includes a plurality of groups of first protrusions distributed in an annular shape and fixedly mounted on the surface of the filter screen plate, a side plate is fixedly mounted on the surface of the central axis, and a plurality of groups of second protrusions distributed in an annular shape and cooperating with the first protrusions are fixedly mounted on the surface of the side plate.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting a humidifying mechanism composed of a spray component and a driving component to cooperate with the filter screen, the air can be double filtered and impurities can be removed, effectively improving the filtering effect of dust impurities in the air; by setting a cleaning component to cooperate with the guide assembly, the dust impurities attached to the surface of the filter screen can be automatically cleaned, so that the filter screen can continuously maintain a high-efficiency filtering effect; while cleaning the dust impurities attached to the surface of the filter screen, by setting a telescopic component to cooperate with the limit component, the filter screen can be controlled to move back and forth in a small range, and then the dust impurities filled in the mesh of the filter screen can be cleaned, effectively improving the cleaning effect of the filter screen. The problem that the current purification equipment has a single filtering method and cannot automatically clean the dust impurities attached to the surface of the filter screen is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of an environmental protection air purification and filtering device provided in an embodiment of the present invention.

[0014] Figure 2 This is a schematic diagram of the main structure of an environmental protection air purification and filtering device provided in an embodiment of the present invention.

[0015] Figure 3The present invention is a schematic diagram of a filter screen plate and its connection structure in an environmental protection air purification filter device provided in an embodiment of the present invention.

[0016] Figure 4 for Figure 3 Schematic diagram of the enlarged structure of A.

[0017] Figure 5 for Figure 2 Schematic diagram of the enlarged structure of B.

[0018] Figure 6 for Figure 2 Schematic diagram of the enlarged structure of C in the figure.

[0019] Figure 7 The present invention is a schematic diagram of a control panel and its connection structure in an environmental protection air purification and filtering device provided in an embodiment of the present invention.

[0020] Among them: 1- cylinder, 11- air inlet, 12- exhaust outlet, 2- support plate, 3- bottom cylinder, 4- water tank, 5- column, 51- motor, 6- filter screen, 7- center axis, 8- dust removal mechanism, 81- cleaning component, 811- cleaning rod, 812- brush, 813- driven bevel gear plate, 814- active bevel gear plate, 82- guide assembly, 821- guide port, 822- guide pipe, 823- control valve, 9- positioning mechanism, 91- limit assembly, 9 11-slide groove, 912-sliding block, 913-extrusion spring, 92-telescopic component, 921-first protrusion, 922-side plate, 923-second protrusion, 10-humidification mechanism, 101-spray component, 1011-spray pipe, 1012-water filling cylinder, 1013-water guide pipe, 102-driving component, 1021-cross column, 1022-guide groove, 1023-control panel, 1024-guide column, 1025-connecting rod, 1026-piston disk. DETAILED DESCRIPTION

[0021] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0022] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0023] like Figure 1 , Figure 2 , Figure 3As shown, it is a structural diagram of an environmental protection air purification and filtering device provided by an embodiment of the present invention, comprising a cylinder 1, wherein the cylinder 1 is provided with two groups and connected to form a V-shaped structure, a support plate 2 is fixedly installed on the bottom wall of the cylinder 1, the top of one group of cylinders 1 is provided with an air inlet 11, and the top of the other group of cylinders 1 is provided with an air outlet 12, the air inlet 11 is connected to an external exhaust device, a bottom cylinder 3 is fixedly installed at the bottom ends of the two groups of cylinders 1, the bottom cylinder 3 is connected to the cylinder 1, a water storage tank 4 is fixedly installed above the two groups of cylinders 1, and a water storage tank 4 extending to the water storage tank 4 is rotatably installed in the bottom cylinder 3. The column 5 in the water tank 4 has a bottom end extending to the bottom of the bottom cylinder 3 and connected to a motor 51. The inner cavity of the cylinder 1 is provided with a plurality of sets of filter screens 6 distributed in parallel. The inner axis of the cylinder 1 is rotatably mounted with a central axis 7 through a bracket. The central axis 7 passes through the center of the filter screen 6. A humidifying mechanism 10 is provided in the cylinder 1. The humidifying mechanism 10 includes a spray assembly 101 and a drive assembly 102. The spray assembly 101 is located in the cylinder 1 and is connected to the water storage tank 4. The drive assembly 102 is located in the water storage tank 4. The drive assembly 102 passes through the cylinder 1. The inner cavity of the cylinder 1 is atomized and humidified by cooperating with the spray component 101. The inner cavity of the cylinder 1 is provided with a dust removal mechanism 8 that cooperates with the filter screen plate 6. The dust removal mechanism 8 includes a cleaning component 81 and a guide assembly 82. The cleaning component 81 is located on the surface of the central axis 7 and is located outside the filter screen plate 6. When the column 5 rotates, the cleaning component 81 controls the central axis 7 to rotate synchronously and further cleans the surface of the filter screen plate 6. The guide assembly 82 is connected to the bottom cylinder 3, and the guide assembly 82 is used to discharge the impurities cleaned from the surface of the filter screen plate 6 to Outside the cylinder 1 and the bottom cylinder 3, a positioning mechanism 9 that cooperates with the filter screen plate 6 is arranged inside the cylinder 1, and the positioning mechanism 9 includes a limit assembly 91 and a telescopic assembly 92. The limit assembly 91 is located on the inner wall of the cylinder 1 and is connected to the filter screen plate 6. The limit assembly 91 is used to support and position the filter screen plate 6 in the inner cavity of the cylinder 1. The telescopic assembly 92 is located on the surface of the central axis 7 and is connected to the filter screen plate 6. When the central axis 7 rotates, the telescopic assembly 92 controls the filter screen plate 6 to reciprocate along the axial direction of the cylinder 1 by cooperating with the limit assembly 91.

[0024] When in use, the exhaust device conveys air into the cylinder 1. When the air flows in the inner cavities of the two groups of cylinders 1, it will pass through the mesh on the surface of the multiple groups of filter plates 6. The filter plates 6 can filter dust impurities in the air, and the dust impurities will adhere to the surface of the filter plates 6. When filtering the air, the motor 51 drives the column 5 to rotate, and the driving component 102 cooperates with the spray component 101 to automatically perform atomization and humidification treatment on the inner cavity of the cylinder 1. After humidifying the air in the inner cavity of the cylinder 1, the filtering effect of the filter plates 6 on dust impurities can be further improved. While humidifying the inner cavity of the cylinder 1, the cleaning component 81 controls the central axis 7 to rotate in the inner cavity of the cylinder 1, and can further clean the impurities attached to the surface of the filter plates 6. The guide assembly 82 can transfer the humidified dust impurities cleaned from the surface of the filter plates 6 to the bottom cylinder 3. After the dust impurities in the bottom cylinder 3 accumulate to a certain extent, the guide assembly 82 can conveniently remove the dust impurities from the bottom cylinder 3. While the cleaning component 81 cleans the dust and impurities attached to the surface of the filter screen plate 6, the telescopic component 92 cooperates with the limit component 91 to control the filter screen plate 6 to move back and forth in a small range along the axial direction of the cylinder 1. When the filter screen plate 6 moves back and forth, the cleaning component 81 can fully clean the dust and impurities filled in the mesh of the filter screen plate 6, thereby further improving the cleaning effect of the filter screen plate 6.

[0025] like Figure 1 , Figure 2 , Figure 3 As shown, as a preferred embodiment of the present invention, the spray assembly 101 includes a spray pipe 1011 fixedly installed on the top wall of the cylinder 1, a plurality of atomizing nozzles are arranged on the surface of the spray pipe 1011, a notch which cooperates with the spray pipe 1011 is opened on the surface of the filter screen plate 6, water filling cylinders 1012 are fixedly installed on the two side walls opposite to each other of the water storage tank 4, a water guide pipe 1013 is fixedly installed on one end of the water filling cylinder 1012 away from the water storage tank 4, and the end of the water guide pipe 1013 away from the water filling cylinder 1012 extends into the cylinder 1 and is connected to the spray pipe 1011.

[0026] The inner cavity of the water tank 4 stores an appropriate amount of clean water, the motor 51 drives the column 5 to rotate, and the driving component 102 delivers an appropriate amount of water pressure in the water tank 4 to the water filling cylinder 1012. The water filling cylinder 1012 and the water guide pipe 1013 cooperate with each other to further deliver the water under high pressure to the spray pipe 1011. The spray pipe 1011 atomizes the water and sprays it evenly into the inner cavity of the cylinder 1. The atomized water is in full contact with dust and impurities in the air, and the filter screen 6 can efficiently filter the dust and impurities.

[0027] like Figure 1 , Figure 2 , Figure 6 , Figure 7As shown, as a preferred embodiment of the present invention, the driving assembly 102 includes a horizontal column 1021 slidably installed in the inner cavity of the water tank 4 along the horizontal direction, the bottom wall of the horizontal column 1021 is provided with a long guide groove 1022, the top of the column 5 is fixedly installed with a control disk 1023 located below the horizontal column 1021, and a guide column 1024 extending into the guide groove 1022 is provided at a position deviating from the center of the surface of the control disk 1023, and connecting rods 1025 are fixedly installed on the two side walls opposite to each other, and a piston disk 1026 that cooperates with the water filling cylinder 1012 is fixedly installed on the end of the connecting rod 1025 away from the horizontal column 1021.

[0028] When in use, the motor 51 drives the column 5 to rotate and then drives the control disk 1023 to rotate in the water tank 4. The control disk 1023 drives the guide column 1024 to rotate synchronously. The guide column 1024 cooperates with the guide groove 1022 to control the reciprocating movement of the cross column 1021 in the inner cavity of the water tank 4. The cross column 1021 cooperates with the connecting rod 1025 to drive the piston disk 1026 to move synchronously. When the piston disk 1026 moves toward the water filling cylinder 1012 and is further inserted into the water filling cylinder 1012, the piston disk 1026 can send the water pressure in the water filling cylinder 1012 to the water pipe 1013.

[0029] like Figure 2 , Figure 3 , Figure 4 As shown, as a preferred embodiment of the present invention, the cleaning assembly 81 includes a cleaning rod 811 fixedly mounted on the surface of the central shaft 7 and located on the outside of the filter screen plate 6, the surface of the cleaning rod 811 is provided with a plurality of groups of brushes 812 in contact with the surface of the filter screen plate 6, a driven beveled gear plate 813 is fixedly mounted on the bottom end of the central shaft 7, and an active beveled gear plate 814 meshingly connected with the driven beveled gear plate 813 is fixedly mounted on the surface of the column 5.

[0030] When in use, the motor 51 drives the column 5 to rotate and then drives the active bevel gear plate 814 to rotate. The active bevel gear plate 814 engages with the driven bevel gear plate 813 for transmission, which can drive the central shaft 7 to rotate in the inner cavity of the cylinder 1. The central shaft 7 drives the cleaning rod 811 to rotate. The cleaning rod 811 drives the brush 812 to rotate on the outside of the filter plate 6. The brush 812 can automatically clean the dust and impurities attached to the surface of the filter plate 6.

[0031] like Figure 1 , Figure 2 , Figure 3 As shown, as a preferred embodiment of the present invention, the drainage assembly 82 includes a drainage port 821 opened on the bottom wall of the filter screen plate 6, a drainage pipe 822 is provided on the side wall of the bottom cylinder 3, and a control valve 823 is provided on the surface of the drainage pipe 822.

[0032] After the brush 812 cleans the dust and impurities attached to the surface of the filter screen 6, the dust and impurities fall to the bottom wall of the cylinder 1, and the dust and impurities pass through the guide port 821 at the bottom of the filter screen 6 and slide further downward and finally fall into the bottom cylinder 3. When the dust and impurities in the bottom cylinder 3 accumulate to a certain extent, the guide pipe 822 is opened to conveniently discharge the dust and impurities from the bottom cylinder 3.

[0033] like Figure 2 , Figure 3 , Figure 5 As shown, as a preferred embodiment of the present invention, the limiting assembly 91 includes a plurality of groups of annularly distributed slide grooves 911 opened on the inner wall of the cylinder 1, a sliding block 912 is slidably installed in the slide groove 911, an extrusion spring 913 connected to the sliding block 912 is fixedly installed in the slide groove 911, and the plurality of groups of sliding blocks 912 are connected to the filter screen plate 6.

[0034] When in use, multiple groups of sliding blocks 912 cooperate with each other to support and position the filter screen plate 6 in the inner cavity of the cylinder 1. When the telescopic component 92 applies thrust to the filter screen plate 6, the sliding block 912 slides in the slide groove 911, and the telescopic component 92 cooperates with the extrusion spring 913 to control the filter screen plate 6 to move back and forth in a small range in the inner cavity of the cylinder 1. When the filter screen plate 6 moves back and forth, the brush 812 can be inserted into the mesh on the surface of the filter screen plate 6, which can further improve the cleaning effect of the brush 812 on the filter screen plate 6.

[0035] like Figure 2 , Figure 3 , Figure 4 As shown, as a preferred embodiment of the present invention, the telescopic assembly 92 includes a plurality of groups of first protrusions 921 distributed in an annular shape and fixedly mounted on the surface of the filter screen plate 6, a side plate 922 is fixedly mounted on the surface of the central axis 7, and a plurality of groups of second protrusions 923 distributed in an annular shape and cooperating with the first protrusions 921 are fixedly mounted on the surface of the side plate 922.

[0036] When the central shaft 7 rotates, the side plate 922 is driven to rotate synchronously, and the side plate 922 drives the second protrusion 923 to rotate synchronously. The second protrusion 923 cooperates with the first protrusion 921 to push the filter screen plate 6 to move in the inner cavity of the cylinder 1. The side plate 922 rotates continuously, and the filter screen plate 6 moves back and forth in the inner cavity of the cylinder 1 continuously with a small amplitude.

[0037] The working principle of the present invention is: when in use, the exhaust device transports air into the cylinder 1, and when the air flows in the inner cavity of the two groups of cylinders 1, it will pass through the mesh on the surface of multiple groups of filter screens 6. The filter screens 6 can filter dust and impurities in the air, and the dust and impurities will adhere to the surface of the filter screens 6.

[0038] When filtering the air, the motor 51 drives the column 5 to rotate and then drives the control disk 1023 to rotate in the water tank 4. The control disk 1023 drives the guide column 1024 to rotate synchronously. The guide column 1024 cooperates with the guide groove 1022 to control the cross column 1021 to move back and forth in the inner cavity of the water tank 4. The cross column 1021 cooperates with the connecting rod 1025 to drive the piston disk 1026 to move synchronously. When the piston disk 1026 moves toward the water filling cylinder 1012 and is further inserted into the water filling cylinder 1012, the piston disk 1026 can deliver the water pressure in the water filling cylinder 1012 to the water guide pipe 1013, and can further deliver the water at high pressure to the spray pipe 1011. The spray pipe 1011 atomizes the water and sprays it evenly into the inner cavity of the cylinder body 1. The atomized water is in full contact with the dust and impurities in the air, and the filter screen plate 6 can efficiently filter the dust and impurities.

[0039] The column 5 rotates and then drives the active bevel gear plate 814 to rotate. The active bevel gear plate 814 and the driven bevel gear plate 813 are meshed and driven, which can drive the central shaft 7 to rotate in the inner cavity of the cylinder 1. The central shaft 7 drives the cleaning rod 811 to rotate. The cleaning rod 811 drives the brush 812 to rotate outside the filter screen plate 6. The brush 812 can automatically clean the dust impurities attached to the surface of the filter screen plate 6. After the brush 812 cleans the dust impurities attached to the surface of the filter screen plate 6, the dust impurities fall to the bottom wall of the cylinder 1. The dust impurities pass through the guide outlet 821 at the bottom of the filter screen plate 6 and slide further downward and finally fall into the bottom cylinder 3. When the dust impurities in the bottom cylinder 3 accumulate to a certain extent, the guide pipe 822 is opened to conveniently discharge the dust impurities from the bottom cylinder 3.

[0040] When the central shaft 7 rotates, the side plate 922 is driven to rotate synchronously, and the side plate 922 drives the second protrusion 923 to rotate synchronously. The second protrusion 923 cooperates with the first protrusion 921 to push the filter screen plate 6 to move in the inner cavity of the cylinder 1. The side plate 922 rotates continuously, and the filter screen plate 6 moves back and forth continuously in a small amplitude in the inner cavity of the cylinder 1. When the filter screen plate 6 moves back and forth, the brush 812 can be inserted into the mesh on the surface of the filter screen plate 6, which can further improve the cleaning effect of the brush 812 on the filter screen plate 6.

[0041] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. An environmental protection air purification and filtering device, comprising a cylinder, characterized in that: The cylinder is provided with two groups and connected to form a V-shaped structure, a support plate is fixedly installed on the bottom wall of the cylinder, the top of one group of cylinders is set as an air inlet, and the top of the other group of cylinders is set as an air outlet, the air inlet is connected to an external exhaust device, and a bottom cylinder is fixedly installed on the bottom ends of the two groups of cylinders, and the bottom cylinder is connected to the cylinder, and a water tank is fixedly installed above the two groups of cylinders, and a column extending into the water tank is rotatably installed in the bottom cylinder, and the bottom end of the column extends to the bottom of the bottom cylinder and is connected to a motor; The inner cavity of the cylinder is provided with a plurality of sets of filter screen plates distributed in parallel, and a central axis is rotatably mounted on the inner axis of the inner cavity of the cylinder through a bracket, and the central axis passes through the center of the filter screen plate; A humidifying mechanism is arranged in the cylinder, and the humidifying mechanism includes a spraying assembly and a driving assembly. The spraying assembly is located in the cylinder and connected to the water storage tank. The driving assembly is located in the water storage tank. The driving assembly performs atomization humidification on the inner cavity of the cylinder by cooperating with the spraying assembly. The inner cavity of the cylinder is provided with a dust removal mechanism that cooperates with the filter screen plate. The dust removal mechanism includes a cleaning component and a guide assembly. The cleaning component is located on the surface of the central axis and on the outside of the filter screen plate. When the column rotates, the cleaning component controls the central axis to rotate synchronously and further cleans the surface of the filter screen plate. The guide assembly is connected to the bottom cylinder, and the guide assembly is used to discharge the impurities cleaned from the surface of the filter screen plate to the outside of the cylinder and the bottom cylinder; A positioning mechanism that cooperates with the filter screen is provided in the cylinder, and the positioning mechanism includes a limit assembly and a telescopic assembly. The limit assembly is located on the inner wall of the cylinder and is connected to the filter screen. The limit assembly is used to support and position the filter screen in the inner cavity of the cylinder. The telescopic assembly is located on the surface of the central axis and is connected to the filter screen. When the central axis rotates, the telescopic assembly controls the reciprocating movement of the filter screen along the axis direction of the cylinder by cooperating with the limit assembly.

2. The environmental protection air purification filter device according to claim 1, characterized in that: The spray assembly includes a spray pipe fixedly installed on the top wall of the cylinder body, a plurality of atomizing nozzles are arranged on the surface of the spray pipe, a notch which cooperates with the spray pipe is opened on the surface of the filter screen plate, water filling cylinders are fixedly installed on the two opposite side walls of the water storage tank, a water guide pipe is fixedly installed on one end of the water filling cylinder away from the water storage tank, and the end of the water guide pipe away from the water filling cylinder extends into the cylinder body and is connected to the spray pipe.

3. The environmental protection air purification filter device according to claim 2, characterized in that: The driving assembly includes a horizontal column installed for sliding in the inner cavity of the water tank in the horizontal direction, the bottom wall of the horizontal column is provided with an elongated guide groove, the top of the column is fixedly provided with a control disk located below the horizontal column, a guide column extending into the guide groove is provided at a position deviating from the center of the circle on the surface of the control disk, connecting rods are fixedly provided on the two side walls opposite to each other, and a piston disk cooperating with the water filling cylinder is fixedly provided on the end of the connecting rod away from the horizontal column.

4. The environmental protection air purification filter device according to claim 1, characterized in that: The cleaning assembly includes a cleaning rod fixedly mounted on the surface of a central axis and located outside the filter screen, the surface of the cleaning rod is provided with a plurality of groups of brushes in contact with the surface of the filter screen, a driven beveled gear plate is fixedly mounted on the bottom end of the central axis, and an active beveled gear plate meshingly connected with the driven beveled gear plate is fixedly mounted on the surface of the column.

5. The environmental protection air purification filter device according to claim 1, characterized in that: The drainage assembly comprises a drainage port opened on the bottom wall of the filter screen plate, a drainage pipe is arranged on the side wall of the bottom cylinder, and a control valve is arranged on the surface of the drainage pipe.

6. The environmental protection air purification filter device according to claim 1, characterized in that: The limit assembly includes multiple groups of annularly distributed slide grooves opened on the inner wall of the cylinder body, a sliding block is slidably installed in the slide groove, an extrusion spring connected to the sliding block is fixedly installed in the slide groove, and multiple groups of sliding blocks are connected to the filter screen plate.

7. The environmental protection air purification filter device according to claim 1, characterized in that: The telescopic assembly includes a plurality of groups of first protrusions distributed in an annular shape and fixedly mounted on the surface of the filter screen plate, a side plate fixedly mounted on the surface of the central axis, and a plurality of groups of second protrusions distributed in an annular shape and cooperating with the first protrusions fixedly mounted on the surface of the side plate.

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