Anti-clogging filtering device and filtering method for domestic sewage treatment

Abstract

The present invention relates to the technical field of filtering equipment, and specifically discloses an anti-clogging filtering device for domestic sewage treatment, comprising a tank body, an inlet pipe fixedly connected to the bottom of the tank body, a discharge pipe fixedly plugged into the right side of the tank body, a partition fixedly connected to the inside of the tank body, a mounting ring fixedly connected to the bottom of the partition and the inner bottom of the tank body, a filter cartridge fixedly connected between the two mounting rings, an adsorption component for adsorbing impurities inside the filter cartridge is provided inside the tank body, the adsorption component comprises a small tube rotatably connected to the middle part of the partition, a connecting tube is slidably plugged into the inside of the small tube, and a plurality of connecting tubes are provided, an adsorption cover is fixedly plugged into the side of the connecting tube away from the small tube, and a driving part for driving the small tube to rotate is provided above the partition. Through the cooperation of the above-mentioned structure, impurities at different positions of the filter cartridge can be treated more evenly, the anti-clogging effect of the filter holes can be improved, and the waste of water resources can be reduced to a certain extent.

Description

Technical Field

[0001] The present invention relates to the technical field of filtering equipment, and in particular to an anti-clogging filtering device and a filtering method for treating domestic sewage. Background Art

[0002] Domestic sewage refers to the sewage generated in the daily lives of residents, mainly including kitchen sewage, washing sewage and bathing sewage, etc. It is necessary to remove or reduce the harmful substances in domestic sewage so that it meets the discharge standards or reuse standards. When treating domestic sewage, it is necessary to first use the screen to remove large particles of impurities in the domestic sewage, and then use the sand settling tank to remove sand, slag and other inorganic particles with larger specific gravity in the sewage. Then, a filter device can be used to filter out smaller particles of impurities in the water to separate impurities from water.

[0003] When a filter device is filtering, as the device is used, filter residue may clog the filter holes. In the prior art, in order to solve this problem, a filter device with a backwash function can be used, which uses the reverse flow of water to clean and filter impurities to solve the problem of filter residue clogging the filter holes.

[0004] For example, the "wastewater filter device with a backwash structure" with the publication number "CN220090693U" is a device that, when the filter needs to be cleaned, discharges water from the drain outlet. Due to the water flow velocity itself, the turbine blades will rotate at high speed. Under the linkage of the rotating rod, the cleaning brush will rotate synchronously at high speed on the outside of the filter, further cleaning the filter. The device cleans the filter by rotating the cleaning brush in conjunction with the water flow. However, kitchen waste water often contains oil and dirt, which is easy to accumulate and adsorb impurities on the filter, making it difficult to clean the blocked filter. When the device is backwashing, the water flow is easy to flow unevenly to the filter, resulting in uneven cleaning effect of the filter, thereby affecting the anti-clogging effect of the filter. Moreover, since the backwash water flows unevenly to the filter, a large amount of backwash water resources are wasted. In addition, traditional cleaning components are easy to block the filtering surface of the filter during sewage filtration, affecting the filtration efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide an anti-clogging filtering device and a filtering method for domestic sewage treatment, which can make it possible to treat impurities at different positions of the filter cartridge more evenly, improve the anti-clogging effect of the filter holes, reduce the waste of water resources to a certain extent, and during filtering, the adsorption cover will not block the filtering surface of the filter screen, avoiding the adsorption cover affecting the filtering area of ​​the device, thereby improving the filtering efficiency of the device, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an anti-clogging filtering device for domestic sewage treatment, comprising a tank body, an inlet pipe fixedly connected to the bottom of the tank body, a discharge pipe fixedly plugged into the right side of the tank body, a partition fixedly connected to the inside of the tank body, a mounting ring fixedly connected to the bottom of the partition and the inner bottom of the tank body, a filter cartridge fixedly connected between the two mounting rings, an adsorption assembly for adsorbing impurities inside the filter cartridge is provided inside the tank body, the adsorption assembly comprises a small tube rotatably connected to the middle part of the partition, a connecting pipe is slidably plugged into the inside of the small tube, and a plurality of connecting tubes are provided, an adsorption hood is fixedly plugged into the side of the connecting tube away from the small tube, a driving part for driving the small tube to rotate is provided above the partition, and an extrusion assembly for adjusting the position of the adsorption hood is provided inside and below the small tube, the extrusion assembly comprises a lifting rod slidably connected to the inside of the small tube, an inclined plate is fixedly connected to the outer wall of the lifting rod corresponding to the position of the connecting tube, and the inclined plate is inclined near the connecting tube and the connecting tube is inclined near the inclined plate.

[0007] Preferably, an elastic band is fixedly connected between the adsorption cover and the small tube.

[0008] Preferably, a rotary joint is installed on the top of the small tube, an adsorption tube is fixedly connected to the left side of the rotary joint, and valves are installed inside the adsorption tube and the inlet tube.

[0009] Preferably, the driving part includes a motor fixedly connected to the inner side of the top of the tank body, and the output shaft of the motor and the outer wall of the small tube are both fixedly connected with gears, and the two gears are meshed.

[0010] Preferably, a lifting part for moving the lifting rod up and down is provided below the lifting rod, the bottom of the lifting rod extends from the bottom of the small tube, and the lifting part includes an L-shaped frame fixedly connected to the bottom inner side of the tank body, an electric telescopic rod is fixedly connected to the left side of the L-shaped frame, and the output shaft of the electric telescopic rod extends from the L-shaped frame and is fixedly connected to a circular plate.

[0011] Preferably, a scraping assembly is provided both inside and outside the adsorption cover, and the scraping assembly includes a rotating rod rotatably connected to the inside of the adsorption cover, and the outer wall of the rotating rod is located inside the adsorption cover and is slidably connected to a cleaning brush cylinder, and the scraping assembly also includes an anti-slip ring fixedly connected to the inner side of the mounting ring, and the top and bottom ends of the rotating rod are located at the corresponding positions of the anti-slip ring and are fixedly connected to friction wheels.

[0012] Preferably, the bottom annular array of the cleaning brush cylinder is fixedly connected with a tilting block, and the scraping assembly further includes a limiting rod fixedly connected to the bottom inner side of the adsorption cover.

[0013] Preferably, a through groove is provided on one side of the adsorption hood in the counterclockwise rotation direction, and a sealing component is commonly provided inside the adsorption hood and the connecting tube. The sealing component includes an annular array of inclined elastic strips fixedly connected to the inside of the connecting tube, a flexible membrane is fixedly connected between the outer side of the elastic strip and the connecting tube, and a medium bag is fixedly connected between the outer side of the flexible membrane and the connecting tube.

[0014] Preferably, the blocking component further comprises an elastic bag fixedly connected to the interior of the adsorption cover at the through groove, and a conduit is fixedly connected between the elastic bag and the medium bag.

[0015] The present invention also provides an anti-clogging filtration method for domestic sewage treatment, comprising the following steps:

[0016] S1, filtration, sewage enters the filter cartridge for filtration and is discharged from the discharge pipe;

[0017] S2. Impurity removal: the adsorption cover is attached to the inner side of the filter cartridge and adsorbs to remove impurities.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. Through the action of the adsorption component, impurities in different positions of the filter cartridge can be processed more evenly, thereby improving the anti-clogging effect of the filter holes and reducing the waste of water resources to a certain extent;

[0020] 2. Through the action of the extrusion component, the adsorption cover will not block the filtering surface of the filter screen during filtration, avoiding the adsorption cover affecting the filtering area of ​​the device, thereby improving the filtering efficiency of the device, and when cleaning impurities, the adsorption cover fits the inner side of the filter cartridge, and most of the water enters from the outside of the filter cartridge to flush the filter holes of the filter cartridge, further improving the impurity removal effect, thereby improving the anti-clogging effect of the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is an overall structural view of the present invention;

[0023] Figure 2 It is a schematic diagram of a half-section structure of the present invention;

[0024] Figure 3 It is a partial structural schematic diagram of the scraping assembly of the present invention;

[0025] Figure 4 It is a schematic diagram of the partial structure of the extrusion assembly of the present invention;

[0026] Figure 5 Schematic diagram of a half-section structure of the filter cartridge of the present invention;

[0027] Figure 6 It is a front cross-sectional structural schematic diagram of the adsorption cover of the present invention;

[0028] Figure 7 For the present invention Figure 6 Schematic diagram of the structure viewed from above;

[0029] Figure 8 It is a schematic diagram of the partial cross-sectional structure of the connecting pipe of the present invention.

[0030] Description of reference numerals:

[0031] 1. Tank body; 2. Inlet pipe; 3. Outlet pipe; 4. Partition; 5. Mounting ring; 6. Adsorption assembly; 61. Small tube; 62. Connecting pipe; 63. Adsorption cover; 64. Drive unit; 641. Motor; 642. Gear; 65. Through slot; 7. Extrusion assembly; 71. Lifting rod; 72. Tilt plate; 73. Lifting unit; 731. L-shaped frame; 732. Electric telescopic rod; 733. Circular plate; 8. Scraping assembly; 81. Rotating rod; 82. Cleaning brush cylinder; 83. Anti-slip ring; 84. Friction wheel; 85. Tilt block; 86. Limit rod; 9. Blocking assembly; 91. Elastic strip; 92. Flexible membrane; 93. Medium capsule; 94. Elastic capsule; 95. Conduit; 10. Filter cartridge; 11. Elastic band; 12. Rotary joint; 13. Adsorption tube; 14. Valve. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Example 1: Please refer to Figures 1 to 6The present invention provides a technical solution: an anti-clogging filtering device for domestic sewage treatment, comprising a tank body 1, an inlet pipe 2 fixedly connected to the bottom of the tank body 1, a discharge pipe 3 fixedly plugged into the right side of the tank body 1, a partition 4 fixedly connected to the inside of the tank body 1, a mounting ring 5 fixedly connected to the bottom of the partition 4 and the inner bottom of the tank body 1, a filter cartridge 10 fixedly connected between the two mounting rings 5, an adsorption component 6 for adsorbing impurities inside the filter cartridge 10 is provided inside the tank body 1, the adsorption component 6 includes a small tube 61 rotatably connected to the middle part of the partition 4, a connecting tube 62 is slidably plugged into the inside of the small tube 61, and a plurality of connecting tubes 62 are provided, an adsorption cover 63 is fixedly plugged into the side of the connecting tube 62 away from the small tube 61, and a driving device for driving the small tube 61 to rotate is provided above the partition 4. Part 64 The driving part 64 includes a motor 641 fixedly connected to the inner side of the top of the tank body 1, and the output shaft of the motor 641 and the outer wall of the small tube 61 are fixedly connected with a gear 642, and the two gears 642 are meshed with each other. A rotary joint 12 is installed on the top of the small tube 61, and an adsorption tube 13 is fixedly inserted on the left side of the rotary joint 12. A valve 14 is installed inside the adsorption tube 13 and the inlet tube 2. A through groove 65 is provided on the side of the adsorption cover 63 in the counterclockwise rotation direction. The valve 14 can be an electromagnetic valve, and its principle and installation are mature existing technologies and will not be elaborated on. The filter cartridge 10 is made of rigid material and is provided with multiple filter holes. The rotary joint 12 is a mature existing technology and will not be elaborated on. It can ensure that the adsorption tube 13 is connected to the small tube 61 without affecting the rotation of the small tube 61.

[0034] By adopting the above technical solution, when filtering, the valve 14 in the inlet pipe 2 is opened, and the valve 14 in the adsorption tube 13 is closed. The sewage containing fine impurities enters the tank body 1 from the inlet pipe 2 and is located inside the filter cartridge 10. The sewage entering the filter cartridge 10 passes through the filter holes opened in the filter cartridge 10, while the impurities remain inside the filter cartridge 10. The filtered water enters the interior of the tank body 1 and is located outside the filter cartridge 10 and is discharged from the discharge pipe 3.

[0035] After filtering for a period of time, the filter holes of the filter cartridge 10 will be blocked to a certain extent. At this time, the valve 14 in the inlet pipe 2 is closed, and the valve 14 in the adsorption pipe 13 is opened. A suction pump is installed on the left side of the adsorption pipe 13. At this time, the suction pump is turned on to allow the water inside the tank body 1 to flow to the adsorption cover 63, and enter the interior of the connecting pipe 62 and the small tube 61 in turn, and then be discharged from the adsorption pipe 13.

[0036] It should be noted that the discharge pipe 3 is connected to a pipe away from the tank body 1, and the other end of the pipe is connected to a container for collecting filtered water. The installation position of the container for collecting filtered water is located above the tank body 1 to ensure that the interior of the tank body 1 is filled with water when processing impurities and filtering. A water pump is installed at the bottom of the inlet pipe 2 to facilitate the delivery of sewage into the interior of the tank body 1.

[0037] It is necessary to deal with the impurities adhering to the filter holes. When the suction pump is sucking, the adsorption cover 63 sucks water from the inside of the tank body 1. At this time, since the adsorption cover 63 is close to the side of the filter cartridge 10 and fits the filter cartridge 10, when the adsorption cover 63 sucks water, the water outside the filter cartridge 10 can flow to the inside of the filter cartridge 10 and the adsorption cover 63, thereby flushing the filter cartridge 10, and the impurities enter the connecting pipe 62 and the small tube 61 with the sucked water and are discharged from the adsorption pipe 13.

[0038] And when the output shaft of the motor 641 rotates, the gear 642 connected to the output shaft of the motor 641 rotates. Under the action of the engagement of the two gears 642, the small tube 61 is controlled to rotate counterclockwise, so that the multiple adsorption covers 63 and the connecting pipe 62 also rotate counterclockwise, so that the adsorption cover 63 can be rotated to different positions to perform negative pressure adsorption and flushing on impurities. This design makes it possible to more evenly treat impurities at different positions of the filter cartridge 10, improve the anti-clogging effect of the filter holes, and reduce the waste of water resources to a certain extent.

[0039] The design of the through slot 65 allows the corresponding portion of impurities to enter the interior of the adsorption cover 63 when the adsorption cover 63 rotates.

[0040] Specifically, such as Figures 1 to 6 As shown, an extrusion assembly 7 for adjusting the position of the adsorption cover 63 is provided inside and below the small tube 61. The extrusion assembly 7 includes a lifting rod 71 slidably connected to the inside of the small tube 61. The outer wall of the lifting rod 71 is fixedly connected to the position of the connecting tube 62 with an inclined plate 72. The inclined plate 72 is inclined near the connecting tube 62 and the connecting tube 62 is inclined near the inclined plate 72. An elastic band 11 is fixedly connected between the adsorption cover 63 and the small tube 61. A lifting part 73 for moving the lifting rod 71 up and down is provided below the lifting rod 71. The bottom of the lifting rod 71 extends from the bottom of the small tube 61. The lifting part 73 includes an L-shaped frame 731 fixedly connected to the bottom of the inner side of the tank body 1. The left side of the L-shaped frame 731 is fixedly connected to an electric telescopic rod 732. The output shaft of the electric telescopic rod 732 extends from the L-shaped frame 731 and is fixedly connected to a circular plate 733.

[0041] By adopting the above technical solution, when filtering, the output shaft of the electric telescopic rod 732 is in a retracted state. At this time, under the elastic force of the elastic belt 11 itself, the adsorption cover 63 is moved away from the filter cartridge 10. At this time, the adsorption cover 63 will not block the filtering surface of the filter screen, avoiding the adsorption cover 63 affecting the filtering area of ​​the device, thereby improving the filtering efficiency of the device.

[0042] When cleaning impurities, the output shaft of the electric telescopic rod 732 extends, causing the circular plate 733 to move upward. At this time, the circular plate 733 squeezes the bottom of the lifting rod 71, causing the lifting rod 71 to move upward with the inclined plate 72. Since the positions of multiple inclined plates 72 correspond to the connecting pipe 62, the multiple inclined plates 72 squeeze the corresponding connecting pipe 62 upward, causing the connecting pipe 62 to move toward the direction close to the filter cartridge 10 with the adsorption cover 63, so that the adsorption cover 63 is attached to the inner side of the filter cartridge 10. When the adsorption cover 63 is adsorbed, most of the water enters from the outside of the filter cartridge 10 to flush the filter holes of the filter cartridge 10, further improving the impurity removal effect, thereby improving the anti-clogging effect of the filter screen.

[0043] An O-ring is installed at the connection between the L-shaped frame 731 and the output shaft of the electric telescopic rod 732 to prevent water from entering the electric telescopic rod 732.

[0044] It should be noted that a ball bearing is rotatably connected to the bottom of the lifting rod 71 to reduce the friction between the lifting rod 71 and the circular plate 733 during movement.

[0045] Specifically, such as Figures 2 to 7 As shown, a scraping assembly 8 is provided inside and outside the adsorption cover 63. The scraping assembly 8 includes a rotating rod 81 rotatably connected to the inside of the adsorption cover 63. The outer wall of the rotating rod 81 is located inside the adsorption cover 63 and is slidably connected to a cleaning brush cylinder 82. The scraping assembly 8 also includes an anti-slip ring 83 fixedly connected to the inner side of the mounting ring 5. The top and bottom ends of the rotating rod 81 are located at the corresponding positions of the anti-slip ring 83 and are fixedly connected to friction wheels 84.

[0046] By adopting the above technical solution, when cleaning impurities, the connecting pipe 62 moves with the adsorption cover 63 toward the filter cartridge 10, so that the friction wheel 84 approaches the anti-slip ring 83 and squeezes the anti-slip ring 83, so that the positive pressure between the friction wheel 84 and the anti-slip ring 83 is relatively large, so that there is a large friction between the two during movement.

[0047] When the small tube 61 rotates, the connecting tube 62 rotates with the adsorption cover 63, thereby causing the rotating rod 81 and the friction wheel 84 to rotate. Under the action of the friction force between the friction wheel 84 and the anti-slip ring 83, the rotating rod 81 can rotate around the axis of the rotating rod 81 with the cleaning brush cylinder 82, and the direction of rotation is opposite to the rotation direction of the small tube 61, so that the cleaning brush cylinder 82 cleans the filter cartridge 10 in the direction opposite to the rotation direction of the adsorption cover 63, further improving the effect of removing impurities, thereby further improving the anti-clogging effect of the device.

[0048] The anti-slip ring 83 is made of corrosion-resistant silicone material and has strong anti-slip performance. The rotating rod 81 is made of a rigid material. The ring side of the friction wheel 84 is rough.

[0049] Specifically, such as Figures 2 to 7 As shown, the bottom annular array of the cleaning brush cylinder 82 is fixedly connected to the tilting block 85 , and the scraping assembly 8 also includes a limiting rod 86 fixedly connected to the bottom inner side of the adsorption cover 63 .

[0050] By adopting the above technical solution, the bottom of the tilting block 85 is tilted, and the top of the limiting rod 86 is rotatably connected to a ball for reducing movement friction.

[0051] The bottom of the cleaning brush barrel 82 and the corresponding position of the rotating rod 81 at the bottom of the cleaning brush barrel 82 are fixedly connected with magnetic blocks. In the initial state, under the action of magnetic adsorption, the two magnetic blocks are in a close state. As the rotating rod 81 rotates with the cleaning brush barrel 82, when the tilting block 85 rotates close to the limit rod 86, the cleaning brush barrel 82 can move upward under the tilting of the bottom of the tilting block 85 and the limiting action of the limit rod 86. When the tilting block 85 rotates away from the limit rod 86, the cleaning brush barrel 82 is reset under the action of the magnetic force of the magnet. This design allows the cleaning brush barrel 82 to shake up and down during cleaning.

[0052] The design of the cleaning brush cylinder 82 shaking up and down can provide cleaning in the up and down directions when cleaning the filter cartridge 10, thereby further improving the cleaning effect.

[0053] On the other hand, when the cleaning brush barrel 82 shakes up and down, the bristles installed thereon are constantly in contact with water. Under the action of the water resistance, impurities adhering to the bristles are shaken out, thereby reducing excessive accumulation of impurities on the bristles and affecting the subsequent cleaning effect.

[0054] It should be noted that the height positions of adjacent cleaning brush cylinders 82 overlap.

[0055] It should be noted that the friction force between the friction wheel 84 and the anti-slip ring 83 is greater than the resistance of the cleaning brush cylinder 82 to movement.

[0056] Example 2: The technical solution of this embodiment is different from that of Example 1 in that: Figures 2 to 4 and Figures 6 to 8 As shown, a sealing component 9 is commonly provided inside the adsorption hood 63 and the connecting pipe 62. The sealing component 9 includes an annular array of inclined elastic strips 91 fixedly connected to the inside of the connecting pipe 62. A flexible membrane 92 is fixedly connected between the outer side of the elastic strip 91 and the connecting pipe 62. A medium bag 93 is fixedly connected between the outer side of the flexible membrane 92 and the connecting pipe 62. The sealing component 9 also includes an elastic bag 94 fixedly connected to the inside of the adsorption hood 63 at the through groove 65. A conduit 95 is fixedly connected between the elastic bag 94 and the medium bag 93. Both the medium bag 93 and the elastic bag 94 are made of corrosion-resistant materials.

[0057] By adopting the above technical solution, when filtering, since the suction pump is not started, the opening of the flexible membrane 92 away from the connecting pipe 62 is smaller, and the water in the connecting pipe 62 does not flow. Under the elastic force of the elastic bag 94 itself, the elastic bag 94 does not block the through groove 65, ensuring that impurities can enter the interior of the adsorption cover 63. When cleaning is performed, the suction pump is started to make the liquid in the connecting pipe 62 flow. Under the pressure of the liquid flow, the opening of the flexible membrane 92 away from the connecting pipe 62 gradually becomes larger. At this time, the elastic strip 91 squeezes the medium bag 93, thereby making the medium in the medium bag 93 enter the elastic bag 94, causing the elastic bag 94 to expand and block the through groove 65, further improving the fitting effect of the adsorption cover 63 and the filter cartridge 10. When the adsorption cover 63 is adsorbed, most of the water enters from the outside of the filter cartridge 10 to flush the filter holes of the filter cartridge 10, further improving the impurity removal effect.

[0058] It should be noted that the suction pump performs suction intermittently. When the adsorption cover 63 rotates to a certain position, the motor 641 stops rotating first, and then the suction pump continues to suck and remove impurities.

[0059] It should be noted that the arc length of the adsorption cover 63 rotating between adjacent suctions is smaller than the arc length of the adsorption cover 63 on the side close to the filter cartridge 10 .

[0060] An embodiment of the present invention further provides an anti-clogging filtration method for domestic sewage treatment, comprising the following steps:

[0061] S1, filtration. The valve 14 in the inlet pipe 2 is opened, and the valve 14 in the adsorption tube 13 is closed. The sewage containing fine impurities enters the tank body 1 from the inlet pipe 2 and is located inside the filter cartridge 10. The sewage entering the filter cartridge 10 passes through the filter holes opened in the filter cartridge 10, while the impurities remain inside the filter cartridge 10. The filtered water enters the interior of the tank body 1, is located outside the filter cartridge 10, and is discharged from the discharge pipe 3.

[0062] S2, remove impurities, close the valve 14 in the inlet pipe 2, open the valve 14 in the adsorption pipe 13, and install a suction pump on the left side of the adsorption pipe 13. At this time, turn on the suction pump to make the water inside the tank body 1 flow to the adsorption cover 63, and enter the interior of the connecting pipe 62 and the small tube 61 in turn, and then be discharged from the adsorption pipe 13.

[0063] Working principle:

[0064] While removing impurities, the small tube 61 is controlled to rotate counterclockwise, so that the multiple adsorption covers 63 and the connecting tube 62 also rotate counterclockwise, so that the adsorption covers 63 rotate to different positions to perform negative pressure adsorption and flushing on impurities. This design makes it possible to more evenly treat impurities at different positions of the filter cartridge 10.

[0065] When the filter is in the working state, the output shaft of the electric telescopic rod 732 is in a retracted state. At this time, under the elastic force of the elastic band 11 itself, the adsorption cover 63 is away from the filter cartridge 10. At this time, the adsorption cover 63 will not block the filtering surface of the filter screen, preventing the adsorption cover 63 from affecting the filtering area of ​​the device, thereby improving the filtration efficiency of the device. When cleaning impurities, the output shaft of the electric telescopic rod 732 is extended, causing the circular plate 733 to move upward. At this time, the circular plate 733 squeezes the bottom of the lifting rod 71, causing the lifting rod 71 to move upward with the inclined plate 72. Since the positions of the multiple inclined plates 72 correspond to the connecting pipe 62, the multiple inclined plates 72 squeeze the corresponding connecting pipe 62 upward, causing the connecting pipe 62 to move with the adsorption cover 63 in the direction close to the filter cartridge 10, so that the adsorption cover 63 is attached to the inner side of the filter cartridge 10, so that when the adsorption cover 63 is adsorbed, water mostly enters from the outside of the filter cartridge 10 to flush the filter holes of the filter cartridge 10.

[0066] Under the action of the friction between the friction wheel 84 and the anti-slip ring 83, the rotating rod 81 can rotate with the cleaning brush cylinder 82 around the axis of the rotating rod 81, and the direction of rotation is opposite to the rotation direction of the small tube 61, so that the cleaning brush cylinder 82 cleans the filter cartridge 10 in the direction opposite to the rotation direction of the adsorption cover 63. When the tilting block 85 rotates close to the limit rod 86, the cleaning brush cylinder 82 can move upward under the inclination of the bottom of the tilting block 85 and the limiting action of the limit rod 86. When the tilting block 85 rotates away from the limit rod 86, the cleaning brush cylinder 82 is reset under the action of the magnetic force of the magnetic block. This design allows the cleaning brush cylinder 82 to shake up and down during cleaning, which is conducive to shaking out impurities stuck on the bristles, thereby reducing excessive accumulation of impurities on the bristles and affecting the subsequent cleaning effect.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An anti-clogging filter device for domestic sewage treatment, comprising a tank (1), characterized in that: The bottom of the tank body (1) is fixedly connected to an inlet pipe (2), the right side of the tank body (1) is fixedly plugged with a discharge pipe (3), the interior of the tank body (1) is fixedly connected to a partition (4), the bottom of the partition (4) and the inner bottom of the tank body (1) are both fixedly connected to mounting rings (5), and a filter cartridge (10) is fixedly connected between the two mounting rings (5); An adsorption assembly (6) for adsorbing impurities inside the filter cartridge (10) is provided inside the tank body (1), the adsorption assembly (6) comprising a small tube (61) rotatably connected to the middle portion of the partition (4), a connecting tube (62) being slidably plugged into the inside of the small tube (61), and a plurality of connecting tubes (62) are provided, an adsorption cover (63) being fixedly plugged into the side of the connecting tube (62) away from the small tube (61), and a driving portion (64) for driving the small tube (61) to rotate is provided above the partition (4); An extrusion assembly (7) for adjusting the position of the adsorption cover (63) is provided inside and below the small tube (61). The extrusion assembly (7) includes a lifting rod (71) slidably connected to the inside of the small tube (61). An inclined plate (72) is fixedly connected to the outer wall of the lifting rod (71) at a position corresponding to the connecting tube (62). The inclined plate (72) is inclined at a position close to the connecting tube (62) and at a position close to the inclined plate (72) of the connecting tube (62). A lifting portion (73) for moving the lifting rod (71) up and down is provided below the lifting rod (71). The bottom of the lifting rod (71) extends from the bottom of the small tube (61). The lifting portion (73) includes an L-shaped frame (731) fixedly connected to the bottom of the inner side of the tank body (1). An electric telescopic rod (732) is fixedly connected to the left side of the L-shaped frame (731). The output shaft of the electric telescopic rod (732) extends from the L-shaped frame (731) and is fixedly connected to a circular plate (733). The interior and exterior of the adsorption cover (63) are both provided with a scraping assembly (8), the scraping assembly (8) comprising a rotating rod (81) rotatably connected to the interior of the adsorption cover (63), the outer wall of the rotating rod (81) being located inside the adsorption cover (63) and being slidably connected to a cleaning brush cylinder (82), the scraping assembly (8) further comprising an anti-slip ring (83) fixedly connected to the inner side of the mounting ring (5), and friction wheels (84) fixedly connected to the top and bottom ends of the rotating rod (81) at positions corresponding to the anti-slip ring (83); A through slot (65) is provided on one side of the adsorption hood (63) in a counterclockwise rotation direction. A blocking assembly (9) is provided inside the adsorption hood (63) and the connecting pipe (62). The blocking assembly (9) comprises an annular array of inclined elastic strips (91) fixedly connected to the inside of the connecting pipe (62). A flexible membrane (92) is fixedly connected between the outer side of the elastic strips (91) and the connecting pipe (62). A medium capsule (93) is fixedly connected between the outer side of the flexible membrane (92) and the connecting pipe (62). The blocking assembly (9) further comprises an elastic capsule (94) fixedly connected to the inside of the adsorption hood (63) at the through slot (65). A conduit (95) is fixedly connected between the elastic capsule (94) and the medium capsule (93).

2. The anti-clogging filter device for domestic sewage treatment according to claim 1, characterized in that: An elastic band (11) is fixedly connected between the adsorption cover (63) and the small tube (61).

3. The anti-clogging filter device for domestic sewage treatment according to claim 1, characterized in that: A rotary joint (12) is installed on the top of the small tube (61), an adsorption tube (13) is fixedly connected to the left side of the rotary joint (12), and valves (14) are installed inside the adsorption tube (13) and the inlet tube (2).

4. The anti-clogging filter device for domestic sewage treatment according to claim 1, characterized in that: The driving part (64) comprises a motor (641) fixedly connected to the inner side of the top of the tank body (1), and the output shaft of the motor (641) and the outer wall of the small tube (61) are both fixedly connected with gears (642), and the two gears (642) are meshed with each other.

5. The anti-clogging filter device for domestic sewage treatment according to claim 1, characterized in that: The bottom annular array of the cleaning brush cylinder (82) is fixedly connected to a tilting block (85), and the scraping assembly (8) further includes a limiting rod (86) fixedly connected to the bottom inside the adsorption cover (63).

6. An anti-clogging filtration method for domestic sewage treatment, characterized by: The method is applicable to the anti-clogging filter device for domestic sewage treatment according to any one of claims 1 to 5, comprising the following steps: S1, filtration, sewage enters the inner side of the filter cartridge (10) for filtration and is discharged from the discharge pipe (3); S2, impurity removal: the adsorption cover (63) is attached to the inner side of the filter cartridge (10) and performs adsorption to achieve impurity removal.

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