Multi-stage circulating filtration device for pollution treatment of community garden water body

Abstract

The invention discloses a multi-stage circulating filtration device for pollution treatment of a water body in a community garden, and belongs to the technical field of sewage treatment, the multi-stage circulating filtration device comprises a first filtration bin, and a second filtration bin is arranged on one side of the first filtration bin; according to the device, the wall scraping assembly and the knocking assembly are arranged, an outer sleeve rod of the wall scraping assembly rotates along with a rotating rod, and a compression spring in the outer sleeve rod pushes an inner sliding rod to stretch out, so that a scraping plate is tightly attached to the inner wall of the filter element and does circular motion along with the rotating rod, and the scraping plate can remove impurities attached to the inner wall of the filter element in real time; a guide rod on the rotary table slides in a guide groove of a supporting rod, the supporting rod is pushed to swing in a reciprocating mode, a driving hammer is driven to continuously knock a vibration block at the bottom of a filter element, vibration of the vibration block is transmitted to the filter element, fine impurities in filter element holes are shaken off through the vibration effect, and cleaning of the filter element is achieved cooperatively; the filter element is effectively prevented from being blocked and stable filtering efficiency is guaranteed.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of sewage treatment, and particularly relates to a multi-stage circulating filter device for community garden water pollution treatment. BACKGROUND

[0002] With the acceleration of urbanization, as an important part of the living environment of residents, the water quality of community garden water directly affects the living comfort and ecological environment quality. However, affected by factors such as surrounding domestic sewage leakage, surface runoff carrying pollutants, and water body self-eutrophication, the community garden water is prone to pollution problems such as sediment accumulation, microbial breeding, and water quality deterioration. Not only does it destroy the water landscape effect, but it also breeds harmful bacteria, endangering the health of residents. Therefore, various water body filter devices are widely used in community garden water pollution treatment to remove impurities and pollutants in the water body through physical filtration, sterilization and disinfection, and to improve water quality. However, the existing community garden water filter devices still have some problems in practical application. On the one hand, the filter core cleaning structure of most devices is single, relying only on single scraping or backwashing, which is difficult to completely remove the attached impurities on the inner wall of the filter core and the embedded impurities in the pores, easily leading to filter core blockage, affecting the stability of the filtration efficiency, and frequent replacement or maintenance of the filter core will increase the use cost. On the other hand, the filter bin switching mechanism of the existing device is complicated to operate, and multiple valves need to be adjusted to realize path switching, which is low in switching efficiency and often needs to be stopped during the switching process, which cannot guarantee the continuity of water treatment, and it is difficult to flexibly adapt to different seasons, such as the water quality change requirement of more sediment in the rainy season and more microorganisms in the dry season, and the applicability is poor. In order to solve the above problems, a filter device for community garden water pollution treatment with efficient filter core cleaning function, convenient filter path switching and continuous operation is needed. SUMMARY

[0003] The purpose of the present application is to solve the problems of single filter core cleaning structure of most devices, relying only on single scraping or backwashing, which is difficult to completely remove the attached impurities on the inner wall of the filter core and the embedded impurities in the pores, easily leading to filter core blockage, affecting the stability of the filtration efficiency, and frequent replacement or maintenance of the filter core will increase the use cost, and the filter bin switching mechanism of the existing device is complicated to operate, and multiple valves need to be adjusted to realize path switching, which is low in switching efficiency and often needs to be stopped during the switching process, which cannot guarantee the continuity of water treatment, and it is difficult to flexibly adapt to different seasons, such as the water quality change requirement of more sediment in the rainy season and more microorganisms in the dry season, and the applicability is poor, and a multi-stage circulating filter device for community garden water pollution treatment is proposed.

[0004] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0005] The utility model provides a multistage circulation filter device for small community garden water body pollution treatment, including first filter bin, one side of first filter bin is equipped with second filter bin, the opposite side fixedly connected with two first communication pipes of first filter bin and second filter bin symmetry, the opposite side fixedly connected with two second communication pipes of second filter bin and first filter bin symmetry, be equipped with water outlet bin between first filter bin and second filter bin, one of first communication pipe and second communication pipe is connected with the both ends of water outlet bin respectively, be equipped with water inlet bin between first filter bin and second filter bin, the both ends of another first communication pipe and second communication pipe are connected with water inlet bin respectively, water pump is fixedly installed above water inlet bin and water outlet bin, the inside of first filter bin and second filter bin all are installed filter core, the inside center position of first filter bin and second filter bin all are rotatably connected with the rotation rod, the one end of first filter bin and second filter bin all is fixedly installed waterproof motor, the output of waterproof motor is connected with the one end of rotation rod, the outer wall of rotation rod is equipped with scrape wall subassembly, scrape wall subassembly includes sleeve rod, the number of sleeve rod is three and surrounds fixedly connected in the outer wall of rotation rod, the end of sleeve rod is slidably connected with inner slide rod, the end of inner slide rod is fixedly connected with scraper, the inner wall of filter core is pasted with scraper, the inside of sleeve rod is installed compression spring in the inside of inner slide rod, the bottom of filter core is equipped with two groups of connecting springs symmetry, the number of each group of connecting springs is two, filter core is connected with two vibration blocks through two groups of connecting springs, the inner bottom of first filter bin and second filter bin all is equipped with knock assembly, knock assembly includes support frame, the inner wall of first filter bin and second filter bin is connected with two support frames in two knock assemblies respectively.

[0006] As a further description of the above technical solutions:

[0007] The side of the support frame is fixedly connected with a support block, the side of the support block is rotatably connected with a support rod, the middle position of the support rod is provided with a guide groove, the middle position of the support frame is rotatably connected with a rotating disc, the side of the rotating disc facing the support rod and close to the edge thereof is fixedly connected with a guide rod, the guide rod penetrates the guide groove, the end of the support rod is fixedly connected with a hammer, the hammer is located between the corresponding two vibration blocks.

[0008] As a further description of the above technical solutions:

[0009] The other side of the support frame is rotatably connected with a driven gear, the driven gear is connected with the rotating disc, the other end of the rotating rod penetrates the filter core and is fixedly connected with a driving gear at the end, the driving gear is engaged with the driven gear, the side of the support frame is fixedly installed with a protective cover, the protective cover covers the outside of the driving gear and the driven gear.

[0010] As a further description of the above technical solution:

[0011] The second communication pipe on one side of the water inlet bin is fixedly connected with a sterilization bin at the middle position thereof, and the inner wall of the sterilization bin is fixedly connected with an ultraviolet lamp.

[0012] As a further description of the above technical solution:

[0013] The second communication pipe on one side of the water outlet bin is fixedly connected with an aeration bin at the middle position thereof, and the inner wall on one side of the aeration bin is fixedly connected with an aeration pipe.

[0014] As a further description of the above technical solution:

[0015] The inner wall of the first communication pipe is rotatably connected with a first valve near the end position thereof, and the inner wall of the second communication pipe is rotatably connected with a second valve near the end position thereof.

[0016] As a further description of the above technical solution:

[0017] The number of the first valve and the second valve is two, and the corresponding two first valves and the corresponding two second valves are fixedly connected with a connecting rod, and the end of the two connecting rods is rotatably connected with a connecting rod.

[0018] As a further description of the above technical solution:

[0019] The end of the first filter bin and the second filter bin on the side opposite to the water inlet bin is fixedly connected with a blowdown pipe, and the inner wall of the blowdown pipe is rotatably connected with a blowdown valve.

[0020] As described above, due to the adoption of the above technical solution, the beneficial effects of the present application are: 1、In the present application, by setting the wall scraping assembly and the knocking assembly, when using the device, the waterproof motor controls the rotation of the rotating rod, the rotating rod synchronously drives the rotation of the outer sleeve rod of the wall scraping assembly, the compression spring in the outer sleeve rod pushes the inner sliding rod to extend, so that the scraper tightly adheres to the inner wall of the filter element and makes circumferential motion with the rotating rod, the scraper can remove the impurities attached to the inner wall of the filter element in real time, at the same time, the rotating rod drives the rotation of the driving gear, and the driving gear drives the rotation of the rotating disc through meshing transmission, the guide rod on the rotating disc slides in the guide groove of the supporting rod, pushes the supporting rod to reciprocate and drives the hammer to continuously knock the vibration block at the bottom of the filter element, the vibration of the vibration block is transmitted to the filter element, and the fine impurities in the pores of the filter element are shaken off through vibration, in this way, the cleaning of the filter element is realized, the filter element is effectively prevented from being blocked, and the stability of the filtering efficiency is ensured. 2、The first valve, the second valve, the connecting rod and the connecting rod are arranged, the connecting rod drives the synchronous rotation of the two connecting rods, and then the corresponding first valve and second valve are driven to switch the opening or closing state synchronously, the switching efficiency of the flow path between the water inlet bin, the water outlet bin and the first filter bin and the second filter bin is improved, and the device can realize continuous operation without stopping, whether it is the switching of the first filter bin and the second filter bin in season change or the cleaning and maintenance of a single bin, the whole filtering process does not need to be interrupted, the continuity of water body treatment is guaranteed, the stability and reliability of device operation are improved, different seasonal water quality filtering demands are adapted, and the applicability of the device is enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A three-dimensional structure schematic diagram of a multi-stage circulating filter device for small community garden water pollution treatment is provided for the present application.

[0022] Figure 2 A first connecting pipe and a second connecting pipe of a multi-stage circulating filter device for small community garden water pollution treatment are provided for the present application.

[0023] Figure 3 A first filter bin and a filter core connection structure diagram of a multi-stage circulating filter device for small community garden water pollution treatment is provided for the present application.

[0024] Figure 4 A filter core and a rotating rod position structure diagram of a multi-stage circulating filter device for small community garden water pollution treatment is provided for the present application.

[0025] Figure 5 A rotating rod and a wall scraping assembly connection structure diagram of a multi-stage circulating filter device for small community garden water pollution treatment is provided for the present application.

[0026] Figure 6 A filter core and a vibration block connection structure diagram of a multi-stage circulating filter device for small community garden water pollution treatment is provided for the present application.

[0027] Figure 7 A multi-stage circulating filter device for small community garden water pollution treatment is provided for the present application. Figure 6 An enlarged structure diagram of position A in the multi-stage circulating filter device for small community garden water pollution treatment is provided for the present application.

[0028] Figure 8 A driving gear and a driven gear meshing structure diagram of a multi-stage circulating filter device for small community garden water pollution treatment is provided for the present application.

[0029] LEGEND:

[0030] 1, first filter bin; 2, second filter bin; 3, first communication pipe; 4, second communication pipe; 5, water outlet bin; 6, water inlet bin; 7, water pump; 8, filter core; 9, rotating rod; 10, waterproof motor; 11, wall scraping assembly; 1101, outer sleeve rod; 1102, inner sliding rod; 1103, scraper; 1104, compression spring; 12, connecting spring; 13, vibration block; 14, knocking assembly; 1401, support frame; 1402, support block; 1403, support rod; 1404, guide groove; 1405, rotating disc; 1406, guide rod; 1407, hammer; 15, driven gear; 16, driving gear; 17, protective cover; 18, sterilization bin; 19, ultraviolet lamp; 20, aeration bin; 21, aeration pipe; 22, first valve; 23, second valve; 24, connecting rod; 25, connecting rod; 26, sewage pipe; 27, sewage valve. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] When it is specifically implemented, such as Figures 1-8 The present application provides a technical solution:

[0033] A multi-stage circulating filter device for treating small community garden water pollution, comprising a first filter bin 1, a second filter bin 2 is arranged on one side of the first filter bin 1, two first communication pipes 3 are symmetrically and fixedly connected to the opposite side of the first filter bin 1 and the second filter bin 2, two second communication pipes 4 are symmetrically and fixedly connected to the opposite side of the second filter bin 2 and the first filter bin 1, a sterilization bin 18 is fixedly connected to the middle part of the second communication pipe 4 on one side of the water inlet bin 6, ultraviolet lamps 19 are fixedly connected between the inner walls of the sterilization bin 18, when the second filter bin 2 is switched to work, the water to be treated flows along the second communication pipe 4 in the open state, the ultraviolet lamps 19 are turned on to sterilize the water when the water flows through the sterilization bin 18, the sterilization effect of the ultraviolet lamps 19 removes bacteria and other microorganisms in the water, improves the water quality purification effect, an aeration bin 20 is fixedly connected to the middle part of the second communication pipe 4 on one side of the water outlet bin 5, an aeration pipe 21 is fixedly connected to the inner wall on one side of the aeration bin 20, the water filtered by the filter core 8 of the second filter bin 2 flows through the aeration bin 20 in the process of entering the water outlet bin 5 through the second communication pipe 4, the air supply system of the aeration pipe 21 is turned on to introduce air into the water, the aeration effect can significantly improve the dissolved oxygen content of the water, improve the water quality of the water, and improve the ecological effect of the treated water;

[0034] The inner wall of the first communication pipe 3 is rotationally connected with the first valve 22 near the end position thereof, and the inner wall of the second communication pipe 4 is rotationally connected with the second valve 23 near the end position thereof. The number of the first valve 22 and the second valve 23 is two. The corresponding two first valves 22 and the corresponding two second valves 23 are fixedly connected with the connecting rod 24. The end of the two connecting rods 24 is rotationally connected with the connecting rod 25. The manual control connecting rod 25 can drive the synchronous rotation of the two connecting rods 24, and further drive the synchronous rotation of the corresponding two first valves 22 and two second valves 23, so as to realize the switching of the flow path between the water inlet chamber 6, the water outlet chamber 5 and the first filter chamber 1 and the second filter chamber 2. The operation is simple and convenient, and it is not necessary to adjust the first valve 22 or the second valve 23 one by one, which improves the flow switching efficiency. At the same time, by means of the switching function of the first valve 22 or the second valve 23, the filtering operation can be realized without stopping. When the first filter chamber 1 or the second filter chamber 2 needs to be cleaned or maintained, it only needs to be switched by the connecting rod 25, without interrupting the whole filtering process.

[0035] The first filter chamber 1 and the second filter chamber 2 are provided with the water outlet chamber 5. One of the first communication pipe 3 and the second communication pipe 4 is connected with the two ends of the water outlet chamber 5, respectively. The first filter chamber 1 and the second filter chamber 2 are provided with the water inlet chamber 6. The other of the first communication pipe 3 and the second communication pipe 4 is connected with the two ends of the water inlet chamber 6, respectively. The water pump 7 is fixedly installed above the water inlet chamber 6 and the water outlet chamber 5. The side opposite to the first filter chamber 1 and the second filter chamber 2 is fixedly connected with the blowdown pipe 26 near one end of the water inlet chamber 6. The blowdown valve 27 is rotationally connected between the inner wall of the blowdown pipe 26. The blowdown valve 27 of the first filter chamber 1 or the second filter chamber 2 can be manually opened. After the impurities accumulated in the chamber are discharged along the blowdown pipe 26, the blowdown valve 27 is closed. The impurities accumulated in the chamber can be cleaned in time, so as to avoid the influence of the impurities accumulation on the filtering effect and the running stability of the device.

[0036] The first filter bin 1 and the second filter bin 2 are internally provided with filter cores 8, and the first filter bin 1 and the second filter bin 2 are rotationally connected with rotating rods 9 at the central positions of the interiors, and the first filter bin 1 and the second filter bin 2 are fixedly provided with waterproof motors 10 at one end, the output end of the waterproof motor 10 is connected with one end of the rotating rod 9, the outer wall of the rotating rod 9 is provided with a wall scraping assembly 11, the wall scraping assembly 11 comprises sleeve rods 1101, the number of the sleeve rods 1101 is three and the sleeve rods 1101 are fixedly connected around the outer wall of the rotating rod 9, the end of the sleeve rod 1101 is slidably connected with an inner sliding rod 1102, the end of the inner sliding rod 1102 is fixedly connected with a scraper 1103, the scraper 1103 is attached to the inner wall of the filter core 8, and the inside of the sleeve rod 1101 is provided with compression springs 1104 at the inner side of the inner sliding rod 1102, because the wall scraping assembly 11 is arranged, the waterproof motor 10 drives the rotating rod 9 to rotate, the rotating rod 9 drives the wall scraping assembly 11 to rotate, and the inner sliding rod 1102 drives the scraper 1103 to always tightly attach to the inner wall of the filter core 8 under the action of the compression spring 1104, the scraper 1103 moves along the inner wall of the filter core 8 with the continuous rotation of the rotating rod 9, the impurities attached to the inner wall of the filter core 8 are scraped and cleaned, and the filter core 8 is prevented from being blocked by the impurities;

[0037] The bottom of the filter core 8 is symmetrically provided with two groups of connecting springs 12, the number of each group of connecting springs 12 is two, the filter core 8 is soft-connected with two vibration blocks 13 through the two groups of connecting springs 12, when the hammer 1407 reciprocatingly strikes the vibration block 13, the vibration block 13 transmits the vibration to the filter core 8 through the connecting spring 12, so that the filter core 8 is slightly vibrated, the soft connection of the connecting spring 12 can buffer the striking force, avoid the damage to the filter core 8 caused by the hard contact, and ensure that the vibration can be effectively transmitted to the whole filter core 8, the slight vibration of the filter core 8 can shake off the fine impurities adsorbed in the pores, further prevent the filter core 8 from being blocked, and ensure the stable filtering efficiency;

[0038] Both the first filter chamber 1 and the second filter chamber 2 are equipped with striking components 14 at their inner bottoms. Each striking component 14 includes a support frame 1401. The two support frames 1401 of the two striking components 14 are respectively connected to the inner walls of the first filter chamber 1 and the second filter chamber 2. A support block 1402 is fixedly connected to one side of the support frame 1401, and a support rod 1403 is rotatably connected to one side of the support block 1402. A guide groove 1404 is provided in the middle of the support rod 1403. A turntable 1405 is rotatably connected to the middle of the support frame 1401. A guide rod 1406 is fixedly connected to the side of the turntable 1405 facing the support rod 1403 and near its edge. The guide rod 1406 passes through the guide groove 1404. A hammer 1407 is fixedly connected to the end of the support rod 1403. The hammer 1407 is located between two corresponding vibrating blocks 13. The rotating rod 9 drives the drive gear 16 to rotate, and the drive gear 16 drives the turntable through the driven gear 15. When 1405 rotates, the turntable 1405 drives the guide rod 1406 to slide within the guide groove 1404, guiding the support rod 1403 and pushing the support rod 1403 to reciprocate on the side of the support block 1402. This, in turn, drives the hammer 1407 to reciprocate, continuously striking the two vibrating blocks 13 at the bottom of the filter element 8. No additional power source is required, saving energy. The other side of the support frame 1401 is rotatably connected to the driven gear 15, which is connected to the turntable 1405. The other end of the rotating rod 9 passes through the filter element 8 and is fixedly connected to the end of the driving gear 16. The driving gear 16 meshes with the driven gear 15. A protective cover 17 is fixedly installed on the side of the support frame 1401, covering the driving gear 16 and the driven gear 15. The protective cover 17 can prevent water impurities from entering the interior of the driving gear 16 and the driven gear 15, avoiding impurities from affecting the meshing of the driving gear 16 and the driven gear 15, and ensuring the stable operation of the gear transmission.

[0039] Working principle: When using this device, manually operate the connecting rod 25 to drive the two connected rods 24 to rotate synchronously. The connecting rods 24 then drive the corresponding two first valves 22 and two second valves 23 to rotate, thereby realizing independent flow switching between the inlet chamber 6 and outlet chamber 5 and the first filter chamber 1 and second filter chamber 2. During the rainy season, when the water contains a lot of sediment, the connecting rod 25 can be operated to open the first valve 22 corresponding to the first filter chamber 1 and close the second valve 23 corresponding to the second filter chamber 2, so that the first filter chamber 1 is solely responsible for sediment filtration. During the dry season, when the water contains a lot of microorganisms, the system can switch to the second filter chamber 2, that is, open the second valve 23 corresponding to the second filter chamber 2 and close the first valve 22 corresponding to the first filter chamber 1, adapting to the water quality filtration needs during the dry season. When using the second filter chamber 2 to start water filtration... During operation, the water in the community garden to be treated enters the inlet chamber 6 and flows along the open second connecting pipe 4. When it flows through the sterilization chamber 18, the ultraviolet lamp 19 is turned on to sterilize the bacteria and other microorganisms in the water. After sterilization, the water continues to enter the second filter chamber 2. At the same time, the waterproof motor 10 is started to drive the rotating rod 9 to rotate. During the rotation of the rotating rod 9, the three outer sleeve rods 1101 fixed around the outer wall will rotate synchronously. The compression spring 1104 inside the outer sleeve rod 1101 will continuously apply elastic thrust, pushing the inner slide rod 1102 to slide outward, so that the scraper 1103 at the end of the inner slide rod 1102 is always tightly attached to the inner wall of the filter element 8. As the rotating rod 9 continues to rotate, the scraper 1103 moves in a circle along the inner wall of the filter element 8 to scrape and clean the impurities attached to the inner wall of the filter element 8.

[0040] While the scraper 1103 removes impurities, the far end of the rotating rod 9 drives the drive gear 16 to rotate. The drive gear 16 drives the driven gear 15 to rotate synchronously. The driven gear 15 drives the turntable 1405 to rotate. When the turntable 1405 rotates, the guide rod 1406 at its edge slides along the guide groove 1404 in the support rod 1403. Under the sliding action of the guide rod 1406, the support rod 1403 will swing back and forth on the side of the support block 1402. The other end of the support rod 1403 drives the hammer 1407 to move back and forth, continuously striking the two vibrating blocks 13 at the bottom of the filter element 8. With the help of the vibration force, the filter element 8 will vibrate slightly, shaking off the impurities in the pores of the filter element 8. The water filtered by filter element 8 will enter the outlet chamber 5 through the second connecting pipe 4 on the other side of the second filter chamber 2. During the flow, it will pass through the aeration chamber 20 and turn on the air supply system of the aeration pipe 21. The aeration pipe 21 will introduce air into the water, and the dissolved oxygen content of the water will be increased through aeration, thus improving the water quality. After aeration, the water will be discharged from the outlet chamber 5, realizing the pollution control of the water body in the community garden. The filtration operation mode of the first filter chamber 1 is the same as that of the second filter chamber 2. When sewage discharge is required, the sewage discharge valve 27 on the sewage discharge pipe 26 on the side of the corresponding first filter chamber 1 or second filter chamber 2 will be opened, and the impurities accumulated in the chamber will be discharged along the sewage discharge pipe 26. After the sewage discharge is completed, the sewage discharge valve 27 can be closed.

Claims

1. A multi-stage circulating filtration device for treating water pollution in residential gardens, characterized in that, include: A first filter chamber (1) is provided on one side of the first filter chamber (1), and a second filter chamber (2) is provided on one side of the first filter chamber (1). Two first connecting pipes (3) are symmetrically and fixedly connected to the opposite side of the first filter chamber (1) and the second filter chamber (2). Two second connecting pipes (4) are symmetrically and fixedly connected to the opposite side of the second filter chamber (2) and the first filter chamber (1). A water outlet chamber (5) is provided between the first filter chamber (1) and the second filter chamber (2). One of the first connecting pipes (3) and the second connecting pipe (4) are respectively connected to the two ends of the water outlet chamber (5). The first filter chamber (1) and the second filter chamber (2) are connected to the second filter chamber (2). A water inlet chamber (6) is provided between the filter chambers (2). Another first connecting pipe (3) and a second connecting pipe (4) are respectively connected to the two ends of the water inlet chamber (6). A water pump (7) is fixedly installed above the water inlet chamber (6) and the water outlet chamber (5). Filter elements (8) are installed inside the first filter chamber (1) and the second filter chamber (2). A rotating rod (9) is rotatably connected to the center of the interior of the first filter chamber (1) and the second filter chamber (2). A waterproof motor (10) is fixedly installed at one end of the first filter chamber (1) and the second filter chamber (2). The output end of the filter element (8) is connected to one end of the rotating rod (9). The outer wall of the rotating rod (9) is provided with a scraping assembly (11). The scraping assembly (11) includes an outer rod (1101). There are three outer rods (1101) and they are fixedly connected around the outer wall of the rotating rod (9). The end of the outer rod (1101) is slidably connected to an inner slide rod (1102). The end of the inner slide rod (1102) is fixedly connected to a scraper (1103). The scraper (1103) is attached to the inner wall of the filter element (8). The inside of the outer rod (1101) is located in the inner slide rod (1102). A compression spring (1104) is installed on the inner side of the filter element (8). Two sets of connecting springs (12) are symmetrically arranged at the bottom of the filter element (8). There are two connecting springs (12) in each set. The filter element (8) is softly connected to two vibrating blocks (13) through the two sets of connecting springs (12). The bottom of the first filter chamber (1) and the second filter chamber (2) are provided with a knocking component (14). The knocking component (14) includes a support frame (1401). The two support frames (1401) in the two knocking components (14) are respectively connected to the inner walls of the first filter chamber (1) and the second filter chamber (2).

2. The multi-stage circulating filtration device for treating water pollution in residential gardens according to claim 1, characterized in that, A support block (1402) is fixedly connected to one side of the support frame (1401), and a support rod (1403) is rotatably connected to one side of the support block (1402). A guide groove (1404) is provided in the middle of the support rod (1403). A turntable (1405) is rotatably connected to the middle of the support frame (1401). A guide rod (1406) is fixedly connected to the side of the turntable (1405) facing the support rod (1403) and near its edge. The guide rod (1406) passes through the guide groove (1404). A hammer (1407) is fixedly connected to the end of the support rod (1403). The hammer (1407) is located between two corresponding vibrating blocks (13).

3. A multi-stage circulating filtration device for treating water pollution in residential gardens according to claim 2, characterized in that, A driven gear (15) is rotatably connected to the other side of the support frame (1401). The driven gear (15) is connected to the turntable (1405). The other end of the rotating rod (9) passes through the filter element (8) and is fixedly connected to the end of the driving gear (16). The driving gear (16) meshes with the driven gear (15). A protective cover (17) is fixedly installed on the side of the support frame (1401). The protective cover (17) covers the driving gear (16) and the driven gear (15).

4. A multi-stage circulating filtration device for treating water pollution in residential gardens according to claim 1, characterized in that, A sterilization chamber (18) is fixedly connected to the middle part of the second connecting pipe (4) on one side of the water inlet chamber (6), and an ultraviolet lamp (19) is fixedly connected between the inner walls of the sterilization chamber (18).

5. A multi-stage circulating filtration device for treating water pollution in residential gardens according to claim 1, characterized in that, An aeration chamber (20) is fixedly connected to the middle part of the second connecting pipe (4) on one side of the water outlet chamber (5), and an aeration pipe (21) is fixedly connected to the inner wall on one side of the aeration chamber (20).

6. A multi-stage circulating filtration device for treating water pollution in residential gardens according to claim 1, characterized in that, A first valve (22) is rotatably connected between the inner walls of the first connecting pipe (3) near its end, and a second valve (23) is rotatably connected between the inner walls of the second connecting pipe (4) near its end.

7. A multi-stage circulating filtration device for treating water pollution in residential gardens according to claim 6, characterized in that, There are two of each of the first valve (22) and the second valve (23). A connecting rod (24) is fixedly connected between each of the two first valves (22) and the two second valves (23). A connecting rod (25) is rotatably connected to the end of each connecting rod (24).

8. A multi-stage circulating filtration device for treating water pollution in residential gardens according to claim 1, characterized in that, The first filter chamber (1) and the second filter chamber (2) are both fixedly connected to the end of the water inlet chamber (6) on opposite sides, and a drain pipe (26) is rotatably connected between the inner walls of the drain pipe (26).

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