Automatic cleaning water filter

Abstract

The present invention relates to the technical field of mineral water filtration, and in particular to an automatic cleaning water filter. It includes a controller and a mounting plate, the controller is mounted on the outer wall of the shell, two mounting plates are symmetrically connected to the inner wall of the shell, and a vertical cylinder is connected between the two mounting plates at circumferential intervals, circular holes are circumferentially spaced on the vertical cylinder, and filter plates are also vertically spaced in the vertical cylinder. A hollow frame is provided inside the shell, and a notch is provided on the side of the hollow frame. The present invention can set three layers of filter media inside the vertical cylinder through the cooperation of the vertical cylinder, the filter plate and the hollow frame to ensure the filtering effect on the water body, and can also ensure that when the filter media is cleaned in the storage space, there is enough space for turning over. At the same time, the filter media in each storage space do not contact each other, and there is no problem that the lower filter medium will be subjected to the pressure of the upper filter medium, so that the filter medium can be cleaned more cleanly and the filtering performance of the filter is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of mineral water filtration, in particular to an automatic cleaning water filter. Background Art

[0002] In the mineral water production industry, the purity of water is directly related to the quality of the product and the health of consumers. In order to ensure the safety and purity of water, multi-stage filtration is often used in the water treatment process to remove various impurities in the water. As one of the key equipment in this process, the sand filter plays a vital role. The sand filter is mainly used to remove large particle impurities such as suspended matter, silt and algae in the water to improve the efficiency and effect of subsequent treatment steps.

[0003] In the existing technology, the sand filter usually has one or more layers of filter media inside to filter the water. As the filtering process continues, more impurities will gradually accumulate on the surface of the filter medium. These impurities will not only reduce the filtering efficiency, but may also affect the filtered water quality, so the filter medium needs to be backwashed and cleaned regularly. The traditional backwashing method is to send high-pressure water flow upward from the bottom of the filter medium to remove impurities attached to the filter medium. This method has a good cleaning effect on the upper filter medium, but for the lower filter medium, due to the influence of the pressure of the upper filter medium and the water flow path, it is difficult to achieve the ideal cleaning effect, which will cause the filtering performance of the entire sand filter to decrease. Summary of the invention

[0004] In view of this, the present invention provides an automatic cleaning water filter, which can overcome the disadvantage of the existing sand filter that when backwashing, the lower filter medium is affected by the pressure of the upper filter medium and the water flow path, making it difficult to achieve an ideal cleaning effect, which will lead to a decrease in the filtering performance of the sand filter.

[0005] The technical solution is as follows: an automatic cleaning water filter, comprising a mounting seat, an outer shell and an inlet pipe, the mounting seat is connected to the outer shell, the inlet pipe, the outlet pipe and the sewage pipe are connected to the outer shell, and also comprises a controller and a mounting plate, the controller is mounted on the outer wall of the outer shell, two mounting plates are symmetrically connected to the inner wall of the outer shell, and vertical cylinders are circumferentially connected between the two mounting plates, circular holes are circumferentially spaced on the vertical cylinders, and filter plates are also vertically spaced in the vertical cylinders, a hollow frame is provided inside the outer shell, and a notch is provided on the side of the hollow frame, a switching assembly for driving the hollow frame to rotate so that the notch is switched to the top of any vertical cylinder, a sealing strip is connected to the bottom of the hollow frame, the bottom of the sealing strip is in contact with the top of the upper mounting plate, a stirring rod is also rotatably connected in the vertical cylinder, and a rotating assembly for driving the stirring rod to rotate is also provided in the outer shell.

[0006] Preferably, the switching assembly includes a driving motor and a rotating rod, the driving motor is installed at the bottom of the shell, the rotating rod is connected to the output shaft of the driving motor, the rotating rod rotates through the shell and the mounting plate, and the upper end of the rotating rod is connected to the hollow frame.

[0007] Preferably, the rotating assembly includes a block, a connecting frame, a guide rail, a connecting rod, a protective shell, a servo motor and a rotating block, the block is connected to the lower end of the stirring rod, the connecting frame is connected to the rotating rod, the guide rail is connected to the connecting frame, and a notch is provided on the guide rail, the block is located in the guide rail, the connecting rod is connected to the rotating rod, the protective shell is connected to the connecting rod, and the protective shell is located in the notch, the servo motor is installed in the protective shell, and the output shaft of the servo motor rotates through the top of the protective shell, the rotating block is connected to the output shaft of the servo motor, and a through groove is provided on the rotating block.

[0008] Preferably, both ends of the through slot in the extending direction are provided with inclined surfaces so that the block can slide along the guide rail and enter the through slot.

[0009] Preferably, it further comprises a telescopic rod and a positioning frame, wherein the telescopic rod is symmetrically connected to the bottom of the vertical cylinder, the positioning frame is connected to the lower end of the telescopic rod, and a limiting groove is provided at the bottom of the positioning frame, and the block is located in the limiting groove.

[0010] Preferably, it also includes a hollow ring, a water pump, a diverter pipe and a water suction pipe. The hollow rings are connected to the vertical cylinder at intervals, and the inner wall of the hollow ring is circumferentially spaced with through holes. The interior of the hollow ring can be connected to the interior of the vertical cylinder through the through holes and the circular holes. The water pump is installed on the top of the lower mounting plate, the end of the diverter pipe is connected to the water outlet of the water pump, and the hollow ring is connected to the end of the diverter pipe. The water suction pipe is connected to the water inlet of the water pump, and the lower end of the water suction pipe passes through the bottom of the lower mounting plate.

[0011] Preferably, it further comprises an arc plate and a bubble generator, wherein the two arc plates are respectively connected to the rotating rod and the protective shell, and the bubble generator is mounted on the arc plate.

[0012] Preferably, a gap is left between the ends of the two arc-shaped plates, and the width of the gap is matched with the diameter of the rotating shaft of the stirring rod.

[0013] The beneficial effects of the present invention are as follows: 1. The present invention can arrange three layers of filter media inside the vertical cylinder through the cooperation of the vertical cylinder, the filter plate and the hollow frame to ensure the filtering effect on the water body, and can also ensure that when the filter media is cleaned in the storage space, there is enough space for turning over. At the same time, the filter media in each storage space do not contact each other, and there is no problem that the lower filter medium will be subjected to the pressure of the upper filter medium, so that the filter medium can be cleaned more cleanly and the filtering performance of the filter is guaranteed.

[0014] 2. The present invention can ensure that the filter media in four vertical cylinders are involved in the filtering work at all times, and the filter media in the other vertical cylinder is being cleaned. This can not only ensure the continuity of the filtering work, but also automatically complete the cleaning work of the filter media, thereby improving work efficiency.

[0015] 3. The present invention cooperates with the telescopic rod and the positioning frame to limit the block when the vertical cylinder is taken out to replace the internal filter medium, so as to facilitate the subsequent alignment of the block with the guide rail and facilitate the placement of the vertical cylinder without affecting the rotation of the block. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a cross-sectional view of the housing of the present invention.

[0018] Figure 3 It is a schematic diagram of the specific structure of the rotating assembly of the present invention.

[0019] Figure 4 It is a schematic diagram of the separation structure of the rotating assembly of the present invention.

[0020] Figure 5 The figure is a schematic diagram of the installation of the telescopic rod and the positioning frame of the present invention.

[0021] Figure 6 The figure is a schematic diagram of the specific structure of the telescopic rod and the positioning frame of the present invention.

[0022] Figure 7 The figure is a schematic diagram of the installation of the hollow ring, water pump, diverter pipe and water pump pipe of the present invention.

[0023] Figure 8 It is a schematic diagram of the specific structure of the hollow ring of the present invention.

[0024] Fig. 9 It is a schematic diagram of the installation of the arc plate and the bubble generator of the present invention.

[0025] Explanation of the accompanying drawings: 1-mounting seat, 2-housing, 201-water inlet pipe, 202-water outlet pipe, 203-sewage pipe, 3-controller, 4-mounting plate, 5-vertical cylinder, 501-circular hole, 6-filter plate, 7-hollow frame, 701-notch, 8-sealing strip, 9-stirring rod, 10-driving motor, 11-rotating rod, 12-block, 13-connecting frame, 14-guide rail, 1401-notch, 15-connecting rod, 16-protective shell, 17-servo motor, 18-rotating block, 1801-through groove, 19-telescopic rod, 20-positioning frame, 2001-limiting groove, 21-hollow ring, 2101-through hole, 22-water pump, 23-diverter pipe, 24-water pump, 25-arc plate, 26-bubble generator, 27-gap. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0027] Embodiment: A self-cleaning water filter, such as Figure 1-Figure 4As shown, it includes a mounting base 1, a shell 2, a water inlet pipe 201, a water outlet pipe 202 and a sewage pipe 203. The mounting base 1 is connected to the shell 2. The top cover of the shell 2 is detachable, which is convenient for subsequent replacement of the filter medium. The middle of the top of the shell 2 is connected to the water inlet pipe 201, the lower right part of the shell 2 is connected to the water outlet pipe 202, and the upper right part of the shell 2 is connected to the sewage pipe 203. It also includes a controller 3, a mounting plate 4, a vertical cylinder 5, a filter plate 6, a hollow frame 7, a sealing strip 8, a stirring rod 9, a switching component and a rotating component. The controller 3 is installed in the middle of the front side of the shell 2. The controller 3 is used to control all electrical components of the device to operate according to a specified program. During operation, mounting plates 4 are connected to the upper and lower sides of the shell 2. The two mounting plates 4 are located between the water inlet pipe 201 and the water outlet pipe 202. Five mounting holes are circumferentially spaced apart on the two mounting plates 4, and a vertical cylinder 5 is placed between the two vertically aligned mounting holes. The number of vertical cylinders 5 is five, and the inner wall of the mounting hole on the lower mounting plate 4 is in the shape of two steps, which is used to support the bottom of the vertical cylinder 5 to prevent the vertical cylinder 5 from falling downward. A plurality of circular holes 501 are circumferentially spaced apart on the vertical cylinder 5, and four filter plates 6 are vertically spaced apart and connected inside the vertical cylinder 5. The four filter plates 6 divide the internal space of the vertical cylinder 5 into three storage spaces for storing filter media. Anthracite is placed in the storage space, quartz sand is placed in the middle storage space, and fine-grained quartz sand is placed in the lower storage space. The volume of the filter medium is smaller than the volume of the storage space, so that the filter medium has enough room to move in the storage space. The diameters of various filter media are larger than the diameter of the circular hole 501, thereby preventing the filter medium from leaking out through the circular hole 501. A hollow frame 7 is provided on the upper side of the inner part of the shell 2. The outer diameter of the hollow frame 7 is smaller than the inner diameter of the shell 2, so that a gap is left between the outer wall of the hollow frame 7 and the inner wall of the shell 2. A connecting pipe is provided on the top of the hollow frame 7. The upper end of the connecting pipe is connected to the water inlet pipe 201, and a notch 701 is provided on the right side of the hollow frame 7. The notch 701 is located directly above one of the vertical cylinders 5. Four water holes are spaced circumferentially at the bottom of the hollow frame 7. The four water holes correspond to the remaining four vertical cylinders 5 one by one, so that the remaining four vertical cylinders 5 are connected to the inside of the hollow frame 7. A sealing strip 8 is connected to the bottom of the hollow frame 7, and the bottom of the sealing strip 8 is in contact with the top of the upper mounting plate 4. A stirring rod 9 is rotatably connected in each vertical cylinder 5, and the lower end of the rotating shaft of the stirring rod 9 passes through the bottom of the vertical cylinder 5. A switching component for driving the hollow frame 7 to rotate is also provided on the outer shell 2, so that the notch 701 can be switched to directly above any vertical cylinder 5. A rotating component for driving the stirring rod 9 to rotate is also provided in the outer shell 2.

[0028] like Figure 2 and Figure 3As shown, the switching assembly includes a driving motor 10 and a rotating rod 11. The driving motor 10 is connected to the middle of the bottom of the outer shell 2, and the rotating rod 11 is connected to the output shaft of the driving motor 10. The rotating rod 11 rotates through the middle of the bottom of the outer shell 2 and the middle of the two mounting plates 4, and the upper end of the rotating rod 11 is connected to the bottom of the hollow frame 7 by bolts.

[0029] like Figure 2-Figure 4 As shown, the rotating assembly includes a block 12, a connecting frame 13, a guide rail 14, a connecting rod 15, a protective shell 16, a servo motor 17 and a rotating block 18. The lower end of each stirring rod 9 is connected to the block 12, the lower part of the rotating rod 11 is connected to the connecting frame 13, and the connecting frame 13 is connected to the guide rail 14. The shape of the guide rail 14 is annular, each block 12 is located inside the guide rail 14, and a notch 1401 is opened on the right side of the guide rail 14. The lower part of the rotating rod 11 is also connected to the connecting rod 15, and the connecting rod 15 is located above the connecting frame 13. , and a protective shell 16 is connected to the connecting rod 15, the protective shell 16 is located in the notch 1401, the servo motor 17 is installed in the protective shell 16, and the output shaft of the servo motor 17 rotates and passes through the top of the protective shell 16, and a rotating block 18 is connected to the output shaft of the servo motor 17, and a through groove 1801 is opened on the upper part of the rotating block 18, the width of the through groove 1801 is adapted to the width of the block 12, and both ends of the through groove 1801 in the extension direction are provided with inclined surfaces, so that the block 12 can slide along the guide rail 14 and can smoothly enter the through groove 1801.

[0030] Initially, each storage space is equipped with a certain amount of filter medium; first, the sewage pipe 203 is connected to the pump body (not shown in the figure), and then the water body can be injected into the hollow frame 7 through the water inlet pipe 201. Under the sealing effect of the sealing strip 8, the water body in the hollow frame 7 will only enter four of the vertical cylinders 5 and flow downward along the vertical cylinder 5. At this time, the various filter media and filter plates 6 in the vertical cylinder 5 can filter the water body, and the filtered water will fall down to the bottom of the outer shell 2. At this time, the filtered water can be discharged outward through the outlet pipe 202. As the filtering work proceeds, since the drainage volume of the outlet pipe 202 is less than the water intake volume of the inlet pipe 201, the filtered water in the outer shell 2 will gradually increase. When the filtered water reaches a certain amount, the water will flow into another vertical cylinder 5 (the five vertical cylinders 5 that do not participate in the filtering work) and fill it up. At this time, the pump body connected to the sewage pipe 203 is started to generate suction, which can draw out the water in the vertical cylinder 5 that does not participate in the filtering work, so that the water flows upward quickly, thereby flushing the filter medium and filter plate 6 in the vertical cylinder 5. At the same time, the servo motor 17 can be controlled by the controller 3 to start working. The servo motor 17 drives the rotating block 18 to rotate. The through groove 1801 on the rotating block 18 cooperates with the block 12. When the inner wall of the through groove 1801 contacts the outer wall of the block 12, the rotation of the rotating block 18 will drive the block 12 to rotate together, thereby driving the vertical cylinder 5 that does not participate in the filtering work. The stirring rod 9 in the vertical cylinder 5 for filtering work rotates, so that the filter medium in the vertical cylinder 5 not participating in the filtering work can be stirred. Since the filter medium in each storage space is not full, the filter medium has enough activity space in each storage space for flipping, and the filter media in each storage space do not contact each other, and there is no problem that the lower filter medium will be pressurized by the upper filter medium, so that the filter medium can be cleaned more cleanly, and the sewage will be pumped out by the pump body through the sewage pipe 203; when it is necessary to clean the filter medium in another vertical cylinder 5, the servo motor 17 can be controlled by the controller 3 to stop working, and then the drive motor 10 can be controlled by the controller 3 to start working. The driving motor 10 can drive the rotating rod 11 to rotate a specified angle, and the rotating rod 11 can drive the hollow frame 7, the connecting frame 13, the guide rail 14, the connecting rod 15, the protective shell 16, the servo motor 17 and the rotating block 18 to rotate a specified angle. At this time, the notch 701 on the hollow frame 7 will rotate to the top of the next vertical cylinder 5, and the cleaned vertical cylinder 5 will be connected with the inside of the hollow frame 7. At this time, the corresponding block 12 on the next vertical cylinder 5 will also be embedded in the through groove 1801 of the rotating block 18, and then repeat the above operation to clean the filter medium in the next vertical cylinder 5. The sewage generated by the cleaning can flow to the sewage pipe 203 through the gap between the outer wall of the hollow frame 7 and the inner wall of the shell 2 for discharge;Since the servo motor 17 can accurately control the number of rotations and angles of the block 12, whenever the servo motor 17 stops working, the block 12 can be restored to its initial state so as to dock with the through slot 1801 of the rotating block 18 next time. In this way, four vertical cylinders 5 can participate in the filtering work and one vertical cylinder 5 can be cleaned at all times, which can not only ensure the continuity of the filtering work, but also automatically complete the cleaning of the filter medium and the filter plate 6; when the filter medium in the vertical cylinder 5 needs to be replaced, the top cover of the outer shell 2 can be disassembled first, and then the hollow frame 7 can be disassembled, and then each vertical cylinder 5 can be taken out and the filter medium inside can be replaced. ;

[0031] like Figure 5 and Figure 6 As shown, it also includes a telescopic rod 19 and a positioning frame 20. Two telescopic rods 19 are symmetrically connected to the bottom of each vertical tube 5, and a positioning frame 20 is connected between the lower ends of the two telescopic rods 19. A limiting groove 2001 is opened at the bottom of the positioning frame 20. The block 12 is located in the limiting groove 2001, which is used to limit the block 12. Inclined surfaces are provided on both sides of the bottom of the positioning frame 20.

[0032] When the rotating block 18 rotates to dock with a block 12, the rotating block 18 will first contact the positioning frame 20 corresponding to the block 12. Since the bottom of the positioning frame 20 has an inclined surface, the rotating block 18 will squeeze the positioning frame 20 to move upward, shortening the telescopic rod 19, separating the limiting groove 2001 from the block 12, and releasing the limiting of the block 12. Next, the through slot 1801 of the rotating block 18 is aligned with the block 12, and the rotating block 18 can freely drive the block 12 to rotate without being affected by the positioning frame 20; when the through slot 1801 of the rotating block 18 is separated from the block 12, the rotating block 18 will also be separated from the positioning frame 20. At this time, the positioning frame 20 will fall down and reset due to gravity, and the telescopic rod 19 will extend to allow the block 12 to be re-embedded in the limiting slot 2001, thereby limiting the block 12; when the column 5 is taken out to replace the filter medium, the positioning frame 20 can prevent the block 12 from rotating at will, thereby facilitating the alignment of the block 12 and the guide rail 14 when the column 5 is put back in place.

[0033] like Figure 7 and Figure 8As shown, it also includes a hollow ring 21, a water pump 22, a diverter pipe 23 and a water suction pipe 24. The outer wall of each vertical cylinder 5 is vertically connected with multiple hollow rings 21, and the inner wall of the hollow ring 21 is circumferentially spaced with through holes 2101. The through holes 2101 correspond to the circular holes 501 one by one and are horizontally aligned, so that the interior of the hollow ring 21 can be connected with the interior of the vertical cylinder 5 through the through holes 2101 and the circular holes 501. Five water pumps 22 are circumferentially installed on the top of the lower mounting plate 4. The water pumps 22 correspond to the vertical cylinder 5 one by one. The water outlets of the five water pumps 22 are connected with diverter pipes 23, and the ends of the diverter pipes 23 are connected with the hollow rings 21 on the corresponding vertical cylinder 5. The water inlets of the five water pumps 22 are connected with water suction pipes 24, and the lower ends of the water suction pipes 24 pass through the bottom of the lower mounting plate 4.

[0034] When the filter medium inside one of the vertical cylinders 5 is being cleaned, the corresponding water pump 22 can be controlled by the controller 3 to start working. The water pump 22 can extract the filtered water through the pumping pipe 24, and transport the filtered water to the corresponding hollow ring 21 through the pumping pipe 24. Under the action of pressure, the water in the hollow ring 21 can be sprayed into the interior of the vertical cylinder 5 through the through hole 2101 and the circular hole 501, thereby improving the cleaning effect of the filter medium inside the vertical cylinder 5.

[0035] like Fig. 9 As shown, it also includes an arc plate 25 and a bubble generator 26. The arc plate 25 is connected to the lower part of the rotating rod 11 and the outer wall of the protective shell 16. The two arc plates 25 are respectively located on both sides of the rotating block 18, and the bubble generator 26 is installed on the two arc plates 25. A gap 27 is left between the ends of the two arc plates 25, and the width of the gap 27 is slightly larger than the diameter of the rotating shaft of the stirring rod 9.

[0036] When the filter medium inside one of the vertical cylinders 5 is being cleaned, the bubble generator 26 can be controlled by the controller 3 to start working. The bubble generator 26 can generate bubbles in the water body. Under the limiting effect of the arc plate 25, the bubbles can be concentrated and enter the vertical cylinder 5 where the filter medium is being cleaned. When the bubbles come into contact with the filter medium in the vertical cylinder 5, the impurities attached to its surface can be driven to flow upward, achieving a flushing effect, thereby improving the cleaning effect of the filter medium inside the vertical cylinder 5; when the rotating rod 11 rotates, the arc plate 25 and the bubble generator 26 will be driven to rotate, so that they can move to the bottom of the vertical cylinder 5 where the filter medium needs to be cleaned. The arc plate 25 and the bubble generator 26 will pass through the rotating shaft of the stirring rod 9 during the rotation process, but since there is a gap 27 between the two arc plates 25, the rotating shaft of the stirring rod 9 will not block their rotation.

[0037] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic cleaning water filter, comprising a mounting base (1), a housing (2) connected to the mounting base (1), a water inlet pipe (201), a water outlet pipe (202) and a sewage pipe (203) connected to the housing (2), characterized in that: The invention also comprises a controller (3) and a mounting plate (4), wherein the controller (3) is mounted on the outer wall of the housing (2), the two mounting plates (4) are symmetrically connected to the inner wall of the housing (2), and a vertical cylinder (5) is connected between the two mounting plates (4) at circumferential intervals, circular holes (501) are provided at circumferential intervals on the vertical cylinder (5), four filter plates (6) are vertically connected inside the vertical cylinder (5), and the four filter plates (6) divide the internal space of the vertical cylinder (5) into three storage spaces for storing filter media, and a hollow frame (7) is provided inside the housing (2), and the hollow frame (7) ) is provided with a connecting pipe at the top, the upper end of the connecting pipe is connected to the water inlet pipe (201), and a notch (701) is provided on the side of the hollow frame (7), the notch (701) is located directly above one of the vertical tubes (5), and four water holes are provided at intervals in the circumferential direction at the bottom of the hollow frame (7), and the four water holes correspond to the other four vertical tubes (5) one by one, so that the other four vertical tubes (5) are connected to the inside of the hollow frame (7), and a sealing strip (8) is connected to the bottom of the hollow frame (7), and the bottom of the sealing strip (8) contacts the top of the upper mounting plate (4), and the inside of the vertical tube (5) is also rotated. The outer shell (2) is connected to a stirring rod (9), and the lower end of the rotating shaft of the stirring rod (9) passes through the bottom of the vertical cylinder (5). The bottom of the outer shell (2) is also connected to a driving motor (10). The output shaft of the driving motor (10) is connected to a rotating rod (11), and the upper end of the rotating rod (11) is connected to the hollow frame (7). The lower end of the stirring rod (9) is connected to a block (12). The rotating rod (11) is connected to a connecting frame (13). The connecting frame (13) is connected to a guide rail (14), and a notch (1401) is provided on the guide rail (14). The block (12) is located at In the guide rail (14), the rotating rod (11) is connected to a connecting rod (15), the connecting rod (15) is connected to a protective shell (16), and the protective shell (16) is located in the notch (1401). A servo motor (17) is also connected to the protective shell (16), and a rotating block (18) is connected to the output shaft of the servo motor (17). The rotating block (18) is provided with a through groove (1801), and both ends of the through groove (1801) in the extending direction are provided with inclined surfaces, so that the block (12) can slide along the guide rail (14) and enter the through groove (1801).

2. The automatic cleaning water filter according to claim 1, characterized in that: It also includes a telescopic rod (19) and a positioning frame (20), wherein the telescopic rod (19) is symmetrically connected to the bottom of the vertical tube (5), the positioning frame (20) is connected to the lower end of the telescopic rod (19), and a limiting groove (2001) is opened at the bottom of the positioning frame (20), and the block (12) is located in the limiting groove (2001).

3. The automatic cleaning water filter according to claim 2, characterized in that: The utility model also comprises a hollow ring (21), a water pump (22), a flow distribution pipe (23) and a water pumping pipe (24); the hollow ring (21) is arranged at intervals outside the vertical cylinder (5); and through holes (2101) are provided at intervals on the inner wall of the hollow ring (21) in the circumferential direction; the interior of the hollow ring (21) can be communicated with the interior of the vertical cylinder (5) through the through hole (2101) and the circular hole (501); the water pump (22) is installed on the top of the lower mounting plate (4); the end of the flow distribution pipe (23) is connected to the water outlet of the water pump (22); and the hollow ring (21) is communicated with the end of the flow distribution pipe (23); the water pumping pipe (24) is connected to the water inlet of the water pump (22); and the lower end of the water pumping pipe (24) passes through the bottom of the lower mounting plate (4).

4. The automatic cleaning water filter according to claim 3, characterized in that: It also includes an arc plate (25) and a bubble generator (26). The two arc plates (25) are respectively connected to the rotating rod (11) and the protective shell (16), and the bubble generator (26) is installed on the arc plate (25).

5. The automatic cleaning water filter according to claim 4, characterized in that: A gap (27) is left between the ends of the two arc-shaped plates (25), and the width of the gap (27) is matched with the diameter of the rotating shaft of the stirring rod (9).

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