Anti-blocking backwashing type filter

Abstract

The utility model discloses an anti-clogging backwash type filter relates to filter technical field, including receiving cylinder, filter cartridge no. 1, filter cartridge no. 2 and cartridge cover, the bottom end of filter cartridge no. 1 is fixedly connected with locating ring no. 2, the bottom end of filter cartridge no. 2 is fixedly connected with locating ring no. A second annular groove is formed in the bottom end of the inner side of the containing cylinder. The front end of a second insertion rod is pushed into a second insertion hole through an arranged limiting mechanism under the action of a second spring, so that a second filter cylinder is fixedly connected to the interior of a containing cylinder, an electromagnet is started, a connecting block can be made to be in magnetic connection with the electromagnet, the connecting block moves downwards, a first traction rope and a second traction rope are driven to move synchronously, and therefore the filtering effect is achieved. The first insertion rod is far away from the first insertion hole, and the second insertion rod is far away from the second insertion hole, so that the first filter cartridge and the second filter cartridge can be quickly taken down, the replacement speed of the first filter cartridge and the second filter cartridge is increased, and the stability during filtering work is favorably kept.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to an anti-clogging backwashing filter. Background Art

[0002] Existing filtration equipment usually uses fixed filter cartridges when performing filtration work. Such filter cartridges are prone to clogging during the filtration process and need to be shut down for cleaning regularly, resulting in low equipment operating efficiency. At the same time, when cleaning, the filter cartridge needs to be removed from the equipment. The cleaning process is cumbersome and can easily damage the filter cartridge, affecting the filtration effect. In addition, when backwashing, existing filtration equipment usually uses fixed nozzles, which has an unsatisfactory backwashing effect and incomplete cleaning, which can easily cause scale accumulation inside the equipment, further affecting the filtration effect.

[0003] In view of the above problems, the utility model provides an anti-clogging backwashing filter, which adopts a movably connected filter cartridge, which can be quickly replaced and cleaned, thereby improving the operating efficiency of the equipment. At the same time, the filter adopts a rotary cleaning mechanism, which can clean the filter cartridge in all directions and use high-pressure water for backwashing, thereby improving the cleaning efficiency and ensuring the filtering effect. In addition, the filter has a simple structure, is easy to operate, and is suitable for various filtering occasions. Utility Model Content

[0004] The purpose of the utility model is to solve the problems of troublesome replacement of filter cartridges and easy dirtiness of filter cartridges in the prior art. By setting a limiting mechanism, the replacement speed of filter cartridge one and filter cartridge two is improved, and it is beneficial to maintain the stability during filtering work; by setting a cleaning mechanism, impurities adhered to filter cartridge one and filter cartridge two are conveniently cleaned, thereby improving the durability of filter cartridge one and filter cartridge two.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] 14. The filter cartridge of claim 13, wherein the filter cartridge has an inner surface that is adapted to engage with the filter element and the filter element is adapted to engage with the filter element.

[0007] As a preferred technical solution of the present application, the limiting mechanism includes an insertion rod, a spring and a traction rope, and the insertion rod, spring and traction rope are all distributed in a circular array, one end of the traction rope is respectively fixedly connected to the rear end of the insertion rod, and the front end of the insertion rod is constructed with a beveled surface, the insertion rod is movably connected to the bottom end of the accommodating tube, the spring is respectively sleeved on the outside of the traction rope, one end of the spring is fixedly connected to the rear end of the insertion rod, and the other end of the spring is fixedly connected to the bottom end of the accommodating tube, and a plurality of sockets are opened on the surface of the positioning ring, and the insertion rod is respectively adapted to the sockets.

[0008] As a preferred technical solution of the present application, the limiting mechanism also includes two insertion rods, two springs and two traction ropes. The two insertion rods, two springs and two traction ropes are distributed in a circular array, one end of the two traction ropes is respectively fixedly connected to the rear end of the two insertion rods, and the front end of the two insertion rods is constructed with a beveled surface, the two insertion rods are movably connected to the bottom end of the accommodating tube, the two springs are respectively sleeved on the outside of the two traction ropes, one end of the two springs is fixedly connected to the rear end of the two insertion rods, and the other end of the two springs is fixedly connected to the bottom end of the accommodating tube, and the surface of the two positioning rings is provided with several two insertion holes, and the two insertion rods are respectively adapted to the two insertion holes.

[0009] As a preferred technical solution of the present application, the limiting mechanism also includes a connecting block, a return spring and an electromagnet, the connecting block is movably connected to the bottom end of the accommodating tube, the bottom end of the return spring is fixedly connected to the top of the connecting block, and the top end of the return spring is fixedly connected to the bottom end of the accommodating tube, the electromagnet is fixedly connected to the bottom end of the accommodating tube, and the top end of the electromagnet is magnetically connected to the bottom end of the connecting block, the end of the traction rope 1 away from the insertion rod 1 is fixedly connected to the outside of the connecting block, and the end of the traction rope 2 away from the insertion rod 2 is fixedly connected to the outside of the connecting block.

[0010] As a preferred technical solution of the present application, the cleaning mechanism includes a support frame, a rotating rod, cleaning strip 1, cleaning strip 2 and a support rod, the support frame is movably connected to the inner wall of the accommodating cylinder, the bottom end of the rotating rod is fixedly connected to the top center of the support frame, the rotating rod passes through the cylinder cover, and the rotating rod is movably connected to the cylinder cover through a bearing, the cleaning strip 1, cleaning strip 2 and the support rod are symmetrically arranged, the top end of the cleaning strip 1 and the top end of the cleaning strip 2 are both T-shaped, the cleaning strip 1 passes through the support frame, and cleaning strip 1 is movably connected to the support frame, the cleaning strip 2 passes through the support frame, and cleaning strip 2 is movably connected to the support frame, and the top ends of the support rods are fixedly connected to the bottom end of the support frame.

[0011] As a preferred technical solution of the present application, the inner wall and outer wall of the filter cartridge one are movably connected to the inner side of the cleaning strip one, and the inner wall and outer wall of the filter cartridge two are movably connected to the inner side of the cleaning strip two, and a plurality of nozzles are fixedly connected to the opposite sides of the support rod, and the nozzles are distributed in a linear array, and the nozzles are located on the outer side of the filter cartridge two.

[0012] As a preferred technical solution of the present application, the cleaning mechanism also includes a worm wheel, a worm and a servo motor, the rotary rod passes through the worm wheel, and the rotary rod is fixedly connected to the worm wheel, the servo motor is fixedly connected to the top of the barrel cover, and the output end of the servo motor is fixedly connected to one end of the worm, and the other end of the worm is movably connected to the top of the barrel cover, and the worm wheel is meshed with the worm.

[0013] Compared with the prior art, the utility model provides an anti-clogging backwash filter, which has the following beneficial effects:

[0014] 1. The utility model provides a limiting mechanism, under the action of the second spring, to push the front end of the second plug rod into the second plug hole, so that the second filter cartridge is fixedly connected to the inside of the accommodating cylinder, and the electromagnet is started, so that the connecting block is magnetically connected to the electromagnet, and the connecting block moves downward, driving the traction rope 1 and the traction rope 2 to move synchronously, so that the first plug rod is away from the first plug hole, and the second plug rod is away from the second plug hole, so that the first filter cartridge and the second filter cartridge can be quickly removed, thereby improving the replacement speed of the first filter cartridge and the second filter cartridge, and facilitating the stability of the filtering work;

[0015] 2. The utility model starts the servo motor through the cleaning mechanism provided, drives the worm to rotate, thereby drives the worm wheel and the rotating rod to rotate synchronously, drives the supporting frame to rotate synchronously, and makes the cleaning strips 1 and 2 rotate around the rotating rod, thereby effectively cleaning the inner wall of the filter cartridge 1 and the inner wall and the outer side of the filter cartridge 2, and sprays high-pressure water through the nozzle to backwash the outer wall of the filter cartridge 2, thereby improving the cleaning efficiency of the cleaning strip 2. Since the cleaning strips 1 and 2 are movably connected to the supporting frame, it is convenient to remove and replace the cleaning strips 1 and 2, and it is convenient to clean the impurities adhered to the filter cartridges 1 and 2, thereby improving the durability of the filter cartridges 1 and 2. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the accommodating cylinder of the utility model;

[0018] Figure 3 For this utility model Figure 2 Schematic diagram of some structures;

[0019] Figure 4 This is a schematic diagram of the structure of the accommodating tube of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the limiting mechanism of the utility model;

[0021] Figure 6 This is a schematic diagram of the cleaning mechanism structure of the utility model;

[0022] Figure 7 For this utility model Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0023] In the figure: 1. accommodating cylinder; 2. filter cylinder 1; 3. filter cylinder 2; 4. cylinder cover; 5. positioning ring 1; 6. positioning ring 2; 7. ring groove 1; 8. ring groove 2; 9. limiting mechanism; 901. plug rod 1; 902. spring 1; 903. traction rope 1; 904. plug rod 2; 905. spring 2; 906. traction rope 2; 907. connecting block; 908. reset spring; 909. electromagnet; 10. cleaning mechanism; 1001. support frame; 1002. rotating rod; 1003. cleaning strip 1; 1004. cleaning strip 2; 1005. support rod; 1006. worm gear; 1007. worm; 1008. servo motor; 11. drain pipe; 12. water inlet pipe; 13. socket 1; 14. socket 2; 15. nozzle. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0025] like Figure 1-7 As shown, the utility model provides a technical solution: an anti-clogging backwash filter, comprising a receiving tube 1, a filter tube 2, a filter tube 3 and a tube cover 4, the bottom end of the filter tube 2 is fixedly connected with a positioning ring 5, and the bottom end of the filter tube 3 is fixedly connected with a positioning ring 6, the inner bottom end of the receiving tube 1 is provided with a ring groove 7, and the inner bottom end of the receiving tube 1 is provided with a ring groove 8, the diameter of the filter tube 23 is larger than the diameter of the filter tube 2, and the diameter of the ring groove 28 is larger than the diameter of the ring groove 28, and the positioning ring 5 is connected to the ring groove 7. The bottom end of the accommodating cylinder 1 is movably connected to a limiting mechanism 9, and the limiting mechanism 9 is movably connected to the positioning ring 1 5 and the positioning ring 2 6 respectively, the cylinder cover 4 is movably connected to the top of the accommodating cylinder 1, the bottom end of the cylinder cover 4 is movably connected to a cleaning mechanism 10, and the cleaning mechanism 10 is movably connected to the inner wall and outer wall of the filter cylinder 1 2 and the inner wall and outer wall of the filter cylinder 2 3, the bottom end of the accommodating cylinder 1 is fixedly connected to several drain pipes 11, and the top end of the cylinder cover 4 is fixedly connected to a group of symmetrical water inlet pipes 12.

[0026] First, insert the positioning ring 15 into the ring groove 17, and then rotate the filter cartridge 12 until the socket 13 is aligned with the plug rod 1901. Under the action of the spring 1902, push the front end of the plug rod 1901 into the socket 13 to fix the filter cartridge 2 to the inside of the accommodating cylinder 1. Similarly, insert the positioning ring 26 into the ring groove 28, and then rotate the filter cartridge 23 until the socket 14 is aligned with the plug rod 2904. Under the action of the spring 2905, push the front end of the plug rod 2904 into the socket. The filter cartridge 23 is fixedly connected to the interior of the receiving cylinder 1 by the inside of the second plug hole 14, and the electromagnet 909 is started to make the connection block 907 magnetically connected to the electromagnet 909, and the connection block 907 moves downward, driving the traction rope 1 903 and the traction rope 2 906 to move synchronously, so that the insertion rod 1 901 is away from the insertion hole 13, and the insertion rod 2 904 is away from the insertion hole 2 14, so that the filter cartridge 1 2 and the filter cartridge 23 can be quickly removed, and then other components are installed; waste water is introduced into the interior of the receiving cylinder 1 through the water inlet pipe 12, and after filtering The water is filtered by the filter cartridge 1 2 and the filter cartridge 2 3, and then flows to the gap between the filter cartridge 2 3 and the accommodating cartridge 1, and is discharged from the drain pipe 11; when the filter cartridge 1 2 and the filter cartridge 2 3 need to be cleaned, first, a pipe is fixedly connected to the inside of the support frame 1001 and the support rod 1005 for connecting to the nozzle 15, and the inlet end of the pipe is rotatably connected to the outlet end of the water inlet pipe 12, and the servo motor 1008 is started to drive the worm 1007 to rotate, thereby driving the worm wheel 1006 and the rotating rod 1002 to rotate synchronously, driving the support frame 1001 to rotate synchronously, and driving the support frame 1001 to rotate synchronously. The frame 1001 rotates synchronously, so that the cleaning strip 1003 and the cleaning strip 2 1004 rotate around the rotating rod 1002, thereby effectively cleaning the inner wall of the filter cartridge 1 2 and the inner wall and the outer side of the filter cartridge 2 3, and spraying high-pressure water through the nozzle 15 to backwash the outer wall of the filter cartridge 2 3, thereby improving the cleaning efficiency of the cleaning strip 2 1004. Since the cleaning strip 1003 and the cleaning strip 2 1004 are movably connected to the support frame 1001, it is convenient to remove and replace the cleaning strip 1003 and the cleaning strip 2 1004.

[0027] like Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, the limiting mechanism 9 includes an insertion rod 901, a spring 902 and a traction rope 903, and the insertion rod 901, the spring 902 and the traction rope 903 are all distributed in a circular array, one end of the traction rope 903 is respectively fixedly connected to the rear end of the insertion rod 901, and the front end of the insertion rod 901 is constructed with a beveled surface, the insertion rod 901 is movably connected to the bottom end of the accommodating tube 1, the spring 902 is respectively sleeved on the outside of the traction rope 903, and one end of the spring 902 is fixedly connected to the rear end of the insertion rod 901 , and the other end of the spring 1 902 is fixedly connected to the bottom end of the accommodating tube 1, a plurality of plug holes 13 are provided on the surface of the positioning ring 5, and the plug rod 1 901 is respectively adapted to the plug hole 13, the limiting mechanism 9 also includes a plug rod 2 904, a spring 2 905 and a traction rope 2 906, the plug rod 2 904, the spring 2 905 and the traction rope 2 906 are all distributed in a circular array, one end of the traction rope 2 906 is respectively fixedly connected to the rear end of the plug rod 2 904, and the front end of the plug rod 2 904 is constructed with a beveled surface, the plug rod The second spring 904 is movably connected to the bottom end of the accommodating tube 1, and the second spring 905 is respectively sleeved on the outside of the traction rope 906. One end of the second spring 905 is fixedly connected to the rear end of the plug rod 904, and the other end of the second spring 905 is fixedly connected to the bottom end of the accommodating tube 1. The surface of the positioning ring 6 is provided with a plurality of plug holes 14, and the plug rod 904 is respectively adapted to the plug holes 14. The limiting mechanism 9 also includes a connecting block 907, a reset spring 908 and an electromagnet 909. The connecting block 907 is movably connected to the accommodating tube 1. Inside the bottom end of the cylinder 1, the bottom end of the reset spring 908 is fixedly connected to the top end of the connecting block 907, and the top end of the reset spring 908 is fixedly connected to the bottom end of the accommodating cylinder 1, the electromagnet 909 is fixedly connected to the bottom end of the accommodating cylinder 1, and the top end of the electromagnet 909 is magnetically connected to the bottom end of the connecting block 907, the end of the traction rope 903 away from the insertion rod 901 is fixedly connected to the outside of the connecting block 907, and the end of the traction rope 2 906 away from the insertion rod 2 904 is fixedly connected to the outside of the connecting block 907.

[0028] Insert the positioning ring 15 into the ring groove 17, and then rotate the filter cartridge 12 until the insertion hole 13 is aligned with the insertion rod 1901. Under the action of the spring 1902, push the front end of the insertion rod 1901 into the inside of the insertion hole 13, so as to fix the filter cartridge 2 to the inside of the accommodating cylinder 1. Similarly, insert the positioning ring 26 into the inside of the ring groove 28, and then rotate the filter cartridge 23 until the insertion hole 214 is aligned with the insertion rod 2904. Under the action of the spring 2905, push the front end of the insertion rod 2904 into the insertion hole 214. The inside of the filter cartridge 2 3 is fixedly connected to the inside of the accommodating cartridge 1, and the electromagnet 909 is started, so that the connecting block 907 is magnetically connected to the electromagnet 909, and the connecting block 907 moves downward, driving the traction rope 1 903 and the traction rope 2 906 to move synchronously, so that the insertion rod 1 901 is away from the socket 1 13, and the insertion rod 2 904 is away from the socket 2 14, so that the filter cartridge 1 2 and the filter cartridge 2 3 can be quickly removed, thereby improving the replacement speed of the filter cartridge 1 2 and the filter cartridge 2 3, and it is beneficial to maintain the stability during the filtering operation.

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7As shown, the cleaning mechanism 10 includes a support frame 1001, a rotating rod 1002, a cleaning strip 1003, a cleaning strip 2 1004 and a support rod 1005. The support frame 1001 is movably connected to the inner wall of the accommodating tube 1, and the bottom end of the rotating rod 1002 is fixedly connected to the top center of the support frame 1001. The rotating rod 1002 passes through the tube cover 4, and the rotating rod 1002 is movably connected to the tube cover 4 through a bearing. The cleaning strip 1003, the cleaning strip 2 1004 and the support rod 1005 are all symmetrically arranged, and the top of the cleaning strip 1003 and the top of the cleaning strip 2 1004 are both T-shaped. The cleaning strip 1003 passes through the support frame 1001, and the cleaning strip 1003 is movably connected to the support frame 1001. The cleaning strip 2 1004 passes through the support frame 1001, and the cleaning strip 2 1004 is movably connected to the support frame 1001. The top of the support rod 1005 The ends are fixedly connected to the bottom end of the support frame 1001, the inner wall and outer wall of the filter cartridge 2 are movably connected to the inner side of the cleaning strip 1003, and the inner wall and outer wall of the filter cartridge 23 are movably connected to the inner side of the cleaning strip 2 1004, the opposite sides of the support rod 1005 are fixedly connected with a plurality of nozzles 15, and the nozzles 15 are distributed in a linear array, and the nozzles 15 are located on the outer side of the filter cartridge 23, the cleaning mechanism 10 also includes a worm gear 1006, a worm 1007 and a servo motor 1008, the rotary rod 1002 passes through the worm gear 1006, and the rotary rod 1002 is fixedly connected to the worm gear 1006, the servo motor 1008 is fixedly connected to the top of the cartridge cover 4, and the output end of the servo motor 1008 is fixedly connected to one end of the worm 1007, and the other end of the worm 1007 is movably connected to the top of the cartridge cover 4, and the worm gear 1006 is meshed with the worm 1007.

[0030] When it is necessary to clean the filter cartridge 1 2 and the filter cartridge 2 3, first, a pipe is fixedly connected inside the support frame 1001 and the support rod 1005 to connect the nozzle 15, and the inlet end of the pipe is rotatably connected to the outlet end of the water inlet pipe 12, and the servo motor 1008 is started to drive the worm 1007 to rotate, thereby driving the worm wheel 1006 and the rotating rod 1002 to rotate synchronously, and driving the support frame 1001 to rotate synchronously, so that the cleaning strip 1003 and the cleaning strip 2 1004 rotate around the rotating rod 1002, thereby cleaning the filter cartridge 1 The inner wall of filter cartridge 1 2 and the inner wall and outer side of filter cartridge 2 3 are effectively cleaned, and high-pressure water is sprayed through nozzle 15 to backwash the outer wall of filter cartridge 2 3, thereby improving the cleaning efficiency of cleaning strip 2 1004. Since cleaning strip 1 1003, cleaning strip 2 1004 and support frame 1001 are movably connected, it is convenient to replace cleaning strip 1 1003 and cleaning strip 2 1004, and it is convenient to clean impurities adhered to filter cartridge 1 2 and filter cartridge 2 3, thereby improving the durability of filter cartridge 1 2 and filter cartridge 2 3.

[0031] Working principle: When in use, first, insert the positioning ring 15 into the inside of the ring groove 17, then rotate the filter cartridge 12 until the socket 13 is aligned with the plug rod 1901, and under the action of the spring 1902, push the front end of the plug rod 1901 into the inside of the socket 13 to fix the filter cartridge 2 to the inside of the accommodating cylinder 1. Similarly, insert the positioning ring 26 into the inside of the ring groove 28, and then rotate the filter cartridge 23 until the socket 214 is aligned with the plug rod 2904, and under the action of the spring 2905, push the plug rod 2904 into the inside of the accommodating cylinder 1. The front end of the filter cartridge 1 is pushed into the interior of the second socket 14, thereby fixing the filter cartridge 2 3 to the interior of the accommodating cylinder 1, and starting the electromagnet 909, which can make the connecting block 907 magnetically connected to the electromagnet 909, and the connecting block 907 moves downward, driving the traction rope 1 903 and the traction rope 2 906 to move synchronously, so that the insertion rod 1 901 is away from the socket 13, and the insertion rod 2 904 is away from the socket 2 14, so that the filter cartridge 1 2 and the filter cartridge 2 3 can be quickly removed, and then other components are installed; waste water is introduced into the interior of the accommodating cylinder 1 through the water inlet pipe 12 , filtered by filter cartridge 1 2 and filter cartridge 2 3, then flows to the gap between filter cartridge 2 3 and accommodating cartridge 1, and is discharged from drain pipe 11; when filter cartridge 1 2 and filter cartridge 2 3 need to be cleaned, first, a pipe is fixedly connected inside support frame 1001 and support rod 1005 to connect with nozzle 15, the inlet end of the pipe is rotatably connected with the outlet end of water inlet pipe 12, servo motor 1008 is started, worm 1007 is driven to rotate, thereby driving worm wheel 1006 and rotary rod 1002 to rotate synchronously, driving The support frame 1001 rotates synchronously, causing the cleaning strip 1003 and the cleaning strip 2 1004 to rotate around the rotating rod 1002, thereby effectively cleaning the inner wall of the filter cartridge 1 2 and the inner wall and the outer side of the filter cartridge 2 3, and spraying high-pressure water through the nozzle 15 to backwash the outer wall of the filter cartridge 2 3, thereby improving the cleaning efficiency of the cleaning strip 2 1004. Since the cleaning strips 1003 and the cleaning strips 1004 are movably connected to the support frame 1001, it is convenient to remove and replace the cleaning strips 1003 and the cleaning strips 2 1004.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A backwash filter with an anti-clogging function, comprising a receiving cylinder (1), a first filter cylinder (2), a second filter cylinder (3) and a cylinder cover (4), characterized in that: The bottom end of the filter cartridge 1 (2) is fixedly connected to a positioning ring 1 (5), and the bottom end of the filter cartridge 2 (3) is fixedly connected to a positioning ring 2 (6). The inner bottom end of the accommodating cartridge (1) is provided with an annular groove 1 (7), and the inner bottom end of the accommodating cartridge (1) is provided with an annular groove 2 (8). The diameter of the filter cartridge 2 (3) is larger than the diameter of the filter cartridge 1 (2), and the diameter of the annular groove 2 (8) is larger than the diameter of the annular groove 2 (8). The positioning ring 1 (5) is matched with the annular groove 1 (7), and the positioning ring 2 (6) is matched with the annular groove 2 (8). The accommodating cartridge (1) is provided with an annular groove 1 (7). The bottom end is movably connected to a limiting mechanism (9), and the limiting mechanism (9) is movably connected to the first positioning ring (5) and the second positioning ring (6) respectively; the cylinder cover (4) is movably connected to the top of the accommodating cylinder (1); the bottom end of the cylinder cover (4) is movably connected to a cleaning mechanism (10), and the cleaning mechanism (10) is movably connected to the inner wall and outer wall of the first filter cylinder (2) and the inner wall and outer wall of the second filter cylinder (3); the bottom end of the accommodating cylinder (1) is fixedly connected to a plurality of drainage pipes (11), and the top end of the cylinder cover (4) is fixedly connected to a group of symmetrical water inlet pipes (12).

2. The anti-clogging backwash filter according to claim 1, characterized in that: The limiting mechanism (9) comprises an insert rod (901), a spring (902) and a traction rope (903), wherein the insert rod (901), the spring (902) and the traction rope (903) are all arranged in a circular array, one end of the traction rope (903) is respectively fixedly connected to the rear end of the insert rod (901), and the front end of the insert rod (901) is constructed with an inclined surface, the insert rod (901) is movably connected to the bottom end of the accommodating tube (1), the spring (902) is respectively sleeved on the outside of the traction rope (903), one end of the spring (902) is fixedly connected to the rear end of the insert rod (901), and the other end of the spring (902) is fixedly connected to the bottom end of the accommodating tube (1), and the surface of the positioning ring (5) is provided with a plurality of insertion holes (13), and the insert rod (901) is respectively adapted to the insertion holes (13).

3. The anti-clogging backwash filter according to claim 2, characterized in that: The limiting mechanism (9) further comprises an insert rod (904), a spring (905) and a traction rope (906), wherein the insert rod (904), the spring (905) and the traction rope (906) are all arranged in a circular array, one end of the traction rope (906) is respectively fixedly connected to the rear end of the insert rod (904), and the front end of the insert rod (904) is constructed with an oblique cut surface, the insert rod (904) is movably connected to the bottom end of the accommodating tube (1), the spring (905) is respectively sleeved on the outside of the traction rope (906), one end of the spring (905) is fixedly connected to the rear end of the insert rod (904), and the other end of the spring (905) is fixedly connected to the bottom end of the accommodating tube (1), and a plurality of second insertion holes (14) are provided on the surface of the positioning ring (6), and the insert rod (904) is respectively adapted to the second insertion holes (14).

4. The anti-clogging backwash filter according to claim 3, characterized in that: The limiting mechanism (9) also includes a connecting block (907), a return spring (908) and an electromagnet (909), wherein the connecting block (907) is movably connected to the bottom end of the accommodating tube (1), the bottom end of the return spring (908) is fixedly connected to the top end of the connecting block (907), and the top end of the return spring (908) is fixedly connected to the bottom end of the accommodating tube (1), the electromagnet (909) is fixedly connected to the bottom end of the accommodating tube (1), and the top end of the electromagnet (909) is magnetically connected to the bottom end of the connecting block (907), the end of the traction rope 1 (903) away from the insertion rod 1 (901) is fixedly connected to the outside of the connecting block (907), and the end of the traction rope 2 (906) away from the insertion rod 2 (904) is fixedly connected to the outside of the connecting block (907).

5. The anti-clogging backwash filter according to claim 1, characterized in that: The cleaning mechanism (10) comprises a support frame (1001), a rotating rod (1002), a first cleaning strip (1003), a second cleaning strip (1004) and a support rod (1005); the support frame (1001) is movably connected to the inner wall of the accommodating cylinder (1); the bottom end of the rotating rod (1002) is fixedly connected to the top center of the support frame (1001); the rotating rod (1002) passes through the cylinder cover (4); the rotating rod (1002) is movably connected to the cylinder cover (4) via a bearing; the first cleaning strip (1003), the second cleaning strip (1004) and the support rod (1005) are movably connected to the cylinder cover (4); 4) and the support rod (1005) are symmetrically arranged, the top of the cleaning strip one (1003) and the top of the cleaning strip two (1004) are both T-shaped, the cleaning strip one (1003) passes through the support frame (1001), and the cleaning strip one (1003) is movably connected to the support frame (1001), the cleaning strip two (1004) passes through the support frame (1001), and the cleaning strip two (1004) is movably connected to the support frame (1001), and the top of the support rod (1005) is fixedly connected to the bottom of the support frame (1001).

6. The anti-clogging backwash filter according to claim 5, characterized in that: The inner wall and the outer wall of the filter cartridge one (2) are both movably connected to the inner side of the cleaning strip one (1003), and the inner wall and the outer wall of the filter cartridge two (3) are both movably connected to the inner side of the cleaning strip two (1004). The opposite sides of the support rod (1005) are fixedly connected with a plurality of nozzles (15), and the nozzles (15) are distributed in a linear array. The nozzles (15) are located on the outer side of the filter cartridge two (3).

7. The anti-clogging backwash filter according to claim 6, characterized in that: The cleaning mechanism (10) further comprises a worm wheel (1006), a worm (1007) and a servo motor (1008); the rotating rod (1002) penetrates the worm wheel (1006), and the rotating rod (1002) is fixedly connected to the worm wheel (1006); the servo motor (1008) is fixedly connected to the top of the barrel cover (4); the output end of the servo motor (1008) is fixedly connected to one end of the worm (1007), and the other end of the worm (1007) is movably connected to the top of the barrel cover (4); and the worm wheel (1006) and the worm (1007) are meshed.

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