A multi-functional circulating water purification device

Abstract

This invention discloses a multifunctional circulating water purification device, which relates to the field of circulating water purification technology. This multifunctional circulating water purification device, through the cooperation of a support plate and multiple filter cartridges, allows for easy replacement of the filter cotton core inside the filter cartridges. When the filter cotton core needs to be replaced, the upward movement of the connecting pipe cancels the positioning of the filter cartridge. At this time, the rotation of the drive shaft drives the limiting ring and multiple filter cartridges, causing the filter cartridge containing the new filter cotton core to reach above the annular groove, where it is supported by a support plate. Then, the drive cylinder drives the drive ring and connecting pipe downward, allowing the connecting pipe to insert into the connecting sleeve and causing the filter cartridge to insert into the annular groove, completing the sealing operation. This automatically replaces the filter cotton core, further improving the ease of equipment maintenance and ensuring the filtration effect of the circulating water.

Description

Technical Field

[0001] This invention relates to the field of circulating water purification technology, specifically to a multifunctional circulating water purification device. Background Technology

[0002] Circulating water systems are mainly divided into industrial and domestic types, both primarily aimed at water conservation. Industrial water mainly includes boiler water, process water, cleaning water, cooling water, and wastewater. Referring to Chinese patent publication number "CN219730725U" entitled "An Industrial Circulating Water Purification Treatment Device," this patent points out that during the use of industrial circulating water, continuous circulation within pipes inevitably introduces small, insoluble particulate impurities, affecting the quality of the industrial circulating water. Furthermore, the addition of bactericides and algaecides containing calcium and magnesium salts during routine maintenance of industrial circulating water also impacts water quality, causing water hardening and other problems, leading to increasingly lower utilization rates. However, this equipment still suffers from poor maintenance convenience, making filter replacement inconvenient. Therefore, we propose a multi-functional circulating water purification treatment device to address these issues. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a multifunctional circulating water purification device, which solves the problems mentioned in the background section.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: a multi-functional circulating water purification treatment device, including a body, an inlet pipe fixedly installed on the side of the body for conveying circulating water, a primary filter box fixedly installed inside the body, and a storage box connected to each other fixedly installed on the top of the primary filter box.

[0005] The machine body has a bearing plate fixedly installed inside, and a drive shaft is rotatably connected inside the bearing plate. Multiple limiting rings are fixedly installed on the outside of the drive shaft, and filter cylinders are slidably installed inside each limiting ring. Filter cotton cores are installed inside the filter cylinders, and the filter cotton cores are used to filter the circulating water.

[0006] A feed pipe is fixedly installed at the bottom of the primary filter box, and a connecting pipe is slidably sleeved at the end of the feed pipe. A connecting sleeve that matches the connecting pipe is fixedly installed at the top of the filter cylinder. An annular groove is opened inside the bearing plate. The annular groove is coaxial with the connecting pipe, and a drain pipe is connected to the outside of the annular groove. When the filter cotton core inside the filter cylinder is replaced, the filter cylinder can be forced to move down into the annular groove as the connecting pipe moves down and inserts into the connecting sleeve. A connecting hole that matches the drain pipe is opened on the outside of the filter cylinder, so that the circulating water can be discharged through the drain pipe.

[0007] Preferably, a support plate is slidably installed inside the annular groove to support the filter cotton core, and a support spring is fixedly installed between the support plate and the inside of the annular groove.

[0008] Preferably, sealing rings are fixedly installed inside the annular groove and inside the connecting sleeve, respectively, to ensure the sealing between the filter cylinder and the annular groove, and between the connecting pipe and the connecting sleeve.

[0009] Preferably, a drive cylinder is fixedly installed at the bottom of the primary filter box, a drive ring is fixedly installed on the outside of the connecting pipe, and the piston end of the drive cylinder is fixedly connected to the drive ring.

[0010] Preferably, a servo motor is fixedly installed at the bottom of the support plate, and the output end of the servo motor is connected to the end of the drive shaft through a coupling to drive the drive shaft to rotate. A limit slot is opened at the top of the support plate. The limit slot is annular in shape to allow multiple filter cartridges to slide inside the limit slot.

[0011] Preferably, the inner sides of the bearing plate are respectively provided with feeding holes, which are used to output the used filter cotton core and to transport the new filter cotton core into the filter cylinder. The conveying frame and the output frame are respectively fixedly installed inside the machine body.

[0012] Preferably, both the conveyor frame and the output frame are rotatably connected to drive tracks. The output frame is used to output the used filter cotton core, and the conveyor frame is used to transport new filter cotton cores into the filter cylinder.

[0013] Preferably, a lifting cylinder is fixedly installed at the end of the conveyor frame, and a lifting plate is fixedly installed at the end of the lifting cylinder. The lifting plate is slidably installed inside the conveyor frame to lift the filter cotton core upward.

[0014] Preferably, the storage tank and the primary filter tank are interconnected, and a one-way valve is installed between the storage tank and the primary filter tank.

[0015] Preferably, a mixing shaft is rotatably installed inside the primary filter box, and multiple mixing blades are fixedly installed on the outer side of the mixing shaft. A drive motor is fixedly installed on the top of the primary filter box, and the drive motor is used to drive the mixing shaft to run.

[0016] This invention provides a multifunctional purification and treatment device for circulating water. Compared with the prior art, it has the following advantages:

[0017] (1) This multi-functional circulating water purification device, through the cooperation of the bearing plate and multiple filter cylinders, when it is necessary to replace the filter cotton core inside the filter cylinder, the positioning of the filter cylinder can be canceled by moving the connecting pipe upward. At this time, the rotation of the drive shaft can drive the limit ring sleeve and multiple filter cylinders to move, so that the filter cylinder with the new filter cotton core reaches the top of the annular groove and is supported by the support plate. At this time, the drive cylinder drives the drive ring and connecting pipe downward, so that the connecting pipe can be inserted into the connecting sleeve and the filter cylinder can be inserted into the annular groove to complete the sealing operation. The filter cotton core can be automatically replaced, which further improves the convenience of equipment maintenance and ensures the filtration effect of circulating water.

[0018] (2) The multifunctional circulating water purification device, through the cooperation of the mixing shaft and the mixing blades, when the circulating water is introduced into the primary filter box through the liquid inlet pipe, as the chemical reagent is added into the primary filter box, the mixing shaft can drive multiple mixing blades to run, which can improve the mixing degree of the circulating water and the chemical reagent, and further improve the sterilization effect on the circulating water. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the body of the present invention;

[0021] Figure 3 For the present invention Figure 2 Front view of the structural diagram;

[0022] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0023] Figure 5 This is a schematic cross-sectional view of the primary filter box of the present invention;

[0024] Figure 6 This is a schematic cross-sectional view of the bearing disk structure of the present invention;

[0025] Figure 7 For the present invention Figure 6 Front view of the structural diagram;

[0026] Figure 8 For the present invention Figure 7 Enlarged structural diagram at point B.

[0027] In the diagram: 1. Machine body; 2. Inlet pipe; 3. Drain pipe; 4. Conveyor frame; 401. Lifting cylinder; 5. Output frame; 6. Drive track; 7. Primary filter box; 8. Drive motor; 9. Storage box; 10. Mixing shaft; 1001. Mixing blade; 11. Discharge pipe; 1101. Connecting pipe; 1102. Drive ring; 12. Drive cylinder; 13. Bearing plate; 1301. Limiting groove; 14. Drive shaft; 1401. Limiting ring sleeve; 1402. Servo motor; 15. Filter cylinder; 1501. Connecting sleeve; 1502. Filter cotton core; 1503. Connecting hole; 16. Annular groove; 17. Support plate; 1701. Support spring; 18. Sealing ring. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figures 1-8 The present invention provides two technical solutions, specifically including the following embodiments:

[0030] Example 1:

[0031] In this embodiment of the invention, a multifunctional circulating water purification device includes a body 1, an inlet pipe 2 fixedly installed on the side of the body 1 for conveying circulating water, and a primary filter box 7 fixedly installed inside the body 1.

[0032] The machine body 1 has a bearing plate 13 fixedly installed inside, and a drive shaft 14 is rotatably connected inside the bearing plate 13. Multiple limiting rings 1401 are fixedly installed on the outside of the drive shaft 14, and filter cylinders 15 are slidably installed inside each limiting ring 1401. Filter cotton cores 1502 are installed inside the filter cylinders 15, and the filter cotton cores 1502 are used to filter the circulating water.

[0033] A feed pipe 11 is fixedly installed at the bottom of the primary filter box 7, and a connecting pipe 1101 is slidably sleeved at the end of the feed pipe 11. A connecting sleeve 1501 that is compatible with the connecting pipe 1101 is fixedly installed at the top of the filter cylinder 15. An annular groove 16 is opened inside the bearing plate 13. The annular groove 16 is coaxial with the connecting pipe 1101, and a drain pipe 3 is connected to the outside of the annular groove 16. When the filter cotton core 1502 inside the filter cylinder 15 is replaced, the filter cylinder 15 can be forced to move down into the annular groove 16 as the connecting pipe 1101 moves down and inserts into the connecting sleeve 1501. A connecting hole 1503 that is compatible with the drain pipe 3 is opened on the outside of the filter cylinder 15 for the circulating water to be discharged through the drain pipe 3.

[0034] During filtration, the sterilized circulating water can enter the filter cylinder 15 through the feed pipe 11 and the connecting pipe 1101, so that the circulating water can be filtered by the filter cotton core 1502 and then discharged through the drain pipe 3.

[0035] A drive cylinder 12 is fixedly installed at the bottom of the primary filter box 7, and a drive ring 1102 is fixedly installed on the outside of the connecting pipe 1101. The piston end of the drive cylinder 12 is fixedly connected to the drive ring 1102.

[0036] A support plate 17 is slidably installed inside the annular groove 16. The support plate 17 is used to support the filter cotton core 1502. A support spring 1701 is fixedly installed between the support plate 17 and the inside of the annular groove 16.

[0037] When the filter cotton core 1502 inside the filter cartridge 15 needs to be replaced, firstly, the drive cylinder 12 retracts, causing the drive ring 1102 and connecting pipe 1101 to move upward, so that the connecting pipe 1101 separates from the connecting sleeve 1501. At this time, the connecting sleeve 1501, the filter cartridge 15, and the filter cotton core 1502 can move upward through the cooperation of the support plate 17 and the support spring 1701 as the downward pressure disappears. At this time, the drive shaft 14 drives multiple limit rings 1401 and the filter cartridge 15 to rotate 90°, so that the filter cartridge 15 containing the new filter cotton core 1502 reaches above the annular groove 16 and is supported by the support plate 17. At this time, the drive cylinder 12 drives the drive ring 1102 and the connecting pipe 1101 to move downward, so that the connecting pipe 1101 is inserted into the connecting sleeve 1501 and the filter cartridge 15 is inserted into the annular groove 16, completing the sealing operation, and thus the automatic replacement of the filter cotton core 1502 can be completed.

[0038] A sealing ring 18 is fixedly installed inside the annular groove 16 and inside the connecting sleeve 1501, respectively, to ensure the sealing between the filter cartridge 15 and the annular groove 16, and between the connecting pipe 1101 and the connecting sleeve 1501.

[0039] Specifically, by setting the sealing ring 18, when the connecting pipe 1101 is inserted into the connecting sleeve 1501 and drives the filter cylinder 15 to be inserted into the annular groove 16, the sealing effect can be guaranteed by the cooperation of the sealing ring 18.

[0040] A servo motor 1402 is fixedly installed at the bottom of the bearing plate 13. The output end of the servo motor 1402 is connected to the end of the drive shaft 14 through a coupling to drive the drive shaft 14 to rotate. A limit slot 1301 is opened at the top of the bearing plate 13. The limit slot 1301 is annular in shape and is used to allow multiple filter cartridges 15 to slide inside the limit slot 1301.

[0041] The servo motor 1402 is an existing drive device used to drive the drive shaft 14 to rotate, and the limiting slot 1301 is used to complete the limiting operation of multiple filter cartridges 15.

[0042] Feeding holes are provided on both sides of the inside of the bearing plate 13, which are used to output the used filter cotton core 1502 and to transport the new filter cotton core 1502 into the filter cylinder 15, respectively. The conveyor frame 4 and the output frame 5 are fixedly installed inside the machine body 1.

[0043] The two feeding holes are installed at the ends of the conveyor frame 4 and the output frame 5, respectively. When the used filter cotton core 1502 is replaced, as the filter cylinder 15 rotates to the corresponding feeding hole, the filter cotton core 1502 inside can fall into the output frame 5 through the feeding hole, completing the automatic discharge of the filter cotton core 1502; until the empty filter cylinder 15 moves to the feeding hole above the conveyor frame 4, the assembly of the new filter cotton core 1502 is completed.

[0044] Both the conveyor frame 4 and the output frame 5 are rotatably connected to the drive track 6. The output frame 5 is used to output the used filter cotton core 1502, and the conveyor frame 4 is used to transport the new filter cotton core 1502 into the filter cylinder 15.

[0045] Specifically, the drive track 6 is driven by a separate motor to achieve automatic feeding of the filter cotton core 1502.

[0046] A lifting cylinder 401 is fixedly installed at the end of the conveyor frame 4, and a lifting plate is fixedly installed at the end of the lifting cylinder 401. The lifting plate is slidably installed inside the conveyor frame 4 to lift the filter cotton core 1502 upward.

[0047] Specifically, the lifting plate is not shown in the figure. It is mainly used to lift the new filter cotton core 1502 upwards so that it can enter the corresponding filter cylinder 15 and complete the replacement of the filter cotton core 1502.

[0048] Specifically, the bottom of the filter cartridge 15 is open, which facilitates the replacement of the filter cotton core 1502.

[0049] Example 2: Based on Example 1, a multi-functional circulating water purification device includes a body 1, an inlet pipe 2 fixedly installed on the side of the body 1 for conveying circulating water, a primary filter box 7 fixedly installed inside the body 1, and a storage box 9 connected to each other fixedly installed on the top of the primary filter box 7.

[0050] The storage tank 9 is used to store chemical agents. When the circulating water is transported to the primary filter tank 7, the chemical agents can be added to the primary filter tank 7 to achieve sterilization of the circulating water.

[0051] The machine body 1 has a bearing plate 13 fixedly installed inside, and a drive shaft 14 is rotatably connected inside the bearing plate 13. Multiple limiting rings 1401 are fixedly installed on the outside of the drive shaft 14, and filter cylinders 15 are slidably installed inside each limiting ring 1401. Filter cotton cores 1502 are installed inside the filter cylinders 15, and the filter cotton cores 1502 are used to filter the circulating water.

[0052] A feed pipe 11 is fixedly installed at the bottom of the primary filter box 7, and a connecting pipe 1101 is slidably sleeved at the end of the feed pipe 11. A connecting sleeve 1501 that is compatible with the connecting pipe 1101 is fixedly installed at the top of the filter cylinder 15. An annular groove 16 is opened inside the bearing plate 13. The annular groove 16 is coaxial with the connecting pipe 1101, and a drain pipe 3 is connected to the outside of the annular groove 16. When the filter cotton core 1502 inside the filter cylinder 15 is replaced, the filter cylinder 15 can be forced to move down into the annular groove 16 as the connecting pipe 1101 moves down and inserts into the connecting sleeve 1501. A connecting hole 1503 that is compatible with the drain pipe 3 is opened on the outside of the filter cylinder 15 for the circulating water to be discharged through the drain pipe 3.

[0053] During filtration, the sterilized circulating water can enter the filter cylinder 15 through the feed pipe 11 and the connecting pipe 1101, so that the circulating water can be filtered by the filter cotton core 1502 and then discharged through the drain pipe 3.

[0054] A drive cylinder 12 is fixedly installed at the bottom of the primary filter box 7, and a drive ring 1102 is fixedly installed on the outside of the connecting pipe 1101. The piston end of the drive cylinder 12 is fixedly connected to the drive ring 1102.

[0055] A support plate 17 is slidably installed inside the annular groove 16. The support plate 17 is used to support the filter cotton core 1502. A support spring 1701 is fixedly installed between the support plate 17 and the inside of the annular groove 16.

[0056] When the filter cotton core 1502 inside the filter cartridge 15 needs to be replaced, firstly, the drive cylinder 12 retracts, causing the drive ring 1102 and connecting pipe 1101 to move upward, so that the connecting pipe 1101 separates from the connecting sleeve 1501. At this time, the connecting sleeve 1501, the filter cartridge 15, and the filter cotton core 1502 can move upward through the cooperation of the support plate 17 and the support spring 1701 as the downward pressure disappears. At this time, the drive shaft 14 drives multiple limit rings 1401 and the filter cartridge 15 to rotate 90°, so that the filter cartridge 15 containing the new filter cotton core 1502 reaches above the annular groove 16 and is supported by the support plate 17. At this time, the drive cylinder 12 drives the drive ring 1102 and the connecting pipe 1101 to move downward, so that the connecting pipe 1101 is inserted into the connecting sleeve 1501 and the filter cartridge 15 is inserted into the annular groove 16, completing the sealing operation, and thus the automatic replacement of the filter cotton core 1502 can be completed.

[0057] A sealing ring 18 is fixedly installed inside the annular groove 16 and inside the connecting sleeve 1501, respectively, to ensure the sealing between the filter cartridge 15 and the annular groove 16, and between the connecting pipe 1101 and the connecting sleeve 1501.

[0058] Specifically, by setting the sealing ring 18, when the connecting pipe 1101 is inserted into the connecting sleeve 1501 and drives the filter cylinder 15 to be inserted into the annular groove 16, the sealing effect can be guaranteed by the cooperation of the sealing ring 18.

[0059] A servo motor 1402 is fixedly installed at the bottom of the bearing plate 13. The output end of the servo motor 1402 is connected to the end of the drive shaft 14 through a coupling to drive the drive shaft 14 to rotate. A limit slot 1301 is opened at the top of the bearing plate 13. The limit slot 1301 is annular in shape and is used to allow multiple filter cartridges 15 to slide inside the limit slot 1301.

[0060] The servo motor 1402 is an existing drive device used to drive the drive shaft 14 to rotate, and the limiting slot 1301 is used to complete the limiting operation of multiple filter cartridges 15.

[0061] Feeding holes are provided on both sides of the inside of the bearing plate 13, which are used to output the used filter cotton core 1502 and to transport the new filter cotton core 1502 into the filter cylinder 15, respectively. The conveyor frame 4 and the output frame 5 are fixedly installed inside the machine body 1.

[0062] The two feeding holes are installed at the ends of the conveyor frame 4 and the output frame 5, respectively. When the used filter cotton core 1502 is replaced, as the filter cylinder 15 rotates to the corresponding feeding hole, the filter cotton core 1502 inside can fall into the output frame 5 through the feeding hole, completing the automatic discharge of the filter cotton core 1502; until the empty filter cylinder 15 moves to the feeding hole above the conveyor frame 4, the assembly of the new filter cotton core 1502 is completed.

[0063] Both the conveyor frame 4 and the output frame 5 are rotatably connected to the drive track 6. The output frame 5 is used to output the used filter cotton core 1502, and the conveyor frame 4 is used to transport the new filter cotton core 1502 into the filter cylinder 15.

[0064] Specifically, the drive track 6 is driven by a separate motor to achieve automatic feeding of the filter cotton core 1502.

[0065] A lifting cylinder 401 is fixedly installed at the end of the conveyor frame 4, and a lifting plate is fixedly installed at the end of the lifting cylinder 401. The lifting plate is slidably installed inside the conveyor frame 4 to lift the filter cotton core 1502 upward.

[0066] Specifically, the lifting plate is not shown in the figure. It is mainly used to lift the new filter cotton core 1502 upwards so that it can enter the corresponding filter cylinder 15 and complete the replacement of the filter cotton core 1502.

[0067] Specifically, the bottom of the filter cartridge 15 is open, which facilitates the replacement of the filter cotton core 1502;

[0068] The storage tank 9 and the primary filter tank 7 are interconnected, and a one-way valve is installed between the storage tank 9 and the primary filter tank 7. The one-way valve is existing equipment and can effectively prevent circulating water from entering the storage tank 9.

[0069] A mixing shaft 10 is rotatably installed inside the primary filter box 7. Multiple mixing blades 1001 are fixedly installed on the outside of the mixing shaft 10. A drive motor 8 is fixedly installed on the top of the primary filter box 7. The drive motor 8 is used to drive the mixing shaft 10 to run.

[0070] Specifically, through the cooperation of the mixing shaft 10 and the mixing blades 1001, when the chemical reagent is added into the primary filter box 7, the mixing shaft 10 drives multiple mixing blades 1001 to operate, which can improve the mixing degree of circulating water and chemical reagent, and further improve the sterilization effect of circulating water.

[0071] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0072] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A multifunctional circulating water purification device, comprising a body (1), characterized in that: A liquid inlet pipe (2) is fixedly installed on the side of the body (1) for transporting circulating water. A primary filter box (7) is fixedly installed inside the body (1), and a storage box (9) that is connected to each other is fixedly installed on the top of the primary filter box (7). The machine body (1) has a bearing plate (13) fixedly installed inside, and a drive shaft (14) is rotatably connected inside the bearing plate (13). Multiple limiting rings (1401) are fixedly installed on the outside of the drive shaft (14), and filter cylinders (15) are slidably installed inside the limiting rings (1401). Filter cotton cores (1502) are installed inside the filter cylinders (15), and the filter cotton cores (1502) are used to filter the circulating water. The bottom of the primary filter box (7) is fixedly installed with a feed pipe (11), and the end of the feed pipe (11) is slidably sleeved with a connecting pipe (1101). The top of the filter cylinder (15) is fixedly installed with a connecting sleeve (1501) that is compatible with the connecting pipe (1101). The inside of the bearing plate (13) is provided with an annular groove (16). The annular groove (16) and the connecting pipe (1101) are coaxial. The outside of the annular groove (16) is connected with a drain pipe (3). When the filter cotton core (1502) inside the filter cylinder (15) is replaced, as the connecting pipe (1101) moves down and inserts into the connecting sleeve (1501), the filter cylinder (15) can be forced to move down into the annular groove (16). The outside of the filter cylinder (15) is provided with a connecting hole (1503) that is compatible with the drain pipe (3) for discharging the circulating water through the drain pipe (3). A support plate (17) is slidably installed inside the annular groove (16). The support plate (17) is used to support the filter cotton core (1502). A support spring (1701) is fixedly installed between the support plate (17) and the inside of the annular groove (16). Sealing rings (18) are fixedly installed inside the annular groove (16) and inside the connecting sleeve (1501), respectively, to ensure the sealing between the filter cylinder (15) and the annular groove (16) and between the connecting pipe (1101) and the connecting sleeve (1501); Feeding holes are provided on both sides of the inner side of the bearing plate (13), which are used to output the used filter cotton core (1502) and to transport the new filter cotton core (1502) into the filter cylinder (15). The conveying frame (4) and the output frame (5) are fixedly installed inside the machine body (1). Both the conveyor frame (4) and the output frame (5) are rotatably connected to a drive track (6). The output frame (5) is used to output the used filter cotton core (1502), and the conveyor frame (4) is used to convey the new filter cotton core (1502) into the filter cylinder (15). A lifting cylinder (401) is fixedly installed at the end of the conveyor frame (4), and a lifting plate is fixedly installed at the end of the lifting cylinder (401). The lifting plate is slidably installed inside the conveyor frame (4) to lift the filter cotton core (1502) upward.

2. The multifunctional circulating water purification device according to claim 1, characterized in that: The bottom of the primary filter box (7) is fixedly installed with a drive cylinder (12), and the outside of the connecting pipe (1101) is fixedly installed with a drive ring (1102). The piston end of the drive cylinder (12) is fixedly connected to the drive ring (1102).

3. The multifunctional circulating water purification device according to claim 1, characterized in that: A servo motor (1402) is fixedly installed at the bottom of the bearing plate (13). The output end of the servo motor (1402) is connected to the end of the drive shaft (14) through a coupling to drive the drive shaft (14) to rotate. A limiting slot (1301) is opened at the top of the bearing plate (13). The limiting slot (1301) is annular in shape and is used to allow multiple filter cartridges (15) to slide inside the limiting slot (1301).

4. The multifunctional circulating water purification device according to claim 1, characterized in that: The storage tank (9) and the primary filter tank (7) are interconnected, and a one-way valve is installed between the storage tank (9) and the primary filter tank (7).

5. The multifunctional circulating water purification device according to claim 4, characterized in that: The primary filter box (7) is rotatably installed inside a mixing shaft (10), and multiple mixing blades (1001) are fixedly installed on the outside of the mixing shaft (10). A drive motor (8) is fixedly installed on the top of the primary filter box (7), and the drive motor (8) is used to drive the mixing shaft (10) to run.

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