Self-priming full-automatic filter

Abstract

This utility model belongs to the field of filters and discloses a self-priming fully automatic filter, including a filter body. An inlet and an outlet are respectively provided at the bottom and one side near the bottom of the filter body. A fine filter cylinder is vertically arranged in the center of the filter body, communicating with the inlet. A coarse filter assembly is horizontally arranged at the connection between the inlet and the fine filter cylinder. This self-priming fully automatic filter features a high degree of automation, can self-clean and discharge wastewater, and provides uninterrupted water supply. It has a wide range of applications, short cleaning time, and low wastewater consumption. A lead screw is used to achieve the up-and-down movement of the suction scanner, and water pressure is used to drive the automatic rotation of the rotating suction structure through a water-driven rotator. The suction device simultaneously performs up-and-down and rotational movements, covering the entire inner wall of the fine filter and scraping away and cleaning the impurities on the inner wall of the fine filter.

Description

Technical Field

[0001] This utility model belongs to the field of filters, specifically relating to a self-priming fully automatic filter. Background Technology

[0002] Self-cleaning filters are precision devices that use filter screens to intercept impurities in water and purify it. They can reduce system dirt, bacteria, and algae, ensuring the normal operation of the equipment. In existing technologies, some filters require disassembly for cleaning or replacement of the filter screen, which is cumbersome. For example, the suction-type self-cleaning filter with publication number CN 209188256 U only cleans by rotating the nozzle of its cleaning mechanism, without vertical movement, and cannot cover the entire inner wall of the filter screen. This makes it easy for impurities to remain, affecting the filtration effect, and urgently needs improvement. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a self-priming fully automatic filter to solve the problems existing in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A self-priming fully automatic filter includes a filter body. An inlet and an outlet are respectively located at the bottom and one side near the bottom of the filter body. A fine filter cylinder is vertically arranged in the center of the filter body and communicates with the inlet. A coarse filter assembly is horizontally arranged at the connection between the inlet and the fine filter cylinder. A rotating suction structure is provided inside the fine filter cylinder. The rotating suction structure includes a suction nozzle main shaft tube, and multiple suction nozzles are equidistantly arranged along its length on the surface of the suction nozzle main shaft tube. The suction device has its suction end pressed tightly against the inner wall of the fine filter screen cylinder. A water-driven rotator and a lower guide shaft are fixedly installed at the top and bottom of the suction nozzle main shaft tube, respectively. The lower guide shaft is movably connected to the center of the coarse filter screen assembly. The water-driven rotator is located inside the drain cylinder, which is fixedly installed vertically on the top of the filter body. A drain valve is provided on one side of the drain cylinder, and a lifting drive device is fixedly installed on the top of the drain cylinder. The bottom of the lifting end of the lifting drive device is rotatably connected to the top of the water-driven rotator.

[0006] In a preferred embodiment of the present invention, the water-driven rotary device includes a main tube, which is vertically connected to the top of the suction nozzle spindle tube. Wing tubes are arranged on both the left and right sides of the main tube in a horizontal direction. Thrust holes are opened at the ends of the two wing tubes that are away from the central axis of the main tube in a horizontal and opposite direction.

[0007] In a preferred embodiment of this utility model, an upper guide sleeve is fixedly installed at the center of the bottom of the sewage discharge cylinder, and the upper guide sleeve is sleeved on the outside of the suction nozzle main shaft tube.

[0008] In a preferred embodiment of the present invention, a lower guide sleeve is fixedly installed in the center of the coarse filter assembly, and the lower guide sleeve is sleeved outside the lower guide shaft.

[0009] In a preferred embodiment of this utility model, the lifting drive device includes a drive motor, which is fixedly installed on the top of the upper bracket. The bottom of the upper bracket is fixedly installed on the top of the sewage discharge cylinder. The bottom end of the drive motor shaft is fixedly installed on the top end of the lead screw via a coupling. A connecting pipe is sleeved on the outside of the lead screw. A nut is fixedly installed on the top of the connecting pipe. The nut is threadedly connected to the lead screw. The bottom of the connecting pipe is movably connected to a connecting piece. The connecting piece is fixedly installed on the top of the main pipe. A guide groove plate is fixedly installed inside the upper bracket parallel to the lead screw. One side of the nut is slidably connected to the guide groove plate.

[0010] In a preferred embodiment of this utility model, two sets of limit switches are arranged at intervals along the vertical direction on the outer surface of the upper bracket, and the distance between the two sets of limit switches is equal to the lifting stroke of the nut.

[0011] In a preferred embodiment of this utility model, a differential pressure switch is provided between the filter body and the water inlet to detect the water pressure difference between the filter body and the water inlet.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This self-priming fully automatic filter features a high degree of automation, self-cleaning and wastewater discharge, uninterrupted water supply, wide application range, short cleaning time, and low water consumption for wastewater discharge. It uses a lead screw to move the suction scanner up and down, and utilizes water pressure to drive a water-driven rotary mechanism to automatically rotate the suction structure. The suction device simultaneously moves up and down and rotates, covering the entire inner wall of the fine filter screen, scraping away impurities and cleaning the filter thoroughly. This completes the overall cleaning of the filter. The transmission system is simple, the cost is low, the energy consumption is low, and it offers excellent practicality and economy. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the planar cross-sectional structure of this utility model;

[0015] Figure 2 This is a three-dimensional sectional view of the present invention.

[0016] Figure 3 This is a schematic diagram of the structure of a water-driven rotary engine.

[0017] In the diagram: 1. Lifting drive device; 11. Drive motor; 12. Limit switch; 13. Lead screw; 14. Lead nut; 15. Connecting pipe; 16. Guide groove plate; 17. Upper bracket; 2. Rotary suction structure; 21. Sewage valve; 22. Sewage cylinder; 23. Water-driven rotator; 231. Main pipe; 232. Wing pipe; 233. Thrust hole; 234. Connecting piece; 24. Upper guide sleeve; 25. Suction nozzle main shaft tube; 26. Suction device; 27. Lower guide sleeve; 28. Lower guide shaft; 3. Filter body; 31. Water outlet; 32. Fine filter screen cylinder; 33. Coarse filter screen assembly; 34. Water inlet; 4. Differential pressure switch. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] Please refer to Figure 1-3 As shown, an embodiment of this application provides a self-priming fully automatic filter, including a filter body 3. An inlet 34 and an outlet 31 are respectively provided at the bottom and one side near the bottom of the filter body 3. A fine filter cylinder 32 is vertically arranged in the center of the filter body 3, communicating with the inlet 34. A coarse filter assembly 33 is horizontally arranged at the connection between the inlet 34 and the fine filter cylinder 32. A rotary suction structure 2 is provided inside the fine filter cylinder 32, including a suction nozzle main shaft tube 25. The surface of the suction nozzle main shaft tube 25 is evenly distributed along its length. Multiple suction nozzles 26 are provided, with the suction end of each suction nozzle 26 closely attached to the inner wall of the fine filter screen cylinder 32. A water-driven rotary device 23 and a lower guide shaft 28 are fixedly installed at the top and bottom of the suction nozzle main shaft tube 25, respectively. The lower guide shaft 28 is movably connected to the center of the coarse filter screen assembly 33. The water-driven rotary device 23 is located inside the drain cylinder 22, which is fixedly installed vertically on the top of the filter body 3. A drain valve 21 is provided on one side of the drain cylinder 22, and a lifting drive device 1 is fixedly installed on the top of the drain cylinder 22. The bottom of the lifting end of the lifting drive device 1 is rotatably connected to the top of the water-driven rotary device 23.

[0021] In a preferred embodiment of the present invention, the water-driven rotary device 23 further includes a main pipe 231, which is vertically connected to the top of the suction nozzle spindle tube 25. Both sides of the main pipe 231 are provided with wing tubes 232 in the horizontal direction. The surfaces of the two wing tubes 232 are provided with thrust holes 233 in the horizontal and opposite directions at the ends away from the central axis of the main pipe 231.

[0022] Specifically, such as Figure 1 As shown, this self-priming fully automatic filter consists of three main parts, from bottom to top: a coarse filtration zone, a fine filtration zone, and a sewage discharge zone. A coarse filter assembly 33 is provided between the coarse filtration zone and the fine filtration zone. Sewage can only flow through the inlet 34 and the coarse filter assembly 33 into the fine filter cylinder 32 set in the middle of the filter body 3 for fine filtration, and then flow out through the outlet 31.

[0023] When the fine filter cylinder 32 becomes clogged, the water pressure difference between the coarse filtration zone and the fine filtration zone may change significantly. When it reaches a predetermined value, the differential pressure switch 4 will be triggered, thereby controlling the drain valve 21 to open through the controller, and the sewage will be discharged from the drain area where the drain cylinder 22 is located. Due to the water pressure, the water in the filter body 3 will flow into each suction device 26, thereby forming a negative pressure at the suction device 26 and converging in the suction nozzle main shaft tube 25. It will then be sprayed out from the water-driven rotary device 23 and enter the drain cylinder 22, thereby sucking up the dirt that has caused the blockage at the mesh of the fine filter cylinder 32.

[0024] Since the main pipe 231 of the water-driven rotary device 23 has horizontally arranged wing pipes 232 on both sides, and the ends of the two wing pipes 232 away from the main pipe 231 are opened with thrust holes 233 in opposite directions, when the sewage is sprayed out of the two thrust holes 233, the two thrusts in completely opposite directions drive the water-driven rotary device 23 to rotate, thereby driving the suction nozzle main shaft pipe 25 and each suction device 26 to rotate, thereby cleaning along the inner circumference of the fine filter screen cylinder 32. At the same time, by controlling the lifting drive device 1 to drive the rotating sewage suction structure 2 to move up and down and reciprocate, the purpose of cleaning the entire inner surface of the fine filter screen cylinder 32 is achieved.

[0025] This self-priming fully automatic filter features a high degree of automation, self-cleaning and wastewater discharge, uninterrupted water supply, wide application range, short cleaning time, and low wastewater consumption. A lead screw 13 drives the suction scanner up and down, while water pressure drives the rotating suction structure 2 through a water-driven rotary unit 23. The suction unit 26 simultaneously moves up and down and rotates, covering the entire inner wall of the fine filter screen, scraping away impurities and cleaning the filter thoroughly. This completes the overall cleaning of the filter. The transmission system is simple, the cost is low, energy consumption is low, and it offers excellent practicality and economy.

[0026] In a preferred embodiment of the present invention, a guide sleeve 24 is further fixedly installed at the bottom center of the drain cylinder 22, and the guide sleeve 24 is sleeved on the outside of the suction nozzle main shaft tube 25.

[0027] In a preferred embodiment of the present invention, a lower guide sleeve 27 is fixedly installed in the center of the coarse filter assembly 33, and the lower guide sleeve 27 is sleeved on the outside of the lower guide shaft 28.

[0028] The upper guide sleeve 24 and the lower guide sleeve 27 are added to regulate the lifting path of the suction nozzle spindle tube 25, reduce the amount of shaking of the two parts during the lifting movement, and prevent excessive friction between the suction device 26 and the fine filter cylinder 32, which would reduce the service life of the parts.

[0029] In a preferred embodiment of this utility model, the lifting drive device 1 further includes a drive motor 11, which is fixedly installed on the top of the upper bracket 17. The bottom of the upper bracket 17 is fixedly installed on the top of the sewage discharge cylinder 22. The bottom end of the shaft of the drive motor 11 is fixedly installed on the top end of the lead screw 13 through a coupling. A connecting pipe 15 is sleeved on the outside of the lead screw 13. A nut 14 is fixedly installed on the top of the connecting pipe 15. The nut 14 is threadedly connected to the lead screw 13. The bottom of the connecting pipe 15 is movably connected to the connecting piece 234. The connecting piece 234 is fixedly installed on the top of the main pipe 231. A guide groove plate 16 is fixedly installed inside the upper bracket 17 parallel to the lead screw 13. One side of the nut 14 is slidably connected to the guide groove plate 16.

[0030] Specifically, such as Figure 1-2 As shown, the screw 13 is driven to rotate by the drive motor 11, thereby driving the screw nut 14 to move vertically under the guidance of the guide groove plate 16. By rotating the drive motor 11 in both directions, the screw nut 14 moves up and down along the screw 13, thereby realizing the lifting action of the rotating suction structure 2.

[0031] In a preferred embodiment of this utility model, two sets of limit switches 12 are further arranged at intervals along the vertical direction on the outer surface of the upper support 17. The distance between the two sets of limit switches 12 is equal to the lifting stroke of the nut 14. By automatically controlling the rising and falling displacement distance of the rotating suction structure 2, the structure is prevented from overtravel, ensuring normal operation of the equipment and ensuring high efficiency during operation.

[0032] In a preferred embodiment of this utility model, a differential pressure switch 4 is further provided between the filter body 3 and the water inlet 34 to detect the water pressure difference between the filter body 3 and the water inlet 34. The blockage of the fine filter screen cylinder 32 is determined by the water pressure difference, thereby realizing the automatic cleaning function through the controller.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A self-priming fully automatic filter, comprising a filter body (3), wherein an inlet (34) and an outlet (31) are respectively provided at the bottom and one side near the bottom of the filter body (3), characterized in that: A fine filter cylinder (32) is vertically arranged in the center of the filter body (3). The fine filter cylinder (32) is connected to the water inlet (34). A coarse filter assembly (33) is horizontally arranged at the connection between the water inlet (34) and the fine filter cylinder (32). A rotating suction structure (2) is arranged inside the fine filter cylinder (32). The rotating suction structure (2) includes a suction nozzle spindle tube (25). Multiple suction devices (26) are equidistantly arranged on the surface of the suction nozzle spindle tube (25) along its length. The suction end of the suction device (26) is in close contact with the inner wall of the fine filter cylinder (32). A water-driven rotary device (23) and a lower guide shaft (28) are fixedly installed at the top and bottom of the suction nozzle main shaft tube (25), respectively. The lower guide shaft (28) is movably connected to the center of the coarse filter assembly (33). The water-driven rotary device (23) is located inside the drain cylinder (22). The drain cylinder (22) is fixedly installed on the top of the filter body (3) in the vertical direction. A drain valve (21) is provided on one side of the drain cylinder (22). A lifting drive device (1) is fixedly installed on the top of the drain cylinder (22). The bottom of the lifting end of the lifting drive device (1) is rotatably connected to the top of the water-driven rotary device (23).

2. The self-priming fully automatic filter according to claim 1, characterized in that: The water-driven rotary device (23) includes a main tube (231), which is vertically connected to the top of the suction nozzle spindle tube (25). Both sides of the main tube (231) are provided with wing tubes (232) in the horizontal direction. The surfaces of the two wing tubes (232) are provided with thrust holes (233) in the horizontal and opposite directions at the ends away from the central axis of the main tube (231).

3. The self-priming fully automatic filter according to claim 2, characterized in that: The bottom center of the drain cylinder (22) is fixedly installed with an upper guide sleeve (24), which is sleeved on the outside of the suction nozzle main shaft tube (25).

4. A self-priming fully automatic filter according to claim 3, characterized in that: The coarse filter assembly (33) has a lower guide sleeve (27) fixedly installed in the center, and the lower guide sleeve (27) is sleeved on the outside of the lower guide shaft (28).

5. A self-priming fully automatic filter according to claim 2, characterized in that: The lifting drive device (1) includes a drive motor (11), which is fixedly installed on the top of the upper bracket (17). The bottom of the upper bracket (17) is fixedly installed on the top of the sewage cylinder (22). The bottom end of the shaft of the drive motor (11) is fixedly installed on the top end of the lead screw (13) through a coupling. A connecting pipe (15) is sleeved on the outside of the lead screw (13). A nut (14) is fixedly installed on the top of the connecting pipe (15). The nut (14) is threadedly connected to the lead screw (13). The bottom of the connecting pipe (15) is movably connected to the connector (234). The connector (234) is fixedly installed on the top of the main pipe (231). A guide groove plate (16) is fixedly installed inside the upper bracket (17) parallel to the lead screw (13). One side of the nut (14) is slidably connected to the guide groove plate (16).

6. A self-priming fully automatic filter according to claim 5, characterized in that: The outer surface of the upper bracket (17) is provided with two sets of limit switches (12) spaced apart in the vertical direction, and the distance between the two sets of limit switches (12) is equal to the lifting stroke of the nut (14).

7. A self-priming fully automatic filter according to claim 1, characterized in that: A differential pressure switch (4) is provided between the filter body (3) and the water inlet (34) to detect the water pressure difference between the filter body (3) and the water inlet (34).

Images