Water filter structure of rotating unit type filter screen

Abstract

The utility model discloses a water filter structure of a rotary unit type filter screen, which belongs to the technical field of water filters and comprises a cylinder, a top cover is fixed on the top of the cylinder through bolts, an upper annular retainer ring and a lower annular retainer ring are fixedly connected to the inner wall of the cylinder, and the upper annular retainer ring and the lower annular retainer ring are fixed on the cylinder. A filtering assembly is arranged between the upper annular check ring and the lower annular check ring and located on the central axis of the barrel, a gear motor is installed at the top of the top cover, an output shaft of the gear motor extends into the barrel and is in transmission connection with a transmission shaft through a coupler, and the bottom end of the transmission shaft is connected with the filtering assembly. By means of the rotary filter assembly, the unit filter screen can be cleaned at a fixed position of the barrel, the environmental pressure is always consistent when the unit filter screen is backwashed, the cleaning pressure is stabilized, the water supply pressure is kept stable, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water filters, and more particularly to a water filter structure with a rotating unit filter screen. Background Art

[0002] A water filter is a device for filtering water. The unit-type automatic cleaning water filter achieves sewage discharge without affecting water supply during actual use. It is widely used in water intake and diversion pumping stations, drainage pumping stations and pumped storage power stations.

[0003] However, the automatic cleaning effect of this type of water filter is poor when discharging sewage, and it is prone to adverse conditions such as water supply pressure drop and large water pressure fluctuations, which in turn affect its normal use. Therefore, in view of this, research and improvement are conducted on the existing structure, and a water filter structure with a rotating unit filter is provided, in order to achieve a purpose with greater practical value. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In response to the problems existing in the prior art, the purpose of the present utility model is to provide a water filter structure with a rotating unit filter screen, which can utilize a rotating filter assembly to enable the cleaning of the unit filter screen to be carried out at a fixed position on the cylinder. The ambient pressure is always consistent when the unit filter screen is backwashed, which stabilizes the cleaning pressure, keeps the water supply pressure stable, and improves its working efficiency.

[0006] 2. Technical solution

[0007] In order to solve the above problems, the present invention adopts the following technical solutions.

[0008] A water filter structure with a rotating unit filter screen comprises a cylinder, a top cover is fixed with bolts on the top of the cylinder, an upper annular retaining ring and a lower annular retaining ring are fixedly connected to the inner wall of the cylinder, a filter assembly is arranged between the upper annular retaining ring and the lower annular retaining ring, and the filter assembly is located on the central axis of the cylinder, a reduction motor is installed on the top of the top cover, the output shaft of the reduction motor extends into the cylinder and is connected to a transmission shaft through a coupling, the bottom end of the transmission shaft is connected to the filter assembly, and a sewage pipe is arranged at the lower position inside the cylinder;

[0009] The filter assembly includes an upper base plate and a lower base plate, which are respectively located at the top of the upper annular retaining ring and the bottom of the lower annular retaining ring. Several unit filter screens are clamped between the upper base plate and the lower base plate, and the several unit filter screens are distributed in an annular shape with equal distances.

[0010] Furthermore, a water inlet is provided at a lower position on one side of the outer periphery of the cylinder, and a water outlet is provided at an upper position on the other side of the outer periphery of the cylinder.

[0011] Furthermore, openings are provided on the upper base plate and the lower base plate at the end positions corresponding to the unit filters, and the openings are communicated with the interior of the corresponding unit filters.

[0012] Furthermore, a clamping hole is provided at the center of the top of the upper base plate, and the clamping hole is clamped and fixed to the bottom end of the transmission shaft.

[0013] Furthermore, the inlet end of the sewage pipe is in contact with and connected to the bottom of the lower base plate and corresponds to the position of the opening. The outlet of the sewage pipe extends to the outside of the cylinder and is fixedly installed with a sewage valve.

[0014] Furthermore, a plurality of evenly distributed supporting legs are fixedly connected to the bottom of the cylinder, and two symmetrically arranged lifting ears are fixedly connected to the top of the top cover.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] In this solution, the reduction motor cooperates with the transmission shaft to rotate the filter assembly consisting of the upper and lower base plates and several unit filters, so that the cleaning of the unit filter is carried out at a fixed position on the cylinder. The ambient pressure is always consistent when the unit filter is backwashed, which stabilizes the cleaning pressure, keeps the water supply pressure stable, and improves its working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the filter assembly structure of the present utility model;

[0020] Figure 3 For the utility model Figure 2 Schematic diagram of the top view structure;

[0021] Figure 4 This is a schematic diagram of the filtering working condition of the utility model;

[0022] Figure 5 This is a schematic diagram of the sewage discharge working condition of the present utility model.

[0023] Description of the numbers in the figure:

[0024] 1. Cylinder;

[0025] 2. Top cover;

[0026] 3. Upper annular retaining ring;

[0027] 4. Lower annular retaining ring;

[0028] 5. Filter assembly; 501. Upper base plate; 502. Lower base plate; 503. Unit filter;

[0029] 6. Gear motor;

[0030] 7. Drive shaft;

[0031] 8. Sewage pipe;

[0032] 9. Water inlet;

[0033] 10. Water outlet;

[0034] 11. Drain valve;

[0035] 12. Support leg;

[0036] 13. Hanging ears. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] Example:

[0039] See also Figure 1-5 , a water filter structure with a rotating unit filter screen, including a cylinder 1, a top cover 2 is fixed with bolts on the top of the cylinder 1, an upper annular retaining ring 3 and a lower annular retaining ring 4 are fixedly connected to the inner wall of the cylinder 1, a filter assembly 5 is arranged between the upper annular retaining ring 3 and the lower annular retaining ring 4, and the filter assembly 5 is located on the central axis of the cylinder 1, a reduction motor 6 is installed on the top of the top cover 2, the output shaft of the reduction motor 6 extends into the cylinder 1, and is connected to a transmission shaft 7 through a coupling, the bottom end of the transmission shaft 7 is connected to the filter assembly 5, and a sewage pipe 8 is arranged at the lower position inside the cylinder 1;

[0040] The filter assembly 5 includes an upper base plate 501 and a lower base plate 502, which are respectively located at the top of the upper annular retaining ring 3 and the bottom of the lower annular retaining ring 4. Several unit filter screens 503 are clamped between the upper base plate 501 and the lower base plate 502, and the several unit filter screens 503 are distributed equidistantly in a ring shape.

[0041] See Figure 1 A water inlet 9 is provided at a lower position on one side of the outer periphery of the cylinder 1, and a water outlet 10 is provided at an upper position on the other side of the outer periphery of the cylinder 1.

[0042] See Figure 2Openings are provided at the end positions of the corresponding unit filters 503 on the upper base plate 501 and the lower base plate 502, and the openings are connected to the interior of the corresponding unit filters 503, thereby connecting the interiors of all unit filters 503 through the external space.

[0043] See Figure 3 A card hole is opened at the center position of the top of the upper base plate 501, and the card hole is fixed with the bottom end of the transmission shaft 7. The transmission shaft 7 is connected to the upper base plate 501 through the card hole. Under the action of the reduction motor 6, the filter component 5 can be rotated in the cylinder 1.

[0044] See Figure 1 and Figure 2 The inlet end of the sewage pipe 8 is in contact with and connected to the bottom of the lower base plate 502, and corresponds to the position of the opening. The outlet of the sewage pipe 8 extends to the outside of the cylinder 1 and is fixedly installed with a sewage valve 11. When in use, the sewage pipe 8 is fixed. The filter assembly 5 rotates one circle, and several unit filters 503 pass through the inlet of the sewage pipe 8 in turn. The position of each unit filter 503 remains unchanged during sewage discharge, thereby keeping the water pressure fixed. In addition, the filter assembly 5 rotates one circle to complete a sewage discharge cycle. It can be rotated continuously and flushed multiple times to improve its cleaning effect.

[0045] See Figure 1 The bottom of the cylinder 1 is fixedly connected with a plurality of evenly distributed supporting legs 12, and the top of the top cover 2 is fixedly connected with two symmetrically arranged lifting ears 13.

[0046] Working principle:

[0047] During filtering operation: raw water containing impurities flows into the cylinder 1 from the water inlet 9 of the water filter, flows into the unit filter 503 through the opening on the lower bottom plate 502, and then enters the top of the cylinder 1 through the opening on the upper bottom plate 501; the opening on the lower bottom plate 502 of the unit filter 503 at the sewage outlet is blocked, and the raw water enters the interior of the unit filter 503 through the opening on the upper bottom plate 501. At this time, all the unit filters 503 are in a filtering state. The raw water is filtered through the unit filter 503, and impurities larger than the gaps in the unit filter 503 are isolated inside the unit filter 503. Clean water enters the outside of the unit filter 503 and flows out of the cylinder 1 through the water outlet 10 to meet the use requirements of the water-using equipment at the rear.

[0048] During sewage discharge operation: as the debris accumulates, the pressure difference between the water inlet 9 and the water outlet 10 of the water filter increases. When the pressure difference reaches the set value, the unit filter 503 needs to be backwashed and cleaned. During backwash operation, the sewage valve 11 is opened, and the sewage inside the unit filter 503 connected to the sewage pipe 8 is discharged from the corresponding unit filter 503 along with the water flow. At the same time, the reduction motor 6 runs, driving the filter assembly 5 to rotate. The cleaned unit filter 503 passes the entrance of the sewage pipe 8 and immediately enters the filtration operation. When the next unit filter 503 passes the entrance of the sewage pipe 8, it enters the backwash operation. As the filter assembly 5 rotates, each unit filter 503 completes a backwash cleaning in turn. After one rotation, a cleaning cycle is completed. The continuous rotation of the filter assembly 5 can be repeatedly cleaned, greatly improving its cleaning effect.

[0049] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0050] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0051] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A water filter structure with a rotating unit filter screen, comprising a cylinder (1), a top cover (2) being fixed to the top of the cylinder (1) by bolts, characterized in that: An upper annular retaining ring (3) and a lower annular retaining ring (4) are fixedly connected to the inner wall of the cylinder (1); a filter assembly (5) is provided between the upper annular retaining ring (3) and the lower annular retaining ring (4); and the filter assembly (5) is located on the central axis of the cylinder (1); a reduction motor (6) is installed on the top of the top cover (2); the output shaft of the reduction motor (6) extends into the cylinder (1) and is connected to a transmission shaft (7) through a coupling; the bottom end of the transmission shaft (7) is connected to the filter assembly (5); and a sewage pipe (8) is provided at a lower position inside the cylinder (1); The filter assembly (5) comprises an upper base plate (501) and a lower base plate (502), wherein the upper base plate (501) and the lower base plate (502) are respectively located at the top of the upper annular retaining ring (3) and the bottom of the lower annular retaining ring (4), and a plurality of unit filter screens (503) are clamped between the upper base plate (501) and the lower base plate (502), and the plurality of unit filter screens (503) are distributed in an annular shape at equal intervals.

2. The water filter structure of the rotating unit filter according to claim 1, characterized in that: A water inlet (9) is provided at a lower position on one side of the outer periphery of the cylinder (1), and a water outlet (10) is provided at an upper position on the other side of the outer periphery of the cylinder (1).

3. The water filter structure of the rotating unit filter according to claim 1, characterized in that: Openings are provided at the end positions of the upper base plate (501) and the lower base plate (502) corresponding to the unit filter screens (503), and the openings are communicated with the interior of the corresponding unit filter screens (503).

4. The water filter structure of the rotating unit filter according to claim 1, characterized in that: A clamping hole is provided at the center of the top of the upper base plate (501), and the clamping hole is clamped and fixed to the bottom end of the transmission shaft (7).

5. The water filter structure of the rotating unit filter according to claim 1, characterized in that: The inlet end of the sewage pipe (8) is in contact with and connected to the bottom of the lower base plate (502) and corresponds to the position of the opening. The outlet of the sewage pipe (8) extends to the outside of the cylinder (1) and is fixedly installed with a sewage valve (11).

6. The water filter structure of the rotating unit filter according to claim 1, characterized in that: The bottom of the cylinder (1) is fixedly connected to a plurality of evenly distributed support legs (12), and the top of the top cover (2) is fixedly connected to two symmetrically arranged lifting ears (13).

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