A floating pre-filter assembly for an in-water pump

Abstract

The utility model belongs to the field of agricultural irrigation technology, especially relate to a floating water inlet pump front filter assembly, including floating water inlet ware body, the floating water inlet ware body includes the floater and the water pipe, the floater below is equipped with the first -class coarse filter, the inside of first -class coarse filter is equipped with the secondary fine filter screen, the secondary fine filter screen is used for filtering 0.1mm above's impurity, the utility model provides a kind of floating water inlet pump front filter assembly;Increase secondary fine filter screen on the basis of original basic structure, for fine filtration, to meet the cooperation use of sprinkling irrigation, especially drip irrigation, and set up clean brush structure and backwash structure, can smoothly guarantee water taking operation.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural irrigation technology, and specifically relates to a floating inlet pump pre-filter assembly. Background Technology

[0002] A floating water inlet device, also known as a floating water inlet assembly, is a new type of water inlet device that floats in the water and is now widely used. The basic structure of the floating water inlet consists of a floating body 1 and a water inlet pipe 2. A coarse filter is installed below the floating body 1 to prevent larger impurities from entering. However, as the floating water inlet is promoted and used, it will be used in conjunction with sprinkler irrigation and drip irrigation. In particular, drip irrigation has high requirements for water quality, and more impurities can easily clog the drip irrigation tape. Therefore, improvements are needed to the existing floating water inlet structure. Utility Model Content

[0003] This invention provides a floating inlet pump pre-filter assembly that can solve the problems pointed out in the background art.

[0004] A floating water inlet pump pre-filter assembly includes a floating water inlet body, the floating water inlet body includes a float and a water inlet pipe, a primary coarse filter is provided below the float, and a secondary fine filter is provided inside the primary coarse filter, the secondary fine filter is used to filter impurities larger than 0.1mm.

[0005] Preferably, the secondary fine filter screen is 100-150 mesh.

[0006] Preferably, the secondary fine filter screen is driven to rotate by a filter screen driving mechanism. A brush body is provided on the outer side of the secondary fine filter screen. The brush body contacts the outer surface of the secondary fine filter screen. Through the rotation of the secondary fine filter screen, the brush body continuously cleans the attached impurities on the outer surface of the secondary fine filter screen.

[0007] Preferably, the filter drive mechanism includes a drive motor and a drive shaft, wherein the drive motor drives the secondary fine filter to rotate via the drive shaft.

[0008] Preferably, a backwash nozzle assembly is provided on the inner side of the secondary fine filter screen, and the backwash nozzle assembly backwashes the inner surface of the secondary fine filter screen.

[0009] Preferably, the backwash nozzle assembly includes a riser and nozzles arrayed along the height of the riser.

[0010] Beneficial effects: This utility model provides a floating water inlet pump pre-filter assembly; it adds a secondary fine filter screen to the original basic structure for fine filtration, thereby meeting the requirements for use in sprinkler irrigation, especially drip irrigation, and is equipped with a cleaning structure and a backwashing structure to ensure smooth water intake operation. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 2 This is a schematic diagram showing the fit between the brush body rod and the guide rail of this utility model. Explanation of reference numerals in the attached figures: Numbered in the diagram: Floating body 1; Water inlet pipe 2; Primary coarse filter 3; Secondary fine filter screen 4; Brush body 5; Brush rod 51; Brush bristle body 52; First fixing plate 53; Guide rail 54; Drive motor 61; Drive shaft 62; Reinforcing plate 63; Riser 71; Nozzle 72; Second fixing plate 73; Cover plate 8. Detailed Implementation

[0012] The following describes a specific embodiment of the present invention in detail with reference to the accompanying drawings. However, it should be understood that the scope of protection of the present invention is not limited to the specific embodiment.

[0013] Example: Figure 1-2 As shown in the figure, the present invention provides a floating water inlet pump pre-filter assembly, including a floating water inlet body, the floating water inlet body including a float 1 and a water inlet pipe 2, a primary coarse filter 3 is provided below the float 1, and a secondary fine filter 4 is provided inside the primary coarse filter 3. The secondary fine filter 4 is used to filter impurities larger than 0.1mm. Both the primary coarse filter 3 and the secondary fine filter 4 are filter cylinder type filter screens with an upper opening.

[0014] Specifically, the secondary fine filter 4 is 100-150 mesh.

[0015] In some embodiments, the secondary fine filter 4 is driven to rotate by a filter drive mechanism. The outer side of the secondary fine filter 4 is provided with a brush body 5, which includes a brush rod 51 and bristle bodies 52. A first fixing plate 53 may be provided on the brush rod 51. The cover plate 8 is provided with an insertion hole that cooperates with the brush rod 51. The brush rod 51 is inserted through this insertion hole. The first fixing plate 53 and the cover plate 8 may be fixed together with bolts. The brush rod 51 may also cooperate with a guide rail 54. The guide rail 54 is fixed on the inner wall of the float body 1 and the primary coarse filter 3. By setting the guide rail 54, the stability of the position of the brush body 5 can be achieved, and the disassembly and installation of the brush body 5 can be facilitated. The bristle bodies 52 of the brush body 5 are in contact with the outer surface of the secondary fine filter 4. By rotating the secondary fine filter 4, the brush body 5 continuously cleans the attached impurities on the outer surface of the secondary fine filter 4. The brush body 5 can be detachably connected to the inner side of the float body 1 by bolts or other means to facilitate the replacement of the brush body 5.

[0016] Specifically, the filter drive mechanism includes a drive motor 61 and a drive shaft 62. The drive motor 61 drives the secondary fine filter 4 to rotate through the drive shaft 62. The drive motor 61 is a geared motor, which is fixed on the top cover plate 8. Its output end is connected to the drive shaft 62. The lower end of the drive shaft 62 passes through the secondary fine filter 4 and is rotatably connected to the primary coarse filter 3 through a bearing assembly. The drive shaft 62 and the secondary fine filter 4 are fixedly connected and can be reinforced by a reinforcing plate 63. The fixing method can be welding.

[0017] In some embodiments, a backwash nozzle assembly is provided inside the secondary fine filter 4, and the backwash nozzle assembly backwashes the inner surface of the secondary fine filter 4.

[0018] Specifically, the backwash nozzle assembly includes a riser 71 and nozzles 72 arrayed along the height of the riser 71. A second fixing plate 73 may be provided on the riser 71, and an insertion hole that mates with the riser 71 is provided on the cover plate 8. The riser 71 is inserted through this insertion hole. The second fixing plate 73 and the cover plate 8 may be fixed together with bolts. The riser 71 may be connected to a water inlet pipe. The end of the water inlet pipe may be connected to a small water pump. The end of the water inlet pipe may also be connected to the outlet pipe connected to the floating water inlet. A connection end is provided on the outlet pipe. The end of the water inlet pipe may be plugged into or threaded into it.

[0019] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A floating intake water pump pre-filter assembly comprising a floating intake body, said floating intake body comprising a float body (1) and a draft tube (2), characterized in that: The floating body (1) is provided with a primary coarse filter (3) below it, and a secondary fine filter (4) is provided on the inner side of the primary coarse filter (3). The secondary fine filter (4) is used to filter impurities larger than 0.1 mm.

2. A pre-filter assembly for a floating in-line pump according to claim 1, wherein: The secondary fine filter (4) is 100-150 mesh.

3. A pre-filter assembly for a floating in-line pump according to claim 2, wherein: The secondary fine filter (4) is driven to rotate by a filter drive mechanism. A brush body (5) is provided on the outer side of the secondary fine filter (4). The brush body (5) contacts the outer surface of the secondary fine filter (4). Through the rotation of the secondary fine filter (4), the brush body (5) continuously cleans the attached impurities on the outer surface of the secondary fine filter (4).

4. A pre-filter assembly for a floating in-line pump according to claim 3, wherein: The filter drive mechanism includes a drive motor (61) and a drive shaft (62), wherein the drive motor (61) drives the secondary fine filter (4) to rotate via the drive shaft (62).

5. A pre-filter assembly for a floating in-line pump according to any one of claims 1-4, characterized in that: A backwash nozzle assembly is provided inside the secondary fine filter (4), and the backwash nozzle assembly backwashes the inner surface of the secondary fine filter (4).

6. A pre-filter assembly for a floating in-line pump according to claim 5, wherein: The backwash nozzle assembly includes a riser (71) and nozzles (72) arranged in an array along the height of the riser (71).

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