A drainage filter device

Abstract

The present invention belongs to the technical field of water engineering, and specifically relates to a drainage filtering device, including a vertical pipe, the upper end of the vertical pipe is used to connect to a water pump, the lower end of the vertical pipe is closed, and the lower part of the side surface of the vertical pipe is provided with a plurality of filtering holes distributed circumferentially around the axis of the vertical pipe. The outer side of the vertical pipe is sleeved with a horizontal plate that can slide up and down, and the horizontal plate is fixedly connected to the upper part of the side surface of the vertical pipe through an elastic element. The present invention provides a drainage filtering device. After impurities are attached to the drainage filtering device, the staff can easily clean them off. Compared with traditional cleaning methods, the cleaning operation of the drainage filtering device is simple and convenient, which can greatly reduce the work intensity of the staff and also improve work efficiency to a certain extent.

Description

Technical Field

[0001] The invention belongs to the technical field of water engineering, and in particular relates to a drainage filtering device. Background Art

[0002] Drainage operations are required in some water projects. The operation process is to insert one end of the pumping pipe into the water body that needs to be drained, connect the other end of the pumping pipe to the pumping end of the pump, connect the discharge end of the pump to the drain pipe, place the other end of the drain pipe in the drainage area, and then start the pump to drain the water.

[0003] During the above-mentioned drainage operation, in order to prevent impurities in the water body from entering the pipeline and affecting the drainage operation, a filter screen will be wrapped at the water inlet end of the pumping pipe to intercept impurities. After a long period of drainage operation, a large amount of impurities will adhere to the outside of the filter screen, affecting the drainage efficiency. Therefore, after drainage for a period of time, the impurities on the outside of the filter screen need to be cleaned. The common cleaning method is to pull the drain pipe out of the water body, and then the staff will use their hands or tools to peel off the impurities and the filter screen. After the cleaning is completed, the drain pipe will be put back into the water body. In view of the fact that this cleaning method is too cumbersome, this application proposes a drainage filter device to solve the above problem. Summary of the Invention

[0004] The purpose of the present invention is to provide a drainage filtering device to solve the problems existing in the background technology.

[0005] In order to achieve the above technical objectives, the technical solutions adopted by the present invention are as follows:

[0006] A drainage filtering device includes a vertical pipe, the upper end of the vertical pipe is used to connect to a water pump, the lower end of the vertical pipe is closed, a plurality of filtering holes distributed circumferentially around the axis of the vertical pipe are opened on the lower side of the vertical pipe, a horizontal plate that can slide up and down is sleeved on the outer side of the vertical pipe, and the horizontal plate is fixed to the upper part of the side of the vertical pipe through an elastic element.

[0007] The shape of the horizontal plate is circular, and the inner diameter of the horizontal plate matches the outer diameter of the vertical pipe.

[0008] The elastic element is an elastic telescopic tube, and in a natural state, the elastic telescopic tube is in a contracted state.

[0009] The lower end of the vertical pipe is provided with a locking bolt assembly, and the horizontal plate is provided with a locking buckle assembly that matches the locking bolt assembly. The locking bolt assembly cooperates with the locking buckle assembly to fix the horizontal plate on the lower side of the filter hole.

[0010] The locking bolt assembly includes a box body located at the lower end of the vertical pipe, one side of the box body is open, and an elastic membrane is fixed to the opening of the box body;

[0011] A horizontal cylinder connected to the box body is fixedly connected to the side of the box body, a first cylinder is sealed and slidably connected to the inside of the horizontal cylinder, a second cylinder is fixedly connected to one end of the first cylinder away from the box body, and the diameter of the second cylinder is larger than the diameter of the first cylinder;

[0012] The locking assembly includes a locking plate fixed to the lower end of the horizontal plate, the position of the locking plate matches the position of the horizontal cylinder, the locking plate is provided with a locking groove matching the diameter of the second column, and the bottom wall of the locking groove is provided with a vertical through groove matching the diameter of the first column.

[0013] One end of the first column away from the second column is fixedly connected to a limiting member located in the box body, and the limiting member can limit the first column from completely separating from the transverse cylinder.

[0014] The opening of the box body is fixedly connected with a water-permeable plate located outside the elastic membrane.

[0015] The opening of the box body is located at the lower end of the box body.

[0016] The present invention provides a drainage filter device, which can be easily cleaned by workers after impurities are attached to it. Compared with traditional cleaning methods, the cleaning operation of the drainage filter device is simple and convenient, which can greatly reduce the work intensity of workers and improve work efficiency to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further illustrated by means of the following non-limiting examples.

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 for Figure 1 A schematic diagram of the structure at point A in the middle;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention;

[0021] Figure 4 for Figure 3 A magnified schematic diagram of the structure at point B.

[0022] The main component symbols are described as follows:

[0023] Vertical pipe 1, water pumping pipe 11, filter hole 12, horizontal plate 2, elastic telescopic tube 3, box body 4, elastic membrane 401, horizontal cylinder 41, first column 42, second column 43, locking piece 5, locking groove 51, vertical through groove 52, limiter 53, water permeable plate 54. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0025] Example 1

[0026] like Figure 1-4 As shown, a drainage filtering device of the present invention includes a vertical pipe 1, the upper end of the vertical pipe 1 is used to connect to the water pumping pipe 11, the lower end of the vertical pipe 1 is closed, and a plurality of filtering holes 12 distributed circumferentially around the axis of the vertical pipe 1 are opened on the lower side of the vertical pipe 1. A horizontal plate 2 that can slide up and down is sleeved on the outside of the vertical pipe 1. The horizontal plate 2 is in the shape of a circular ring, and the inner diameter of the horizontal plate 2 matches the outer diameter of the vertical pipe 1. The horizontal plate 2 is fixed to the upper side of the vertical pipe 1 through an elastic element.

[0027] The elastic element is an elastic telescopic tube 3 . In a natural state, the elastic telescopic tube 3 is in a contracted state. In this state, the transverse plate 2 is located above the filter hole 12 .

[0028] Before drainage, the upper end of the vertical pipe 1 of the drainage filter device is connected to the pumping pipe 11. When drainage is performed, the drainage filter device is placed in the water body to be pumped, and then the pumping pump at the other end of the pumping pipe 11 is started. In this way, the water in the water body will enter the vertical pipe 1 through each filter hole 12, and then pass through the pumping pipe 11 and the pumping pump and finally be discharged from the end of the drainage pipe.

[0029] When impurities attached to the outside of the vertical pipe 1 affect the water inlet efficiency of the filter hole 12, the user can quickly pull the water pump 11 upward to make the drainage filter device move upward rapidly in the water body. Since the horizontal plate 2 is elastically connected to the vertical pipe 1 through the elastic telescopic tube 3, when the vertical pipe 1 moves upward, the horizontal plate 2 will overcome the elastic force of the elastic telescopic tube 3 under the dual effects of inertia and water resistance and move downward relative to the vertical pipe 1. When the horizontal plate 2 slides downward, it will scrape from the sides of each filter hole 12, that is, it will scrape off the impurities on the outside of the vertical pipe 1, so that it can be directly To clean impurities, after the vertical pipe 1 stops moving upward, the elastic telescopic tube 3 will gradually shrink and drive the horizontal plate 2 to reset upward relative to the vertical pipe 1. In addition, the user can quickly lower the water pump pipe 11 to lower the height of the vertical pipe 1, thereby using the resistance of water to prompt the horizontal plate 2 to quickly reset upward. Therefore, after the user quickly lifts and lowers the water pump pipe 11 several times, the impurities attached to the outside of the vertical pipe 1 can be cleaned. Compared with traditional cleaning methods, this cleaning operation is simple and convenient, which can greatly reduce the workload of the staff and improve work efficiency to a certain extent.

[0030] Example 2

[0031] This embodiment is a further improvement on the previous embodiment. As shown in the figure, a locking bolt assembly is provided at the lower end of the vertical pipe 1, and a locking buckle assembly matching the locking bolt assembly is provided at the horizontal plate 2. The locking bolt assembly cooperates with the locking buckle assembly to fix the horizontal plate 2 on the lower side of the filter hole 12.

[0032] The locking bolt assembly includes a box body 4 located at the lower end of the vertical tube 1, with an opening on one side of the box body 4, and an elastic membrane 401 fixed to the opening of the box body 4, and a horizontal cylinder 41 connected to the box body 4 is fixed to the side of the box body 4, and a first column 42 is sealed and slidably connected in the horizontal cylinder 41, and a second column 43 is fixed to the end of the first column 42 away from the box body 4, and the diameter of the second column 43 is larger than the diameter of the first column 42, and the lock assembly includes a locking plate 5 fixed to the lower end of the horizontal plate 2, and the position of the locking plate 5 matches the position of the horizontal cylinder 41, and the locking plate 5 is provided with a locking groove 51 matching the diameter of the second column 43, and the bottom wall of the lock groove 51 is provided with a vertical through groove 52 matching the diameter of the first column 42.

[0033] One end of the first column 42 away from the second column 43 is fixedly connected to a limiting member 53 located in the box body 4 . The limiting member 53 can prevent the first column 42 from completely separating from the horizontal cylinder 41 .

[0034] A water-permeable plate 54 located outside the elastic membrane 401 is fixed to the opening of the box body 4 . The opening of the box body 4 is located at the lower end of the box body 4 . The water-permeable plate 54 can protect the elastic membrane 401 .

[0035] When the drainage filter device is stored and not in use, the horizontal plate 2 can be pulled downward relative to the vertical pipe 1, and then the horizontal plate 2 can be fixed to the lower side of the filter holes 12 using the locking bolt assembly and the lock buckle assembly. In this way, the elastic telescopic tube 3 can cover all the filter holes 12 to protect the filter holes 12.

[0036] The box body 4 cooperates with the elastic membrane 401, the transverse cylinder 41 and the first column 42 to enclose a closed space, which is referred to as the working space. Under normal atmospheric pressure, the first column 42 will shrink into the working space until the second column 43 abuts against the outer end of the transverse cylinder 41.

[0037] When fixing the cross plate 2 to the lower side of the filter hole 12, first pull the second column 43 outward to overcome the elastic force of the elastic membrane 401 until the locking piece 5 is inserted. This process will form a negative pressure in the confined space, so the elastic membrane 401 will be recessed and stretched into the box body 4. Then, the cross plate 2 is pulled downward relative to the vertical tube 1 to overcome the elastic force of the elastic telescopic tube 3, so that the vertical through groove 52 passes through the first column 42 until the locking groove 51 is aligned with the second column 43. Finally, the second column 43 is released, and the elastic membrane 401 will rebound. Under the action of negative pressure, the first column 42 will drive the second column 43 to reset, so that the second column 43 is inserted into the locking groove 51, which limits the upward movement of the locking piece 5 relative to the second column 43, that is, the cross plate 2 is fixed to the lower side of the filter hole 12.

[0038] When drainage is required, the drainage filter device is thrown into the water. The water will pass through the permeable plate 54 to exert water pressure on the elastic membrane 401, that is, the elastic membrane 401 will be pushed into the box body 4, thereby forming a positive pressure in the enclosed space, which will push the first column 42 and the second column 43 to move outward until the second column 43 is disengaged from the locking groove 51. After the second column 43 is disengaged from the locking groove 51, the locking piece 5 is unlocked. At this time, the elastic telescopic tube 3 will drive the horizontal plate 2 to rebound upward, exposing all the filter holes 12 to the water, thereby preparing for the drainage operation.

[0039] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. A drainage filter device, comprising a vertical pipe, characterized in that: The upper end of the vertical pipe is used to connect the water pump, the lower end of the vertical pipe is closed, and a plurality of filter holes are opened on the lower side of the vertical pipe, which are distributed circumferentially around the axis of the vertical pipe. A horizontal plate that can slide up and down is sleeved on the outer side of the vertical pipe, and the horizontal plate is fixedly connected to the upper side of the vertical pipe through an elastic element. A locking bolt assembly is provided at the lower end of the vertical pipe, and the horizontal plate is provided with a locking buckle assembly that matches the locking bolt assembly. The locking bolt assembly cooperates with the locking buckle assembly to fix the horizontal plate to the lower side of the filter hole. The locking bolt assembly includes a box body located at the lower end of the vertical pipe, and one side of the box body An opening, the opening of the box body is fixedly connected to an elastic membrane; a horizontal cylinder connected to the box body is fixedly connected to the side of the box body, a first column is sealingly and slidingly connected in the horizontal cylinder, and a second column is fixedly connected to one end of the first column away from the box body, and the diameter of the second column is larger than the diameter of the first column; the lock assembly includes a locking plate fixedly connected to the lower end of the horizontal plate, the position of the locking plate matches the position of the horizontal cylinder, the locking plate is provided with a locking groove matching the diameter of the second column, and the bottom wall of the lock groove is provided with a vertical through groove matching the diameter of the first column.

2. A drainage filter device according to claim 1, characterized in that: The shape of the horizontal plate is circular, and the inner diameter of the horizontal plate matches the outer diameter of the vertical pipe.

3. A drainage filter device according to claim 1, characterized in that: The elastic element is an elastic telescopic tube, and in a natural state, the elastic telescopic tube is in a contracted state.

4. A drainage filter device according to claim 1, characterized in that: One end of the first column away from the second column is fixedly connected to a limiting member located in the box body, and the limiting member can limit the first column from completely separating from the transverse cylinder.

5. The drainage filter device according to claim 1, characterized in that: The opening of the box body is fixedly connected with a water-permeable plate located outside the elastic membrane.

6. A drainage filter device according to claim 5, characterized in that: The opening of the box body is located at the lower end of the box body.

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