Grid for filtering

Abstract

The utility model relates to the technical field of grids, in particular to a grid for filtering, which comprises a square fixed frame, a movable frame is vertically arranged at the lower part of the inner side wall of the fixed frame, the movable frame is connected with the fixed frame through a limiting mechanism, the movable frame is connected with a lifting control mechanism, a first grid is vertically and fixedly mounted on the inner side wall of the movable frame, and a second grid is vertically and fixedly mounted on the inner side wall of the first grid. A limiting rod is vertically and fixedly installed on the inner side wall of the movable frame, a second grid is vertically and slidably connected to the outer side wall of the limiting rod in a sleeving mode, the second grid is in sliding fit with the first grid and the movable frame, a groove correspondingly matched with the second grid is formed in the inner top face of the movable frame, and a first motor is vertically and fixedly installed on the outer top face of the movable frame; according to the sewage treatment device disclosed by the utility model, the passing aperture can be controlled and adjusted, and the sewage treatment device is higher in applicability aiming at sewage sundries of different specifications.

Description

Technical Field

[0001] The utility model relates to the technical field of gratings, in particular to a grating for filtration. Background Art

[0002] The grating is the most important auxiliary equipment in the sewage pumping station. Generally, the grating is composed of a group of parallel grid bars and is obliquely arranged at the inlet of the sump of the pumping station.

[0003] However, in the prior art, the aperture of the small holes of the grating is fixed, and it cannot be adjusted and adapted to sewage containing sundries of different sizes, so the applicability is poor. At the same time, the position of the grating is fixed, which is not convenient for cleaning the sundries on the surface of the grating after filtration. For this reason, we propose a grating for filtration. Summary of the Utility Model

[0004] The utility model provides a grating for filtration, which solves the above-mentioned technical problems.

[0005] The solution of the utility model to the above technical problems is as follows: A grating for filtration includes a rectangular fixed frame. A movable frame is vertically arranged at the lower part of the inner side wall of the fixed frame. The movable frame is connected to the fixed frame through a limiting mechanism. The movable frame is connected with a lifting control mechanism. A first grating is vertically and fixedly installed on the inner side wall of the movable frame. A limiting rod is vertically and fixedly installed on the inner side wall of the movable frame. A second grating is vertically and slidably sleeved on the outer side wall of the limiting rod. The second grating is slidably matched with the first grating and the movable frame respectively. A groove corresponding to and fitting the second grating is opened on the inner top surface of the movable frame. A first motor is vertically and fixedly installed on the outer top surface of the movable frame. The output shaft of the first motor is vertically fixedly installed with a screw rod that rotates through the upper wall of the movable frame. The screw rod threadedly penetrates the second grating, and the lower end of the screw rod is rotatably connected to the inner bottom surface of the movable frame.

[0006] Preferably, the limiting mechanism includes a chute vertically opened on the inner side wall of the fixed frame. A slider is fixedly installed on the outer side wall of the movable frame. The slider is slidably connected to the inner side wall of the chute.

[0007] Preferably, the lifting control mechanism includes a second motor horizontally and fixedly installed on the upper end surface of the fixed frame. A plurality of support blocks are fixedly installed on the upper end surface of the fixed frame. The output shaft of the second motor rotates through the plurality of support blocks. The output shaft of the second motor is fixedly sleeved with a winding wheel, and is fixedly connected to the movable frame through a traction rope that movably penetrates the fixed frame.

[0008] Preferably, a circular groove penetrating the fixed frame is arranged in the middle of the upper wall of the fixed frame. The circular groove corresponds to the first motor up and down. A waterproof cover fixedly installed on the upper end surface of the movable frame is wrapped outside the first motor.

[0009] Preferably, an installation column is vertically and fixedly installed on the inner bottom surface of the moving frame. A collection frame is slidably fitted to the lower part of the moving frame, and the collection frame is movably sleeved on the outer side wall of the installation column.

[0010] The beneficial effects of the present utility model are as follows:

[0011] 1. By setting the combination of the first grille and the second grille for sewage filtration, the second grille is slidably fitted with the first grille. The second grille can be indirectly controlled by the first motor to move up and down, adjusting the overlap degree of the first grille and the second grille, so as to control and change the volume of impurities that can pass through the first grille and the second grille, meeting different filtration requirements;

[0012] 2. By setting the second motor to drive the winding wheel to rotate, the moving frame can be pulled upward to lift the first grille and the second grille upward, facilitating the cleaning of the surfaces of the first grille and the second grille. A collection frame is arranged at the lower part of the moving frame to collect some impurities, making the impurity cleaning more convenient.

[0013] The above description is only an overview of the technical solution of the present utility model. In order to be able to understand the technical means of the present utility model more clearly and implement it in accordance with the content of the description, the following takes the preferred embodiments of the present utility model and combines with the drawings to describe in detail as follows. The specific implementation manners of the present utility model are given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present utility model, form a part of this application, and the schematic embodiments and descriptions of the present utility model are used to explain the present utility model, and do not constitute an improper limitation to the present utility model. In the drawings:

[0015] Figure 1 is a schematic structural diagram of a grille for filtration proposed by the present utility model;

[0016] Figure 2 is a schematic structural diagram of the fixed frame of a grille for filtration proposed by the present utility model;

[0017] Figure 3 is a schematic structural diagram of the moving frame of a grille for filtration proposed by the present utility model;

[0018] Figure 4 is a schematic structural diagram of the second grille of a grille for filtration proposed by the present utility model;

[0019] Figure 5 is a schematic structural diagram of the screw rod of a grille for filtration proposed by the present utility model.

[0020] Legend Explanation:

[0021] 1. Fixed frame; 2. Movable frame; 3. First grille; 4. Limit rod; 5. Second grille; 6. Groove; 7. First motor; 8. Screw; 9. Second motor; 10. Winding wheel; 11. Traction rope; 12. Circular groove; 13. Waterproof cover; 14. Mounting post; 15. Collection box. Detailed implementation manners

[0022] The following combines the attached Figures 1-5 Describe the principles and features of the present invention. The examples cited are only used to explain the present invention and are not used to limit the scope of the present invention. In the following paragraphs, the present invention will be described more specifically by way of example with reference to the accompanying drawings. According to the following description and claims, the advantages and features of the present invention will be clearer. It should be noted that the drawings are all in a very simplified form and use non-precise scales, only for the purpose of conveniently and clearly assisting in explaining the embodiments of the present invention.

[0023] Embodiment 1

[0024] As Figures 1-5 shown, a grille for filtration of the present invention includes a rectangular fixed frame 1 with a circular groove 12 penetrating the fixed frame 1 in the middle of the upper wall of the fixed frame 1. The circular groove 12 corresponds to the first motor 7 up and down. The first motor 7 is wrapped with a waterproof cover 13 fixedly installed on the upper end face of the movable frame 2. The circular groove 12 leaves enough space for the waterproof cover 13 to ensure that when the movable frame 2 is lifted upward, the waterproof cover 13 can enter the circular groove 12 to avoid collision between the waterproof cover 13 and the upper wall of the fixed frame 1, ensuring that the movable frame 2 can move upward to fit the upper wall of the fixed frame 1. A movable frame 2 is vertically arranged on the lower part of the inner side wall of the fixed frame 1. The movable frame 2 is connected to the fixed frame 1 through a limiting mechanism. The limiting mechanism includes a sliding groove vertically opened on the inner side wall of the fixed frame 1. A slider is fixedly installed on the outer side wall of the movable frame 2. The slider is slidably connected to the inner side wall of the sliding groove. The sliding groove and the slider are provided to realize the docking of the fixed frame 1 and the movable frame 2, ensuring that the movable frame 2 can only move up and down, making the up and down movement of the movable frame 2 more stable and safe. The movable frame 2 is connected with a lifting control mechanism. A first grille 3 is vertically and fixedly installed on the inner side wall of the movable frame 2. A limit rod 4 is vertically and fixedly installed on the inner side wall of the movable frame 2. A second grille 5 is vertically slidably sleeved on the outer side wall of the limit rod 4. The second grille 5 is slidably matched with the first grille 3 and the movable frame 2 respectively. A groove 6 corresponding to and fitting the second grille 5 is opened on the inner top surface of the movable frame 2. A first motor 7 is vertically and fixedly installed on the outer top surface of the movable frame 2. The output shaft of the first motor 7 is vertically and fixedly installed with a screw 8 that rotates through the upper wall of the movable frame 2. The screw 8 threadedly penetrates the second grille 5, and the lower end of the screw 8 is rotatably connected to the inner bottom surface of the movable frame 2.

[0025] Embodiment 2

[0026] As Figures 1-5As shown in the figure, the lifting control mechanism includes a second motor 9 horizontally and fixedly installed on the upper end face of the fixed frame 1. The second motor 9 is a servo motor that can rotate forward and backward. A plurality of support blocks are fixedly installed on the upper end face of the fixed frame 1. The output shaft of the second motor 9 rotatably penetrates through the plurality of support blocks. The output shaft of the second motor 9 is fixedly sleeved with a winding wheel 10. A traction rope 11 that movably penetrates through the fixed frame 1 is fixedly connected to the moving frame 2. A mounting column 14 is vertically and fixedly installed on the inner bottom surface of the moving frame 2. A collection frame 15 is slidably fitted in the lower part of the moving frame 2. Filter holes are evenly formed on the bottom surface of the collection frame 15. The collection frame 15 is movably sleeved on the outer side wall of the mounting column 14. The collection frame 15 is inserted and fixed through the mounting column 14, making the disassembly and installation of the collection frame 15 more rapid and convenient. The second motor 9 rotates to drive the winding wheel 10 to rotate. The traction rope 11 winds around the winding wheel 10. The traction rope 11 upwardly pulls the moving frame 2. The moving frame 2 slowly moves upward to fit against the inner top surface of the fixed frame 1. The first grille 3 and the second grille 5 move upward synchronously with the moving frame 2. Then, the surfaces of the first grille 3 and the second grille 5 can be cleaned.

[0027] Working principle:

[0028] When in use, install and fix the device in the sewage passing trough, ensure that the moving frame 2 fits against the lower wall of the fixed frame 1, and insert the collection frame 15 onto the mounting column 14 of the moving frame 2. According to the need, control the start of the second motor 9. The second motor 9 drives the screw rod 8 to rotate. The screw rod 8 rotates to drive the second grille 5 to move upward, causing the second grille 5 and the first grille 3 to gradually be misaligned, changing the passable aperture between the second grille 5 and the first grille 3. After the adjustment is completed, sewage can be discharged into the sewage passing trough. The sewage passes through the first grille 3 and the second grille 5 for filtration. The sewage passes through the first grille 3 and the second grille 5, and the sundries remain on one side of the first grille 3. Some directly sink and fall into the collection frame 15, while some adhere to the surface of the first grille 3. After the filtration process, control the second motor 9 to drive the winding wheel 10 to rotate, and use the traction rope 11 to upwardly pull the moving frame 2. Some of the sundries adhering to the surface of the first grille 3 also fall into the collection frame 15. After the moving frame 2 contacts the upper wall of the fixed frame 1, the first grille 3 and the second grille 5 can be cleaned.

[0029] The above is only the preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Any person skilled in the art of this industry can smoothly implement the present invention according to the illustrations in the specification and the above description. However, any minor changes, modifications, and equivalent variations made by those skilled in the art within the scope of the technical solution of the present invention by using the technical content disclosed above are equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications, and variations made to the above embodiments based on the essential technology of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A grille for filtration, comprising a mouth-shaped fixed frame (1), characterized in that: A moving frame (2) is vertically arranged at the lower part of the inner side wall of the fixed frame (1). The moving frame (2) is connected to the fixed frame (1) through a limiting mechanism. The moving frame (2) is connected with a lifting control mechanism. A first grid (3) is vertically and fixedly installed on the inner side wall of the moving frame (2). A limiting rod (4) is vertically and fixedly installed on the inner side wall of the moving frame (2). A second grid (5) is vertically and slidably sleeved on the outer side wall of the limiting rod (4). The second grid (5) is slidably matched with the first grid (3) and the moving frame (2) respectively. A groove (6) corresponding to and fitting with the second grid (5) is formed on the inner top surface of the moving frame (2). A first motor (7) is vertically and fixedly installed on the outer top surface of the moving frame (2). The output shaft of the first motor (7) is vertically and fixedly installed with a screw rod (8) that rotatably penetrates the upper wall of the moving frame (2). The screw rod (8) threadedly penetrates the second grid (5). The lower end of the screw rod (8) is rotatably connected to the inner bottom surface of the moving frame (2).

2. The grille for filtration according to claim 1, characterized in that: The limiting mechanism includes a chute vertically formed on the inner side wall of the fixed frame (1). A slider is fixedly installed on the outer side wall of the moving frame (2). The slider is slidably connected to the inner side wall of the chute.

3. The grid for filtration according to claim 1, characterized in that: The lifting control mechanism includes a second motor (9) horizontally and fixedly installed on the upper end surface of the fixed frame (1). A plurality of support blocks are fixedly installed on the upper end surface of the fixed frame (1). The output shaft of the second motor (9) rotatably penetrates the plurality of support blocks. The output shaft of the second motor (9) is fixedly sleeved with a winding wheel (10). A traction rope (11) that movably penetrates the fixed frame (1) is fixedly connected to the moving frame (2).

4. The grille for filtration according to claim 1, characterized in that: A circular groove (12) penetrating the fixed frame (1) is arranged in the middle of the upper wall of the fixed frame (1). The circular groove (12) corresponds to the first motor (7) up and down. A waterproof cover (13) fixedly installed on the upper end surface of the moving frame (2) is wrapped outside the first motor (7).

5. A grille for filtration according to claim 1, characterized in that: An installation column (14) is vertically and fixedly installed on the inner bottom surface of the moving frame (2). A collection box (15) is slidably matched with the lower part of the moving frame (2). The collection box (15) is movably sleeved on the outer side wall of the installation column (14).

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