Municipal drainage filtering device

Abstract

The utility model relates to the technical field of drainage filtering, and discloses a municipal drainage filtering device which comprises a shell and a top cover, the shell and the top cover are connected through bolts, the bottom surface of the shell is fixedly connected with a plurality of supporting legs which are arranged at equal intervals, and the shell is sequentially provided with a water inlet, a water outlet and a sewage outlet from top to bottom. The water inlet is located on the left side of the shell, the water outlet is located on the right side of the shell, and the drain outlet is located below the shell. By arranging the compression spring, the connecting ring, the guide block, the guide sleeve, the guide groove, the cleaning brush and the filter screen, the compression spring can be shortened due to abrasion of bristles and rebound to drive the connecting ring to move in the direction close to the filter screen, the connecting ring drives the guide sleeve to move in the direction close to the filter screen, and the guide block is in sliding connection with the guide groove; the guide sleeve pushes the cleaning brush to move towards the filter screen, so that the cleaning brush abuts against the filter screen, and the situation that the bristles do not abut against the filter screen after being abraded to be too short, and scale deposited on the filter screen cannot be effectively removed is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage filtration, and more specifically to a municipal drainage filtration device. Background Art

[0002] The municipal drainage system is a network in urban infrastructure used to collect, transport and treat urban sewage and rainwater. This system is essential for maintaining urban environmental sanitation, preventing floods and protecting public health. The key components of the municipal drainage system include drainage pipe networks, pumping stations, sewage treatment plants, etc. The fully automatic cleaning filter is mainly used in the pumping station in the municipal drainage system. It is installed at the suction port of the pump to prevent solid particles from entering the pump, reducing the wear and maintenance requirements of the pump.

[0003] The fully automatic cleaning filter is a special filter device that uses a filter to intercept solid impurities and particulate matter in the water, thereby reducing the turbidity of the water and improving the water quality. Sewage enters the filter from the water inlet, and then the impurities in the water are intercepted by the filter connected to the water inlet. When the fully automatic cleaning filter has been used for a period of time, the control system on it will automatically open the sewage outlet set at the bottom of the filter, and then the impurities on the filter will be cleaned by the cleaning mechanism in the body so that they can be discharged from the sewage outlet.

[0004] The cleaning mechanism of most existing fully automatic cleaning filters is a cleaning brush that is installed in the filter. The motor drives the rotating shaft of the cleaning brush to rotate, thereby cleaning the impurities attached to the filter. As the use time increases, the cleaning brush will wear due to continuous contact with the filter, causing the bristles of the cleaning brush to wear and become shorter. The bristles of the existing cleaning brushes are easily out of contact with the filter when they are worn too short. If the cleaning brush is severely worn, it will not be able to effectively remove the dirt on the filter. Personnel are required to promptly check and adjust the position of the cleaning brush or replace it with a new cleaning brush. In addition, the cleaning brush of the existing self-cleaning filter with a relatively simple structure is not removable and forms a single component with the rotating shaft. When the cleaning brush is worn, personnel need to replace it as a whole, which increases maintenance costs and workload. Based on this, we propose a municipal drainage filtration device. Utility Model Content

[0005] In order to overcome the above defects of the prior art, the utility model provides a municipal drainage filtering device to solve the problem that the bristles of the existing cleaning brush in the above background technology are worn too short and do not fit against the filter screen, thus failing to effectively remove the dirt on the filter screen.

[0006] The utility model provides the following technical solutions: a municipal drainage filtering device, comprising a shell and a top cover, the shell and the top cover are connected by bolts, the bottom surface of the shell is fixedly connected with a plurality of equally spaced legs, a water inlet, a drain outlet, and a sewage outlet are sequentially opened on the shell from top to bottom, the water inlet is located on the left side of the shell, the drain outlet is located on the right side of the shell, and the sewage outlet is located below the shell, a driving motor is fixedly installed above the top cover, a control system is fixedly installed on the side wall of the shell, the control system is electrically connected to the driving motor, and the output shaft of the driving motor is fixedly connected to the top cover. A reducer is fixedly connected, and a cleaning mechanism is connected to the bottom end of the reducer. The cleaning mechanism is located below the top cover. An upper mounting ring is fixedly connected to the inner wall of the shell, and the upper mounting ring is located between the water inlet and the drain outlet. A lower mounting ring is fixedly connected to the inner wall of the shell, and the lower mounting ring is located between the drain outlet and the sewage outlet. A first mounting groove is provided on the top surface of the upper mounting ring, and a second mounting groove is provided on the top surface of the lower mounting ring. A filter screen is provided in the shell, and the filter screen is connected to the upper mounting ring by bolts. The bottom end of the filter screen is against the inner wall of the second mounting groove, and the cleaning mechanism is located in the shell.

[0007] Furthermore, the cleaning mechanism includes a rotating shaft, a cleaning brush and an adjusting assembly. The rotating shaft is located inside the filter, and the top of the rotating shaft is connected to the reducer. There are two cleaning brushes, which are symmetrically arranged, and one side of the cleaning brush is against the inner wall of the filter. There are four groups of adjusting assemblies, and two groups of adjusting assemblies located on the same side are connected to the same cleaning brush, and the cleaning brush is connected to the rotating shaft through the adjusting assembly.

[0008] Furthermore, the adjustment assembly includes a mounting rod, a semi-threaded screw, a compression spring, a connecting ring, and a guide sleeve. The mounting rod is fixedly connected to the peripheral side of the rotating shaft, a clearance groove is provided at one end of the mounting rod away from the shell, a thread groove is provided on the inner wall of the clearance groove, one end of the semi-threaded screw is threadedly connected to the thread groove, the compression spring is sleeved on the peripheral side of the semi-threaded screw, one end of the compression spring is abutted against the inner wall of the clearance groove, the connecting ring is sleeved on the peripheral side of the semi-threaded screw, the connecting ring is slidably connected to the peripheral side of the semi-threaded screw, and the other end of the compression spring is fixedly connected to the side wall of the connecting ring The other end of the semi-threaded screw is fixedly connected to a fixed plate, and a plurality of guide blocks are fixedly connected to the circumferential side of the fixed plate. The guide blocks are arranged at equal intervals. The guide sleeve is fixedly connected to the side of the connecting ring away from the mounting rod. The inner wall of the guide sleeve is provided with a plurality of guide grooves arranged at equal intervals. The guide block is slidably connected to the inner wall of the guide groove. A rotating ring is fixedly connected to the circumferential side of the guide sleeve. A limiting ring is arranged on the circumferential side of the rotating ring. A rotating groove is arranged on one side of the limiting ring. The rotating ring is rotatably connected to the inner wall of the rotating groove, and the limiting ring is fixedly connected to the side wall of the corresponding cleaning brush.

[0009] Furthermore, a protective sleeve is fixedly connected to the side wall of the connecting ring, the protective sleeve is sleeved on the peripheral side of the mounting rod, the protective sleeve is slidably connected to the peripheral side of the mounting rod, and a sealing gasket is arranged on the inner wall of the protective sleeve.

[0010] Furthermore, the diameter of the fixing plate is larger than the inner wall diameter of the connecting ring, and the diameter of the fixing plate is larger than the diameter of the half-thread screw.

[0011] Furthermore, the inner wall of the lower mounting ring is fixedly connected with a support frame, and the bottom end of the rotating shaft is rotatably connected to the support frame.

[0012] Technical effects and advantages of the utility model:

[0013] 1. By arranging a compression spring, a connecting ring, a guide block, a guide sleeve, a guide groove, a cleaning brush and a filter screen, the compression spring will rebound due to the wear and shortening of the bristles, driving the connecting ring to move toward the filter screen, the connecting ring drives the guide sleeve to move toward the filter screen, the guide block is slidably connected to the guide groove, and the guide sleeve pushes the cleaning brush toward the filter screen, thereby making the cleaning brush and the filter screen counteract each other, avoiding the bristles from being worn too short and not counteracting the filter screen, and failing to effectively remove the dirt on the filter screen.

[0014] 2. By setting the mounting rod, thread groove, half-thread screw, guide block, guide sleeve, guide groove, rotating ring, and rotating groove, personnel can drive the rotating ring to rotate in the rotating groove by rotating the guide sleeve. Since the guide block is in the guide groove, the rotation of the guide sleeve will drive the fixed plate to rotate, and the fixed plate will drive the half-thread screw to rotate, so that the half-thread screw moves out of the thread groove. When the corresponding half-thread screws are all moved out of the thread groove, personnel can remove the cleaning brush for replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 is a schematic diagram of the cross-sectional structure of the shell area;

[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of the filter area;

[0018] Figure 4 A schematic diagram of the cross-sectional structure of the adjustment component area;

[0019] Figure 5 It is a schematic diagram of the exploded structure of the regulating component;

[0020] Figure 6 Schematic diagram of the structure of the upper mounting ring area.

[0021] The accompanying drawings are marked as follows: 1. Shell; 2. Top cover; 3. Support foot; 4. Water inlet; 5. Drain outlet; 6. Sewage outlet; 7. Control system; 8. Drive motor; 9. Reducer; 10. Rotating shaft; 11. Filter; 12. Upper mounting ring; 13. First mounting groove; 14. Lower mounting ring; 15. Second mounting groove; 16. Support frame; 17. Mounting rod; 18. Threaded groove; 19. Give way groove; 20. Semi-threaded screw; 21. Compression spring; 22. Connecting ring; 23. Protective sleeve; 24. Fixed plate; 25. Guide block; 26. Guide sleeve; 27. Guide groove; 28. Rotating ring; 29. ​​Limiting ring; 30. Rotating groove; 31. Cleaning brush. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement schemes or common means, they are no longer described in detail herein, but still fall within the scope of protection of the present application.

[0023] Attached Figure 1 - Figure 6 It is the best embodiment of the utility model, and the following Figure 1 - Figure 6 The utility model is further described.

[0024] See attached Figure 1 - Figure 6 A municipal drainage filtering device comprises a shell 1 and a top cover 2, and the shell 1 and the top cover 2 are connected by bolts. The bottom surface of the shell 1 is fixedly connected with a plurality of equally spaced legs 3. The shell 1 is provided with a water inlet 4, a drain outlet 5, and a sewage outlet 6 from top to bottom. The water inlet 4 is located on the left side of the shell 1, the drain outlet 5 is located on the right side of the shell 1, and the sewage outlet 6 is located below the shell 1. A driving motor 8 is fixedly installed above the top cover 2. A control system 7 is fixedly installed on the side wall of the shell 1, and the control system 7 is electrically connected to the driving motor 8. A reducer 9 is fixedly connected to the output shaft of the driving motor 8, and a cleaning mechanism is connected to the bottom end of the reducer 9. The cleaning mechanism is located below the top cover 2, an upper mounting ring 12 is fixedly connected to the inner wall of the shell 1, and the upper mounting ring 12 is located between the water inlet 4 and the drain outlet 5, and a lower mounting ring 14 is fixedly connected to the inner wall of the shell 1, and the lower mounting ring 14 is located between the drain outlet 5 and the sewage outlet 6. The top surface of the upper mounting ring 12 is provided with a first mounting groove 13, and the top surface of the lower mounting ring 14 is provided with a second mounting groove 15. A filter screen 11 is arranged in the housing 1, and the filter screen 11 is connected to the upper mounting ring 12 by bolts, and the bottom end of the filter screen 11 abuts against the inner wall of the second mounting groove 15, and the cleaning mechanism is located in the housing 1.

[0025] In this embodiment, the filter screen 11 separates the water inlet 4 from the drain outlet 5 under the cooperation of the upper mounting ring 12 and the lower mounting ring 14. When the drain outlet 6 is closed, sewage enters the housing 1 from the water inlet 4, and the sewage passes through the filter screen 11 under the action of water pressure, and the impurities in the sewage are intercepted by the filter screen 11, thereby filtering the sewage.

[0026] Specifically, the cleaning mechanism includes a rotating shaft 10, a cleaning brush 31 and an adjusting assembly. The rotating shaft 10 is located in the filter 11, and the top of the rotating shaft 10 is connected to the reducer 9. There are two cleaning brushes 31, and the two cleaning brushes 31 are symmetrically arranged. One side of the cleaning brush 31 is against the inner wall of the filter 11. There are four groups of adjusting assemblies, and two groups of adjusting assemblies located on the same side are connected to the same cleaning brush 31, and the cleaning brush 31 is connected to the rotating shaft 10 through the adjusting assembly.

[0027] In this embodiment, the brush surface of the cleaning brush 31 abuts against the inner wall of the filter screen 11, so that when the rotating shaft 10 rotates, the cleaning brush 31 is driven to brush away impurities on the filter screen 11. When cleaning the filter screen 11, the sewage outlet 6 can be opened, and the cleaning brush 31 can be driven by the rotating shaft 10 to rotate in the filter screen 11, so that the impurities attached to the inner side of the filter screen 11 can be cleaned and dropped into the sewage outlet 6.

[0028] Specifically, the adjustment assembly includes a mounting rod 17, a semi-threaded screw 20, a compression spring 21, a connecting ring 22, and a guide sleeve 26. The mounting rod 17 is fixedly connected to the circumference of the rotating shaft 10, and a clearance groove 19 is provided at one end of the mounting rod 17 away from the housing 1, and a thread groove 18 is provided on the inner wall of the clearance groove 19, and one end of the semi-threaded screw 20 is threadedly connected to the thread groove 18. The compression spring 21 is sleeved on the circumference of the semi-threaded screw 20, and one end of the compression spring 21 abuts against the inner wall of the clearance groove 19. The connecting ring 22 is sleeved on the circumference of the semi-threaded screw 20, and the connecting ring 22 is slidably connected to the circumference of the semi-threaded screw 20, and the other end of the compression spring 21 is fixedly connected to the side wall of the connecting ring 22. The other end of the semi-threaded screw 20 is fixedly connected to a fixing plate 24, and a plurality of guide blocks 25 are fixedly connected to the circumference of the fixing plate 24, and the guide blocks 25 are arranged at equal intervals. The guide sleeve 26 is fixedly connected to the side of the connecting ring 22 away from the mounting rod 17. The inner wall of the guide sleeve 26 is provided with a plurality of guide grooves 27 arranged at equal intervals. The guide block 25 is slidably connected to the inner wall of the guide groove 27. A rotating ring 28 is fixedly connected to the peripheral side of the guide sleeve 26. A limiting ring 29 is provided on the peripheral side of the rotating ring 28. A rotating groove 30 is provided on one side of the limiting ring 29. The rotating ring 28 is rotatably connected to the inner wall of the rotating groove 30. The limiting ring 29 is fixedly connected to the side wall of the corresponding cleaning brush 31.

[0029] In this embodiment, the compressed compression spring 21 will increase the rebound space due to the wear and shortening of the bristles, so that the rebound of the compression spring 21 drives the connecting ring 22 to move toward the filter screen 11, and the connecting ring 22 drives the guide sleeve 26 to move toward the filter screen 11. At this time, the guide block 25 is slidably connected with the guide groove 27, and the guide sleeve 26 pushes the cleaning brush 31 to move toward the filter screen 11, so that the cleaning brush 31 and the filter screen 11 are abutted against each other, avoiding the non-abutment of the filter screen 11 due to the bristles being too short after being worn.

[0030] Specifically, a protective sleeve 23 is fixedly connected to the side wall of the connecting ring 22 . The protective sleeve 23 is sleeved on the circumference of the mounting rod 17 . The protective sleeve 23 is slidably connected to the circumference of the mounting rod 17 . A sealing gasket is provided on the inner wall of the protective sleeve 23 .

[0031] In this embodiment, the length of the protective sleeve 23 is greater than the length of the mounting rod 17 , and a sealing gasket is provided on the inner wall of the protective sleeve 23 to prevent impurities from being stuck on the compression spring 21 and affecting the rebound of the compression spring 21 .

[0032] Specifically, the diameter of the fixing plate 24 is larger than the inner wall diameter of the connecting ring 22 , and the diameter of the fixing plate 24 is larger than the diameter of the half-thread screw 20 .

[0033] In this embodiment, the diameter of the fixing plate 24 is larger than the inner wall diameter of the connecting ring 22 , so that the connecting ring 22 can limit the fixing plate 24 and prevent the fixing plate 24 from falling off from the connecting ring 22 .

[0034] Specifically, a support frame 16 is fixedly connected to the inner wall of the lower mounting ring 14 , and the bottom end of the rotating shaft 10 is rotatably connected to the support frame 16 .

[0035] In this embodiment, the support frame 16 can limit the rotation shaft 10 to prevent the lower end of the rotation shaft 10 from shaking too much during use, thereby preventing the filter screen 11 from being damaged.

[0036] The working principle and use process of the utility model are as follows: when the cleaning brush 31 in the device wears out with the increase of usage time and the bristles become shorter, the compressed compression spring 21 will increase the rebound space due to the shortening of the bristles, so that the compression spring 21 rebounds and drives the connecting ring 22 to move in the direction close to the filter screen 11, and at this time the connecting ring 22 drives the guide sleeve 26 to move in the direction close to the filter screen 11. At this time, the guide block 25 is slidably connected with the guide groove 27, and the guide sleeve 26 pushes the cleaning brush 31 to move in the direction of the filter screen 11, so that the cleaning brush 31 and the filter screen 11 are abutted against each other, so as to avoid the bristles from not abutting against the filter screen 11 after being worn too short, and the dirt on the filter screen 11 cannot be effectively removed.

[0037] When the cleaning brush 31 in the device needs to be replaced, the personnel first closes the device, then opens the top cover 2, and removes the rotating shaft 10 from the reducer 9. At this time, the brush surface of the cleaning brush 31 is against the inner wall of the filter screen 11. When the personnel directly lifts it upward, the cleaning brush 31 and the inner wall of the filter screen 11 continue to rub against each other, and the friction force is too large, so it is more difficult to remove it. Therefore, the personnel need to push the cleaning brush 31 toward the rotating shaft 10 first, and the cleaning brush 31 drives the guide sleeve 26 to move in the direction close to the rotating shaft 10. The guide block 25 is slidably connected to the guide groove 27, and the guide sleeve 26 drives the connecting ring 22 to squeeze the compression spring 21. At this time, the cleaning brush 31 and the inner wall of the filter screen 11 are no longer against each other, which is convenient for the personnel to remove the cleaning mechanism from the filter screen 11. When the personnel takes the cleaning mechanism out of the filter 11, the personnel rotates the guide sleeve 26, and the guide sleeve 26 drives the rotating ring 28 to rotate in the rotating groove 30. Since the guide block 25 is in the guide groove 27, the rotation of the guide sleeve 26 will drive the fixed plate 24 to rotate, and the fixed plate 24 drives the semi-threaded screw 20 to rotate, so that the semi-threaded screw 20 moves out of the thread groove 18. When the corresponding semi-threaded screws 20 are all moved out of the thread groove 18, the personnel can remove the cleaning brush 31 for replacement.

[0038] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A municipal drainage filtering device, comprising a housing (1) and a top cover (2), characterized in that: The shell (1) and the top cover (2) are connected by bolts. The bottom surface of the shell (1) is fixedly connected to a plurality of equally spaced support legs (3). The shell (1) is provided with a water inlet (4), a water outlet (5), and a sewage outlet (6) in sequence from top to bottom. The water inlet (4) is located on the left side of the shell (1), the water outlet (5) is located on the right side of the shell (1), and the sewage outlet (6) is located below the shell (1). A drive motor (8) is fixedly mounted above the top cover (2). A control system (7) is fixedly mounted on the side wall of the shell (1). The control system (7) is electrically connected to the drive motor (8). The output shaft of the drive motor (8) is fixedly connected to a reducer (9). The bottom end of the reducer (9) is connected to a cleaning mechanism. The cleaning mechanism is located below the top cover (2); an upper mounting ring (12) is fixedly connected to the inner wall of the shell (1); the upper mounting ring (12) is located between the water inlet (4) and the drain outlet (5); a lower mounting ring (14) is fixedly connected to the inner wall of the shell (1); the lower mounting ring (14) is located between the drain outlet (5) and the sewage outlet (6); a first mounting groove (13) is provided on the top surface of the upper mounting ring (12); a second mounting groove (15) is provided on the top surface of the lower mounting ring (14); a filter screen (11) is provided inside the shell (1); the filter screen (11) is connected to the upper mounting ring (12) by bolts; the bottom end of the filter screen (11) abuts against the inner wall of the second mounting groove (15); and the cleaning mechanism is located inside the shell (1).

2. A municipal drainage filtration device according to claim 1, characterized in that: The cleaning mechanism comprises a rotating shaft (10), a cleaning brush (31) and an adjusting assembly. The rotating shaft (10) is located in the filter screen (11). The top end of the rotating shaft (10) is connected to the reducer (9). There are two cleaning brushes (31). The two cleaning brushes (31) are symmetrically arranged. One side of the cleaning brush (31) abuts against the inner wall of the filter screen (11). There are four groups of adjusting assemblies. Two groups of adjusting assemblies located on the same side are connected to the same cleaning brush (31). The cleaning brush (31) is connected to the rotating shaft (10) via the adjusting assembly.

3. A municipal drainage filtration device according to claim 2, characterized in that: The adjustment assembly comprises a mounting rod (17), a semi-threaded screw rod (20), a compression spring (21), a connecting ring (22) and a guide sleeve (26); the mounting rod (17) is fixedly connected to the circumference of the rotating shaft (10); a clearance groove (19) is provided at one end of the mounting rod (17) away from the housing (1); a thread groove (18) is provided on the inner wall of the clearance groove (19); one end of the semi-threaded screw rod (20) is threadedly connected to the thread groove (18); the compression spring (21) is sleeved on the circumference of the semi-threaded screw rod (20); one end of the compression spring (21) abuts against the inner wall of the clearance groove (19); the connecting ring (22) is sleeved on the circumference of the semi-threaded screw rod (20); the connecting ring (22) is slidably connected to the circumference of the semi-threaded screw rod (20); and the other end of the compression spring (21) is fixedly connected to the side wall of the connecting ring (22). The other end of the semi-threaded screw (20) is fixedly connected to a fixed plate (24), and a plurality of guide blocks (25) are fixedly connected to the peripheral side of the fixed plate (24), and the guide blocks (25) are arranged at equal intervals. The guide sleeve (26) is fixedly connected to the side of the connecting ring (22) away from the mounting rod (17), and the inner wall of the guide sleeve (26) is provided with a plurality of guide grooves (27) arranged at equal intervals. The guide blocks (25) are slidably connected to the inner wall of the guide groove (27), and a rotating ring (28) is fixedly connected to the peripheral side of the guide sleeve (26). A limiting ring (29) is provided on the peripheral side of the rotating ring (28), and a rotating groove (30) is provided on one side of the limiting ring (29). The rotating ring (28) is rotatably connected to the inner wall of the rotating groove (30), and the limiting ring (29) is fixedly connected to the side wall of the corresponding cleaning brush (31).

4. A municipal drainage filtration device according to claim 3, characterized in that: A protective sleeve (23) is fixedly connected to the side wall of the connecting ring (22); the protective sleeve (23) is sleeved on the circumference of the mounting rod (17); the protective sleeve (23) is slidably connected to the circumference of the mounting rod (17); and a sealing gasket is provided on the inner wall of the protective sleeve (23).

5. A municipal drainage filtration device according to claim 3, characterized in that: The diameter of the fixing plate (24) is greater than the inner wall diameter of the connecting ring (22), and the diameter of the fixing plate (24) is greater than the diameter of the half-thread screw (20).

6. A municipal drainage filtration device according to claim 2, characterized in that: The inner wall of the lower mounting ring (14) is fixedly connected to a support frame (16), and the bottom end of the rotating shaft (10) is rotatably connected to the support frame (16).

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