Multi-stage screening type rural sewage treatment device

Abstract

The utility model relates to the technical field of environmental governance, and discloses a multistage screening type rural sewage treatment device which comprises a bottom plate, two vertical plates are fixedly connected to the upper surface of the bottom plate, rotating rods are rotationally connected to the opposite side faces of the two vertical plates, and the rotating rods are connected with the bottom plate. A treatment box is fixedly connected between the two rotating rods, a feeding opening is formed in the top of the treatment box, two discharging pipes communicate with the bottom of the treatment box, a filter plate is movably installed on one side wall of the interior of the treatment box, and two fixing plates are fixedly connected to one side wall of the interior of the treatment box; when the device is used, large impurities in sewage can be screened in a vibrating mode, meanwhile, the large impurities can be further screened through centrifugal force generated by rotation of a filter cylinder, the effect is better, and the filter plate and the filter cylinder can be conveniently and rapidly cleaned.

Description

Technical Field

[0001] This utility model relates to the field of environmental governance technology, specifically a multi-stage screening type rural sewage treatment device. Background Technology

[0002] Wastewater refers to water discharged from domestic and industrial processes that has been polluted to a certain extent and has lost its original function. It is mainly water used in daily life, which contains a lot of organic matter and is difficult to treat. In addition, rural wastewater contains a large amount of water-insoluble solid waste, so wastewater treatment equipment is needed to treat it.

[0003] A multi-stage screening-type rural sewage treatment device, disclosed in publication number CN 217340470 U, includes a base plate and a sewage treatment tank mounted on top of the base plate. A top plate is located at the top opening of the sewage treatment tank, and a servo motor is mounted on the top of the top plate. An inlet is located on the side of the servo motor. A second treatment chamber is located inside the sewage treatment tank, and a rotating filter mechanism connected to the output end of the servo motor is located inside the second treatment chamber. A first filter screen is connected to the top of the second treatment chamber via a vibration connection mechanism, with one end of the first filter screen extending to the outside of the sewage treatment tank. The rotating filter mechanism includes a rotating roller, a second filter mechanism, and a rotating scraping mechanism. This multi-stage screening-type rural sewage treatment device, through the cooperation of the rotating filter mechanism and the internal parts of the vibration connection mechanism, can perform multiple screening and filtration processes on impurities in the sewage, improving the sewage treatment efficiency.

[0004] However, the above-mentioned device still has some shortcomings in use. It only uses a filter screen for vibration screening, and the sewage stays on the filter screen for a short time, which cannot effectively filter the sewage. At the same time, it is not easy to clean the filter screen, which can easily cause blockage and affect subsequent use. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a multi-stage screening type rural sewage treatment device, which solves the problems of sewage not being effectively filtered due to short residence time on the filter screen when screening by vibration alone, and the filter screen being inconvenient to clean, easily causing blockage and affecting subsequent use.

[0006] This utility model provides the following technical solution: a multi-stage screening type rural sewage treatment device, including a base plate, two vertical plates fixedly connected to the upper surface of the base plate, rotating rods rotatably connected to the opposite sides of the two vertical plates, a treatment box fixedly connected between the two rotating rods, a feed inlet at the top of the treatment box, two discharge pipes connected to the bottom of the treatment box, a filter plate movably installed on one side wall of the treatment box, two fixed plates fixedly connected to one side wall of the treatment box, movable grooves on the surfaces of the two fixed plates, connecting rods slidably fitted inside the two movable grooves, the two connecting rods movably connected to the lower surface of the filter plate, springs fitted on the surfaces of the two connecting rods, a connecting plate fixedly connected between the bottom ends of the two connecting rods, a short rod rotatably connected to one side wall of the treatment box, a cam fixedly connected to one end of the short rod, a rotating rod rotatably connected to the bottom wall of the treatment box, and a filter cylinder fixedly connected to the top end of the rotating rod.

[0007] Preferred technical solution 1: A short plate is fixedly connected to the lower surface of the processing box, and a long rod is rotatably connected to the short plate. One end of the short rod extends to the outside of the processing box and is fixedly sleeved with a drive sprocket. One end of the long rod is fixedly sleeved with a driven sprocket. A chain drives between the drive sprocket and the driven sprocket. One end of the long rod extends to the other side of the short plate and is fixedly sleeved with a first bevel gear. The bottom end of the rotating rod extends to the outside of the processing box and is fixedly sleeved with a second bevel gear. The first bevel gear and the second bevel gear mesh with each other.

[0008] Preferred technical solution 2: A first motor is fixedly connected to the surface of the processing box, and the output end of the first motor is fixedly connected to the short rod.

[0009] Preferred technical solution three: A second motor is fixedly connected to the side of one of the vertical plates, and the output end of the second motor passes through the connected vertical plate and is fixedly connected to the rotating rod.

[0010] Preferred technical solution four: A sealing gasket is fixedly fitted at one end of the filter plate, and the sealing gasket is made of elastic rubber.

[0011] Preferred technical solution five: A collection box is fixedly connected to one side of the processing box, the collection box is connected to the processing box, and the waste on the filter plate can be collected inside the processing box.

[0012] Compared with existing technologies, this utility model provides a multi-stage screening type rural sewage treatment device with the following beneficial effects: In use, the sewage to be filtered is fed into the treatment tank through the inlet. The wastewater undergoes preliminary filtration through the filter plates, removing larger debris and impurities. The pre-filtered sewage then falls into the filter cylinder. During filtration, the rotation of the first motor drives the short rod to rotate, which in turn causes the cam to continuously strike the connecting plate. This causes the connecting plate, along with the connecting rod and one end of the filter plate, to vibrate up and down repeatedly, enhancing the filtration effect on debris in the sewage. Simultaneously, the debris falls and is collected in the collection box. Inside the filter, the rotation of the first motor and the chain drive simultaneously rotate the long rod, which in turn drives the first and second bevel gears, causing the filter cartridge to rotate. Centrifugal force is used to filter out smaller impurities from the wastewater. The wastewater after secondary filtration is discharged through the discharge pipe for further treatment. When it is necessary to clean the filter cartridge and filter plates, the rotation of the second motor drives the rotating rod, which in turn rotates the treatment box, positioning the discharge pipe at the top. Then, cleaning water is added through the discharge pipe to backwash the filter cartridge and filter plates, allowing small particles of impurities inside the filter cartridge to be discharged through the filter plates from the feed inlet, which is convenient and quick. Attached Figure Description

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 This is a cross-sectional view of the internal structure of the processing box of this utility model;

[0015] Figure 3 For the utility model Figure 2 Enlarged view of the structure of A in the middle;

[0016] Figure 4 This is a bottom view of the bottom structure of this utility model.

[0017] In the diagram: 1. Base plate; 2. Vertical plate; 3. Rotating rod; 4. Processing box; 5. Filter plate; 6. Fixed plate; 7. Movable groove; 8. Connecting rod; 9. Spring; 10. Connecting plate; 11. Short rod; 12. Cam; 13. Rotating rod; 14. Filter cartridge; 15. Short plate; 16. Long rod; 17. Driving sprocket; 18. Driven sprocket; 19. Chain; 20. First bevel gear; 21. Second bevel gear; 22. First motor; 23. Second motor; 24. Sealing gasket; 25. Collection box. Detailed Implementation

[0018] Please see Figure 1-4 ,

[0019] Example 1: A multi-stage screening type rural sewage treatment device includes a base plate 1. Two vertical plates 2 are fixedly connected to the upper surface of the base plate 1. Rotating rods 3 are rotatably connected to the opposite sides of the two vertical plates 2. A treatment box 4 is fixedly connected between the two rotating rods 3. A feed inlet is opened at the top of the treatment box 4. Two discharge pipes are connected to the bottom of the treatment box 4. A filter plate 5 is movably installed on one side wall of the treatment box 4. Two fixed plates 6 are fixedly connected to one side wall of the treatment box 4. Movable grooves 7 are opened on the surface of the two fixed plates 6. Connecting rods 8 are slidably sleeved inside the two movable grooves 7. The two connecting rods 8 are movably connected to the lower surface of the filter plate 5. Springs 9 are sleeved on the surface of the two connecting rods 8. A connecting plate 10 is fixedly connected between the bottom ends of the two connecting rods 8. A short rod 11 is rotatably connected to one side wall of the treatment box 4. A cam 12 is fixedly connected to one end of the short rod 11. A rotating rod 13 is rotatably connected to the bottom wall of the treatment box 4. A filter cylinder 14 is fixedly connected to the top end of the rotating rod 13.

[0020] Example 2: The difference between this example and Example 1 is that a short plate 15 is fixedly connected to the lower surface of the treatment box 4, and a long rod 16 is rotatably connected to the short plate 15. One end of the short rod 11 extends to the outside of the treatment box 4 and is fixedly sleeved with a drive sprocket 17. One end of the long rod 16 is fixedly sleeved with a driven sprocket 18. A chain 19 is connected between the drive sprocket 17 and the driven sprocket 18. One end of the long rod 16 extends to the other side of the short plate 15 and is fixedly sleeved with a first bevel gear 20. The bottom end of the rotating rod 13 extends to the outside of the treatment box 4 and is fixedly sleeved with a second bevel gear 21. The first bevel gear 20 and the second bevel gear 21 mesh with each other, causing the filter plate 5 to vibrate and the filter cylinder 14 to rotate, thereby improving the filtration effect of sewage.

[0021] Example 3: The difference between this example and Example 1 is that a first motor 22 is fixedly connected to the surface of the processing box 4, and the output end of the first motor 22 is fixedly connected to the short rod 11. The operation of the first motor 22 provides power for the vibration of the filter plate 5 and the rotation of the filter cylinder 14.

[0022] Example 4: The difference between this example and Example 1 is that a second motor 23 is fixedly connected to the side of one of the vertical plates 2. The output end of the second motor 23 passes through the connected vertical plate 2 and is fixedly connected to the rotating rod 3. The rotation of the second motor 23 drives the processing box 4 to flip, which facilitates backwashing of the filter plate 5 and filter cartridge 14 inside, making it easier to clean.

[0023] Example 5: The difference between this example and Example 1 is that a sealing gasket 24 is fixedly fitted on one end of the filter plate 5. The sealing gasket 24 is made of elastic rubber to prevent leakage during the vibration of the filter plate 5.

[0024] Example 6: The difference between this example and Example 1 is that a collection box 25 is fixedly connected to one side of the processing box 4. The collection box 25 is connected to the processing box 4, and the garbage on the filter plate 5 can be collected inside the processing box 4, which facilitates the collection of garbage on the filter plate 5 and makes it easier for subsequent unified processing.

[0025] In summary, this multi-stage screening rural sewage treatment device, during use, feeds the sewage to be filtered into the treatment tank 4 through the inlet. The sewage then undergoes preliminary filtration through the filter plate 5, removing larger debris and impurities. The pre-filtered sewage then falls into the filter cylinder 14. During filtration, the rotation of the first motor 22 drives the short rod 11 to rotate, which in turn causes the cam 12 to continuously strike the connecting plate 10. This causes the connecting plate 10 to vibrate the connecting rod 8 and one end of the filter plate 5 repeatedly, enhancing the filtration effect on debris in the sewage. Simultaneously, the debris falls and is collected inside the collection box 25. The first motor 22... The rotation of the motor and the transmission of the chain 19 drive the long rod 16 to rotate, which in turn drives the first bevel gear 20 and the second bevel gear 21 to rotate, thus driving the filter cylinder 14 to rotate. Through centrifugal force, smaller impurities in the wastewater are filtered out. The wastewater after secondary filtration is discharged through the discharge pipe for further treatment. When it is necessary to clean the filter cylinder 14 and the filter plate 5, the rotation of the second motor 23 drives the rotating rod 3 to rotate, which in turn drives the treatment box 4 to rotate, so that the discharge pipe is at the top. Then, cleaning water is poured in through the discharge pipe to backwash the filter cylinder 14 and the filter plate 5, so that the small particles of impurities inside the filter cylinder 14 are discharged through the filter plate 5 from the feed port, which is convenient and quick.

Claims

1. A multi-stage screening type rural sewage treatment device, comprising a base plate (1), characterized in that: Two vertical plates (2) are fixedly connected to the upper surface of the base plate (1). Rotating rods (3) are rotatably connected to the opposite sides of the two vertical plates (2). A processing box (4) is fixedly connected between the two rotating rods (3). A feed inlet is provided at the top of the processing box (4). Two discharge pipes are connected to the bottom of the processing box (4). A filter plate (5) is movably installed on one side wall of the processing box (4). Two fixed plates (6) are fixedly connected to one side wall of the processing box (4). Movable grooves (7) are provided on the surface of the two fixed plates (6). (7) is slidably fitted with connecting rods (8) inside. Both connecting rods (8) are movably connected to the lower surface of the filter plate (5). Both connecting rods (8) are fitted with springs (9). A connecting plate (10) is fixedly connected between the bottom ends of the two connecting rods (8). A short rod (11) is rotatably connected to one side wall of the inside of the treatment box (4). A cam (12) is fixedly connected to one end of the short rod (11). A rotating rod (13) is rotatably connected to the bottom wall of the inside of the treatment box (4). A filter cylinder (14) is fixedly connected to the top end of the rotating rod (13).

2. The multi-stage screening type rural sewage treatment device according to claim 1, characterized in that: A short plate (15) is fixedly connected to the lower surface of the processing box (4). A long rod (16) is rotatably connected to the short plate (15). One end of the short rod (11) extends to the outside of the processing box (4) and is fixedly sleeved with a drive sprocket (17). One end of the long rod (16) is fixedly sleeved with a driven sprocket (18). A chain (19) is connected between the drive sprocket (17) and the driven sprocket (18). One end of the long rod (16) extends to the other side of the short plate (15) and is fixedly sleeved with a first bevel gear (20). The bottom end of the rotating rod (13) extends to the outside of the processing box (4) and is fixedly sleeved with a second bevel gear (21). The first bevel gear (20) and the second bevel gear (21) mesh with each other.

3. The multi-stage screening type rural sewage treatment device according to claim 1, characterized in that: A first motor (22) is fixedly connected to the surface of the processing box (4), and the output end of the first motor (22) is fixedly connected to the short rod (11).

4. The multi-stage screening type rural sewage treatment device according to claim 1, characterized in that: A second motor (23) is fixedly connected to the side of one of the vertical plates (2). The output end of the second motor (23) passes through the connected vertical plate (2) and is fixedly connected to the rotating rod (3).

5. The multi-stage screening type rural sewage treatment device according to claim 1, characterized in that: One end of the filter plate (5) is fixedly fitted with a sealing gasket (24), which is made of elastic rubber.

6. The multi-stage screening type rural sewage treatment device according to claim 1, characterized in that: A collection box (25) is fixedly connected to one side of the processing box (4). The collection box (25) is connected to the processing box (4), and the garbage on the filter plate (5) can be collected inside the processing box (4).

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