Domestic sewage harmless treatment device
By introducing a servo motor-driven lead screw and filter plate mechanism into the domestic sewage treatment device, the problem of cumbersome removal of sedimented impurities has been solved, achieving convenience and efficiency in sewage treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUAQIAO UNIVERSITY
- Filing Date
- 2025-06-25
- Publication Date
- 2026-04-17
AI Technical Summary
In traditional domestic sewage treatment devices, the process of removing precipitated impurities after chemical precipitation is cumbersome and affects treatment efficiency.
The system employs a filtration mechanism, including a lead screw driven by a servo motor and a filter plate. After chemical precipitation, the servo motor drives the lead screw to rotate, and the filter plate moves up and down in the water storage tank to intercept the sediment and collect the filtered water, simplifying the cleaning operation.
It improves the convenience and efficiency of sewage treatment, simplifies the steps for cleaning sediment, and achieves the harmless treatment of domestic sewage.
Smart Images

Figure CN224132819U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of domestic sewage treatment technology, specifically to a device for harmless treatment of domestic sewage. Background Technology
[0002] There are three ways to remove nitrogen and phosphorus from domestic sewage: biological method, chemical precipitation method, and crystallization method. Among them, chemical precipitation method involves adding chemicals to sewage, which causes phosphorus in the sewage to settle and nitrogen in the sewage to be absorbed.
[0003] Traditional chemical precipitation methods involve a cumbersome and inconvenient process for removing precipitated impurities, which affects wastewater treatment efficiency. To address this, we propose a harmless treatment device for domestic wastewater. Utility Model Content
[0004] The purpose of this invention is to provide a device for the harmless treatment of domestic sewage, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A device for harmless treatment of domestic sewage includes a treatment tank and a water storage tank. The water storage tank is fixedly installed at the bottom of the treatment tank, and a filtration mechanism is installed inside the treatment tank.
[0007] The filtration mechanism includes fixed blocks, lead screws, columns, a top plate, a fixed plate, a servo motor, and a filter plate. Fixed blocks are fixedly installed on both sides of the inner wall of the treatment box. The lead screw passes through and is threadedly connected to the fixed blocks. Columns are fixedly installed at both ends of the top of the treatment box. A top plate is fixedly installed on the top of the columns. A fixed plate is fixedly installed on the top of the top plate. A servo motor is fixedly installed on one side of the fixed plate. The output end of the servo motor is fixedly connected to one end of the lead screw. The other end of the lead screw is rotatably connected to the bottom of the water storage tank through a waterproof sealed bearing. A filter plate is movably installed inside the water storage tank.
[0008] The filter plate has a filter screen fixedly installed on its top and sleeves fixedly installed at both ends of its top.
[0009] The lead screw passes through and is threadedly connected to the sleeve, and an inspection door is provided on one side of the water storage tank.
[0010] The inspection door is fixedly installed on one side of the water storage tank by fixing bolts, and a water pump is fixedly installed on one side of the water storage tank.
[0011] The water pump has a discharge pipe fixedly installed at one end, and an electromagnetic valve is fixedly installed inside the discharge pipe.
[0012] The processing box has an opening on one side and an observation window fixedly installed on the other side.
[0013] The water storage tank is provided with a support leg at its bottom, and the support leg is provided with a support foot at its bottom.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This is a domestic sewage harmless treatment device. Domestic sewage enters the device from the top of the treatment tank, and then chemicals are added to cause chemical sedimentation. After sedimentation, a servo motor starts, and its output drives a lead screw to rotate. The lead screw passes through and is threadedly connected to a fixed block, and is also threadedly connected to a sleeve on the top of the filter plate. As the lead screw rotates, the filter plate moves up and down along the direction of the lead screw within the storage tank. When the filter plate moves upward, the sewage is filtered through the filter screen at the top of the filter plate, and the sediment is trapped above the filter screen. The filtered water then enters the storage tank. After filtration is complete, the impurities on the filter screen are cleaned out through an opening on one side of the treatment tank. Then, the filter plate is lowered to the bottom for the next round of filtration. This design improves the ease of cleaning the device, and the filtration process is simple and convenient to operate.
[0016] This is a domestic sewage harmless treatment device. When the filtered water in the storage tank needs to be discharged, the water pump is turned on, and the solenoid valve in the discharge pipe is opened simultaneously. The filtered water is then discharged through the water pump and the discharge pipe. In addition, the staff can observe the situation inside the treatment tank through the observation window. When it is necessary to clean the inside of the storage tank, the fixing bolts can be loosened and the maintenance door can be opened for operation. The entire device achieves the harmless treatment of domestic sewage through the coordinated work of its various components. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a partial structural diagram of the water storage tank of this utility model;
[0019] Figure 3 This is a partial structural diagram of the filter plate of this utility model;
[0020] Figure 4 This is a schematic diagram of the column and lead screw structure of this utility model.
[0021] In the diagram: 1. Processing tank; 2. Water storage tank; 3. Fixing block; 4. Screw; 5. Column; 6. Top plate; 7. Fixing plate; 8. Servo motor; 9. Filter plate; 10. Filter screen; 11. Sleeve; 12. Inspection door; 13. Fixing bolt; 14. Water pump; 15. Discharge pipe; 16. Opening; 17. Observation window; 18. Support leg; 19. Support foot. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1 - Figure 4 As shown, this utility model provides a technical solution:
[0024] A device for harmless treatment of domestic sewage includes a treatment tank 1 and a water storage tank 2. The water storage tank 2 is fixedly installed at the bottom of the treatment tank 1, and a filtration mechanism is installed inside the treatment tank 1.
[0025] The filtration mechanism includes a fixed block 3, a lead screw 4, a column 5, a top plate 6, a fixed plate 7, a servo motor 8, and a filter plate 9. Fixed blocks 3 are fixedly installed on both sides of the inner wall of the treatment box 1. The lead screw 4 passes through and is threadedly connected to the fixed blocks 3. Columns 5 are fixedly installed at both ends of the top of the treatment box 1. The top plate 6 is fixedly installed on the top of the column 5. The fixed plate 7 is fixedly installed on the top of the top plate 6. The servo motor 8 is fixedly installed on one side of the fixed plate 7. The output end of the servo motor 8 is fixedly connected to one end of the lead screw 4. The other end of the lead screw 4 is rotatably connected to the bottom of the water storage tank 2 through a waterproof sealed bearing. The filter plate 9 is movably installed inside the water storage tank 2.
[0026] Through the above scheme, domestic sewage enters the device from the top of the treatment tank 1, and then chemicals are added to cause chemical sedimentation. After sedimentation, the servo motor 8 starts, and its output drives the lead screw 4 to rotate. Since the lead screw 4 passes through and is threadedly connected to the fixing block 3, and is also threadedly connected to the sleeve 11 at the top of the filter plate 9, the filter plate 9 moves up and down along the direction of the lead screw 4 in the water storage tank 2 when the lead screw 4 rotates. When the filter plate 9 moves upward, the sewage is filtered through the filter screen 10 at the top of the filter plate 9, and the sediment is intercepted above the filter screen 10. The filtered water then enters the water storage tank 2. After filtration is completed, the impurities on the filter screen 10 are cleaned out through the opening 16 on one side of the treatment tank 1, and then the filter plate 9 is manipulated to descend to the bottom for the next round of filtration. Through the above design, the ease of cleaning the device is improved, and the filtration steps are simple and easy to operate.
[0027] The filter plate 9 has a filter screen 10 fixedly installed on its top, and sleeves 11 fixedly installed at both ends of the top of the filter plate 9.
[0028] The lead screw 4 passes through and is threadedly connected to the sleeve 11, and an inspection door 12 is provided on one side of the water storage tank 2.
[0029] The inspection door 12 is fixedly installed on one side of the water storage tank 2 by fixing bolts 13, and a water pump 14 is fixedly installed on one side of the water storage tank 2.
[0030] One end of the water pump 14 is fixedly provided with a discharge pipe 15, and an electromagnetic valve is fixedly provided inside the discharge pipe 15.
[0031] The processing box 1 has an opening 16 on one side and an observation window 17 fixedly installed on the other side.
[0032] Among them, the bottom of the water storage tank 2 is fixedly provided with a support leg 18, and the bottom of the support leg 18 is fixedly provided with a support foot 19.
[0033] With the above scheme, when the filtered water in the water storage tank 2 needs to be discharged, the water pump 14 is turned on, and at the same time, the solenoid valve in the discharge pipe 15 is opened, and the filtered water is discharged through the water pump 14 and the discharge pipe 15. In addition, the staff can observe the situation inside the treatment tank 1 through the observation window 17. When it is necessary to clean the inside of the water storage tank 2, the fixing bolts 13 can be loosened and the inspection door 12 can be opened for operation. The entire device achieves the harmless treatment of domestic sewage through the coordinated work of its various components.
[0034] In this embodiment, a domestic sewage harmless treatment device is used. Domestic sewage enters the device from the top of the treatment tank 1, and then a chemical agent is added to cause chemical sedimentation. After sedimentation, the servo motor 8 is started, and its output end drives the lead screw 4 to rotate. Since the lead screw 4 passes through and is threadedly connected to the fixing block 3, and is also threadedly connected to the sleeve 11 at the top of the filter plate 9, the filter plate 9 moves up and down along the direction of the lead screw 4 in the water storage tank 2 when the lead screw 4 rotates. When the filter plate 9 moves upward, the sewage is filtered through the filter screen 10 at the top of the filter plate 9. The sediment is intercepted above the filter screen 10, and the filtered water enters the water storage tank 2. After filtration, impurities on the filter screen 10 are cleaned out through the opening 16 on one side of the treatment tank 1. Then, the filter plate 9 is lowered to the bottom for the next round of filtration. This design improves the ease of cleaning the device, and the filtration process is simple and easy to operate. When the filtered water in the storage tank 2 needs to be discharged, the water pump 14 is turned on, and the solenoid valve in the discharge pipe 15 is opened simultaneously. The filtered water is then discharged through the water pump 14 and the discharge pipe 15. In addition, staff can observe the condition inside the treatment tank 1 through the observation window 17. When it is necessary to clean the inside of the storage tank 2, the fixing bolts 13 can be loosened and the inspection door 12 can be opened. The entire device achieves the harmless treatment of domestic sewage through the coordinated work of its components.
[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A harmless treatment device for domestic sewage, comprising a treatment tank (1) and a water storage tank (2), characterized in that: The water storage tank (2) is fixedly installed at the bottom of the treatment tank (1), and the treatment tank (1) is equipped with a filtration mechanism inside; The filtration mechanism includes a fixed block (3), a lead screw (4), a column (5), a top plate (6), a fixed plate (7), a servo motor (8), and a filter plate (9). The inner walls of the processing box (1) are fixedly provided with fixed blocks (3). The lead screw (4) passes through and is threadedly connected to the fixed blocks (3). The top two ends of the processing box (1) are fixedly provided with columns (5). The top of the columns (5) is fixedly provided with a top plate (6). The top of the top plate (6) is fixedly provided with a fixed plate (7). The fixed plate (8) is fixedly provided on one side of the fixed plate (7). The output end of the servo motor (8) is fixedly connected to one end of the lead screw (4). The other end of the lead screw (4) is rotatably connected to the bottom of the water storage tank (2) through a waterproof sealed bearing. The filter plate (9) is movably provided inside the water storage tank (2).
2. The device for harmless treatment of domestic sewage according to claim 1, characterized in that: A filter screen (10) is fixedly installed on the top of the filter plate (9), and sleeves (11) are fixedly installed at both ends of the top of the filter plate (9).
3. The device for harmless treatment of domestic sewage according to claim 2, characterized in that: The lead screw (4) passes through and is threadedly connected to the sleeve (11), and an inspection door (12) is provided on one side of the water storage tank (2).
4. The device for harmless treatment of domestic sewage according to claim 3, characterized in that: The inspection door (12) is fixedly installed on one side of the water storage tank (2) by fixing bolts (13), and a water pump (14) is fixedly installed on one side of the water storage tank (2).
5. The domestic sewage harmless treatment device according to claim 4, characterized in that: One end of the water pump (14) is fixedly provided with a discharge pipe (15), and an electromagnetic valve is fixedly provided inside the discharge pipe (15).
6. The device for the harmless treatment of domestic sewage according to claim 5, characterized in that An opening (16) is provided on one side of the processing box (1), and an observation window (17) is fixedly provided on the other side of the processing box (1).
7. The device for the harmless treatment of domestic sewage according to claim 6, characterized in that The bottom of the water tank (2) is fixedly provided with a support leg (18), and the bottom of the support leg (18) is fixedly provided with a support foot (19).