Automatic cleaning device for sewage treatment sampling pool

By designing an automatic cleaning device that combines a cylindrical sampling pool and a rotating assembly with cleaning brush rollers and brush plates, the problem of cleaning dead corners in sewage treatment sampling pools has been solved, achieving efficient cleaning and spraying effects without dead corners and improving cleaning efficiency.

CN223505825UActive Publication Date: 2025-11-04亳州市谯城区魏岗镇综合行政执法队
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Patent Information

Application Number
CN202422855770.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2025-11-04
Estimated Expiration
2034-11-22

AI Technical Summary

Technical Problem

Existing wastewater treatment sampling tanks have cleaning dead spots, especially the four corners, which cannot be effectively cleaned and have low cleaning efficiency, requiring manual spraying and rinsing, which is inconvenient to operate.

Method used

An automatic cleaning device for sewage treatment sampling pools is designed. It adopts a cylindrical structure and combines a cleaning brush roller and a brush plate. The cleaning brush roller and brush plate are driven by a rotating component to clean the inner wall. At the same time, a water supply component is used to spray water to ensure cleaning without dead corners.

Benefits of technology

It achieves comprehensive cleaning of the inner wall and bottom of the sampling pool, avoids cleaning dead corners, improves cleaning efficiency, reduces manual operation, and enhances cleaning effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of sewage treatment, and particularly relates to an automatic cleaning device for a sewage treatment sampling pool, which comprises a sampling pool, a rotating assembly is arranged at the top end of a transverse plate, the rotating assembly comprises a worm, a motor, a connecting rod, a worm gear, a driven wheel, a driving wheel and a main rod, and the connecting rod is rotatably arranged at the center of the transverse plate in a penetrating manner. The outer side of the top end of the connecting rod is sleeved with a worm gear and fixedly connected with the connecting rod, one side of the worm gear is in meshed connection with a worm, two sets of driving wheels are fixedly arranged at the bottom end of the connecting rod, the bottom ends of the driving wheels are connected with the center of the top end of the cross-shaped mounting frame, the main rod is connected with a cleaning brush plate, and driven wheels are connected with a splicing assembly. The splicing assembly is connected with a cleaning brush roller, the connecting rod is connected with a water supply assembly, and the water supply assembly is connected with a spray pipe, so that the problems that the four corners of the sampling pool cannot be effectively cleaned, cleaning dead corners exist, meanwhile, a user needs to hold a water pipe to spray to wash away brushed impurities, and the cleaning efficiency is low are solved.
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Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology, specifically relating to an automatic cleaning device for wastewater treatment sampling tanks. Background Technology

[0002] Wastewater treatment sampling tanks are devices used to obtain samples from the wastewater treatment process for monitoring and analysis. They are specially designed containers or tanks used to collect wastewater samples generated during the treatment process. After one sampling is completed in the wastewater treatment sampling tank, it is usually necessary to clean and tidy the sampling tank before the next sampling and testing to ensure the accuracy and representativeness of the next sampling.

[0003] Announcement No. CN219851220U discloses an automatic cleaning device for sewage treatment sampling tanks. The device includes a first support plate, with a hydraulic rod fixedly connected to the top center of the first support plate. A third support plate is fixedly connected to the bottom surface of the first support plate, and a motor is fixedly connected to one side of the top surface of the third support plate. A rotating shaft is fixedly connected to the output end of the motor. A bottom plate brush is fixedly connected to the bottom surface of a fixed disc, and a rotating brush is provided on the outer wall of the rotating shaft. In this invention, the driving motor can rotate the rotating brush and the bottom plate brush to clean the inner wall and bottom plate of the sampling tank. Driving an electric slider can move the cleaning device inside the sampling tank for thorough cleaning of the inner wall, thereby reducing the workload and labor intensity of workers.

[0004] The problems with the above-mentioned patent are as follows: the sampling pool is rectangular, which has cleaning dead corners. Rotating the brush cannot effectively clean the four corners of the sampling pool, which easily leads to incomplete cleaning. In addition, cleaning the inner wall of the pool by brushing alone requires manual operation of the water pipe spray to rinse off the impurities brushed off, which is inefficient and inconvenient to operate. Utility Model Content

[0005] To address the above problems, the purpose of this utility model is to provide an automatic cleaning device for sewage treatment sampling pools, which solves the problems of ineffective cleaning of the four corners of the sampling pool, the existence of cleaning dead corners, and the need to use a handheld water hose to spray and rinse off the impurities, resulting in low cleaning efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an automatic cleaning device for a sewage treatment sampling tank, comprising a sampling tank, a fixed frame fitted around the outer side of the sampling tank and fixedly connected thereto, hydraulic rods fixedly mounted at their top ends on opposite sides of the fixed frame, one end of each hydraulic rod connected to the lower ends of a horizontal plate, a rotating assembly mounted at the top end of the horizontal plate, the rotating assembly comprising a worm gear, a motor, a connecting rod, a worm wheel, a driven wheel, a driving wheel, and a main rod, a connecting rod rotatably mounted through the center of the horizontal plate, and a worm wheel fitted around the top end of the connecting rod and fixedly connected thereto. One side of the worm gear is meshed with a worm, one end of the worm is connected to a motor, the motor is connected to one side of the horizontal plate, two sets of driving wheels are fixed at the bottom of the connecting rod, the bottom of the driving wheels are connected to the center of the top of the cross mounting frame, the center of the bottom of the cross mounting frame is fixed with a main rod, the main rod is connected to the cleaning brush plate, the driven wheel is connected to the splicing assembly, and the splicing assembly is set at one set of opposite ends of the cross mounting frame, the splicing assembly is connected to the cleaning brush roller, the connecting rod is connected to the water supply assembly, and the water supply assembly is connected to the spray pipe, the spray pipe is set at the other set of opposite ends of the cross mounting frame.

[0007] The beneficial effects of this utility model are:

[0008] The sampling pool of this device is designed in a cylindrical shape, and the cleaning brush roller cleans the inner wall of the sampling pool, while the cleaning brush plate cleans the bottom of the sampling pool. This eliminates cleaning dead corners. At the same time, the water supply component injects water into the spray pipe as the rotating component rotates, spraying water onto the inner wall of the sampling pool to enhance the cleaning effect.

[0009] In order to clean the inner wall of the sampling pool:

[0010] As a further improvement to the above technical solution: a set of opposite ends of the cross mounting frame are each rotatably mounted with a rotating rod, and a driven wheel is sleeved on the outside of each rotating rod and fixedly connected to it. A transmission belt is sleeved on the outside of the driven wheel and driven by it, and one end of the transmission belt is sleeved on the outside of the driving wheel and connected to it. The two sets of driving wheels are arranged vertically, and the driving wheel at the bottom is fixedly connected to the top center of the cross mounting frame.

[0011] The beneficial effects of this improvement are as follows: When the sampling pool needs to be cleaned, the hydraulic rod can be activated by the controller to move the horizontal plate downwards, so that the cleaning brush roller moves into the sampling pool. At this time, the cleaning brush roller is in contact with the inner wall of the sampling pool. Then, the drive motor is connected to the worm gear, which causes the worm wheel meshing with it to rotate. The rotating worm wheel causes the drive wheel to rotate, and the transmission belt causes the drive wheel to rotate accordingly. The rotating drive wheel drives the cleaning brush roller to rotate around the driven wheel as the axis through the splicing assembly. At the same time, the rotating connecting rod causes the cross mounting bracket to rotate around the main rod as the axis. The cleaning brush roller can then begin to clean the inner wall of the sampling pool.

[0012] In order to spray the inner wall of the sampling pool:

[0013] As a further improvement to the above technical solution: the water supply component consists of a rotary joint, a connecting pipe, and a spray pipe. The interior of the connecting rod is hollow, and both ends of the connecting rod are connected to one end of the connecting pipe. The other end of the connecting pipe passes through the other two ends of the cross mounting bracket and is fixedly connected to it. The other end of the connecting pipe is connected to the spray pipe. The top end of the spray pipe is connected to the cross mounting bracket. The top end of the connecting rod is rotatably connected to one end of the rotary joint. The other end of the rotary joint is fixedly equipped with an elbow. The elbow is connected to a support plate, and the support plate is fixed above the horizontal plate.

[0014] The beneficial effects of this improvement are as follows: Before using this device, the external water supply pipe is connected to the elbow. When the cleaning brush roller is cleaning the inner wall of the sampling pool, the water is injected through the external water source, and the water flows into the connecting pipe through the connecting rod. Then, the water is sprayed out by the spray pipe, thereby spraying the inner wall of the sampling pool and increasing the cleaning effect.

[0015] To complete the disassembly and installation of the cleaning brush plate:

[0016] As a further improvement to the above technical solution: a limiting plate is fixedly provided at the bottom end of the main rod, and a bolt is connected through both ends of the limiting plate. The bolt is fixed at the top of the cleaning brush plate and is threadedly connected to a nut.

[0017] The beneficial effects of this improvement are as follows: when the main rod rotates, the cleaning brush plate can clean the bottom of the sampling pool. When it is necessary to disassemble and maintain the cleaning brush plate, the cleaning brush plate can be pulled down by rotating the nut to disengage it from the bolt, thereby completing the disassembly of the cleaning brush plate. Similarly, the cleaning brush plate can be installed by reversing the operation.

[0018] To complete the disassembly and installation of the cleaning brush roller:

[0019] As a further improvement to the above technical solution: the splicing assembly consists of a connecting plate and two bolts. Two bolts are fixedly provided on both sides of the top of the cleaning brush roller, and the two bolts pass through the two opposite ends of the connecting plate and are slidably connected to it. The connecting plate is fixedly connected to the bottom end of the rotating rod, and the outer thread of the two bolts is connected to a nut.

[0020] The beneficial effects of this improvement are as follows: when it is necessary to disassemble and maintain the cleaning brush roller, the cleaning brush roller can be pulled down by rotating nut two to disengage it from bolt two, thereby completing the disassembly of the cleaning brush roller. Similarly, the cleaning brush roller can be installed by reversing the operation.

[0021] In order to discharge the sewage:

[0022] As a further improvement to the above technical solution: a drain pipe is fixedly installed through the bottom eccentric part of the sampling pool, and the drain pipe is connected to a drain valve, which is fixedly installed at the bottom of the sampling pool.

[0023] The beneficial effect of this improvement is that it allows for the discharge of wastewater.

[0024] In order to unify the control of this device:

[0025] As a further improvement to the above technical solution: a controller is fixedly mounted on the front side of the fixed frame, and the controller consists of a microcontroller, a relay, and a control switch assembly, and the controller is electrically connected to a hydraulic rod, a motor, and a drain valve.

[0026] The beneficial effect of this improvement is that it enables unified control of the device.

[0027] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the rotating component structure of this utility model;

[0030] Figure 3 This is an enlarged structural diagram of part A of this utility model;

[0031] Figure 4 This is an enlarged structural diagram of part B of the present invention;

[0032] In the diagram: 1. Sampling pool; 2. Fixing frame; 3. Hydraulic rod; 4. Horizontal plate; 5. Cross mounting bracket; 6. Cleaning brush roller; 7. Rotating assembly; 701. Worm gear; 702. Motor; 703. Connecting rod; 704. Worm wheel; 705. Driven wheel; 706. Driving wheel; 707. Main rod; 8. Cleaning brush plate; 9. Splicing assembly; 901. Connecting plate; 902. Bolt 2; 10. Limiting plate; 11. Bolt 1; 12. Rotary joint; 13. Connecting pipe; 14. Spray pipe. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0034] like Figure 1-4 As shown, an automatic cleaning device for a wastewater treatment sampling tank includes a sampling tank 1. A fixing frame 2 is fitted around the outside of the sampling tank 1 and fixedly connected thereto. Hydraulic rods 3 are fixedly mounted at the top of opposite sides of the fixing frame 2. One end of each hydraulic rod 3 is connected to the lower ends of a horizontal plate 4. A rotating assembly 7 is mounted at the top of the horizontal plate 4. The rotating assembly 7 consists of a worm gear 701, a motor 702, a connecting rod 703, a worm wheel 704, a driven wheel 705, a driving wheel 706, and a main rod 707. A connecting rod 703 is rotatably mounted through the center of the horizontal plate 4, and a worm wheel 704 is fitted around the top of the connecting rod 703 and fixedly connected thereto. One side of the worm wheel 704 is engaged with... A worm gear 701 is connected to a motor 702 at one end, and the motor 702 is connected to one side of the horizontal plate 4. Two sets of drive wheels 706 are fixed at the bottom end of the connecting rod 703. The bottom end of the drive wheels 706 is connected to the center of the top of the cross mounting frame 5. A main rod 707 is fixed at the center of the bottom end of the cross mounting frame 5. The main rod 707 is connected to the cleaning brush plate 8. The driven wheel 705 is connected to the splicing assembly 9, and the splicing assembly 9 is set at one set of opposite ends of the cross mounting frame 5. The splicing assembly 9 is connected to the cleaning brush roller 6. The connecting rod 703 is connected to the water supply assembly, and the water supply assembly is connected to the spray pipe 14. The spray pipe 14 is set at the other set of opposite ends of the cross mounting frame 5.

[0035] A set of rotating rods are rotatably mounted through both ends of the cross mounting bracket 5, and driven wheels 705 are fitted on the outer side of each rotating rod and fixedly connected to them. A transmission belt is fitted on the outer side of each driven wheel 705, and one end of the transmission belt is fitted on the outer side of the driving wheel 706 and connected to it. Two sets of driving wheels 706 are arranged vertically, and the driving wheel 706 at the bottom is fixedly connected to the center of the top of the cross mounting bracket 5. When it is necessary to clean the sampling pool 1, the hydraulic rod 3 can be activated by the controller to drive the horizontal plate 4 downward, so that the cleaning brush roller 6 moves to... Inside the sampling pool 1, the cleaning brush roller 6 is in contact with the inner wall of the sampling pool 1. Then, the drive motor 702, which is connected to the worm gear 701, causes the worm wheel 704, which is meshed with it, to rotate. The rotating worm wheel 704 causes the drive wheel 706 to rotate, and the transmission belt causes the drive wheel 706 to rotate accordingly. The rotating drive wheel 706 drives the cleaning brush roller 6 to rotate around the driven wheel 705 through the splicing assembly 9. At the same time, the rotating connecting rod 703 causes the cross mounting bracket 5 to rotate around the main rod 707. The cleaning brush roller 6 can then begin to clean the inner wall of the sampling pool 1.

[0036] The water supply assembly consists of a rotary joint 12, a connecting pipe 13, and a spray pipe 14. The connecting rod 703 has a hollow interior, and both ends of the connecting rod 703 are connected to one end of the connecting pipe 13. The other end of the connecting pipe 13 passes through the other two ends of the cross mounting bracket 5 and is fixedly connected to it. The other end of the connecting pipe 13 is connected to the spray pipe 14. The top end of the spray pipe 14 is connected to the cross mounting bracket 5. The top end of the connecting rod 703 is rotatably connected to one end of the rotary joint 12. The other end of the rotary joint 12 is fixedly equipped with an elbow. The elbow is connected to a support plate, and the support plate is fixed above the horizontal plate 4. Before using this device, the external water supply pipe is connected to the elbow. When the cleaning brush roller 6 is cleaning the inner wall of the sampling pool 1, the water is injected through the external water source, flows through the connecting rod 703 into the connecting pipe 13, and then sprays the water out through the spray pipe 14, thereby spraying the inner wall of the sampling pool 1 and increasing the cleaning effect.

[0037] A limiting plate 10 is fixedly provided at the bottom end of the main rod 707, and bolts 11 are connected through both ends of the limiting plate 10. Bolts 11 are fixed at the top opposite positions of the cleaning brush plate 8, and bolts 11 are threadedly connected to nuts. When the main rod 707 rotates, the cleaning brush plate 8 can clean the bottom of the sampling pool 1. When it is necessary to disassemble and maintain the cleaning brush plate 8, the cleaning brush plate 8 can be pulled down by rotating nuts to disengage it from bolts 11, thereby completing the disassembly of the cleaning brush plate 8. Similarly, the cleaning brush plate 8 can be installed by reversing the operation.

[0038] The splicing assembly 9 consists of a connecting plate 901 and bolts 902. Bolts 902 are fixedly installed on both sides of the top of the cleaning brush roller 6, and bolts 902 pass through the two opposite ends of the connecting plate 901 and are slidably connected to it. The connecting plate 901 is fixedly connected to the bottom end of the rotating rod, and the outer side of the bolts 902 is threaded with nuts. When it is necessary to disassemble and maintain the cleaning brush roller 6, the cleaning brush roller 6 can be pulled down by rotating the nuts to disengage them from the bolts 902, thereby completing the disassembly of the cleaning brush roller 6. Similarly, the cleaning brush roller 6 can be installed by reversing the operation.

[0039] A sewage pipe is fixedly installed at the bottom eccentric part of the sampling pool 1, and the sewage pipe is connected to a sewage valve, which is fixed at the bottom of the sampling pool 1; sewage can be discharged by opening the sewage valve.

[0040] The front side of the fixed frame 2 is fixed with a controller, which consists of a microcontroller, a relay, and a control switch assembly. The controller is electrically connected to the hydraulic rod 3, the motor 702, and the drain valve.

[0041] The working principle and usage process of this utility model are as follows: Before using this device, connect the external water supply pipe to the elbow. When it is necessary to clean the sampling pool 1, the hydraulic rod 3 can be activated by the controller to move the horizontal plate 4 downward, so that the cleaning brush roller 6 moves into the sampling pool 1. At this time, the cleaning brush roller 6 is in contact with the inner wall of the sampling pool 1. Then, the drive motor 702, which is connected to the worm gear 701, causes the worm wheel 704 meshing with it to rotate. The rotating worm wheel 704 causes the drive wheel 706 to rotate, and the transmission belt causes the drive wheel 706 to rotate accordingly. The rotating drive wheel 706 drives the cleaning brush roller 6 to rotate around the driven wheel 705 through the splicing assembly 9. At the same time, the rotating connecting rod 703 causes the cross mounting bracket 5 to rotate around the main rod 707. The cleaning brush roller 6 can then begin to clean the inner wall of the sampling pool 1. When the cleaning brush roller 6 is cleaning the sampling pool 1... During the cleaning of the inner wall, water is injected from an external water source and flows through the connecting rod 703 into the connecting pipe 13. Then, the water is sprayed out by the spray pipe 14 to spray the inner wall of the sampling pool 1, thereby increasing the cleaning effect. When the main rod 707 rotates, the cleaning brush plate 8 can clean the bottom of the sampling pool 1. The sewage can be discharged by opening the drain valve. When the cleaning brush plate 8 needs to be disassembled for maintenance, it can be pulled down by turning nut one to disengage bolt one 11, thereby completing the disassembly of the cleaning brush plate 8. Similarly, the cleaning brush plate 8 can be installed by reversing the operation. When the cleaning brush roller 6 needs to be disassembled for maintenance, it can be pulled down by turning nut two to disengage bolt two 902, thereby completing the disassembly of the cleaning brush roller 6. Similarly, the cleaning brush roller 6 can be installed by reversing the operation.

[0042] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of this utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. An automatic cleaning device for a wastewater treatment sampling tank, characterized in that: The sampling pool (1) is fitted with a fixed frame (2) on its outer side and fixedly connected thereto. Hydraulic rods (3) are fixedly mounted at the top of each of the two opposite sides of the fixed frame (2). One end of each hydraulic rod (3) is connected to the lower ends of a horizontal plate (4). A rotating assembly (7) is mounted at the top of the horizontal plate (4). The rotating assembly (7) comprises a worm (701), a motor (702), a connecting rod (703), a worm wheel (704), a driven wheel (705), a driving wheel (706), and a main rod (707). A connecting rod (703) is rotatably mounted through the center of the horizontal plate (4), and a worm wheel (704) is fitted on the outer side of the top of the connecting rod (703) and fixedly connected thereto. One side of the worm wheel (704) meshes with the worm (701). One end of the worm gear (701) is connected to the motor (702), which is connected to one side of the cross plate (4). Two sets of drive wheels (706) are fixed at the bottom end of the connecting rod (703). The bottom end of the drive wheel (706) is connected to the center of the top of the cross mounting frame (5). The center of the bottom end of the cross mounting frame (5) is fixed to the main rod (707). The main rod (707) is connected to the cleaning brush plate (8). The driven wheel (705) is connected to the splicing assembly (9). The splicing assembly (9) is set at one set of opposite ends of the cross mounting frame (5). The splicing assembly (9) is connected to the cleaning brush roller (6). The connecting rod (703) is connected to the water supply assembly. The water supply assembly is connected to the spray pipe (14). The spray pipe (14) is set at the other set of opposite ends of the cross mounting frame (5).

2. The automatic cleaning device for a wastewater treatment sampling tank according to claim 1, characterized in that: The cross mounting bracket (5) has a set of rotating rods installed through both ends of each other, and driven wheels (705) are fitted on the outer side of each rotating rod and fixedly connected to them. A transmission belt is fitted on the outer side of the driven wheel (705), and one end of the transmission belt is fitted on the outer side of the driving wheel (706) and connected to it. The two sets of driving wheels (706) are arranged vertically, and the driving wheel (706) at the bottom is fixedly connected to the top center of the cross mounting bracket (5).

3. The automatic cleaning device for a wastewater treatment sampling tank according to claim 1, characterized in that: The water supply assembly consists of a rotary joint (12), a connecting pipe (13), and a spray pipe (14). The interior of the connecting rod (703) is hollow, and both ends of the connecting rod (703) are connected to one end of the connecting pipe (13). The other end of the connecting pipe (13) passes through the other two ends of the cross mounting bracket (5) and is fixedly connected to it. The other end of the connecting pipe (13) is connected to the spray pipe (14). The top end of the spray pipe (14) is connected to the cross mounting bracket (5). The top end of the connecting rod (703) is rotatably connected to one end of the rotary joint (12). The other end of the rotary joint (12) is fixedly provided with an elbow. The elbow is connected to a support plate, and the support plate is fixed above the horizontal plate (4).

4. The automatic cleaning device for a wastewater treatment sampling tank according to claim 1, characterized in that: The bottom end of the main rod (707) is fixed with a limiting plate (10), and the two ends of the limiting plate (10) are connected by bolts (11). Bolts (11) are fixed at the top of the cleaning brush plate (8) and are threadedly connected to nuts.

5. The automatic cleaning device for a wastewater treatment sampling tank according to claim 1, characterized in that: The splicing assembly (9) consists of a connecting plate (901) and bolts (902). Bolts (902) are fixedly provided on both sides of the top of the cleaning brush roller (6), and bolts (902) pass through the two opposite ends of the connecting plate (901) and are slidably connected to it. The bottom end of the rotating rod is fixedly connected to the connecting plate (901), and nuts (2) are threadedly connected to the outer side of bolts (902).

6. The automatic cleaning device for a wastewater treatment sampling tank according to claim 1, characterized in that: A drain pipe is fixedly installed at the bottom eccentric part of the sampling pool (1), and the drain pipe is connected to a drain valve, which is fixed at the bottom of the sampling pool (1).

7. The automatic cleaning device for a wastewater treatment sampling tank according to claim 1, characterized in that: The front side of the fixed frame (2) is fixed with a controller, which consists of a microcontroller, a relay, and a control switch assembly. The controller is electrically connected to the hydraulic rod (3), the motor (702), and the drain valve.

Citation Information

Patent Citations

  • Automatic cleaning device for sewage treatment sampling pool

    CN219851220U