A sewage treatment plant weekly in and out of secondary sedimentation tank wall automatic cleaning robot

Abstract

This application discloses an automatic cleaning robot for the walls of a circumferential inlet and outlet secondary sedimentation tank in a wastewater treatment plant. The robot includes an outer tank wall, an inner tank wall, and an effluent weir plate wall. It also includes a housing slidably mounted on the inner tank wall via a moving component. A distance-adapting rod is movably mounted on the housing. One end of the distance-adapting rod has a wall roller that abuts against the outer tank wall, and the other end has a tank wall cleaning arm. The cleaning arm has a cleaning component that adheres to the effluent weir plate wall. A sliding limiting component is also provided between the housing and the inner tank wall. This application enables the cleaning component to remain continuously pressed against the effluent weir plate wall, effectively cleaning the circumferential inlet and outlet secondary sedimentation tank with varying wall spacing. This eliminates the need for manual cleaning, reducing the labor intensity of cleaning personnel, shortening cleaning time, improving cleaning efficiency, and increasing the degree of automation.

Description

Technical Field

[0001] This application relates to the technical field of cleaning equipment for cyclic inlet and cyclic outlet secondary sedimentation tanks, and in particular to an automatic cleaning robot for the walls of cyclic inlet and cyclic outlet secondary sedimentation tanks in sewage treatment plants. Background Technology

[0002] Currently, the perimeter-inlet and perimeter-outlet secondary sedimentation tank is a common design in wastewater treatment plants, primarily used for solid-liquid separation during wastewater treatment. The characteristic of this design is that wastewater enters from the perimeter of the tank, and the settled clear water flows out from the perimeter. Due to the structural characteristics of this design, the spacing between the tank walls is uneven. Therefore, currently, automated cleaning robots for cleaning the tank walls are mainly used in secondary sedimentation tanks with a center-inlet and perimeter-outlet structure. In this structure, the spacing between the tank walls is uniform, allowing the automated cleaning robot to operate smoothly along the tank walls without getting stuck.

[0003] In related technologies, the walls of a circumferential inlet and outlet sedimentation tank are divided into outer walls, inner walls, and outlet weir walls. Due to the structural characteristics of the circumferential inlet and outlet sedimentation tank, the inner wall has a variable diameter, so the distance between the outer wall and the inner wall, and the distance between the inner wall and the outlet weir wall, will vary, resulting in unequal spacing between the walls. Therefore, it is difficult to use conventional automatic robots to continuously adhere to the outlet weir wall and clean the outlet weir wall with unequal spacing. Thus, cleaning the walls of the circumferential inlet and outlet sedimentation tank still requires manual cleaning. However, manual cleaning increases the labor intensity of the cleaning personnel, takes a long time, and has a low degree of automation.

[0004] Therefore, there is an urgent need to design an automatic cleaning robot for the cyclic inlet and cyclic outlet secondary sedimentation tanks in sewage treatment plants to effectively clean the tank walls. Summary of the Invention

[0005] The purpose of this application is to provide an automatic cleaning robot for the walls of a two-stage sedimentation tank with a cyclic inlet and outlet, in order to solve the problem that due to the structural characteristics of the two-stage sedimentation tank, the inner wall has a variable diameter, which causes the distance between the outer and inner walls, and the distance between the inner wall and the effluent weir wall to change, resulting in unequal spacing between the walls. Therefore, conventional automatic robots cannot maintain close contact with the weir wall and cannot clean the effluent weir wall with unequal spacing. Thus, cleaning the walls of the two-stage sedimentation tank still requires manual entry into the tank, which increases the labor intensity of the cleaning personnel, takes a long time, and has a low degree of automation.

[0006] This application provides an automatic cleaning robot for the walls of a secondary sedimentation tank in a wastewater treatment plant with a weekly inlet and outlet flow, employing the following technical solution: An automatic cleaning robot for the walls of a secondary sedimentation tank in a wastewater treatment plant with weekly inflow and outflow includes an outer tank wall, an inner tank wall, and an effluent weir plate tank wall. It also includes a housing slidably mounted on the inner tank wall via a moving component. A distance adapting rod is movably mounted on the housing. One end of the distance adapting rod is equipped with a wall roller that abuts against the outer tank wall, and the other end is equipped with a tank wall cleaning arm. The tank wall cleaning arm is equipped with cleaning components that fit against the effluent weir plate tank wall. A sliding limiting component is also provided between the housing and the inner tank wall.

[0007] Furthermore, the pool wall cleaning arm includes a cleaning rod one end disposed on the distance adaptation rod, and an elastic wear-resistant bend is also disposed between the cleaning rod one and the distance adaptation rod, and the cleaning component is disposed on the cleaning rod one.

[0008] Furthermore, the cleaning component is a bristle brush disposed on the outer side of the cleaning rod, the bristle brush being in close contact with the wall of the water weir plate pool, and the length of the bristle brush being shorter at the top and longer at the bottom.

[0009] Furthermore, a cleaning assembly is provided at the bottom of the casing that abuts against the inner pool wall. The cleaning assembly includes a second cleaning rod rotatably disposed at the bottom of the casing. A rotating brush is provided on the outer side of the second cleaning rod. A rotary motor connected to the top of the second cleaning rod is also provided inside the casing.

[0010] Furthermore, the sliding limiting component includes a plurality of limiting rods disposed at the bottom of the casing, each of the limiting rods having a limiting wheel rotatably mounted thereon, and the limiting wheels abutting against both sides of the inner pool wall respectively.

[0011] Furthermore, a contact charging port is provided on the inner side of the outer pool wall, and a charging electrode that cooperates with the contact charging port is provided on one side of the distance adaptation rod. An infrared receiving sensor is also provided inside the contact charging port, and an infrared transmitter that cooperates with the infrared receiving sensor is also provided on one side of the distance adaptation rod.

[0012] Furthermore, the contact charging port includes upper and lower protective plates disposed on the inner side of the outer pool wall. A slot is provided on one side of the upper and lower protective plates. A contact electrode that cooperates with the charging electrode is disposed in the slot. The slot also cooperates with the wall roller and the distance adaptation rod. The infrared receiving sensor is disposed in the slot.

[0013] Furthermore, a return baffle is provided on the inner side of the outer pool wall, and a pressure switch that cooperates with the return baffle is provided on one side of the distance adaptation rod.

[0014] Furthermore, a smooth track is provided on the inner side of the inner pool wall.

[0015] Furthermore, the moving component includes a rotating shaft rotatably mounted on the bottom of the housing via a bracket, with moving wheels at both ends of the rotating shaft and a driven gear in the middle of the rotating shaft. The housing also contains a drive motor, and the output end of the drive motor is provided with a driving gear that meshes with the driven gear.

[0016] Compared with the prior art, the beneficial effects of this application are as follows: By setting up a structure in which the casing, moving components, distance adaptation rod, wall rollers, pool wall cleaning arm, cleaning components, and sliding limit components work together, the cleaning components can be continuously pressed against the effluent weir plate pool wall. This achieves an effective cleaning effect on the circumferential inflow and outflow secondary sedimentation tank with unequal spacing between the pool walls. As a result, manual cleaning is not required, which reduces the labor intensity of cleaning personnel, shortens the cleaning time, improves cleaning efficiency, and also increases the degree of automation.

[0017] Meanwhile, by setting up a distance adaptation rod and its wall rollers to press against the outer pool wall, the pool wall cleaning arm is pressed tightly against the outlet weir plate pool wall under the reaction force provided by the outer pool wall, thereby ensuring that the pool wall cleaning arm can be tightly attached to the entire outlet weir plate pool wall, so that the cleaning component can continuously clean the outlet weir plate pool wall. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the automatic cleaning robot for the walls of the secondary sedimentation tank in a wastewater treatment plant with weekly inflow and outflow, as described in this application.

[0019] Figure 2 yes Figure 1 A sectional view.

[0020] Figure 3 This is a schematic diagram of the structure of the mobile component in an embodiment of this application.

[0021] Figure 4 This is a schematic diagram of the structure of a cleaning component according to another embodiment of this application.

[0022] Figure 5 This is a schematic diagram of the structure of the cleaning component in an embodiment of this application.

[0023] Figure 6 This is a schematic diagram of the contact charging port and infrared receiving sensor in an embodiment of this application.

[0024] Figure 7 This is a schematic diagram of the charging electrode, infrared emitter, and pressure switch in an embodiment of this application.

[0025] Figure 8 This is a schematic diagram of the structure of the contact charging port, the return baffle, and the smooth track in an embodiment of this application.

[0026] Explanation of reference numerals in the attached figures: 1. Outer pool wall; 11. Contact charging port; 111. Upper and lower protection plates; 112. Contact electrode; 113. Slot; 12. Infrared receiving sensor; 13. Return baffle; 2. Inner pool wall; 21. Smooth track; 3. Outlet weir plate pool wall; 4. Casing; 41. Distance adaptation rod; 411. Charging electrode; 412. Infrared transmitter; 413. Pressure switch; 42. Wall roller; 43. Rotating shaft; 4 31. Moving wheel; 432. Driven gear; 44. Drive motor; 441. Drive gear; 45. Limiting rod; 451. Limiting wheel; 46. Cleaning assembly; 461. Cleaning rod two; 462. Rotary brush; 463. Rotary motor; 5. Pool wall cleaning arm; 51. Cleaning rod one; 52. Elastic wear-resistant bend; 6. Cleaning components; 61. Brush; 62. Rotating sleeve; 63. Rotating rod; 64. Rotary motor. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0028] This application discloses an automatic cleaning robot for the walls of a wastewater treatment plant's weekly inlet and outlet secondary sedimentation tank, referring to... Figure 1 and Figure 2 In this embodiment, the walls of the cyclic inlet and cyclic outlet sedimentation tank are divided into an outer wall 1, an inner wall 2, and an outlet weir plate wall 3. The automatic cleaning robot is installed on the inner wall 2 to effectively clean the outlet weir plate wall 3.

[0029] Specifically, in this embodiment, the automatic cleaning robot includes a housing 4, a moving component, a distance adaptation rod 41, wall rollers 42, a pool wall cleaning arm 5, a cleaning component 6, and a sliding limiter. The housing 4 is slidably mounted on the top of the inner pool wall 2 via the moving component; and the sliding limiter is positioned between the housing 4 and the inner pool wall 2 to slidably limit the housing 4 on the top of the inner pool wall 2, thereby allowing the housing 4 to automatically slide along the top of the inner pool wall 2 under the driving action of the moving component.

[0030] More specifically, refer to Figure 2 and Figure 3In this embodiment, the moving assembly includes a rotating shaft 43, a moving wheel 431, a driven gear 432, a drive motor 44, and a driving gear 441. The rotating shaft 43 is rotatably mounted on the inner bottom of the casing 4 via a bracket. Two moving wheels 431 are provided, symmetrically mounted at both ends of the rotating shaft 43, and abut against the top of the inner pool wall 2. The driven gear 432 is mounted in the middle of the rotating shaft 43. The drive motor 44 is mounted inside the casing 4. The driving gear 441 is mounted at the output end of the drive motor 44, and the driving gear 441 meshes with the driven gear 432.

[0031] When the drive motor 44 is started, the output end of the drive motor 44 drives the driving gear 441 to rotate, which in turn drives the driven gear 432 to rotate. The driven gear 432 then drives the rotating shaft 43 to rotate, thereby causing the rotating shaft 43 to simultaneously drive the two moving wheels 431 to rotate. Then, under the limiting action of the sliding limiter, the entire casing 4 can move back and forth on the top of the inner pool wall 2.

[0032] Furthermore, to improve the automation level of the housing 4, an external control system can be connected in conjunction with the drive motor 44. This allows the external control system to control the opening and closing of the drive motor 44 in real time, thereby enabling effective control of the movement of the housing 4 and improving its automation level. It should be noted that this control system is existing technology and will not be elaborated upon here.

[0033] At the same time, refer to Figure 1 and Figure 2 In this embodiment, the sliding limiting component includes limiting rods 45 and limiting wheels 451. There are four limiting rods 45, evenly divided into two groups. The top ends of the two groups of limiting rods 45 are symmetrically installed on both sides of the bottom of the casing 4, and these two groups of limiting rods 45 are located on both sides of the inner pool wall 2. There are eight limiting wheels 451, evenly divided into four groups. The four groups of limiting wheels 451 are rotatably mounted on the four limiting rods 45, and these limiting wheels 451 abut against both sides of the inner pool wall 2. By setting up this structure where the limiting rods 45 and limiting wheels 451 cooperate with each other, the casing 4 can be effectively limited to the top of the inner pool wall 2.

[0034] Additionally, refer to Figure 1In this embodiment, the distance adaptation rod 41 is movably mounted on the housing 4, and the distance adaptation rod 41 passes through both sides of the housing 4 and can move left and right; the wall roller 42 is rotatably mounted on one end of the distance adaptation rod 41, and the wall roller 42 abuts against the inner side of the outer pool wall 1; the pool wall cleaning arm 5 is mounted on the outer side of the end of the distance adaptation rod 41 away from the wall roller 42, and the pool wall cleaning arm 5 cooperates with the inner side of the outlet weir plate pool wall 3; the cleaning component 6 is mounted on the pool wall cleaning arm 5, and the cleaning component 6 is attached to the inner side of the outlet weir plate pool wall 3.

[0035] By setting the distance adaptation rod 41 and its wall roller 42 against the outer pool wall 1, the pool wall cleaning arm 5 is pressed tightly against the outlet weir plate pool wall 3 under the reaction force provided by the outer pool wall 1, thereby ensuring that the pool wall cleaning arm 5 can be tightly attached to the entire outlet weir plate pool wall 3, so that the cleaning component 6 can continuously clean the outlet weir plate pool wall 3.

[0036] Specifically, refer to Figure 1 and Figure 2 In this embodiment, the pool wall cleaning arm 5 includes a cleaning rod 51 and an elastic wear-resistant bend 52. One end of the cleaning rod 51 is connected to the outer side of the end of the adapting rod 41 away from the wall roller 42, and the other end of the cleaning rod 51 extends downward in an arc and cooperates with the inner side of the outlet weir plate pool wall 3. One end of the elastic wear-resistant bend 52 is connected to one side of the adapting rod 41, and the other end of the elastic wear-resistant bend 52 is connected to the outer side of the top of the cleaning rod 51.

[0037] The cleaning component 6 is a bristle brush 61 installed on the outside of the cleaning rod 51. The bristle brush 61 is in close contact with the inside of the water outlet weir plate pool wall 3, and the length of the bristle brush 61 is also designed to be inconsistent, with the upper part being shorter and the lower part being longer. This design ensures that the wall surface near the bottom of the pool can also be cleaned in close contact, thereby improving the cleaning effect.

[0038] In addition, the elastic wear-resistant bend 52 is made of wear-resistant elastic material, which allows the cleaning rod 51 below to fit better against the inner side of the outlet weir plate pool wall 3; and the elastic range of the elastic wear-resistant bend 52, combined with the distance adaptation rod 41 moving left and right in the housing 4, can achieve different distances between the outer pool wall 1 and the inner pool wall 2, so that the bristle 61 on the cleaning rod 51 can also fit tightly against the outlet weir plate pool wall 3 for cleaning.

[0039] In addition, refer to Figure 1 and Figure 4In another embodiment, the cleaning component 6 includes a rotating sleeve 62, a broom 61, a rotating rod 63, and a rotating motor 64. The top end of the rotating sleeve 62 is rotatably mounted on the outer side of the cleaning rod 51 near the distance adaptation rod 41 via a bearing, so that the rotating sleeve 62 is rotatably fitted onto the outside of the cleaning rod 51. The broom 61 is mounted on the outer side of the rotating sleeve 62, and the broom 61 is in close contact with the inner side of the outlet weir plate pool wall 3.

[0040] The rotating rod 63 is provided with multiple rods. One end of each rotating rod 63 is connected to the bottom end of the rotating sleeve 62. The other ends of each rotating rod 63 are inclined upward and converge with each other to form a convergence connection point. The rotating motor 64 is installed inside the end of the cleaning rod 51 away from the distance adaptation rod 41, and the output end of the rotating motor 64 is fixedly connected to the convergence connection point.

[0041] When the rotating motor 64 is started, the output end of the rotating motor 64 drives the agglomeration connection point to rotate, which causes the rotating rods 63 to drive the rotating sleeve 62 to rotate. At the same time, under the action of the bearing, the rotating sleeve 62 drives the broom 61 to rotate and clean the inner side of the outlet weir plate pool wall 3, thereby better cleaning the inner side of the outlet weir plate pool wall 3.

[0042] Better, refer to Figure 1 and Figure 5 In this embodiment, cleaning components 46 are provided on both sides of the bottom of the casing 4, which abut against the two sides of the inner pool wall 2. Under the movement of the casing 4, the cleaning components 46 are driven to effectively clean the inner pool wall 2.

[0043] Specifically, the cleaning assembly 46 includes a second cleaning rod 461, a rotating brush 462, and a rotating motor 463. The second cleaning rod 461 is rotatably mounted on the bottom side of the housing 4; the rotating brush 462 is mounted on the outside of the second cleaning rod 461 and is in contact with the inner tank wall 2; the rotating motor 463 is mounted inside the housing 4, and its output end is connected to the top of the second cleaning rod 461.

[0044] When the rotary motor 463 is started, the output end of the rotary motor 463 drives the second cleaning rod 461 to rotate, and the second cleaning rod 461 drives the rotary brush 462 to rotate, so as to move and clean the inner pool wall 2.

[0045] Secondly, refer to Figure 6 and Figure 7In this embodiment, a contact charging port 11 is installed on the inner side of the outer pool wall 1, and a charging electrode 411 is installed on the side of the distance adaptation rod 41 near the wall roller 42. The charging electrode 411 cooperates with the contact charging port 11, and a battery connected to the charging electrode 411 is also installed in the casing 4. When the charging electrode 411 and the contact charging port 11 are in contact, the battery can be charged. The battery is also connected to the drive motor 44 and the rotary motor 463 to provide power to the drive motor 44 and the rotary motor 463, thereby achieving the automatic operation and automatic cleaning effect of the robot.

[0046] Specifically, the contact charging port 11 includes upper and lower protective plates 111 and contact electrodes 112. The upper and lower protective plates 111 are installed on the inner side of the outer pool wall 1, and a slot 113 is formed on one side of the upper and lower protective plates 111. The slot 113 cooperates with the wall roller 42 and the distance adaptation rod 41, so that one end of the wall roller 42 and the distance adaptation rod 41 can enter the slot 113. The contact electrode 112 is installed in the slot 113 and cooperates with the charging electrode 411 to facilitate electrode contact charging, thereby realizing the automatic charging function.

[0047] Since the contact charging port 11 is installed on the outer pool wall 1, the upper and lower protective plates 111 are set to block splashing water, thereby protecting the contact electrode 112 and ensuring that splashing water does not come into contact with the contact electrode 112.

[0048] Meanwhile, an infrared receiving sensor 12 is installed in the slot 113 of the upper and lower protective plates 111, and an infrared transmitter 412 is installed on one side of the distance adaptation rod 41. The infrared transmitter 412 and the infrared receiving sensor 12 cooperate with each other. When the robot moves close to the contact charging port 11, the distance can be determined and electrode contact charging can be achieved through the infrared sensing between the infrared transmitter 412 and the infrared receiving sensor 12. Specifically, the infrared transmitter 412 and the infrared receiving sensor 12 are existing devices and will not be described in detail here.

[0049] Additionally, because secondary sedimentation tanks typically have maintenance bridges leading to sludge hoppers, which robots cannot traverse, therefore, [following / referring to...] Figure 7 and Figure 8 In this embodiment, a return baffle 13 is also installed on the inner side of the outer pool wall 1, and a pressure switch 413 is also installed on the side of the distance from the adaptation rod 41. The pressure switch 413 cooperates with the return baffle 13, and the pressure switch 413 is connected to the drive motor 44 and the control system. Specifically, the pressure switch 413 is an existing device, and will not be described in detail here.

[0050] When the robot moves to this position, the pressure switch 413 on the distance adaptation rod 41 abuts against the return baffle 13 to block the distance adaptation rod 41. Then, the pressure switch 413 sends a contact signal to the control system. After receiving the signal, the control system controls the drive motor 44 to rotate in the opposite direction, thereby automatically reminding the robot to change its direction of travel and return.

[0051] Ideally, because the inner wall of some secondary sedimentation tanks has a stepped change in diameter at the inlet location, it can easily cause the robot to get stuck during movement. Therefore, refer to... Figure 8 In this embodiment, a smooth track 21 is also installed on the inner side of the inner pool wall 2. By setting the smooth track 21 at this position, the robot's travel route can be optimized, so that the robot can move smoothly through the stepped diameter change position of the inner pool wall 2.

[0052] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An automatic cleaning robot for the walls of a secondary sedimentation tank in a wastewater treatment plant with a weekly inlet and outlet, comprising an outer tank wall (1), an inner tank wall (2), and an outlet weir plate tank wall (3), characterized in that: It also includes a housing (4) that is slidably mounted on the inner pool wall (2) via a movable component. A distance adaptation rod (41) is movably mounted on the housing (4). One end of the distance adaptation rod (41) is provided with a wall roller (42) that abuts against the outer pool wall (1). The other end of the distance adaptation rod (41) is provided with a pool wall cleaning arm (5). A cleaning component (6) that fits against the outlet weir plate pool wall (3) is provided on the pool wall cleaning arm (5). A sliding limit component is also provided between the housing (4) and the inner pool wall (2).

2. The automatic cleaning robot for the walls of a secondary sedimentation tank in a wastewater treatment plant with a weekly inlet and outlet as described in claim 1, characterized in that: The pool wall cleaning arm (5) includes a cleaning rod (51) with one end set on the distance adaptation rod (41), and an elastic wear-resistant bend (52) is also provided between the cleaning rod (51) and the distance adaptation rod (41). The cleaning component (6) is set on the cleaning rod (51).

3. The automatic cleaning robot for the walls of a secondary sedimentation tank in a wastewater treatment plant with a weekly inlet and outlet as described in claim 2, characterized in that: The cleaning component (6) is a bristle brush (61) located on the outside of the cleaning rod (51). The bristle brush (61) is in close contact with the wall of the water weir plate pool, and the length of the bristle brush (61) is designed to be shorter at the top and longer at the bottom.

4. The automatic cleaning robot for the walls of a secondary sedimentation tank in a wastewater treatment plant with a weekly inlet and outlet as described in claim 1, characterized in that: The bottom of the casing (4) is provided with a cleaning assembly (46) that abuts against the inner pool wall (2). The cleaning assembly (46) includes a second cleaning rod (461) that is rotatably disposed at the bottom of the casing (4). A rotating brush (462) is provided on the outside of the second cleaning rod (461). The inside of the casing (4) is also provided with a rotary motor (463) that is connected to the top of the second cleaning rod (461).

5. The automatic cleaning robot for the walls of a secondary sedimentation tank in a wastewater treatment plant with a weekly inlet and outlet as described in claim 1, characterized in that: The sliding limiting component includes several limiting rods (45) disposed at the bottom of the casing (4), and several limiting rods (45) are provided with limiting wheels (451) rolling on them, and several limiting wheels (451) respectively abut against both sides of the inner pool wall (2).

6. The automatic cleaning robot for the walls of a secondary sedimentation tank in a wastewater treatment plant with a weekly inlet and outlet as described in claim 1, characterized in that: A contact charging port (11) is provided on the inner side of the outer pool wall (1). A charging electrode (411) that cooperates with the contact charging port (11) is provided on one side of the distance adaptation rod (41). An infrared receiving sensor (12) is also provided inside the contact charging port (11). An infrared transmitter (412) that cooperates with the infrared receiving sensor (12) is also provided on one side of the distance adaptation rod (41).

7. The automatic cleaning robot for the walls of a secondary sedimentation tank in a wastewater treatment plant with a weekly inlet and outlet as described in claim 6, characterized in that: The contact charging port (11) includes upper and lower protective plates (111) disposed on the inner side of the outer pool wall (1). A slot (113) is provided on one side of the upper and lower protective plates (111). A contact electrode (112) that cooperates with the charging electrode (411) is disposed in the slot (113). The slot (113) also cooperates with the wall roller (42) and the distance adaptation rod (41). The infrared receiving sensor (12) is disposed in the slot (113).

8. The automatic cleaning robot for the walls of a secondary sedimentation tank in a wastewater treatment plant with a weekly inlet and outlet as described in claim 1, characterized in that: The inner side of the outer pool wall (1) is also provided with a return baffle (13), and a pressure switch (413) that cooperates with the return baffle (13) is provided on one side of the distance adaptation rod (41).

9. The automatic cleaning robot for the walls of a secondary sedimentation tank in a wastewater treatment plant with a weekly inlet and outlet as described in claim 1, characterized in that: The inner side of the inner pool wall (2) is also provided with a smooth track (21).

10. The automatic cleaning robot for the walls of a secondary sedimentation tank in a wastewater treatment plant with a weekly inlet and outlet as described in claim 1, characterized in that: The moving component includes a rotating shaft (43) rotatably mounted on the bottom of the housing (4) via a bracket. Both ends of the rotating shaft (43) are provided with moving wheels (431), and a driven gear (432) is provided in the middle of the rotating shaft (43). A drive motor (44) is also provided inside the housing (4), and the output end of the drive motor (44) is provided with a driving gear (441) that meshes with the driven gear (432).

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