441results about "Sewer systems" patented technology

A downspout end cover protects and closes a lower end of a cylindrical rain gutter downspout assembly. The cover includes a body that forms a continuous hollow channel for passage of collected rainwater. An aperture at the back of the body is sized to attach to the downspout, and a front cylindrical or oval aperture emits collected rainwater. A door is rotatably attached to the front of the body at a top of the front of the body by a hinge and when closed, prevents entry of animals, insects or blown debris. The front of the body may be sloped and the door may rest against an inset ledge that protects the door and seals the downspout end cover against entry of insects and preventing detachment of the door from the body. The hinge may be offset from the back surface of the door by an arm.

The invention belongs to the related technical field of pipe network leakage detection, and provides a comprehensive detection method and system for leakage of an underground sewage pipe network in an industrial park in order to solve the problems that existing pipe network leakage detection is inaccurate, large-area detection is difficult and the like. Performing inversion on the acquired data by adopting prior constraint, and judging a detection section of suspected leakage abnormity according to a resistivity profile; further detecting the detection section with the suspected leakage abnormity by using a high-density resistivity method and an induced polarization method, refining a grid based on an electromagnetic method result and prior information, introducing directional smooth constraint and minimum gradient support to perform inversion constraint on acquired data, and positioning a leakage area; sampling to judge the authenticity of the leakage of the detected area, and peeping, measuring and positioning the leakage area through the pipeline robot; and rapid identification and delineation of the pipe network leakage risk area of the industrial park are realized through cooperation of multiple methods.

To suppress danger in construction work and deterioration in workability by reducing flow passage obstruction in a sewer and an influence of a large pipe diameter with respect to a fixing jig for a sensor which measures information from the pipe bottom of the sewer.SOLUTION: A fixing jig 20 for a sensor comprises an arcuate jig body 21 fitted with a water level sensor 22, guide holes 25a, 25b formed on both sides of the jig body 21, and fixtures 23a, 23b and 24a, 24b for fitting both sides to an inner wall 3a of a sewer 3. Anchor bolts 28 embedded in the inner wall 3a of the sewer 3 are inserted into through holes 27 and guide holes 25a, 25b of the fixtures 23a, 24a and fastened with nuts to fix the fixing jig 20 to the inner wall 3a.SELECTED DRAWING: Figure 2

A multifunctional construction site cleaning robot and a cleaning method using the same are provided. The robot includes a chassis part; a bottom rotatable function part, including a sweeper unit, an iron remover unit, a leaf remover unit and a cutter unit; a debris treatment part, including a compression unit, a debris container and a pulverizing unit; a container exchange part, including a movable gripper unit and openable containers, the openable containers being configured to contain sundries collected by the sweeper unit and the iron remover unit; a spray part, configured to prewet or dedust a construction site; and a water transfer part, including an extensible water discharging unit and an extensible water pumping unit, the extensible water discharging unit being configured to pump accumulated water, and the extensible water pumping unit being configured to pump accumulated water from a bottom of a pit to the ground.

The invention relates to the technical field of municipal engineering, in particular to a sewer plugging device. According to the technical scheme, the sewer plugging device comprises an inflatable air bag, a sliding cylinder structure capable of relatively sliding front and back, an umbrella-shaped supporting frame and a fixed supporting piece, the inflatable air bag is fixedly arranged at the front end of the sliding cylinder structure, and the umbrella-shaped supporting frame is in driving connection with the sliding cylinder structure; the fixed supporting piece is fixedly arranged at the tail end of an outer supporting rod of the umbrella-shaped supporting frame. The device has the beneficial effects that the whole structure does not need to utilize power mechanisms such as electric power or hydraulic power mechanisms and can effectively adapt to the underwater operation environment.

A system and method for measuring or for estimating flow or flowrate of a fluid, including wastewater inflow or infiltration, using non-contact depth-based flow measurement, including: receiving a depth sensor signal from an ultrasonic depth sensor positionable over a manhole channel above an outgoing pipe's crown; receiving a temperature signal from a temperature sensor positionable within the manhole channel; receiving one or more data input signals; calculating a distance to a surface of the fluid based on the received depth sensor signal; and determining a depth of the fluid in the manhole channel based on the calculated distance. Flow velocity may be calculated using Manning's equation or the Hazen-Williams equation, with flow rate subsequently determined using the continuity equation. Alternatively, flow velocity and flow rate may be estimated using a machine learning model trained on simulated or historical time-series data of flow rate, flow velocity, and flow depth, along with pipe attributes, to generate real-time flow estimates based on current and prior flow depth measurements.

The pipe network pump station desilting robot of the double-flow-channel suction pump structure comprises a robot shell body, a mounting support is fixedly mounted at the bottom of the robot shell body, a variable-frequency speed regulator is fixedly mounted on the outer side of the mounting support, crawler wheels are arranged on the inner side of the variable-frequency speed regulator, and the crawler wheels are fixedly mounted on the outer side of the mounting support. A double-flow-channel suction pump assembly is arranged on the outer side of the robot shell body, and a self-adaptive adjusting assembly is arranged on the outer side of the robot shell body. According to the pipe network pump station dredging robot of the double-flow-channel suction pump structure, by arranging the double-flow-channel suction pump assembly, a strong negative pressure suction environment can be formed, the sludge adhesion amount can be reduced, efficiency reduction caused by reduction of the cross section of the flow channel is avoided, the negative pressure strength of the main suction flow channel is supplemented, the air suction phenomenon is avoided, the self-adaptive adjusting assembly is arranged, and a pressure sensor monitors the main suction flow channel in real time; closed-loop control of blocking early warning, active intervention and risk elimination is achieved, a visual monitoring assembly is arranged, the equipment fault maintenance frequency is reduced, and the operation efficiency is improved.

According to the pilot valve, the vacuum valve, the vacuum valve system and the method for recovering the initial condition of the vacuum valve, different from an existing pilot valve which is only used for controlling negative pressure to enter a main valve so that the main valve can open or close a drainage channel, after improvement, related cavities of the pilot valve are communicated, the negative pressure is introduced into the main valve, and meanwhile the negative pressure enters the main valve; the liquid level difference is also introduced into the related cavity of the pilot valve, so that the pilot valve can still keep the state in the water pumping process of the vacuum valve even if the liquid level difference is lower than a preset value, and the vacuum valve continuously pumps water until the liquid level in the facility is lower than the bottom of the water suction pipe, and air is sucked into the related cavity of the pilot valve to dilute the negative pressure amount of the related cavity; therefore, the pilot valve can restore to the initial position, the vacuum valve is triggered again, and the initial liquid level of the vacuum valve can restore to be consistent.

A trenchless, rodent-blocking apparatus for creating a one-way check valve, or gate, within for a sewer cleanout operable to permit through flow of sewer down the sewer pipe but prevent rodent entry up the sewer pipe. The disclosed assembly inserts vertically into a sewer cleanout without requiring excavation or demolition.

This invention relates to the diagnosis of sedimentation in drainage networks, specifically providing an unmanned underwater vehicle (UUV) based maintenance decision-making method for drainage pipeline sedimentation diagnosis and waterlogging warning. The UUV of this invention consists of an integrated hull inside the pipeline and a manhole box. The integrated hull inside the pipeline includes a Doppler ultrasound module, a three-axis gyroscope, a high-definition infrared camera, a main controller, a deep learning development board, baffles, a cabin cover, a cabin, fins, towing rings, and a navigation interface. The Doppler ultrasound module, three-axis gyroscope, high-definition infrared camera, navigation interface, and deep learning development board are each connected to the main controller. The fins, towing rings, cabin cover, and baffles are connected to the cabin.

The invention discloses a water quality concentration acquisition and real-time detection system and method, and relates to the field of environmental monitoring, the system comprises a sampling scheduling module, an analysis detection module, a trigger judgment module, an interpolation modeling module and a linkage control module. According to the method, the historical concentration data and the environmental factors are modeled by introducing the machine learning algorithm, the migration trend of the pollutants in the water body can be predicted, the acquisition nodes are scheduled in advance to sample a high-concentration area possibly occurring, missing detection and delayed response are effectively avoided, and the early warning capability of pollution emergencies is improved. By fusing remote sensing images, ground sampling data and hydrodynamic information and utilizing an improved geographically weighted regression model and a graph neural network algorithm, concentration interpolation prediction is carried out on a non-point distribution area, and the problem that traditional point location type monitoring space coverage is insufficient is solved.

The utility model relates to an electro-hydraulic quick-closing gate device which comprises an electro-hydraulic actuator, a guide rod and a gate which are sequentially connected. The electro-hydraulic actuator comprises a hydraulic oil cylinder, a hydraulic oil tank, an electric control box, an energy storage device, a power mechanism, a first reversing mechanism and a fixing support. The first end of the power mechanism is connected with the hydraulic oil tank, the second end of the power mechanism can communicate with the first end of the hydraulic oil cylinder and the second end of the hydraulic oil cylinder, the energy accumulator can communicate with the second end of the hydraulic oil cylinder, and the first reversing mechanism is configured to switch the second end of the hydraulic oil cylinder between communicating the second end of the power mechanism and communicating the energy accumulator. The hydraulic oil cylinder is arranged in the middle of the fixing support, the hydraulic oil tank and the power mechanism are arranged at the first side end of the fixing support, and the accumulator is arranged at the second side end of the fixing support. The electro-hydraulic quick-closing gate device can meet the condition that a gate needs to be closed quickly when rear-end equipment breaks down, meanwhile, the gate can be closed quickly when a system is in a power failure state, and the safety of rear-end process equipment and personnel is ensured.

The utility model discloses a cleaning device for silt garbage in a grit chamber of a drip irrigation pump room, which belongs to the technical field of silt cleaning and comprises a vehicle body, a collecting shovel is rotatably connected to the front of the vehicle body, an adjusting component is fixedly connected to one end of the upper surface of the vehicle body, and a first filter frame is fixedly connected to the inside of the vehicle body. A second filter frame is fixedly connected to the interior of the first filter frame, a sludge pump is fixedly connected to the upper surface of the second filter frame, a telescopic pipe is fixedly connected to the outlet end of the sludge pump, and a separation assembly is fixedly connected to the middle end of the upper surface of the vehicle body. By arranging the adjusting assembly and the collecting shovel, the angle can be adjusted, the collecting shovel can be tightly attached to the bottom face of the grit chamber, large-area and high-efficiency cleaning operation is achieved in combination with driving of the crawler wheels, automatic pushing of garbage is achieved by moving the moving plate and the pushing plate in the vehicle body, garbage is prevented from being accumulated in the vehicle body, and the working efficiency is improved. Effective separation of the sludge and the garbage is ensured, and subsequent treatment is facilitated.

The utility model relates to a positive and negative pressure switching unloading protection system for a vacuum pump, which is applied to a tank body of a suction-type sewer scavenger and comprises the vacuum pump and a four-way valve, the four-way valve is provided with a first connecting port communicated with the tank body, a second connecting port communicated with the air inlet end of the vacuum pump, a third connecting port communicated with the air outlet end of the vacuum pump and a fourth connecting port, and the four-way valve has a first state, a second state and a third state; when the sewage suction truck carries out sewage suction operation, the four-way valve is in a first state, the vacuum pump generates suction force to the tank body of the sewage suction truck, when the sewage suction truck needs to discharge sewage, the four-way valve is in a third state, the vacuum pump supplies air into the tank body of the sewage suction truck, and when the four-way valve is switched between the first state and the third state, the four-way valve is switched to the third state firstly, and the vacuum pump supplies air into the tank body of the sewage suction truck. The air inlet end and the air outlet end of the vacuum pump are communicated, switching is carried out until unloading of the vacuum pump is completed, and the internal pressure conversion process is gentle in the positive and negative pressure switching process of the vacuum pump.

The utility model provides a cleaning sewage suction truck with a vacuum intercommunication function, which comprises a tank body, a partition plate is arranged in the tank body and divides the tank body into a clean water tank and a sewage tank, a vacuum pump is arranged below the tank body, and a vacuum intercommunication ball valve for connecting the clean water tank and the sewage tank is arranged at the top of the tank body. And vacuum is formed in the two tank bodies through the vacuum intercommunication ball valves. According to the cleaning suction-type sewer scavenger with the vacuum intercommunication function, the two independent tank bodies of the clear water tank and the sewage tank are connected through the straight-through ball valve, and vacuum can be formed in the two tank bodies. Therefore, the function that the two tank bodies of the suction-type sewer scavenger are communicated in a vacuum mode can be achieved, storage selection is increased, the clean water tank can achieve self-water-sucking operation through the function, and the environmental adaptability of the suction-type sewer scavenger is improved.

The invention belongs to the technical field of drainage robots, and particularly relates to a crawler-type drainage robot for cleaning urban drainage crossings, an engine is fixedly mounted on the inner wall of a machine body, a suspension is fixedly connected to the outer wall of the bottom of the machine body, a water suction pump is fixedly mounted on the outer wall of the top of the suspension, and the water suction pump is driven by stretching adjustment of a spring hose. The water pumping position can extend to a low-lying position for water pumping, so that self-adaption of the water pumping height is achieved, meanwhile, the water pumping opening of the spring hose is aligned with a sewer opening, high-pressure water pumping suction force can suck up part of light garbage blocking the sewer opening, the light garbage is separated from the sewer opening, and the blocking condition of a sewer is relieved. Therefore, the drainage efficiency is improved, and the drainage mode is improved.

The present invention belongs to the technical field of pipeline inspection robots, and in particular to an intelligent inspection robot for drainage pipe networks and its usage method. Aiming at the problems that the existing sludge hinders the progress of the robot and the camera is blocked by sewage and sludge, the following solution is now proposed, which includes a mobile vehicle. A camera is fixed on the top of the mobile vehicle for inspecting the drainage pipeline. A mud guide channel is provided inside the mobile vehicle. A rotating disk is rotatably connected to one side of the mobile vehicle for discharging the sludge into the mud guide channel. A screw conveyor is rotatably connected inside the mud guide channel for discharging the sludge to the outside. In the present invention, the screw conveyor and the rotating disk are driven to rotate simultaneously. The rotating disk can break up the sludge on the forward path and discharge it into the mud guide channel, and the cooperation of the screw conveyor and the sewage discharge hose can evenly spray the sludge in the mud guide channel on the inner wall of the pipeline, avoiding the re-accumulation of sludge from hindering the return of the mobile vehicle. Moreover, during the process of flushing the glass protective cover, the sewage can flow back into the mud guide channel.

The utility model provides an anti-overturning device for raft type drainage pipeline detection equipment. The anti-overturning device comprises an air bag, a telescopic rod, a supporting rod, a bolt and a hoop. The two air bags are made of hard plastic and are connected with the two telescopic rods through the two hoops respectively, the two ends of the telescopic rods are connected with the hoops in a welded mode, and the two telescopic rods are connected through the four supporting rods in a welded mode. The raft-type drainage pipeline detection device overcomes the problems that raft-type pipeline detection equipment is easy to overturn, a lens is submerged by water and detection cannot be carried out in large-pipe-diameter, deep-water-level and rapid-water-flow pipeline environments, and the anti-overturning device can increase the balance moment of the raft-type drainage pipeline detection equipment, so that the raft-type pipeline detection equipment is effectively prevented from rotating, turning on one side and even overturning.

The present application belongs to the technical field of roadway dredging, and particularly relates to a kind of underground roadway drainage ditch dredging device.The dredging device comprises: a tracked vehicle, a tracked rail is laid on the bottom of the drainage ditch in the extension direction of the drainage ditch, and the tracked vehicle moves on the tracked rail; a sawtooth blade, the sawtooth blade is arranged at the front end of the tracked vehicle, and the sawtooth blade scoops up the sludge in the drainage ditch during the forward movement of the tracked vehicle; a storage mechanism, the storage mechanism is arranged at the rear end of the tracked vehicle, the sludge is accumulated in the storage mechanism during the forward movement of the tracked vehicle, and the sludge is unloaded in the sedimentation tank after being displaced to the position of the sedimentation tank.In the dredging device, the sludge is temporarily stored in the storage mechanism at the rear end of the tracked vehicle, and the sludge stored by the storage mechanism is unloaded into the sedimentation tank after the tracked vehicle moves to the position of the sedimentation tank.The dredging device greatly reduces the labor intensity of dredging work and improves the work efficiency.

The utility model relates to small-pipe-diameter inner shallow accumulated water pumping drainage equipment, which belongs to the technical field of drainage equipment or water pumps and comprises a pipeline, a moving trolley is attached to the inner wall of the pipeline, a single-phase screw self-priming pump is welded in the moving trolley, the left side of the single-phase screw self-priming pump is communicated with a water inlet pipe, and the right side of the single-phase screw self-priming pump is communicated with a water outlet pipe. The right side of the single-phase screw self-priming pump communicates with a water drainage pipe, and a moving assembly is arranged on the lower side of the moving trolley. The moving assembly comprises two universal wheels installed at the left end of the lower side of the moving trolley through bolts and two directional wheels connected to the right end of the lower side of the moving trolley through bolts. According to the small-pipe-diameter inner shallow accumulated water pumping and draining equipment, the connecting rope at one end of the moving trolley pulls the moving trolley to transversely move in the pipeline, the water inlet pipe and the water drainage pipe on the left side of the single-phase screw self-priming pump are matched to absorb and drain water in the pipeline, accumulated water in the pipeline is effectively cleaned, and the cleaning efficiency in the pipeline is improved.

The utility model discloses an assembly type highway bridge structure based on modularization replaceable node relates to highway bridge design technical field, including beam board, the flow guide groove of being set up in the inner wall of beam board, the buffer board of being set up in the inner wall top of flow guide groove, the through -hole of having on the top of buffer board, the type board of fixed connection in the inner wall of flow guide groove, the dredging device of detachable fixed connection in the inner wall of type board, the dredging device is used for the impact dredging of through -hole, the dredging device includes vertical cylinder, the inner wall swing joint of vertical cylinder has the piston, the bottom surface fixed connection of piston has return spring. The utility model discloses through setting buffer board and dredging device, utilize the pressure of the vehicle travel to drive impact lance to carry out repeated airflow impact to through -hole, can complete dredging automatically when the through -hole is blocked, avoid the tediousness and high cost of manual dredging, ensure that the bridge deck rainwater is discharged in time, reduce the damage of accumulated water to bridge structure.

The invention relates to the technical field of stainless steel materials, and particularly discloses 304 stainless steel for a flow-limiting downward-opening type checkgate and a machining process thereof.The machining process comprises the steps that firstly, the surface of the 304 stainless steel is pretreated through aluminum oxide particles, the roughness of the surface of the stainless steel is increased, and then an aluminum-cobalt-chromium-iron-nickel high-entropy alloy layer is formed on the surface of the stainless steel through magnetron sputtering; aluminum is distributed in an alloy layer in a gradient mode by adopting a mode of improving the power of an aluminum target to form a gradient layer, and then subzero treatment, pulse circulation treatment, hole sealing by a hole sealing agent and annealing treatment are carried out, so that the 304 stainless steel for the flow-limiting open-type checkgate with good hardness, erosion resistance and corrosion resistance is obtained, the service life of the checkgate is prolonged, and the service life of the checkgate is prolonged. And the maintenance cost during weir gate replacement is reduced.

The invention relates to a pipe inspection device (1) comprising a carriage (2) designed for movement in a pipe (20), a flexible push rod (12) which is attached to the carriage (2) at a first axial end, and an inspection unit (14) which is attached to a second axial end of the push rod (12).

Sewer inspection and / or maintenance unit (1) with an electrical consumer (10), wherein the sewer inspection and / or maintenance unit (1) can be or is coupled via a cable (20) to an external energy supply unit (21) for supplying the sewer inspection and / or maintenance unit (1) with electrical energy, characterized in that the sewer inspection and / or maintenance unit (1) has an internal energy supply unit (30) which - is coupled or can be coupled to the electrical consumer (10) in order to supply the electrical consumer (10) with electrical energy, - is coupled or can be coupled to the external power supply unit (21), and - is adapted to store electrical energy and to be charged by means of the external energy supply unit (21).

The utility model relates to a well chamber underwater plugging device which comprises an expansion head, the expansion head comprises a left extrusion plate and a right fixing plate, the center of the left extrusion plate is rotatably connected with a screw rod, the two ends of the screw rod extend out of the left extrusion plate and the right fixing plate respectively, and filler is arranged between the left extrusion plate and the right fixing plate and on the screw rod in a sleeved mode. The side, away from the filler, of the left extrusion plate is fixedly connected with an extrusion sleeve used in cooperation with the screw, the end, extending out of the right fixing plate, of the screw is sleeved with a connecting sleeve, the upper portion of the connecting sleeve is rotationally connected with a lower probe rod through a rotating shaft, a ring sleeve is arranged on the portion, above the connecting sleeve, of one side of the lower probe rod, and a clamping piece is arranged in the ring sleeve. One side of the clamping piece is fixedly connected with a pull rod, and the side, away from the expansion head, of the connecting sleeve is sleeved with a universal coupling. The expansion head is reasonable in structure, the expansion head can be lowered into a pipeline needing to be blocked through the rotating rod and the lower probe rod, and compared with a traditional blocking mode, an operator does not need to descend into a well for operation firstly.

The utility model discloses an anti-clogging sewage suction truck, which relates to the technical field of sewage suction trucks and comprises a sewage suction tank and an anti-clogging component, a bracket is arranged at the bottom of the sewage suction tank, a truck body is arranged at the bottom of the bracket, and the anti-clogging component for solid crushing and clogging prevention is arranged on the left side of the surface of the sewage suction tank. And the anti-blocking assembly comprises a crushing box, a crushing cutter, a connecting pipe, a mounting pipe and a suction pipe, the crushing cutter is mounted in the crushing box through a motor, the rear side of the crushing box is connected with the connecting pipe, the mounting pipe is arranged at the lower end of the crushing box, and the suction pipe is mounted at the lower end of the mounting pipe. According to the anti-blocking sewage suction truck, sucked sewage is pretreated through the crushing box and the crushing cutter, the crushing cutter is driven by the motor to rapidly cut in the crushing box to crush fixed sundries in the sewage, and the situation that the fixed sundries are large in size and accumulated, and consequently the sewage suction pipeline and the body are blocked is avoided; the crushing box is communicated with the interior of the sewage suction tank through the connecting pipe.

A check cover assembly for a backflow prevention assembly having a body defining an interior housing a test cock. The check cover assembly includes a ball with a central aperture and a complementary groove in an outer circumference of the ball as well as a base including a shroud portion housing the ball to create a ball valve. The shroud portion defines an access gap for accessing an actuation feature slot with a landkey of the ball valve and a threaded opening. A coupling is attached to the threaded opening in fluid communication with the interior for connecting to testing equipment. The actuation feature is used to open and close the ball valve.

The utility model relates to the field of rainwater and sewage diversion devices, and discloses a rainwater and sewage diversion device for municipal engineering, which comprises a collecting device and two diversion devices, the two diversion devices are respectively arranged on two sides of the collecting device, the collecting device comprises a water collecting tank, and a limiting block is fixedly connected to the upper position of the inner side wall of the water collecting tank. A filter plate is arranged at the top end of the limiting block, handles are fixedly connected to the two sides of the top end of the filter plate correspondingly, connecting pipes are fixedly connected to the lower positions of the two sides of the water collecting tank correspondingly, and blow-off pipes are fixedly connected to the lower positions of the sides, close to the water collecting tank, of the two separation bins correspondingly; and drainage pipes are fixedly connected to the lower positions of the sides, away from the water collecting tank, of the two separation bins correspondingly. According to the rainwater and sewage diversion device for municipal engineering, the device is effectively cleaned through the collection device, and rainwater and sewage diversion is effectively achieved through the diversion device.

A wastewater pipe inspection device (1) comprising two suspension members (11, 11') rotatably mounted on opposite sides of the main body, each suspension member (11, 11') carrying at least one front wheel (10a, 10c) and one rear wheel (10b, 10d) on the same side of said device (1), and said suspension members (11, 11') being coupled such that the rotation of one suspension member (11) in one direction of rotation causes the other suspension member (11') to rotate in the opposite direction. Figure 1

The utility model relates to the technical field of drainage channel cleaning, in particular to an anti-blocking water conservancy drainage channel cleaning device which is used for cleaning the bottom of a drainage channel and comprises a mounting plate, a plurality of moving wheels are fixedly connected to the bottom end of the mounting plate, and an arc-shaped water collecting plate is fixedly connected to the top end of the mounting plate. The outer wall of the side, close to the arc-shaped water collecting plate, of the mounting plate is fixedly connected with an inclined plate. Moving wheels are arranged on a mounting plate and can move along the bottom of a drainage channel under the pushing of water flow; a large cleaning roller and a small cleaning roller are arranged, dirt at the bottom of a drainage channel can be automatically cleaned under driving of a water wheel, water flow is discharged from an inclined water pipe to impact the water wheel to rotate, the water wheel drives a connecting rod to rotate, the connecting rod drives a rotating rod to rotate through a first chain transmission structure, and the rotating rod drives the large cleaning roller to rotate to clean dirt. Meanwhile, the rotating rod drives the round rod to rotate through the second chain transmission structure, the small cleaning roller on the round rod further cleans dirt, and people do not need to go deep into the drainage channel for manual cleaning.