163results about How to "Achieve tightening" patented technology

The invention discloses a robot for installing a groove-type large-caliber pipeline connector in a deepwater complex environment. The robot is integrally shaped similarly as a portal crane; fixing side wings of the robot adopt openable and closable structures, open and close through clamping parts and clamp two pipelines to be connected around a connection point; mechanical arms of the robot form reciprocable movable connection with a screw sliding table. Due to adoption of a series of technical measures, the robot can connect horizontal pipelines and inclined or even vertical pipelines; the mechanical arms and the fixing devices of the robot can be flexibly adjusted according to pipe diameters of the specific connected pipelines, so that needs of connection construction of different models of connectors can be met; through coordination of an airbag and a driving propeller, adjustment on an underwater posture of the robot is achieved, so that the robot has relatively high mobility and flexibility; a main control device of the robot is arranged on a mother ship, so that the structure of an underwater working part is simplified.

The invention provides an overhead high-voltage power transmission line strain clamp drainage plate bolt tightening robot. The robot comprises a body, an inspection robot platform, a first working arm and a second working arm. The inspection robot platform comprises two fixed arms which are arranged at two sides of the body in a reverse symmetry manner at a fixed interval, each fixed arm is provided with a traveling part and a line clamping part, the traveling part is used for traveling along a wire line, the line clamping part is used for clamping the wire line and achieving positioning, and one side of the line clamping part is provided with an equipotential part which is used for making the robot and the wire line remain equipotential. The first working arm is arranged at a first side of the front end of the body, and the tail end of the first working arm is provided with a nut-screwing device. The second working arm is arranged at a second side, of the body, being opposite to the first side, and the tail end of the second working arm is provided with a bolt positioner. The robot can position bolts and tighten nuts, and is simple in abutting joint operations and high in efficiency, and can replace manual operation, and is safe and reliable, and is simple to operate.

The invention relates to a wearable device and a strap adjusting and locking mechanism thereof. The strap adjusting and locking mechanism comprises an adjusting buckle, an adjusting knob and two straps, and the adjusting buckle has an adjusting chute. At least one of the two straps is slidingly arranged in the adjusting chute, and the remaining strap is connected to the adjusting buckle in a matched way. The strap slidingly arranged in the adjusting chute is provided with a rack. The adjusting knob is rotatingly arranged to the adjusting buckle and includes a relatively rotatable button cap and a ratchet, one side of the ratchet away from the button cap is provided with a gear, the gear engages with the rack , and the two straps rotate in the same or opposite direction with the rotation ofthe gear. A limiting device for unidirectionally locking the ratchet is arranged between the ratchet and the adjusting buckle. The above strap adjusting and locking mechanism is mainly formed by three components, the structure is simple, the reduction of the failure rate is facilitated, the reliability is high, the repair is easy, the straps can be tightened or released by rotating the adjustingknob forward or reversely, the operation is convenient and quick, and the improvement of a user experience is helped.

The invention discloses a multifunctional local nursing anti-infection device. The multifunctional local nursing anti-infection device includes a fixing plate, a soft pad, an inflation balloon, a first flexible pipe, a three-way adjustment valve, an exhaust pipe, a filtering tank, a first filter element, an air inlet pipe, a first connection pipe, a first one-way valve, a fixing air cylinder, a micro motor, a rotation shaft, a cam, a piston, a spring, a filtering screen, a second connection pipe, a second one-way valve, a second flexible pipe, an air cushion ring, a fixing seat, an observation plate, a circulation chamber, air leakage holes, a discharging pipe, a filtering bag, and a second filter element. The multifunctional local nursing anti-infection device is skillful in structure, is powerful in function, can effectively protect a local wound of limbs of a patient from infection, can enhance local air circulation of a body of the patient through a simple operation according to the demands, can satisfy the nursing demands of different patients, can greatly facilitates the nursing operations of medical workers for the patients, and facilitates clinical promotion and application.

The invention discloses a tray for forklift transmission assembly. The tray is mainly formed by combining a main tray and an auxiliary tray, wherein the lower part of the main tray is provided with a double-layer horizontal rotating and positioning mechanism, and the upper part of the main tray is provided with a vertical rotating and positioning mechanism; and the auxiliary tray has a disc-shaped structure of which the diameter is the same as that of a flange disc on a transmission. The tray has the advantages of being wide in applicability, low in labor intensity, high in safety, high in efficiency and ensured in quality; the tray can be matched with assembly of five postures of multiple transmissions; the main tray and the auxiliary tray are matched, so that the transmissions can conveniently rotate along an axis of the flange disc, and the labor intensity is greatly reduced; the tray horizontally rotates, so that the forklift transmission operates on a single side is solved, and the position is not required to be changed back and forth; and due to the positioning function of the tray, online automatic press fitting, turning and screwing of the forklift transmission are guaranteed.

The invention provides a full-automatic automobile cover. The full-automatic automobile cover comprises a cloth cover body unfolding mechanism, a cloth cover body, a cloth cover body closing mechanism and cloth cover body auxiliary unfolding mechanisms, wherein the cloth cover body unfolding mechanism is installed on a roof of an automobile, the cloth cover body is fixedly arranged on the cloth cover body unfolding mechanism in a sleeved mode through a top sleeve opening, the cloth cover body closing mechanism is arranged on the cloth cover body unfolding mechanism, the cloth cover body auxiliary unfolding mechanisms are arranged on the cloth cover body unfolding mechanism and the cloth cover body closing mechanism, the cloth cover body is driven by the cloth cover body unfolding mechanism to be unfolded or folded, the cloth cover body closing mechanism is driven by the cloth cover body unfolding mechanism to close an opening formed in the lower end of the cloth cover body when an automobile body is covered with the cloth cover body, the cloth cover body auxiliary unfolding mechanisms smoothen the cloth cover body in the whole process so that the cloth cover body can be smoothly unfolded or folded, and the cloth cover body auxiliary unfolding mechanisms remove dirt on the cloth cover body when the cloth cover body is folded. According to the full-automatic automobile cover, the cloth cover body can be unfolded or folded, and when the cloth cover body is unfolded or folded, the cloth cover body can be smoothened so that the cloth cover body can be smoothly unfolded or folded; in addition, dirt on the cloth cover body can be removed in time during folding; besides, air is effectively prevented from entering the cloth cover body from the opening formed in the lower end of the cloth cover body.

The invention relates to the technical field of mounting and dismounting of large-torque threads, in particular to a hydraulic automatic nut screwing-unscrewing device for solving the nut screwing and unscrewing problem in engineering equipment. The device consists of two parts of a hydraulic pump station and an execution mechanism, wherein the hydraulic pump station is driven through a motor; the execution mechanism mainly comprises a two-way plunger motor, a hydraulic cylinder and a three-jaw chuck; a nut is locked through the cooperation between the extension of the hydraulic cylinder and the three-jaw chuck; the screwing-unscrewing of the nut is realized through the rotating torque of the hydraulic motor; and the energy conversion mode of the device is electric energy-mechanical energy-hydraulic pressure energy-mechanical energy.

The invention discloses a walking device of a ventilation pipeline cleaning robot. The walking device comprises a supporting structure, a maintaining structure, a driving structure and a control system. The supporting structure comprises a front supporting structure and a rear supporting structure, the maintaining structure comprises a front maintaining structure and a rear maintaining structure,one end of the front maintaining structure and one end of the rear maintaining structure are connected with the two ends of the driving structure, the other end of the front maintaining structure is connected with the front supporting structure, the other end of the rear maintaining structure is connected with the rear supporting structure, and the supporting structure, and the maintaining structure and the driving structure are connected with the control system through a signal transmission unit, and adopt motors to drive screw nut mechanisms to achieve walking and supporting of the cleaningrobot in a ventilation pipeline. The walking device has the enough large drive traction force, pipe diameter adaptation, pipe bending passing capacity and climbing capacity, and different work needs of various ventilation pipelines can be met.

The invention discloses a bendable LED (light emitting diode) module, which comprises an elastic part layer (20) and an adjusting part (30), wherein a plurality of light emitting assemblies are arranged on the elastic part layer (20), the adjusting part (30) is arranged at the back part of the elastic part layer (20), and is tensioned or supported at the two sides of the elastic part layer (20), and the elastic part layer (20) is bent in an inner arc or outer arc way. The bendable LED module has the advantage that after the elastic part layer (20) is bent and deformed, a larger clearance or gap between the light emitting assemblies is avoided, so the display effect is better.

The invention discloses an air conduit cleaning robot which comprises supporting structures, keeping structures, a driving structure, a cleaning assembly and a control system. One end of each supporting structure is connected with one end of the corresponding keeping structure. The keeping structures are connected with the driving structure. The cleaning assembly is installed at the front end of the front supporting structure. The supporting structures, the keeping structures, the driving structure and the cleaning assembly are connected with the control system through a signal transmission unit. Motor drive screw nut mechanisms are adopted for the supporting structures, the keeping structures and the driving structure correspondingly so that the robot can walk and be supported in conduits. The cleaning assembly cleans the inner walls of the conduits, and the air conduit cleaning robot has large enough driving traction force, pipe diameter adaptability, elbow passage capacity and climbing capacity and can meet the cleaning requirements of various air conduits.

The invention relates to a rapid clamping device. A pressing flange and a top plate are arranged on the two sides of a support respectively, one end of an ejector rod is rotationally connected with the top plate, the other end of the ejector rod is in threaded connection with a center pressing piece, a sliding ring copper sleeve sleeves the center pressing piece, a synchronous sliding ring which moves oppositely sleeves outside the sliding ring copper sleeve, a copper sleeve flange is arranged at the outer end of the sliding ring copper sleeve, a spring which sleeves the sliding ring copper sleeve is arranged between the synchronous sliding ring and the copper sleeve flange, and the two ends of the spring are respectively abutted against the synchronous sliding ring and the copper sleeve flange; the number of pull rods is multiple, the pull rods are uniformly distributed in the circumferential direction of clamping parts, one end of each pulling rod is hinged to the center pressing piece, the other end of each pulling rod is a pressing end, and the clamped parts are located between the compression flange and the compression ends of the pull rods; and connecting rods are connectedbetween each pull rod and the synchronous sliding ring, and the two ends of the connecting rod are respectively hinged to the pull rods and the synchronous sliding ring. The device has the advantagesof being novel in structure, simple and convenient to operate, small in size and the like.

The invention discloses an intelligent detection balance lifting mechanical arm device which comprises a base, a motion framework, a first supporting plate, a second supporting plate and a third supporting plate. A first servo motor is fixedly arranged above the center of the first supporting plate, and an output shaft of the first motor penetrates through the second supporting plate and is fixedly connected with the third supporting plate through a coupling. A stand column is fixedly arranged on the third supporting plate, a fifth supporting plate is fixedly connected to the top of the standcolumn, and a fourth supporting plate is further arranged between the fifth supporting plate and the third supporting plate. A direct current motor is fixedly arranged on the fifth supporting plate, an output shaft of the direct current motor is connected with a first lead through vertically and downwards through a coupling, and the first lead screw penetrates through the fourth supporting plate.A mechanical arm is fixedly arranged on the fourth supporting plate and comprises a horizontally-placed cross beam, a grabbing device arranged at one end of the cross beam and a balancing weight device arranged at the other end of the cross beam. The first lead screw penetrates through the cross beam, and a pressure sensor is arranged on the grabbing device. By means of the intelligent detection balance lifting mechanical arm device, the work efficiency and work quality of boxing or stacking of products in industrial production can be greatly improved; and through the balancing weight device,the situation that machine deformation and wear are caused due to uneven stress of the mechanical arm during work can be effectively reduced, the device can adapt to different grabbing environments, the weights of balancing weights can move intelligently, and automatic balancing of the mechanical arm can be achieved.

The invention relates to the technical field of environment-friendly equipment, and discloses an environment-friendly road cleaning vehicle with an adjustable cleaning range. The vehicle comprises a frame, wheels are movably connected to the left and right sides of the frame, a connecting plate is fixedly installed at the top of the frame, and a container is fixedly installed at the top of the connecting plate. According to the environment-friendly road cleaning vehicle with the adjustable cleaning range, a double-head hydraulic cylinder runs to drive connecting rods to move horizontally, ground cleaning brushes move left and right during ground cleaning accordingly, and the operation width of the ground cleaning brushes can be conveniently adjusted in the movement process of a vehicle body; meanwhile, a torsion spring has the functions of buffering and stabilizing the connecting rods during horizontal movement; driving motors rotate to drive first sleeve rods to rotate, the work of cleaning away road garbage by the ground cleaning brushes in the rotation process is achieved accordingly, the purpose that the width of the ground cleaning operation is adjustable is achieved, the ground cleaning efficiency is improved, the work time is shortened, and the environment-friendly road cleaning vehicle is convenient for a user to use.

The invention discloses a space load butt locking interface device capable of realizing emergency unlocking and locking instruction and belongs to the technical field of a space application device. The space load butt locking interface device comprises an active end and a passive end, which are fixedly connected with an exposure load and a spacecraft cabin exposure platform respectively. Through cooperation of a main locating pin of the active end and a main positioning hole in the passive end, a mechanical arm is guided to enable the exposure load to be butted to a position to be installed; through a screw rod of the active end, a frame A main body, a frame A branch body, a frame B main body and a frame B branch body are driven to move along a guide shaft to realize rigid locking of the exposure load; when the device cannot realize unlock through an electric mode, mechanical unlocking of the active end and the passive end is finished manually by operating an emergency unlocking fixation assembly of the active end; and the state of a locking mechanism is indicated through a position state indicating mechanism of the active end. The device can assist the mechanical arm to realize guiding positioning and butting, rigid locking and manual unlocking of the exposure load and a spacecraft cabin.

The invention discloses a micro power electric equipment rotating and hoisting device comprising a right-angle steel pipe frame, a moving pulley group, a rope and a drive mechanism. The right-angle steel pipe frame is composed of an upper rod and a vertical rod which are connected fixedly and is in an inverted L shape, the vertical rod is provided with a fastener, the upper portion of the tail end of the upper rod is provided with the drive mechanism, the middle of the upper rod is provided with the moving pulley group, one end of the rod is fixed to the upper rod, and the other end penetrates the moving pulley group to connect to the drive mechanism; the moving pulley group comprises five pulley lifting modules which are arranged in rows sequentially, one end of the rope of the last moving pulley lifting module is connected to a moving pulley lifting hook of the next moving pulley lifting module, and the tail end of the rope is connected to the drive mechanism. The device is small in size, is capable of being adaptive to the narrow operation environment, is capable of hoisting heavy objects on the condition that large-scale hoisting equipment is not easy to adopt and is worthy of promotion and application.

The invention discloses an automatic alignment device. The device comprises an axle box fixing and supporting hanging frame, a tightening axle fixing rotary box, an axle box servo driving motor, a tightening axle box real-time image pick-up position feedback module, a positioning device and a center control cabinet, wherein the axle box servo driving motor is connected with the axle box fixing andsupporting hanging frame and can drive the tightening axle fixing rotary box to rotate, the tightening axle box real-time image pick-up position feedback module is connected with the axle box fixingand supporting hanging frame and can shoot a hole site image of a wheel set moving under a sliding rail, the positioning device is connected with the axle box fixing and supporting hanging frame and can acquire the position information of the wheel set, and the center control cabinet matches the acquired actual hole site with the shot hole site image of the wheel set, and controls the axle box servo driving motor to act so as to realize the automatic alignment of the tightening axle fixing rotary box and the hole site of the wheel set. The invention further discloses an automatic alignment method. With the automatic alignment device of the invention adopted, addressing and positioning operation of multiple wheel sets are automatically completed, the automatic tightening operation of the wheel sets is achieved, manpower is saved, and operation efficiency and precision are improved.

The invention discloses a pressing mechanism, which is used for a note packaging device and leads a packaging film to wrap on packaged notes tightly. The pressing mechanism comprises at least one note pressing submechanism and at least one film-pressing submechanism, wherein the note pressing submechanism comprises a note pressing plate and a note pressing plate driving module for driving the note pressing plate to move up and down; the film-pressing submechanism comprises a film pressing plate and a film pressing plate driving module for driving the film pressing plate to move up and down; the film pressing plate is arranged on an area covered with the packaging film on the packaged note in a pressing manner; and the note pressing plate is arranged on an area uncovered with the packagingfilm on the packaged note, and can move up and down relative to the note pressing plate. The invention also provides a note packaging device with the pressing mechanism. According to the invention, the tightening of the packaging film and the surface flattening of the packaged notes are realized, the packing quality of the notes is improved, the safety for storage and transportation of the notes is improved, the economic and social benefits are obvious, the manufacturing cost is saved and the damage caused to the notes is avoided.

An electric wrench comprises a casing, a power component, a ratchet mechanism, a supporting transmission module and an open gear. A mounting part is formed at one end of the casing. The power component, the ratchet mechanism, the supporting transmission module and the open gear are sequentially connected and accommodated in the casing, a threaded part penetrates the mounting part to reach the open gear, the supporting transmission module is connected with the open gear and drives the open gear to rotate, and accordingly the threaded part is tightened or unscrewed. The electric wrench can be used conveniently under the conditions that some bolts are too long, pipe nuts are screwed or an operating space is narrow, the ratchet mechanism serves as a reversing transmission mechanism, and power is provided by a motor. In the use process, operators only need to place the threaded part in a sleeve of the open gear and then start the power jaw wrench, the threaded part can be tightened or unscrewed on the conditions that the casing does not need rotating, and the electric wrench is simple and convenient to operate, small in working strength and high in working efficiency.

The invention relates to a structure for heat radiation of a battery module and installation and fixation of electrical cores. The structure comprises a bottom support which is in the structure of anopen-ended case; the battery module comprises a plurality of batteries arranged in parallel; two sides of the batteries are provided with bracing frames; locking screws are arranged between the bracing frames at two sides of the batteries; an isolation framework is arranged between every two adjacent electrical cores; the coupling ends of the bracing frames and the bottom support are provided withstrip-like trough plates; the lower plate surface of the bottom support is provided with a heat radiation plate; the edge of the heat radiation plate is provided with installing holes used for fixation with the chassis of an automobile; and second isolation frameworks are arranged between the bracing frames and the electrical cores. According to the invention, the lower plate surface of the bottom support of the battery module is provided with the heat radiation plate which can improve the heat radiation efficiency of the battery module; second installing holes in the connecting trough platesfacilitate insertion of a socket wrench into the second installing holes for connection with fastening bolts, so the fastening bolts can be tightly screwed, and operation is convenient; and the structure can ensure the firmness of electrical core installation.

The invention discloses a tensioning machine capable of withdrawing tapes automatically. A fixing shaft and a shaft sleeve are arranged in a groove in a base, wherein the ends of the two sides of the shaft sleeve are each sleeved with a ratchet wheel, and the shaft sleeve can rotate around the shaft. A coil spring is arranged at one side of the base. The end of one side of a rotating shaft penetrates a side wall part corresponding to the rotating shaft and is connected with the end of one side of the coil spring. A pawl is arranged between the shaft sleeve and the fixing shaft, wherein the pawl is hinged to the pair of side wall parts of the base. The fixing shaft is provided with a torsional spring, wherein the torsional spring always drives the pawl to be engaged with the pair of ratchet wheels without being influenced by any external acting force. A locking plate is arranged between the ratchet wheel at any side and the side wall part corresponding to the ratchet wheel, wherein each locking plate is movably connected to the rotating shaft in a sleeving manner. A first protruding part is arranged at one side of each locking plate, wherein each first protruding part is used for driving the pawl to break away from the pair of ratchet wheels when the corresponding locking plate rotates. A protective shell used for sealing the base and the coil spring is further arranged outside the base. The end of the other side of the coil spring is fixed to the protective shell. By means of the tensioning machine, the technical effect that the service life of the tensioning machine capable of withdrawing the tapes automatically is prolonged is achieved; and the tensioning machine has the beneficial effect of being long in service life.

The invention discloses dismounting and tightening equipment for a valve connecting bolt. The dismounting and tightening equipment comprises a workbench, a stand column, a movable connecting arm, a solid wrench connecting device, a rotating device, and a pressing device. The stand column and the rotating device are installed on the workbench. The movable connecting arm is connected with the stand column and the solid wrench connecting device. The pressing device is installed on the rotating device; a valve is arranged on the rotating device; and the rotating device enables the valve to rotate in the axial direction of the rotating device. The movable connecting arm comprises a shell, a lead screw, a sliding block, a hinge lug, and a first hydraulic cylinder. Two ends of the lead screw are rotationally connected with the stand column; the sliding block is in threaded connection with the lead screw; one surface, far away from the lead screw, of the sliding block is fixedly connected with the hinge lug; a first hydraulic cylinder is installed in the shell; and a piston rod of the first hydraulic cylinder is connected with the solid wrench connecting device. According to the dismounting and tightening equipment for the valve connecting bolt, aiming at the conditions that the positions of connecting bolts of many valves are narrow and the space is limited, the bolts can be automatically tightened and disassembled, and the device can be suitable for valves of different specifications.

The invention discloses a slope protection wall for water conservancy projects, which includes a base, a slide rail is fixedly installed above the base, and a slide block is slidably connected to the outside of the slide rail, and two sets of locking blocks are arranged on the slide block. A connecting port is fixedly installed on the locking block, and the limiting rod is inserted through the connecting port. There are several clamping installation grooves installed on the surface of the base for the limiting rod to pass through the locking block under the slide rail. A casing is connected above the slider, and a telescopic tube is inserted in the casing, and a mounting block is fixedly connected above the telescoping tube, and a limit baffle is fixedly installed on the side of the mounting block, and the limit baffle A connecting rod head is connected on the plate. The invention realizes the adjustment of the angle of the revetment wall through the left and right sliding of the slide rail of the base, and the revetment wall can be freely disassembled from the support rod, which greatly facilitates the use of the user, and provides the user with a detachable, free Slope protection walls for water conservancy projects that adjust slopes.

The invention discloses textile printing and dyeing equipment and an application method thereof, and belongs to the technical field of textile printing and dyeing equipment. The textile printing and dyeing equipment comprises a shell, a drying box, a printing and dyeing box and textiles. The drying box is fixedly arranged on the top wall of the front end of the shell, and the printing and dyeing box is fixedly arranged on the bottom wall of the rear end of the shell; a first guide roller shaft, a second guide roller shaft, a third guide roller shaft and a fourth guide roller shaft are furtherincluded, the first guide roller shaft and the second guide roller shaft are arranged on two sides of the drying box, and the third guide roller shaft and the fourth guide roller shaft are placed on two sides of the printing and dyeing box. A winding mechanism is further fixedly arranged on the side wall of the fourth guide roller shaft, and the winding mechanism comprises a first winding roller shaft and a second winding roller shaft. According to the textile printing and dyeing equipment and the application method thereof, the winding mechanism and a driving mechanism are arranged, the driving mechanism is used for driving the winding mechanism to work, the winding mechanism then tightly supports and squeezes the textiles through a winding soft block, while the textiles are combed and flattened, the residual dye liquor on the textiles is filtered out, and the filtered dye liquor can flows back to inside of the printing and dyeing box through a recycling hopper.

The invention discloses an automatic screw turning machine, and relates to the field of automatic equipment. The automatic screw turning machine comprises a rack, an adjusting plate, an air cylinder, an electric fixed twisting screwdriver, a twisting force inductor, a screw rod, a clamp, a channel, a screw feed mechanism, a feeding device and a screw seat turn-around device. The adjusting plate is arranged on the rack and connected with the air cylinder. The electric fixed twisting screwdriver is fixedly connected with the adjusting plate through a fixed clamp of the adjusting plate, a motor is arranged in the electric fixed twisting screwdriver, and the lower portion of the electric fixed twisting screwdriver is connected with the screw rod. The screw rod is connected with the twisting force inductor, the lower portion of the screw rod is connected with the clamp, and a screw inlet is formed in the upper portion of the clamp and communicated with the channel. The screw feed mechanism is arranged at the top end of the channel, the channel is connected with the feeding device at the same time, and the screw seat turn-around device is arranged at the front end of the feeding device. The automatic screw turning machine has the beneficial effects that the function of integrating feeding, automatic turning, locating and screwing down of a screw can be achieved, the screw running channel is smooth and not prone to being damaged, and full-automatic operation is achieved.

The invention relates to an assembled type pier outer wall cleaning device, and belongs to the technical field of cleaning devices. The device comprises an annular guide rail arranged on the outer side of the circumference of a pier, a cleaning machine which is connected with the annular guide rail through a rail and a stabling and supporting structure used for fixing and supporting the annular guide rail in the middle of the pier, wherein the cleaning machine can rotate around the pier along the annular guide rail, the stabling and supporting structure comprises a supporting ring, a supporting rod, an air bag and an inflation device connected with the air bag, the supporting ring is arranged on the outer side of the circumference of the pier and is fixedly connected with the annular guiderail through a support, the supporting ring and the annular guide rail are horizontally arranged, and the diameter of the annular guide rail is larger than that of the supporting ring. The device canbe used for cleaning the outer wall of the assembled pier, so that the residual of corrosive substances is reduced, the corrosion and permeation of the corrosive substances on the outer wall of the pier are reduced, and the service life of the pier is guaranteed.