27 results about "Power component" patented technology

The application relates to the field of power supplies, and discloses an uninterruptible power supply, which comprises a first power board, a liquid cooling plate, a second power board, a first power device group arranged on the first power board, and a second power device group arranged on the second power board; the liquid cooling plate is arranged between the first power board and the second power board and is used for heat dissipation of the first power device group and the second power device group; the liquid cooling plate comprises an inlet, an outlet and a cooling flow channel communicated between the inlet and the outlet, and the cooling flow channel is used for containing cooling liquid; the first power device group and / or the second power device group comprises temperature-sensitive components and a plurality of power components; along the flow direction of the cooling liquid in the cooling flow channel, the plurality of power components are located in front of the temperature-sensitive components. The application gives priority to heat dissipation of the temperature-sensitive components with high temperature sensitivity to ensure the service life of the entire uninterruptible power supply, and then heat dissipation is performed on other power components, so that liquid cooling heat dissipation of all the power components is considered.

The utility model provides a cleaning assembly and cleaning equipment, and relates to the technical field of cleaning assemblies. The cleaning assembly comprises a fixing frame, a swinging arm and a power assembly; the fixing frame is configured to be connected with a main body of the cleaning equipment, and the wall surface of the fixing frame is provided with a catering surface; the swinging arm is rotationally connected with the fixing frame, and the swinging arm is provided with a cleaning piece capable of rotating; the power assembly drives the cleaning part to rotate, and the power assembly drives the swing arm to rotate relative to the fixing frame so as to drive the swing arm to move between the retracting position and the stretching position; the output end, driving the swing arm to rotate relative to the fixing frame, of the power assembly comprises a friction wheel. The cleaning assembly comprises the fixing frame and the swing arm which can rotate relatively, the power assembly drives the fixing frame and the swing arm to rotate relatively, the cleaning range of the cleaning part is changed, the cleaning range is increased, cleaning blind areas are reduced, and the cleaning effect is improved.

The utility model discloses a kind of shore power pit guide cone cutting device, it is related to guide cone cutting technical field.The utility model includes support frame, and further include: cutting part, the cutting part is installed on support frame;Clamping part, the clamping part is set on support frame;Buffer part, the buffer part is provided with two, two the buffer part is installed on clamping part, two The buffer part is mirror image setting;The clamping part includes power component, and the power component is installed on the bottom of support frame;And fixed component, the fixed component is set on the top of support frame;The power component includes respectively fixedly connected in the hinge block of the front side and rear side of support frame.The utility model is fixed by setting clamping part, solved the existing cutting device in use process, it is inconvenient to fix guide cone, leading to guide cone to appear in processing process Shaking or displacement, thereby reduce the quality of guide cone processing, the problem of the efficiency of guide cone cutting is affected.

This utility model belongs to the field of building exterior wall insulation layer construction technology, and discloses a building exterior wall insulation layer construction device, including two sets of hanging rails, with a lifting component between the two sets. The lifting component is equipped with a lifting platform that can move up and down, and a power component that drives its operation is set below the lifting component. A spraying component is set above the lifting platform. A guide groove is opened on the inner side of the hanging rail, and a hoop groove is set on the side of the guide groove away from the center. A tooth avoidance groove and an equidistant toothed plate are set inside the hoop groove. The lifting component includes a lifting platform, a structural shell, four sets of guide sliders, and two sets of geared discs. The power component includes a rotating shaft, a large gear, a small gear, and a servo motor. This utility model has a compact and reasonable structural design, which enables the lifting platform to move up and down between the two sets of hanging rails, and can drive the spraying component above to carry out the spraying operation of the building exterior wall insulation layer. The device has a stable structure, long service life, and a wide range of vertical movement, and has certain practicality.

The utility model relates to the technical field of gear machining, in particular to a burr cleaning mechanism for gears, which comprises a bottom plate, a hollow column is fixedly connected to the middle of the top end of the bottom plate, a power component is fixedly connected to the inner bottom wall of the hollow column, and a bearing plate is fixedly connected to the top end of the power component. A limiting column is fixedly connected to the middle of the top end of the bearing plate, sliding grooves are formed in the two sides of the surface of the limiting column, and sliding frames are slidably connected into the sliding grooves. When the gear polishing device is used, a gear body needing to be polished can penetrate through the limiting column to be placed on the bearing plate, then the circular plate with the sliding frame is connected with the limiting column, the circular plate is tightly attached to the gear body under the cooperation of the limiting column, then the fixing bolt is rotated, the fixing plate extends out of the fixing cylinder to make contact with the limiting column, and the gear body is polished. And the position of the sliding frame on the limiting column is fixed, so that the position of the gear body is fixed through the bearing plate and the circular plate, and the effect of fixing gears with different thicknesses is achieved.

The utility model discloses a liquid cooling ACDC power module, comprising a substrate, one side of the substrate is provided with a plurality of power components, the outer sides of the plurality of power components are slidably sleeved with a liquid cooling plate, the interior of the liquid cooling plate is provided with a circulating liquid cooling cavity, the two ends of the liquid cooling plate are longitudinally inserted with longitudinal supports through screws, and the lower ends of the longitudinal supports are provided with lower supports. A plurality of power components are slidably sleeved with a liquid cooling plate, a circulating liquid cooling cavity is formed in the liquid cooling plate, two transverse supports and an installation clamping block are transversely inserted in a sliding groove in the lower support, a lead screw is rotationally arranged in the middle in the sliding groove, and one ends of the two transverse supports are both in threaded connection with the lead screw. When cooling liquid is circularly conveyed into the circulating liquid cooling cavity, water cooling heat dissipation treatment can be performed on the exteriors of the power components, the heat dissipation effect is good, the liquid cooling plate covers the exteriors of the power components, certain anti-collision protection treatment can be formed, and meanwhile, the stability of the power components installed on the substrate can be improved.

The utility model relates to the technical field of electrical engineering, in particular to a line winding device for electrical engineering, which comprises a bearing plate, and one side of the top end of the bearing plate is fixedly connected with two supporting plates. Through the arrangement of the first power assembly, the cleaning assembly, the electric sliding block and the electric sliding rail, a cable can penetrate through the cleaning cylinder to be wound on the winding and unwinding column in the using process, and then a first servo motor and the electric sliding rail in the first fixing frame are started in sequence through an external power source; a first transmission rod on a first servo motor drives a first gear on a connecting column to rotate, so that a second gear drives a cleaning cylinder to rotate, and stains on the surface of the cable are cleaned by using an elastic cleaning brush in the cleaning cylinder; and then in the winding process, the position of the protection shell can be adjusted according to the winding condition of the cable on the winding and unwinding column through cooperation of an electric sliding rail and an electric sliding block, so that the cable is wound on the winding and unwinding column in order, and the effect of improving the winding quality is achieved.

The invention discloses a tea garden operation robot leg adjusting and locking component, and relates to the technical field of robot leg height adjusting.The tea garden operation robot leg adjusting and locking component comprises a connecting frame, and a rod body is arranged in the connecting frame in a sliding mode; the two grooves are formed in the two side walls of the rod body; and the locking assembly is arranged on the inner wall of the connecting frame. When the ground clearance of the rod body is adjusted, the control assembly drives the locking assembly and the adjusting assembly to change states at the same time, that is, limitation of the rod body and the connecting frame is relieved, and the meshing state of the adjusting assembly and the two rack plates is changed, so that when limitation is relieved, through the effect of the adjusting assembly, the rod body can be locked. The rod body is driven to slide along the connecting frame, during locking, the limiting assembly limits the state of the connecting frame and the rod body, and at the moment, the adjusting assembly does not make contact with the two rack plates, so that a power component of the adjusting assembly is prevented from being affected in the non-working state, and then the precision of the power component of the adjusting assembly is guaranteed.

The application discloses a kind of energy-heat integrated systems of multiple power source electric drive and its collaborative intelligent control method, energy-heat integrated system includes range extender loop, electric drive electric control loop, battery loop, heating and heating loop, air conditioning cooling and heat exchange loop and eight-way valve;Collaborative intelligent control method is: according to the importance of each power component selects thermal evaluation index, subjective evaluation and objective evaluation respectively through engineering experience, sample data determine the weight of each thermal evaluation index, after twice weighting, the comprehensive weight of each index is determined, and a thermal evaluation function is established;Combining thermal evaluation function and the energy consumption of each working component, the fuel economy and the working state of each component are comprehensively considered, and a target optimization function is established;Then, according to sample data and physical model, predictive modeling is carried out, model predictive control is used, and the optimal control amount when the target optimization function is minimized is solved, so that the tractor can reach the highest energy utilization and the best overall working performance.

The present disclosure relates to the field of power supply and an uninterruptible power supply is disclosed. The uninterruptible power supply includes a first power board, a liquid cooling plate, a second power board, a first set of power devices arranged on the first power board, and a second set of power devices arranged on the second power board; the liquid cooling plate is stacked between the first power board and the second power board, and is configured to dissipate heat from the first set of power devices and the second set of power devices; the liquid cooling plate comprises an inlet, an outlet, and a cooling passage communicating the inlet and the outlet, and the cooling passage is configured to accommodate a coolant; and the first set of power devices and / or the second set of power devices includes a temperature-sensitive component and multiple power components, and the multiple power components are located in front of the temperature-sensitive component along a flow direction of the coolant in the cooling passage. In the present disclosure, heat dissipation for the temperature-sensitive component with higher temperature sensitivity is prioritized to ensure a service life of the uninterruptible power supply, and then heat dissipation of other power components is performed, so that liquid cooling for all power components is suitably considered.

The utility model relates to the technical field of activated carbon screening, and discloses an activated carbon screening mechanism which comprises a base, elastic assemblies are arranged on the top of the base, and a screening box is fixedly connected to the top ends of the elastic assemblies. A shape plate is fixedly mounted at the top of the base, a box body is fixedly mounted at the top of the shape plate in a penetrating manner, a discharging box is fixedly mounted at the bottom of the box body, a rectangular block is slidably connected to the interior of the discharging box, a connecting rod is fixedly mounted on one side of the rectangular block, and one end of the connecting rod penetrates through the discharging box and is fixedly connected with a hollow plate; a power assembly is arranged on the inner wall of the top of the shaped plate and makes contact with the hollow plate, the power assembly, the hollow plate, a connecting rod and a rectangular block are arranged, the power assembly drives the hollow plate to move in a reciprocating mode, the hollow plate drives the rectangular block to move in a reciprocating mode through the connecting rod, and activated carbon is intermittently added into the screening box; therefore, activated carbon on the screening plate can be screened out smoothly, blocking is avoided, and the screening efficiency is ensured.

The utility model belongs to the technical field of folding beds, and particularly relates to a self-locking type folding bed which comprises a first supporting plate and a second supporting plate and further comprises two fixing plates, the two fixing plates are fixedly installed at the bottom of the first supporting plate and the bottom of the second supporting plate respectively, and the second supporting plate is rotationally connected with the first supporting plate. Sliding plates are arranged at the bottoms of the two fixed plates; the sliding groove is formed in the first supporting plate, a first limiting strip and a second limiting strip are installed in the sliding groove in a sliding mode, and the first limiting strip and the second limiting strip are both matched with the second supporting plate in an inserted connection mode; the two power assemblies are located in the two fixing plates correspondingly and used for driving the two sliding plates to slide correspondingly. The driving assembly is located in the first supporting plate; operation is easy and convenient, the fixing effect is good, the whole device cannot be loosened after being fixed and in use, meanwhile, the height of the whole device can be adjusted, and people of different heights can use the device conveniently.

The utility model belongs to the technical field of oil field wellhead operation equipment, and particularly relates to a linkage pressing type tong head reversing mechanism and a pair of power tongs. The pressing rod intermittently abuts against a pressing plate located at the end of the power piece, the guide piston slides in an inner cavity of the shell, the plug pin alternately slides in an arc groove of the tong head, and a linkage mechanism is formed by a connecting rod, the guide piston and the pressing rod, and the connecting rod is hinged to the lower end of the shell and slides on the outer side of the guide piston in a hinged mode. According to the utility model, the problem of inaccuracy or instability of bolt transposition is solved, the number of quick-wear parts is reduced, the operation is more convenient, the failure rate and the maintenance cost caused by a complex structure are reduced, and manual operation of the bolt or a reset knob is not needed, so that the operation time and the labor cost are obviously reduced, and the working efficiency is improved. The production efficiency of oil field wellhead operation is improved, and the actual requirement for diversification of the oil field wellhead operation is met.

The application discloses a forklift capable of adjusting the posture of goods and a use method thereof, and relates to the technical field of forklifts. The forklift comprises a forklift body, a telescopic arm arranged on the forklift body, a goods fork arranged on the telescopic arm, and a gravity center adjusting mechanism arranged between the telescopic arm and the goods fork. The gravity center adjusting mechanism comprises a connecting arm rotatably connected to the end of the telescopic arm, wherein the rotating axis of the connecting arm is arranged along the length direction of the telescopic arm, and the goods fork is connected to the connecting arm. The gravity center adjusting mechanism further comprises a support and a supporting seat. The support is fixedly arranged on the connecting arm, the end of the telescopic arm is fixedly connected with the supporting seat, a power component one is arranged between the support and the supporting seat, the two ends of the power component one are hingedly connected to the support and the supporting seat, and the power component one is telescopic to drive the connecting arm to rotate. The gravity center adjusting mechanism is arranged to keep the goods in a horizontal state when the forklift body is used to transport goods along a slope in an S-shaped mode, thereby solving the problem that the goods are prone to tilting and falling when the goods are transported on a slope.

The utility model relates to the technical field of new energy automobiles, and discloses an anti-misplug and anti-dislocation type water cooling joint convenient to install, which comprises a pipeline I and a pipeline II, accommodating shells are fixedly connected to the front side and the rear side of the exterior of the pipeline I, and a cavity I is formed in each accommodating shell; first limiting plates are slidably connected into the two first cavities, the far sides of the two first limiting plates are fixedly connected with power assemblies used for driving the first limiting plates to move, the power assemblies are sleeved with first springs, and the far sides of the two first limiting plates are fixedly connected with sliding plates. According to the pipeline installation device, after the clamping plate moves to a proper position, the pulling rod is loosened, the sliding plate can prevent the clamping plate from sliding out of the interior of the containing shell under the reset acting force of the first spring, and therefore the first pipeline and the second pipeline can be rapidly installed, and the device is convenient to use.

The utility model belongs to the technical field of negative pressure suction cups, and particularly relates to a combined type pressure maintaining and releasing structure for a negative pressure type climbing suction cup, the pressure maintaining and releasing structure is divided into two states during use, during pressure maintaining, a trigger component drives a control component to be disconnected, at the moment, the control component is disconnected with a power component, and the power component is connected with the negative pressure type climbing suction cup. The first pressure relief hole is sealed through the pressure relief and pressure maintaining component, meanwhile, the pressure relief and pressure maintaining component is prevented from moving through the arrangement of the limiting component, the first pressure relief hole is always in a sealed state, pressure relief of the negative pressure suction cup caused by mistaken touch of workers is avoided, and the safety of the workers is guaranteed. During pressure relief, the triggering component drives the control component to be closed, the control component is connected with the power component, meanwhile, the limiting component does not stop the pressure relief and pressure maintaining component from moving any more, the control component controls the power component to move so that the first pressure relief holes can be opened, pressure relief is completed, the multiple first pressure relief holes are formed, the pressure relief speed is high, and the climbing operation time is shortened.

The embodiment of the utility model provides a vehicle frame platform and a vehicle, and belongs to the technical field of vehicle parts, the vehicle frame platform comprises a front-section longitudinal beam, a power component and a rear-section longitudinal beam, the power component comprises an assembly shell and a power piece arranged in the assembly shell, and one side of the assembly shell is connected with the front-section longitudinal beam; and the rear-section longitudinal beam is connected with the side, away from the front-section longitudinal beam, of the assembly shell, so that the front-section longitudinal beam, the power component and the rear-section longitudinal beam are sequentially connected in the longitudinal direction of the vehicle. According to the vehicle frame platform, the front-section longitudinal beam, the power component and the rear-section longitudinal beam are sequentially connected in the longitudinal direction of the vehicle, so that the power component is directly integrated on the vehicle frame without a mounting bracket, the number of connecting components is reduced, the assembly process is simplified, and the production efficiency is improved.

The present application relates to bridge rotation construction technology field, disclose a kind of big torque ultra-low speed rotation power system, comprising: lower turntable, the upper turntable is provided at the top of lower turntable;Rotation assembly, including several trusses and several rotation parts, several The truss is equidistantly arranged in circumferential direction at the top of lower turntable, several The rotation part is respectively arranged on several trusses, rotation part is connected with the outer side wall of upper turntable for driving the rotation of upper turntable;Power component, including several power parts and several restraint devices, the power part is arranged on the truss and is transmissionally connected with the rotation part, the restraint device is arranged on the truss for restricting the movement of power part, rack ball head fixing device is provided on power part.The present application is simple, saves expense, can satisfy the characteristics of bridge rotation tonnage, low speed, and save construction space, facilitate movement, construction technology is simple, solve the problem of bridge rotation super-rotation angle, can be reused.

The utility model relates to the technical field of fire extinguishers, and discloses an automatic feeding and discharging convex ring extruding machine which comprises a machine body, an extruding assembly, an opening and closing mechanism and a pushing assembly are sequentially arranged at the upper end of the machine body from left to right, and a pipe fitting conveying channel and a pipe fitting output channel are fixed to the upper end of the machine body. An output hole for outputting a pipe fitting is formed in the side wall of the pipe fitting conveying channel, a clamping assembly is arranged above the opening and closing mechanism, a positioning assembly is arranged on the side wall of the opening and closing mechanism, the opening and closing mechanism comprises two first clamping blocks, two opening and closing assemblies and a power assembly, and a containing groove matched with the pipe fitting is formed in the upper end of each first clamping block; a sliding block is fixed to the lower end of the first clamping block, a sliding groove matched with the sliding block is formed in the upper end of the machine body, by arranging the pushing assembly and the opening and closing mechanism, automatic feeding and discharging operation of the pipe fittings can be achieved, the problem that in the prior art, the pipe fittings need to be manually placed and taken out is solved, and therefore the production efficiency is improved; and the safety of the device is improved.

This utility model discloses an environmentally friendly glue extrusion device, belonging to the field of glue processing technology. Its key technical features include a U-shaped frame with a conveying mechanism inside. Two U-shaped guide frames are fixedly connected to both sides of the U-shaped frame, and a C-shaped movable frame is slidably connected within the two U-shaped guide frames. A vertical plate is fixedly connected to one end of the upper horizontal plate of the C-shaped movable frame. This utility model uses a first motor to drive a rotating plate and a transmission rod, causing the two C-shaped movable frames to slide synchronously along the U-shaped guide frames. Only one set of power components is needed to achieve symmetrical clamping of the storage bottle by the clamping plate, reducing the number of power components, lowering equipment manufacturing costs and energy consumption, avoiding the problem of asynchronous clamping caused by different responses of multiple sets of power components, effectively preventing the storage bottle from tilting or shaking, reducing glue leakage, and improving processing stability and glue utilization.

The utility model discloses an aluminum shell rivet mounting mechanism, which belongs to the field of aluminum product processing, and comprises a workbench, a placing groove is arranged at the top of the workbench, an extrusion mechanism is arranged above the workbench, the extrusion mechanism comprises a pressing plate, a forming groove is arranged at the bottom of the pressing plate, an auxiliary mechanism is arranged above the pressing plate, and the auxiliary mechanism comprises a mounting plate. The mounting plate is mounted at the top of the pressing plate through a guide assembly and slides up and down, a pressing rod is fixedly connected to the bottom of the mounting plate, a containing hole communicated with the forming groove is formed in the top of the pressing plate, a part of the pressing rod is located in the containing hole, a spring is fixedly connected between the mounting plate and the pressing plate, and the auxiliary mechanism further comprises a power assembly. The riveting device has the beneficial effects that after the tip end of the rivet is extruded to a certain degree, the power assembly drives the pressing rod to move downwards to extrude the rivet, so that the side wall of the rivet extends outwards and deforms, the close fit between the rivet and a workpiece mounting hole is improved, and the mounting and fixing effects are improved.

The utility model belongs to the technical field of steel reinforcement cage seam welder, and disclose numerical control steel reinforcement cage seam welder, including base, the inside fixed setting of base is provided with the fixed frame, the outside of fixed frame is provided with power component, power component includes the double -end motor fixedly set in the fixed frame, the main shaft end fixed setting of double -end motor has main gear, the outside of main gear is meshed with from gear, the outside fixed setting of from gear has screw rod, the outside screw thread connection of screw rod has sliding block, and sliding block is in the inside sliding of base, sliding block includes the occlusion block of screw thread connection with screw rod, the outside fixed setting of occlusion block has fixed base, through above -mentioned scheme, solved the problem that the seam welder cannot adjust itself according to the length of reinforcement, adjust the welding range of itself to adapt to a variety of reinforcement, improve the adaptability and practicality of device, also improve work efficiency.

This invention belongs to the field of concrete testing technology, and specifically relates to a concrete quality testing device for building engineering. It includes a base, a gantry frame mounted on the base, a lifting drive unit installed within the gantry frame, and a lifting plate connected to the lifting drive unit. A centering clamping assembly is connected to the lifting plate via a tension sensor. A centering clamping assembly is also mounted on the base. The centering clamping assembly includes support seats mounted on the tension sensor and the base, and multiple telescopic centering sleeves mounted on the support seats and interlocking with each other. The movable clamping assembly includes a movable disc mounted outside the outermost centering sleeve, multiple sets of power components mounted on the movable disc, a movable strip connected to each set of power components, and a clamping plate mounted at the end of the movable strip. This invention enables rapid centering and clamping of specimens of different sizes, thereby improving the accuracy of concrete tensile strength quality testing.

The application provides a kind of installation device of power engineering high voltage cabinet, it relates to the field of power high voltage cabinet installation.The installation device of power engineering high voltage cabinet, including equipment main body frame, power component, stable carrying unit and hoisting unit, power component is installed at the bottom of equipment main body frame for supporting and transferring equipment main body frame, hoisting unit is installed at the top of equipment main body frame.The installation device of power engineering high voltage cabinet, two equipment are used simultaneously, can be used power component is close to the two sides of power high voltage cabinet, using stable carrying unit can hold power cabinet from below, and also can exert pressure on the side to protect the side of high voltage cabinet, cooperate with the hoisting of upper side, can realize that upper, middle and lower all protect power cabinet, so it is more stable when transferring, because multiple sliding type lifting devices are arranged on the upper side, therefore, single lifting lug, multiple lifting lug power cabinet is also applicable, therefore, stability is better, and transferring power cabinet is safer.

This invention discloses a composite deformable walking robot, belonging to the field of robotics technology. It includes a robot body and multiple composite legs at its four corners. The robot body comprises a housing, a drive assembly, and a control system. The control system is used for positioning, detecting the surrounding environment, and controlling the drive assembly. The front and rear housings of the housing are connected by an intermediate connector. Both the front and rear housings are externally fitted with shells. The drive assembly includes drive components and power components. Two sets of drive components are respectively located inside the front and rear housings, and the power components are housed within the composite legs. The control system enables positioning, environmental detection, and control of the drive and power components. The drive components drive the composite legs to swing back and forth for legged walking, while the power components drive the composite legs to extend and retract for wheeled or tracked walking. This invention utilizes the advantages of legged traversal capability, wheeled low-damage locomotion, and tracked high stability, improving the applicability of walking through flexible transformation between legged, tracked, and wheeled locomotion.

The utility model relates to particle specification screening equipment for special rotational molding materials, which comprises a base, a power component arranged on the upper surface of the base, a rotating shaft connected to the output end of the power component, a connecting body integrally arranged at the upper end of the rotating shaft, a convex shaft arranged on the edge of the upper surface of the connecting body, and a vertical rod connected to the convex shaft through a bearing. A screening assembly is integrally arranged at the upper end of the vertical rod, an extension section is integrally arranged on the side face of the vertical rod and connected with a swing rod through a universal ball head, a U-shaped plate is integrally arranged at the free end of the swing rod, a guide column is arranged on the base, an arc-shaped sliding groove is formed in the upper end of the guide column, and a pin body is inserted between two lug plate sections of the U-shaped plate in a penetrating mode. Due to the cooperative arrangement of the screening assembly, the connecting body and the oscillating rod, rotational molding particles are filtered through the screen in the oscillating process of the screening box and are discharged through the discharging port at the same time, so that the rotational molding particles meeting the technological requirements in size are screened out, the machining effect is improved, and the rotational molding particle screening device is suitable for industrial production and has very high practicability.

The utility model provides a cleaning assembly and cleaning equipment, and relates to the technical field of cleaning assemblies. The cleaning assembly comprises a fixing frame, a swing arm and a power assembly. The fixing frame is configured to be connected with a main body of the cleaning equipment, and a first rotating shaft is arranged on the fixing frame; the swinging arm is rotationally connected with the fixing frame through the first rotating shaft, and a rotatable cleaning piece is arranged on the swinging arm; the power assembly drives the cleaning part to rotate, and the power assembly drives the swing arm to rotate relative to the fixing frame so as to drive the swing arm to move between the retracting position and the stretching position; the first rotating shaft is independent of the power assembly. The power assembly drives the fixing frame and the swing arm to rotate relatively, the cleaning range is enlarged, cleaning blind areas are reduced, and the cleaning effect is improved. The first rotating shaft is independent of the power assembly, so that the arrangement flexibility and compactness of the power assembly are improved.