75results about How to "Center of gravity balance" patented technology

A disclosed cell box convenient for cell installation positioning and with a damping mechanism comprises a cell box main body, an electro-insulating rubber gasket and an upper cover; the interior of the cell box main body is provided with an installation positioning assembly, and the exterior of the cell box main body is provided with the damping mechanism; the installation positioning assembly comprises a plurality of welding small supports, metal draw hooks, hook cushion blocks and installation nuts; the damping mechanism comprises a plurality of installation supports, annular rubber sleeves and steel pin bushes; the installation supports are welded at the outer walls of the side plates of the cell box main body; each installation support is provided with an installation hole; and one annular rubber sleeve with big top and small bottom is installed in the installation hole, and the center of the annular rubber sleeve is provided with the steel pin bush by interference fit. The beneficial effects of the cell box comprise that: the cell box is reasonable in structure and convenient for cell installation, and cells are fixed firmly; the cell box not only is capable of realizing rapid installation positioning, but also is capable of ventilating and dissipating heat; the cell box is electro-insulated, waterproof, safe and reliable; and the cell box is provided with the damping mechanism, is fast in replacing time, is beneficial to the gravity center balance of vehicles, and the production cost is relatively ideal.

The invention discloses an electric paying-off automobile, and belongs to the technical field of electric winding-up and paying-off devices of cables. The electric paying-off automobile is flexible to move and convenient to use. According to the technical scheme, the electric paying-off automobile comprises an automobile frame, a triangle supporting frame, a cable wheel, hydraulic jacks and a hydraulic drive device; the triangle supporting frame is hinged to the tail end of the automobile frame through a supporting rod; the number of the hydraulic jacks is two; the ends of piston rods of the hydraulic jacks are hinged to sides opposite to the peak of the triangle supporting frame respectively; both the ends of cylinder bodies of the hydraulic jacks are hinged to the automobile frame. The electric paying-off automobile is applied to all kinds of electric power and communication departments.

The invention discloses a portable ultrasonic diagnostic apparatus which comprises a main frame, a CRT kinescope, a CRT drive plate, a power panel, a mainboard and a probe plate. The CRT kinescope and the CRT drive plate are installed on the main frame. The power panel is arranged at one side of the main frame vertically. The mainboard and the probe plate are arranged at the other side of the main frame vertically. As the proposal is adopted, a mainboard and probe plate component is apart from the power panel in space, thereby reducing space radiation coupling and improving image output quality. The mainboard and probe plate component and the power panel are arranged symmetrically and are as close as possible in weight, thereby ensuring the gravity center of a whole machine is balanced. The mainboard and the probe plate are connected from board to plate instead of cable, and the mainboard and the probe plate are piled up and shielded, thereby ensuring a compact structure and also avoiding the mutual interference between the mainboard and the probe plate and the interference caused by the connection by a long cable. The whole machine has compact and stable structure, strong anti-interference capacity and good image quality.

The invention relates to a high-speed rotor structure of a centrifugal blower, which comprises a high-speed gear shaft, an impeller, a stay bolt, a C-shaped ring, a nut, a protection cover and a screw. One end of the stay bolt is connected with the high-speed gear shaft, and then sequentially penetrates through the impeller and the C-shaped ring, so as to fasten the impeller on the high-speed gear shaft by screwing the nut; the screw is screwed into a thread hole at one end of the stay bolt; and the protection cover is connected with the C-shaped ring. The high-speed gear shaft adopts a balancing disk structure between a bearing position of a radial bearing and a bearing position of a thrust bearing. The balancing disk is cylindrical and provided with a positioning shaft shoulder, and is homocentric with the high-speed gear shaft. The high-speed rotor structure is simple, the balancing disk structure at one end of a shaft is beneficial to the balancing of the center of gravity, the vibration amplitude of the impeller is reduced, the system stability is improved, the load of two radial bearings is effectively balanced, and a gap between the impeller and a spiral casing is reduced, so that the efficiency of the blower is improved.

The invention provides a posture-intelligent-adjusting and movable toilet-bowl robot. According to the posture-intelligent-adjusting and movable toilet-bowl robot, omnidirectional movement in the indoor environment can be achieved, and the toilet-bowl robot assists a user in sitting down and getting up by adjusting the height and the dip angle of a seat ring; meanwhile, the gravity center of the user is monitored, the current state of the user is judged, and if the unusual condition appears, a danger distress signal is emitted in time. The gravity center of the user can be balanced by adjusting the posture of the seat ring and the orientation of the toilet-bowl robot, and therefore it is avoided that the user slips off from a toilet bowl and tumbles.

A stability-preferable underwater robot propelled by fish manner is composed of fish-shaped main body, propelling unit fixed in main body, tail fin, great arm for connecting main body with tail fin, and handle of tail fin. Its SPC propelling unit consisting of propeller, great arm, tail fin and handle of tail fin can generate relative movement under the driven of servo motor to make tail fin moveby the SPC control rule. Its advantages are high stability, and high speed.

The invention discloses a spraying robot capable of achieving automatic cable feeding. The spraying robot capable of achieving automatic cable feeding comprises a rack, two sets of walking wheels, an equipotential contact device and an automatic nozzle mechanism; the two sets of walking wheels are rotationally connected to the middle of the rack; the equipotential contact device is fixed on the rack at the portion between the two sets of walking wheels; the automatic nozzle mechanism is arranged at the tail of the rack; the automatic nozzle mechanism comprises a fixed nozzle set and a floating nozzle set;, the fixed nozzle set is located right over the floating nozzle set; the fixed nozzle set and the floating nozzle set are driven by a lead screw driving mechanism to move mutually; and the two sets of walking wheels and the fixed nozzle set make contact with the upper surface of a cable. The spraying robot has the advantages that the automatic operation of the spraying robot is realized in a real sense, the automatic nozzle mechanism is automatically closed after the cable is hung, and the robot automatically walks and sprays the cable.

The invention discloses a weight compensation device on an underframe of an elevator carriage. Multiple balance weight blocks are arranged in a box body, the box body is matched with a connecting plate to clamp the underframe of the carriage, and the box body provided with multiple balance weight blocks is connected and fixed on the underfame of the carriage, thus the weight of the carriage can be compensated, the forward-backward gravity of the carriage is balanced, and abrasion of a guide shoe to the carriage is reduced, the balance weight blocks in an inner cavity can be increased or decreased by virtue of an opening of the box body, and the box body is matched with a connecting block to clamp the underframe of the carriage and be separated from the underframe of the carriage, thus the box bodies can be increased or decreased on the underframe of the carriage, the compensation range on the weight of the carriage is wider, and the forward-backward gravity of the carriage can be better balanced. The box body is fixed on the underframe by the way that the box body is matched with the connecting plate to clamp the underframe of the carriage, thus the box body can be conveniently mounted and fixed no matter the underframe of the carriage adopts a steel tube with a C-shaped cross section or the steel tube with a rectangular cross section, namely the balance weight blocks are mounted and fixed on the underframe of the carriage.

The invention discloses a holder used for supporting an imaging device. The holder comprises a first supporting bracket, a locking device, and a second supporting bracket hinged to the first supporting bracket and capable of driving the first supporting bracket to rotate. The first supporting bracket comprises two first pillars, two guide columns and two first clamping devices. The two guide columns are arranged roughly vertical to the two first pillars, can move along the length direction of the first pillars, and can be fixed to the first pillars via the first clamping devices. The locking device can move along the length direction of the guide columns. The locking device is used for supporting the imaging device and fixing the imaging device to the guide columns. The first pillars and / or the guide columns are marked with scales. The holder can rapidly balance the gravity center.

The invention discloses a lithium ion battery pack capable of adjusting the shift gravity center. The lithium ion battery pack comprises a shell and a left and right shift screw rod mechanism, wherein the left and right shift screw rod mechanism is arranged on a base plate in an inner cavity of the shell, and comprises a gear module, a screw rod and a fixed support; the center of the gear module penetrates through and is screwed on the screw rod; the rear surface of the fixed support is connected with the screw rod; a lithium ion battery pack body is fixed on the top surface of the fixed support, and is positioned in the shell; when the gear module is adjusted, the gear module drives the screw rod to rotate; the screw rod drives the fixed support and the lithium ion battery pack body to move left and right. When the lithium ion battery pack provided by the embodiment is applied to an automobile model, the shift gravity center of the lithium ion battery pack can be regulated according to requirements of users, so that application of users is facilitated.

The invention discloses a hub structure and provides a strength reinforcing structure for an asymmetrical wheel with a high-ventilation holes, which has the advantages of simple structure, good ventilation effect, high strength and good shock resistance and solves technical problems in the prior art that the strength of the hub structure is low, the hub structure is prone to deform, the shock resistance of the hub structure is poor, the ventilation performance of the hub structure is poor and so on. The strength reinforcing structure comprises a wheel rim and a wheel spoke unit which is arranged on the wheel rim, wherein the wheel spoke unit also comprises a mounting ring and a plurality of spokes; the mounting ring is coaxially arranged at the middle part of the wheel rim; the plurality of spokes are arranged on the outer ring surface of the mounting ring; external side ends of the spokes extend outwards to be fixed on the wheel rim; air holes are formed between the adjacent spokes; side reinforcing ribs are arranged on the two sides of the spokes in a radial direction, respectively; after the corresponding side reinforcing ribs at the internal side ends of the adjacent spokes are butt-jointed with each other, triangular internal reinforcing ribs are formed; thicknesses of the corresponding side reinforcing ribs on the two sides of at least two internal reinforcing ribs have differences; and relative to the split of an angle between the corresponding spokes, the top angles of at least two internal reinforcing ribs facing the center of the wheel rim are inclined to one side.

The invention discloses an automatic buckling machine for a wave-soldering jig, and the buckling machine comprises a buckling welding rack, a disc receiving mechanism, a buckling Z shaft, a mainboard taking and placing mechanism, a jig taking and placing mechanism, a jig positioning mechanism, and a jacking rotating mechanism. The buckling Z shaft is fixedly disposed above the buckling welding rack. The mainboard taking and placing mechanism is fixedly disposed at the left side of a platform of the buckling welding rack. The jig taking and placing mechanism is correspondingly disposed at the right side of the platform of the buckling welding rack in a fixed manner. The jig positioning mechanism is fixedly arranged exactly below the jig taking and placing mechanism and the mainboard taking and placing mechanism in a centralized manner. The disc receiving mechanism is in butt joint with the front surface of the jig positioning mechanism. The left and right sides of the buckling welding rack are respectively in butt joint with a factory production line. The jacking rotating mechanism is located at the left side of the buckling welding rack. The buckling Z shaft is provided with a buckling valve assembly. The disc receiving mechanism is provided with a disc receiving lifting shaft, a jig production line, and a disc pushing assembly. According to the invention, the machine takes a circuit board through vacuum absorption, and cannot cause friction and collision to damage the circuit board during taking and placing.

The invention relates to a three-translation high-speed sorting parallel manipulator comprising a fixed platform, a movable platform, and three branch chains, wherein the first branch chain comprises a first rotation pair, a first driving arm, a second rotation pair, a connection rod, a third rotation pair, a first connection piece, and a fourth rotation pair; the second branch chain and the first branch chain are same in structure; the third branch chain is arranged between the first branch chain and the second branch chain; the third branch chain comprises a first moving pair, a second driving arm, a fifth rotation pair, a connection arm, a sixth rotation pair, a second connection piece and a second moving pair. The three-translation high-speed sorting parallel manipulator has the beneficial effects of being simple in structure, convenient to install, high in bearing capacity, large in work space, and easy to control. The structure is in symmetrical distribution; the appearance is attractive; the center of gravity of the manipulator is balanced; characteristics of little weak coupling and little input are achieved; the three-translation high-speed sorting parallel manipulator is wide in application range, and can be used for sorting, assembling and manufacturing in an assembly line and production of medical robots, parallel machine tools, smart home and sensors.

The invention discloses an anti-falling assisting device and relates to the technical field of articles for daily life. The anti-falling assisting device comprises a waist fixing device fixed on a waist and an outer skeleton trunk device located below the waist fixing device, wherein the waist fixing device is provided with a power supply for supplying an energy source for the whole device, a controller which is electrically connected with the power supply and a gyroscope which is electrically connected with the controller; the waist fixing device and the outer skeleton trunk device are connected through a hip joint part; the hip joint part is electrically connected with the controller; the outer skeleton trunk device is electrically connected with the controller; the outer skeleton trunkdevice comprises a thigh part and a shank part; the thigh part and the shank part are connected through a knee joint part; a servo motor is electrically connected with the controller; the thigh part is provided with a bandage which is tied on a thigh; the shank part is provided with a bandage which is tied on a shank. The anti-falling assisting device disclosed by the invention has the beneficialeffects that the anti-falling assisting device is simple in structure and motion attitudes of the device can be flexibly and rapidly adjusted; the body balance of old people is maintained and fallingis effectively avoided.

The invention relates to a shield tunneling machine cutterhead structure with telescopic geological drills. The shield tunneling machine cutterhead structure comprises a disc main body, radial platesand spokes; the periphery of the disc main body is provided with peripheral cutters, the radial plates are provided with hobbing cutters, the spokes are provided with cutters, and the edges of the spokes are provided with the multiple telescopic geological drills; when a cutterhead is rotated, motion trails of the multiple telescopic geological drills are concentric circles, the telescopic geological drills are located in cavity pipes, the openings of the cavity pipes are provided with movable plates, when the telescopic geological drills stretch out of the cavity pipes, the movable plates areopened, and when the telescopic geological drills contract into the cavity pipes, the movable plates are closed. According to the shield tunneling machine cutterhead structure, by arranging the telescopic geological drills on the cutterhead, boulder is effectively drilled into a honeycomb briquette shape, the structure and hardness of the boulder are broken, the boulder can be smashed by the cutters advantageously, accordingly, the cutters are protected, and the cutter abrasion rate is decreased; and in addition, the problem that the boulder cannot be machined on the ground is soved, and theshield driving efficiency is improved.

The invention provides an electric hoist, which includes a motor 1 and a speed reducer case 16 respectively placed at the two ends of a lifting chain wheel 21 of an electric chain hoist; centers of an output shaft 14 and the lifting chain wheel 21 are positioned on the two sides of a center horizontal plane of the motor 1 and a first-stage gear shaft 7; the electric hoist is further provided with limiting devices; a transmission chain formed by the motor 1, a safety clutch 3, the first-stage gear shaft 7, a first-stage gear 8, a second-stage gear shaft 9, a second-stage gear 11, a third-stage gear shaft 12, a third-stage gear 13, an output shaft 14 and a chain wheel 21 is arranged in an reversed C-shape on the horizontal plane; a brake 10 is mounted on a first shaft 7 on the right side of the speed reducer case 16; the chain wheel 21 at the outer end of the output shaft 14 adopts a cantilever structure; the limiting devices include a load limiting device and a chain wheel limiting device. The invention has the benefits that the complete machine of the DI type electric chain hoist has long service life (about 10-15 years), the working class is high (M5), the complete machine of the hoist is low in noise (not greater than 75 dB (A)), and the DI type electric chain hoist is in the lead-edge technology level in domestic electric chain hoists.

The invention discloses an unmanned aerial vehicle for measuring the coating film thickness of a high-rise steel structure. The unmanned aerial vehicle comprises a flight mechanism, a film measuring mechanism and an adsorption and separation mechanism; the flight mechanism comprises a fuselage connected with a plurality of horizontal rotor wings; the film measuring mechanism comprises an equipmentplate assembled on the fuselage through a rotary shaft, the equipment plate has the rotational degree of freedom at least within the straight angle range around the axis of the rotary shaft, and a film measuring probe is fixed to the equipment plate; and the film measuring mechanism and the adsorption and separation mechanism are both arranged on the same surface of the equipment plate, the adsorption and separation mechanism comprises a vertical rod and a jacking mechanism which are vertically fixed to the equipment plate, a permanent magnet is arranged at the top end of the vertical rod, the jacking mechanism has the linear reciprocating degree of freedom in the direction parallel to the vertical rod, and the vertical distance between the permanent magnet and the equipment plate is within the vertical distance between the top end of the jacking mechanism and the equipment plate when the top end of the jacking mechanism is located at the two limit positions. By adopting the unmannedaerial vehicle, paint film detection can be conducted on the steel structure at the high position which is inaccessible to people, the upper surface, the lateral facades and the lower surface of the steel structure all can be detected, and thus the unmanned aerial vehicle is widely applied.

The invention provides a spherical full-automatic gravitational venous transfusion monitor 1. The spherical full-automatic gravitational venous transfusion monitor 1 is formed by characteristic structure components such as a string bearing rod 2, a synthetic monitor shell 3, a synthetic center assembling pipe 4, a synthetic mechanical arm shell clamping groove 5, a flow control mechanical arm 6, a fastening cap 7 and a synthetic console surface 15. The spherical full-automatic gravitational venous transfusion monitor provided by the invention can be matched with a common disposable gravitational venous transfusion device for use, and the integration design is suitable for a hospital application environment; the modernization requirement on venous transfusion management can be met by a cut-off function and a warning function; through the promotion and the application of the spherical full-automatic gravitational venous transfusion monitor, a large amount of labor resources can be saved, unnecessary work of medical staff can be reduced, the operation load of the hospital can be reduced, the nursing service quality can be increased, and huge economic benefit and huge social benefit are obtained.

The invention discloses a water extracting well by means of a foot pump. The water extracting well comprises a water extracting well body, an extracting well rocker, a piston rod, an elastic return part, an overflowing storage device, a driving rod and the foot pump; the foot pump comprises piston cylinders, a valve, a cover plate, pedals, piston assemblies and adaptors. According to the device, the design is rational, use is easy and convenient, it is only necessary for people to put their feet on the pedals and conduct vertical alternating motion, the pedals drive the piston cylinders to work through the piston assemblies, and the piston cylinders drive the extracting well rocker to extract water; manpower is used for extracting water, the requirements of energy conservation and environmental protection are met, not only do people extract water, but also the purpose of exercise is achieved, and the device is applicable to users of different ages; through arrangement of the overflowing storage device, water pressure in the water extracting well can be relieved, and the phenomenon that water leakage of the water extracting well occurs is prevented; the device is further provided with a handrail rod, people can hold the handrail rod when extracting water, the body gravity center is balanced, and the use safety is good.

The invention provides a dual-purpose two-wheel electric balance vehicle. Standing and control driving of the dual-purpose two-wheel electric balance vehicle in the two orthogonal directions can be achieved. The dual-purpose two-wheel electric balance vehicle comprises a single pedal, two sets of pedal switches, two motor wheels, a pivoting mechanism and an electric drive unit. The single pedal provides the pedal positions in the two orthogonal directions. The two sets of pedal switches are fixed to an upper cover of the pedal and correspondingly induce whether a user stands on the electric balance vehicle or not so as to be turned on or off. The two motor wheels are coaxially and symmetrically arranged below the middle of the pedal. The pivoting mechanism is a hollow shell body and is rotationally connected between the pedal and the two motor wheels. The electric drive unit is electrically connected with the two sets of pedal switches and the two motor wheels, detects an attitude signal of the pedal, and controls and drives the two motor wheels. The dual-purpose two-wheel electric balance vehicle is compact in structure and easy and convenient to control, and has dual purposes.

The invention relates to a supporting structure used for an engineering building. The supporting structure comprises a supporting platform and space supporting bodies arranged on the supporting platform. Each space supporting body comprises a plurality of supporting units are overlaid in the vertical direction or / and the horizontal direction and a plurality of connecting pieces used for connecting the adjacent supporting units. The supporting units are provided with passing notches. The passing notches of the adjacent supporting units communicate to form passing channels. The space supporting bodies and the supporting platform are detachably connected. The multiple space supporting bodies are built on the supporting platform according to the appearance of a building structure, the adjacent space supporting bodies are fixed through connecting pieces to form a stable integral supporting structure, and thus the bearing requirement during building construction is guaranteed. The supporting structure is adjustable in gravity line and force bearing point, can be moved and reused and further has the characteristics that the mounting and detaching time, the construction cost and technical difficulty are reduced, and the working efficiency is improved.

The embodiment of the invention provides a mechanical arm used for a narrow working space. The mechanical arm comprises a first articulated arm, a second articulated arm and a third articulated arm, the second articulated arm comprises a front end part and a rear end part, the rear end part is configured to rotationally drive the front end part, the rear end part is connected with the first articulated arm and pivots relative to the first articulated arm, the front end part is connected with the third articulated arm and pivots relative to the front end part, and the third articulated arm is configured to rotationally drive an actuator. The mechanical arm can be operated in a narrow space, and is large in movement range, flexible in joint movement, high in load capacity, stable in structure and balanced in gravity center; and operation faults can be reduced, narrow space operation efficiency is improved, and the problem of system stability is solved.

The invention relates to a straw collecting and pulverizing device of a corn harvester, which comprises a straw cutter, a straw collector and a straw pulverizer, wherein the straw cutter is installed on the fixed mount front end which is installed below a picking roller and connected with a cutting table fixed mount. The invention is characterized in that the straw collector is installed on the back end of the fixed mount corresponding to the straw cutter, the straw pulverizer is installed on the front end part of the front machine frame which is fixedly connected with a power machine, and a straw conveyer is arranged between the discharge port of the straw collector and the feed port of the straw pulverizer. The discharge port of the straw pulverizer is also provided with a straw thrower. In the invention, after the corn straws are cut off by the straw cutter and the spike is picked by the picking roller, the corn straws are collected by the straw collector, and are conveyed to the straw pulverizer by the straw conveyer to be pulverized, or returned to the field, or thrown into the accompanying vehicle by the straw thrower for reuse. The invention has the advantages of compact structure, reasonable design, reliable operation and strong applicability.

The invention discloses a tower and cabinet integrated communication base station which comprises a foundation base, a communication pipe tower and a suspended type cabinet set. The communication pipetower is connected to the foundation base, and the suspended type cabinet set is arranged on a tower body of the communication pipe tower. Due to the fact that the suspended type cabinet set arrangedon the communication pipe tower, the cabinet set can get away from the ground surface to be arranged in the air, the space occupation of the communication base station can be effectively reduced, andmeanwhile the ventilation and heat dissipation conditions of the cabinet set are improved; and after the suspended type cabinet set is attached to the communication pipe tower, the problem that in atraditional communication base station which is integrally formed by tower and cabinet welding, due to wobbling of a pipe tower, the welding gap between the pipe tower and a cabinet is likely to be damaged can be solved effectively, the structure that the pipe tower is attached to the independent suspended type cabinet set is adopted, the welding connecting manner is omitted, and the phenomena ofwater leakage and dustproof failure are avoided.

The invention relates to a solar electrostatic dust-removal broom. The solar electrostatic dust-removal broom comprises a broom body composed of a broom handle, a broom head and a broom hair bundle, athin-film solar cell panel arranged on the surface of the broom head, an electrostatic generator arranged in the broom head and used for enabling the broom hair bundle to generate the static electricity, an accumulator and a solar charge / discharge controller which are arranged in the broom handle, and a charge interface and a power switch which are arranged on the broom handle; and the thin-filmsolar cell panel is electrically connected with the accumulator through the solar charge / discharge controller, and the electrostatic generator, the charge interface and the power switch are electrically connected with the accumulator. Compared with the prior art, the dust-removal broom disclosed by the invention is simple in structure, strong in practicability, energy-saving and environment-friendly, the dust and hair in the home can be solved by sufficiently utilizing the solar energy, and the use is convenient and easy.

A cigarette missing detector is characterized by comprising a connector board, a main baffle, a copper middle plate, a base, guide rod bodies, compressed springs, a signal line connecting port, adjusting bolts, insulating paper, a shell, fastening bolts and a mounting bolt; the connector board, the copper middle plate and the main baffle are assembled to the base through the adjusting bolts; the compressed springs are arranged between the connector board and the copper middle plate; the compressed springs conduct axial locating through the main baffle; the connector board, the copper middle plate and the main baffle are wrapped by the insulating paper and arranged in the shell; the shell is fixed to the base through the fastening bolts, and the shell is connected with the equipment through the mounting holt; each guide rod body is sleeved with one compressed spring, one end of each guide rod body penetrates the main baffle and the copper middle plate and is connected to the connector board in a sliding fit manner, and a signal collection and transmission part is jointly formed; and the signal line connecting port is mounted on the connector board.

The invention discloses a fabricated material lifting device for building decoration.The device comprises a device body, universal wheels, a handle, a material lifting mechanism, a storage box, an accidental braking mechanism and an anti-toppling mechanism. The universal wheels are arranged at the bottom end of the device body and are in contact with the ground, and the handle is arranged on one side of the device body and is fixedly connected with the device body. The material lifting mechanism is arranged in the device body, the storage box is arranged on one side of the device body and connected with the material lifting mechanism through the accidental braking mechanism, one end of the anti-toppling mechanism is connected with the storage box, and the other end of the anti-toppling mechanism is connected with the material lifting mechanism. The whole transportation process can be monitored in real time, remedy can be made in time in case of accidents, and further damage to the device body and transported building materials is avoided. Besides, adjustment can be made according to the total weight of the building materials to be transported, the phenomenon that the whole material lifting device inclines laterally due to the fact that the building materials are too heavy can be effectively avoided, and therefore the quality and efficiency of building decoration are guaranteed.

The invention discloses a floor brush of a scrubber, which comprises a base, a brush roller, an upper cover and a connecting pipe, the connecting pipe is rotatably installed at the rear end of the base, rear wheels rotatably installed on the base are arranged on the two sides of the lower end of the connecting pipe, the brush roller is rotatably installed at the front end of the base, the scrubber floor brush further comprises a detachable water tank, a water tank groove is formed in the upper cover, at least part of the water tank is contained in the water tank groove, a motor, a circuit board and a water pump are arranged on one side in the base, a cavity for containing the water tank groove is formed in the other side of the base, the water tank is detachably arranged on the floor brush, the waterway stroke is simplified, the water tank is close to the water pump, the pressure difference of the water pump is reduced, and the service life of the water pump is prolonged. The layout of the water tank, the motor and other elements of the floor brush maximizes the volume of the water tank, balances the gravity center of the floor brush, and improves the working stability of the floor brush.