40results about How to "Achieve labor-saving effect" patented technology

The invention relates to a healthcare massage device, in particular to the healthcare massage device for the neurology department, and aims at achieving the technical purpose of providing the healthcare massage device for the neurology department. To achieve the technical purpose, the healthcare massage device comprises a frame and the like; first openings are formed in the upper sides of the left wall and the right wall of the frame, a press mechanism is arranged between the two walls of the frame, the left end and the right end of the press mechanism penetrate through the first openings, and a supporting plate is arranged at the bottom in the frame and is provided with a tightening mechanism. The healthcare massage device for the neurology department has the advantages that the work intensity of medical personnel can be lowered, and the rehabilitation of a patient can be promoted; after the legs of the patient are placed, the device can automatically massage the legs of the patient simply by starting a motor, and in this way, a large amount of time and energy of the medical personnel can be saved.

The invention discloses a roof cleaning device which comprise a base. Universal wheels are symmetrically arranged at the bottom end of the base, supporting rods are symmetrically arranged on two sidesof the top end of the base, a fixing cylinder is arranged at the middle position of the top end of the base, a rotary shaft I is inserted into the fixing cylinder in a penetrating way and is sleevedwith a conical gear I, a basic seat located on one side of the fixing cylinder is arranged at the top end of the base, a rotary shaft II penetrates into the basic seat, a conical gear II meshed with the conical gear I is arranged at one end of the rotary shaft II, a rotary handle located on one side of one supporting rod is inserted into one end of the rotary shaft II in a penetrating way and sleeved with a chuck located on one side of the supporting rod I. The roof cleaning device has the advantages that the cylinder is turned to drive a chicken feather duster to in friction with spider webson a wall, so that falling spider webs enter a collecting ring and spider web collection is completed, convenience is brought to operation of a user, an effort-saving effect is achieved, and the working efficiency is greatly improved.

The invention discloses a novel labor-saving building equipment conveying cart. The novel labor-saving building equipment conveying cart comprises a loading plate; universal wheels are movably connected to the surrounding of the lower surface of the loading plate; stopping plates are symmetrically arranged on the surrounding of the lower surface of the loading plate and on the two sides of the universal wheels; placing plates are clamped on the surrounding of the upper surface of the loading plate; the two sides of the placing plate are rotationally connected with protective frames 2 through rotating shafts 13; roll shafts are rotationally connected to the internal surface walls of the protective frames; a pedal is movably connected to the external surface of one side of the loading plate;a spring is arranged on the lower surface of the horizontal end of the pedal; a limiting rod is welded on the lower surface of one side of the loading plate and under the spring; lifting cylinders are fixed at the internal bottom ends of the placing plates through bolts; and the tops of the lifting cylinders are connected with pressure transferring plates through telescopic rods. According to thenovel labor-saving building equipment conveying cart, the integral structural design is simple and reasonable, the physical effort of personnel during unloading and conveying building equipment is effectively reduced, and higher practicability is realized.

The invention discloses a spiral compaction sealing type quick-opening device. The spiral compaction sealing type quick-opening device mainly comprises a container main body, a quick-opening end cover part and a seal assembly, wherein a boss and container main body meshing teeth are sequentially machined on an end flange of the container main body from inside to outside of the container main body, the boss is provided with a groove, and the meshing surface of the container main body meshing teeth is a spiral surface with a certain lead angle; the quick-opening end cover part mainly comprises an end cover, end cover meshing teeth, a support, a guide shaft and a torsion shaft, the end cover meshing teeth and the container main body meshing teeth can form similar thread connection matching, a cover plate can move along the axial direction by being rotated anticlockwise, a sealing element is compacted, and zero clearance between the cover plate and the boss of a container is guaranteed. A spiral compaction mechanism is designed on the basis of a tooth-locked quick-opening structure, and sealing of the container is realized through mechanism self-adaption; meanwhile, quick opening of the end cover is guaranteed, and the spiral compaction sealing type quick-opening device is compact in structure and convenient to operate, and has good engineering application prospects.

The invention relates to a drawer holder for a switchgear comprising: a drawer holder frame, an electrical connection mechanism provided in the drawer holder frame for connecting the main circuit of the switchgear body; and a sliding mechanism provided in the drawer holder frame for fixing and going in and out of the switchgear body, and a transmission device provided in the drawer holder frame and connected with the sliding mechanism for driving the sliding mechanism to drive the switchgear body into and out. Compared with the prior art, the drawer holder applies the force exerted by the screw, the rack plate and the shaft to facilitate the fixing and the moving in and out of the switchgear body.

The invention relates to the field of vegetation restoration devices, in particular to a disease and pest vegetation treatment device. The device comprises a box, wheels, a cleaning structure, a limiting structure, a feeding structure, a deinsectization structure and a stirring structure. When the device walks on disease and pest vegetation, that is, the wheels rotate, the cleaning structure can be synchronously driven to work, fallen leaves and branches attached to the vegetation can be cleaned away through work of the cleaning structure, and therefore dry branches and fallen leaves on the vegetation can be cleaned away in time, and the attractiveness of the garden vegetation is prevented from being affected by the dry branches and fallen leaves; through the arrangement of the limiting structure, it can be guaranteed that the dry branches and fallen leaves are raked up, the cleaning structure can synchronously drive the feeding structure to work while working, through work of the feeding structure, the dry branches and fallen leaves raked up by the cleaning structure can be lifted and collected, and therefore the dry branches and fallen leaves can be conveniently collected; and when the cleaning structure collects the dry branches and fallen leaves, the deinsectization structure can be synchronously driven to work.

The invention discloses a construction waste treatment device, and belongs to the field of construction waste. The construction waste treatment device comprises a preliminary crushing chamber, a feeding bin is arranged on the right side of the preliminary crushing chamber, a drainage pipe is arranged at the position, close to the bottom side, of the rear side of the preliminary crushing chamber, a filter plate is fixedly connected to the front end of the drainage pipe, an inverted U-shaped base is fixedly connected to the top of the preliminary crushing chamber, sliding grooves are formed in the inner walls of the two opposite sides of the inverted-U-shaped base, the bottom sides of the sliding grooves extend to the positions close to the inner wall of the bottom side of the preliminary crushing chamber, a preliminary crushing plate is connected between the two sliding grooves in a sliding mode, and preliminary crushing teeth which are evenly distributed are arranged on the bottom side of the preliminary crushing plate. The construction waste treatment device has the advantages that concrete blocks containing iron nails and reinforcing steel bars generated by removal can be separated, in addition, the iron nails and the reinforcing steel bars are separated from the concrete blocks, and therefore the situation that a crushing device is jammed by the iron nails and the reinforcing steel bars or the crushing device is quickly worn when the concrete blocks are crushed can be effectively reduced.

The invention relates to the technical field of disinfection and sterilization, and discloses a manual spraying bottle good in air tightness and convenient to press. The manual spraying bottle comprises a spraying bottle body, wherein a bottle cap is movably connected to the top of the spraying bottle body. According to the manual spraying bottle good in air tightness and convenient to press, a button is pressed, a piston piece is driven by a linkage rod to move, and liquid in a water storage chamber is sprayed out of the bottle through a second one-way valve; and when the button is released,a spring drives the button to move leftwards, the piston piece is driven by the linkage rod to move, the liquid in the spraying bottle body can be automatically sucked through a first one-way valve due to pressure in a storage chamber, and therefore the effect of saving labor is achieved. In the normal state, the liquid contained in the water storage chamber blocks air from making contact with theinterior of the spraying bottle body, air pressure leakage cannot be caused, and the air tightness cannot be affected; when the spraying bottle body is used, a first water inlet cannot make contact with air, and therefore air cannot make contact with the interior of the spraying bottle body, and the advantage of being good in air tightness is achieved.

The invention discloses an inflator air nozzle assembly convenient to use, characterized by comprising a housing and a nozzle element assembly for threaded connection with a tire nozzle, the housing is fixedly connected with an exhaust end of the inflator, the nozzle element assembly is rotatably disposed inside the housing and in communication with the exhaust end of the nozzle element assembly, a ratchet wheel transmission mechanism is disposed between the nozzle element assembly and the tire nozzle; the invention has the advantages that a user can inflate a tire without stretching hands between two steel wires of a tire so as to turn the inflator's nozzle and then just by holding a body of an inflating barrel or an exhaust pipe, facilitating and quickening the usage; an arm of force application is lengthened, saving labor to certain degree; in addition, the inflator nozzle assembly can be used in smaller tire spaces.

The invention relates to auxiliary welding equipment, in particular to a support device for base reinforcement welding. The technical problem of the invention is how to design the support device for base reinforcement welding; and the support device can guarantee uniform intervals of reinforcement cages and low manpower, and can guarantee vertical and horizontal level of reinforcements. The support device for base reinforcement welding is characterized by comprising a base, fixed plates, first discs, a hollow pipe and the like; the fixed plates are arranged on the left and right sides of the top of the base; and the first discs are rotationally arranged on the fixed plates. Strip reinforcements are clamped through fixing devices to prevent falling from grooves, and can be uniformly placedto achieve a standard forming circle shape of reinforcement base piles; reinforcement rings can be stopped through stop rods to prevent sliding down; and a motor is started to slowly rotate a worm wheel to drive rotation of the first discs, so that the manual rotation of the first discs is not needed, and the effect of power saving is achieved.

The invention discloses a flushing valve provided with a connecting rod type transmission mechanism. The flushing valve comprises a starting element movably installed in a valve body and a lifting pipe, wherein a valve disc matched with a water draining port of the flushing valve is fixedly connected to the bottom end of the lifting pipe. The flushing valve further comprises the transmission mechanism, wherein the transmission mechanism comprises, at least, a connecting rod I matched with the starting element in a transmission mode and a connecting rod II for lifting the lifting pipe, the connecting rod I is matched with the connecting rod II in a transmission mode, at least two supporting portions are arranged between the transmission mechanism and the valve body, and accordingly the lift-pulling position of the lifting pipe is flexibly selected as required on the premise that smooth lifting of the lifting pipe is ensured. On one hand, space layout of the transmission mechanism in the valve body is facilitated; on the other hand, the lift-pulling position of the transmission mechanism to the lifting pipe can be close to the lifting pipe or is directly arranged on the lifting pipe, accordingly a torsional moment of the transmission mechanism when the lifting pipe is lifted is greatly decreased or even zero, further a turning-on force value of the flushing valve is decreased, and a force saving effect is achieved.

The invention relates to the technical field of training, in particular to a medical orthodontic training device. The medical orthodontic training device comprises an upper plate and a lower plate, wherein the upper plate and the lower plate are arranged in parallel up and down; a lower connecting plate is fixed to one side of the upper portion of the lower plate. An upper connecting plate is fixed on one side of the bottom of the upper plate; the upper connecting plate and the lower connecting plate are rotationally connected with each other; tooth-shaped annular grooves are formed in the upper portion of the upper plate and the lower portion of the lower plate. Telescopic mechanisms are connected to the two sides between the upper plate and the lower plate; the telescopic mechanisms comprise inserting rods and sleeves, the bottoms of the sleeves are rotationally connected to the two sides of the upper portion of the lower plate, the upper portions of the inserting rods are rotationally connected to the two sides of the lower portion of the upper plate, one ends of the inserting rods are inserted into the sleeves, and sliding limiting mechanisms are connected to the two sides between the inserting rods and the sleeves. According to the orthodontic training device, the device is placed in the oral cavity, and then teeth are placed in the tooth-shaped annular grooves in the upper plate and the lower plate.

The invention relates to a solution feeding system for soilless culture. The solution feeding system comprises a stock solution barrel, a liquid level regulation and control barrel and at least one matrix cultivation tank which are sequentially connected through a pipeline, wherein a water outlet of the stock solution barrel is located above a water inlet of the liquid level regulation and control barrel, so that the stock solution barrel can supply a solution to the liquid level regulation and control barrel through gravity; a liquid level sensor which is used for sensing liquid level altitude and controlling the solution supplying of the stock solution barrel is arranged in the liquid level regulation and control barrel; and the liquid level regulation and control barrel communicates with the matrix cultivation tanks. During use, solution feeding operation is automatically completed through gravity by using liquid level head drop without using a water pump and consuming electric power, and thus, the aims of environment-friendliness and energy saving can be achieved. Meanwhile, capillary tubes in porous mixed matrixes in the matrix tanks are used for adsorbing moisture so as to irrigate and moisten the matrixes, and thus, automatic solution feeding and automatic regulation and control on the moisture content of the matrixes in the cultivation tanks are completed.

The invention discloses a lifting and pulling mechanism of a drain valve. The lifting and pulling mechanism of the drain valve is arranged in a valve body of the drain valve and is used for performing transmission cooperation with a starting component of the drain valve to lift and pull a lifting pipe which is movably arranged in the valve body and is fixedly connected with a valve disk cooperating with a drainage port of the drain valve. The lifting and pulling mechanism of the drain valve is characterized by at least comprising a connecting rod I and a connecting rod II, wherein the connecting rod I is pivoted to the valve body and is in transmission cooperation with the starting component; one end of the connecting rod I is pivoted to a part between the first end and the second end of the connecting rod II; while the connecting rod II is pulled by the connecting rod to rotate around the first end of the connecting rod II, the first end of the connecting rod II forms abdicating displacement relative to the valve body and the second end of the connecting rod pulls the lifting pipe. The lifting and pulling mechanism can select the lifting and pulling position of the lifting pipe flexibly according to requirements on the premise of guaranteeing smooth lifting and pulling of the lifting pipe so as to reduce the torsional moment when the lifting pipe is lifted by selecting the optimal lifting and pulling position, reduce the starting force value of the drain valve and achieve the labor-saving effect.

The invention discloses an axle. The axle comprises rotating arms, a bridge with two ends respectively connected with the rotating arms in a rotating manner and a hub fixedly installed on the rotating arms and capable of moving up and down when the rotating arms rotate. In a vehicle with more than three shafts, the axle which does not have a steering and drive effect is set as the axle, so that when the axle is under a full load, a supporting effect can be realized by adjusting a rotating angle of the rotating arms, and the axle can be suspended at no load. The hub is driven by the rotating arms to move up and down, so that the main bearing capacity of the hub can be effectively concentrated onto the bridge; and moreover, the rotating arms can form a lever mechanism to achieve a labor-saving effect, and a subsequent hoisting apparatus can be prevented from providing a supporting force directly to the hub. By using the axle, the problem that the hub of the axle is inconvenient to lift can be effectively solved. The invention also discloses a suspension system comprising the axle.

The invention relates to the field of steel ingot smelting and picking devices, in particular to a multidirectional sliding pickup device for smelting steel ingots. The device comprises a bracket, a lifting structure, a telescopic structure, a supporting structure, a prying structure and a clamping structure; the lifting structure can automatically lift stably-clamped steel ingots in the verticaldirection, so that the stably-clamped steel ingots can be conveniently lifted to the top end of a smelting furnace, the lifted steel ingots can transversely move in cooperation with the arrangement ofthe telescopic structure, the steel ingots can enter a smelting furnace more accurately, the device is simple and convenient to operate, the prying structure is installed at one end of the telescopicstructure, the steels ingots placed on the ground can be pried up according to the lever principle, so that the clamping structure can be automatically inserted into the bottom ends of the steel ingots, and the bottom ends of the steel ingots can be lifted while the steel ingots are clamped; and therefore, the situation that the steel ingots fall off due to unstable lateral clamping can be avoided, and the safety risk can be greatly reduced.

The invention relates to pruning equipment, in particular to flat pruning equipment for garden pruning. The flat pruning equipment comprises a pruning executing mechanism and a multi-switching-frame mechanism, the equipment can conduct pruning, recycle pruned waste branches and leaves, conduct irrigation while conducting pruning and adjust the operation height to save labor, and the pruning executing mechanism is connected with the multi-switching frame mechanism.

The invention relates to an auxiliary welding device, in particular to a supporting device for welding foundation building reinforcement. The technical problem of the present invention is how to design a kind of support device for foundation building steel bar welding that can ensure that the spacing of steel bar cages is uniform, the labor force is small, and the vertical and horizontal degree of steel bars can be guaranteed. The technical embodiment of the present invention is: a support device for foundation building steel bar welding includes a base, a fixed plate, a first disc, a hollow tube, etc.; A first disc is provided. The present invention clamps the strip-shaped steel bar through the fixing device to prevent the strip-shaped steel bar from falling off from the groove, so that the strip-shaped steel bar can be placed evenly, so that the shape of the steel bar foundation pile is round and standard, and can be blocked by the stop bar The steel bar ring prevents the steel bar ring from slipping, and the motor is started to make the worm wheel rotate slowly to drive the first disc to rotate. In this way, it is not necessary to manually rotate the first disc, which achieves the effect of labor saving.

The invention discloses a force saving floor brush, and belongs to the technical field of cleaning utensils. The force saving floor brush comprises a brush plate, bristles and a handle rod, wherein the bristles and the handle rod are arranged on the two faces of the brush plate respectively. The force saving floor brush is characterized by being further provided with a fastening device capable offastening a heavy object on the brush plate; the fastening device comprises an elastic band capable of extending the length during pulling, hooks arranged at the two ends of the elastic band and fixing heads, wherein the fixing heads are arranged on the arranging surface of the handle rod of the brush plate and used for hooking a hook; a space capable of placing the heavy object to be fastened isreserved between at least one pair of fixing heads. The force saving floor brush is simple in structure, saves time and labor and has a good cleaning effect.

The invention discloses an inflator air nozzle assembly convenient to use, characterized by comprising a housing and a nozzle element assembly for threaded connection with a tire nozzle, the housing is fixedly connected with an exhaust end of the inflator, the nozzle element assembly is rotatably disposed inside the housing and in communication with the exhaust end of the nozzle element assembly, a ratchet wheel transmission mechanism is disposed between the nozzle element assembly and the tire nozzle; the invention has the advantages that a user can inflate a tire without stretching hands between two steel wires of a tire so as to turn the inflator's nozzle and then just by holding a body of an inflating barrel or an exhaust pipe, facilitating and quickening the usage; an arm of force application is lengthened, saving labor to certain degree; in addition, the inflator nozzle assembly can be used in smaller tire spaces.

The invention belongs to the technical field of ball valves, and specifically relates to a metal sealing valve seat and a wear-resisting ball valve. The metal sealing valve seat and the wear-resistantball valve comprise a valve body I, a ball body assembly, valve seat assemblies and a manual operation assembly, wherein a valve body II is fixedly arranged on the left side wall of the valve body I,through holes are formed in the valve body II and the left and right directions of the middle part of the valve body II correspondingly, the ball body assembly is arranged at the inner wall of the valve body I, the valve seat assemblies are fixedly arranged in the left and right directions of the inner walls of the through holes, the valve seat assemblies are located on the left side and the right side of the ball body assembly correspondingly, and the manual operation assembly is fixedly arranged on the top of the valve body I. According to the metal sealing valve seat and a wear-resisting ball valve, the sealing effect is improved, the service life is prolonged, and meanwhile, the comprehensive effect of the labor-saving function is achieved.

The invention discloses an axle. The axle comprises rotating arms, a bridge with two ends respectively connected with the rotating arms in a rotating manner and a hub fixedly installed on the rotating arms and capable of moving up and down when the rotating arms rotate. In a vehicle with more than three shafts, the axle which does not have a steering and drive effect is set as the axle, so that when the axle is under a full load, a supporting effect can be realized by adjusting a rotating angle of the rotating arms, and the axle can be suspended at no load. The hub is driven by the rotating arms to move up and down, so that the main bearing capacity of the hub can be effectively concentrated onto the bridge; and moreover, the rotating arms can form a lever mechanism to achieve a labor-saving effect, and a subsequent hoisting apparatus can be prevented from providing a supporting force directly to the hub. By using the axle, the problem that the hub of the axle is inconvenient to lift can be effectively solved. The invention also discloses a suspension system comprising the axle.

The invention relates to the technical field of fastening tools, and discloses a bolt fastening tool for a back surface of a pipe fire resistance ring for a building. The bolt fastening tool comprisesa fixing tool main body, a driving hydraulic block, a hydraulic rod, a driven hydraulic block, a driven gear and a main body handle, wherein the fixing tool main body comprises a main body shell, anupper operating block, a fixed table, a sliding table, a sliding groove, a rotating bolt, a rotating table and a fixing bolt, the main body shell is a cuboid, a cuboid hole is formed in the right surface of the main body shell, the upper operating block comprises an upper operating block shell, a driving hydraulic groove, a driven hydraulic groove, a rotating hole, a rotating column and a tooth sliding groove, the upper operating block shell is a cuboid, the rotating hole is a circular hole, the rotating hole is formed in the rear end of the upper surface of the upper operating block shell, the size of the main body handle is the same as that of the rectangular hole formed in the right surface of the main body shell, a hand-held hole is formed in the right end of the surface of the main body handle, and the handheld hole is a rectangular hole. The bolt fastening tool achieves the purposes of being labor-saving and capable of being used in various situations.

The invention relates to a force arm actuated power generating device. The force arm actuated power generating device comprises a force arm, a first transmission shaft, a power generating speed-increasing box, a second transmission shaft, a power generator, two drive sources, a flywheel, a flywheel speed-increasing box and a flywheel transmission shaft, wherein the first transmission shaft is vertically fixed to the center of the force arm; the first transmission shaft is in engaged connection with the second transmission shaft; the second transmission shaft is in detachable connection with an input end of the power generating speed-increasing box through the flywheel speed-increasing box; the two drive sources act at the two ends of the force arm, and are used for driving the force arm to rotate. According to the force arm actuated power generating device provided by the invention, the drive sources only act at the end parts of the force arm, so that the energy output from the drive sources can be transmitted to the power generator maximally, and the maximization of energy conversion is realized.

The invention relates to a power supply assembly of a suspension type electronic board. The power supply assembly comprises a conductive elastic sheet, a clamping seat, a rotating seat, a PCB, a sealing cover and a flexible wire, a circular through hole is formed in the clamping seat, and a supporting edge strip protruding inwards is arranged on the edge of the circular through hole; the rotating seat is sleeved in the clamping seat, a clamping head at the upper part of the rotating seat is positioned above the clamping seat, a supporting plate at the middle part of the rotating seat is supported on the supporting edge strip, and a connecting body with a through groove at the lower part of the rotating seat extends to the lower part of the clamping seat; the PCB is accommodated in the through groove, and the conductive elastic sheet is fixedly connected with the PCB; a center round hole is formed in the bottom surface of the sealing cover, and a penetrating groove penetrating through the upper and lower surfaces and the center round hole is formed in the side surface of the sealing cover; the flexible wire penetrates through the penetrating groove and extends into the sealing cover, the top end of the flexible wire is connected with the PCB in an inserted mode, the flexible wire is hung on the bottom face of the sealing cover through a hanging piece, and the portion, located below the sealing cover, of the flexible wire is provided with a fixing piece connected with the electronic board body. And the sealing cover is sleeved outside the connecting body and is fixedly connected with the connecting body.

The invention discloses a construction method of a steel bar bending device, wherein the steel bar bending device comprises a main frame, a main auxiliary shaft connected to the inside of the main frame, a sub frame connected to the end of the main frame, and an intersection section connected to the main frame and the sub frame The bending mandrel shaft and the auxiliary auxiliary shaft connected to the inside of the sub-frame; during construction, the bending mandrel is rotationally connected to the main frame and the sub-frame, the main auxiliary shaft is rotationally connected to the main frame, and the auxiliary auxiliary shaft is rotationally connected to the sub-frame ; Through the setting of the bending mandrel, the main auxiliary shaft and the auxiliary auxiliary shaft, during construction, the steel bar will not slip or pop up when it is bent, and the bending mandrel, the main auxiliary shaft and the auxiliary auxiliary shaft are all rotatable connections, which is convenient for the reinforcement The uniform stress during bending achieves labor-saving effect; the setting of shafts with different diameters on the bending mandrel can adapt to the bending of steel bars with different diameters, and can be more suitable for site construction conditions; It can be set to adapt to different degrees of bending of steel bars during construction.

The invention discloses a labor-saving brush for cleaning up dust and wool of a woolen blanket. The labor-saving brush comprises a brush handle, wherein the front face of the brush handle is providedwith concaves, the back face of the brush handle is provided with a socket, the bottom of the brush handle is provided with a switch, the inner portion of each concave is provided with an anti-slip thread, the inner portion of the brush handle is provided with a storage battery, one side of the storage battery is provided with a motor, an output end of the motor is rotationally connected with a rotating shaft through a coupler, one end of the brush handle is provided with a brush cylinder, the end, away from the motor, of the rotating shaft penetrates through the inner portion of the brush handle and extends to the outer portion of the brush handle, and the end, away from the motor, of the rotating shaft penetrates through the outer portion of the brush cylinder and extends to the inner portion of the brush cylinder. The labor-saving brush for cleaning up dust and wool of the woolen blanket has the advantages that the brush does not need to be vertically rolled by manpower, thereby achieving the labor-saving action, dust and fallen wool on the woolen blanket can be cleaned up, and the brush handle cannot fall off due to slip of the hand.