345results about How to "Easy to disassemble and install" patented technology

The invention discloses portable professional photographic device and system. The device comprises a background unit, a light unit, a comprehensive control unit, a filming unit, a power supply unit and a structure unit, wherein the background unit comprises a background, a background scroll and a background scroll motor, the light unit comprises a filming lamp, a filming lamp control module and a filming lamp guide rail, the comprehensive control unit comprises a smart phone, a tablet computer, an ordinary computer, professional software, various data interface cables and wireless interfaces, the filming unit comprises a camera, a video camera, a tripod and a shooting head, the power supply unit comprises a lithium battery, a storage battery, solar energy and alternating current, the structure unit comprises four uprights and four cross rods, the uprights and the cross rods are fixedly connected in a detachable manner, and the surrounding and the top of the structure unit can be shielded by curtains. By portable professional photographic device, high-quality pictures can be taken without depending on level of photographers.

The invention relates to a pressing mechanism for an airplane titanium alloy part processing tool table, in particular to an auxiliary device for a machine tool processing part. The pressing mechanismcomprises four parts, which are separately a pedestal regulating and fixing mechanism, a left side lifting pressing mechanism, a right side lifting pressing mechanism and an X-direction pressing mechanism, wherein the left side lifting pressing mechanism and the right side lifting pressing mechanism are mounted and fixedly arranged on the pedestal regulating and fixing mechanism, and define a threaded-transmission and spline-transmission matching relationship with the pedestal regulating and fixing mechanism; and the X-direction pressing mechanism is mounted and fixed on the pedestal regulating and fixing mechanism. The pressing mechanism can be manually and quickly regulated, and a motor drives equipment to realize automatic regulation on a clamping dimension and a clamping position as well as clamping with set load; and the motor drives blank to lift and rotate, so that multi-surface processing is realized.

The invention discloses an agricultural field quantitative watering and liquid fertilizer irrigating device based on the internet of things. The agricultural field quantitative watering and liquid fertilizer irrigating device based on the internet of things comprises a main three-way pipe, wherein a pipe orifice of the main three-way pipe is provided with a liquid fertilizer delivering pipe; and one end of the liquid fertilizer delivering pipe is provided with a liquid fertilizer storage assembly. The agricultural field quantitative watering and liquid fertilizer irrigating device based on theinternet of things is scientific and reasonable in structure and safe and convenient to use. The liquid fertilizer storage assembly is arranged, through effects of a stirring shaft, a rotating wheel,a stirring wheel and stirring blades, liquid fertilizers are convenient to stir, and are mixed uniformly, the fertilizer effect is improved, through the action of floating blocks, the liquid level condition inside a liquid fertilizer tank can be visually observed by a user, therefore, whether raw materials need to be added or not is judged, and through effects of a bearing wheel, a linkage rod, afirst belt pulley, a second belt pulley and a linkage belt, liquid in the liquid fertilizer tank is stirred automatically by converting potential energy generated by falling of the liquid into kinetic energy, the liquid in the liquid fertilizer tank is prevented from depositing, and resources are saved.

The invention discloses a logistics transport case capable of being stacked and combined for use. The logistics transport case comprises a logistics case body and a case cover. The logistics case bodyis formed by an upper case body, a lower case body and a connecting layer together. The connecting layer is located between the upper case body and the lower case body. Clamp plates are arranged on the lower surface of the lower case body. A through hole is formed between the clamp plates. A transverse shaft is mounted in the lower case body. The case cover is mounted at the top end of the uppercase body. A lock hole is formed in the upper half segment of the upper case body. According to the logistics transport case capable of being stacked and combined for use, the inner storage space of asingle logistics case can be adjusted, the application range is wider, the case bodies can be stacked and placed more conveniently, and the storage spaces of the upper case body and the lower case body can be stacked through the stacking manner and the improvement of the inner structure; and by means of redesign of the fixed structure of the case cover, the logistics case can be closed more stably and conveniently, and use is more convenient.

The invention discloses a simple hydrological-hole dredging device. The simple hydrological-hole dredging device comprises a first dieselized pumping machine, a second dieselized pumping machine and a stirrer. The first dieselized pumping machine is connected with hard plastic pipes and used for pumping out underground water at the bottom of a hydrological hole. The second dieselized pumping machine is connected with soft plastic pipes and used for injecting water into the hydrological hole. The stirrer comprises a thin rope and a metal rod. The thin rope is connected with one end of the metal rod. A cloth strip or a sponge is arranged at the other end of the metal rod and used for stirring the underground water in the hydrological hole. According to the simple hydrological-hole dredging device, circulating of the water in the hydrological hole is achieved through the two dieselized pumping machines; and as the underground water in the hydrological hole is stirred through the stirrer, the hole dredging efficiency is greatly improved, and the hole dredging time is shortened. The simple hydrological-hole dredging device is simple in structure and convenient to install, and can be repeatedly used.

The invention discloses a cylinder-moving conveying type packaging bag drier which comprises a rack and a main board. A transverse moving through groove is formed in the middle of a top plate of the rack, rodless cylinders are fixed to the bottom face of the top plate of the rack, and guiding connection plates are fixed to sliding blocks of the rodless cylinders. Each guiding connection plate upwards stretches out of the transverse moving through groove, and an upper horizontal plate is fixed to each guiding connection plate. Guiding slide blocks are fixed to the left side and the right side of the bottom face of each upper horizontal plate, guiding rails are fixed to the left side and the right side of the top face of the top plate of the rack, sliding grooves are formed in the top faces of the guiding rails, and the guiding slide blocks are inserted into the sliding grooves. Movable connecting blocks are fixed to the left ends and the right ends of the front and back sides of the main board. The rodless cylinders push the upper horizontal plates to move rapidly and stably; meanwhile, heating pipes are fixed to the main board, the main board can move up and down to adjust the vertical positions of the heating pipes, so that heat is adjusted; and the heating pipes are fixed in an insertion mode through mounting blocks and limiting blocks, and the heating pipes are convenient to dismount and mount.

The invention discloses automatic grain charging and winnowing equipment which comprises a winnowing barrel, a husk breaking barrel, a motor, an L-shaped supporting frame, a rack, a discharge pipe, anelectric push rod, a material stopping block, a timing controller, a limiting hole, supporting legs, a fan, a first collecting hopper, a second collecting hopper, a third collecting hopper, a fourthcollecting hopper, material discharge pipes, switch valves, a threaded connection pipe, a cloth bag, baffles, a threaded hole, a shaft seal, a first rotary shaft, connecting rods, swinging arm rods, asecond rotary shaft, mixing rods, hinge shafts and husk discharge small holes. The automatic grain charging and winnowing equipment saves time and labor, is high in working efficiency, good in separating effect, high in automaticity and convenient and quick to use, operate and mount, and can classify and collect grain kernels having different saturation degrees.

The invention discloses an automatic pipe cutting machine and an operation method. The automatic pipe cutting machine comprises a rack. A first platform and a second platform are fixed to the top of the rack. The first platform is provided with a supporting assembly for supporting a pipe fitting. The second platform is provided with a conveying device for pushing and feeding the pipe fitting. Thetail end of the conveying device is provided with a fixing and clamping device for clamping and fixing the pipe fitting. The side face of the second platform is provided with a cutting device for cutting the pipe fitting. The supporting assembly comprises a first supporting plate and a second supporting plate. A first limiting groove is machined in the center position of the top of the first supporting plate, and a second limiting groove is machined in the center position of the top of the second supporting plate.

The invention discloses an LED lamp mounting structure comprising a bottom plate. A groove is formed in the lower end of the bottom plate, and rubber blankets are fixedly connected with the inner wallof the groove; a lamp plate is disposed in the groove, and two device cavities are arranged in the lamp plate; guiding grooves are formed in the opposite inner walls of the device cavities, and guiding rods are disposed in the guiding grooves, and both ends of the guiding rods are fixedly connected to the inner walls of the guiding grooves; the guiding rods are sleeved with movable blocks, and the movable blocks are movably connected with the guiding rods; the portions, located between the movable blocks and the inner walls of the guiding grooves, of the guiding rods are provided with springs; and movable rods are arranged in the device cavities, two ends of each of the movable rods are correspondingly and fixedly connected to the sidewalls of two movable blocks, and push rods are arranged on the side walls of the movable rods. According to the LED lamp mounting structure, the structure design is reasonable, the operation is simple, the lamp plate is easy to be disassembled and installed, and the installation efficiency of the LED lamp is greatly improved.

The invention discloses a multifunctional water sample collector, comprising a closed box body. A rechargeable battery and a water pump are fixed in the cavity of the box body. The water pump is driven by a first direct current motor. A water inlet of the water pump is connected with a water inlet pipe, and a water outlet of the water pump is connected with a water outlet pipe. The water inlet pipe is connected with a corrugated pipe after hermetically passing through a bottom plate of the box body. The water outlet pipe is connected with a conveying hose. The free end of the conveying hose can be screwed into a set of sample bottles that can collect different types of samples. Telescopic rods are symmetrically arranged on the outer surface of the bottom plate of the box body and outside the corrugated pipe. The free ends of the telescopic rods are fixedly connected with a connecting plate. The free end of the corrugated pipe is fixedly connected to the middle of the connecting plate.The corrugated pipe can be driven by the two telescopic rods to extend and retract, and can be driven by two joint balls to form different angles with the bottom plate of the box body. A float is fixedly connected to the middle of the top plate of the box body. A fixed ring is arranged at the upper end of the float. A traction rope is tied to the fixed ring. The device is simple in structure and easy to assemble and disassemble.

The invention discloses a height-adjustable clamping mechanism used for machining of casting dies. The height-adjustable clamping mechanism used for machining of the casting dies comprises a lifting frame and a bottom mounting frame. Vertical side supporting plates are fixed to the top surfaces of the left side and the right side of a top plate of the bottom mounting plate. Upper horizontal platesare fixed to the upper portions of the two vertical side supporting plates and are close to wall surfaces. Two vertical screws are separately close to the corresponding vertical side supporting plates. The top ends of the vertical screws are hinged to the corresponding upper horizontal plates through bearings. The bottom ends of the vertical screws are hinged to the top plate of the bottom supporting frame through bearings. Lifting adjustment motors are separately fixed to the bottom surfaces of the left side and the right side of the top plate of the bottom supporting frame. According to theheight-adjustable clamping mechanism used for machining of the casting dies, the casting dies can be automatically clamped and fixed, the height can be adjusted according to different heights of users so as to meet using requirements of the users with different heights, and subsequent polishing and cleaning by workers are facilitated; and the height-adjustable clamping mechanism is convenient tomount and dismount.

The invention provides a water valve and a water dispenser. The water valve comprises an upper support, a lower support, a valve element, a seal part, a spring and a water pipe. A water inlet is formed in the upper support. The lower support is connected with the upper support. A water outlet and an air hole are formed in the lower support. The air hole is communicated with the water outlet. One end of the valve element is connected with the upper support, and the other end thereof is fixedly connected with the lower support. The valve element can move relative to the valve element so as to control connection and disconnection between the water inlet and the water outlet. The water valve has the advantages that when the water valve is not in a discharge state, the water outlet is communicated with the atmosphere through the air hole in the lower support, the pressure inside the water outlet pipe is allowed to be the same as the atmosphere pressure, residual water in the water outlet pipe flows out of the water outlet pipe fast under the action of gravity, and accordingly cleanness and dryness of the water outlet pipe are kept, the problem that drinking water is contaminated due to the fact that the residual water drops in the water outlet pipe are contained by the dust and bacteria in the air is solved, and market competitiveness of the water valve is increased.

The invention discloses a movable field X-ray rolling shooting device for a pipeline, and belongs to the technical field of flaw detection. The movable field X-ray rolling shooting device for the pipeline comprises a supporting frame, an operating mechanism and a walking mechanism, wherein the supporting frame is mounted on the external surface of a to-be-detected pipeline; the operating mechanism is mounted on the supporting frame; the walking mechanism is located between the operating mechanism and the to-be-detected pipeline. The movable field X-ray rolling shooting device for the pipeline, which is provided by the invention, is reasonable in structural design and is simple to make; not only can the special putting up of a detecting platform for an X-ray flaw detector be avoided and can the engineering cost be reduced, but also the all-around flaw detection for welds on the pipeline is realized; when the flaw detection is carried out on the welds on the same pipeline, the trouble of repeated disassembly and assembly is omitted; the flaw detection efficiency is greatly promoted; the engineering progress is quickened; a detector is enabled to keep far away from an area to be subjected to the flaw detection in a flaw detection process; the injury of radiographic flaw detection to the detector is reduced; a strong guarantee is provided for engineering safety.

The invention provides a casting frame fixed formwork structure for civil engineering construction. The casting frame fixed formwork structure comprises a plurality of formworks, wherein a plurality of formworks define a cylindrical cavity for pouring, a plurality of formworks are connected by connecting members, the outer side of the connecting members are provided with adjusting frames, the adjusting frames are connected with the connecting members through plurality of threaded components, the multiple formworks are inserted-connected into the U-shaped insert-connecting grooves of the L-shaped connecting members, inner baffles are clamp-connected into grooves, fixed connection is first performed, meanwhile the adjusting frames are simultaneously clamp-connected to the multiple threadedrods of the connecting members through multiple clamp-connecting grooves I and multiple clamp-connecting grooves 2, the adjusting frames are locked by locking nuts, and the connecting members are fixedly connected by locking blocks under the locking of the locking nuts to prevent the formworks from offsetting or an infirm connection phenomenon; the adjustment frames are matched with insert-connecting blocks on cross beam columns 1 and the insert-connecting grooves formed in cross beam columns 2, and a telescopic function of the adjusting frames can be achieved.

The invention discloses a yarn winding device for textile machinery. The yarn winding device for the textile machinery comprises a bracket, a wire assembly and a winding assembly, wherein the wire assembly comprises a wire roller, an adjusting frame and a brush assembly, the winding assembly is located at the rear side of the wire assembly, and the winding assembly comprises a support base, a winding roller, a reel and a compression assembly. The yarn winding device provided by the invention guides yarns to be uniformly wound on the surface of the reel by the wire assembly, and burrs and impurities on the surface of the yarn can be removed through the upper brush assembly when the yarn passes through the wire roller, so that the surface of the yarn is smoother, softer and flatter, which ismore conducive to the next winding treatment, while the winding assembly can be adjusted according to the actual length of the reel, which is suitable for winding treatment on different lengths of reels, and the two sides of the reel can be limited and blocked, so that the winding operation is convenient, the yarn is avoided falling from the two ends of the reel during the winding process, the incidence of accident is reduced, and the overall compactness of the bobbin yarn after winding is improved.

A steering column type electric power assisting device comprises a shell, wherein a hollow inner rotor brushless motor is installed in the shell, a coil stator of the hollow inner rotor brushless motor is connected with the inner wall of the shell, a shaft sleeve is arranged at the center of a magnetic steel rotor of the hollow inner rotor brushless motor, and an intermediate shaft is installed in the shaft sleeve and fixedly connected with the shaft sleeve; an upper cover is installed on the shell, located at one end of the intermediate shaft and connected with a steering shaft of a vehicle steering column, a torsion rod and a torque angle sensor are installed between the steering shaft and the intermediate shaft, one end of the torsion rod is fixedly connected with the steering shaft, and the other end of the torsion rod is fixedly connected with the intermediate shaft. The device is small in occupied space, interference with peripheral parts is avoided, dismounting and mounting are easy, and the torque of the motor is amplified through a planetary gear reducer. Compared with existing electric power assisting devices, the electric power assisting device has the advantages that mechanical transmission efficiency is improved greatly, and vehicle steering can be conducted more flexibly and easily with higher stability.

The invention relates to a container trailer being convenient to pack and transport, which comprises a chassis, a top tray, four upright posts which are respectively arranged on four corners and detachably join the chassis and the top tray, and wall boards which are arranged between the chassis and the top tray to form four side walls of the container trailer; four corners of both the top tray and the chassis are provided with a connection column which is connected with a corresponding upright post, the upper end of the upright post is provided with a vertical connection part which is closely propped against one edge of the connection column and a horizontal carrying part which is vertical to the connection part and carries the connection column of the top tray, the lower end of the upright post is provided with a vertical connection part which is closely propped against one edge of the connection column of the chassis and a horizontal joining part which is vertical to the connection part and is supported by a top surface of the connection column of the chassis, and the connection columns of the chassis and the top tray are respectively connected with the connection parts of the upright posts through a plurality of fixed pieces.

The invention provides a frameless type multi-dimensional photographing system. The frameless type multi-dimensional photographing system is used for collecting panoramic pictures. The frameless type multi-dimensional photographing system is characterized by comprising a frameless type fixing device. The frameless type fixing device comprises a barrel capable of rotating around the horizontal axis, the barrel is of a cavity structure, wherein the two sides of the barrel are opened, at least one camera is fixed to the barrel wall of the barrel, and a product placing table used for placing a to-be-photographed object is fixed to the interior of the barrel; and a flash lamp used for synchronously working with the at least one camera is arranged on one of the two sides of the barrel, and reflective cloth or a flash lamp similarly used for synchronously working with the at least one camera is arranged on the other one of the two sides of the barrel. According to the frameless type multi-dimensional photographing system, multi-point continuous collecting of the object product can be achieved, the process is completely automated, a collected product picture group is regular, and further processing and displaying are facilitated.

The invention discloses an engineering rotor-type unmanned aircraft which comprises a main frame, an engine assembly, a rotor, a tail transmission and an undercarriage, wherein the main frame comprises a main shaft, side plates arranged on both sides of the main shaft in opposite, a fuel tank fixedly connected to the outer side of the side plates, and a machine frame fixed beam which is arranged at the lower end of the main frame and fixedly connected with the side plates; the main shaft is provided with a transmission component. The tail transmission comprises a tail pipe, a horizontal tail horizontally arranged on the tail pipe, a vertical tail which is perpendicular to the horizontal tail and is arranged on the tail pipe, and a tail wave box component arranged at the tail of the tail pipe, wherein the tail wave box component is provided with a tail rotor. The undercarriage is provided with a mounting base, and is detachably connected with the main frame through the mounting base. The real load of the aircraft with the structure can reach 30KG; the aircraft can implement vertical takeoff and landing, and the flight speed and flight altitude can be controlled freely; the aircraft has the advantages of low manufacturing cost, high flexibility, high personnel operation safety and high universality.

The invention discloses an assembled hanging structure of a side slotted wall panel. The assembled hanging structure comprises a cover plate and a wall panel, a variable mounting opening device is arranged on the side wall of the cover plate, a fixing device is arranged between the cover plate and the wall panel, a wiring groove is arranged on the side wall of the wall panel, and a hanging deviceis arranged on the side wall of the wall panel. A wall is prevented from being grooved and punched, only the wall panel with the wiring groove needs to be fixed on the wall surface, then a circuit isarranged in the wiring groove, meanwhile, the wall surface does not need putty embedding and sand leveling, no dust is generated, the health of operators and surrounding residents is not endangered, the cover plate and the wall panel are convenient to disassemble and install, the processing period can be shortened, the circuit is convenient to overhaul, construction auxiliary materials such as paint and glue are not needed in the decoration process, so that the pollution of the decoration to the environment is reduced, the cover plate and the wall panel can be recycled as long as the whole structure is not damaged, building garbage is avoided, and the use is environmentally friendly.

The invention discloses a high-pressure ultra-low-temperature type all-metal hard sealing butterfly valve. The high-pressure ultra-low-temperature type all-metal hard sealing butterfly valve comprises a valve body, a valve rod, a valve plate and a valve seat, wherein an inner secondary opening is formed at one end of the valve body, the valve seat can be embedded into the inner secondary opening, and the valve seat is embedded into the inner secondary opening in a matched mode, and is fixedly connected with the end face of the inner secondary opening through bolts. Due to the fact that the bolts are adopted by the high-pressure ultra-low-temperature type all-metal hard sealing butterfly valve to fixedly connect the valve seat and the valve body, disassembly and assembly are convenient, when the sealing face of the valve seat goes wrong, the valve seat can be simply replaced, and site operation is simple. Meanwhile, independent low-temperature preprocessing can also be carried out on the valve seat to eliminate stress in the high-pressure low-temperature working condition, the valve seat is fastened through the bolts, the sealing effect between the valve seat and a brake plate can be finely adjusted through cooperation of the bolts, and adjustability of the high-pressure ultra-low-temperature type all-metal hard sealing butterfly valve can be effectively improved. Due to the fact that the design of the inner secondary opening is adopted, influence of the valve seat on an inner flowing channel is avoided, and flow can be effectively increased.

The invention discloses a fixing device for waterproof detection of engineering construction materials. The fixing device comprises a machine body, a supporting frame and a water bucket, a water tank is mounted above the machine body, a water filling nozzle is arranged above the water tank, a water draining port is arranged in the middle below the water tank, a dropper is connected below the water draining port through a connecting pipe, and a nozzle is arranged below the dropper; the supporting frame is mounted inside the machine body, a fixing plate is mounted above the supporting frame through fixing bolts, a coating layer is arranged on the upper surface of the fixing plate, the water bucket is arranged below the fixing plate, humidity sensors are arranged on two sides of the bottom of the water bucket, a water draining port is arranged in the middle of the bottom of the water bucket, a filter is arranged on the right side below the water bucket, the right side of the filter is connected with a water pump through a water pipe, and the water pump is connected with the right side of the water tank through a water pipe. The filter and the water pump are mounted at the bottom in the machine body, and used water can be collected and filtered for reuse, so that a lot of water resources are saved, and detection cost is lowered.

The invention discloses a 360-degree freely rotary-type wing chun wooden dummy. The wing chun wooden dummy comprises an upper dummy body and a lower dummy body, wherein the upper dummy body is provided with several dummy hands, and the lower dummy body is provided with dummy feet; the upper part of the lower dummy body is connected to the lower part of the upper dummy body through a connecting component, and the upper dummy body rotates around a central shaft of the connecting component. According to the 360-degree freely rotary-type wing chun wooden dummy, the upper dummy body and the lower dummy body are connected together in a rotating mode through the connecting component so that the upper dummy body can 360-degree rotate around the central shaft in the beating process, the actual combat capacity is improved, and the training effect is strengthened; in addition, the dummy hands are installed in through holes of the upper dummy body through an installing part, the two ends of the dummy hands are symmetrically arranged so that the two ends can be used, the number of independent dummy hands is reduced, and the installation is simplified; in addition, the 360-defree freely rotary-type wing chun wooden dummy is convenient to disassemble and assemble and is convenient to carry.

The invention discloses a public transport body temperature detection device based on the Internet of Things. The device comprises a security check door body, a component box is installed at a top endof the security check door body, a first body temperature detector is mounted at a bottom end of the component box; a control module is mounted in the component box; and a heat dissipation mechanismis installed at a top end of the component box, second body temperature detectors are fixedly installed on two sides of an inner wall of the security check door body, an isolation mechanism is installed at a top end of the security check door body, the isolation mechanism internally comprises first rotating shafts fixedly installed on two sides of the security check door body, and other sides of the first rotating shafts are rotationally connected with supporting rods. In the present invention, the body temperature of people in the security check door body can be detected through the first body temperature detector and the second body temperature detectors; when the body temperature is abnormal, a preset instruction in the control module can control a first motor to work, and the first motor drives a shielding fence to rotate to shield an exit end of the security check door body such that the people are prevented from passing through, and the exit end is sealed to prevent the people from forcibly going away from a checkpoint.

The invention discloses a computer CPU radiating fan for facilitating ash removal, which comprises a master board main body; the upper end of the master board main body is provided with a CPU main body; the upper end of the master board main body is fixedly connected with two L-shaped plates, the two L-shaped plates are fixedly connected to both sides of the CPU main body; two L-shaped plates arefixedly connected with two supporting plates through a locking screw, one side in opposite of each supporting plate is provided with a guide slot, two guide slots are provided with guide rods; both ends of the guide rods are fixedly connected to upper and lower inner walls of the guide slots, and two guide rods are commonly sleeved with installing plates; the installing plates are moveably connected with the two guide rods, the upper end of the installing plate is provided with a radiating slot in a penetrating manner along the vertical direction, an anti-dust screen is arranged in the radiating slot; the upper end of the anti-dust screen is provided with a first radiating device, the lower end of the installing plate is fixedly connected with a radiating fan. The computer CPU radiating fan is reasonable in structure design, simple in operation, good in radiation, convenient to dismount and mount, rapid in ash removal, and cannot damage CPU.

A steering tube type electric power assisting device comprises a shell. A planetary gear reducer is mounted at one end of the shell. A transverse partition board is arranged in the shell. A hollow internal rotor brushless motor is mounted in the shell and located between the transverse partition board and the planetary gear reducer. A coil stator of the hollow internal rotor brushless motor is connected with the inner wall of the shell. A shaft sleeve is arranged in a center inner hole of a magnetic steel rotor of the hollow internal rotor brushless motor. The shaft sleeve is fixedly mounted on a sleeve shaft. One end of the sleeve shaft is connected with the transverse partition board of the shell through a first location bearing. According to the steering tube type electric power assisting device, the hollow internal rotor brushless motor and the planetary gear reducer are arranged coaxially with a steering tube, so that the steering tube type electric power assisting device occupies small space, does not interfere with peripheral components, can be easily arranged on a car and is easy and convenient to dismount, mount and operate. During motor running, torque of the motor is amplified through the planetary gear reducer, and the rotational speed of the motor is decreased through the planetary gear reducer, so that the effect of power assistance is achieved. The mechanical transmission efficiency is substantially improved, and the steering tube type electric power assisting device can make steering operation of the car more flexible, easier, more stably and the like.

The invention provides a supporting component used for a similar simulation test of a high-speed rotor and a testing method, and belongs to the field of similar design of the high-speed rotor. The supporting component comprises a bearing, multiple rotor cages and a testing platform support. The bearing is used for supporting the simulation rotor to rotate, inner diameters of the rotor cages are identical and are matched with the outer diameter of the bearing, the rigidities of the rotor cages are different, in the test, different rotor cages are selected to sleeve the exterior of the bearing respectively, and the selected rotor cages and bearing are fixed through the testing platform support to simulate different supporting rigidities. The supporting rigidity of the provided supporting component can be two times or above that of a rotor original part, and the supporting component has high adjustment capacity for the supporting rigidity of a rotor system.

The invention discloses an engineering rotor-type unmanned aircraft which comprises a main frame, an engine, a rotor, a tail transmission, an undercarriage and a spinner, wherein the main frame comprises a main shaft and upper side plates arranged on both sides of the main shaft in opposite; at least two fuselage columns connected with the upper side plates are arranged between the two upper side plates; two lower side plates are connected with a back equipment plate. The rotor is connected with the main shaft, and comprises a rotor head, an aileron frame and a pair of main rotors; the main rotors are fixedly connected to both sides of the rotor head; a pair of auxiliary rotors are sheathed on the aileron frame; the lower part of the rotor head is connected with a cross disk; a phaser is connected between the rotor head and the cross disk. The real load of the aircraft with the structure can reach 10KG; the aircraft can implement vertical takeoff and landing, and the flight speed and flight altitude can be controlled freely; the aircraft has the advantages of low manufacturing cost, high flexibility, high personnel operation safety and high universality.

The invention discloses a movable shooting device for on-site pipeline flaw detection and belongs to the technical field of flaw detection.The movable shooting device comprises a supporting frame, a running mechanism and a traveling mechanism, the supporting frame is mounted on the outer surface of a to-be-detected pipeline, the running mechanism is mounted on the supporting frame, and the traveling mechanism is positioned between the running mechanism and the to-be-detected pipeline.The movable shooting device is reasonable in structural design, setting up of a detection platform special for an X-ray flaw detector can be avoided, engineering cost is reduced, and omnibearing flaw detection of pipeline welding joints is realized; when flaw detection is performed on welding joints on a same pipeline, trouble of repeated mounting and demounting is omitted, flaw detection efficiency is improved greatly, engineering process is accelerated, detection personnel can be away from a flaw detection area in the flaw detection process, damage to the detection personnel by ray flaw detection is reduced, and a powerful guarantee is provided for engineering safety.

The invention provides a lifting auxiliary device and a lifting operation method of part to be operated. The lifting auxiliary device is matched with a steel wire rope to which the part to be operated is hung, so that the part to be operated ascends or descends on a body to operated. The lifting auxiliary device comprises a holding mechanism, a supporting frame and a pulley assembly. The holding mechanism is installed on the body to be operated and used for supporting the supporting frame and preventing toppling. The supporting frame is supported on the holding mechanism and used for supporting the pulley assembly. The pulley assembly is installed on the top of the supporting frame and used for supporting the steel wire rope and changing the direction when the steel wire rope winds around the pulley assembly. In the using process, the lifting auxiliary device is installed on the body to be operated, the steel wire rope is connected with the part to be operated, the steel wire rope winds around the pulley assembly and is driven to ascend or descend through the drive mechanism, and the part to be operated is lifted. The device is simple in structure and can adapt to an area with a narrow space, and thus large crane mechanisms like a lifting machine can be omitted. Moreover, the lifting auxiliary device is directly installed on the body to be operated, and a supporting mechanism is omitted.