72results about How to "Large operating radius" patented technology

The invention discloses a wireless audio and video transmission system for transmission line helicopter routing inspection. The system comprises a helicopter airborne system, a ground station system and a command center end system, wherein the helicopter airborne system is connected with the ground station system in a wireless communication way; the ground station system is connected with the command center end system in an industrial Ethernet way; the helicopter airborne system further comprises a front end video acquisition and storage system, a video transmission system and a voice intercom system; the ground station system further comprises an audio and video receiving system, a local video monitoring system, a VOIP telephone system and an optical fiber transmission system; and the command center end system further comprises a video playing system, a picture recording system and a VOIP telephone system. Due to the adoption of the technical scheme, the system not only can change and improve the conventional line walking mode and work efficiency, but also can achieve real-time multi-channel video transmission, storage and voice intercom.

The invention relates to a municipal pipeline dredging device and a municipal pipeline dredging vehicle. The municipal pipeline dredging device comprises a pipeline robot, a power line set and a pipe winder for controlling the power line set to be wound and telescopic, wherein the power line set is used for providing energy for a robot system and control cables. The municipal pipeline dredging device and the municipal pipeline dredging vehicle can adapt to various silting up conditions, sludge is scattered and milled through the dredging device and scraped to an inspection shaft, power and control cables required by the dredging device can rotate through positive 360 degrees and negative 360 degrees around a rotation driving axis through the pipe winder, the power and control cables can be telescopic in a pipe winder base sleeve, the operation radius is large, and the power and control cables can be effectively aligned with a construction station to provide good conditions for the pipeline robot.

The invention discloses an emergency medical aid UAS (Unmanned Aircraft System) based on a 3G / 4G network. The emergency medical aid UAS comprises a six-rotor unmanned gyroplane body, a first-aid kit and an unmanned gyroplane ground station, wherein the six-rotor unmanned gyroplane body is provided with the first-aid kit and communicates with the unmanned gyroplane ground station. By use of the 3G / 4G network, the operation radius of the unmanned gyroplane can be increased, the emergency medical aid UAS is capable of flying between a hospital and a place in which a patient is located in a point-to-point manner, rapidly feeding medical rescue medicines and instruments, and further performing rescue guidance on non-medical personnel on site by virtue of a display device and a loudspeaker; under a situation that ground traffic is jammed and rescue vehicles have difficulty in rapidly arriving at the site, the corresponding rescue medicines and instruments can be carried by the emergency medical aid UAS to arrive at the site firstly, and rescue is performed on the patient under the guidance of medical personnel at a far end, so that precious time is gained for rescue.

The invention discloses a remotely-controlled waterborne rescue device which is composed of a rescue device and a remote controller, wherein the rescue device is provided with a life buoy capable of being inflated quickly; a pump-jet propulsor of the rescue device is positioned at the rear part in a shell, and a tail pipe passes through a round hole in the rear end wall of the shell to extend to the outside; the pump-jet propulsor is connected with an accumulator through an electronic speed regulator so as to supply power, and the electronic speed regulator receives a control signal of a signal receiver to regulate the speed of the pump-jet propulsor so as to control the navigational speed; a steering engine is connected with the signal receiver to receive a control instruction sent by the remote controller to change the direction of the tail pipe of the pump-jet propulsor so as to control the navigational direction of the waterborne rescue device; and the remote controller is provided with a navigational direction and navigational speed control rocker for transmitting navigational direction and navigational speed control instructions, and target feedback information is searched through a camera at the front end of the rescue device. The rescue device is simple in structure and large in operation range; the remote controller is flexible in operation and controllable in recovery; and when the rescue device sails to a target falling into water, a trigger switch is controlled by the remote controller to inflate the life buoy so as to rescue people falling into water.

The invention provides a water hose distribution vehicle. The water hose distribution vehicle comprises an automobile chassis, a reel mechanism, a reel bearing mechanism, a hoisting mechanism and a reel winding mechanism. The reel bearing mechanism and the reel winding mechanism are arranged on the automobile chassis. The reel bearing mechanism is used for bearing the reel mechanism, and the reel winding mechanism is used for driving the reel mechanism to rotate. The reel mechanism comprises a reel shaft and a reel, wherein the reel is arranged on the reel shaft in a sleeving manner and is in linkage with the reel shaft. The hoisting mechanism can hoist the reel mechanism back and forth between the reel bearing mechanism and the reel winding mechanism. The water hose distribution vehicle has the beneficial effects that when the hose distribution vehicle works, a water hose can be rapidly laid and recovered, the number of stored water hoses is large, the water hose is used in cooperation with the vehicle, the working radius of the water supplying and draining can be increased, the mechanical degree is high, the working intensity of manual water hose carrying can be relieved, and the situation that the service life is shortened as the water hose is abraded and leaks water due to manual dragging and laying can be prevented.

The invention provides a tower crane construction method of a large steel structural air cooling tower. The tower crane construction method comprises the following steps that (S1) two tower cranes are provided and located in an area of the air cooling tower; (S2), linear movement of the tower cranes is achieved through a rail type moving support, further hoisting of a triangular hoisting unit of a circular tapered section is conducted through linear movement and hoisting action of the tower cranes, the two tower cranes conduct symmetrical hoisting, and finally hoisting construction of the circular tapered section is completed; (S3), the positions of the tower cranes are fixed, further hoisting of a triangular hoisting unit of a cylinder section is conducted through action of the tower cranes, the two tower cranes conduct symmetrical hoisting, and after hoisting every layer of the cylinder section is finished, and hoisting of a triangular hoisting unit of an reinforcing ring corresponding to the layer is conducted through action of the tower cranes, so that the reinforcing ring is connected to the inner side of the cylinder section through quick positioning nodes, and the two tower cranes conduct symmetrical hoisting; and finally hoisting construction of the cylinder section is completed.

The invention relates to the technical field of oilfield chemistry and oil extraction, and discloses an oilfield profile control agent and a preparation method thereof. The oilfield profile control agent comprises the following components in parts by mass: 28-62 parts of polyester polyol, 4-42 parts of hexamethylene diisocyanate, 2-41 parts of chloroprene rubber, 0.01-3 parts of a catalyst, 2-45 parts of a blocking agent, 1-31 parts of a solvent and 1-20 parts of a plasticizer. A polyurethane prepolymer is prepared by the polymerization of the polyester polyol and the hexamethylene diisocyanate, and then a blocking reaction is carried out on the blocking agent with the polyurethane prepolymer, the solvent, the chloroprene rubber, the plasticizer and the catalyst, so that the oilfield profile control agent provided by the invention is obtained. The product is in a liquid state at normal temperature, can fully enter into the deep micro pores of a stratum, and gels and expands in the stratum; the gelling temperature is controllable, so that the diversion function of the profile control liquid flow of a deep oil reservoir can be realized; the flood conformance volume is increased; thewater flooding effect is improved; and the recovery efficiency is improved.

The invention belongs to the field of excavator technology and particularly discloses a working device and an excavator. A telescopic bucket rod and a telescopic moving arm in the working device greatly improve the working range of the working device. A four-connecting-rod mechanism greatly improves the rotatable angle of the bucket rod and the working range of the whole working device. A moving arm oil cylinder is placed in a platform and enables the bucket rod to be possibly restored to the lower surface of the moving arm at a large angle, thus, the restoration angle and the restoration range of the working device are improved, and the condition that an operation machine tool scrapes the moving arm oil cylinder in the restoration state of the bucket rod is avoided. The excavator has the large-range operation capacity which a small excavator does not have, has the characteristics, of being light in weight, small in size and flexible, which a large excavator does not have, and is especially suitable for large-area operation by the small excavator or superlarge-area operation occasions of the large excavator. Meanwhile, when the working device is in a completely restored state, the excavator is small in size, light in weight, low in transportation and driving height, and small in rotary radius, and can be driven and transferred easily.

The invention provides a novel dredging device. The novel dredging device comprises a hull, a conveyor belt, a receiving hopper, a dredging mechanism and a lifting mechanism, the dredging mechanism comprises a support frame, mud poking blades, mud stirring shafts, moderatingelectric motors, a bevel gear I, a bevel gear II and an electric motor I, the support frame is welded to the lifting mechanism, the two ends of the mud poking blades are respectively mounted on the support frame throughbearings, the mud poking blades is connected with the electric motor I in a driving mode through the bevelgear I and the bevel gear II, the four mudstirring shafts are respectively mounted on the mud pokingbladesin an equal angle mode through the bearings, the four moderating electric motors are respectively fixedly mounted on the mud pokingblades, and the power output ends of the moderating electric motors are fixedly connected with the mudstirring shafts respectively.Silt is excavated throughthe mutuallyindependent rotating mud pokingblades and mudstirring shafts, so that the accumulated silt can be quickly cleaned and the cleaning effect is good, and the position of the dredging mechanism is changed through the lifting mechanism, so that the mud poking blades can fully excavate the slit, and the working radius is increased.

The invention discloses a drill stand face pipe column treatment device which comprises sliding rails. The sliding rails are fixed to a drill stand face. A moving assembly is arranged on the sliding rails to slide. A mechanical arm assembly is fixedly connected to the moving assembly. A pipe column treatment clamp head is installed at the top end of the mechanical arm assembly. The mechanical armassembly is used for adjusting and transporting a pipe column and keeps the pipe column treatment clamp head horizontal. The pipe column treatment clamp head is used for clamping the pipe column. According to the purpose, the drill stand face pipe column treatment device is provided and can be used for achieving multifunctional operation.

The invention relates to a field of leaked dangerous gas treatment, especially relates to a moveable emergency system for treating leakage of acute dangerous chemical gas. The system is characterized by comprising a power system, a suction component, a conditioning fluid storage tank, a purifying box and a venturi jet circulating device used for generating vacuum suction to inhale dangerous gas. The suction component is connected to the inlet side of the venturi jet circulating device, the outlet side of the venturi jet circulating device is communicated with the conditioning fluid storage tank, and the purifying box is connected with the outlet of the conditioning fluid storage tank. The system has the characteristics of capabilities of completely absorbing the leaked dangerous gas, entering into the leakage circumstance in an unmanned operation manner, and overcoming the power failure condition in emergency scene and has the advantages of huge capacity and large treatment radius, and the exhaust gas emission meets environmental standards.

The invention discloses a grouping and air-pairing installation method for a corridor, and relates to a high-altitude installation method of a steel structure. The grouping and air-pairing installation method comprises the installation steps: carrying out detailed composition on the terrain of a site and the positions of surrounding buildings, and determining main factors restricting the lifting of the corridor; determining the type and the position of a tower crane; dividing the lower layer of the M-2 corridor into two sections for installation; carrying out corridor pairing; assembling parts of the corridor. The grouping and air-pairing installation method disclosed by the invention has the advantages that in a construction area, the operating radius of the tower crane is large, the use is flexible, the long-term use can be achieved, the steel-structure construction is carried out in the areas with narrow construction sites and disadvantage for working of large lifting equipment, and convenience is brought for grouped splicing of the large steel structure. The grouping and air-pairing installation method disclosed by the invention also has the advantages that the problem that long-term matching and construction of the lifting equipment are needed due to the limitation to the construction site can be effectively solved, the use is flexible, and the use expense of the large lifting equipment is reduced; multiple constructions can be matched for optimizing other construction projects during the use period, so that the efficiency is improved.

The invention provides an unmanned aerial vehicle remote control distance-increasing system which is mainly used for increasing effective control distance of unmanned aerial vehicles. The system relates to the field of unmanned aerial vehicles, communication and electronic technology. According to the system, by adding two control modules, namely a ground end and an airborne end, to the present remote control system, wherein the ground end is used for acquiring, calculating, data packaging and forwarding remote control signals, and the airborne end is used for analyzing data, generating and forwarding signals, present remote control system signals can be transmitted by special transceivers. By means of the system, remote control and transceivers can be changed as required so that requirement of different control distances can be satisfied.

The invention relates to a sand-dust removing device, which is suitable for environment that sand-dust attachment surfaces are irregular and have great convex and concave difference, in particular suitable for removing sand and dust on railway tracks in areas with more sand wind. The sand-dust removing device comprises an engine arranged on a travel mechanism, a dust collection system, an air booster device and a sand-dust treatment device, wherein the dust collection system comprises a vacuum pump and a suction head communicated with the vacuum pump through a dust collection pipe; and the air booster system comprises an air booster pump which is communicated with the suction head through an air booster pipe and a boosted air nozzle. The sand-dust removing device has the advantages that: the sand-dust removing device has large power for removing the sand and dust, high efficiency and wide application range so as to protect the environment and equipment, is particularly used as a sand-dust removing device on railways, reduces the wear between train wheels and tracks, and reduces the labor intensity of railway maintenance personnel.

An embodiment of the invention discloses a drag bucket forklift operating method. The drag bucket forklift operating method comprises the steps that a first operating platform is built on the stope; adrag bucket forklift is located on the first operating platform, pushes layered materials on a blasting muck pile to a waste dump in an overcast mode and pushes leading ditch materials to the waste dump in an overcast mode; the pushed layered materials on the blasting muck pile and the pushed leading ditch materials are combined to form a second operating platform on the waste dump; after the pushed layered materials on the blasting muck pile and the pushed leading ditch materials are completely pushed in an overcast mode, the drag bucket forklift constructs a connection channel for the second operating platform; the drag bucket forklift moves to the second operating platform; and the drag bucket forklift pushes the first operating platform and materials at the bottom of the first operating platform in an overcast mode. By the use of the drag bucket forklift operating method, the operation that drag bucket forklifts are arranged on the stope and the waste dump is not required any longer, the requirement for the number of the drag bucket forklifts can be reduced, the operating radius of the drag bucket forklift is increased, the operating capacity of the drag bucket forklift is improved, the purchase cost is reduced, the exploitation quantity is increased, and the exploitation rate is improved.

The invention discloses a standard knot introduction system of a movable arm tower crane. The standard knot introduction system comprises a tower body, an arm frame, a balance arm, a main hoisting mechanism, an amplitude changing mechanism and an auxiliary hoisting mechanism, wherein the arm frame comprises an arm root close to the tower body, and an arm tip far away from the tower body; the main hoisting mechanism comprises a main lifting hook which is arranged at the arm tip position of the arm frame; the amplitude changing mechanism is arranged on the balance arm; the auxiliary hoisting mechanism comprises an auxiliary lifting hook, an auxiliary winch, a fixed pulley and an auxiliary steel wire rope; the fixed pulley is arranged at the position, close to the arm root, on the arm frame; the auxiliary steel wire rope bypasses the auxiliary winch and then is wound around the fixed pulley; the auxiliary lifting hook is connected to the end part of the auxiliary steel wire rope. The invention also provides the movable arm tower crane with the standard knot introduction system and a method for introducing a standard knot through the standard knot introduction system. The auxiliary hoisting mechanism of the movable arm tower crane hoists the standard knot to the position nearby an introduction platform, the elevation of the arm frame is not over large, the hoisting speed can be quick, the introduction efficiency of the standard knot is high, and rollover caused by over-large elevation of the arm frame is avoided.

The invention belongs to power industry power transmission and transformation safety guaranteeing construction equipment and particularly relates to a suspension type movable branch cutting device. A motor (13) is mounted on the lower portion inside a trapezoid outer shield (15). The upper end extension shaft of the motor (13) is connected with a worm wheel and worm type reducer (12). A drive sprocket (11) is mounted on the extension shaft of the reducer (12). A support (10) is fixed on the upper portion outside the outer shield (15). A driven sprocket (8) is mounted on a driven sprocket shaft (7) in the support (10). The driven sprocket (8) is in transmission connection with the drive sprocket (11). Two reset springs (5) are fixedly mounted on the driven sprocket shaft (7) on the outer side of a lower roller (6). The reset springs (5) are respectively movably connected to two upper roller shafts (2). A first chain saw sprocket (20) and a second chain saw sprocket (18) are mounted on the lower end extension shaft of the motor (13). A chain saw (16) is mounted on each of the first chain saw sprocket (20) and the second chain saw sprocket (18). The suspension type movable branch cutting device automatically controls the motor to move so as to cut the branches, causing potential safety hazard, below electric wires, and safe circuit power supply can be guaranteed.

The invention relates to a bush cutter for cutting off shrubs and shaping flowers and trees in fields such as flower beds, yards, parks and road sides. According to the bush cutter comprising the improved multi-scavenging-port small-size two-stroke single-cylinder air-cooled gasoline engine, the original long rod is changed into the multi-honey-comb and catalase hush tube, the bush cutter comprises a transparent protective cover, a bush knife with an external peripheral knife edge and an internal peripheral knife edge, a long rod interface with a side flange and a side screw thread and being hard to loose, a vibration decreasing handle with a spiral spring or a wave-shaped spring, and a carburetor with an internal spiral vortex sprayer, the bush cutter is a novel bush cutter comprising the catalase hush tube, the swirl sprayer and the two-stroke multi-scavenging-port gasoline engine, and the bush cutter has the benefit effects that the discharge is low, a discharge port is far away from people, the safety performance can be realized, and the quality and the practicability are improved; and a new operation mode of the bush cutter can be further provided, so that the work semidiameter can be enlarged.

The invention relates to a four-axis mechanical hand device applicable to a high-temperature and high-dust environment and application thereof. The four-axis mechanical hand device comprises a base, arotary seat, a big arm, a small arm and a mechanical hand in sequence from bottom to top, wherein the rotary seat is arranged on the base and is driven to rotate through a first motor arranged on thebase; the bottom of the big arm is connected with the rotary seat and is driven to rotate through a second motor arranged on the rotary seat; the bottom of the small arm is connected with the top ofthe big arm and is driven to rotate through a third motor arranged on the rotary seat; the mechanical hand is connected with the top of the big arm and is driven to rotate through a fourth motor arranged on the big arm. The four-axis mechanical hand device provided by the invention is driven by adopting a chain and has good durability on a high-temperature and high-dust working environment; the four-axis mechanical hand device is convenient to repair and maintain and the reliability of the mechanical hand after long-time working is ensured. The four-axis mechanical hand device has four degreesof freedom and has the advantages of flexibility in movement, relatively long arm expansion and large operation radius; a movement posture can be adjusted according to production requirements, the production cost is easy to reduce, the defective rate is reduced and the quality of a product is improved.

The invention discloses an extra-high voltage series compensation platform equipment lifting portable repair device. The device comprises a lifting mechanism, a transfer mechanism and a control system; the lifting mechanism includes a fixed base, a support rod (2) and an upper support arm (3); the lower end of the support rod (2) is rotationally connected with a transfer piece (6); the transfer mechanism includes a slide rail, a support base, a pin front stop column, a pin back stop column and a side baffle plate; the control system includes a first motor (14), a second motor (15), a control module (16), a brake mechanism (17), a video acquiring module (18) and a display module (19); and the video acquiring module (18) is fixed on a hanging hook (21). The device is provided with the lifting mechanism with detachable and foldable structure for improving the portability and the operation efficiency, and meanwhile, is provided with the video acquiring module on the hanging hook for monitoring conditions of parts in real time.

The invention discloses an automatic tracking antenna gain system for a long distance directional image transmission. The automatic tracking antenna gain system comprises an unmanned plane standard remote controller, an external adjustable bidirectional power amplifier and an automatic tracking gain antenna. The signal input terminal of the adjustable bidirectional power amplifier is in signal connection with the antenna connection terminal of the unmanned plane standard remote controller; the signal output terminal of the adjustable bidirectional power amplifier is in signal connection with the automatic tracking gain antenna; and the automatic tracking gain antenna can automatically extend and retract along with the face of the unmanned plane which has strongest signals. The automatic tracking antenna gain system can effectively expand operating radiuses of the unmanned plane, and enhances the unmanned plane image transmission effect and stability; and the control distance of the unmanned plane and a image transmission distance are more than 2km and the automatic tracking antenna gain system enables the unmanned plane control and the image transmission distance to be not limited by a nominal range.

The present invention relates to a high altitude branch pruning device comprising blade, motor, motor cover, bracket and shaft, the blade is installed on the motor axes, the motor is parked into the motor cover, the motor cover hinges with the bracket, and the bracket connects with the shaft. The beneficial effects of the present invention is: to resolve air and environment pollution caused by phoenix tree flying, so as to offer more clearer air and habitation environment to townsman and avoid various diseases caused by phoenix tree, and to improve health level for citizen. This invention device is light and long (about 15 meter), its operating radius is large, so people can work easily under the tree, the operation is safe and convenient, and work efficiency is increased greatly.

The invention discloses an automatic robot refueling device and method. The automatic robot refueling device comprises a mounting cabinet body, and the mounting cabinet body internally comprises a movable base, a mechanical arm and a refueling mechanism; the refueling mechanism comprises an oil tank cover opening and closing assembly and a refueling assembly which are close to each other and can work independently. The oil tank cover opening and closing assembly comprises a clamping jaw rotating device arranged at the end of the mechanical arm, a buffering piece connected with the clamping jaw rotating device and a clamping jaw driving device connected with the buffering piece. The clamping jaw driving device is provided with clamping jaws capable of relatively clamping or loosening, and the clamping jaws are used for opening and closing the oil tank inner cover; the oil filling assembly comprises an oil filling support, an oil filling gun arranged on the oil filling support and a shifting rod driving device arranged on the oil filling gun and connected with an oil filling gun shifting rod. The technical problems that an existing robot refueling device is complex in structure, can only achieve single-side refueling and is small in operation radius, consequently, the requirement for controlling the parking precision range of a refueling automobile is high, and the refueling efficiency is low due to the fact that the matching precision of a refueling gun and a fuel tank opening is not high in the refueling process are solved.

The invention discloses a retractable windscreen wiper and an operating method thereof. One end of a main support plate is fixedly provided with a power device, the output shaft of the power device isprovided with a first connecting plate, and one end of the first connecting plate is hinged to a first connecting rod through a first hinge pin; a second connecting rod is hinged to the first connecting rod through a second hinge pin, one end of the first connecting rod is hinged to a first lug of a rotating plate; the tail end of the first connecting rod is hinged to a third connecting rod, andone end of the third connecting rod is hinged to a second lug of the rotating plate; the center of the rotating plate is fixedly provided with a rotating shaft, the top of the rotating shaft is fixedly connected with a rotary top plate which is matched with a retraction power mechanism, the retraction power mechanism is used for connecting with a crank-connecting rod mechanism which is used for extending and retracting, and the tail end of the crank-connecting rod mechanism is provided with a windscreen wiper rack. The retractable windscreen wiper can move circularly and meanwhile retractablyalong a guide sleeve to further change the working radius.

The invention relates to the technical field of engineering machines, and particularly discloses a telescopic arm structure, a working arm and an engineering machine. The telescopic arm structure comprises a first section arm, a second section arm, a compensation mechanism and an oil circuit, the first section arm is slidably arranged on the second section arm in a sleeving mode, and the first section arm can extend or retract relative to the second section arm so that the working radius of a lifting appliance can be adjusted, the lifting appliance has a large working range and is high in applicability, the two ends of the compensation mechanism are fixed to the first section arm and the second section arm correspondingly, and the compensation mechanism can extend in a bent mode and expand; and the oil circuit is formed in the compensation mechanism in a penetrating mode and used for being connected with the lifting appliance to supply oil to the lifting appliance. When the second section arm extends out relative to the first section arm, the compensation mechanism extending in the bent mode expands; and when the second section arm retracts relative to the first section arm, the expanding compensation mechanism extends in the bent mode, and compared with related technologies, falling of the oil circuit can be avoided.

The invention discloses a mine danger removing robot which comprises a vehicle body, a crawler-type walking device and a danger removing device, and the danger removing device comprises a rear hydraulic cylinder, a hydraulic impact breaker, a folding arm, a spring and a danger removing rod; the folding arm comprises a rear folding rod, a front folding rod and a front hydraulic cylinder, and the lower end of the rear folding rod is hinged to the vehicle body; the upper end of the front folding rod is hinged with the rear end of the front folding rod; the lower end of the rear hydraulic cylinderis hinged to the rear end of the vehicle body, and the upper end is hinged to the rear folding arm; the hydraulic impact crusher is fixed at the rear part of the front folding rod; a danger removingrod is fixedly installed on the front portion of the front folding rod, and the upper end of the front hydraulic cylinder is hinged to the front folding rod. The lower end of the front hydraulic cylinder is hinged to the vehicle body; a power device and a wireless communication control device are arranged in the vehicle body, and the wireless communication control device is used for controlling the front hydraulic cylinder, the rear hydraulic cylinder, the walking device and the hydraulic impact crusher to work. The mine danger removing robot is remotely controlled, the labor intensity of workers is reduced, and potential safety hazards of the workers are eliminated.

The invention discloses a bridge detection mobile platform which comprises a walking mechanism and a truss assembly; the walking mechanism is a walking vehicle; and the truss assembly comprises a slewing bearing arm, a vertical arm and a working platform, wherein the slewing bearing arm is horizontally arranged and is connected above the walking vehicle through a first slewing mechanism; the vertical arm is connected with the slewing bearing arm through a turnover mechanism, the turnover mechanism is provided with a guide limiting device used for being connected with the vertical arm, and the vertical arm is further provided with a lifting mechanism used for controlling the vertical arm to ascend or descend; and the working platform is connected with the lower end of the vertical arm through a second swing mechanism, and the working platform is hinged to the second swing mechanism. The truss type structure is adopted, and a three-dimensional space operation system can be formed through the slewing bearing arm, the vertical arm and the working platform in cooperation with the turnover mechanism, the lifting mechanism and the slewing mechanism, so that the working range under a bridge is greatly enlarged; the advantages of being easy and convenient to operate, flexible in action and the like are achieved, shaking is small during unfolding operation, safety is high, and meanwhile, transition transportation is convenient.

The invention discloses a multi-airport preferential take-off and landing method for a vertical take-off and landing fixed-wing unmanned aerial vehicle, which comprises a fixed-wing unmanned aerial vehicle and multiple airports for taking off and landing of the fixed-wing unmanned aerial vehicle, and a sensor and an RTK space positioning module are mounted on the fixed-wing unmanned aerial vehicle. The current space coordinates of the fixed-wing unmanned aerial vehicle and the space coordinates, the speed, the course angle and the altitude of a nearby free airport in the flight process of the fixed-wing unmanned aerial vehicle are obtained in real time, the deceleration cost, the height reduction cost, the distance cost and the angle cost are calculated, and the total airport cost is the sum of the deceleration cost, the height reduction cost, the distance cost and the angle cost; and the total cost of each airport is calculated, the airport with the minimum total cost is the optimal landing airport. The effective operation time of the unmanned aerial vehicle can be effectively prolonged, the operation radius is increased, the optimal airport landing is selected through calculation according to the flight state of the unmanned aerial vehicle, the dependence of the fixed-wing unmanned aerial vehicle on the airport is reduced, the burden of operators is greatly relieved, and the working efficiency of the fixed-wing unmanned aerial vehicle is improved.

The invention provides automatic intelligent detection equipment. The equipment comprises a supporting rod, a plurality of adjusting bases and a plurality of fixing bases are arranged on the supporting rod, the adjusting bases and the fixing bases are each provided with a plurality of clamping mechanisms through a first rotating shaft, detection mechanisms are fixedly installed at the top ends ofthe clamping mechanisms, and the detection mechanisms are used for thickness measurement of metal parts and flaw detection of the interiors of the metal parts. According to the invention, simulated overall analysis can be carried out on the form of a whole metal plate through a plurality of groups of collected samples, and therefore, more accurate quality data can be obtained; and the detection mechanisms which operate separately and independently do not influence one another, and a multi-degree-of-freedom mechanical arm can well increase the operation radius, so that the multi-degree-of-freedom mechanical arm adapts to the angle of the metal plate and automatically changes, the rotating operation burden of conveying equipment is prevented from being increased, the equipment cost is reduced, the quality and quantity of metal plate quality detection are improved, the automation level is improved, the production rhythm is accelerated, and the production efficiency is improved.