34 results about "Rapid transit" patented technology

This invention provides a prefabricated canal construction process, comprising the following steps: S1: excavating a waterway; S2: constructing a transportation system above the waterway along its extension direction; S3: manufacturing prefabricated components; S4: using the transportation system to move the prefabricated components to a predetermined position on the waterway; S5: repeating S3 to S4 until all the prefabricated components are transported; S6: assembling adjacent prefabricated components to form a prefabricated canal. The prefabricated canal construction process provided by this invention offers a hoisting method, constructing a transportation system above the waterway, using the transportation system to move the prefabricated components to a predetermined position, and then sequentially assembling multiple prefabricated components to form a canal. This avoids on-site construction of prefabricated components, only requiring transportation of prefabricated components, reducing the number of material handling operations and saving construction time. The multiple prefabricated components assembled into a canal in this application are easy to move individually, and can be quickly transported to a designated location with the help of the transportation system, accelerating the construction efficiency of the canal.

The invention discloses a double-source coupling type mobile solid heat storage device and method suitable for rural areas, and belongs to the technical field of heat energy storage and comprehensive energy utilization. The device comprises a heat preservation unit, a supporting unit, a heat storage unit and a heat charging and discharging system, modular design is adopted, a standardized container serves as a carrier, and rapid transportation and deployment are supported. The heat storage unit adopts a composite material with high density and high heat storage performance as a main body, a heat exchange finned tube and a resistance wire are arranged in the heat storage unit, heat is directly exchanged through a working medium and a heat storage body, and efficient heat charging and discharging integration is achieved. The three modes of electric heating heat energy input, direct heat energy input and double-source input are compatible during heat charging, the comprehensive energy efficiency is improved by optimizing energy utilization, and the risk that a working medium is overheated or vaporized is avoided through precise temperature control during heat release. The system is suitable for the scenes of waste heat utilization of a combined heat and power unit, industrial waste heat recovery, solar heat collection / terrestrial heat utilization, distributed renewable energy consumption and distributed clean heat supply.

The utility model discloses a heavy-load unmanned aerial vehicle transportation device which comprises an integrated protection base, a tray metal plate assembly and a pressing buckle locking assembly. The integrated protection base and the pressing buckle locking assembly are installed on the tray metal plate assembly. When the unmanned aerial vehicle needs to be disassembled, the unmanned aerial vehicle device on the tray can be quickly taken out only by pushing the motor of the unmanned aerial vehicle out of the integrated protection seat and reversely pushing away handles of the pressing buckle locking assemblies at the four corners, and the convenience is greatly improved; according to the pressing buckle locking assembly, the stress reverse self-locking design of the lever principle is utilized, operation inconvenience caused by a nut dismounting and mounting mode in the dismounting and mounting process is avoided, meanwhile, it is guaranteed that the pressing buckle locking assembly cannot be automatically bounced off in the transportation process, and during dismounting, the locking assembly can be opened only by manually and reversely pushing the handle; rapid transportation, loading and unloading of the large-load unmanned aerial vehicle are well achieved, and meanwhile safety and reliability in the transportation process are guaranteed.

The utility model relates to the technical field of building board transportation, and discloses a large-size window-wall integrated board transportation goods shelf which comprises a plurality of bottom transverse pipes and bottom longitudinal pipes connected among the bottom transverse pipes. First square tube vertical tubes are arranged at one ends of the multiple bottom transverse tubes, second square tube vertical tubes are arranged at the other ends of the multiple bottom transverse tubes, diagonal draw bars are arranged between the first square tube vertical tubes and the second square tube vertical tubes which are opposite, first transverse connecting rods are arranged between the tops of the adjacent first square tube vertical tubes, and second transverse connecting rods are arranged between the tops of the adjacent second square tube vertical tubes. A second transverse connecting rod is arranged between every two adjacent second square tube vertical pipes, a plurality of mounting bases are arranged in the length direction of the second transverse connecting rods, and limiting steel plates are welded to the tops of the adjacent mounting bases. The device can be fixed on an open type carrying truck, and rapid transportation of the large-size window-wall integrated plate is achieved.

The utility model provides a liftable quick transport trolley, which is used in the replacement and transportation process of a loading and unloading mechanism for testing and sorting tubular loading and unloading equipment, and comprises a main frame assembly and a mechanism floating platform arranged on a synchronous lifter base plate of the main frame assembly, a mechanism floating platform is fixed on a synchronous lifter base plate in a main frame assembly, the synchronous lifter base plate is fixed on a synchronous lifter, the synchronous lifter is fixed on a trolley frame, a hand wheel is connected with the synchronous lifter, the hand wheel is fixed on the trolley frame, and the trolley frame is fixed on the mechanism floating platform. The feeding and discharging mechanism is locked at a mechanism mounting hole in a mechanism mounting base plate in the mechanism floating platform through a bolt. According to the liftable rapid transportation trolley, rapid transportation of a feeding and discharging mechanism can be achieved, the height of the trolley can be adjusted, compatibility is higher, the structure is simple, production cost is reduced, and maintenance is convenient.

The present invention relates to a quality inspection system for chromium coating layer of enhanced accident tolerant fuel for nuclear power plants, the quality inspection system allowing rapid transport and inspection of objects to be inspected, and classifying and automatically and separately loading the inspected objects according to the results of the inspection. The quality inspection system according to the present invention comprises an apparatus for feeding objects to be inspected, a rotary transport apparatus, a sorting and loading apparatus, and a control apparatus, wherein the rotary transport apparatus comprises a base unit, first and second rotary transport units, a power generation unit, a power transmission shaft, and a support unit for objects being inspected.

The invention relates to the technical field of unmanned driving scheduling, in particular to a passenger response type PRT system scheduling method considering electric quantity. According to the method, the empty vehicle scheduling plan is formulated based on the passenger vehicle using requirements and the vehicle states of the passengers in each time period with the aim of avoiding transport capacity waste and empty vehicle idling, and the scheduling scheme with the highest utilization rate among the stations of the system is realized, so that the operation efficiency and the passenger carrying capacity of the rapid traffic system are improved.

The invention relates to the technical field of ferrous metallurgy, and discloses a control method for improving winter aging of high-carbon steel and reducing brittle failure. Comprising the first step of wire rod pretreatment and rapid transportation, the second step of heat preservation stack position preparation, the third step of heat preservation cover installation and debugging, the fourth step of wire rod warehousing and heat preservation slow cooling, the fifth step of alternate operation and finished product warehouse-out and the sixth step of equipment daily maintenance. Through the whole-process temperature control of offline temperature monitoring (380-420 DEG C)-rapid transfer (12-18 minutes)-before-warehousing temperature verification (greater than or equal to 290 DEG C + heat compensation), the heat loss of the wire rod from rolling to warehousing is effectively reduced, gas and stress release stagnation caused by too low temperature is avoided, and compared with a traditional transfer mode without temperature control, the temperature control method has the advantages that the temperature control efficiency is improved, and the production cost is reduced. By means of the steps, the warehousing temperature reaching rate can be increased to 95% or above, it is ensured that a sufficient heat foundation is achieved in the subsequent heat preservation and slow cooling stage, and the time needed for stress release is directly shortened.

The application discloses a large mechanical fast conveying device, which comprises a carrier platform and a connecting frame, two groups of mounting tables are welded at the rear end edges of the carrier platform, towing arms are hinged at the mounting tables, the front ends of the towing arms fall on the carrier platform, the bottom of the mounting table is hinged with the connecting frame, the front end of the connecting frame is hinged with a hinged seat, rear wheels are arranged at the ends of the hinged seat, the two groups of rear wheels are fixedly connected with connecting arms. The large mechanical fast conveying device is provided with the mounting tables, the lifting hydraulic rods, the rear wheels, the center seat and the steering hydraulic rods, so that the mounting tables can be lifted by the hydraulic control system before transportation, the fast lifting of the carrier platform and the steering of the rear wheels are realized, the tripod is convenient to be integrally towed after being hooked at the tail of the transport vehicle, the large mechanical fast conveying device is suitable for the transportation of large machines, and the problems of low efficiency caused by manual pushing and pulling or the limiting device for steering control and adjustment are solved.

The intelligent transportation and installation equipment for the building air ducts comprises a conveying frame, a conveying plate is arranged on the front side of the conveying frame, positioning assemblies are fixedly connected to the middles of the left side and the right side of the conveying plate, the conveying frame comprises an inclined frame, and a top frame is fixedly connected to the top of the rear side of the inclined frame; the middle of the outer side of the inclined frame is fixedly connected with a winch connecting frame, the winch connecting frame is fixedly connected with a winch on the rear side of the bottom of the inclined frame, the outer wall of the winch is sleeved with a cable, the rear side of the inner side of the inclined frame is movably connected with a spool, and the end, away from the winch, of the cable is sleeved on the outer wall of the spool. By arranging the conveying frame and the conveying plate, rapid conveying of the air pipes is achieved, the problem that the air pipes are inconvenient to disassemble is solved through ingenious design, humanization and intellectualization of the equipment are embodied, in addition, the overall structural design of the equipment is reasonable, all parts are tightly matched, and the stability and reliability of the equipment in the running process are guaranteed.

The invention discloses a non-fixed-track-gauge PRT track system, and belongs to the technical field of double-track track traffic, the non-fixed-track-gauge PRT track system comprises a fixed turnout track and a track vehicle, the fixed turnout track comprises a main track and a bifurcated track, the track gauges of the main track and the bifurcated track are non-fixed, and different track radiuses correspond to different track gauges. The railway vehicle comprises a vehicle body and a bogie, the bogie comprises a wheel set assembly and a steering mechanism, and the steering mechanism comprises a steering tie rod, a left steering knuckle, a right steering knuckle, a left steering trapezoidal arm, a right steering trapezoidal arm, a steering gear, a rack and an anti-derailment steering guide part. The non-fixed-gauge PRT rail provided by the invention is specially suitable for the rail vehicle provided by the invention, and each pair of wheel pair assemblies of the bogie of the rail vehicle can independently steer left and right, so that the available space of the rail vehicle can be effectively increased, the transportation and cutting amount can be increased, and the popularization of a novel rail traffic personal rapid transportation system is facilitated.

The invention belongs to the field of collapse rescue, and particularly provides a motorized rescue drilling machine and a modular rack. The drilling machine comprises a machine frame, the machine frame is sequentially provided with a front machine frame section, a middle machine frame section and a rear machine frame section from front to back, the front end of the middle machine frame section is connected with the front machine frame section through a detachable connecting structure, the rear end of the middle machine frame section is connected with the rear machine frame section through a detachable connecting structure, and the front machine frame section and the middle machine frame section are provided with translation guide structures which can be connected front and back in the connecting state of the front machine frame section and the middle machine frame section. The front rack section is provided with a pipe clamping device, the middle rack section is connected with a crawler walking mechanism, and the rear rack section is provided with auxiliary equipment of the drilling machine. The rack is the rack of the drilling machine. During rescue use, according to on-site transportation conditions, all parts of the rack can be transported into a site respectively, and after the parts enter the site in place, the three-section type rack is connected and assembled to form a complete rescue drilling machine on site, so that the effects of rapid transportation and assembly are achieved, and the rescue time is saved.

The wing-shaped solar panel lamp trolley comprises a lamp trolley body, solar panels are rotationally connected to the lamp trolley body in a bilateral symmetry mode, a lamp holder is rotationally connected to the front side of the lamp trolley body, and a driving mechanism used for driving the solar panels to rotate is installed on the lamp trolley body. Connecting rods perpendicular to the solar panels are symmetrically installed on the front sides and the rear sides of the solar panels, rotating bases are installed on the portions, corresponding to the ends of the connecting rods, of the lamp trolley body, the ends of the connecting rods are rotationally connected to the rotating bases, and one of the two corresponding connecting rods on the two solar panels is connected through a chain and chain wheel structure. The solar lamp car is reasonable in design, the space on the two sides of the lamp car is utilized, storage of the solar panel is achieved, the space for putting down the lamp pole assembly can be reserved on the upper portion of the lamp car, the problem that during transportation, tedious disassembly is needed due to height limitation is solved, and specialized rapid transportation is facilitated.

According to the logistics distribution optimization method based on the real-time road condition and the multi-factor decision, the efficiency and accuracy of distribution are improved through intelligent scheduling of the central management system and navigation of the distribution robot. The integrated vertical and horizontal transmission system ensures rapid transportation of goods among multiple floors, and the flexibility and reliability of logistics nodes are enhanced by the application of the intelligent transceiving workstation and the real-time information updating function of the central system. The technical problems of low delivery efficiency, wrong delivery or delayed delivery caused by non-uniform resource allocation, poor road congestion response, insufficient intelligent path planning and unsmooth real-time information transmission in the prior art are solved.

The utility model relates to the technical field of carton forming machine equipment, and discloses a carton forming machine paperboard rapid conveying device which comprises a supporting frame, a first station, a second station, a third station and a material conveying mechanism are arranged above the supporting frame, and the material conveying mechanism is provided with two parallel guide rails. A first material taking device and a second material taking device are arranged between the two guide rails, the guide rails are provided with motors, and the guide rails are provided with two sensors; the first material taking device and the second material taking device are each provided with a material taking frame, and each material taking frame is provided with a position-adjustable sucker device. The paper board conveying device has the advantages that the sensor is used for resetting the motor, the first material taking device and the second material taking device can quickly convey paper boards in a short distance among the three stations, the material conveying speed is high, and the precision is high; and 2, the position of the sucker device can be manually and automatically adjusted, so that the shapes of the first material taking device and the second material taking device are changed, and the applicability is high.

The utility model relates to a pipe conveying device for underground engineering, which belongs to the field of pipe conveying. The pipe conveying device for underground engineering comprises two bottom plates connected with moving wheels, two portal frames connected with the end of the two bottom plates respectively, two connecting plates connected with one end of the two portal frames respectively, two lifting plates connected with the portal frame in a liftable manner, two side fixing assemblies, two end fixing assemblies and a lifting assembly for driving the lifting plate to lift, and the connecting plate is arranged above the bottom plate. The side fixing assembly comprises an arc-shaped clamping plate connected with the connecting plate in an extendable and retractable manner, and the two arc-shaped clamping plates are pressed against or loosened from the two sides of the pipe when they are extended or retracted. The end fixing assembly comprises a positioning disc connected with the lifting plate in an extendable and retractable manner, the positioning disc is connected with a plurality of extrusion blocks movable along the radial direction of the positioning disc, and the two positioning discs are inserted into or out of the two ends of the pipe and make the corresponding extrusion blocks move along the radial direction when they are extended or retracted, so as to press against or loosen the inner wall of the pipe. The pipe conveying device for underground engineering can be used for the rapid transportation and loading and unloading of the pipe in a narrow space.

The invention relates to the technical field of intelligent traffic control, and particularly discloses an urban intersection rail express system control method and system under heterogeneous traffic flow, and the method comprises the steps: constructing an urban intersection conflict region scene model, and guaranteeing the priority passage of an intelligent rail express system based on a green light extension strategy; modeling a cooperative control problem of the intelligent rail express system and the intelligent network vehicle into a cooperative game model; distributing weights for the earnings based on an analytic hierarchy process, and generating a comprehensive earning function based on the weights; a control strategy is generated based on a comprehensive revenue function, so that the influence of ART on CAV can be considered on the premise of ensuring priority passage of ART, the potential traffic safety hazard of an intersection conflict area can be eliminated, and the safety revenue of each game participant can be ensured; under the condition that the overall passing efficiency of the intersection is not sacrificed, the passing efficiency of the game core participant ART is improved, and the time that the ART stays in the intersection is shortened.

The utility model discloses a hoisting operation mechanism for pavement ancillary facility materials, which comprises a mounting underframe, supporting vertical beams are mounted at four corners of the top surface of the mounting underframe through bolts, connecting angle blocks are mounted at the top ends of the supporting vertical beams through bolts, and a mounting top beam is fixedly connected to the tops of the four connecting angle blocks through bolts. According to the auxiliary facility material lifting device, auxiliary facility materials are driven by the winch to ascend and descend in the vertical direction, the winch is driven by the electric transverse moving base to move horizontally along the bottom of the driving cross beam, and the auxiliary facility materials are driven by the winch to move horizontally along the bottom of the driving cross beam. And the auxiliary facility materials are put down after moving to a proper position, so that rapid transportation of the auxiliary facility materials is achieved, the hoisting operation mechanism can be rapidly moved to a construction position in the using process of the auxiliary facilities, and then the using convenience of the hoisting operation mechanism is effectively improved.

The utility model discloses a kind of negative pressure sample transfer cases, including box and lid, buckle is installed between box and lid, the bottom surface of box is equipped with supporting leg, the inside of box is equipped with barrier plate, negative pressure pump and the negative pressure assembly connected with negative pressure pump are installed in the lower side of barrier plate, storage room is equipped in the upper side of barrier plate, negative pressure assembly top is located on the surface of barrier plate, solenoid valve is installed in the bottom end of the bottom of negative pressure assembly, suction cup is located in the bottom surface of box. The utility model is equipped with the base independent of transfer case, only external fixed installation base to fast transport object can be, when using, user can be independently used by handle lifting up transport, only transfer case is embedded on base and operating control button when fast transport can constitute the fixing of whole transfer case, without repeatedly packing and unpacking fixed structure, without additionally adding remaining equipment, the effect of fast taking or placing transfer case is realized.

The utility model relates to the technical field of weighing transportation equipment, and discloses a movable weighing device, which comprises a top plate and a supporting plate, a plurality of pressure sensors are arranged between the top plate and the supporting plate, and each pressure sensor is electrically connected with a microprocessor. The weight of the concrete pole can be monitored in real time and whether the concrete pole meets the production standard is judged. And secondly, the roller group and the driving mechanism on the lower surface of the bottom plate can realize the flexible movement of the concrete pole transporting device, so that the rapid transportation of the concrete pole can be realized. According to the utility model, the weighing function and the transportation function are combined, so that the repeated hoisting step is avoided, the production efficiency is improved, and the production cost is reduced. In addition, the supporting vertical rods and the blocking mechanisms on the two sides of the bottom plate can prevent the concrete electric pole from rolling down in the weighing and transporting process, and therefore it is guaranteed that the whole process is smoothly carried out.

This invention relates to a tilt-fission wing aircraft, comprising a fuselage, a pair of wings located on either side of the fuselage, and a tail fin located at the rear of the fuselage. Each wing includes a separable front wing and a rear wing, both of which are equipped with rotors. The fuselage also includes a wing surface conversion mechanism for driving the front and rear wings to switch between two states: a level flight state with the wings folded and a vertical take-off state with the wings deployed. The purpose of this invention is to provide a tilt-fission wing aircraft that solves the technical problems of difficulty in balancing hovering and cruise efficiency, complex drive mechanisms, and insufficient reliability in existing technologies. The tilt-fission wing aircraft, with its simple and reliable wing surface conversion mechanism and excellent overall flight performance, has broad application prospects in urban air traffic, rapid inter-regional transportation, and special environment operations.

The utility model discloses a novel reinforced concrete electric pole which comprises a steel base, a plurality of sections of assembling pole bodies are arranged on the upper side of the steel base in a mutual assembling mode, a sealing cover plate is further installed at the top end of the assembling pole body on the uppermost side, and each assembling pole body comprises a reinforcing pole frame, a steel cylinder lining and a reinforced concrete shell. The reinforced concrete shell is installed on the outer side of the steel cylinder lining. The reinforced concrete pole has the beneficial effects that the cylinder body of the reinforced concrete pole is formed by splicing the assembled pole bodies consisting of the reinforcing pole frames, the steel cylinder linings and the reinforced concrete shells; the reinforced concrete pole can be rapidly transported to installation positions on different terrains in a segmented transportation mode during use, the reinforced concrete pole can be rapidly installed on different terrains conveniently, the problem that transportation is inconvenient due to an integrated structure is solved, and the use flexibility of the reinforced concrete pole is better.

The utility model discloses a kind of medium-voltage cable of continuous flexible sheath, including electric core, the outside of electric core is sleeved with inner insulating layer, the outside of inner insulating layer is sleeved with insulating air bag, the inner side of insulating air bag is equipped with heat dissipation chamber, one side end surface of insulating air bag is connected with connecting pipe, the middle part of insulating air bag is formed with clamping chamber, the outside of insulating air bag is sleeved with heat dissipation copper foil, and bending chamber is formed between insulating air bag and heat dissipation copper foil, the utility model discloses in use process, a large amount of heat will be emitted, these heat can be directly transferred to heat dissipation copper foil and heat treated from heat dissipation chamber, and after heat treatment, it can be quickly removed, and it is not necessary to be like traditional cable to transmit promotion cable heat dissipation effect layer by layer, so that the overall weight of cable can be reduced by insulating air bag, convenient and fast transport can also improve the installation efficiency of operator, so as to improve the convenience of cable use.

The utility model relates to the technical field of air conditioner installation, and provides a labor-saving support for air conditioner installation, which comprises a tray frame, the top of the tray frame is provided with a retention assembly, the retention assembly comprises two protective frames symmetrically arranged at the tops of the left and right sides of the tray frame, the top of the rear side of the tray frame is provided with a rear leaning and blocking frame, and the rear leaning and blocking frame is provided with a fixing component. Adjusting assemblies are arranged on the two protection frames. The structure of the tray rack can be conveniently adjusted, the tray rack is suitable for air conditioner bodies with different sizes, and a forklift is introduced for carrying, so that the assembly efficiency can be remarkably improved, the heavy work of manual carrying is reduced, accurate positioning and rapid transportation of the air conditioner bodies are ensured, and the installation process is simplified; according to the utility model, the labor intensity in the assembly process is reduced, the operation difficulty of personnel is reduced, and meanwhile, the assembly risk possibly caused by improper carrying is effectively reduced, so that the safety and the reliability of the whole production process are improved.

The application discloses a quick transfer electrolyte vehicle, which is provided with a lifting mechanism on a walking chassis, the lifting mechanism is connected with one end of a turnover rod, the other end of the turnover rod is slidably provided with a reversible ladle mechanism, one end of the walking chassis is provided with a transfer cylinder support located below the turnover rod, the transfer cylinder support is rotatably provided with a transfer cylinder and a turnover mechanism, and the transfer cylinder is turned over through the turnover mechanism. The application realizes the full-process mechanized operation of the whole process of electrolyte ladling, transferring the materials in the transfer cylinder and automatic pouring, replaces the heavy physical labor of manual pushing and pouring, combines the automatic ladling with the transfer cylinder, avoids frequent switching of tools, realizes the full-process automatic operation, greatly reduces the labor intensity of the operators, reduces the electrolyte ladling operation time, improves the transfer efficiency, and has remarkable social and economic benefits.

The utility model relates to the technical field of transportation hoppers, in particular to a hopper for fast transportation of gravel materials, which comprises a frame and a hopper body, the hopper body is connected inside the frame, a discharge pipe is connected to the bottom of the hopper body, lifting mechanisms are arranged on two sides of the hopper body, locking mechanisms are arranged on the two lifting mechanisms, and the locking mechanisms are connected with the hopper body. The bottom of the discharging pipe can be shielded under the action of the two lifting mechanisms, the locking mechanism, the spraying mechanism and the shielding cover, the spraying mechanism is arranged on the front face of the hopper, and the bottom of the discharging pipe can be conveniently sprayed on the discharging pipe through the shielding cover under the action of the two lifting mechanisms, the locking mechanism, the spraying mechanism and the shielding cover. And meanwhile, water can be sprayed out to make contact with the dust, dust falling treatment is carried out on the dust, the dust in the shielding cover is reduced, the situation that the body health of workers is harmed due to dust diffusion is avoided, the working environment is protected, and the body health of the workers is protected.

The utility model discloses a length-adjustable electric curtain track in the technical field of electric curtain tracks, which comprises a main track, two groups of movable tracks are movably inserted into the inner side of the main track, connecting blocks are fixedly arranged on the outer sides of the movable tracks, fixed blocks are fixedly arranged on the outer sides of the connecting blocks, movable blocks are movably inserted into the inner sides of the fixed blocks, and the movable blocks are fixedly arranged on the outer sides of the movable tracks. A positioning plate is fixedly arranged on the outer side of the main rail, a plurality of clamping grooves in butt joint with the clamping teeth are formed in the outer side of the positioning plate, a spring is arranged on the inner side of the fixed block, one end of the spring is connected to the fixed block, and the other end of the spring is connected to the movable block. Through the simple installation structure, the length of the electric curtain track can be conveniently adjusted, so that the requirements of different installation environments and rapid transportation are met, batch production of the track is facilitated, the production efficiency is improved, the practical effect is good, and the electric curtain track is worthy of being popularized and used in the existing market.

The invention provides a low-position walking and folding tunnel passing method based on a beam changing machine. The low-position walking and folding tunnel passing method mainly comprises the following steps that (1) the beam changing machine walks to the position in front of a tunnel portal in a low-position mode and stops; (2) auxiliary supporting legs are used for supporting; (3) folding the main supporting legs; (4) cancelling the support of the auxiliary supporting legs; (5) the beam changing machine passes through the tunnel in the state that the main supporting legs are folded; (6) the beam changing machine is switched to the high-position state to conduct beam changing operation; and (7) after beam changing is completed, the beam changing machine is switched to the low-position state to leave. According to the low-position walking and folding tunnel passing method of the beam changing machine, a low-position self-walking and folding tunnel passing mode is adopted, rapid transportation and rapid construction on an existing line can be achieved, and the low-position walking and folding tunnel passing method has the advantages of being simple in structure, convenient to operate, short in beam changing construction period and the like.

A public transportation system comprises a plurality of individual, single occupancy autonomous vehicles in the form of pods 1. The pods travel along an infrastructure network including elevated and e

The invention provides a fast-assembly shortcut type superimposed impact test matching device for a test and a use method, the fast-assembly shortcut type superimposed impact test matching device comprises a container, a blocking capacitor module, a resistance-capacitance voltage divider module and a protective resistor, and the blocking capacitor module, the resistance-capacitance voltage divider module and the protective resistor are all placed in the container; when the performance of the cable is detected, the bottom end of the resistance-capacitance voltage divider module is fixed on the container, and the top end of the resistance-capacitance voltage divider module is connected with the bottom end of the blocking capacitor module; one end of the protective resistor is connected with the top end of the resistance-capacitance voltage divider module, and the other end is connected with the direct-current high-voltage generator; and the top end of the blocking capacitor module is connected with the impulse voltage generator. The blocking capacitor module, the resistance-capacitance voltage divider module and the protective resistor can be placed in the same container, so that transportation and outdoor storage are facilitated. When the equipment is used, the container is opened, and the blocking capacitor module and the resistance-capacitance voltage divider module are stacked in the container, so that quick assembly and disassembly are realized, and the equipment is convenient to use.