66results about How to "Improve lateral stability" patented technology

The present invention discloses an intelligent electric suitcase, the length+width+height of which is ≤1250mm, and the intelligent electric suitcase comprises a box body for users to ride on, two power wheels installed on the box body, and a control system for respectively controlling the rotation of the two power wheels; the two power wheels are arranged on the box body in parallel on the left and right, and the wheelbase of the two power wheels is 175-245mm. The present invention is suitable for boarding an intelligent electric suitcase equipped with two power wheels, and the boarder can ride on the intelligent electric suitcase. The gravity of the boarder is evenly distributed on the two power wheels, so that any power wheel can avoid slipping with the ground, which is conducive to the steering of the intelligent electric suitcase; the sum of the three sides of the intelligent electric suitcase does not exceed 125cm, and the boarder can carry the intelligent electric suitcase to the passenger cabin of the aircraft.

The invention discloses a mountainous region photovoltaic array remote monitoring and fault early warning installation system which comprises a monitoring unit used for collecting operation data of a mountainous region photovoltaic array in real time, and a fault early warning unit used for judging whether the mountainous region photovoltaic array breaks down or not according to the data collected by the monitoring unit and sending out an early warning signal when the fault occurs. The remote monitoring center is used for receiving data transmitted by the monitoring unit and monitoring and managing the running state of the mountain photovoltaic array in real time, the installation support is used for installing the mountain photovoltaic array, the monitoring unit collects photovoltaic assembly and environment data in real time through various sensors, the data processing module carries out preprocessing and analysis, and the data processing module carries out real-time monitoring and management on the running state of the mountain photovoltaic array. And the data transmission module transmits data to a remote monitoring center in time, so that omnibearing and real-time monitoring of the running state of the mountain photovoltaic array is realized, the running condition of the mountain photovoltaic array can be mastered in time, and potential problems can be found.

The invention provides a conformal structure suitable for a large-wingspan flexible wing and a design method, and relates to the technical field of aircraft mechanical structure design. The unmanned aerial vehicle is provided with a fuselage and inflatable wings; fuselage fixing pieces are installed on the surface of the fuselage, at least one pulling point is arranged on the surface of each inflatable wing in the wingspan direction of the surface of the inflatable wing, at least one pulling point is located at the wingtip of the inflatable wing, wing fixing pieces are installed at the pulling points, and the wing fixing pieces are connected with the fuselage fixing pieces through traction pieces. According to the large-wingspan flexible inflatable wing, the wing can be prevented from generating large structural deformation in the lift force direction under the gravity and pneumatic action, and the engineering application problem that an existing large-wingspan flexible inflatable wing is large in deformation under the gravity and pneumatic load can be solved; the pulling point arrangement along the spanwise direction and the chordwise direction can be flexibly determined according to flight conditions; a certain dihedral angle or dihedral angle is pre-set for the inflatable wing by adjusting the length of the pull rope, so that the transverse stability of the aircraft is improved.

The utility model discloses a rail brace type elastic strip which comprises an elastic strip body, a vertical supporting part is arranged at the bottom of the elastic strip body, the vertical supporting part vertically limits the rail bottom of a steel rail, an elastic strip middle limb or an elastic strip side limb is bent upwards in an inclined mode to form a transverse supporting part, and the transverse supporting part transversely supports and limits the rail waist of the steel rail. The utility model further discloses an elastic strip rail brace type fastener system which comprises an insulation coupling base plate, a bottom base plate and an under-rail pad which are arranged from bottom to top, the rail brace type elastic strip is arranged at the position, corresponding to the outer side of the steel rail, of the bottom base plate, an insulation module is arranged at the position, corresponding to the rail brace type elastic strip and the steel rail, of the bottom base plate, and a second elastic strip is arranged at the position, corresponding to the inner side of the steel rail, of the bottom base plate. The transverse limiting function of the rail waist of the steel rail is increased through the structural design of the rail brace elastic strips, and the elastic strip rail brace type fastener system which is high in transverse stability and low in installation and maintenance cost is achieved on the premise that elastic split type fastener parts are not increased.

The invention relates to a vehicle curve self-adaptive cruise stability control method utilizing differential steering, which adopts a hierarchical control architecture, and combines a differential steering control strategy based on MFAC and a fuzzy logic rule of multi-target weight coefficient self-adjustment based on MPC in upper layer control, so that the stability of the vehicle curve self-adaptive cruise stability is improved. Taking the actual vehicle speed, acceleration, position, yaw velocity and side slip angle of the vehicle as input, and outputting to obtain the expected acceleration of the vehicle; in the lower-layer control, driving and braking switching logic based on a deceleration protection range threshold value and a feedforward-feedback fusion control strategy based on an acceleration error are combined, the actual vehicle speed, the acceleration and the expected vehicle acceleration of the vehicle serve as input, and a vehicle hub motor torque signal is output and obtained; and transmitting the vehicle hub motor torque signal to the vehicle hub motor so as to correspondingly control and change the driving state of the vehicle. Compared with the prior art, the transverse stability of the vehicle in the curve vehicle following process can be improved, and the transverse displacement deviation can be reduced.

The utility model discloses a large-span bridge-floor-free simply-supported tied arch bridge which comprises bridge piers, a first main arch and a second main arch. The first main arch and the second main arch are arranged on the two sides of the arch bridge. The bridge piers are arranged at the two ends of the first main arch and the two ends of the second main arch and connected with the first main arch and the second main arch through supports. The first main arch and the second main arch are each of a four-steel-pipe truss type structure. A first wind brace and a second wind brace are fixedly arranged between the first main arch and the second main arch, straining beams are arranged on the two sides of the arch bridge in the length direction, and a cross beam is arranged between the straining beams on the two sides of the arch bridge and used for bearing a coal conveying pipe belt machine. And suspenders are respectively arranged between the straining beam and the first main arch and between the straining beam and the second main arch. The steel consumption of the large-span arch bridge is reduced, the four-steel-pipe truss type main arch is adopted, the rise of the main arch is reduced, and the transverse stability of the structure is improved; and the suspender tensioning procedure is simplified, and the construction difficulty is reduced.

This utility model discloses a bulb flat steel with an embedded mounting groove, belonging to the field of bulb flat steel technology. It includes a first steel plate and a second steel plate disposed on the right side of the first steel plate. T-shaped plates are uniformly fixedly connected to the outer right side of the first steel plate. A groove is formed on the right side of the bottom of the T-shaped plate, and a rotating shaft is rotatably connected within the groove. A deflecting plate is fixedly connected to the rotating shaft. T-shaped grooves are uniformly formed on the outer left side of the second steel plate, and a slanted groove is formed on the right side of the bottom of the T-shaped groove. First fixing bolts are threaded to the bottom of the second steel plate. This bulb flat steel with an embedded mounting groove eliminates the need for precise drilling in the bulb flat steel through the embedded fit of the T-shaped plates and T-shaped grooves. During installation, the T-shaped plates are simply inserted into the T-shaped grooves, and initial fixing is achieved through the linkage of the deflecting plate and the slanted groove. This reduces the repeated alignment and tightening steps of traditional bolt connections, lowers the reliance on the installer's skill level, and significantly improves installation efficiency.

The invention relates to a supporting system for a rectangular pier column elevated cantilever cover beam, which comprises a supporting assembly, a supporting rod assembly, a supporting rod assembly, a supporting rod assembly, a supporting rod assembly and a supporting rod assembly, and is characterized in that the supporting assembly is fixedly mounted on a pier column through a bracket assembly; the platform assembly is fixedly installed at the top end of the supporting assembly, located at the bottom end of the cover beam and suitable for construction; the bracket assembly comprises a bracket body and a connecting unit, one end of the connecting unit is embedded in the pier column, the bracket body is embedded in the other end of the connecting unit, and the bracket body is suitable for bearing the supporting assembly. The bracket body of the supporting system is accurate in mounting position and high in overall stress stability, and deformation and deviation are avoided; the supporting assembly is used for supporting the cover beam, has the advantages of being large in load capacity and good in interchangeability, can be suitable for construction of various elevated cover beams and is wide in application range. And the platform assembly is fixedly installed at the top end of the supporting assembly and the bottom end of the cover beam, construction of workers is facilitated, convenience and rapidness are achieved, a protective net is further arranged at the outer end of the platform assembly, and safety is high.

The utility model relates to a transverse impedance multidirectional damping steel spring device which comprises a spring outer sleeve (1), a steel spring (5) and a spring inner sleeve, the spring inner sleeve comprises a spring inner sleeve cover (2) and a spring inner sleeve base (6), and a transverse impedance elastic body (3) for transverse limiting is arranged between the spring outer sleeve (1) and the spring inner sleeve base (6). Compared with the prior art, three-direction damping amplification is adopted, besides the main vibration isolation direction, the stability and vibration in the direction perpendicular to the main vibration isolation direction of the spring can be controlled, and meanwhile the problem that the spring is subjected to transverse shearing dynamic load to cause fatigue fracture and failure of the spring is solved; therefore, the transverse stability and reliability are improved, and the service life of parts is prolonged.

The utility model relates to a movable dustproof awning supporting device which comprises a horizontal support, a stand column, an inclined supporting rod, a balance weight frame, a top beam, a steel wire rope and a ground beam. The stand column is vertically installed in the middle of the horizontal support. The top end of the inclined supporting rod is fixedly connected with the stand column, and the bottom end of the inclined supporting rod is fixedly installed on the horizontal support. A plurality of groups of horizontal supports, stand columns, inclined supporting rods and counterweight frames are arranged at intervals in the front-back direction, and the top of each stand column is detachably connected with a top beam. Ground beams are vertically and detachably connected between the horizontal supports in the front-back direction, the ground beams are located on the side opposite to the inclined supporting rods, and the balance weight frames are arranged on the connecting points of the ground beams and the horizontal supports; the horizontal supports, the stand columns, the inclined supporting rods, the balance weight frames and the top beams are arranged in two rows in a bilateral symmetry mode, and steel wire ropes are vertically connected between the left set of top beams and the right set of top beams. Compared with a traditional dustproof awning supporting structure, bolts do not need to be embedded, and a foundation does not need to be poured; and after use, the top beam and the ground beam can be detached and can be repeatedly used, so that the construction cost is reduced.

The utility model discloses an anti-swing device for a lifting hook of a building tower crane, which relates to the technical field of building tower cranes and comprises a top plate, two winches are symmetrically and fixedly connected to the top of the top plate, a first steel rope is wound on the surface of each winch, a limiting plate is fixedly connected to the bottom of each first steel rope, and ports are mounted on two sides of the bottom of each limiting plate. The two ends of the third steel rope are connected with the two pull rings, one pull ring limits transverse shaking of the side plate and ensures that the position of the side plate is stable, the other pull ring is fixed to the first installation frame, the steel rope is kept tightened, and in order to achieve accurate adjustment of the tension and angle of the steel rope, the steel rope is prevented from falling off. A tensioning adjusting mechanism composed of a limiting plate, a handle, a threaded rod and a moving block is designed, the threaded rod is driven to rotate by rotating the handle, and then the moving block is driven to move horizontally, so that the included angle and the tensioning force of the steel rope are adjusted, and the adaptability of the system to different materials and construction environments is enhanced.

The invention discloses a marine empennage, which relates to the technical field of ships, and comprises a ship shell of a wave-shaped flat bottom structure, and the upper end of the ship shell is fixedly connected with a deck used for covering the space in a ship and horizontally dividing the space into layers; the side, close to a deck, of the hull is fixedly connected with a cabin used for storing materials and allowing sailors to work and live, the outer wall of the side, away from the cabin, of the hull is fixedly connected with an empennage plate body used for keeping course stability and providing rotation or trim adjusting capacity, and dynamic wingspan expansion mechanisms are arranged on the two sides of the upper end of the empennage plate body. An arc wing guide swing mechanism is arranged at the center of the upper end of the empennage plate body, a trapping screen wing mechanism is arranged on one side of the tail end of the empennage plate body, plate wings and an electric telescopic rod are matched with each other, and the stress area of the empennage can be increased by improving the sailing performance and expanding the wingspan; therefore, larger lift force is generated under the condition of the same wind speed or water flow.

The crane comprises a vehicle body, a slewing ring and an arm frame, the slewing ring is rotatably mounted on the vehicle frame about a vertical axis, and one end of the arm frame is connected to the slewing ring; and a lateral wind-resistant device, which comprises two wind-resistant parts arranged on the left and right sides of the arm frame, each wind-resistant part comprises a first cable and an adjusting device, one end of the first cable is connected to the arm frame, and the adjusting device is configured to adjust the included angle between the first cable and the arm frame. The crane provided by the present disclosure can adapt to the operation requirements in harsh environments with strong wind and gale.

The utility model discloses an electric ship, including ship body structure, deck structure, ship bottom support structure, power system and advancing system. The utility model connects bridge through rigid connection piece body and two groups of lower piece, and the ship body torsional rigidity and transverse stability are improved obviously, form the low resistance navigation characteristic of catamaran's particularity, and the space utilization rate is optimized through the functional division of the layered arrangement upper deck and lower deck, and the grid skeleton of the ship bottom support structure is embedded, and the lower piece structure strength is strengthened, and the integrated ballast water tank function enhances the ship counterweight adjusting capacity, and the power system passes through the modularization battery pack, and the battery thermal runaway risk is reduced while ensuring the energy supply stability, and the advancing system adopts the combination scheme of sectional flange connection structure and watertight packaging subassembly, guarantees the transmission stability of drive shaft when the ship body deformation, avoids the water seepage into the transmission mechanism, satisfies the torsional deformation and the propulsion efficiency such as ship operation core demand.

The utility model discloses a waste stripping device of an application die-cutting machine, relates to the technical field of application production equipment, and aims to solve the technical problems that in the current waste stripping process, finished products are easy to damage, waste is easy to break, the waste is easy to scatter, and the production environment is influenced. The stripping device comprises two fixing frames, a stripping roller close to the top face of the conveying belt is fixedly installed between the two fixing frames, the stripping roller comprises two connecting pieces, a fixing roller is rotatably installed between the two connecting pieces, and a plurality of elastic anti-sticking cushion blocks are installed on the surface of the fixing roller in an array mode. The waste stripping device can adapt to waste with different thicknesses, is tightly attached to an application material through elastic deformation, prevents the waste from slipping or breaking in the stripping process, can actively adhere to the edge of the waste by matching with the flexible characteristic of the adhesion strip, and has the advantages of continuous waste stripping, difficulty in breaking and improvement of the quality of a finished product by matching with the rotation of the stripping roller.

This utility model discloses a bridge hanger assembly, including a first connecting rod and a second connecting rod. A first frame and a second frame are respectively fixedly welded to the bottom ends of the first and second connecting rods. A first insertion slot and a second insertion slot are respectively formed on the first and second connecting rods. A first mounting component is fixedly welded to the top of the first frame, and a second mounting component is welded to the top of the second frame. The second frame and the second mounting component are double-layered plates with internal cavities. In this utility model, the two hangers are connected to a single point at their bottom, and their tops are supported at two positions on an arched frame. This design saves installation space at the bottom and reduces the vertical tension of a single hanger. By distributing the load between the two hangers, the assembly can withstand both vertical tension and horizontal forces, increasing wind resistance and lateral stability.

The present invention discloses a nonlinear metamaterial vibration isolator with quasi-zero stiffness, which belongs to the technical field of metamaterials and vibration reduction and noise reduction. The vibration isolator is composed of structural parts and vibration isolation components. The vibration isolation components play the role of vibration isolation and buffering. A polymer material with a certain load-bearing capacity is used. The interior of the vibration isolation component has a metamaterial structure formed by periodic arrangement of metamaterial unit cells. The geometric shape of the metamaterial unit cell is similar to a half hexagon. The metamaterial structure is obtained by periodic arrays of metamaterial unit cells in the vertical and horizontal directions. The structural parts are made of metal materials, and the structural parts and the vibration isolation components are connected in a composite manner of mechanical locking and bonding. The present invention can realize the quasi-zero stiffness nonlinear characteristics of the vibration isolator, greatly reduce the natural frequency of the vibration isolator while ensuring the stability of the system, and effectively improve the vibration isolation effect.

The utility model discloses a combined road surface temporary widening structure for large piece transportation relates to highway engineering technical field, and the purpose is to make the steel plate that lays the road surface wider can be stable under the heavy pressure of vehicle, and the following technical scheme is proposed: including multiple sets of steel plates, multiple sets of steel plates one end is located on the roadbed, and the other end of multiple sets of steel plates is suspended above the recessed area outside the roadbed, and the bottom of each set of steel plates is installed counterweight part away from the side of river course, and the counterweight part is connected with each other, and the counterweight part is arranged in the base groove of roadbed opening. Compared with the mode that the traditional concrete is supported by the aid of the column in the recessed area and is poured, the utility model only needs to dig the base groove on the side away from the recessed area, and the counterweight part is put into and is connected with the steel plate, can avoid the preliminary work such as drainage, dredging under the complex environment, also need not to build construction platform, use professional equipment and technical personnel to pour the concrete, greatly simplifies the construction process, and reduces the construction cost.

The utility model relates to a kind of multi-airbag coordinated trim's offshore semi-submersible vessel, belong to offshore semi-submersible vessel technical field, including semi-submersible vessel ontology, the front and rear sides of the left side of the upper surface of semi-submersible vessel ontology are all fixed with several first airbags by large cylinder bracket, one side of semi-submersible vessel ontology is equipped with anti-drop mechanism, and the anti-drop mechanism includes the fixed frame of being fixed in one side of semi-submersible vessel ontology and the number of two. The multi-airbag coordinated trim's offshore semi-submersible vessel, the stability when the ship dives can be increased by the buoyancy of several first airbags of front and rear sides, reduce swing and vibration, two second airbags are fixed in the two sides of semi-submersible vessel ontology, further enhance the lateral stability of ship, ensure that ship keeps balance in diving process, by the cooperation of fixed plate and protection frame, the outside protection performance of several first airbags of front and rear sides is promoted, reduce the impact of airbag in diving process by external object.

The utility model discloses a driving axle system of a sitting type forward forklift, which comprises a frame and a driving axle arranged below the frame, the driving axle is provided with a driving part for controlling the frame to complete steering, and the driving axle is also provided with two auxiliary parts for preventing a vehicle from transversely tipping over; the auxiliary part comprises an upper spring seat installed on the drive axle, a lower spring seat is arranged below the upper spring seat, the upper spring seat and the lower spring seat are connected through a spring, and an auxiliary wheel is arranged on the lower spring seat. The auxiliary wheel is simple in structure, through the arrangement of the auxiliary part, the upper spring seat overcomes the action of spring force to move downwards until the upper spring seat makes contact with the lower spring seat, rigid connection between the auxiliary wheel and the drive axle is achieved, when a vehicle tends to be overturned transversely, overturning torque can be resisted, and the transverse stability of the whole vehicle can be improved.

The invention discloses a safety wheelchair, and belongs to the technical field of medical auxiliary instruments, the safety wheelchair comprises a wheelchair body, a foot anti-toppling structure for performing safety protection on the angle of a patient is arranged at the front position of the wheelchair body, and the foot anti-toppling structure is rotatably connected with the wheelchair body; a safety anti-toppling structure is arranged at the rear position of the wheelchair body and is in sliding fit with the wheelchair body, two symmetrically-arranged sponge armrests are arranged on the wheelchair body, and a body protection structure for conducting safety protection on the body of a patient is arranged between the two sponge armrests. The body protection structure is in sliding fit with the two sponge armrests on the wheelchair body; the safety anti-toppling structure is arranged, and in the using process, the posture of the wheelchair body can be adjusted according to the different angle positions of the wheelchair body on the uphill or downhill, so that the wheelchair body can be prevented from toppling.

A prefabricated beam bridge reinforcement component, the beam bridge includes a beam body and a bridge pier and a cap bearing the beam body, the reinforcement component includes a concrete pier, a double limb, a double limb bottom hinge, a steel cross bar, a lower H-shaped steel, an upper H-shaped steel, a stiffening plate, a top plate and an angle adjustment pillar; two double limbs are connected by a steel cross bar to form a prefabricated component; a plurality of prefabricated components are superimposed, a lower H-shaped steel is installed on the double limbs at the top, and the double limbs at the bottom are supported on the cap through the double limb bottom hinge and the concrete piers, an upper H-shaped steel is arranged on the lower H-shaped steel, a top plate is arranged on the top of the upper H-shaped steel through a stiffening plate, the top plate is supported at the reinforcement position at the bottom of the beam body, and the upper H-shaped steel and the lower H-shaped steel are connected by an angle adjustment pillar. The present invention forms a new load-bearing structure by adding a left-right symmetrical prefabricated component and combining the supporting connection structure at the bottom of the beam, which significantly reduces the mid-span bending moment of the beam bridge and effectively prolongs the service life of the bridge.

Embodiments of the present application provide a vehicle trajectory correction method and device, electronic equipment and vehicle. The method comprises: when the driver releases the accelerator pedal, applying a negative kinetic energy recovery torque to each wheel; determining whether the vehicle is running on a non-uniform road surface according to the kinetic energy recovery torque applied to each wheel and the slip rate of each wheel; if the vehicle is running on a non-uniform road surface, determining the yaw moment when the vehicle trajectory deviates on the non-uniform road surface based on the kinetic energy recovery torque applied to each wheel and the front wheel track and rear wheel track of the vehicle; based on the yaw moment, controlling each wheel to rotate a corresponding target angle to generate a reverse yaw moment opposite to the direction of the yaw moment to eliminate the trajectory deviation of the vehicle. The method controls each wheel to rotate a corresponding target angle to generate a reverse yaw moment opposite to the direction of the yaw moment to correct the trajectory of the vehicle and improve the driving safety of the vehicle.

This invention relates to the field of bridge construction technology, and particularly to a steel-concrete composite beam support and its preloading construction method. The steel-concrete composite beam support includes two rows of separate side supports, which are used to symmetrically support the bottom of the side boxes on both sides of the main steel beam. Multiple rows of steel pipe columns are arranged at intervals, and each row of steel pipe columns includes multiple steel pipe columns. Adjacent steel pipe columns are connected by diagonal bracing groove steel frames. A transverse distribution beam is fixed at the top of the multiple rows of steel pipe columns, and a Bailey beam is fixed on the transverse distribution beam. A track distribution beam is set on the top of the Bailey beam, and a sliding track is set on the track distribution beam. A transport trolley slides on the sliding track. The sliding track and transport trolley realize dynamic segmented preloading, ensuring that the settlement data accurately reflects the performance of the support. The modular structure facilitates rapid assembly and shortens the construction period. The symmetrical arrangement of the separate side supports avoids load concentration in the middle, reduces local stress concentration, and results in a more uniform load distribution, making it suitable for the construction of long-span bridges.

The invention relates to a wheel track adjustable double-wheel suspension and a vehicle using the same, belongs to the technical field of vehicle chassis, and particularly relates to the technical field of balanced suspension control. The double-wheel suspension is connected with two wheels through a multi-connecting-rod mechanism according to the set wheel distance, double-wheel bearing and suspension mechanism linkage are achieved, double shock absorbers deform in a coordinated mode, and the ground adaptability and the transverse stability of the vehicle are improved. The transverse double-wheel balanced suspension is provided, the vehicle wheel track is dynamically adjustable, and the transverse double-wheel balanced suspension has the advantages of being light in self weight, good in damping and guiding buffering effect and high in transverse stability and is applied to balanced suspension systems of various multipurpose automobiles, and a new method is provided for vehicle design.

The utility model relates to the technical field of building structure supporting, in particular to a BIM (Building Information Modeling)-based supporting device for a building structure, which comprises a supporting mechanism, a clamping mechanism and a moving mechanism, a mounting box is reinforced and supported through a triangular reinforcing block arranged on the supporting mechanism, the transverse stability of the supporting mechanism in the use process is improved, and the stability of the supporting mechanism is improved. Inclination caused by overlarge load is avoided, and the construction effect is prevented from being affected. And the clamping frame is located at a proper spatial position by adjusting the elongation of the transverse telescopic rod. The cables are laid in the separation grooves by opening the side baffles of the clamping frame, then the limiting sliding rod on one side is inserted and fixed to the top end of the first clamping plate, and the second clamping plate is driven to move up and down by rotating an adjusting bolt arranged on the clamping mechanism, so that the fixing or limiting effect of the cables is achieved; the cable is prevented from being disordered in the pulling process, the using effect of the device is improved, and meanwhile operation convenience is provided for later maintenance personnel.

The present application relates to a kind of permanent magnet electromagnetic hybrid's traction suspension guide three-in-one's magnetic suspension system, including track beam, vehicle-mounted permanent magnet array, track electromagnet coil, vehicle-mounted permanent magnet array is fixed to the bottom of vehicle suspension frame;Track electromagnet coil is correspondingly arranged on the upper surface of track beam, and is oppositely arranged with vehicle-mounted permanent magnet array.The system relies on the repulsion between the constant magnetic field generated by vehicle-mounted permanent magnet array and the controlled electromagnetic field generated by track electromagnet coil after energization, while realizing the non-contact suspension, guidance and traction of vehicle.The present application solves the problems of existing magnetic levitation system, such as complex structure, difficult control, high energy consumption and poor compatibility with existing infrastructure.

The utility model provides an inverted cold-bending curled steel composite beam structure which comprises a composite beam unit and a concrete bridge deck arranged on the composite beam unit, the composite beam unit comprises a plurality of cold-bending curled steel beams which are arranged in parallel, each cold-bending curled steel beam comprises an upper flange plate, two webs and two lower flange plates, the two lower flange plates are horizontally rolled outwards along the bottom ends of the webs, the upper flange plate, the two webs and the two lower flange plates define a hollow steel beam structure with an inverted-U-shaped cross section, a plurality of bolt penetrating holes are formed in the two lower flange plates of each cold-bent edge-rolled steel beam, and every two adjacent cold-bent edge-rolled steel beams are connected through a plurality of inter-beam lacing bars. According to the utility model, the cold-bending curled steel beams are designed into inverted structures, so that bending and torsional stress can be better resisted, the separated cold-bending curled steel beams can be conveniently and quickly connected through the lacing bars between the beams, and the construction difficulty and risk are greatly reduced.

The utility model discloses a bottom installation suite of a steel structure column, which belongs to the technical field of steel structure columns and comprises a steel structure column, a base is arranged at the bottom of the steel structure column, a fixing frame is arranged at the top of the base, a square groove is formed in the base, the square groove is formed in the bottom of the fixing frame, and the fixing frame is arranged in the square groove. The diameter of the section of the square groove is smaller than that of the section of the fixing frame, a screw hole is formed in the position, close to the square groove, of the top of the base, the screw hole is formed in the fixing frame, a mounting frame is arranged at the top of the square groove and located at the bottom of the fixing frame, and the circumcircle of the mounting frame is matched with the incircle of the fixing frame. The base is placed in a pre-buried foundation pit, the mounting frame is placed in the fixing frame to be fixed through threaded connection and is stabilized by the grounding bar, then the steel structure column penetrates into the fixing seat to be stabilized, and then the U-shaped supporting plate is supported through threaded connection, so that the side stability of the steel structure column is further enhanced.