32results about How to "Strong steel" patented technology

The invention discloses a structural concrete type truck scale and installation method thereof. The structural concrete type truck scale includes a plurality of truck scale modules which are connected through connecting pieces; each truck scale module includes a reinforced concrete weighing platform and a weight sensor arranged under the reinforced concrete weighing platform; an edge of a long side of the reinforced concrete weighing platform is of a large H steel girder structure, a reinforcing mesh structure is arranged inside the reinforced concrete weighing platform, and the reinforcing mesh structure is poured into a table surface through model concrete. By use of the truck scale module structure, H steel and concrete pouring are combined, the steel structure concrete type truck scale is formed, the exterior uses H steel as a girder, the interior uses a mould to perform pouring, perfect appearance quality and interior quality are ensured, and at the same time, specialized scale body cement curing is performed inside a factory. The truck scale is internally provided with the reinforcing mesh structure, thereby increasing the stability of the weighing table and prolonging the service life.

The invention relates to a dual-axis rotary automatic tracking solar energy device. The device is fixedly connected with a horizontal rotary reducer on the flange plate of the lower column, the flange plate at the lower end of the upper column is fixed on the flange plate of the power output shaft of the horizontal rotary reducer, and the flange plate at the upper end of the upper column is fixed with a connecting plate. The support beam shaft tube is equipped with a vertical rotary reducer in the middle of the support beam shaft tube, and bearing seats are respectively provided at both ends of the support beam shaft tube. The left and right power output shafts are connected, and the other ends of the rotating shaft tubes of a pair of brackets are respectively fitted into two bearing seats, and extend out of the two bearing seats to be fixed on the solar panel component brackets respectively; Rotation has the advantages of high tracking accuracy, strong rigidity of the whole machine, not easy to deform, low consumables, long life, not easy to produce lower deflection, good torque resistance, and convenient disassembly and assembly.

A stereo garage comprises a driving framework, a guiding framework, a fixed beam, sealed guiding rails, lifting chains, a driving shaft, bearing frameworks, lifting chain sheets and a guiding rail. The driving framework and the guiding framework are of framework structures formed by square steel tubes which are welded; the fixed beam is fixedly connected between the driving framework and the guiding framework and forms a bearing main body with the driving framework and the guiding framework; the sealed guiding rails are respectively arranged in a vertical frame body of the driving framework and a vertical frame body of the guiding framework; the lifting chains are arranged on the sealed guiding rails, the lifting chains can circularly move in the sealed guiding rails and form a lifting system with the sealed guiding rails; the guiding rail is arranged on the outer side of the guiding framework; a plurality of lifting chain sheets are evenly distributed on each lifting chain; a plurality of bearing frameworks are horizontally arranged between two corresponding lifting chains in parallel, and hinge shafts of beams on the two sides of each bearing framework are in hinge connection with corresponding lifting chain sheets. The stereo garage is small in floor area, easy to process, flexible in transmission and low in construction cost.

The invention relates to a large continuous air supply type air-heated vaporizer. The large continuous air supply type air-heated vaporizer comprises a heat exchange fin tube bundle which is arranged between a liquid inlet and an air outlet and arranged in a matrix mode, the heat exchange fin tube bundle is divided into an undercooling section, an evaporation section and a heating section which are parallel from the liquid inlet to the air outlet, the undercooling section, the evaporation section and the heating section are connected between the liquid inlet and the air outlet in series, each of the undercooling section and the heating section comprises at least one row of heat exchange fin tubes, the evaporation section comprises a plurality of rows of heat exchange fin tubes which are connected in series. According to the air-heated vaporizer, the undercooling section, the evaporation section and the heating section of the heat exchange fin tube bundle are connected in series, the evaporation section comprises the plurality of rows of heat exchange fin tubes which are connected in series, the arrangement is reasonable, the structure is compact, the overall rigidity is high, the vaporizer is attractive and elegant in appearance, cryogenic fluids can be distributed to pipes evenly, bias current can be avoided, and requirements for high-flow continuous air supply are met.

The invention provides a vertical type wind power generation system provided with dual blades and a multi-layer reinforced concrete frame. The vertical type wind power generation system aims to solve the problem that in an existing wind power generation system, the wind bearing area of blades is small, the wind power utilizing rate is low, wind resistance of the front wind surface is large, a reversing angle is large, large capacity is achieved difficultly, work ability in a high-wind-speed area and a low-wind-speed area is poor, a work wind area range is small, poor continuous work ability and poor stability of the existing wind power generation system in a fierce-wind environment affect the overturning moment of force so that the existing wind power generation system can be blown to be damaged easily, and therefore electricity generation efficiency and safety of the existing wind power generation system are affected. The vertical type wind power generation system comprises the multi-layer reinforced concrete frame, a moving wind-collecting protective system, a fixed extending wind-collecting system, a wind power system and an electricity generating system. The vertical type wind power generation system with the reinforced concrete frame is extremely high in stability, and suitable for various high-wind-speed areas and low-wind-speed areas, and the dual combination blades can effectively work in the high-wind-speed areas and the low-wind-speed areas. The vertical type wind power generation system is used for land wind power generation systems, and can also be used for offshore wind power generation systems.

The invention belongs to the technical field of fiber preparation, and particularly to polyacrylonitrile fiber and a preparation method thereof. The polyacrylonitrile fiber comprises a polymer A and apolymer B, wherein the content of the polymer B in the polyacrylonitrile fiber is any content, preferably 0-30 wt%, more preferably 10-20 wt%, the polymer A is prepared from 92-94 wt% of acrylonitrile and 6-8 wt% of vinyl acetate, and the polymer B is prepared from 88-99 wt% of acrylonitrile, 0.8-8 wt% of methyl acrylate and 0.2-4.8 wt% of itaconic acid. According to the present invention, the polyacrylonitrile fiber has excellent characteristics of resilience, covering property, bulkiness and stiffness of the dry polyacrylonitrile fibers, and further has characteristics of smoothness and good spinning performance of wet polyacrylonitrile fibers.

The invention discloses a lightweight high-strength carbon fiber-based composite material fishing rod which is characterized in that a preparation method of the fishing rod comprises the following steps: (1) preparation of an oligomer solution, (2) preparation of matrix resin, (3) preparation of a modified carbon nanotube / nano boron fiber composite material, (4) preparation of a prepreg, and (5) preparation of the fishing rod. The preparation method is simple and feasible, and the prepared carbon fiber-based composite fishing rod is low in price, light in weight, strong in rigidity, good in toughness, high in firmness and excellent in antistatic property and aging resistance.

The invention provides a direct-current storage battery carrying and stair climbing device. According to the technical scheme, a frame with a lifting mechanism is adopted for bearing a storage battery, and therefore load-bearing stair climbing movement is completed instead of manpower; specifically, a storage battery tray and a storage battery fixing plate are correspondingly fixed at the front end of a basic frame, and a binding belt is combined to play a role in fixing the storage battery; on the rear side of the basic frame, two S-shaped supporting arms are driven by a gear motor to rotatealternately, so that the walking mode of a human body is simulated, stair climbing movement is formed, and compared with vertical lifting of a conventional straight supporting arm, the stair climbingmode is small in vibration and better in stability; the gear motor is powered by a lithium battery, and the lithium battery can be designed into a detachable structure, so that the lithium battery canbe detached for independent charging after the electric quantity is exhausted, and continuous operation of the device can be ensured by replacing the battery; and the device is particularly suitablefor carrying work of a transformer substation storage battery, manpower can be effectively saved, and the engineering implementation efficiency is fully improved.

The invention relates to the technical field of butterfly valve equipment, in particular to an electric ultrahigh-temperature butterfly valve. The electric ultrahigh-temperature butterfly valve comprises a circular valve body, a valve shaft and a butterfly plate, wherein the valve shaft is arranged inside the circular valve body; the butterfly plate rotates around valve shaft; a sealing ring is arranged between the butterfly plate and the circular valve body; an electric actuator is mounted on the outer side the circular valve body and connected with an end part of the valve shaft. By adopting the structure, the electric ultrahigh-temperature butterfly valve has the advantages of high temperature resistance, wear resistance, strong rigidity, less heat loss, excellent heat preservation effects, reasonable structure, accurate indication direction, long service life and the like and is flexible in operation and convenient to maintain.

The invention discloses a preparation process of a high-performance PC material. The preparation process comprises the following steps: melting, quickly cooling, discharging, annealing, and forming. A finished product prepared from PC high molecules as raw materials is relatively high in toughness. The product is subjected to heat treatment by adopting an annealing process, the formed product is free of color change, ageing and cracking, is relatively high in rigidity and can be dismounted and mounted for multiple times, and the service life of the formed product is remarkably prolonged. Through detection, both temperature resistance and temperature interchange resistance of the material can meet the industry standards; detection results are all higher than regulations of the industry standards by testing the tensile strength, bending strength and cantilever beam shock of the material. The process is simple in equipment, convenient to carry out, relatively quick in formation and suitable for large-scale production.

A vertical wind power generation system with dual fan blades mounted and a multi-layer reinforced concrete frame. The system solves a problem in a prior wind power generation system that a power generation efficiency thereof and safety of a wind power generator are affected because a wind bearing area of a fan blade is small, a wind power utilization rate is low, wind resistance of a front wing surface is large, a reversing dead angle is large, a large capacity is difficult to achieve, a working capability in a high-wind-speed area and a low-wind-speed area is poor, a working wind area range is small, especially a capability to continuously work in a fierce wind environment is poor, and stability thereof is low, making an overturning moment easily be destroyed by a fierce wind. The system comprises the multi-layer reinforced concrete frame, a movable wind-collection protection system, a fixed extending wind-collection system, a wind power system and a power generation system. The system is a vertical wind power generation system with the reinforced concrete frame, has a high stability and applies to various high- and low-wind-speed areas. The dual combined fan blades can effectively work in high- and low-wind-speed areas. The system is used for a land wind power generation system, and can also be used for an offshore wind power generation system.

The invention discloses a prefabricated brick moulding bed mortise and tenon joint structure and a construction method. The prefabricated brick moulding bed mortise and tenon joint structure comprisesa plurality of prefabricated slabs, wherein the prefabricated slabs are provided with clamping grooves and / or clamping pieces; the clamping grooves and the clamping pieces are connected in a one-to-one correspondence mode; a plurality of first connecting pieces are arranged in the clamping grooves; the clamping pieces comprise clamping blocks and second connecting pieces; the second connecting pieces are fixedly connected with the clamping blocks; the second connecting pieces and the first connecting pieces are connected in a one-to-one correspondence mode; the prefabricated slabs are provided with structural steel bars; and the first connecting pieces and the second connecting pieces are formed by extending the structural steel bars. According to the prefabricated brick moulding bed mortise and tenon joint structure and the construction method, through the structural arrangement of the prefabricated slabs, when the adjacent prefabricated slabs are connected, the structural steel barsin the adjacent prefabricated slabs are also connected, so that a complete steel bar structural part is formed, and the stability of the prefabricated brick moulding bed mortise and tenon joint structure is guaranteed.

The invention discloses a TSA password buckle lock, which comprises an upper half shell and a lower half shell. One end of the upper half shell is provided with an upper gap, one end of the lower half shell is provided with a lower gap, and the upper gap and the lower gap are butted to form a buckle cover recess. There is a button hole in the lower notch, a button cover that can be automatically popped up after unlocking is installed on the upper notch, and a left lock tongue structure that is used to lock the button cover and limit the automatic pop-up of the button cover is installed in the lower half shell And the right deadbolt structure, the lower half shell is also provided with code wheel device, lock cylinder device, pendulum block that can swing up and down and the push button for controlling the left deadbolt structure and the right deadbolt structure to release the buckle cover restriction. The unlocking and unlocking method of the present invention is simple, the internal structure is small, and the installation is convenient.

The invention relates to the technical field of petrochemical industry production devices, in particular to a multi-zone reactor with a cyclone separator. The multi-zone reactor comprises a main cylinder and an auxiliary cylinder which are vertically arranged, and an annular shell is arranged between the top of the main cylinder and the top of the auxiliary cylinder. The cyclone separator comprises a pre-cyclone device arranged at the position, close to the main cylinder, of the annular shell and a cyclone guide device arranged at the inner top of the main cylinder, the cyclone guide device comprises an end socket located at the top of the main cylinder, a jacket and a plurality of flow guide partition plates, an annular flow channel is formed between the jacket and the inner wall of the end socket, and the flow guide partition plates are distributed in the annular flow channel in the circumferential direction; and the flow guide partition plate is in a spiral flow guide shape longitudinally. A pre-swirler can enable the flowing fluid to generate a rotating flow state around the bending central axis of the large annular shell, and the flow deviation state caused by centrifugal force when the flowing fluid flows through the annular shell is broken. And the flow guide device at the top of the main cylinder body can enable the fluid entering from the pre-swirler to generate a rotating flow state which is uniformly distributed in the circumferential direction around the central vertical axis of the main cylinder body, so that the effect of further strengthening the rotational flow is achieved.

The invention provides a track vibration insulation mounting plate with a dustproof function. The track vibration insulation mounting plate comprises a vibration insulation ring, a vibration insulation spring, a vibration absorption spring, a dustproof sleeve, vibration absorption liquid, a bolt, an anti-vibration screw, a lower vibration absorption plate and an upper vibration absorption plate, wherein the vibration insulation ring is arranged on the peripheral surface of one end of the bolt in a nesting manner, the vibration insulation spring is arranged on the peripheral surface of the middle part of the bolt, the anti-vibration screw is arranged at the bottom end of the bolt, the vibration absorption liquid is arranged at the upper end of the lower vibration absorption plate, the anti-vibration screw comprises a threaded rod, a first magnet, a fixing piece and a second magnet, the first magnet is arranged on the peripheral face of one end of the threaded rod, the fixing piece is arranged on the lower end face of the threaded rod, and the second magnet is arranged on the outer side face of the fixing piece. According to the track vibration insulation mounting plate, due to the arrangement of the vibration insulation spring, the dustproof sleeve and the anti-vibration screw, the dustproof effect is good, the vibration insulation effect of the vibration insulation spring is good, the bolt fixing effect is good, the vibration insulation and noise reduction effects are good, and market application and popularization are facilitated.

The invention provides a heat exchange module which comprises a shell, multiple first wind guiding members and multiple first spacing members. The first wind guiding members are arranged in the shell. Each first wind guiding member comprises multiple first structures and multiple second structures. The first structures are arranged in a mutually parallel way. The second structures are arranged among the first structures and connected with the first structures so as to form multiple first channels. The first spacing members are respectively arranged between two adjacent first wind guiding members so as to form second channels. The first channels and the second channels are different in airflow direction. The invention also provides an electronic device applying the heat exchange module.

The invention discloses a drilling tool float valve with an automatic protection function. The drilling tool float valve comprises a valve body, a valve sleeve, a valve seat, a protective cylinder anda mushroom-head valve element, wherein a limiting sleeve is arranged below the mushroom-head valve element, on one hand, it is guaranteed that a mud channel is smooth, and on the other hand, a springis protected against fatigue failure; the protective cylinder is of a floating structure, the protective cylinder can be lowered to form a protective cavity after the mud channel is opened so as to effectively protect a sealing ring, direct impact of mud is prevented, and the service life of the sealing ring can be prolonged; and when the sealing ring is compressed to a set amount, a lower conical limiting surface at the lower end of the valve seat is attached to an upper conical surface of the mushroom-head valve element together to enable the sealing ring to be protected, too large pressureis prevented from damaging the sealing ring, and the service life of the sealing ring and the service life of the spring are prolonged.

The present invention relates to a ball bearing inner groove automatic measurement charging device. When the ball bearing is assembled by using matched sleeve, the existent conventional measurement uses manual charging method, its measurement accuracy and quantity change are large, if the invented ball bearing inner groove size measurement automatic charging device is used for making charging, itcan be regulated only once, and can implement automatic charging, and can ensure product quality and product quantity. The composition of said product includes: upright column fixed on the measurement platform, measuring mechanism fixed on the described upright column, upper measurement slideway mounted in the described measuring mechanism, charging and discharging device fixed on the described measurement platform and lower measurement slideway fixed on the described measurement platform. Said product can be used for measuring ball bearing inner sleeve groove size.

The invention discloses a machine head cutter swing arm and connection rod device which comprises a cam transmission mechanism. A connection rod controlled by the cam transmission mechanism to continuously do vertical up-down movement is connected to a cam of the cam transmission mechanism, the lower end of the connection rod is movably connected to a clamping arm, the clamping arm is movably hinged to a swing arm mechanism through a pin, and the swing arm mechanism is used for controlling the vertical up-down movement distance of the connection rod and used for counteracting swing force of the connection rod. The swing arm mechanism is adopted for controlling the vertical up-down movement distance of the connection rod and counteracting swing force of the connection rod, the connection rod drives a cutter to always vertically move up and down, and the swing arm mechanism is made from titanium alloy, thereby being higher in rigidity. The cam drives the connection rod to move back and forth while rotated. The cam slides along a semi-circular groove so as to further stabilize the movement locus of the connection rod.

The invention discloses an outdoor movable blind window capable of resisting typhoon and a drive method for blinds of the outdoor movable blind window. The outdoor movable blind window capable of resisting typhoon comprises a plurality of blinds with rotary shafts, and further comprises a hinge mechanism formed by connecting a plurality of hinges, wherein the rotary shaft of each blind is connected to the hinge mechanism. The invention further provides a drive method for the blinds of the outdoor movable blind window capable of resisting typhoon, wherein the outdoor movable blind window capable of resisting typhoon comprises the plurality of blinds with the rotary shafts; and the drive method comprises the following steps of: connecting the rotary shafts of the blinds to the hinge mechanism, and realizing translation and / or rotation for the blinds by driving the hinge group. The outdoor movable blind window capable of resisting typhoon disclosed by the invention has prominent wind-resisting performance, operation and control performance, endurance performance and burglarproof performance, can be adaptive to bad meteorological environments such as typhoon and sand, and has a service life of being up to more than 25 years.

The invention relates to an agricultural fertilizer applying device. The agricultural fertilizer applying device comprises two fertilizer applying devices, a power transmission mechanism and two clutch mechanisms, wherein the power transmission mechanism is provided with a shaft sleeve, a driven sprocket, a driving sprocket, a chain, a power transmission rod, a rod sleeve, a driven gear and a driving gear fixedly connected with a wheel axle between two driving wheels of a walking tractor; each clutch mechanism is provided with a first end pipe, a second end pipe, a shifting fork, a shifting rod, a connecting plate and a spring. The agricultural fertilizer applying device has the advantages that power of the wheel axle can be transmitted to the fertilizer applying devices in an L shape, limitation of positions of wheels can be avoided, the power transmission mechanism can be arranged at the inner side of the wheels, and operation safety coefficient is improved; meanwhile, a mounting position of each fertilizer applying device can be customized, after moulting height of a fertilizer box is lowered, sight is wide when working, center of gravity also shifts down, and the walking tractor is more stable during sloping field operation and safe during travelling; and compared with a power transmission way of the traditional single chain mechanism, a structure that power of the wheel axle is transmitted to a chain mechanism by virtue of a power transmission rod by adopting the driving gear and the driven gear is more reliable.

The invention discloses a structural concrete type truck scale and installation method thereof. The structural concrete type truck scale includes a plurality of truck scale modules which are connected through connecting pieces; each truck scale module includes a reinforced concrete weighing platform and a weight sensor arranged under the reinforced concrete weighing platform; an edge of a long side of the reinforced concrete weighing platform is of a large H steel girder structure, a reinforcing mesh structure is arranged inside the reinforced concrete weighing platform, and the reinforcing mesh structure is poured into a table surface through model concrete. By use of the truck scale module structure, H steel and concrete pouring are combined, the steel structure concrete type truck scale is formed, the exterior uses H steel as a girder, the interior uses a mould to perform pouring, perfect appearance quality and interior quality are ensured, and at the same time, specialized scale body cement curing is performed inside a factory. The truck scale is internally provided with the reinforcing mesh structure, thereby increasing the stability of the weighing table and prolonging the service life.

The invention relates to a method for manufacturing a waist-shaped lining hole, which includes the following steps: S1, clamping a circular metal block by a clamp, and using an alloy drill to turn two through holes with the same diameter on the X axis; S2, passing an alloy drill on the Y axis. The arc milling cutter mills around two through holes to form a waist liner hole. The invention also processes the inner wall of the waist-shaped lining hole so that it can adapt to different moulds.

The invention relates to a steel plate for rib fracture inner fixing. The steel plate is arranged in the middle, a plurality of fixing claws are symmetrically arranged on the two sides of the middle steel plate, a screw hole is formed in the middle steel plate between the two corresponding fixing claws, the inner wall of the screw hole is covered with a high polymer material covering layer, the inner wall of the high polymer material covering layer is provided with a pressurizing hole formed by screw threads, and a reinforcing steel sleeve sleeves the middle steel plate. The steel plate for the rib fracture inner fixing is simple in structure, high in safety and suitable for clinic requirements, the reinforcing steel sleeve sleeves the steel plate, so that the strength of the whole fracture fixing steel plate is greatly improved, and the aim of connecting bones more firmly can be achieved. The inner wall of the screw hole is covered with the high polymer material covering layer, and the steel plate has stronger rigidity and stronger practicality.

The invention belongs to the technical field of fiber preparation, and particularly to polyacrylonitrile fiber and a preparation method thereof. The polyacrylonitrile fiber comprises a polymer A and apolymer B, wherein the content of the polymer B in the polyacrylonitrile fiber is any content, preferably 0-30 wt%, more preferably 10-20 wt%, the polymer A is prepared from 92-94 wt% of acrylonitrile and 6-8 wt% of vinyl acetate, and the polymer B is prepared from 88-99 wt% of acrylonitrile, 0.8-8 wt% of methyl acrylate and 0.2-4.8 wt% of itaconic acid. According to the present invention, the polyacrylonitrile fiber has excellent characteristics of resilience, covering property, bulkiness and stiffness of the dry polyacrylonitrile fibers, and further has characteristics of smoothness and good spinning performance of wet polyacrylonitrile fibers.

The invention relates to the technical field of building construction, in particular to an attached lifting operation safety protection platform guide rail for building construction. A plurality of anti-falling stop levers are fixed between two sliding ways of guide rail bodies at equal intervals from top to bottom, the anti-falling stop levers are fixedly connected with a square pipe through round steel, and longitudinal reinforcing rib plates are connected between the adjacent round steel. One side edge of each longitudinal reinforcing rib plate is fixed to the side wall of the square pipe,transverse reinforcing rib plates are fixed to the side wall of the round steel in a bilateral symmetry manner, one end of each transverse reinforcing rib plate is fixedly connected with the outer wall of the corresponding anti-falling stop lever, and the other end of each transverse reinforcing rib plate is fixedly connected with the side wall of the square pipe. End plates are fixed to one endsof the two guide rail bodies and one end of the square pipe, triangular reinforcing plates are fixed to the connecting positions of the end plates and the square pipe in a bilateral symmetry manner, and arc-shaped reinforcing plates are fixed to the connecting positions of the end plates and the guide rail bodies. According to the guide rail, rigidity is enhanced, torsion resistance is good, and instability is not prone to happening.

The annular gas injection and suction type nozzle comprises an inner cylinder, a middle cylinder and an outer cylinder, a cavity channel penetrating through the cylinder wall is formed in the inner cylinder, a top cover is arranged at one end of the inner cylinder and fixedly connected with the inner cylinder, and a plug is arranged at the other end of the inner cylinder; the middle cylinder is sleeved outside the inner cylinder; the middle cylinder is sleeved with the outer cylinder, and a low-pressure air inlet pipe is arranged on the cylinder wall of the outer cylinder; a high-pressure airinlet is formed in the central axis of the top cover and communicated with the inner cylinder, a cavity channel in the inner cylinder is communicated with a high-pressure interlayer, and the low-pressure air inlet pipe is communicated with the low-pressure interlayer. According to the invention, the ratio of high-pressure gas to low-pressure gas is greatly changed, the consumption of the high-pressure gas is reduced, the acting capability of the high-pressure gas is enhanced, the utilization efficiency of effective energy is remarkably improved, the middle cylinder and the outer cylinder of the annular nozzle are designed to be continuously movable and adjustable, and a high-pressure gas flow gap and a mixed gas outlet gap can be randomly adjusted; the optimal working condition of the nozzle can be obtained by adjusting and combining the two gaps, and tedious calculation of the venturi nozzle is avoided.

The invention discloses a mini-sized folding compound car, which is essentially different from the conventional and existing technologies. The car is provided with a special structure, and the innovative design concept is provided based on the conventional concept. Two main wheel rim motors are arranged in front of and behind the central axis of the car body, two balance medium wheel cross arrangements are arranged at two ends of the radial middle part, propellers are used to generate tensile force lift force to two main wheel double-sleeve balance devices, the car is accelerated to climb, andstarts double-power drive, the double propellers are used to generate the tensile force lift force under the condition of no road section, the car can fly at the height of 0.5-1M away from the ground, and the car can fly for several M meters instantly to avoid collision in case of dangerous situations. The car is provided with an all-directional protection device to ensure the safety protection of passengers and the safety of the car, the car can drive on a narrow road section which only allows the two-wheeled vehicle to pass, the traffic jam of the metropolises can be relieved, and the car is an ideal modern car.