146results about How to "Does not affect driving" patented technology

The invention discloses a vehicle load dynamic weighing method for an orthotropic bridge deck steel box girder bridge, which relates to the field of bridge health monitoring. The method comprises the following steps of: mounting a fiber grating strain sensor at the bottom of a U-shaped rib of an internal top plate of an orthotropic bridge deck steel box girder; measuring longitudinal bridge strain of the U-shaped rib when a vehicle passes through the position of the sensor; converting the strain into an optical signal by the sensor; demodulating the optical signal by using a fiber grating demodulator; carrying out cross-correlation analysis on actually measured strains of measuring points on the same U-shaped rib in the steel box girder at different sections so as to determine vehicle speed of the vehicle; analyzing actually measured strain area vectors of measuring points on different U-shaped ribs in the steel box girder at the same section; and carrying out angle Cosine distance analysis by using a strain effect linear area vector of the U-shaped rib of the steel box girder so as to figure out transverse acting position and weight of each vehicle on a running lane. The vehicle load dynamic weighing method for the orthotropic bridge deck steel box girder bridge, disclosed by the invention, has the advantages of convenience for mounting, low manufacturing price, no need of interrupting transportation, no excavation or damage of the road surface and capability of achieving nondestructive and automatic dynamic weighing of the bridge vehicle load.

The invention discloses a city safety island based on pedestrian and non-motor vehicle separation, which comprises an island body, wherein the island body is in a triangular shape, the middle part of the island body is provided with a pedestrian waiting area in the island, both sides of the pedestrian waiting area in the island are provided with non-motor vehicle waiting areas in the island, the pedestrian waiting area is connected with a pedestrian street through a street and island crosswalk, the pedestrian waiting area is connected with the adjacent island body through a crosswalk between islands, the non-motor vehicle waiting area in the island is connected with the pedestrian street through a street and island non-motor vehicle crossing, and the non-motor vehicle waiting area in the island is connected with the adjacent island body through a non-motor vehicle crossing between the islands. The city safety island disclosed by the invention can effectively improve the safety and the comfort of pedestrians crossing the street, improve the crossing efficiency of pedestrians and non-motor vehicles and reduce the incidence of traffic accidents in street crossing, and road environment and city appearance are beautified.

The invention provides a method for controlling a common rail pressure limiting valve. The method includes the steps of calculating a rail pressure decrease rate, judging whether the limiting valve is opened or not according to the rail pressure decrease rate and a preset opening threshold value, stopping oil supplying and spraying after the pressure limiting valve is opened and when the closing condition of the limiting valve is satisfied, judging whether the pressure limiting valve is closed or not by comparing the rail pressure decrease rate and a closing threshold value, restarting oil supplying and spraying after the pressure limiting valve is judged to be closed, enabling the rail pressure to undergo stable transition to reach a preset rail pressure value, judging whether the fault that the pressure limiting valve can not be closed occurs or not, restarting oil supplying and spraying as well when the pressure limiting valve can not be closed, achieving stable transition of rail pressure, and enabling vehicles to run in a cyllopodia mode. According to the method, the opening state and the closing state of the pressure limiting valve can be rapidly and accurately judged, when an engine is under a frequent zero oil mass state, the pressure limiting valve can be rapidly and reliably closed, an common rail fuel system can restart normal running, and the phenomenon that the pressure limiting valve can not be closed after being open for a long time is avoided.

The invention discloses an anti-drop manhole cover device for automatically adjusting drainage. The device includes a mounting ring arranged at an upper port of a manhole channel, wherein the mountingring is internally provided with a lifting ring, the lifting ring is internally provided with a cover which can be opened, a bottom side edge of the lifting ring is uniformly provided with mounting rods, a bottom surface of the mounting ring is provided with suspension rods matched with the mounting rods, lower ends of the suspension rods are hinged with lower ends of the mounting rods through levers, a water collection basin is arranged below the cover, the water collection basin is arranged on a supporting ring, the edge of the supporting ring is uniformly provided with poles matched with the mounting rods in quantity, ends of the poles are hinged with tail ends of the levers through connection rods, and a bottom surface of the water collection basin is distributed with water holes. Thedevice is advantaged in that the size of drainage gaps can be automatically adjusted according to the road area water condition, that the road area water is discharged into a sewer in time is guaranteed, opening the manhole cover is not needed, pedestrians are effectively prevented from falling into well holes, safety is greatly improved, and functions are more powerful.

A mobile wireless charging system matched with an intelligent electromobile is characterized by comprising wireless charging emission coils, a wireless charging power supply circuit, a solenoid valve and a vehicle-mounted wireless induction coil, wherein the wireless charging power supply circuit and the solenoid valve are connected with the wireless charging emission coils, the wireless charging power supply circuit is connected with an expressway road network power supply to supply power to the wireless charging emission coils, the vehicle-mounted wireless induction coil is used for receiving electromagnetic waves emitted from the wireless charging emission coils and is connected with a receiving circuit, the receiving circuit is connected with an energy storage device of the electromobile, and the wireless charging emission coils are buried under a road surface of an expressway at intervals. The mobile wireless charging system is designed based on an intelligent car, and is reliable and safe in power taking and high in automation; and a wireless charging technology is employed, the mobile wireless charging system is safe and reliable, the travelling of the car is not affected even the car is charged during running, the intelligence and orderness of running of the intelligent electromobile are improved, and the road safety is improved.

The invention discloses a diesel and methanol dual-fuel system of an internal combustion locomotive engine and a method. The dual-fuel system comprises a diesel engine and further comprises a methanolsupplying system, a methanol sprayer assembly and a methanol spraying control system; the methanol supplying system comprises a methanol tank, a methanol filter, a methanol pump, a methanol flowmeter, a distribution box and a methanol pressure-limiting valve, and the methanol tank is sequentially connected with the methanol pump, the methanol flowmeter and the distribution box through pipelines;the distribution box comprises an input end and a plurality of output ends, and each output end is sequentially connected with the methanol pressure-limiting valve and the methanol sprayer assembly through pipelines; the methanol sprayer assembly comprises a methanol rail, a methanol rail pressing plate, a methanol spraying nozzle and a gas inlet bent pipe; and the methanol spraying control systemcomprises a methanol electronic control unit, a control wire harness, an upper computer, a rotating speed sensor, a coolant temperature sensor, a throttle position sensor, a methanol liquid level meter and a fault alarm device.

A traffic warning device for a vehicle comprises a lifting sliding cavity located in the lower end wall of an automobile car body; a hydraulic cylinder is fixedly arranged in the upper end wall of thelifting sliding cavity; a hydraulic push rod capable of stretching out and retracting is installed at the lower end of the hydraulic cylinder in a power manner; a lifting block is arranged in the lifting sliding cavity in a sliding manner; the lower end face of the lifting block can be in contact with the ground; a cavity is formed in the upper end wall of the lifting block; the lower end of thehydraulic push rod is fixedly arranged in the lower end wall of the cavity; a ratchet wheel outer wheel is arranged in the right end wall of the lifting block; and the lower side of the ratchet wheelouter wheel is provided with a storing cavity. The traffic warning device for the vehicle is used for supplementing energy for a warning trolley when a vehicle is normal due to the energy storing principle of a spring, and the trolley can be released after the vehicle stops when a traffic accident happens or the vehicle goes wrong; and meanwhile, a warning mark is automatically unfolded, personnelare not needed to get off, a traffic accident is avoided, and the safety of the personnel is guaranteed.

The invention discloses a driving behavior safety evaluation method based on driving fingerprint. The method comprises the steps of S1, collecting driving behavior data; S2, calculating a characteristic index representing individual differential driving behavior according to driving behavior data; S3, selecting a training set, inputting that characteristic index into a machine learning classify for training, and calculating a driving fingerprint through the machine learning classifier; S4, taking the driving behavior data to be evaluated as a test set, and comparing the difference degree between the driving behavior data and the driving fingerprint under the normal driving state; S5, calculating the weight of the importance degree of each parameter in the driving fingerprint to the drivingsafety; S6, the parameters of the difference degree were calculated by the principal component analysis method, and the safety of driving behavior was evaluated by the factor scores. The method of the invention can fully consider the influence of individual difference factors and obtain accurate, comprehensive and reliable driver safety evaluation results.

The invention relates to an apparatus installed on a vehicle capable of obtaining control apparatus and method using brain wave, capable of using the brain wave to control electronic device such as car navigation apparatus, robot arm, and an electronic wheel chair combined with a mechanical device. The apparatus at least comprises: a brain wave sensing detection starting unit, a graphic display unit, a brain wave intensity display unit, and a brain wave detection unit. At first, a press button mounted on the steering wheel or in the vehicle of starting the brain wave detection is pressed, a plurality of graphices or characters reparesting options are displayed. Predetermined method is used to think and select. The option is a classification having six ones each grade, the operation is executed many times periodically. Brain wave electrodes are arranged near a head rest or at a position that a member is hanged from roof. The detected brain wave is amplified or processed, then is stored, the control signal is sent in wired mode or wireless mode.

The invention discloses a damping device of solar vehicle body cooling equipment. The damping device comprises a mounting plate and a bottom plate, wherein two ends of the bottom plate are respectively provided with a stand column, the side walls of the stand columns are respectively welded with a cross beam, a buffer device is arranged on the cross beam; the buffer device comprises a first fixing block, a spring and a second fixing block; the first fixing block is welded at the top end of the spring, the second fixing block is welded at the other end of the spring, the mounting plate is connected with the cross beam by the buffer device, and two limiting plates and a buffering rubber pad are arranged on the side wall of the upper side of the mounting plate. The damping device of the solar vehicle body cooling equipment is provided with a three-level buffering and damping mechanism which is formed by the buffering rubber pad, the buffer device arranged at the bottom of the cross beam and the mounting plate and a buffer device arranged in a guide rail, thus effectively reducing acting force born by a solar power supply device and cooling equipment in the vehicle body.

The invention discloses a high voltage power transmission and distribution cable road-crossing machine tool and a cable erecting method. The high voltage power transmission and distribution cable road-crossing machine tool includes a stay wire tension device, a laying tension mechanism, a quick tensioning mechanism, a lead ejection device, a cable pulling rope and at least two wire erecting brackets, wherein a lead and the cable pulling rope are sequentially connected with the cable through a mouse-type wire connector; each wire erecting bracket includes a base, an upright and a wire erecting cross rod. According to the invention, compared with the prior art that the tool needs at least 5 persons for cable erecting, while the machine tool provided by the invention only needs 2 operators and the time consumed is only one fourth of the time consumed in the prior art, more importantly, the lead, the pulling rope and the cable are suspended all the time, thereby not influencing road transportation at all.

The invention relates to an efficient energy-saving and emission-reduction sub-system of an automobile and belongs to the technical field of machine manufacturing. By utilizing a method of recycling waste heat of tail gas of an automobile engine and controlling external circulation flow of a cooling liquid, the temperature of a system is raised to about 84-87 DEG C as far as possible and is kept; and by controlling the flow of the cooling liquid flowing through an air heat exchanger, the temperature of air entering the engine is raised and regulated to 56-75 DEG C. When the engine is in the two temperature states, fuel oil molecules are in single molecule states and can be sufficiently mixed with oxygen molecules in the air to be sufficiently combusted, thus achieving energy saving and emission reduction. When system temperature reaches 86 DEG C, a liquid pump stops rotation to stop recycling of the waste heat; and a proportional valve distributes the cooling liquid to the air heat exchanger to raise and regulate temperature of the air. When extra requirement for power is available, temperature regulation on air is stopped, and when throttle percentage reaches more than 60%, pressurizing is performed and the air is quickly cooled by utilizing cold air. In warming-up at idle speed, air-fuel ratio is gradually increased to 15.6-15.9 from 14.7 in three times.

The invention relates to a storage-style trolley stopping device and belongs to the mechanical solid parking equipment. The storage-style trolley stopping device is characterized in that a trolley stopping device is arranged on a sweeping board, and comprises a stopping plate (10), a fixed seat (5), and a transmission device. A balancing weight (11) is welded at one end of the stopping plate (10), a steel plate (13) is welded at the other end thereof at an angle of 75 DEG, the inclined steel plate (13) is kept vertical by the balancing weight, and the middle part of the stopping plate is a rotatable fixed ear plate. The lower part of the fixed seat is connected with a transmission shaft through a spline, the upper part thereof is connected with the stopping plate (10) through a pin (8), two positioning stoppers are respectively welded on two sides of the fixed seat, and a torque spring keeps the fixed seat and the stopping plate in the vertical direction all along. The transmission device consists essentially of the transmission shaft (3), a fixed support (2) and a pedal (1), wherein the front end of the transmission shaft (3) is connected with the pedal (1), the rear end thereof is connected with the fixed seat (5), and the transmission device is provided with the torque spring, and is connected with the sweeping board. The device has the advantages of novel, unique and simple structure, skillful design, easy operation, reliable performance, convenient installation, examination and maintenance and greatly reduced cost.

The invention discloses navigation system and method employing a front window projection of a car capable of increasing the display area of a screen of an embedded device and being convenient to watch the map by a driver. The technical scheme is that the system comprises a navigation terminal, a projection device and a projection screen, wherein a navigation module and a projection control module are arranged inside the navigation terminal; the projection control module controls the projection device; the projection device is connected with the projection control module of the navigation terminal, and projects by a set light wave band, and the projection screen is arranged on a front window of the car, and receives an image projected by the projection device.

The invention provides a horizontally movable jiffy stand, belonging to the parking equipment technical field. The technical proposal aims to ensure that the exit and the entrance of the vehicles on the higher floor do not affect the parking of the lower floor in two-story jiffy stand. The jiffy stand of the invention consists of a horizontally movable pedestal, lateral fixing plates, a crank arm, and a splint. The horizontally movable pedestal is mounted on the ground to perform delivery of vehicles on the ground floor; the lateral fixing plates, the crank arm, and the splint are connected with each other to perform delivery of vehicles on the higher floor via the swing of the crank arm without affecting the parking of the vehicles on the lower floor. The technical proposal increase the number of vehicles parked without increasing the area of the parking lot, and meets demands of different parking conditions. The exit and the entrance of the higher vehicle and the lower vehicle are performed by two different systems without mutual influence and limitation. The product has simple overall structure and high reliability, and is worthy to be popularized.

The invention relates to a method and device for customizing and automatically playing a radio program. A radio assistant controls a playing terminal to customize and play the program according to a user's personal favor, and automatically controls a radio of a car-mounted terminal or a handset to switch program channels at the appointed time. Compared with the prior art, the method and device can automatically switch programs. As a result, a user can listen a program customized by himself / herself on time without operating the radio during driving. The device is convenient and reliable, and is good in safety without affecting normal driving. In an interactive window, an option of calling a presenter may be further arranged, and when a user click the option, a function of calling the presenter is realized. According to the device, the function of calling the presenter by one button during the driving process is realized, and driving is not affected.

The invention discloses a reinforced anti-puncture run-flat composite tire which comprises an outer tire, an airtight inner rubber layer, an airtight rubber spacing, a reinforced foamed solid inner tire, an annular rubber pipe and an independent air-filled inner tire, wherein the airtight inner rubber layer is adhered to the inner wall of the outer tire; the airtight rubber spacing is transversely arranged in the middle of the airtight inner rubber layer; the space between the upper part of the airtight rubber spacing and the lower part of a hub is an air chamber; the independent air-filled inner tire is arranged in the air chamber; the reinforced foamed solid inner tire is arranged below the airtight rubber spacing; the annular rubber pipe is longitudinally arranged in the reinforced foamed solid inner tire; the reinforced foamed solid inner tire and the annular rubber pipe are filled with elastic foam materials. Compared with the prior art, the reinforced anti-puncture anti-explosion composite tire is simple in structure, easy to process, anti-puncture and run-flat; a tire after air leakage is the same as a tire with reduced air, so that normal driving of vehicles is completely not influenced; the composite tire is safe and durable, and has very good promotion and application values.

The invention relates to the vehicle telephone communication technical field, particularly to a wireless earphone system for enhancing the privacy of vehicular communication. The vehicle earphone radio frequency wireless system comprises a vehicle terminal, wireless earphones and a switch; an audio output end of the vehicle terminal is connected with an input end of a radio frequency transmitter when the switch is used in the wireless earphones; a voice signal is modulated to be sent to the wireless earphones through the radio frequency transmitter; the audio output end of the vehicle terminal is connected with an internal speaker when the switch is not used in the wireless earphones. The vehicle earphone radio frequency wireless system is simple and easy to implement, the privacy of the vehicular communication can be effectively improved, and the safety of the driving of a vehicle owner is improved due to the fact that the driving of the vehicle owner is not affected.

The invention relates to a railless electric vehicle and a roadway power supply contact line thereof, belonging to the field of communication and transportation. The body of the railless electric vehicle is provided with an electric connector which can acquire electricity from a roadside electric network, the electric connector is positioned at the lower part of the vehicle chassis, and the lower surface of a high-voltage slide block 3 and the lower surface of a low-voltage slide block 20 of the electric connector are parallel to the roadway 1. The contact line is formed by the arranging and connecting multiple contact units, wherein one contact unit at least comprises a contact tip 19 which is only approximately 25 millimeters higher than the roadway 1, an elastic seal cover 34, a seal chamber 2, a contact tip holder 38 and a spring 40; and except the contact tip 19, other parts of the contact line are buried under the roadway 1. The contact line does not occupy the road space, does not influence other vehicles running on the roadway, can generate electricity only when the railless electric vehicle runs over, can not be damaged by weights of vehicles and people, and is dustproof and waterproof. Besides, the contact line is extremely safe and is low in cost, thereby being applicable to vehicles of various sizes and urban and rural high-level roads. The product is hopefully automatically produced and installed, has the effects of energy saving, emission reduction and cost saving, and can bring in enormous benefits, thereby being the ideal feasible basic scheme for vehicles directly powered by the electric network.

The present invention relates to a hydraulic stereo parking table. It is characterized by that every corner position of its stereo car frame is supported by a hydraulic cylinder, the plunger rod of its hydraulic cylinder is hinge-jointed with upright column of stereo car frame or car-bearing table, one set of hydraulic system is shared by all the hydraulic cylinders, and said stereo car frame is double-layer or three-layer stereo car frame, and the adoption of hydraulic cylinders can directly lift the stereo car frame to make vertical lifting and falling operation.

The invention belongs to a vehicle air purifier, which is composed of a blower fan; and a first structural member component is formed by a pedestal, a base plate, a ring cover loop and the blower fan. A second structural member component is formed by a composite filter component, and a third structural member component is formed by a top cover and a primary filter. An upper transverse plane of the first structural member component and the upper transverse plane of the second structural member component are flattened, a top sealed cover at the lower transverse plane of the periphery of the top cover is capable of capping the upper transverse plane of the first structural member component and the second structural member component through magnetic actuation. The upper transverse plane of the ring cover loop and the upper transverse plane of the blower fan are positioned at same plane; a filter material is folded to a sawtooth annular body by connecting end to end, and the front transverse plane and the rear transverse plane of the filter material are a front ventilation supporting piece and a rear ventilation supporting piece, and an intermediate filter material between the front ventilation supporting piece and the rear ventilation supporting piece is an active carbon mixing adsorption layer. The vehicle air purifier has the advantages of small volume, reasonable filter design, high purifying efficiency, mute performance, and convenient connection, the replacing of the filter material saves labor and saves the time, ventilation is smooth, purifying efficiency is high, security is good, and usage effect is good.

The invention discloses a shading tool for vehicle driving. The shading tool comprises a motor, an electric lifting device and a shading plate; the motor drives the electric lifting device; the electric lifting device is connected with the shading plate; the shading tool is characterized in that: the electric lifting device comprises multiple sections of casings which are sleeved into each other; the innermost layer of each casing is provided with a top pipe; and the tail end of each top pipe is connected with the shading plate through a connection device. Compared with the prior art, the shading tool has the characteristics of wide application range, simple structure, low cost and convenience in popularization.

The invention discloses a rigid pavement deflection test device and a test method thereof. The device comprises a Benkleman beam, a probe arranged at the front end of the Benkleman beam, a support arranged in the middle of the Benkleman beam, a height adjustable main tripod for fixing the support, a dial indicator arranged at the rear end of the Benkleman beam, an instrument stand for fixing the dial indicator, and a height adjustable auxiliary tripod for fixing the instrument stand. The method comprises the following steps: erecting the main tripod and the auxiliary tripod on places outside an earth shoulder or roadbed outside a rigid pavement slab, enabling the Benkleman beam to extend into a rigid pavement, and placing the probe at the front end of the Benkleman beam on a pavement test point; then regulating the main tripod, the auxiliary tripod and the probe and keeping the Benkleman beam horizontal; finally, performing static load on the rigid pavement by a test vehicle, or performing dynamic load on the test point at a certain speed, reading the dial indicator to obtain the static or dynamic rebound deflection value of the rigid pavement, and drawing a rigid pavement deflection basin at the same time.

The invention discloses an improved logistics goods road conveying device. The improved logistics goods road conveying device comprises a container cabinet for loading goods and a truck frame for conveying the container cabinet. Protection devices are symmetrically arranged in the truck frame in the front-back direction and comprise first telescopic grooves formed in the truck frame and provided with downward openings. Lifting blocks are vertically slidably mounted in the first telescopic grooves, friction plates are fixedly arranged on the bottom end faces of the lifting blocks, and first limiting grooves extending vertically are symmetrically formed in the left side walls and the right side walls of the first telescopic grooves. First limiting blocks are slidably mounted in the first limiting grooves, the first limiting blocks and the lifting blocks are fixedly connected, and second telescopic grooves communicating in the left-right direction are formed in the lifting blocks. Telescopic rods symmetrically arranged in the left-right direction are slidably mounted in the second telescopic grooves, and first permanent magnets are fixedly arranged at the inner side ends of the telescopic rods.

The invention discloses a dustproof electronic instrument panel, which comprises a shell, wherein the shell is provided with an electronic instrument; the top end of the electronic instrument is provided with a guide box; a telescopic rod is connected in the guide box; a guide plate is arranged in the guide box; one end of the guide plate is connected with the telescopic rod, and the other end ofthe guide box is connected with a cleaning plate through a bolt; one side of the guide box is provided with a notch; a water storage bottle is arranged in the notch; the lower end of the water storagebottle is connected with a water delivery pipe; a micro water pump is arranged on the water delivery pipe; one end of the water delivery pipe is in threaded connection with a nozzle; the bottom end of the electronic instrument is provided with a guide groove; the dustproof electronic instrument panel has the advantages that the screen of the electronic instrument is shielded by utilizing the guide plate when the automobile flameout, dust is prevented from falling on the electronic instrument; meanwhile, the cleaning fluff is combined with the water pump for use, a cleaning liquid is sprayed on the screen of the electronic instrument, and the screen of the electronic instrument is cleaned by the cleaning fluff.

The invention provides a pedestrian protection airbag device and a vehicle, which relates to the technical field of the protection airbag on the automobile. The pedestrian protection airbag device comprises an airbag accommodating tube, a protection airbag, a gas generator, a detection element and a control element; The protective airbag is arranged in the airbag accommodating pipe, one side of the airbag accommodating pipe is arranged on the A-pillar of the automobile, and the other side is arranged on the automobile wing; The protective airbag is connected with a gas generator, the gas generator is connected with a control element, and the detection element is connected with the control element. When a collision occurs, the detection element transmits collision information to the controlelement, which controls the start of the gas generator to inflate the protective airbag so that the protective airbag is ejected from the airbag accommodating tube and the position of the A-pillar and the engine compartment rail of the vehicle can be shielded. An automobile pedestrian protection airbag device is provided. The invention solves the problems of complex structure, high cost and easyblocking of sight of the airbag device in the prior art.

The invention relates to a new energy automobile with a flood prevention function, and the automobile comprises an automobile body, wheels, a battery and a power system, wherein the battery is positioned in the automobile body, the battery is mounted in a waterproof device, and the waterproof device is used for preventing water from contacting with the battery; a lifting device and a floating device are further arranged at the bottom of the automobile body, the lifting device is used for lifting the automobile, the floating device is used for enabling the automobile to float on the water surface, and the automobile further comprises a controller used for controlling the lifting device and the floating device. The automobile has the advantages that when the water level rises due to urban inland inundation or flood, the lifting device can automatically lift the automobile, the waterproof device can prevent water from making contact with the battery, and when the water potential is very large, the floating device can enable the automobile to float on the water surface.

The invention discloses a bridge expansion joint device with multiple water stop structures. The bridge expansion joint device comprises a first anchor plate and a second anchor plate, wherein the first anchor plate and the second anchor plate are located on the two sides of an expansion joint. First F-type steel is arranged on the first anchor plate, second F-type steel is arranged on the second anchor plate, first F-type adhesive tape and second F-type adhesive tape are arranged in a groove of the first F-type steel and a groove of the second F-type steel respectively, the first anchor plate and the second anchor plate are welded with a first anchor bar and a second anchor bar respectively, a cover plate supporting block and third F-type steel are arranged on the upper portion of the second anchor plate, and third F-type adhesive tape is arranged on the third F-type steel. A cover plate installing plate is arranged on the top of the first anchor plate, a waterproof cover plate is installed on an installing cover plate through a bolt connecting assembly, a rubber pad is arranged between the installing cover plate and the waterproof cover plate, a pressed plate is arranged on the waterproof cover plate, and the cover plate installing plate and a cover plate supporting plate are respectively of a step type. The bridge expansion joint device with the multiple water stop structures has the advantages of being simple in structure, convenient to construct, good in waterproof effect, and capable of avoiding leakage or straight drainage towards the outside of a bridge in the using process.

The invention discloses an intelligent electric automobile charging system with automatic power supplying and power-off functions. The intelligent electric automobile charging system is characterized by comprising charging power-supplying guide rails, an expressway network power source, electromagnetic valves, a power gaining brush head, an infrared receiving module and an infrared emitting module; the charging power-supplying guide rails are arranged on the two sides of a median strip and arranged continuously in a sectioned mode, adjacent sections are insulated with each other, and the charging power-supplying guide rails are connected to the expressway network power source in parallel through the electromagnetic valves; the power gaining brush head is arranged at the outer end of a power gaining arm of an electric automobile and slides or rolls on one of the charging power-supplying guide rails to gain power energy; the infrared emitting module is arranged in the automobile; the infrared receiving module is arranged on the median strip for receiving an infrared control signal emitted by the infrared emitting module and connected with the electromagnetic valves; and anti-collision columns are arranged on the inner side of the median strip for preventing the situation that the automobile collides to damage the charging power-supplying guide rails.