278results about How to "Improve the anti-collision effect" patented technology

The invention discloses an automobile longitudinal collision mitigating system and a control method, which are used for avoiding automobile collision or lightening damages caused by the automobile collision to the utmost extent; the automobile longitudinal collision mitigating system comprises a front ranging radar and a rear ranging radar, a collision-prevention control unit, a speed control system and an alarming unit; the collision-prevention control unit is used for calculating relative speed of the automobile in relation with front and rear automobiles according to distance data provided by a radar ranging system, judging whether the collision occurs and the possible occurrence time of collision, sending corresponding instructions to actuating mechanisms according to preset programs, and controlling acceleration or deceleration braking of the automobile, so that the automobile collision is avoided or the damages resulting from the automobile collision are lightened to the utmost extent.

The invention provides an anti-collision control system and a control method thereof and the control system and control method are used for the anti-collision of the vehicle. The anti-collision control system comprises a sensor, a controller and a warning device, wherein the sensor is used to detect the distance between a vehicle and an obstacle; the controller is electrically connected with the sensor and used to obtain a warning vehicle distance according to the current speed of the vehicle; the warning device is electrically connected with the controller; if the distance is less than the warning vehicle distance, the controller controls the warning device to warn; and if the distance is less than the brake distance, the vehicle brakes automatically. The anti-collision control system provided by the invention can judge the warning vehicle distance or brake distance according to the current vehicle speed, thus the judgment result can be more accurate and the anti-collision method can be more intelligent.

The invention discloses an omni-directional anti-collision device for an automated guided vehicle (AGV) and the AGV. The omni-directional anti-collision device for the AGV comprises an anti-collision stopping rod, a buffer spring, a pendulous guide rod, a linear bearing and a pendulous supporting member. One end of the buffer spring is fixed on the anti-collision stopping rod, the other end of the buffer spring butts against and is fixed on a base plate of a vehicle body, one end of the pendulous guide rod is movably connected with the anti-collision stopping rod through the pendulous supporting member, the linear bearing is fixed on the base plate of the vehicle body, the linear bearing is connected onto the pendulous guide rod in sleeved mode, and the pendulous guide rod moves along the axial direction of the linear bearing when the buffer spring is compressed due to impact force. The omni-directional anti-collision device can prevent collision when the omni-directional anti-collision device is subjected to external force from any direction of the front, the rear, the left and the right. When the AGV is subjected to collision force, the AGV can have good stability and anti-collision effect under the cooperation of the anti-collision stopping rod, the buffer spring, the pendulous guide rod, the linear bearing and the pendulous supporting member.

The invention discloses novel hydrogen storage equipment with high safety. The equipment comprises a base, a protective outer tank and a hydrogen storage tank; the protective outer tank is fixed to the top of the base. A mounting base is arranged in the protective outer tank; a mounting groove is formed in the mounting base; the hydrogen storage tank is fixed in the mounting groove; a hydraulic lifting cylinder is mounted on the bottom wall of an inner cavity of the protective outer tank; and the hydraulic lifting cylinder is connected with the mounting base through a hydraulic rod, a tank cover is hinged to the top side of the protective outer tank, two arc-shaped grooves are symmetrically formed in the two sides of the outer wall of the protective outer tank, arc-shaped anti-collision plates are arranged in the two arc-shaped grooves correspondingly, and the arc-shaped anti-collision plates are connected with the arc-shaped grooves through buffer springs. The equipment is simple in structure and convenient to use, the hydrogen storage tank is arranged in the protective outer tank, the hydrogen storage tank can be prevented from being exposed in the environment, dust is preventedfrom being attached to the surface of the hydrogen storage tank to influence cleaning of the hydrogen storage tank, the hydrogen storage tank can be protected against collision and damage of foreign objects, and use safety is improved.

The invention discloses a community intelligent security and protection monitoring device based on Internet of Things, which comprises a base, wherein a storage battery is arranged inside the base; astand column is arranged in the middle of the upper surface of the base; a second connection rod is arranged at the top end of the stand column; a camera is arranged at one end of the second connection rod far away from the stand column; a first connection rod is arranged on one side of the second connection rod; an illuminating lamp is arranged at the bottom end of the first connection rod; a solar panel is arranged above the stand column; a cleaning mechanism is arranged above the first connection rod. A cleaning mechanism is arranged on the community intelligent security and protection monitoring device; a user can wash the dust accumulated on the self-cleaning brush and the camera through the cleaning mechanism, thereby removing dust from the self-cleaning brush and the camera, so thatthe community intelligent security and protection monitoring device has better self-cleaning effect; secondly, a water storage funnel in the cleaning mechanism can protect the illuminating lamp and prevent the illuminating lamp from being eroded by rain water.

The invention discloses an omni-directional anti-collision device for an automated guided vehicle (AGV) and the AGV. The omni-directional anti-collision device for the AGV comprises an anti-collision stopping rod, a buffer spring, a pendulous guide rod, a linear bearing and a pendulous supporting member. One end of the buffer spring is fixed on the anti-collision stopping rod, the other end of the buffer spring butts against and is fixed on a base plate of a vehicle body, one end of the pendulous guide rod is movably connected with the anti-collision stopping rod through the pendulous supporting member, the linear bearing is fixed on the base plate of the vehicle body, the linear bearing is connected onto the pendulous guide rod in sleeved mode, and the pendulous guide rod moves along the axial direction of the linear bearing when the buffer spring is compressed due to impact force. The omni-directional anti-collision device can prevent collision when the omni-directional anti-collision device is subjected to external force from any direction of the front, the rear, the left and the right. When the AGV is subjected to collision force, the AGV can have good stability and anti-collision effect under the cooperation of the anti-collision stopping rod, the buffer spring, the pendulous guide rod, the linear bearing and the pendulous supporting member.

The invention relates to the technical field of paperboard processing, in particular to a production process of a double-faced waterproof corrugated paperboard. The production process comprises the steps that firstly, glue is prepared; secondly, body paper is preheated, and the preheated body paper is attached to a single facer for production after passing through a paper guide roller from a paper support; thirdly, single-faced paperboards produced through the single facer in the second step are conveyed to cross a bridge, and then preheated; fourthly, the single-faced paperboards in the third step are sequentially pasted with glue A and glue B, and bonded to form the corrugated paperboard; and fifthly, the corrugated paperboard bonded in the fourth step is heated and dried, and then the surfaces of the two sides of the heated and dried corrugated paperboard are coated with super hydrophobic and oileophobic interface coating. The bonding degree of the glue used in the production process of the double-faced waterproof corrugated paperboard is high, the waterproof and impact-proof performance is good, and the excellent-performance glue is adopted in cooperation of the super hydrophobic and oileophobic interface coating, so that the corrugated paperboard produced through the process is good in waterproof performance and high in bonding strength.

The invention discloses an automobile anti-collision system. The automobile anti-collision system comprises an energy absorbing box connected with an automobile anti-collision beam and a front longitudinal beam in the front-back direction. The energy absorbing box comprises a main body, pushing rods, first pressing plates, first springs, a second pressing plate, a connecting seat, connecting rods,a sliding rail, sliding blocks, second springs and pistons. First partition cavities are formed in the end, close to the anti-collision beam, of the main body in an up-down symmetry mode. The first pressing plates are mounted in the first partition cavities through the first springs. The anti-collision system further comprises a main control module, a sensor detection module, a radio frequency module, a GPS positioning module, a display module, a pre-warning module and an execution module. The automobile anti-collision system integrates an energy absorbing box passive anti-collision mechanismwith the high energy absorption rate and the good anti-collision effect and active anti-collision control, automobile collision can be effectively prevented, the loss caused by automobile collision can be reduced to a great extent, the anti-collision effect is remarkable, thus the travelling safety is ensured, and practicability is high.

The invention discloses a shower room sliding door structure which aims at solving the problems that an existing normally-used shower room glass sliding door is bad in anti-collision effect in the sliding process, and stains are prone to being left on a supporting crossbeam on the lower portion of the glass sliding door. The shower room sliding door structure comprises an upper crossbeam, a lowercrossbeam, two sliding doors and two vertical beams connected between the two ends of the upper crossbeam and the lower crossbeam. The opposite faces of the two vertical beams are each provided with aplurality of anti-collision seats, and supporting cushions and reset springs are arranged in buffer through holes in the bottoms of the anti-collision seats. The reset springs abut against the supporting cushions, and each supporting cushion is hinged to two symmetrically-arranged connecting rods. Piston cylinders are arranged in the positions, corresponding to the connecting rods, in the anti-collision seats, and pushing pistons are mounted at the opening ends of the piston cylinders. The connecting rods are hinged to the pushing pistons, and air bags are mounted in the buffer through holesin the two side portions of the anti-collision seats. The closed ends of the piston cylinders communicate with the air bags through pipelines, and clearing brushes are connected to the two sides of the lower ends of the sliding doors. The clearing brushes are arranged between the lower ends of the sliding doors and the upper surface of the lower crossbeam and attached to the upper surface of the lower crossbeam.

The invention discloses a control method of a bridge anti-collision device. The bridge anti-collision device comprises a bridge terminal and ship terminals, wherein the bridge terminal is arranged on a bridge, and the ship terminals are arranged on ships, the bridge terminal comprises a first wireless transceiver, a first microprocessor, a first GPS position finder, a first storage and a plurality of directive antennas, wherein the directive antennas are electrically connected with the first wireless transceiver respectively, the first microprocessor is connected with the first wireless transceiver, the first GPS position finder and the first storage, and the ship terminals comprise omni-directional antennas, second wireless transceivers, second GPS position finders, second storages, display screens, second microprocessors and alarms. The bridge anti-collision device has the advantages that early alarms can be given to the ships near the bridge in advance, alarming data information accuracy and the anti-collision effect are good, and traffic orders on the bridge and normal life of people around the bridge can not be disturbed.

The invention is an automobile crashworthy security protection equipment, there is the joint mat which is fixed on the bottom of the seat assembly, and be hinge jointed with the body. There is a lock equipment which is used to make the joint mat and the pothook connect together or detach in the cavum on the bottom of the seat assembly, and another support equipment which is connected between the joint mat and the body and can push the joint mat and drive the seat assembly uptilt, open from the flex status and drag and support the joint mat which has been reached a special angle when the body is crushed. The lock equipment has cantilever and fluctuate telescopic arm, the dial body has cantilever and the dial arm which can limit lock then set the joint mat in locking status or make the lock equipment disengage limit and make the joint mat unlock, with the turn of the clevis pin with head; the dial equipment is connected to the sensor equipment which can lead the joint mat drive the seat uptilt and help people out of the danger area. The invention make the driver seat and / or the copilot seat lean back wholly, and the crashworthy effect is good.

The invention discloses a water surface cleaning robot, and belongs to the technical field of water surface cleaning. According to an existing anti-collision structure, most of collision force can betransmitted to a ship body through anti-collision wheels, so that the anti-collision wheels and the ship body are damaged, the anti-collision effect is poor, and the service life of the anti-collisionwheels and the service life of the ship body are affected. Furthermore, the garbage collected by the existing scheme is easy to scatter from the opening, and the storage effect is poor. The anti-collision structure with at least two anti-collision wheels is included, the collision force can be effectively decomposed, the anti-collision effect is good, and then the service life of the anti-collision wheels and the service life of the machine body can be effectively prolonged; meanwhile, the machine body is provided with the vertically-through containing cavity, the containing part can be placed in the containing cavity from top to bottom, and a user can disassemble and assemble the containing part conveniently; furthermore, existing water surface garbage enters from an opening in the frontend of the storage part instead of an opening in the upper end of the storage part, collected garbage can be effectively prevented from scattering from the opening in the front end, and the storage effect is good.

The invention provides a composite-material energy-dissipation fender which comprises a shell and an energy-dissipation filling body wrapped inside the shell. The energy-dissipation filling body comprises energy-dissipation materials and a plurality of energy-dissipation ribs, the energy-dissipation ribs are distributed inside the energy-dissipation materials and / or between the energy-dissipation materials and the shell, and the energy-dissipation ribs are connected with the shell into a whole. The energy-dissipation ribs of the composite-material energy-dissipation fender form a longitudinally-transversely staggered net structure, the high shearing strength and the certain elastic deformation buffering capacity are achieved, the shell can be protected from large shearing deformation, and the composite-material energy-dissipation fender is good in overall collision avoidance effect, low in manufacturing cost, long in service life and convenient to maintain and repair.

The invention discloses an anti-collision structure for a battery box body. The anti-collision structure comprises an anti-collision base consisting of a rubber elastomer and an anti-collision elasticlayer consisting of a PVC (Polyvinylchloride) soft crystal board, wherein the anti-collision base is of a cylindrical structure; an elastic cavity is formed inside the anti-collision base; the elastic cavity is of a cylindrical structure; springs are arranged in the elastic cavity; the number of the springs is two; the two springs are symmetrically arranged on two side inside the elastic cavity;the anti-collision elastic layer is of a semispherical structure and is filled with rubber particles. The anti-collision structure has the advantages of simple structure and good elasticity; the anti-collision structure can realize a good anti-collision effect in the use process of an automobile and meets the demands of a modern automobile industry.

A regeneration control device (1) for a vehicle includes: a motor control unit (4) that drives a motor generator (3) connected to running wheels (2) of the vehicle at the time of decreasing a vehicle speed, so as to generate electricity, performing regenerative braking; a paddle switch (12) that performs increasing / decreasing operation on a regeneration amount Tr by the motor generator (3); and a main control unit (20) that performs increasing / decreasing control on the regeneration amount Tr continuously in response to the increasing / decreasing operation by the paddle switch (12), wherein the main control unit (20) sets a regeneration amount increasing rate Ru in an increasing operation of the regeneration amount Tr by operation of an UP switch of the paddle switch (12) to be higher than a regeneration amount decreasing rate Rd in a decreasing operation of the regeneration amount Tr by operation of a DOWN switch (14).

The invention discloses a blood heat preservation and preservation device, which comprises a blood heat preservation and preservation device body, the outer casing of the blood heat preservation and preservation device body is wrapped with a rubber protective cover; the blood heat preservation and preservation device body is divided into a low temperature preservation box body and an infusion return Warming box; the low temperature preservation box and the infusion return temperature box are respectively provided with a cooling chamber and a heating chamber; the upper inner wall of the cooling chamber is threaded with a refrigerator; the upper inner wall of the heating chamber is threaded There is an electric heater; the bottoms of the low-temperature preservation box and the infusion return temperature box are threadedly connected with a storage tray; the central threads of the storage trays on both sides are connected with a temperature sensor. The invention has a simple structure and is easy to install. The structure is stable, the service life is long, it is easy to carry, and the anti-collision effect is good. Two cavities are used to store the blood at low temperature and warm it up quickly, so as to win the rescue time for the patient, reduce the injury to the patient, and reduce the allergic reaction.

The invention discloses a robot anti-collision device. The anti-collision device comprises a box body, wherein first springs are fixedly connected to the bottoms of two sides of an inner cavity of thebox body; moving plates are fixedly connected to the opposite sides of the two first springs, and first sliders are fixedly connected to the bottoms of the moving plates; and first sliding grooves are formed in both sides of the bottom of the inner cavity of the box body, and the inner walls of the first sliding grooves are slidably connected to the bottoms of the first sliders. The robot anti-collision device solves the problem of poor anti-collision effect of an existing robot anti-collision device by arranging the first springs, the moving plates, the first sliders, the first sliding grooves, tension springs, a movable rod, a fixed block and a movable plate, and the robot anti-collision device has the advantage of good anti-collision effect, does not damage internal parts of robots inthe collision process, improves the service life of the robots, reduces the frequency of replacing robot parts by users, is convenient for users to use, and is worthy of popularization and use.

The invention discloses an anti-collision beam and an anti-collision device with the anti-collision beam, and relates to the field of bridge protection. The anti-collision beam comprises a shell which is of a hollow structure and in a V shape, a plurality of separated cabins are arranged inside the shell, and the separated cabins are filled with elastic energy dissipation structures. Each elastic energy dissipation structure comprises a lattice box which is of a sealed structure and filled with elastic materials. When the anti-collision beam is impacted by a ship, the ship can slide along the surface of the anti-collision beam through the V-shaped structure arrangement, and kinetic energy exchange between the ship and a pier is reduced; each separated cabin is filled with the elastic energy dissipation structure which is good in elasticoplastic deformation capacity, and therefore part of impact energy can be absorbed and dissipated while impact time is effectively prolonged. The anti-collision beam is stable in structure, not prone to damage, reliable in anti-collision function, long in service life and suitable for the ocean environment with large wave acting force.

The invention relates to an artificial intelligence robot. The artificial intelligence robot comprises a robot body. An inner cavity of the robot body is divided into an upper part and a lower part bya partition plate transversely and fixedly connected to the middle of the inner cavity of the robot body. A control chamber is arranged in the middle of the top end of the partition plate. A DEF-181lifting controller, a CM-6 robot controller and a power supply are sequentially arranged in the control chamber. A lifting cylinder and a monitoring chamber are symmetrically mounted on the two sidesof the control chamber, and the monitoring chamber is located on the outer side of the lifting cylinder. A bearing plate is fixedly mounted at the telescopic end of the lifting cylinder. A camera andan SRF05 distance sensor are mounted on the side wall, close to the robot body, of the monitoring chamber. The camera is located above the SRF05 distance sensor. An alarm is mounted in the monitoringchamber. A damping adjustment box is arranged at the bottom end of the partition plate. Anti-collision units are symmetrically arranged on the two side walls of the damping adjustment box. Wheels arefixedly mounted at the bottom of the robot body. According to the artificial intelligence robot, damage, caused by collision, to the robot body can be effectively reduced, and meanwhile, the robot cantravel in more areas.

The invention relates to the technical field of highway anti-collision facilities and discloses a guardrail terminal and a guardrail, which are used for improving the guiding performance, buffer strength and anti-collision energy of guardrails and improving safety of personnel in vehicles. The guardrail terminal comprises at least two stand columns arranged on a roadside, an end guardrail plate, an energy absorption anti-collision device, brackets fixed with the stand columns one to one and a guide pipe, wherein the end guardrail plate penetrates through the energy absorption anti-collision device and is fixed with a foundation, the guide pipe extends along an arrangement direction of the at least two stand columns arranged on the roadside, the two ends of the guide pipe are fixed with the foundation, the energy absorption anti-collision device sleeves the guide pipe, an open groove towards a vehicle running direction is arranged on each bracket, one end of each fixing bolt penetrates through the open groove and is connected with a corresponding stand column bolt hole to fixedly connect the end guardrail plate and the energy absorption anti-collision device with the corresponding stand column.

The invention discloses a modular multilevel buffer anti-collision guardrail. The modular multilevel buffer anti-collision guardrail comprises sliding grooves, long round steel pipes and short round steel pipes, bearings are arranged at the two ends of the long round steel pipes and the two ends of the short round steel pipes, the first bearings on the outmost sides of the two ends of the long round steel pipes are all located in the sliding grooves, and can slide along the sliding grooves, the lower ends of the long round steel pipes are provided with rolling wheels, the rolling wheels can roll in the lower sliding groove located at the bottom, screw holes are reserved in the short round steel pipes, anti-collision plates are arranged between the bearings on the innermost sides of the two ends of the short round steel pipes, every two adjacent long round steel pipes are connected through two stretchable devices, the adjacent long round steel pipes and short round steel pipes are connected through connecting rods, each short round steel pipe and the two corresponding adjacent long round steel pipes form a V-shaped structure, and then the whole anti-collision system is formed. The modular multilevel buffer anti-collision guardrail is simple in structure, reasonable in structure, high in modularization degree, convenient to transport, convenient to install, simple to maintain, good in anti-collision effect, wide in application range and relatively good in economic effect.

The invention discloses an overground hydrant which leaks less water after colliding, is more convenient to repair and has lower repairing cost. The overground hydrant comprises a hydrant body, an anti-collision section, a valve body, a water pressure gauge, a floating ball valve and a tappet, wherein an exhausting valve is arranged at the top of the hydrant body; the anti-collision section is arranged between the hydrant body and the valve body; an annular broken groove is formed in an outer side wall of the anti-collision section; a water leakage valve is arranged at a side part of the top of the valve body; the water leakage valve is communicated with an inner cavity of the anti-collision section through a water leakage channel; the water leakage channel comprises an upper-section water leakage channel located in a bottom flange disc of the anti-collision section and a lower-section water leakage channel located in a top flange disc of the valve body; the water pressure gauge is arranged on a side wall of the hydrant body; the water pressure gauge is communicated with the inner cavity of the valve body through a water pressure channel; the water pressure channel comprises an upper-section water pressure channel located in the side wall of the hydrant body and a lower-section water pressure channel located in the side wall of the anti-collision section; the floating ball valve is arranged in the valve body; and the bottom of the tappet stretches to the upper side of the floating ball valve.

The invention relates to a drilling tool, in particular to a four-in-one drilling tool that achieves highly effective control of the track of medium and deep directional wells. The drilling tool at least includes a drill head (4), a single-bend screw (2), a short drill collar (4), upper stabilizers (5) and a nonmagnetic drill collar (6); the drill head (1), the single-bend screw (2), the short drill collar (4), the upper stabilizers (5) and the nonmagnetic drill collar (6) are connected in turn by screw thread; (3) angular spiral stabilizers (3) are distributed evenly along the external diameter of the single-bend screw (2); the angle building and angle holding for composite drilling is achieved by adjusting the angle of the single-bend screw (2), the short drill collar (4) between the upper stabilizers, or the length of the external diameter of the upper stabilizers (5). The drilling tool can perform track control so as to solve the problems of collision at long and straight well sections, irregular drifting of the easy-to-slope positions, frequent alternation of drilling tools due to the difficulty in controlling the well section tracks, inability for the mechanical drilling speed to release, as well as slow drilling speed.

The invention discloses a sampling method for the original sample of large-scale fully weathered red bed sandstone, which comprises the following steps: manually excavating to the designed sampling depth at the selected intended sampling position; determining the set lithology and weathering type; expand the working face around the proposed sampling location; scrape the sandstone sample into a rock pillar with the inner diameter of the hard circular pipe used for sampling; put the half-separated hard circular pipe on the rock pillar, and use fine particles to fill the gap Fill it up, then fix it; cut off the bottom of the rock pillar, scrape the top and bottom of the rock pillar, and then fix the steel plate on the top and bottom of the rock pillar; wrap the hard circular tube and steel plate with dense gauze, Then fix it, apply liquid paraffin on the emery cloth; wrap it with plastic film, fix it and put it into the box, fill the space around it tightly with broken foam blocks to the top of the box, cover the top plate of the box; transport it to the laboratory. The sampling method of the invention has the advantages of simple operation, little disturbance, good impact resistance, low cost and easy transportation.

The invention relates to anti-collision barrelincluding a guard rail body and a rotating drum, A main body of that guard rail body includes an upright post and a first cross bar and a second cross bar, the columns are parallel and spaced apart, the first cross bar and the second cross bar are perpendicular to the upright post, A first cross bar and a second cross bar are arranged parallel and spaced apart from each other, A rotary drum includes a rotating shaft and a sleeve, The inner cavity of the sleeve is arranged as a hollow cavity, the axial two ends of the sleeve are respectively provided with blocking caps, the two ends of the rotating shaft are fixedly connected with the blocking caps and the two ends of the rotating shaft are exposed with the blocking caps, the sleeve is arrangedbetween the first cross bar and the second cross bar, and the rotating shaft penetrates between the first cross bar and the second cross bar and is rotatably connected with the first cross bar and thesecond cross bar. Due to the rotatability of the rotating drum, the rotating direction of the sleeve forces the runaway vehicle to change direction and return to the normal driving direction, so as to prevent the vehicle from rushing out of the road, protect the vehicle and passengers, reduce the loss caused by the accident, and have a good anti-collision effect.

The invention provides a buffering connector for tramcars, relates to the field of tramcar connectors, and concretely relates to the buffering connector for the tramcars. The buffering connector for the tramcars can prevent the rigid collision of the tramcars, and has a double buffering function. The buffering connector for the tramcars comprises a hydraulic cylinder, an oil storage tank, a buffering spring, a spring pressure plate, a lock nut, a plug connection end and a one-way throttle valve. A rod chamber of the hydraulic cylinder directly communicates with the oil storage tank. By arranging an oil return passage, the rod cavity of the hydraulic cylinder and a rodless cavity of the hydraulic cylinder communicate with each other. The one-way throttle valve is arranged in the oil returnpassage. The one-way throttle direction is: flowing into the rod cavity of the hydraulic cylinder from the rodless cavity of the hydraulic cylinder. The buffering spring sleeves a piston rod of the hydraulic cylinder. The buffering connector for the tramcars has a good anti-collision effect and can effectively prevent collision deformation of the tramcars.

The invention discloses a highway bridge collision prevention device, including mounting plate, a plurality of telescopic springs and fixing plates, the mounting plate is fixedly connected with the inner wall of a bridge handrail, The plurality of telescopic springs are uniformly arranged in parallel in the axial direction, one end of the telescopic spring is fixedly connected with the right sidewall of the mounting plate, the other end of each expansion spring is fixedly connected with the left side wall of the fixing plate, The right side wall of the mounting plate is also connected with anelastic plate, two sliding grooves are arranged below the expansion spring, the sliding grooves are embedded in the bridge deck, the sliding blocks are embedded in the sliding grooves, the two sliding blocks are respectively connected with the front bottom end and the rear bottom end of the fixing plate, and a driving motor is arranged on the side wall of the sliding blocks. Compared with the prior art, the anti-collision device of the highway bridge has good anti-collision effect, can effectively buffer the impact force of the vehicle on the bridge, on the one hand, effectively weakens the impact power and reduces the severity of the accident, on the other hand, weakens the damage of the impact on the highway bridge, and prolongs the service life of the hit structure of the highway bridge.

The invention relates to the technical field of vehicle anti-collision devices, and discloses an anti-collision device for vehicle safety. The anti-collision device comprises a front anti-collision plate, wherein a rear anti-collision plate is arranged under the front anti-collision plate, the bottom of the rear anti-collision plate is fixedly provided with two symmetrically distributed nuts, thebottom of the front anti-collision plate is fixedly provided with at least three equidistantly arranged damping columns, and the inner portion of the front anti-collision plate is provided with a cavity. The anti-collision device for the vehicle safety has the advantages that a conduction rod cooperates with a piston plate, during impact, the impact force can be decomposed through an oblique damping spring, then air inside the cavity is squeezed through the piston plate and discharged through an exhaust hole, a rubber sealing ring is contact with an impact vehicle to form a sealed structure, so that the discharged air acts on the impact vehicle better, the discharged air is utilized to form resistance to achieve the anti-collision effect, thereby reducing the impact force generated in theanti-collision process, and the anti-collision effect is better.

The invention discloses a multi-joint robot with a distance measurement stopping function. The multi-joint robot with the distance measurement stopping function comprises a plurality of joints which are connected in sequence, moving parts used for driving the joints to move and a movement controlling part used for driving the moving parts to move. The multi-joint robot with the distance measurement stopping function further comprises a distance measurement sensor which is used for measuring the spacing distance L' between the multi-joint robot and a nearby object in real time. A control waveform generating part is used for generating a group of PWM waveform data capable of making the moving parts slow down and stop when the spacing distance L' reaches a threshold distance L0. The control waveform generating part is further used for driving the moving parts to slow down until the multi-joint robot stops moving according to the PWM waveform data capable of making the moving parts slow down and stop. According to the multi-joint robot, not only the crash between the robot and the nearby object but also the damage to the robot can be avoided, so that the anti-collision effect is great.