CN111691336A

CN111691336A - Road anti-collision buffer device

Info

Publication number: CN111691336A
Application number: CN202010436221.9A
Authority: CN
Inventors: 张纬; 王方; 许有飞; 黄建飞; 金家盛; 顾云杰; 姚佳宇; 王旗; 闻晓枫; 谭松坤
Original assignee: Zhejiang Lixin Construction Group Co ltd
Current assignee: Zhejiang Lixin Construction Group Co ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2020-09-22

Abstract

The invention relates to the field of municipal road construction, in particular to a road anti-collision buffer device, which comprises a base, wherein a U-shaped plate is fixed at one end of the base, openings at two ends of the U-shaped plate face the other end of the base, the base is arranged in a hollow manner, a collision plate is arranged between the inner walls at two ends of the U-shaped plate, a first buffer part for buffering the collision force of an accident vehicle is arranged between the U-shaped plate and the collision plate, the upper surface of the base is provided with a mounting hole, one end of the mounting hole is positioned in the inner cavity of the U-shaped plate, the other end of the mounting hole is positioned outside the U-shaped plate, a second buffer part for delaying the collision time of the accident vehicle and the collision plate is arranged in the mounting hole, a plurality of first air bags are fixed on the inner wall of the U-shaped plate, air accumulators for inflating the first air bags are arranged on the, meanwhile, the friction between the vehicle and the inner wall of the U-shaped plate is reduced, and the vehicle loss is reduced.

Description

Road anti-collision buffer device

Technical Field

The invention relates to the technical field of municipal road construction, in particular to a road anti-collision buffer device.

Background

The municipal roads are roads which reach all regions of a city, are used for transportation and pedestrians in the city, are convenient for the life, work and cultural entertainment activities of residents, and are connected with the roads outside the city to bear the traffic outside.

The utility model with the bulletin number of CN208055932U discloses a municipal road vehicle direction indication anti-collision barrel, which comprises a first anti-collision barrel and a second anti-collision barrel, the first anti-collision barrel and the second anti-collision barrel have the same structure and are connected through a rail, the bottom end of the first anti-collision barrel is provided with a base, the middle part of the first anti-collision barrel is provided with a red module and a green module, the red module and the green module are mutually overlapped, the interior of the red module is of an open structure, the front and the back of the red module are provided with ventilation openings, the front and the back of the green module are provided with indication arrows, this kind of practical design is reasonable, forms with alternate collocation of red module and green module through the device for this anticollision bucket designs according to the colour that the street lamp shows, and the convenience is observed the road sign information above this anticollision bucket to the traveler who has eye disease a bit.

The above patent publications, however, suffer from the following drawbacks: particularly, on a highway, when the vehicle is maintained on a front road, the vehicle cannot be directly stepped on violently by a brake, or the vehicle is in a failure state of the brake, the vehicle speed is high, but the vehicle is directly collided violently, so that the anti-collision barrel disclosed by the patent can be collided and exploded, the vehicle head is extremely easy to be collided and broken, the anti-collision barrel is poor in anti-collision and buffering effect, and the vehicle damage is serious.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a road anti-collision buffer device which has the effects of small vehicle damage degree and strong buffer performance.

The above object of the present invention is achieved by the following technical solutions:

a road anti-collision buffer device comprises a base fixed in a groove at one end of a high-speed maintenance road section, a U-shaped plate is fixed on the upper surface of one end of the base, openings at two ends of the U-shaped plate face the other end of the base, the base is hollow, collision plates are arranged between the inner walls of the two ends of the U-shaped plate and are positioned above the base, a first buffer piece used for buffering the impact force of the accident vehicle is arranged between the U-shaped plate and the collision plate, the upper surface of the base is provided with a mounting hole communicated with the inner cavity of the base, one end of the mounting hole is positioned in the inner cavity of the U-shaped plate, the other end of the mounting hole is positioned outside the U-shaped plate, a second buffer piece used for delaying the collision time of the accident vehicle and the collision plate is arranged in the mounting hole, a plurality of first air bags are fixed on the inner wall of the U-shaped plate, and air storage parts used for inflating the first air bags are arranged on the inner walls of the two sides of the base.

Through adopting above-mentioned technical scheme, when the brake of vehicle is malfunctioning, under the effect of second bolster, the accident vehicle has been delayed and has collided the board striking time, the collision momentum of vehicle has been consumed simultaneously, when the accident vehicle collided the board, through first bolster, the impact dynamics of accident vehicle has been slowed down, simultaneously at the in-process that the board was collided in the striking, make the gas storage spare aerify for the first gasbag, until the accident vehicle is located between the both sides inner wall of U template, wrap up by the first gasbag of both sides, form the hindrance to the automobile body, the speed of a motor vehicle has been slowed down, the friction between vehicle and the U template inner wall has been reduced simultaneously, the car loss has been reduced.

The invention is further configured to: first bolster including fix hit the board keep away from the polyurethane pad of U template one side, set up the first board at U template inner chamber, fix at the first board towards hitting the first pipe of board one side, slide the first pole on first inside pipe wall, slide the first piston in first inside pipe wall, set up the second board between U template both ends inner wall, fix the second gasbag in second board towards first board one side, first pole one end is fixed and is being collided the board and keep away from one side of polyurethane pad, the other end of first pole is fixed on first piston, first pipe is kept away from and is collided board one end and pass through trachea and second gasbag intercommunication, the second gasbag is located between first board and the second board.

Through adopting above-mentioned technical scheme, when the brake of vehicle is malfunctioning, need force the vehicle through the striking and stop, the accident vehicle is under inertial effect, make the locomotive strike the polyurethane pad, the polyurethane pad belongs to the rubber material, the effect of buffering has, the accident vehicle strikes and hits the direction removal that the striking board orientation is close to the first board, thereby first pole promotes the direction removal that first piston orientation is close to the second board, thereby squeeze into the second gasbag with the gas of first intraductal intracavity, the second gasbag promotes the direction that the first board orientation was kept away from to the first board, thereby consume the striking energy of accident vehicle, make the accident vehicle be difficult to continue to push forward, thereby slow down accident vehicle striking dynamics.

The invention is further configured to: the both sides of first board all are provided with the first spring of a plurality of, first spring one end is fixed on the inner wall of U template, and the other end is fixed on the lateral wall of first board, first spring is the slope setting, the direction of extension of first spring is the acute angle setting with the moving direction of first board.

Through adopting above-mentioned technical scheme, first spring pulling first board for the accident vehicle will hit the board and move the in-process towards the direction of first board, make first spring stretched, thereby the restoring force of first spring has the trend of pulling first board towards the opposite direction of vehicle moving direction, first spring is by tensile in-process, has consumed the impact energy of vehicle, more step makes the accident vehicle be difficult to continue to push forward, thereby slows down accident vehicle striking dynamics.

The invention is further configured to: the second bolster is including rotating the first roller on base inner wall bottom surface, rotating the second roller on the base inner wall bottom surface, fixing the sand grip on the conveyer belt outer wall around conveyer belt, a plurality of book between first roller and second roller, first roller and second roller are located the both ends of mounting hole respectively, first roller is located outside the U template, the second roller is located between the both ends inner wall of U template, the length direction of sand grip is on a parallel with the axial of first roller, the sand grip is fixed on the outer wall of conveyer belt.

Through adopting above-mentioned technical scheme, the vehicle dashes to hitting the board, under the initial condition, the wheel of accident vehicle does not contact the conveyer belt, when the accident vehicle wheel that is fast touches the conveyer belt, under the effect of frictional force, in the position of wheel and conveyer belt at the contact point, the direction that the conveyer belt removed is the same at contact point pivoted tangential direction with the wheel, the vehicle is for hitting the board, carry and drive, the impact time between accident vehicle and the board of hitting has been prolonged, consume the momentum that converts the conveyer belt into with the momentum of vehicle simultaneously, make accident vehicle be difficult to the violent striking hit the board on, the car loss has been reduced.

The invention is further configured to: the air storage part comprises a second pipe fixed on the inner side wall of the base, an annular plate fixed on the inner wall of one end of the second roller far away from the second pipe, an air outlet one-way valve fixed on the inner wall of the annular plate, a second piston sliding in the inner cavity of one end of the annular plate far away from the second pipe, and an air inlet one-way valve arranged on the second piston in a penetrating mode, wherein the air outlet one-way valve is communicated with the first air bag through a hose embedded on the inner wall of the U-shaped plate, and a driving part used for enabling the second piston to move in the inner cavity of the second pipe is arranged on one side, far away from the annular plate.

Through adopting above-mentioned technical scheme, the second roller rotates, through the driving piece for the piston motion is done to the second piston in the inner chamber of second pipe, and external gas gets into the inner chamber of second pipe through the gap of base, then is impressed in first gasbag by the second piston, thereby accident vehicle is by the centre gripping between the first gasbag of both sides, has reduced the friction between automobile body and the U template inner wall, has reduced the car and has decreased the car and decrease.

The invention is further configured to: the driving piece comprises a circular plate coaxially fixed on the rotating shaft of the second roller, a second rod fixed on one side, close to the circular plate, of the second piston, and a third rod rotatably connected to the eccentric position of the circular plate, and one end, far away from the circular plate, of the third rod is rotatably connected to one side of the second rod.

Through adopting above-mentioned technical scheme, when aerifing in the first gasbag, the second roller rotates and makes the plectane rotate together, thereby the plectane makes, form crank link mechanism between third pole and second pole and the second piston, thereby with the rotation of plectane, it is reciprocating motion along the axial of second pipe in the inner chamber of second pipe to convert into the second pole pulling second piston, the gas that gets into the inner chamber of second pipe, by the second piston impress in the first gasbag, thereby accident vehicle is by the centre gripping between the first gasbag of both sides, the friction between automobile body and the U template inner wall has been reduced, the car loss has been reduced.

The invention is further configured to: be provided with a plurality of backing roll between first roller and the second roller, the one end of backing roll is provided with the regulating part that is used for adjusting conveyer belt tensioning degree, the regulating part is close to the slider on backing roll one side inner wall, sets up the threaded rod that is vertical setting near slider one end at the backing roll pivot, fixes the handle on the threaded rod stretches out base outer wall upper surface, the backing roll rotates to be connected between two sliders, the glide direction and the vertical direction of slider are parallel arrangement, slider and threaded rod threaded connection, the threaded rod rotates to be connected on the base.

Through adopting above-mentioned technical scheme, the backing roll makes the accident vehicle when on the conveyer belt, the accident vehicle is difficult to press the conveyer belt absolutely, the backing roll provides the holding power, thereby the bearing capacity of conveyer belt has been increased, also make the conveyer belt be convenient for more simultaneously rotate under the effect of wheel friction, when the conveyer belt is lax, through rotating the handle, make threaded rod and handle rotate together, thereby the slider upwards slides along vertical direction, the backing roll upwards removes simultaneously, thereby with the conveyer belt tensioning.

The invention is further configured to: the utility model discloses a U template, including first board, second board and first board, the first board one side is kept away from to the second board is provided with a plurality of second spring, second spring one end is fixed in the second board and is kept away from one side of first board, the second spring other end is fixed on the U template and is kept away from the inside wall that hits the board, the second board slides on the base along the length direction of base, the both ends of U template are provided with the guide post, the guide post rotates the upper surface of connecting at the.

Through adopting above-mentioned technical scheme, the second spring makes the accident vehicle be difficult to more promote the direction that the second board removed towards the accident vehicle, has further slowed down the impact dynamics of accident vehicle, and the direction rubber roller makes the vehicle be difficult to hit other positions, and the direction rubber roller of both sides also can consume the clash energy of vehicle simultaneously, and the direction rubber roller makes the vehicle can be better to hitting the board.

In conclusion, the beneficial technical effects of the invention are as follows: by arranging the first air bags, the accident vehicle is positioned between the inner walls of the two sides of the U-shaped plate and is wrapped by the first air bags on the two sides, so that the vehicle body is blocked, the speed of the vehicle is reduced, the friction between the vehicle and the inner walls of the U-shaped plate is reduced, and the vehicle loss is reduced;

by arranging the first spring, the second spring and the second air bag, the second air bag pushes the first plate towards the direction far away from the first plate, the first spring is stretched when the accident vehicle moves the collision plate towards the direction of the first plate, so that the restoring force of the first spring has the tendency of pulling the first plate towards the direction opposite to the moving direction of the vehicle, the impact energy of the vehicle is consumed when the first spring is stretched, the accident vehicle is difficult to continue to push forwards in the closer step, and the collision force of the accident vehicle is reduced;

the conveying belt, the first roller and the second roller are arranged and are used for conveying and driving, so that the collision time between the accident vehicle and the collision plate is prolonged, and meanwhile, the momentum of the vehicle is consumed and converted into the momentum of the conveying belt, so that the accident vehicle is difficult to violently collide the collision plate, and the vehicle loss is reduced;

through setting up the backing roll, the accident vehicle is difficult to press the conveyer belt absolutely, and the backing roll provides the holding power to increased the bearing capacity of conveyer belt, through setting up threaded rod and slider, when the conveyer belt is lax relatively, through rotating the handle, make the threaded rod rotate with the handle together, thereby the slider upwards slides along vertical direction, and the backing roll rebound simultaneously, thereby with the conveyer belt tensioning.

Through setting up direction rubber roll for the vehicle is difficult to hit other positions, and the direction rubber roll of both sides also can consume the clash energy of vehicle simultaneously, and direction rubber roll makes the impact that the vehicle can be better to hitting the board.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

fig. 2 is an exploded view of the first buffer of the present embodiment;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is an exploded view of the overall structure within the base cavity of this embodiment;

FIG. 5 is a partial enlarged view at B in FIG. 4;

fig. 6 is a partially enlarged view at C in fig. 4.

Reference numerals: 1. a base; 2. A U-shaped plate; 3. a striking plate; 4. a first buffer member; 5. mounting holes; 6. a second buffer member; 7. a first air bag; 8. a gas storage member; 9. a polyurethane pad; 10. a first plate; 11. a first tube; 12. a first lever; 13. a first piston; 14. a second plate; 15. a second air bag; 16. a first spring; 17. a first roller; 18. a second roller; 19. a conveyor belt; 20. a convex strip; 21. a second tube; 22. an annular plate; 23. an air outlet one-way valve; 24. a second piston; 25. an air inlet check valve; 26. a drive member; 27. a circular plate; 28. a second lever; 29. a third lever; 30. a support roller; 31. an adjustment member; 32. a slider; 33. a threaded rod; 34. a handle; 35. a second spring; 36. a guide post; 37. and (4) guiding the rubber roller.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, the road anti-collision buffer device disclosed by the invention comprises a base 1, wherein the base 1 is fixed in a groove on the ground of a high-speed maintenance road section, so that the upper surface of the base 1 and the road surface are positioned in a plane, a U-shaped plate 2 is fixed on the upper surface of one end of the base 1, the opening directions of the two ends of the U-shaped plate 2 are parallel to the length direction of the base 1, guide posts 36 are arranged at the two ends of the U-shaped plate 2, the guide posts 36 are rotatably connected on the upper surface of the base 1, guide rubber rollers 37 are coaxially fixed on the guide posts 36, and the guide rubber rollers 37 are made of thermoplastic polyurethane elastomer rubber.

As shown in fig. 2 and 3, a collision plate 3 is arranged between the inner walls of two ends of a U-shaped plate 2, the collision plate 3 is positioned above a base 1, a first buffer member 4 for buffering the collision force of an accident vehicle is arranged between the U-shaped plate 2 and the collision plate 3, the first buffer member 4 comprises a polyurethane pad 9, a first plate 10, a first tube 11, a first rod 12, a first piston 13, a second plate 14 and a second air bag 15, the polyurethane pad 9 is fixed on one side of the collision plate 3 away from the U-shaped plate 2, the first plate 10 is positioned on one side of the collision plate 3 close to the U-shaped plate 2, the first plate 10 is positioned in the inner cavity of the U-shaped plate 2, a plurality of first springs 16 are arranged on two sides of the first plate 10, one end of each first spring 16 is fixed on the inner wall of the U-shaped plate 2, the other end of each first spring is fixed on the side wall of the first plate 10, the first springs 16 are arranged in an inclined, one end of a first pipe 11 is fixed on one side of a first plate 10 facing to a collision plate 3, the axial direction of the first pipe 11 is parallel to the length direction of a base 1, a first piston 13 slides on the inner wall of one end of the first pipe 11 far away from the first plate 10, one end of a first rod 12 is fixed on the collision plate 3, the other end is fixed on the first piston 13, a second plate 14 is arranged on one side of the first plate 10 far away from the collision plate 3, the second plate 14 is positioned between the inner walls of two ends of a U-shaped plate 2, a second air bag 15 is fixed on one side of the second plate 14 facing to the first plate 10, one end of the first pipe 11 far away from the collision plate 3 is connected on an air inlet of the second air bag 15 through a soft air pipe, an accident vehicle collides with the collision plate 3 to push the collision plate, so that the first rod 12 pushes the first piston 13 to move toward the direction of approaching the second plate 14, so that the gas in the inner cavity of the first pipe 11 is driven into the second air bag 15, thereby reducing the impact force of the accident vehicle.

As shown in fig. 1 and 2, the second plate 14 is slidably connected to the upper surface of the base 1 along the length direction of the base 1, one side of the second plate 14 away from the first plate 10 is provided with a plurality of second springs 35, one end of each second spring 35 is fixed to one side of the second plate 14 away from the first plate 10, and the other end of each second spring 35 is fixed to the inner wall of the U-shaped plate 2.

As shown in fig. 2 and 4, the base 1 is a hollow structure, the upper surface of the base 1 is provided with a mounting hole 5, the mounting hole 5 is communicated with the inner cavity of the base 1, the mounting hole 5 is a rectangular hole, the length direction of the mounting hole 5 is parallel to the length direction of the base 1, the three-quarter length of the mounting hole 5 is located in the inner cavity of the U-shaped plate 2, and the remaining one-quarter length of the mounting hole 5 is located outside the U-shaped plate 2.

As shown in fig. 2 and 4, a second buffer member 6 for reducing the impact force of the accident vehicle is further disposed in the mounting hole 5, the second buffer member 6 includes a first roller 17, a second roller 18, a conveyor belt 19, and ribs 20, the first roller 17 rotates on the lower surface of the inner wall of the base 1, the second roller 18 rotates and is connected to the lower surface of the inner wall of the base 1, the first roller 17 and the second roller 18 are respectively located at two ends of the mounting hole 5, the first roller 17 is located at the outer side of the U-shaped plate 2, the second roller 18 is located between the inner walls of the two ends of the U-shaped plate 2, the conveyor belt 19 is a crawler-type conveyor belt, the conveyor belt 19 is wound on the first roller 17 and the second roller 18, the ribs 20 are fixed on the outer surface of the conveyor belt 19, when the accident vehicle is located on the upper surface of the conveyor belt 19, the wheels of the vehicle rotate, the ribs 20 increase the friction force between the conveyor belt, the conveyer belt 19 moves, and the collision time between the accident vehicle and the collision plate 3 is prolonged, so that the collision force of the accident vehicle is relieved, and the accident vehicle is hard to collide with the collision plate 3 violently.

As shown in fig. 3 and 5, a plurality of first air bags 7 are arranged on the inner wall of the U-shaped plate 2, air storage members 8 for inflating the first air bags 7 on the inner walls of the two ends of the U-shaped plate 2 (as shown in fig. 2) are arranged on the inner walls of the two sides of the base 1, each air storage member 8 comprises a second pipe 21, an annular plate 22, an air outlet one-way valve 23, a second piston 24 and an air inlet one-way valve 25, the second pipe 21 is fixed on the inner wall of the base 1, the two ends of the second pipe 21 are both communicated with the inner cavity of the base 1, the annular plate 22 is fixed on the inner wall of the second pipe 21 far away from the second roller 18, the air outlet one-way valve 23 is fixed on the inner wall of the annular plate 22, an air outlet hole of the air outlet one-way valve 23 faces to the side far away from the second pipe 21, an air outlet of the air outlet one-way valve 23 is communicated with air inlets of the plurality of first air bags 7 through, the air inlet one-way valve 25 penetrates through the eccentric position of the second piston 24, the air inlet one-way valve 25 penetrates through the whole second piston 24, the air inlet of the air inlet one-way valve 25 is located on one side, far away from the annular plate 22, of the second piston 24, and the air outlet of the air inlet one-way valve 25 is located between the second piston 24 and the annular plate 22.

As shown in fig. 4 and 5, a driving member 26 for piston movement of the second piston 24 in the inner cavity of the second tube 21 is disposed on a side of the second piston 24 away from the annular plate 22, the driving member 26 includes a circular plate 27, a second rod 28 and a third rod 29, the circular plate 27 is coaxially fixed on the rotating shaft of the second roller 18, one end of the second rod 28 is located in the inner cavity of the second tube 21 and fixed on a side of the second piston 24 away from the annular plate 22, the other end of the second rod 28 extends out of the second tube 21, one end of the third rod 29 is rotatably connected to an eccentric position of the circular plate 27, the other end of the third rod 29 is rotatably connected to an outer wall of the end of the second rod 28 extending out of the second tube 21, in an initial state, a wheel of the accident vehicle does not contact with the conveyer belt 19, when the wheel of the accident vehicle contacts the conveyer belt 19, the wheel and the conveyer belt 19 are at a contact point under the action of friction, a moving direction of the conveyer belt, so that the second roller 18 and the first roller 17 rotate, the speed of the vehicle is high under the action of inertia, the speed of the conveyor belt 19 cannot be changed suddenly, so that the vehicle continues to move forwards, and when the vehicle collides against the striker plate 3, and pushes the striking plate 3 to move toward the direction of approaching the second plate 14, the second roller 18 rotates so that the circular plate 27 rotates together, so that the second piston 24 performs a piston motion in the inner cavity of the second tube 21 under the action of the second rod 28 and the third rod 29, and the outside air passes through the gap of the base 1, enters the inner cavity of the second tube 21, and then is pressed into the first air bag 7 (shown in fig. 3) by the second piston 24 so that the accident vehicle is clamped between the first air bags 77 (shown in fig. 3) on both sides, reducing friction between the vehicle body and the inner wall of the U-shaped plate 27 (shown in fig. 2) and reducing vehicle damage.

As shown in fig. 4 and 6, a plurality of supporting rollers 30 are arranged between the first roller 17 and the second roller 18, the supporting rollers 30 make it difficult for an accident vehicle to break the conveyer belt 19 when the accident vehicle is on the conveyer belt 19, the supporting rollers 30 provide a supporting force, thereby increasing the bearing capacity of the conveyer belt 19, and simultaneously making the conveyer belt 19 more convenient to rotate under the action of wheel friction, one end of the supporting rollers 30 is provided with an adjusting member 31 for adjusting the tension degree of the conveyer belt 19, the adjusting member 31 comprises a sliding block 32, a threaded rod 33 and a handle 34, the sliding block 32 slides vertically on the inner wall of the base 1 facing the rotating shaft of the supporting rollers 30, the threaded rod 33 is rotatably connected to the base 1, the threaded rod 33 is vertically arranged, the upper end of the threaded rod 33 extends out of the upper surface of the outer wall of the base 1, the handle 34 is fixed on the upper end surface of the, the threaded rod 33 is made to rotate together with the handle 34 so that the slide 32 slides upwards in the vertical direction, while the support roller 30 moves upwards, thereby tensioning the conveyor belt 19.

The implementation principle of the embodiment is as follows: when a vehicle running on an expressway encounters a maintenance road section, the speed of the vehicle is high, the vehicle cannot step on a brake violently, the direction of the vehicle cannot be hit violently, the vehicle is forced to stop only by collision when the vehicle is seen by eyes and is about to jump into a construction area, the vehicle is difficult to collide to other positions by the guide rubber rollers 37, the guide rubber rollers 37 on the two sides can also consume collision energy of the vehicle, the vehicle can better impact the collision plate 3 by the guide rubber rollers 37, in the process that the vehicle impacts the collision plate 3, the front wheel of the vehicle firstly contacts the conveying belt 19, the conveying belt 19 rotates under the action of the convex strips 20, the conveying belt 19 moves, the collision time between the accident vehicle and the collision plate 3 is prolonged, and meanwhile, the momentum of the accident vehicle is consumed.

The conveying belt 19 rotates to enable the second roller 18 and the first roller 17 to rotate simultaneously, at the moment, the second roller 18 and the circular plate 27 rotate together to enable the second piston 24 to do piston movement in the second pipe 21, the first air bags 7 on the inner walls of the two sides of the U-shaped plate 2 start to inflate, the speed of the conveying belt 19 cannot change suddenly directly due to the fact that the rotating speed of wheels of the accident vehicle is higher than that of the conveying belt 19, the conveying belt 19 needs a period of acceleration time, the accident vehicle enables a vehicle head to impact the polyurethane cushion 9 under the action of inertia, the polyurethane cushion 9 is made of rubber materials and has a buffering effect, the accident vehicle impacts the collision plate 3 and pushes the collision plate 3, the first rod 12 pushes the first piston 13 to move towards the direction close to the second plate 14, so that the gas in the inner cavity of the first pipe 11 is driven into the second air bag 15, the second air bag 15 pushes the first plate 10 towards the direction far away from the first plate, meanwhile, under the action of the first spring 16 and the second spring 35, the accident vehicle is difficult to push forwards continuously, so that the impact force of the accident vehicle is relieved.

When the vehicle body moves forward while the vehicle in question pushes the first plate 10, until the entire vehicle body is on the conveyor belt 19, the speed of the conveyor belt 19 is substantially the same as the speed of the wheels, and the second roller 18 rotates so that the circular plate 27 rotates together, the speed of rotation also increases, the speed of inflation of the first airbag 7 also increases, the second piston 24 is driven by the second rod 28 and the third rod 29 to perform a piston movement in the inner cavity of the second tube 21, and outside air passes through the gap of the base 1, enters the inner cavity of the second tube 21, then is pressed into the first air bag 7 by the second piston 24, and the accident vehicle is positioned between the inner walls of the two ends of the U-shaped plate 2 and is wrapped by the first air bags 7 at the two sides, the automobile body is blocked, the speed of the automobile is slowed down, the friction between the automobile body and the inner wall of the U-shaped plate 2 is reduced, and the automobile loss is reduced.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a road anticollision buffer, is including fixing base (1) in high-speed maintenance highway section one end recess, its characterized in that: the automobile collision bumper is characterized in that a U-shaped plate (2) is fixed on the upper surface of one end of a base (1), openings at two ends of the U-shaped plate (2) face the other end of the base (1), the base (1) is arranged in a hollow mode, a collision plate (3) is arranged between inner walls at two ends of the U-shaped plate (2), the collision plate (3) is arranged above the base (1), a first buffer part (4) used for buffering the collision force of an accident vehicle is arranged between the U-shaped plate (2) and the collision plate (3), a mounting hole (5) communicated with the inner cavity of the base (1) is formed in the upper surface of the base (1), one end of the mounting hole (5) is arranged in the inner cavity of the U-shaped plate (2), the other end of the mounting hole is arranged outside the U-shaped plate (2), a second buffer part (6) used for delaying the collision time of the accident vehicle and the collision plate (3) is arranged in the mounting hole (5), a, the inner walls of the two sides of the base (1) are provided with air storage pieces (8) used for inflating the first air bag (7).

2. A road crash cushion as set forth in claim 1, wherein: the first buffer part (4) comprises a polyurethane cushion (9) fixed on one side of the collision plate (3) far away from the U-shaped plate (2), a first plate (10) arranged in the inner cavity of the U-shaped plate (2), a first pipe (11) fixed on one side of the first plate (10) facing the collision plate (3), a first rod (12) sliding on the inner wall of the first pipe (11), a first piston (13) sliding in the inner wall of the first pipe (11), a second plate (14) arranged between the inner walls at two ends of the U-shaped plate (2), and a second air bag (15) fixed on one side of the second plate (14) facing the first plate (10), one end of the first rod (12) is fixed on one side of the collision plate (3) far away from the polyurethane cushion (9), the other end of the first rod (12) is fixed on the first piston (13), one end of the first pipe (11) far away from the collision plate (3) is communicated with the second air bag (15) through an air pipe, the second bladder (15) is located between the first plate (10) and the second plate (14).

3. A road crash cushion as set forth in claim 2, wherein: the both sides of first board (10) all are provided with a plurality of first spring (16), first spring (16) one end is fixed on the inner wall of U template (2), and the other end is fixed on the lateral wall of first board (10), first spring (16) are the slope setting, the direction of extension of first spring (16) and the direction of movement of first board (10) are the acute angle setting.

4. A road crash cushion as set forth in claim 3, wherein: second bolster (6) are including rotating first roller (17) on base (1) inner wall bottom surface, rotating second roller (18) on base (1) inner wall bottom surface, around rolling up conveyer belt (19) between first roller (17) and second roller (18), sand grip (20) that a plurality of fixed on conveyer belt (19) outer wall, first roller (17) and second roller (18) are located the both ends of mounting hole (5) respectively, first roller (17) are located outside U template (2), second roller (18) are located between the both ends inner wall of U template (2), the length direction of sand grip (20) is on a parallel with the axial of first roller (17), sand grip (20) are fixed on the outer wall of conveyer belt (19).

5. A road crash cushion according to claim 4, wherein: the air storage part (8) comprises a second pipe (21) fixed on the inner side wall of the base (1), an annular plate (22) fixed on the inner wall of one end of a second roller (18) away from the second pipe (21), an air outlet one-way valve (23) fixed on the inner wall of the annular plate (22), a second piston (24) sliding in the inner cavity of one end of the annular plate (22) away from the second pipe (21), and an air inlet one-way valve (25) arranged on the second piston (24) in a penetrating mode, wherein the air outlet one-way valve (23) is communicated with the first air bag (7) through a hose embedded on the inner wall of the U-shaped plate (2), and a driving part (26) used for the second piston (24) to do piston movement in the inner cavity of the second pipe (21) is arranged on one side, away from the annular plate (22), of the second.

6. A road crash cushion according to claim 5, wherein: the driving piece (26) comprises a circular plate (27) coaxially fixed on the rotating shaft of the second roller (18), a second rod (28) fixed on one side, close to the circular plate (27), of the second piston (24), and a third rod (29) rotatably connected to the eccentric position of the circular plate (27), wherein one end, far away from the circular plate (27), of the third rod (29) is rotatably connected to one side of the second rod (28).

7. A road crash cushion according to claim 6, wherein: be provided with a plurality of backing roll (30) between first roller (17) and second roller (18), the one end of backing roll (30) is provided with regulating part (31) that is used for adjusting conveyer belt (19) tensioning degree, regulating part (31) are close to slider (32) on backing roll one side inner wall including sliding in base (1), set up threaded rod (33) that slider (32) one end is vertical setting in backing roll (1) pivot, fix handle (34) on base (1) outer wall upper surface is stretched out in threaded rod (33), backing roll (30) rotate to be connected between two slider (32), the direction of sliding of slider (32) is parallel arrangement with vertical direction, slider (32) and threaded rod (33) threaded connection, threaded rod (33) rotate to be connected on base (1).

8. A road crash cushion according to claim 7, wherein: second board (14) are kept away from first board (10) one side and are provided with a plurality of second spring (35), second spring (35) one end is fixed in one side that first board (10) were kept away from in second board (14), second spring (35) other end is fixed on U template (2) keep away from the inside wall that hits board (3), second board (14) slide on base (1) along the length direction of base (1), the both ends of U template (2) are provided with guide post (36), guide post (36) rotate the upper surface of connecting at base (1), coaxial fixed has direction rubber roll (37) on guide post (36).