阅读说明：本技术 一种新型道路桥梁防护装置 (Novel road and bridge protection device ) 是由 丁道勇 于 2021-09-27 设计创作，主要内容包括：本发明公开了一种新型道路桥梁防护装置,包括一对护栏支架和设于一对护栏支架之间的防护横杆连接机构,护栏支架包括底座,底座上连接有护栏立柱,防护横杆连接机构设于一对护栏立柱之间,防护横杆连接机构包括第一防护横杆和第二防护横杆,第一防护横杆和第二防护横杆与护栏立柱之间均连接有衔接件,第一防护横杆与第二防护横杆之间转动连接有滚动式防护柱。本发明通过护栏上相应机构的设置,当车辆与护栏发生碰撞时,可以改变车辆与护栏之间的撞击点,使得静态的撞击变成动态的撞击,通过能量的转换来进行撞击力度的缓冲,大幅降低护栏在承受撞击时发生形变的概率,从而可以大幅提高护栏的防撞能力,进而可以保证车辆内人员的安全。(The invention discloses a novel road and bridge protection device which comprises a pair of guardrail supports and a protection cross rod connecting mechanism arranged between the pair of guardrail supports, wherein each guardrail support comprises a base, guardrail upright posts are connected onto the bases, the protection cross rod connecting mechanism is arranged between the pair of guardrail upright posts, the protection cross rod connecting mechanism comprises a first protection cross rod and a second protection cross rod, connecting pieces are respectively connected between the first protection cross rod and the guardrail upright posts, and rolling type protection posts are rotatably connected between the first protection cross rod and the second protection cross rod. According to the invention, through the arrangement of the corresponding mechanisms on the guardrail, when a vehicle collides with the guardrail, the collision point between the vehicle and the guardrail can be changed, so that static collision is changed into dynamic collision, the collision force is buffered through energy conversion, and the probability of deformation of the guardrail when the guardrail bears the collision is greatly reduced, so that the collision avoidance capability of the guardrail can be greatly improved, and further, the safety of personnel in the vehicle can be ensured.)

1. A novel road and bridge protection device comprises a pair of guardrail supports (1) and a protection cross rod connecting mechanism (2) arranged between the guardrail supports (1), and is characterized in that the guardrail supports (1) comprise bases (101), guardrail upright columns (102) are connected onto the bases (101), the protection cross rod connecting mechanism (2) is arranged between the guardrail upright columns (102), the protection cross rod connecting mechanism (2) comprises first protection cross rods (201) and second protection cross rods (202), linking pieces (203) are connected between the first protection cross rods (201) and the guardrail upright columns (102) and between the second protection cross rods (202) and the guardrail upright columns (102), and a plurality of rolling type protection columns (3) which are uniformly distributed are rotatably connected between the first protection cross rods (201) and the second protection cross rods (202);

roll formula protection post (3) are including protection steel wire (301), all be connected with bearing (302) between protection steel wire (301) and first protection horizontal pole (201) and second protection horizontal pole (202), protection steel wire (301) inside is equipped with cavity (303), cavity (303) intussuseption is filled with non-Newtonian fluid (304), the outside parcel of protection steel wire (301) has protective air bag (307), be equipped with collision quick trigger mechanism (4) in guardrail stand (102).

2. The novel road and bridge protection device according to claim 1, wherein a mounting cavity (103) is bored in the guardrail posts (102), and the collision quick-triggering mechanism (4) is arranged in the mounting cavity (103).

3. The novel road and bridge protection device according to claim 1, wherein the collision quick-triggering mechanism (4) comprises an outer shell (401) and an inner shell (402), a filter (403) is arranged between the outer shell (401) and the inner shell (402), and a gas generating agent (404) is filled in the inner shell (402).

4. A novel road and bridge protection device as claimed in claim 3, wherein a plurality of vent holes (405) are uniformly distributed on the circumference of the outer shell (401), a plurality of capillary holes are arranged on the side wall of the inner shell (402), and the inside of the inner shell (402) is communicated with the outside through the capillary holes and the vent holes (405).

5. A novel road and bridge protection device according to claim 3, wherein an igniter (406) is connected to the outer shell (401), the igniter (406) is arranged inside the inner shell (402) through the outer shell (401), a power source (407) is arranged in the guardrail post (102), and a connecting wire (408) is connected between the power source (407) and the igniter (406).

6. The novel road and bridge protection device as claimed in claim 1, wherein an air pipe (204) is arranged in the first protection cross rod (201), and the air pipe (204) is communicated with the installation cavity (103).

7. The novel road and bridge protection device as claimed in claim 1, wherein the second protection cross bar (202) is connected with a solar cell panel (205) matched with the rolling type protection post (3), a charging and discharging controller (206) is installed in the second protection cross bar (202), and the plurality of solar cell panels (205) are electrically connected with the charging and discharging controller (206).

8. The novel road and bridge protection device as claimed in claim 1, wherein a gas transmission branch pipe (305) is inserted into the cavity (303), the gas transmission branch pipe (305) penetrates through the protection steel wire (301) and the bearing (302) and is communicated with the gas transmission pipe (204), the side wall of the gas transmission branch pipe (305) in the cavity (303) is connected with a plurality of uniformly distributed connecting pipes (306), and the protection airbag (307) is communicated with the gas transmission branch pipe (305) through the connecting pipes (306).

9. The novel road and bridge protection device as claimed in claim 8, wherein a sealing element is connected between the gas transmission branch pipe (305) and the protection steel wire (301), and the sealing element is made of rubber.

10. The novel road and bridge protection device according to claim 1, wherein a trigger sensor (409) and a control chip (410) are installed on the guardrail posts (102), the trigger sensor (409) is electrically connected with the control chip (410), and the control chip (410) is electrically connected with the charge and discharge controller (206) and the power supply (407) respectively.

Technical Field

The invention belongs to the technical field of road and bridge protection, and particularly relates to a novel road and bridge protection device.

Background

The road and bridge generally consists of a plurality of parts such as a roadbed, a road surface, a bridge, tunnel engineering, traffic engineering facilities and the like, and the road and bridge is an infrastructure for various trackless vehicles and pedestrians to pass through; the roads are divided into highways, urban roads, country roads, industrial roads, forestry roads, examination roads, competition roads, automobile test roads, workshop roads, school roads and the like according to the use characteristics of the roads. In order to ensure the safety of vehicles and pedestrians on roads, corresponding protective devices are often installed on the roads.

A commonly used protective device on roads is a guardrail, which is also called: a land guardrail, a traffic guardrail, a high road barrier or a road fence. The guardrail is formed by weaving and welding domestic high-quality low-carbon steel wires and aluminum-magnesium alloy wires and has the characteristics of flexible assembly, firmness and durability. The guardrail wall can be manufactured into the guardrail wall for use, can also be used as a temporary isolation net, and can be realized by adopting different upright post fixing modes in use.

Guardrail among the prior art mainly adopts the low carbon steel wire, aluminium magnesium alloy silk is woven the welding and is formed, it has the equipment in a flexible way, durable characteristics to a certain extent, nevertheless when the guardrail receives the impact of the great power of vehicle, because the protection steel wire is the welded on the guardrail, the striking point between vehicle and the guardrail is fixed, the striking point that leads to the guardrail bears huge impact force, the guardrail takes place to warp the damage easily under the impact force, lead to the protective capacities decline of guardrail, serious can cause personnel's injures and deaths.

Therefore, in view of the above technical problems, there is a need to provide a new road and bridge protection device.

Disclosure of Invention

The invention aims to provide a novel road and bridge protection device, which aims to solve the problem that the impact point of a guardrail is easy to damage due to the fact that the guardrail bears huge impact force because of the welding of protection steel wires.

In order to achieve the above object, an embodiment of the present invention provides the following technical solutions:

a novel road and bridge protection device comprises a pair of guardrail supports and a protection cross rod connecting mechanism arranged between the guardrail supports, wherein each guardrail support comprises a base, guardrail stand columns are connected to the bases, the protection cross rod connecting mechanism is arranged between the guardrail stand columns, the protection cross rod connecting mechanism comprises a first protection cross rod and a second protection cross rod, connecting pieces are connected between the first protection cross rod and the guardrail stand columns, and a plurality of rolling type protection columns which are uniformly distributed are rotatably connected between the first protection cross rod and the second protection cross rod;

roll formula protection post is including the protection steel wire, all be connected with the bearing between protection steel wire and first protection horizontal pole and the second protection horizontal pole, the inside cavity that is equipped with of protection steel wire, the cavity intussuseption is filled with non-Newton fluid, the outside parcel of protection steel wire has protective air bag, be equipped with collision quick trigger mechanism in the guardrail stand.

Furthermore, a mounting cavity is formed in the guardrail stand column in a chiseling mode, and the collision quick-triggering mechanism is arranged in the mounting cavity and used for storing the collision quick-triggering mechanism and facilitating mounting and use of the collision quick-triggering mechanism.

Further, collision quick trigger mechanism includes shell and inner shell, be equipped with the filter between shell and the inner shell for filter gas generating agent, avoid the gas generating agent exhaust shell that does not take place to react, avoid causing the waste of gas generating agent, the inner shell intussuseption is filled with gas generating agent, and gas generating agent can produce a large amount of gases under the effect of firearm, is used for making protective airbag's inflation, thereby can reduce the collision dynamics between vehicle and the protection steel wire by a wide margin for personnel's safety in the protection vehicle.

Further, the air vent that has a plurality of circumference evenly distributed is dug on the shell, and the discharge of gas generating agent at the firearm production gas of being convenient for makes protective airbag can expand for reduce the collision dynamics between vehicle and the protection steel wire by a wide margin, personnel's safety in the protection vehicle, be equipped with a plurality of capillary holes on the inner shell lateral wall, the inner shell is inside to be linked together through capillary hole and air vent and external world, is used for the back gas of quick discharge reaction, makes protective airbag expand under gas action.

Further, be connected with some firearm on the shell, some firearm link up inside the shell locates the inner shell, when the inflation takes place, some firearm work for gas generant produces gas fast under the effect of some firearm, makes the protection gasbag inflation, be equipped with the power in the guardrail stand for provide electric power effect for the work of some firearm, be connected with the connecting wire between power and the some firearm for carry out electric power transmission.

Further, be equipped with the gas-supply pipe in the first protection horizontal pole, the gas-supply pipe is linked together with the installation cavity for in carrying the gas that produces under the gas generant effect to the gas-supply branch pipe through the gas-supply pipe, and then can carry to in the protection gasbag, make protection gasbag expand under the gas effect fast.

Further, be connected with on the second protection horizontal pole with roll formula protection post assorted solar cell panel for absorb solar energy, thereby can charge for the power, install charge-discharge controller in the second protection horizontal pole for the energy that conversion solar cell panel collected, it is a plurality of solar cell panel all with charge-discharge controller electric connection.

Further, the cavity interpolation is equipped with gas transmission branch pipe, gas transmission branch pipe link up protection steel wire and bearing and gas-supply pipe and is linked together, and the gas in the gas transmission pipe of being convenient for enters into the gas transmission branch pipe, gas transmission branch pipe is connected with a plurality of evenly distributed's connecting pipe on being located the lateral wall of cavity, protection gasbag passes through the connecting pipe and is linked together with gas transmission branch pipe, and the gas in the gas transmission branch pipe of being convenient for enters into protection gasbag through a plurality of connecting pipes for protection gasbag expands fast under gaseous effect, thereby makes the expanded protection gasbag parcel in the outside of protection steel wire, makes the whole elasticity that is rich in the protection steel wire outside for buffer vehicle is to the striking dynamics of protection steel wire, on the one hand, reduces the probability of protection steel wire damage by a wide margin, improves the protective capability of protection steel wire, and on the other hand can protect personnel's safety in the vehicle.

Furthermore, be connected with the sealing member between gas transmission branch pipe and the protection steel wire, the material of sealing member is rubber for the non-Newtonian fluid in the sealed cavity avoids non-Newtonian fluid's revealing.

Further, install trigger sensor and control chip on the guardrail stand, trigger sensor and control chip electric connection, trigger sensor are used for monitoring the striking dynamics, and when the striking dynamics exceeded the value that trigger sensor set for, some firearm began work, and control chip is used for controlling the operation of some firearm, control chip respectively with charge-discharge controller and power electric connection.

Compared with the prior art, the invention has the following advantages:

according to the invention, through the arrangement of the corresponding mechanisms on the guardrail, when a vehicle collides with the guardrail, the collision point between the vehicle and the guardrail can be changed, so that static collision is changed into dynamic collision, the collision force is buffered through energy conversion, and the probability of deformation of the guardrail when the guardrail bears the collision is greatly reduced, so that the collision avoidance capability of the guardrail can be greatly improved, and further, the safety of personnel in the vehicle can be ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a perspective view of a novel road and bridge protection device in accordance with an embodiment of the present invention;

FIG. 2 is a partial cross-sectional view of a novel road and bridge protection device in accordance with an embodiment of the present invention;

FIG. 3 is a perspective view of a rolling guard post according to one embodiment of the present invention;

FIG. 4 is a cross-sectional view of a rolling guard post according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of the structure at A in FIG. 4 according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a structure B shown in FIG. 2 according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of the structure at C in FIG. 2 according to an embodiment of the present invention;

fig. 8 is a schematic diagram of the operation of the novel road and bridge protection device in an embodiment of the invention.

In the figure: 1. the safety protection device comprises a guardrail support, 101, a base, 102, guardrail columns, 103, a mounting cavity, 2, a protection cross rod connecting mechanism, 201, a first protection cross rod, 202, a second protection cross rod, 203, a connecting piece, 204, an air pipe, 205, a solar panel, 206, a charge and discharge controller, 3, a rolling type protection column, 301, a protection steel wire, 302, a bearing, 303, a cavity, 304, non-Newtonian fluid, 305, an air pipe branch, 306, a connecting pipe, 307, a protection air bag, 4, a collision quick trigger mechanism, 401, a shell, 402, an inner shell, 403, a filter, 404, a gas generating agent, 405, a vent hole, 406, an igniter, 407, a power supply, 408, a connecting line, 409, a trigger sensor, 410, a control chip, 5, a safety reminding mechanism, 501, a circuit board, 502, a lamp bead, 503, a protection cover, 504 and a lead.

Detailed Description

The present invention will be described in detail below with reference to embodiments shown in the drawings. The embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to the embodiments are included in the scope of the present invention.

The invention discloses a novel road and bridge protection device, which is shown in figures 1-8 and comprises a pair of guardrail supports 1, a protection cross rod connecting mechanism 2 for connecting the guardrail supports 1, a rolling type protection column 3 for protection, a collision rapid trigger mechanism 4 for collision prevention trigger and a safety reminding mechanism 5 for warning and reminding.

Referring to fig. 1-2, the guardrail support 1 includes a base 101 for mounting a guardrail upright 102 on a road, the base 101 can be mounted and connected with the road through screws, the base 101 is connected with the guardrail upright 102 for mounting a protective cross rod connecting mechanism 2, the protective cross rod connecting mechanism 2 is disposed between a pair of guardrail uprights 102, the protective cross rod connecting mechanism 2 includes a first protective cross rod 201 and a second protective cross rod 202, both the first protective cross rod 201 and the second protective cross rod 202 are used for mounting a rolling type protective column 3, and at the same time, the first protective cross rod 201 and the second protective cross rod 202 can also have a certain protective capacity, both the first protective cross rod 201 and the second protective cross rod 202 are made of high-quality low-carbon steel wire, the surfaces of the first protective cross rod 201 and the second protective cross rod 202 are provided with galvanized layers, so as to greatly reduce the probability that the first protective cross rod 201 and the second protective cross rod 202 are corroded, the connecting pieces 203 are connected between the first protective cross bar 201 and the guardrail upright post 102 and between the second protective cross bar 202 and the guardrail upright post 102 and used for installing and fixing the rolling type protective post 3, the connecting pieces 203 and the guardrail upright post 102 can be welded, screwed or screwed, preferably, in the invention, the connecting pieces 203 and the guardrail upright post 102 are welded and used for improving the connecting strength of the first protective cross bar 201 and the guardrail upright post 102 and the second protective cross bar 202, the gas conveying pipe 204 is arranged in the first protective cross bar 201 and communicated with the installation cavity 103 and used for conveying gas generated by the gas generating agent 404 under the action of the igniter 406 into the gas conveying branch pipe 305 through the gas conveying pipe 204 and further into the protective gas bag 307, so that the protective gas bag 307 can be rapidly expanded under the action of the gas.

Wherein, be connected with on the second protection horizontal pole 202 with roll formula protection column 3 assorted solar cell panel 205 for absorb solar energy, thereby can charge for power 407, make some firearm 406 and lamp pearl 502 need not external other powers at the during operation, thereby can the energy can be saved, install charge-discharge controller 206 in the second protection horizontal pole 202, an energy for conversion control solar cell panel 205 collects, a plurality of solar cell panels 205 all with charge-discharge controller 206 electric connection.

Referring to fig. 1 to 5, a plurality of rolling type protection posts 3 are rotatably connected between a first protection cross bar 201 and a second protection cross bar 202, the rolling type protection posts 3 are used for protecting, each rolling type protection post 3 comprises a protection steel wire 301, the protection steel wire 301 is made of an aluminum magnesium alloy wire and is used for improving the strength of the protection steel wire 301, bearings 302 are connected between the protection steel wire 301 and the first protection cross bar 201 and the second protection cross bar 202, when the protection steel wire 301 is collided by a vehicle, since the bearings 302 are rotatably connected between the protection steel wire 301 and the first protection cross bar 201 and the second protection cross bar 202, the protection steel wire 301 can rotate correspondingly when being collided, so that the collision vehicle can change collision points along the rotation of the protection steel wire 301, static collision is converted into dynamic collision and is used for buffering the collision force between the vehicle and the rolling type protection posts 3, the protective steel wire 301 is internally provided with a cavity 303, the cavity 303 is filled with non-Newtonian fluid 304, the principle of liquid flow rebound of the non-Newtonian fluid 304 is utilized, when the non-Newtonian fluid 304 is acted by force, the non-Newtonian fluid 304 is integrally hardened, so that the integral strength of the protective steel wire 301 can be improved, the protective steel wire 301 is prevented from being damaged by impact of large impact force, the anti-collision capability of the protective steel wire 301 can be greatly improved, an air delivery branch pipe 305 is inserted into the cavity 303, the air delivery branch pipe 305 is communicated with an air delivery pipe 204 through the protective steel wire 301 and a bearing 302, the gas in the air delivery pipe 204 can conveniently enter the air delivery branch pipe 305, the side wall of the air delivery branch 305 in the cavity 303 is connected with a plurality of uniformly distributed connecting pipes 306, the protective air bag 307 is communicated with the air delivery branch 305 through the connecting pipes 306, and the gas in the air delivery branch pipe 305 can conveniently and rapidly enter the protective air bag 307 through the connecting pipes 306, make protection gasbag 307 expand fast under gaseous effect, thereby make expanded protection gasbag 307 wrap up in protection steel wire 301's the outside, make protection steel wire 301 outside whole be rich in elasticity, be used for further buffering the vehicle to protection steel wire 301's striking dynamics, on the one hand, reduce the probability that protection steel wire 301 damaged by a wide margin, improve protection steel wire 301's crashworthiness, on the other hand can protect personnel's in the vehicle safety, protection steel wire 301's outside parcel has protection gasbag 307, be equipped with the relief valve in the protection gasbag 307, can automatic bleeding partial gas when the gas injection is excessive or the internal pressure of bag surpasss a definite value, avoid protection gasbag 307 because of the too much danger that explodes of injected gas.

Specifically, a sealing member is connected between the gas transmission branch pipe 305 and the protection steel wire 301, and the sealing member is made of rubber and used for sealing the non-Newtonian fluid 304 in the cavity 303 and avoiding leakage of the non-Newtonian fluid 304.

Referring to fig. 2-7, a collision quick trigger mechanism 4 is arranged in the guardrail upright post 102 and used for induction triggering, so that the protective airbag 307 can be quickly inflated, the collision quick trigger mechanism 4 is arranged in the installation cavity 103 and used for storing the collision quick trigger mechanism 4 and facilitating installation and use of the collision quick trigger mechanism 4, the collision quick trigger mechanism 4 comprises an outer shell 401 and an inner shell 402, the outer shell 401 and the inner shell 402 are assembled into a whole by a cold pressing process, a filter 403 is arranged between the outer shell 401 and the inner shell 402 and used for filtering a gas generating agent 404 and filter residues after reaction, so as to prevent the unreacted gas generating agent 404 from being discharged out of the outer shell 401 and avoid waste of the gas generating agent 404, the inner shell 402 is filled with the gas generating agent 404, the gas generating agent 404 is sodium azide, and at the moment when the igniter 406 detonates the gas generating agent 404, the gas generating agent 404 can generate a large amount of heat, the sodium azide is heated and immediately decomposed to release nitrogen, and is discharged from the vent hole 405, the sodium azide is filled into the protective air bag 307 through the air pipe 204, the air delivery branch pipe 305 and the connecting pipe 306, and the protective air bag is used for expanding the protective air bag 307, so that the collision force between a vehicle and the protective steel wire 301 can be greatly reduced, and the safety of personnel in the vehicle can be protected.

Referring to fig. 1-7, an igniter 406 is connected to the outer shell 401, the igniter 406 is disposed inside the inner shell 402 through the outer shell 401, the igniter 406 is wrapped with aluminum foil and is mounted in a central position inside the outer shell 401, when expansion occurs, the igniter 406 operates to enable the gas generating agent 404 to rapidly generate gas under the action of the igniter 406 to enable the protective airbag 307 to expand, a power supply 407 is disposed inside the guardrail post 102 and is used for providing an electric power function for the operation of the igniter 406, a connecting wire 408 is connected between the power supply 407 and the igniter 406 and is used for carrying out electric power transmission, a trigger sensor 409 and a control chip 410 are mounted on the guardrail post 102, the trigger sensor 409 is electrically connected with the control chip 410, the trigger sensor 409 is used for monitoring the impact strength, when the impact strength exceeds a value set by the trigger sensor 409, the igniter 406 starts to operate, and the control chip 410 is used for controlling the operation of the igniter 406, the control chip 410 mainly includes an SRS logic module, a signal processing circuit, a standby power circuit, a protection circuit, and a voltage stabilizing circuit, and the control chip 410 is electrically connected to the charge/discharge controller 206 and the power supply 407, respectively.

Referring to fig. 3-7, safety warning mechanism 5 is arranged outside protective air bag 307, and is used for playing a warning role and warning drivers of vehicles, safety warning mechanism 5 includes circuit board 501, a plurality of uniformly distributed lamp beads 502 are connected to circuit board 501, lamp beads 502 can emit light under the effect of charge and discharge controller 206, protective cover 503 is arranged on one side of lamp beads 502 far away from circuit board 501, and is used for protecting lamp beads 502, lamp beads 502 are made of transparent material, light beams emitted by lamp beads 502 can pass through conveniently, and are used for warning and warning drivers, protective cover 503 is connected with protective air bag 307, wire 504 is connected between circuit board 501 and charge and discharge controller 206, and protective cover 503 can emit light through the control of charge and discharge controller 206.

When the automobile anti-collision device is used specifically, when an automobile collides with the rolling type protective column 3 in a launching mode, and the collision force is smaller than the set value of the trigger sensor 409, the igniter 406 does not work, the automobile is in contact with the protective air bag 307 on the protective steel wire 301, and the protective steel wire 301 can rotate under the action of the bearing 302, so that static collision can be changed into dynamic collision, and the collision force between the automobile and the rolling type protective column 3 is buffered through energy conversion; when the impact force is greater than the value set by the trigger sensor 409, the trigger sensor 409 sends an impact signal to the control chip 410, the control chip 410 controls the igniter 406 to immediately start working, when the igniter 406 works, the gas generating agent 404 immediately releases a large amount of gas under the action of the igniter 406, the gas enters the protective airbag 307 through the capillary holes, the vent holes 405, the gas pipe 204, the gas branch pipe 305 and the connecting pipe 306, so that the protective airbag 307 rapidly expands under the action of the gas and wraps the outer side of the protective steel wire 301, the overall elasticity of the protective steel wire 301 can be improved, the impact force can be further buffered, meanwhile, the impact force is buffered by matching with the rotation of the protective steel wire 301, the impact force between the vehicle and the rolling type protective column 3 is minimized, the capacity of the rolling type protective column 3 can be improved, and the safety of personnel in the vehicle can be protected to the maximum extent, the specific workflow is shown in fig. 8.

According to the technical scheme, the invention has the following beneficial effects:

according to the invention, through the arrangement of the corresponding mechanisms on the guardrail, when a vehicle collides with the guardrail, the collision point between the vehicle and the guardrail can be changed, so that static collision is changed into dynamic collision, the collision force is buffered through energy conversion, and the probability of deformation of the guardrail when the guardrail bears the collision is greatly reduced, so that the collision avoidance capability of the guardrail can be greatly improved, and further, the safety of personnel in the vehicle can be ensured.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.