CN113216051A

CN113216051A - Highway traffic safety device

Info

Publication number: CN113216051A
Application number: CN202110633134.7A
Authority: CN
Inventors: 邱兵; 刘帮权
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2021-08-06

Abstract

The invention discloses a road traffic safety protection device, which can reduce the damage to the head part of a vehicle after the vehicle impacts a guardrail to a certain extent by arranging the inner side surface of the guardrail into an arc shape and matching with the surface of the head of a common vehicle; when a vehicle collides with the guardrail, the telescopic rod drives the guardrail to move towards the outer side of the road, so that the impact of the vehicle is buffered, and the threat to the safety of personnel in the vehicle is effectively reduced; by arranging the protective guard into a frame structure, the situation that a driver is easy to fatigue and traffic accidents are caused due to the fact that the winding road is bent and coiled and a closed baffle is arranged can be reduced; through setting up the mode that walking wheel pair telescopic link carries out the segmentation support, can guarantee that the telescopic link can stretch out and draw back smoothly at flexible intracavity, avoid producing the back that warp when the tip pressurized of telescopic link, the telescopic link can't continue the roll-off to cause the dead phenomenon of telescopic link card.

Description

Highway traffic safety device

Technical Field

The invention belongs to the technical field of winding mountain highway safety protection facilities, and particularly relates to a highway traffic safety protection device.

Background

Along with the continuous acceleration of the global economy integration process, the quantity of automobiles in China is continuously increased, the road construction in China is more perfect, and the problem of how to improve the safety of the road construction is solved while the road construction is perfect, particularly, the construction of the mountain road is completed, the mountain road slope is steep and acute, and the automobiles are destroyed and the people are killed once the automobiles rush out of the road carelessly, so that the road protection is necessary, and the existing protective measures are usually additionally provided with protective guards; the existing guard rail is generally a guard rail formed by mutually connecting a plurality of columnar bodies buried at the curve position of a winding road, but the applicant finds that the existing guard rail has great damage to the head part of a vehicle and great possibility of threatening the life safety of people in the vehicle.

In view of this, the present application is specifically made.

Disclosure of Invention

The invention aims to provide a road traffic safety protection device which can effectively reduce the damage degree of a vehicle head when a vehicle on a winding road turns and collides with a guardrail, and improve the safety of personnel in the vehicle to a certain degree.

The invention is realized by the following technical scheme: the utility model provides a highway traffic safety device, includes the guardrail, the guardrail has the arc structure, and the medial surface of guardrail sets up outside sunken, the medial surface of guardrail cooperatees with the shape of locomotive, the bottom of guardrail is connected with the telescopic link, the telescopic link can be inserted in the holding in situ on highway road surface, when the guardrail received the striking, the telescopic link can stretch out to the highway lateral surface, the one end that the telescopic link is located the highway is provided with the stopper, be provided with limit stop in the holding layer, the cover is equipped with the spring on the telescopic link, the spring is located between stopper and the limit stop. The existing protection device usually adopts a plurality of columnar bodies, and each columnar body is connected through a connecting rod or a connecting plate and the like, in the actual use process, particularly when the vehicle runs on a mountain winding road, the situation of the vehicle impacting the protection device is generally the road condition of a curve, and when the vehicle impacts the protection device, because the surface of the vehicle head is generally a cambered surface, when the vehicle head impacts the columnar bodies, the vehicle head is in line contact with the columnar bodies, and because the impact force of the vehicle on the columnar bodies is larger during the impact, and the contact surface of the vehicle head and the columnar bodies is smaller, the pressure generated by the columnar bodies to the vehicle head is larger, the vehicle head is more easily dented by the impact, so that the damage degree of the vehicle head is very large, namely, the danger degree of personnel in the vehicle is higher, and the life is dangerous and safe. Therefore, the applicant provides a road traffic safety protection device, which can reduce the damage of a vehicle head when a vehicle collides with a protection device, and reduce the injury of the vehicle collision protection device to personnel in the vehicle as much as possible, and the specific implementation mode is as follows:

set up to the arc of outside sunken through the inboard with the guardrail, and the medial surface of guardrail and the surface cooperation of ordinary car locomotive, promptly after the vehicle collides with the guardrail, the area of contact of locomotive and guardrail increases substantially, under the certain degree of impact force to the guardrail, because area of contact increases, the pressure that the locomotive received reduces substantially, that is to say, the damage degree that receives after the locomotive striking can obviously descend, personnel's security just also risees thereupon in the vehicle promptly, therefore this scheme can effectively reduce the damage degree of locomotive, alleviate the danger degree, the main technical problem that this scheme will be solved has been overcome to a certain extent. Later, after research, the applicant finds that the guardrail with the arc-shaped side face can effectively reduce damage to the vehicle head, but because the vehicle impacts the guardrail greatly, the danger of personnel in the vehicle cannot be reduced obviously, so that the applicant makes further improvement: the road protection device is characterized by comprising an accommodating layer, a telescopic rod and a guardrail, wherein the accommodating layer is arranged in a road close to the side surface of a road surface and is of an integrally formed structure with the road bed, the telescopic rod is arranged in the accommodating layer, the telescopic rod is sleeved with a spring, one end provided with the spring is arranged in the road, the telescopic rod is inserted into a telescopic cavity of the accommodating layer, and one end of the telescopic rod, which is arranged outside the road, is fixedly connected with the bottom end of the guardrail; in the in-service use process, when the vehicle went on the mountain winding highway, the vehicle was strikeed easily and is set up on the guardrail at highway edge, and guardrail and ground in this scheme or highway roadside are non-fixed state, current guardrail is fixed the setting, be the rigidity striking when the vehicle strikeed the guardrail, then the damage to the vehicle after the striking is great, and after this scheme of adoption, when vehicle striking guardrail, the telescopic link stretches out, the spring was compressed this moment, the vehicle is flexible striking to the striking of guardrail in this scheme, can play certain cushioning effect, with the striking damage that alleviates the vehicle, the improvement security performance that can further go forward. In addition, the applicant also finds that the existing guardrail and the road are generally of a split structure, so that a vehicle is likely to crash the guardrail when the guardrail is buried in the ground to a depth or is not firm enough, and particularly on a mountain winding road, the vehicle rushes out of the guardrail and falls into valleys, so that the problem that the vehicle crashes into the guardrail and falls into the valleys can be effectively solved by arranging the guardrail and the road into an integrated structure, the guardrail in the scheme can extend to the side edge of the road in the impacting process, the head of the crashed vehicle is in contact with the inner side of the guardrail, and due to the inertia effect in turning, the head of the vehicle collides with the guardrail, after the vehicle body rotates, the side surface of the vehicle body is also in contact with the inner side of the guardrail, and at the time, because the telescopic rod is in an extending state after being impacted, the wheel body of the vehicle is generally positioned above the telescopic rod, the telescopic rod plays a role in supporting the vehicle, so that the vehicle can be prevented from falling into a valley, and when an accident vehicle is positioned on the telescopic rod, the accident vehicle and the road surface have no barrier effect; it will be appreciated by those skilled in the art that on a winding road, especially on a curved road section, if an accident vehicle that has hit a guardrail has occurred ahead, the accident vehicle is still located on the road surface, when the next vehicle passes through the same curved road section, the response speed of the driver is slow, or when a certain blind area just exists, the new vehicle easily hits the accident vehicle ahead, which may cause a link traffic accident; therefore, the scheme can also avoid the occurrence of the interlinked accidents on the mountain winding road.

Furthermore, a connecting part is arranged at one end of the telescopic rod, which is positioned outside the accommodating layer, and comprises a vertical connecting block, a transverse connecting block and a vertical clamping block, the vertical connecting block is connected with the upper surface of the end part of the telescopic rod, one end of the transverse connecting block is connected with the top end of the vertical connecting block, the other end of the transverse connecting block is connected with the vertical clamping block, and the transverse connecting block is positioned at the upper side of the telescopic rod; the bottom end of the guardrail is provided with a vertical part, a transverse part and a clamping part, the vertical part, the transverse part and the clamping part are connected to form a connecting cavity, the transverse connecting block and the vertical clamping block can be placed into the connecting cavity, and the clamping part can be inserted between the vertical clamping block and the vertical connecting block and forms matching; threaded holes are formed in the vertical portion and the transverse connecting block, and the threaded holes sequentially penetrate through the vertical portion and the transverse connecting block through screws to fix the connecting portion and the guardrail. In the in-service use, when the locomotive hit the guardrail inboard, owing to form the thrust to the side to the guardrail, the joint portion and the horizontal portion that the bottom of guardrail set up and the contact of the vertical connecting block of telescopic link tip, horizontal connecting block and vertical fixture block are inseparabler, can utilize the locomotive to make the guardrail be inseparabler with being connected of telescopic link to the thrust effect of guardrail, have made unexpected effect.

Specifically, be provided with flexible chamber in the holding layer, be provided with limit stop in the flexible chamber, be provided with the cushion in the flexible intracavity, the cushion sets up the one side that is located the highway side at limit stop, the cushion is used for supporting the telescopic link, the telescopic link is located the inboard of dog and is equipped with a plurality of slip subassemblies by the cover, the slip subassembly includes the lantern ring and takes turns, all overlaps between every lantern ring to be equipped with the spring, the walking wheel is used for supporting the bracing piece, the axis that the bracing piece can be followed at the surface of bracing piece to the lantern ring slides. In the research process, the applicant finds that if the telescopic rod is directly matched with the sliding cavity, the telescopic rod can slide in the sliding cavity, and the clamping condition is easily caused by the matching mode of the outer surface of the telescopic rod and the inner surface of the sliding cavity; when the gravity of the vehicle is impacted on the guardrail, the gravity is supported by the extending telescopic rod, the end part of the telescopic rod is likely to be slightly deformed and bent after bearing pressure, and if the outer surface of the telescopic rod is tightly contacted with the inner surface of the sliding cavity, the phenomenon of blocking can be easily caused; consequently this scheme will slide the chamber and increase to adopt the walking wheel to support the telescopic link, the area of contact in action wheel and slip chamber is little, and frictional force is little, therefore the telescopic link slides in sliding the chamber more easily, can effectively avoid the dead problem of card.

Preferably, the telescopic support rod further comprises a telescopic support rod, a support rod inner cavity is formed in the telescopic support rod, a plurality of limiting bulges are arranged in the support rod inner cavity, the limiting bulges are uniformly distributed at intervals along the length direction of the telescopic support rod, a telescopic ruler can be inserted into the support rod inner cavity, matching bulges are arranged on the telescopic ruler, and the matching bulges can be matched with the limiting bulges to realize the length fixation of the telescopic support rod; one end of the telescopic supporting rod is hinged with the extending part on the outer side of the highway subgrade, and the other end of the telescopic supporting rod is hinged with one end, located outside the containing layer, of the telescopic rod. This scheme is in the in-service use in-process, and when the guardrail was hit, the telescopic link was stretched out, and the telescopic ruler in the telescopic branch stretches out from the branch inner chamber gradually, and when the guardrail was promoted to extreme position, the cooperation arch on the telescopic ruler and the spacing protruding cooperation in the branch inner chamber and the length of telescopic branch were fixed, and telescopic branch played certain supporting role to the bracing piece this moment.

Preferably, the guardrail comprises a plurality of strip-shaped plate bodies arranged vertically and horizontally, the overlapping positions of the strip-shaped plate bodies are respectively connected and fixed, and a rectangular channel is formed on the guardrail; the applicant finds that when the driver drives on the winding highway, if the guardrail is set to be in a closed shape, a depression feeling can be given to the driver, and the driver is easy to fatigue after driving in the environment for a long time, so that the scheme adopts a frame structure with strip-shaped plate bodies staggered vertically and horizontally, the driver can observe the surrounding environment, the driver can feel the change of the surrounding environment, the driver can be kept clear, and the condition of traffic accidents caused by fatigue of the driver can be reduced; the accommodating layer and the highway subgrade are of an integrally formed structure, and the highway subgrade is positioned in the highway subgrade; the inner wall of the inlet of the conventional telescopic cavity with a buffer device is provided with bristles, and the bristles are used for preventing impurities outside a road from entering the inside of the telescopic cavity. Set up the brush hair can prevent matters such as the outside impurity of highway from entering into flexible intracavity, avoids causing flexible chamber to block up the scheduling problem, can prolong this scheme protector's life.

Preferably, the roller protective guard is arranged at the edge of the highway subgrade and is arranged at the inner side of the guardrail, and the length of the roller protective guard is smaller than that of the guardrail. In the research process, the applicant finds that if the roller protective guard is arranged at the position of a curve of a road on a disc, after a vehicle impacts the roller protective guard, the roller protective guard can perform a good buffering effect on the vehicle, impact perpendicular to the roller anti-skid guard is converted into kinetic energy rotating in the direction parallel to the direction of the roller, the impact force of the vehicle is effectively decomposed, and the vehicle still stays above a road bed after being impacted, occupies the position of the curve and affects traffic. According to the scheme, the roller protective guard is arranged on the inner side of the guardrail, and the installation area of the roller protective guard is positioned on the inner side of the guardrail position which is most easily impacted, so that the vehicle is prevented from directly impacting the guardrail; after the roller guard rail is installed, the guard rail plays a role of two-layer protection; in the specific use process: when a vehicle collides with the roller guard rail, the roller guard rail has a buffer effect and an elastic effect on the vehicle due to certain elasticity of a roller material, the roller guard rail partially recesses the roller guard rail after the vehicle head contacts with the roller, the vehicle head is guided to rotate by the roller, and the vehicle head begins to separate from the roller guard rail after the vehicle body contacts with the roller guard rail; if the roller guard fence is short, since the roller guard fence is a winding mountain road, the outer side of the road is usually a cliff or a valley, and vehicles can fall into the cliff or the valley, so that major casualties are caused; therefore, the guardrail is arranged on the outer side of the roller guardrail, after a vehicle impacts the roller guardrail, the vehicle is guided by the roller guardrail, and when the vehicle impacts the guardrail, the force impacting the guardrail is partially decomposed by the roller guardrail, so that the impact force on the guardrail is relatively small, the telescopic rod extends out after the guardrail is impacted, most of the body of the vehicle or the whole body of the vehicle can run above the telescopic rod, and the telescopic rod plays a role in supporting the vehicle; the spring in the telescopic cavity plays a role in buffering the impact of the vehicle on the guardrail; the telescopic supporting rod utilizes the friction action between the limiting bulge and the matching bulge on the telescopic ruler; the movement buffering is carried out by matching with the blocking effect of the protrusions on the limiting protrusions; the damage to the vehicle body due to the impact is reduced.

Furthermore, a first-stage roller and a second-stage roller are arranged on the roller protective guard, and the first-stage roller protrudes towards the direction of the highway subgrade relative to the second-stage roller. The applicant finds that the rollers on the existing roller guard rail are all arranged on the same plane, that is, at the moment when a vehicle impacts the roller guard rail, the vehicle head contacts with the rollers on the impacted area on the roller guard rail; the buffering effect is not good though the vehicle head is buffered by a plurality of groups of rollers at the same time; the applicant has therefore made improvements to the above-mentioned problems; dividing the rollers into two groups, wherein one group is a primary roller, the other group is a secondary roller, and each group of rollers are sleeved on the same rotating shaft and are connected in series from top to bottom; the position of a rotating shaft of the first-stage roller is closer to one side of the highway subgrade; that is, the first-stage roller protrudes in the direction of the highway subgrade relative to the second-stage roller; in the practical implementation process, when a vehicle collides with the roller guard railing, the vehicle head contacts with the surface of the primary roller before the primary roller, the primary roller is made of flexible materials and has a certain buffering effect, and after the vehicle head collides with the primary roller, the collided part of the roller guard railing protrudes to the outer side of the highway subgrade; that is to say, the locomotive pushes or extrudes the primary roller to the outer side of the highway subgrade, at the moment, after the roller guard rail deforms, the surface of the secondary roller contacts with the locomotive, and at the moment, the secondary roller and the primary roller simultaneously play a role in buffering the locomotive; the multi-stage buffer can be carried out on the impact moment of the vehicle, and the buffer effect can be effectively enhanced; the first-stage roller and the second-stage roller are arranged in a staggered manner; the two ends of the roller guard railing are both secondary rollers, and the secondary rollers are closer to the outer side of the highway subgrade, namely, if the side face of the vehicle body and the roller guard railing move closely for a certain distance after the vehicle is collided, the roller guard railing has a guiding function of guiding the advancing direction of the vehicle towards the outer side of the highway subgrade; after the collided vehicle moves to collide with the guardrail, the collided vehicle stops above the telescopic rod of the guardrail.

Compared with the prior art, the invention has the following advantages and beneficial effects:

1. according to the invention, the inner side surface of the guardrail is arc-shaped and is matched with the surface of the head of a common vehicle, so that the damage to the head of the vehicle after the vehicle impacts the guardrail can be reduced to a certain extent; and set up the holding chamber in highway inside, the holding intracavity is provided with the telescopic link, and when the vehicle struck the guardrail, the telescopic link drove the guardrail and moves to the outside of highway, plays the cushioning effect to the impact of vehicle to effectively alleviate the threat to personnel's in the vehicle safety.

2. According to the invention, the guardrail is of a frame structure, so that the condition that a driver is easy to fatigue and traffic accidents are caused due to the fact that the winding road is bent and coiled and the closed baffle is arranged can be reduced.

3. According to the invention, the telescopic rod can be ensured to be smoothly stretched in the stretching cavity by arranging the walking wheel to support the telescopic rod in a segmented manner, and the phenomenon that the telescopic rod is blocked due to the fact that the telescopic rod cannot continuously slide out after the end part of the telescopic rod is pressed to deform is avoided.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

FIG. 1 is a schematic side view of the structure of the present invention, in its natural state, wherein the view is a cross-sectional view taken along line B-B of FIG. 6;

FIG. 2 is a schematic side view of the structure of the present invention, wherein the guardrail is in an impacted condition, wherein the view is a cross-sectional view taken at B-B of FIG. 6;

FIG. 3 is a structural elevation view of the present invention;

FIG. 4 is a schematic structural view of the support rod;

FIG. 5 is an enlarged view of a portion of FIG. 1 at A;

FIG. 6 is a schematic view of the installation of the guard rail and the roller guard rail;

fig. 7 is a schematic structural view of a roller guard rail;

fig. 8 is a top view of the roller guard rail.

Reference numbers and corresponding part names in the drawings:

1-a guardrail; 11-a vertical portion; 12-a transverse portion; 13-a clamping part; 2-an accommodating layer; 3-highway subgrade; 4-anchor rod; 5-a telescopic cavity; 51-a limiting block; 52-road wheels; 53-a spring; 54-a telescopic rod; 541-a connecting part; 5411-vertical connecting block; 5412-transverse connection block; 5413-vertical dog; 55-limit stop; 6-brush hair; 7-telescopic supporting rod; 71-strut lumen; 72-a limit protrusion; 721-bumps; 73-a first articulation lever; 74-a telescopic ruler; 741-a cartridge; 75-a second hinge lever; 8-a screw; 9-highway subgrade; 10-roller guard rail; 101-a secondary drum; 102-primary drum.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.

Example 1:

as shown in fig. 1 to 5, a road traffic safety guard device includes: the guardrail comprises a guardrail 1, wherein the guardrail 1 is formed by connecting a transverse strip plate body and a vertical strip plate body, a plurality of rectangular windows which can facilitate a driver to observe the external environment of a highway are formed, the guardrail 1 is arc-shaped when viewed from the side, the central position of the guardrail 1 in the vertical direction protrudes towards the direction of the outer side of the highway, and the contact area between the inner side of the guardrail 1 and the head of a common vehicle is large; the bottom end of the guardrail 1 is connected with a connecting part 541 at one end of the telescopic rod 54 outside the accommodating cavity; referring to fig. 5, the connecting portion 541 includes a vertical connecting block 5411, a horizontal connecting block 5412 and a vertical clamping block 5413, the bottom end of the vertical connecting block 5411 is fixedly connected to the top surface of the end portion of the telescopic rod 54, one end of the horizontal connecting block 5412 is connected to the top end of the vertical connecting block 5411, the other end of the horizontal connecting block 5412 is connected to the top end of the vertical clamping block 5413, the vertical clamping block 5413 is vertically arranged, and the height of the vertical clamping block 5413 is smaller than the height of the vertical connecting block 5411, so that a space exists between the vertical clamping block 5413 and the top surface of the telescopic rod 54; the bottom end of the guardrail 1 is provided with a connecting part 541, a transverse part 12 and a clamping part 13, the connecting part 541 is a vertical block, the transverse part 12 is a block arranged transversely, the clamping part 13 is a block arranged vertically, one end of the transverse part 12 is connected with the bottom end of the clamping part 13, the other end of the transverse part 12 is connected with the bottom end of the vertical part 11, when the top end of the vertical part 11 is connected with the bottom end of the guardrail 1, the transverse part 12 can be inserted between a vertical clamping block 5413 and the top surface of the telescopic rod 54, and the clamping part 13 can be inserted between a vertical connecting block 5411 and the vertical clamping block 5413, so that the guardrail 1 and the telescopic rod 54 are connected and fixed; the stability of the connection of the guard rail 1 with the telescopic bar 54 can be further ensured by inserting the screws 8 into the lateral connection blocks 5412 from the top of the vertical portion 11 in order from the inside of the guard rail 1, respectively.

Referring to fig. 1 and 2, the telescopic rod 54 is inserted into the telescopic cavity 5 of the accommodating cavity, the telescopic cavity 5 is partitioned by a limit stop 55, the telescopic rod 54 is inserted into a through hole of the limit stop 55, the telescopic cavity 5 is located at one end of the inner side of the limit stop 55 and is provided with a plurality of traveling wheels 52, the traveling wheels 52 are rotatably connected with lantern rings, the lantern rings are sleeved on the telescopic rod 54, a spring 53 is arranged between the lantern rings, the spring 53 is sleeved on the outer surface of the telescopic rod 54, one end of the telescopic rod 54 located inside the highway subgrade 3 is provided with a limit block 51, the limit stop 55 and the traveling wheels 52 move to play a limiting role, the length of the telescopic rod 54 extending out of the highway can be limited, a groove is arranged below the limit stop 55 towards one side where the traveling wheels 52 are located, and the outer surface of the traveling wheels 52 is matched with the groove, the problem that the limit stop 55 is broken due to over-high pressure can be avoided; a cushion block is arranged on one side of the limit stop 55 away from the walking wheel 52, is positioned below the telescopic rod 54 and is used for supporting the telescopic rod 54; the inner side of the inlet of the telescopic cavity 5 is provided with bristles 6 for preventing impurities or other substances from entering the telescopic cavity 5; the below in holding chamber is provided with highway subgrade 3, the stock 4 is inserted in the highway subgrade 3, through stock 4 makes highway subgrade 3 or highway subgrade 3 and ground firm in connection.

Referring to fig. 4, the telescopic strut 7 in fig. 4 comprises a strut inner cavity 71 and a telescopic ruler 74, the telescopic ruler 74 can be inserted into the strut inner cavity 71 and slide along the length direction of the strut inner cavity 71, and the minimum width of the strut inner cavity 71 is greater than the maximum width of the telescopic ruler 74; the telescopic rod 54 is extended out and drives the telescopic rod 74 to extend to the limit, the telescopic rod 54 is inevitably bent and deformed downwards, the lower end part of the telescopic rod 74 is pressed to tilt upwards at the moment, namely the lower part of the telescopic rod 74 is contacted with the edge of an inlet of the strut inner cavity 71, the upper surface of the telescopic rod 74 is contacted with the upper surface of the strut inner cavity 71, the matching bulge has a blocking effect on the limiting bulge 72, and the tail end of the telescopic rod 74 is provided with a clamping block 741; a bump 721 is arranged on the inner wall of the opening of the strut inner cavity 71, and the bump 721 obstructs the fixture 741 from separating from the strut inner cavity 71; the telescopic ruler 74 will not automatically retract into the inner cavity 71 of the pole after extending, and the telescopic pole 7 can play a certain supporting role for the telescopic pole 54.

Referring to fig. 6 and 7, the roller guard rail 10 is disposed at the edge of the highway base 3, the roller guard rail 10 is disposed at the inner side of the guard rail 1, and the length of the roller guard rail 10 is less than that of the guard rail 1. The roller guard rail 10 is provided with a primary roller 102 and a secondary roller 101, the primary roller 102 protrudes towards the highway subgrade 3 relative to the secondary roller 101, and the applicant researches and discovers that if a vehicle head impact point is on the secondary roller 101, at the impact moment, the secondary roller 101 converts the impact force into the kinetic energy of the rotation of the secondary roller 101, and guides the vehicle head to rotate towards the tangential direction of the secondary roller 101 and advance under the inertia condition; at the moment, the primary roller 102 protrudes out of the secondary roller 101, namely, the vehicle firstly impacts the secondary roller 101 and then contacts the primary roller 102, so that the multistage buffering effect can be achieved; after the second-stage roller 101 is impacted firstly, the first-stage roller 101 guides the vehicle head to the inner side direction of the highway subgrade, so that the vehicle can be prevented from rushing out of the highway, the vehicle can be prevented from colliding with the guardrail 1, and the guardrail 1 plays a role when the vehicle rushes out of the highway.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a highway traffic safety device, includes guardrail (1), its characterized in that: guardrail (1) has the arc structure, and the medial surface of guardrail (1) sets up outside sunken, the medial surface of guardrail (1) cooperatees with the shape of locomotive, the bottom of guardrail (1) is connected with telescopic link (54), telescopic link (54) can insert in holding layer (2) on highway road surface, when guardrail (1) received the striking, telescopic link (54) can stretch out to the highway lateral surface, the one end that telescopic link (54) are located the highway is provided with stopper (51), be provided with limit stop (55) in holding layer (2), the cover is equipped with spring (53) on telescopic link (54), spring (53) are located between stopper (51) and limit stop (55).

2. A road traffic safety guard according to claim 1, characterised in that: one end, located outside the accommodating layer (2), of the telescopic rod (54) is provided with a connecting portion (541), the connecting portion (541) comprises a vertical connecting block (5411), a transverse connecting block (5412) and a vertical clamping block (5413), the vertical connecting block (5411) is connected with the upper surface of the end portion of the telescopic rod (54), one end of the transverse connecting block (5412) is connected with the top end of the vertical connecting block (5411), the other end of the transverse connecting block is connected with the vertical clamping block (5413), and the transverse connecting block (5412) is located on the upper side of the telescopic rod (54); the bottom end of the guardrail (1) is provided with a vertical part (11), a transverse part (12) and a clamping part (13), the vertical part (11), the transverse part (12) and the clamping part (13) are connected to form a connecting cavity, the transverse connecting block (5412) and the vertical clamping block (5413) can be placed into the connecting cavity, and the clamping part (13) can be inserted between the vertical clamping block (5413) and the vertical connecting block (5411) and is matched with the vertical connecting block; threaded holes are formed in the vertical portion (11) and the transverse connecting block (5412), and a screw (8) penetrates through the threaded holes in the vertical portion (11) and the transverse connecting block (5412) in sequence to fix the connecting portion (541) and the guardrail (1).

3. A road traffic safety guard according to claim 2, characterised in that: be provided with flexible chamber (5) in holding layer (2), be provided with limit stop (55) in flexible chamber (5), be provided with the cushion in flexible chamber (5), the cushion sets up the one side that is located the highway side at limit stop (55), the cushion is used for supporting telescopic link (54), telescopic link (54) are located the inboard of dog and are equipped with a plurality of slip subassemblies, the slip subassembly includes the lantern ring and walks and takes turns (52), all overlaps between every lantern ring to be equipped with spring (53), it is used for supporting to walk to take turns (52) the bracing piece, the lantern ring can slide along the axis of bracing piece at the surface of bracing piece.

4. A road traffic safety guard according to claim 1, characterised in that: the telescopic support rod structure is characterized by further comprising a telescopic support rod (7), a support rod inner cavity (71) is formed in the telescopic support rod (7), a plurality of limiting bulges (72) are arranged in the support rod inner cavity (71), the limiting bulges (72) are uniformly distributed at intervals along the length direction of the telescopic support rod (7), a telescopic ruler (74) can be inserted into the support rod inner cavity (71), matching bulges are arranged on the telescopic ruler (74), and the matching bulges can be matched with the limiting bulges (72) to realize the length fixation of the telescopic support rod (7); one end of the telescopic support rod (7) is hinged with the extending part on the outer side of the highway subgrade (3), and the other end of the telescopic support rod is hinged with one end of the telescopic rod (54) positioned outside the accommodating layer (2).

5. A road traffic safety guard according to any one of claims 1 to 4, characterised in that: the guardrail comprises a guardrail body (1) and is characterized in that the guardrail body (1) comprises a plurality of strip-shaped plate bodies which are vertically and horizontally arranged, the overlapping positions of the strip-shaped plate bodies are respectively connected and fixed, and a rectangular channel is formed in the guardrail (1).

6. A road traffic safety guard according to claim 5, characterised in that: the accommodating layer (2) and the highway subgrade (3) are of an integrally formed structure.

7. A road traffic safety guard according to claim 5, characterised in that: the inner wall of the entrance of the telescopic cavity (5) is provided with bristles (6), and the bristles (6) are used for preventing impurities outside a road from entering the telescopic cavity (5).

8. A road traffic safety guard according to claim 1, characterised in that: the road guardrail structure is characterized by further comprising a roller guardrail (10) arranged at the edge of the highway subgrade (3), wherein the roller guardrail (10) is arranged on the inner side of the guardrail (1), and the length of the roller guardrail (10) is smaller than that of the guardrail (1).

9. A road traffic safety guard according to claim 8, characterised in that: the roller guard rail (10) is provided with a primary roller (102) and a secondary roller (101), and the primary roller (102) protrudes towards the direction of the highway subgrade (3) relative to the secondary roller (101).