KR20120136260A - A apparatus for vehicle-impact absorbing of guide rail - Google Patents

A apparatus for vehicle-impact absorbing of guide rail Download PDF

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Publication number
KR20120136260A
KR20120136260A KR1020110055853A KR20110055853A KR20120136260A KR 20120136260 A KR20120136260 A KR 20120136260A KR 1020110055853 A KR1020110055853 A KR 1020110055853A KR 20110055853 A KR20110055853 A KR 20110055853A KR 20120136260 A KR20120136260 A KR 20120136260A
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KR
South Korea
Prior art keywords
support
guide
guide rail
plate
coupling plate
Prior art date
Application number
KR1020110055853A
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Korean (ko)
Inventor
정석원
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정석원
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Publication date
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Priority to KR1020110055853A priority Critical patent/KR20120136260A/en
Publication of KR20120136260A publication Critical patent/KR20120136260A/en

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/02—Continuous barriers extending along roads or between traffic lanes
    • E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
    • E01F15/0407—Metal rails
    • E01F15/0423—Details of rails
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/02—Continuous barriers extending along roads or between traffic lanes
    • E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
    • E01F15/0407—Metal rails
    • E01F15/0438—Spacers between rails and posts, e.g. energy-absorbing means

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Vibration Dampers (AREA)

Abstract

PURPOSE: A shock absorbing apparatus for guide rail is provided to enable a vehicle to absorb the impact from the guide rail in a car collision, to minimize the generation of the damage of human life, and to facilitate the set-up with the replacement of a damaged vehicle. CONSTITUTION: A shock absorbing apparatus for guide rail(100) comprises a coupling plate(110), a supporting plate(130), an elastic component(150), and multiple connection pins(170). The coupling plate is combined in the side of the guide component(210) of a guide rail(200). The supporting plate combined with the support stand(230) of the guide rail to be opposite to the coupling plate supports the coupling plate in a row. The elastic component inserted between the coupling plate and the supporting plate has elastic force, wherein a vehicle absorbs the impact from the guide component in collision. The connection pin supports the elastic component, and combines the guide component with support stand by connecting the coupling plate to the supporting plate.

Description

Guide rail shock absorber {a apparatus for vehicle-impact absorbing of guide rail}

The present invention relates to a guide rail shock absorbing device which is installed on a guide rail to prevent the departure of the vehicle off the driving lane to absorb the shock when the vehicle collides with the guide rail.

In general, the guide rail is a device that is installed in the center of the road or along the road to prevent collision with oncoming vehicles or to prevent accidents caused by the vehicle leaving the driving lane.

The guide rail is composed of a plurality of supports fixed to the floor so as to be spaced apart from each other and a guide member installed to connect the side of the plurality of supports to each other. This prevents the vehicle from escaping from the road and at the same time mitigates the impact of the vehicle, minimizing human injury.

On the other hand, the guide rail is installed on the road side guide member is installed only on one side of the support, the guide rail is installed in the center of the road guide members are installed on both sides of the support, the guide member is in the shape of a plate with a longitudinal cross section It is formed to have a rigidity.

However, the conventional guide rail can perform the function of the guide rail when the vehicle collides at a low speed, but when the vehicle collides at a high speed, the shock absorption is insignificant, causing great casualties, and all the shocks are transmitted to the guide member. There was a problem in that the member is not easily broken and a second accident occurs such that the guide rail does not function properly.

The present invention is to solve the problems as described above, the problem to be solved by the present invention is to minimize the occurrence of human injury by absorbing the impact when the vehicle hits the guide rail, it is easy to replace and install when broken And, to provide a low cost guide rail shock absorbing device.

Guide rail shock absorbing device according to an embodiment of the present invention for solving the above problems is a plurality of supports installed to be spaced apart from each other along the road, the guide member for preventing the departure of the vehicle by connecting the side of the plurality of supports A guide rail shock absorbing device which is inserted between the guide member and each of the support in the guide rail including a shock absorber of the vehicle, the coupling plate is coupled to the side of the guide member, facing each other in parallel with the coupling plate And a support plate provided on the support, an elastic member inserted between the coupling plate and the support plate, and a plurality of connection pins supporting the elastic member and connecting the coupling plate and the support plate.

One end of the connection pin is fixed to the coupling plate, the other end of the connection pin may be coupled to be slidably movable from the support through the support plate.

The elastic member may be a compression coil spring, and the connection pin may pass through the inner circumference of the compression coil spring to support the compression coil spring.

A pair of guide members may be installed to be symmetrical with respect to the support, and an impact spreader may be installed to support the pair of guide members to be spaced apart from each other between the support and the adjacent support.

The impact spreader is coupled to any one of the guide member of the pair of guide members and the first spacer member having a protrusion in a direction in which the pair of guide members face each other, and coupled to the other guide member. And a second spacer having an insertion part inserted into the protrusion to be slidably movable.

An elastic member having an elastic force may be installed in the insertion portion between the protrusions.

According to the present invention, the elastic member is installed between the guide member and the support to absorb the impact, thereby minimizing the damage to life, and is coupled in the form of fastening the fastening member and the connecting pin to replace and install when broken. It is easy.

In addition, the manufacturing cost is low due to the relatively simple structure.

In addition, an impact spreader is installed between the guide members to absorb shocks and distribute the shocks to the guide rails in which the shocks do not occur, thereby not only preventing the guide members from being easily damaged by the shocks, but also effectively absorbing the shocks. Can be.

1 is a perspective view showing a state in which a guide rail shock absorbing device according to an embodiment of the present invention is installed on a guide rail.
Figure 2 is a plan view showing a state in which the guide rail shock absorbing device according to an embodiment of the present invention is installed on the guide rail.
3 is a plan view illustrating a state in which a guide rail shock absorbing device according to an embodiment of the present invention is installed on a guide rail and is operated after a vehicle crashes.
Figure 4 is a perspective view showing a disassembled state of the guide rail shock absorbing device according to an embodiment of the present invention.
5 is a plan view illustrating a guide rail shock absorbing device according to another embodiment of the present invention.
6 is a perspective view illustrating an impact spreader constituting a guide rail impact absorbing device according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, the guide rail may be installed at the roadside or at the center of the road to prevent the vehicle from leaving the driving lane.

A plurality of guide rails are installed so that the supports fixed to the ground are spaced apart from each other, and a guide member is installed on the side of the support, that is, the side of the support in the direction in which the road is positioned to connect the plurality of supports. Can be.

Here, the guide member may be formed in a curved shape so that the guide member is not easily bent by a collision of the vehicle, and a reflector may be installed at the top of the support and the side of the guide member to visually warn the driver. .

On the other hand, the guide rail may be configured such that the guide members are symmetrical with each other about the support, and the guide member may be installed only on one side of the support.

Such a guide rail prevents a vehicle off the driving lane from being guided by the guide member and traveling to another lane or a road other than the vehicle, thereby reducing casualties.

1 to 4, the guide rail shock absorbing device 100 of the present invention is installed between the guide member 210 and the support 230 of the guide rail 200 to guide the vehicle (V) It is a device capable of absorbing shock when it collides with the member 210, and may be installed for each support 230.

In an embodiment of the present invention, the guide rail shock absorbing device 100 is applied to the guide rail 200 in which the guide member 210 is installed on only one side of the support 230.

Guide rail shock absorbing device 100 according to an embodiment of the present invention may include a coupling plate (110). The coupling plate 110 may be formed in a plate shape, and a plurality of through holes 111 may be formed in the coupling plate 110.

On the other hand, the coupling plate 110 is a side of the guide member 210 constituting the guide rail 200 More specifically, the fastening member (B), such as a bolt on the side of the support member 230 is coupled to the guide member 210 Can be combined by.

At this time, the coupling plate 110 may be formed with a plurality of bolt holes 113 to fasten the fastening member (B), the bolt hole 113 is a through hole 111 of the portion of the coupling plate 110. ) May be formed around the formed portion.

In addition, the coupling plate 110 may be welded to the guide member 210 to be coupled, and the coupling plate 110 may be integrally formed with the guide member 210.

Guide rail shock absorbing device 100 according to an embodiment of the present invention may include a support plate (130). The supporting plate 130 may be coupled to the support 230 constituting the guide rail 200 to support the coupling plate 110.

On the other hand, the support plate 130 is formed in a plate shape, are arranged side by side to face each other with the coupling plate 110, a plurality of through holes 131 may be formed in the support plate 130. In this case, the through holes 131 of the support plate 130 may be formed at positions coincident with the through holes 131 formed in the coupling plate 110 positioned to face each other.

In addition, the support plate 130 may be formed with a plurality of bolt holes 133 to which the fastening member B is fastened to be coupled to the support 230 by a fastening member B such as a bolt. 133 may be formed around a portion where the through hole 131 is formed among the portions of the coupling plate 110.

Here, the support plate 130 may be coupled to the support 230 by the bracket 135 coupled to the support plate 130, the support plate 130 is also configured in the form that the support plate 130 is welded or support ( The support plate 130 may be integrally formed on the 230.

At this time, the bracket 135 is the same shape as the support plate 130, the bracket 135 is located in the opposite direction in which the support plate 130 is positioned around the support 230, the support plate 130 and the bracket 135 The support plate 130 may be coupled to the support 230 in a form that is coupled to each other by the fastening member (B).

That is, the support 230 is positioned between the bracket 135 and the support plate 130, and the support plate 230 is supported by the support member 230 by the fastening force of the fastening member B that couples the bracket 135 and the support plate 130. 130) may be combined.

Guide rail shock absorbing device 100 according to an embodiment of the present invention may include an elastic member 150. The elastic member 150 is located between the support plate 130 and the coupling plate 110, and has an elastic force to absorb the impact when the vehicle (V) collides with the guide member 210.

On the other hand, the elastic member 150 may be provided with a plurality of up and down of the guide member 210.

Here, the elastic member 150 is preferably a compression coil spring in which the coil is twisted in a spiral shape.

Guide rail shock absorbing device 100 according to an embodiment of the present invention may include a connection pin 170. The connecting pin 170 may couple the guide member 210 to the support 230 in the form of connecting the coupling plate 110 and the support plate 130 to each other.

On the other hand, the connecting pin 170 has a rod-shaped body 171 is formed long length, the head 173 and the body 171 having a circumference greater than the circumference of the body 171 at one end of the body 171 The other end of may be configured to include a threaded portion 175 is threaded so that the nut can be coupled.

Here, the connection pin 170 is the outer body of the coupling plate 110, that is, the body so that the head (173) of the connecting pin 170 to the outside that the guide member 210 is coupled to the center around the coupling plate 110 171 passes through the through hole 111 formed in the coupling plate 110 and is inserted into the through hole 131 of the support plate 130. In addition, the coupling plate 110 and the support plate 130 may be connected in a form of fastening a nut to the screw 175 inserted into the through hole 131 of the support plate 130.

At this time, the head 173 of the connecting pin 170 may be fixed in a form welded to the coupling plate 110, the portion inserted into the through hole 131 of the support plate 130 in the connecting pin 170 is through Sliding in the ball 131 can be moved.

On the other hand, when the connecting pin 170 connects the coupling plate 110 and the support plate 130 through each other, the body 171 of the connection pin 170 is located between the coupling plate 110 and the support plate 130. The elastic member 150 may be penetrated to prevent the elastic member 150 from being separated.

Here, when the elastic member 150 is a compression coil spring, it may be installed so that the connecting pin 170 passes through the inner circumference of the compression coil spring.

In addition, a plurality of connecting pins 170 are installed to connect the coupling plate 110 and the support plate 130 so that the through hole 111 formed in the coupling plate 110 and the through hole 131 formed in the support plate 130 are provided. A plurality may be formed to correspond to each other in the horizontal direction.

As in one embodiment, the connecting pin 170 may be located at four corners of the inner circumferential surface of the compression coil spring, that is, at each corner of any quadrangle that contacts the inner circumferential surface of the compression coil spring to firmly support the compression coil spring. .

In addition, when a plurality of elastic members 150 are installed, each of the elastic members 150 may be configured to support the plurality of connection pins 170.

The operation and effects between the above components will be described.

Guide rail shock absorbing device 100 according to an embodiment of the present invention is provided for each of the plurality of supports 230 constituting the guide rail (200).

On the other hand, the guide rail shock absorbing device 100, the coupling plate 110 is coupled to the guide member 210, the support plate 230 is coupled to the support plate 130.

At this time, the coupling plate 110 is coupled to each other by a fastening member (B) fastened to the bolt hole 113 of the coupling plate 110 through the guide member 210, the support plate 130 is a support 230 The fastening member B may be coupled to the support 230 in a form in which the fastening member B is fastened through the support plate 130 and the bracket 135 so as to face the bracket 135.

In addition, the elastic member 150 is positioned between the coupling plate 110 and the support plate 130, and the connection pin 170 is a through hole 111 and the support plate 130 of the support plate 130. 131 and the elastic member 150 to connect the coupling plate 110 and the backing plate 130 to support the elastic member 150 at the same time.

At this time, the head 173 of the connection pin 170 is fixed in the form that is welded to the coupling plate 110 across the coupling plate 110, the through hole 110 of the support plate 130 of the portion of the connection pin 170. Inserted into the) is a sliding movement in the through hole 131, the nut is fastened to the screw portion 175 at the end of the connection pin 170 to prevent the connection pin 170 is separated from the coupling plate 110 can do.

The shock absorbing device 100 configured as described above has a coupling plate 110 coupled to the guide member 210 when the vehicle V collides with the guide member 210 to impact the elastic member 150 and the elastic member 150. Is supported by the support plate 130 installed on the support 230 is compressed to absorb the impact force.

At this time, since the head 173 of the connection pin 170 is fixed to the coupling plate 110, and the connection pin 170 is slidably inserted in the fastening hole of the support plate 130, the coupling plate 110 at the time of the collision ) Is pushed in the direction in which the support plate 130 is located, the connection pin 170 is also pushed together to prevent the connection pin 170 from protruding or breaking out of the guide member 210 (see FIG. 3).

In addition, when the impact is released, the guide member 210 is returned to the initial position by the elastic force of the elastic member 150 supported by the support plate 130, and the connection pin 170 fixed to the coupling plate 110 is also supported by the support plate ( Sliding in the through hole 131 of 130 is returned to the initial position.

Therefore, the elastic member 150 effectively absorbs the impact force of the vehicle V, thereby minimizing the occurrence of human injury when the vehicle V collides with the guide rail 200, and the impact of the guide rail shock absorber 100 It is easy to replace and install because it is installed in the form of fastening the fastening member (B) and the connecting pin 170 in case of breakage, and it is not easily broken even when the vehicle (V) collides, and it is returned to its original state to maintain the maintenance cost. Can be reduced.

In addition, the manufacturing cost can be reduced because of the relatively simple structure.

5 and 6, another embodiment of the present invention provides a shock absorbing device 100 to a guide rail 200 configured such that a pair of guide members 210 are symmetric about a support 230. It is applied. In another embodiment of the present invention, the same configuration as in one embodiment of the present invention denotes the same reference numerals and detailed description thereof will be omitted.

The guide rail shock absorbing device 100 in another embodiment of the present invention is a pair of so as to face each other on one support 230 to support the guide member 210 which is located on both sides with respect to the support 230 The guide rail shock absorbing device 100 is installed.

More specifically, the support plates 130 are coupled to each other so as to be symmetrical with respect to the support 230, and the coupling plates 110 are coupled to each of the pair of guide members 210. And between each of the supporting plate 130 and the coupling plate 110, the elastic member 150 is located, the elastic member 150 is connected to the support pin 170 for connecting the supporting plate 130 and the coupling plate 110 Is supported by.

At this time, the support plate 130 is coupled to each other by passing through the bolt hole 133 formed in each of the support plate 130, the fastening member (B), such as bolts, the support plate 130 is positioned to be symmetrical with each other around the support 230 It can be coupled to the support 230 in the form.

In addition, the guide rail shock absorbing device 100 according to another embodiment may further include an impact spreader 190.

The impact spreader 190 is provided between the pair of guide members 210 so that when the vehicle V collides with any one of the guide members 210, the impact is distributed to the other guide member 210 to collide. The generated guide member 210 can be easily prevented from being damaged and can absorb the impact of the vehicle.

On the other hand, the impact spreader 190 may be provided with a plurality, the impact spreader 190 may be installed between each support 230 and the adjacent support 230.

The impact spreader 190 is coupled to each other such that the first spacer 191 and the second spacer 195 face each other, and lengths of the left and right directions may be stretched. The first spacer 191 may be coupled to any one of the pair of guide members 210, and the second spacer 195 may be coupled to the other.

On the other hand, the first spacer member 191 is formed in a plate shape in the direction in which the coupling portion 192 coupled to the guide member 210 and the second spacer member 195 on the side of the coupling portion 192 is located. It may be configured to include a protrusion 193 protruding. In this case, a plurality of protrusions 193 may be formed in the up and down directions of the coupling part 192.

Here, the coupling portion 192 may have a plurality of bolt holes 192a formed therein, and the bolt holes 192a may include fastening members B such as bolts that penetrate the guide member 210 and the bolt holes 192a. The first spacer 191 may be coupled to the guide member 210 in the form of being fastened to the nut.

In addition, the second spacer 195 is formed in a plate shape and positioned to face each other with the first spacer 191, the coupling part 196 coupled to the other guide member 210 and the coupling part 196. The side of the first spacer member 191 may protrude in the direction in which the position is positioned and may include an insertion portion 197 formed with an insertion groove 198 is inserted into the protrusion 193.

In this case, the insertion portion 197 is formed at a position corresponding to the position at which the protrusion 193 is formed, and may be formed in the same number as the number of the protrusion 193, and the protrusion 193 may be formed at the insertion portion 197. Sliding can move.

In addition, a plurality of bolt holes 196a may be formed in the coupling part 196 of the second spacer 195, and a fastening member B such as a bolt may be used as the guide member 210. And a second spacer 195 may be coupled to the guide member 210 in a form of being fastened to the nut by penetrating through the bolt hole 196a.

In addition, an elastic member 199 having an elastic force may be installed in the insertion groove 198 formed in the insertion portion 197 of the second spacer 195. The elastic member 199 may be inserted into the insertion portion 197. The protrusion 193 may be elastically supported. Here, the elastic member 199 is preferably a compression coil spring.

On the other hand, as shown in Figure 6, the impact spreader 190 is provided with a plurality of protrusions 193 and the insertion portion 197 in the up, down direction, wherein, the protrusion 193 and the insertion portion 197 is The first spacer 191 and the second spacer 195 may be provided alternately.

For example, a protrusion 193, an insertion part 197, and a protrusion 193 are formed in the upper portion of the first spacer 191, and then the second spacer 195 to correspond to the second spacer 195. In the upper portion of the bottom, in turn, the insertion portion 197, the protrusion 193, the insertion portion 197 may be formed to be coupled to each other.

By alternately configuring the protruding portion 193 and the inserting portion 197, the force for absorbing shock can be absorbed evenly without biasing either of the guide members 210.

Each of the impact spreaders 190 having the above-described configuration inserts the protrusion 193 of the first spacer 191 into the insertion groove 198 formed in the insertion portion 197 of the second spacer 195. The coupling portions 192 and 196 of the coupling member 192 and 196 are installed on the guide rails 200.

In addition, when the vehicle V impacts the guide member 210, the protrusion 193 of the first spacer 191 slides into the insertion groove 198 formed in the insertion unit 197, and the left and right sides of the vehicle V may be moved. The length is reduced, and the protrusion 193 may absorb the shock in the form of compressing the elastic member 199 and at the same time, the impact may be distributed to the guide member which does not occur.

On the other hand, when the impact is released, the impact spreader 190 is returned to the initial state in a form in which the protrusion 193 is returned to the initial position by the elastic force of the elastic member 199.

Accordingly, the elastic member 199 effectively absorbs the impact force of the vehicle V, thereby minimizing the occurrence of personal injury when the vehicle V collides with the guide rail 200, and the guide rail shock absorber 100 ) Is not only easy to replace when the vehicle is damaged, but also can be easily returned to its original state even when the vehicle V is collided, thereby reducing the maintenance cost.

In addition, the manufacturing cost can be reduced because of the relatively simple structure.

In addition, the impact spreader 190 is installed between each support 230 to disperse and absorb the shock of the guide member 210, thereby preventing the guide member 210 from being easily damaged by the impact, and the impact of the vehicle. Can be effectively absorbed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, Changes will be possible.

100: guide rail shock absorbing device 110: coupling plate
111,131: through hole 113,133,192a, 196a: bolt hole
130: base plate 135: bracket
150,199: elastic member 170: connecting pin
171: body 173: head
175: screw 190: impact spreader
191: first spacer 192,196: coupling portion
193: protrusion 195: second spacer
197: insertion portion 198: insertion groove
200: guide rail 210: guide member
230: support B: fastening member
V: vehicle

Claims (6)

A guide rail including a plurality of supports installed to be spaced apart from each other along a road, and a guide member connecting side surfaces of the plurality of supports to prevent separation of the vehicle, and inserted between the guide member and each of the supports. A guide rail shock absorber that absorbs a shock,
Coupling plate coupled to the side of the guide member,
Support plate provided on the support to face each other side by side with the coupling plate,
An elastic member inserted between the coupling plate and the support plate, and
And a plurality of connection pins for supporting the elastic member and connecting the coupling plate and the support plate. The method of claim 1,
One end of the connection pin is fixed to the coupling plate, the other end of the guide rail shock absorbing device, characterized in that coupled to the sliding movement in the support penetrating through the support plate. The method of claim 1,
The elastic member is a compression coil spring, and the connecting pin penetrates into the inner circumference of the compression coil spring to support the compression coil spring. The method of claim 1,
The guide member is provided with a pair so as to be symmetrical with each other about the support,
The guide rail shock absorber, characterized in that the impact spreader for supporting the pair of guide members to be spaced apart from each other between the support and the adjacent support. 5. The method of claim 4,
The impact spreader is coupled to any one of the guide member of the pair of guide members and the first spacer member having a protrusion in a direction in which the pair of guide members face each other, and coupled to the other guide member. And a second spacer having an insertion part inserted into the protrusion to be slidably movable. The method of claim 5,
Guide inserting the shock absorbing device, characterized in that the insertion portion is provided with an elastic member having an elastic force between the protruding portion.
KR1020110055853A 2011-06-08 2011-06-08 A apparatus for vehicle-impact absorbing of guide rail KR20120136260A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110055853A KR20120136260A (en) 2011-06-08 2011-06-08 A apparatus for vehicle-impact absorbing of guide rail

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Application Number Priority Date Filing Date Title
KR1020110055853A KR20120136260A (en) 2011-06-08 2011-06-08 A apparatus for vehicle-impact absorbing of guide rail

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KR20120136260A true KR20120136260A (en) 2012-12-18

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105568904A (en) * 2014-10-10 2016-05-11 无锡梓昱安全用品科技有限公司 Road security buffer structure
CN111560883A (en) * 2020-05-01 2020-08-21 姜伟 Road safety anti-collision guardrail
KR20210075816A (en) * 2019-12-13 2021-06-23 오영일 Protective separator of car line with collision absorption
CN114032815A (en) * 2021-12-14 2022-02-11 四川路桥建设集团交通工程有限公司 Central separation belt anti-collision guardrail device and construction method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105568904A (en) * 2014-10-10 2016-05-11 无锡梓昱安全用品科技有限公司 Road security buffer structure
KR20210075816A (en) * 2019-12-13 2021-06-23 오영일 Protective separator of car line with collision absorption
CN111560883A (en) * 2020-05-01 2020-08-21 姜伟 Road safety anti-collision guardrail
CN111560883B (en) * 2020-05-01 2021-08-24 姜伟 Road safety anti-collision guardrail
CN114032815A (en) * 2021-12-14 2022-02-11 四川路桥建设集团交通工程有限公司 Central separation belt anti-collision guardrail device and construction method thereof
CN114032815B (en) * 2021-12-14 2023-03-21 四川路桥建设集团交通工程有限公司 Central separation belt anti-collision guardrail device and construction method thereof

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