CN115354605A - Guardrail guiding device and using method - Google Patents

Guardrail guiding device and using method Download PDF

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Publication number
CN115354605A
CN115354605A CN202210797430.5A CN202210797430A CN115354605A CN 115354605 A CN115354605 A CN 115354605A CN 202210797430 A CN202210797430 A CN 202210797430A CN 115354605 A CN115354605 A CN 115354605A
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CN
China
Prior art keywords
supporting
guide
connecting rod
road
guardrail
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202210797430.5A
Other languages
Chinese (zh)
Other versions
CN115354605B (en
Inventor
于欣冉
陈亚振
张嘉恒
王延锋
周建勇
魏明
陈前
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Aobang Machinery Equipment Manufacturing Co ltd
Original Assignee
Shandong Aobang Machinery Equipment Manufacturing Co ltd
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Publication of CN115354605A publication Critical patent/CN115354605A/en
Application granted granted Critical
Publication of CN115354605B publication Critical patent/CN115354605B/en
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Classifications

    • 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
    • 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
    • E01F15/0461—Supports, e.g. posts
    • 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
    • E01F15/0476—Foundations
    • 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
    • E01F15/0484—Installing; Repairing; Adjusting
    • 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
    • E01F15/0492—Provisions for guiding in combination with rails, e.g. tire-gutters
    • 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
    • E01F15/14—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 specially adapted for local protection, e.g. for bridge piers, for traffic islands
    • E01F15/145—Means for vehicle stopping using impact energy absorbers
    • E01F15/146—Means for vehicle stopping using impact energy absorbers fixed arrangements
    • 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
    • E01F15/14—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 specially adapted for local protection, e.g. for bridge piers, for traffic islands
    • E01F15/145—Means for vehicle stopping using impact energy absorbers
    • E01F15/148—Means for vehicle stopping using impact energy absorbers mobile arrangements
    • 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
    • E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
    • E01F7/06—Anti-dazzle arrangements ; Securing anti-dazzle means to crash-barriers
    • 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
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
    • E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
    • E01F9/608—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings for guiding, warning or controlling traffic, e.g. delineator posts or milestones
    • 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
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
    • E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
    • E01F9/619—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings with reflectors; with means for keeping reflectors clean
    • 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
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
    • E01F9/623—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection
    • E01F9/631—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection specially adapted for breaking, disengaging, collapsing or permanently deforming when deflected or displaced, e.g. by vehicle impact
    • 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
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
    • E01F9/658—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing
    • E01F9/669—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing for fastening to safety barriers or the like

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)

Abstract

The invention provides a guardrail guiding device and a using method thereof, wherein the guardrail guiding device comprises: the supporting unit is arranged on a road base surface in a sliding mode; the guide unit is mounted on the support unit and used for guiding and guiding the vehicle. The guide device provided by the invention fundamentally converts the rigid guardrail into the semi-rigid guardrail, really realizes the force decomposition by adopting the design of buffering and shifting during the impact, ensures that the anti-collision effect is achieved under the condition that the guardrail does not topple over, and improves the safety of vehicles and construction operation.

Description

Guardrail guiding device and using method
Technical Field
The invention relates to the technical field of road construction, in particular to a guardrail guiding device and a using method thereof.
Background
The reconstruction and expansion engineering, maintenance construction and the like of the road are generally carried out under the condition of not interrupting traffic. When the construction area occupies a traffic lane, in order to facilitate construction, passing vehicles generally need to be forcibly decelerated and the traffic lane is switched, and slowly pass through the construction road section at a low speed. In the road section, traffic accidents caused by the fact that vehicles are out of control or the fact that passing vehicles collide with personnel or equipment in a construction area often occur.
Traffic signs and marked lines of a construction area are active protection facilities for safety protection and are used for preventing accidents, an isolation facility is a final barrier for separating construction area operators from traffic flow, and if vehicles collide or pass through the isolation facility in the case of accidents, life threat is directly caused to the construction area operators, so that the anti-collision performance of the isolation facility is considered when the isolation facility is arranged. Construction zone barrier devices should have the following characteristics: 1. isolation; 2. the anti-collision performance; 3. guidance quality; 4. the reusability; 5. high cost performance and the like.
At present, isolation facilities such as traffic cones, anti-collision barrels or isolation piers are usually placed outside a construction area to isolate the construction area from passing vehicles, but the isolation facilities basically have no safety protection capability and cannot effectively and safely protect personnel or equipment in the construction area; continuous concrete hard shoulder is put in the highway section of part long-term construction, and this kind of hard shoulder has certain safety protection ability, nevertheless is difficult for transportation and dismouting to occupation space is great.
The guardrail consisting of the upright posts and the protective plates is used as an isolation facility, the protective plates are made of steel plates and are rigidly connected by rigid materials, the deformation capacity is very small, the flexibility is almost eliminated, the effects of blocking out-of-control vehicles, slowing down the vehicle speed and protecting the out-of-control vehicles are not ideal, particularly, the blocking level of the common corrugated beam steel guardrail on the expressway is low, and accidents with large kinetic energy still occur frequently after the vehicles break through the guardrail.
Disclosure of Invention
In order to solve the above-mentioned technical problems, the prior art adopts a buffer device to improve, for example, a buffer element is arranged at the corrugated plate (CN 209836870U) or at the bottom of the upright column (CN 204753450U) for buffering the collision, the buffer distance is short, and the semi-rigid guardrail is still converted into a rigid guardrail in combination with the blocking of the fixed column thereof, so that the buffer effect is lost. The invention provides a guardrail guiding device and a using method thereof, which can radically convert a rigid guardrail into a semi-rigid guardrail, really realize the force resolution by adopting the design of buffering and displacement during the impact, ensure the anti-collision effect under the condition that the guardrail is not toppled, and improve the safety of vehicles and construction operation.
In a first aspect of the invention, there is provided a guardrail guide apparatus comprising: the supporting unit is arranged on a road base surface in a sliding mode; the guide unit is mounted on the support unit and used for guiding and guiding the vehicle.
Furthermore, the guide unit is provided with a plurality of groups of connecting rods which are fixed on the supporting unit; each group of connecting rods consists of one or more connecting rods which are parallel and parallel; one end of the connecting rod is provided with a mounting hole, and the other end of the connecting rod is provided with a bolt piece fixedly connected with the mounting hole arranged at one end of the adjacent connecting rod.
Further, the supporting unit is provided with a supporting part; the bottom of the supporting part is contacted with the base surface of the road and is used for supporting and fixing the guide unit; the supporting part is arranged at the end part or the middle part of each group of connecting rods.
Furthermore, the supporting part adopts a balancing weight for supporting and fixing the connecting rod; the side surface of the balancing weight is provided with a mounting part; the mounting portion and the mounting hole are fixed through bolts, and the supporting portion is connected with the connecting rod and used for guiding and guiding the vehicle.
Furthermore, a buffer base matched with the counterweight block is arranged at the bottom of the counterweight block; the buffer base is arranged on a road base surface, the balancing weight is arranged in the buffer base, and the balancing weight can slide in the buffer base after being impacted by force.
Furthermore, the supporting part adopts a supporting seat which is in a shape of Chinese character 'ji', and the upper part of the supporting seat is narrow and the lower part of the supporting seat is wide; the upper part of the supporting seat is provided with a connecting rod, and the bottom surface of the lower part of the supporting seat is contacted with the base surface of the highway.
Further, the bottom of the supporting seat is provided with a sliding part; the sliding part is contacted with the road base surface and can drive the supporting part to slide on the road surface after being impacted by force.
Further, the supporting seat comprises a main plate and a side plate; the main board is in a shape of Chinese character 'ji', a sliding part is arranged at the bottom of the main board, and side boards which are vertical to the plane of the main board are arranged on the other three sides of the main board; the connecting rod is arranged on the main plate in a penetrating way or fixed on the side plate through a bolt.
Furthermore, the sliding part is provided with a sliding plate and a buffer angle; the sliding plate is parallel to the road base surface, reinforcing plates are vertically arranged on two side edges of the sliding plate, and the reinforcing plates are arranged at the bottom of the supporting part; the buffer corners are arc-shaped parts, are arranged at two ends of the sliding part and form round corners with the base surface of the highway; one corner edge of the buffer corner is fixedly connected with the side plate, and the other corner edge of the buffer corner is fixedly connected with the sliding plate.
In a second aspect of the present invention, there is provided a method for using a guardrail guide device, using the guide device, comprising the following steps:
determining a guide angle and a guide length according to the road information and the vehicle information;
determining the length and the number of used groups of each group of connecting rods by combining the strength of the connecting rods and the structure selection of the supporting units;
arranging a supporting unit on a road base surface;
assembling a plurality of groups of connecting rods and installing the connecting rods on the supporting unit;
and connecting and fixing the assembled connecting rod with the highway guardrail, and connecting the connecting rod with the highway guardrail at an angle to complete the installation of the guide device.
According to the technical scheme, the design of the sliding part is adopted, so that the rigid guardrail realizes a semi-rigid characteristic, the movement displacement of the rigid guardrail is increased on the basis of the unique advantages of the rigid guardrail, the buffering effect is achieved, and the anti-collision effect is better achieved; by using the existing materials and recycling other steel materials such as corrugated plates and the like, the effects of environmental protection and cost saving are achieved.
It should be understood that the statements herein reciting aspects are not intended to limit the critical or essential features of any embodiment of the invention, nor are they intended to limit the scope of the invention. Other features of the present invention will become apparent from the following description.
Drawings
The above and other features, advantages and aspects of embodiments of the present invention will become more apparent upon consideration of the following detailed description, taken in conjunction with the accompanying drawings. In the drawings, like or similar reference characters designate like or similar elements, and wherein:
FIG. 1 is an overall configuration view of a guide apparatus of the present embodiment;
fig. 2 is a schematic structural view of a guide unit of the guide device of the present embodiment;
fig. 3 is a schematic view showing a structure of a supporting unit of the guide apparatus of the present embodiment;
FIG. 4 is a schematic view of a second structure of the supporting unit of the guiding device of this embodiment;
FIG. 5 is a schematic view showing a third structure of a support unit of the guide apparatus of the present embodiment;
FIG. 6 is a schematic view of a support base of the support unit of the guide apparatus according to the present embodiment;
fig. 7 is a schematic view showing a structure of a sliding portion of a supporting unit of the guide apparatus of the present embodiment;
fig. 8 is a second schematic view of the structure of the sliding portion of the supporting unit of the guide device of the present embodiment;
FIG. 9 is a schematic view of a supporting seat of the guiding device of this embodiment;
FIG. 10 is a second schematic view of the supporting seat of the guiding device of this embodiment;
FIG. 11 is a third schematic view of the supporting seat structure of the guiding device of this embodiment;
FIG. 12 is a fourth schematic view showing the structure of the supporting base of the guide device according to the present embodiment;
FIG. 13 is a schematic view showing a structure of the guide device of the present embodiment;
FIG. 14 is a schematic plan view of the guide device of the present embodiment with the support base integrally formed;
FIG. 15 is a perspective view illustrating the support of the guide device according to the present embodiment;
wherein, the corresponding relationship between the reference numbers and the part names in fig. 1-15 is:
1 guide unit, 10 connecting rod, 101 mounting hole, 102 bolt piece, 11 mounting hole, 12 resistance part, 13 safety part; 2 supporting units, 20 balancing weights, 201 mounting parts, 21 buffer bases, 22 supporting seats, 221 main plates, 222 side plates, 23 sliding parts, 231 sliding plates, 232 buffer angles, 233 reinforcing plates, a bending part and b arc parts; 3, a road guardrail; 31 a middle divider; 4 extending the connecting part; 5, supporting the rod; 6 fixing the steel wire rope; 7, preventing collision; 8 crash pad.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In addition, the term "and/or" herein is only one kind of association relationship describing an associated object, and means that there may be three kinds of relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In a first aspect, the invention provides a barrier guide comprising: the device comprises a guide unit 1 and a support unit 2, wherein the support unit 2 is slidably mounted on a road base surface; the guide unit 1 is mounted to the support unit 2 for guiding the vehicle.
In the above embodiment, as shown in fig. 2 and 4, the guide unit 1 is provided with a plurality of sets of connecting rods 10, the connecting rods 10 being fixed to the support unit 2; each group of connecting rods 10 is formed by one or more connecting rods 10 in parallel; one end of the connecting rod 10 is provided with a mounting hole 101 and the other end is provided with a bolt member 102 for fixedly connecting with the mounting hole provided at one end of the adjacent connecting rod 10. And an anti-glare plate mounting hole 11 is formed in the connecting rod 10 at the top of the guide unit 1 and used for mounting an anti-glare plate, so that the safety is improved.
In the above-mentioned embodiment, as shown in fig. 2, be provided with resistance portion 12 between connecting rod 10 and connecting rod 10, the setting of resistance portion 12, firstly increase the collision and taken place the effect of resistance, secondly play the effect of anti-dazzle dizzy, thirdly set up the reflective membrane at resistance portion 12 interval, play the effect of view on the basis of increase night driving safety, fourthly increase the safety protection effect, prevent that animal and people from creeping into on the road in the space of connecting rod, cause the traffic accident. Specifically, the resistance portions 12 may be formed in a rod-like, sheet-like or net-like structure, and are spaced between the connecting rods 10. The safety part 13 is also arranged between the bottom connecting rod 10 of the guide unit 1 and the road base surface, and the safety part 13 can also adopt a rod-shaped, sheet-shaped or net-shaped structure, so that the collision is increased, the effect of certain blocking is achieved, the safety protection effect is achieved, the traffic accidents are mainly prevented from occurring when animals and people outside the road enter the road, and the safety effect is increased by blocking. Considering the height of the guide unit 1 in general, the resistance parts 12 are provided between the connection bars 10 and the safety parts 13 are provided between the connection bars 10 and the road base surface according to the number of the connection bars 10.
In order to achieve better protection and guidance, referring to fig. 1, considering that the two sides of the existing road are provided with the road guardrails 3, one end of the connecting rod 10 is connected with the road guardrail 3 on one side, a separate mounting part can be arranged, one end of the mounting part is provided with a locking device which is locked with the guardrail of the road guardrail 3, and the other end is provided with a mounting hole matched with the bolt piece 102 of the connecting rod 10, and the connection is realized through bolts, so that the method is simple and easy; in order to fix the guide unit 1, a support unit 2 is provided at the other end of the guide unit 1, the support unit 2 is provided at a road guard rail 3 at the middle or the other side of the road according to the guide requirement, and the guide unit 1 is disposed at an angle with respect to the extending direction of the road. In this embodiment the angle of inclination of the guide unit 1 with respect to the direction of extension of the road is 20-60.
In this embodiment, the connecting rod 10 may be made of one or a combination of several of corrugated plates, i-shaped steel, channel steel, round pipe steel, rectangular pipe steel, and deformed steel.
In this embodiment, the connecting members for connecting and fixing the connecting rods 10 can be straight plate members, and the straight plate members are inserted into the adjacent connecting rods 10 and fixedly connected by the bolt members, so that the processing is convenient, and the material is easy to save; the connecting rod can also be a large square pipe fitting which is sleeved outside the adjacent end of the adjacent connecting rod 10 and is fixedly connected through a bolt piece; the connecting piece can also be a small square pipe fitting which is inserted into the opening at the adjacent end of the adjacent connecting piece 10 and is fixedly connected through a bolt piece; the connecting rod can also be a round pipe fitting which is more suitable for being matched with a round pipe, and the round pipe fitting is inserted into the adjacent end openings of the adjacent connecting rods 10 and is fixedly connected through the bolt pieces, so that a better splicing and fixing effect is realized.
In the above embodiment, the support unit 2 is provided with the support portion; the bottom of the supporting part is contacted with the base surface of the road and is used for supporting and fixing the guide unit 1; the support portion is provided at the end or the middle of each set of connecting rods 10.
In the embodiment, the supporting part is different from the installation form of the prior art which is generally fixed on a road base surface, while the supporting part of the invention is in an assembly form of sliding relative to the road base surface, different sliding modes are set according to different supporting part material selection, and the arrangement is characterized in that under the condition that the end part of the guiding device is fixed, when a vehicle collides, the guiding unit 1 decomposes a part of impact force according to the ductility of the steel material of the guiding unit, and also decomposes the impact force into the friction sliding of the supporting part and the road base surface, so as to play a role in semi-rigid protection of the vehicle, and better realize the protection of the vehicle and the guarantee of the safety of personnel in the vehicle.
In the above embodiment, in order to further improve the stabilizing effect of the guiding device, as shown in fig. 3, the supporting portion adopts a weight block 20 for supporting the fixed connecting rod 10; the side of the counterweight block 20 is provided with a mounting part 201; the mounting portion 201 is fixed to the mounting hole 101 by a bolt, and the support portion is connected to the connecting rod 10 for guiding the vehicle. The counterweight 20 can be made of cement, reinforced concrete, metal and the like, the counterweight 20 is in a square column shape, or is in a conical shape or a n-shaped shape with the base larger than the top area, and the stable effect of the guide unit 1 is improved by the weight of the counterweight 20.
In this embodiment, when the guide unit 1 adopts a single row of connecting rods 10, the mounting portion 201 may be provided on one side or both sides of the weight block 20, and when the weight block 20 is located at the outermost layer of the wire guiding device, only one side perpendicular to the guiding direction is required to be provided with the mounting portion 201, and is connected with the mounting hole 101 of the connecting rod 10 by a bolt; when the balancing weight 20 is arranged in the middle of the connecting rod 10, the two sides of the balancing weight 20 perpendicular to the guiding direction are provided with mounting parts 201 which are respectively used for connecting the groups of the connecting rod 10, namely, the end part of each group of the connecting rod 10 is respectively connected with a balancing weight 20; when the guide unit 1 adopts the double row connecting rods 10, the two sides of the counterweight block 20 parallel to the guide direction are provided with the mounting parts 201, the connecting rods 10 are mounted on the mounting parts 201 outside the counterweight block 20, and the counterweight block 20 is arranged between the double row connecting rods 10, as shown in fig. 3.
In this embodiment, the weight 20 is directly contacted with the road base surface, that is, the weight 20 is directly placed on the road base surface, and the fixed guide unit 1 is supported by its own weight. The design has the advantages that firstly, the guide unit can meet the requirement of guiding, secondly, after the vehicle is impacted, the impact force is buffered by utilizing the friction force between the balancing weight and the road base surface and the ductility of steel of the connecting rod, and when the impact force reaches a certain degree, the impact force can be further decomposed and buffered by sliding with the road base surface, so that the protection grade is achieved.
In the above embodiment, as shown in fig. 3, a buffer base 21 is disposed at the bottom of the counterweight 20; wherein, the buffer base 21 is arranged on the road base surface, the balancing weight 20 is arranged in the buffer base 21, and the balancing weight 20 can slide in the buffer base 21 after being impacted by force.
In this embodiment, in order to further ensure the professional performance of the guiding device and the improvement of the collision avoidance capability, a buffer base 21 is further provided for each weight block 20. The buffer base 21 is formed by digging a groove with a certain depth on the road base surface according to the bottom area of the balancing weight, and the balancing weight 20 is embedded in the groove. Wherein, on both sides along the guide parallel direction, the length of both sides of the groove is equal to the length of both sides of the counterweight 20; on both sides along the guide vertical direction, the length of both sides of the groove is greater than that of both sides of the counterweight block 20; therefore, after being impacted by force, the balancing weight can slide in the groove along the vertical direction of the guide, so that the force is resolved. The depth of the groove is 120-180mm, and the depth is set to ensure that the balancing weight 20 has certain resistance when sliding to the edge of the groove; the distance of the counterweight block 20 sliding relatively in the groove is 1-1.5m; according to the distance setting, the influence on the lane can be effectively avoided in the sliding range according to the empirical data, and the effect of buffering and absorbing energy of the collided vehicle is further achieved to the maximum extent. Specifically, the depth of the groove can be set to be 150mm, and the sliding distance is 1.2m, so that the best energy absorption buffering effect is achieved.
In the above-mentioned embodiment, when needing very long section direction guardrail, the direction guardrail comprises the fixed support element 2 at both ends and the slip support element 2 in the middle of a plurality of, the interval sets up installation multiunit guide element 1 between the support element 2, the piece 20 of weighing of end department can be chooseed for use to fixed support element 2, also can adopt the bearing structure of other forms, for example adopt steel to forge the supporting seat 22 that forms, supporting seat 22 is convenient for reuse many times, and the transportation of being convenient for has also increased whole guider's crashworthiness simultaneously.
In the above embodiment, as shown in fig. 2 and 4, the support portion is formed by forging a steel material, in which the support seat 22 is a support seat 22, and the support seat 22 is in a zigzag shape with a narrow upper part and a wide lower part; the support seat 22 is provided with the connecting rod 10 at the upper part and the lower bottom surface contacting with the road base surface.
In this embodiment, as shown in fig. 4, the support seat 22 is made of steel such as square steel, the connecting rod 10 is made of a two-wave plate, the square steel at the bottom of the support seat 22 directly contacts with the road base surface to support the connecting rod 10, and simultaneously contacts with the road base surface without fixing treatment, so that the support seat is forced to move, the guide unit is driven to move, and the force is decomposed by utilizing the ductility of the steel of the connecting rod 10 itself of the guide unit 1 and the connection tension between the rod and the rod, thereby playing a role in protection.
In this embodiment, as shown in fig. 5, the supporting seat 22 may also adopt a structure of a base and a vertical pipe, the connecting rod 10 adopts a corrugated plate, the vertical pipe plays a role of supporting and installing the connecting rod 10, the base increases the contact area with the public road base surface, and the stability is strong. The base of the structure is equal to the bottom of the supporting seat 22 of other structures, and the structure with the upper end and the lower end is favorable for mounting and dismounting.
In the above embodiment, when the supporting base 22 is used as the fixed supporting unit 2, the bottom of the supporting base 22 is fixed on the roadbed, and the fixing manner is not limited to fixing on the ground through a nail-shaped structure, but may be fixing on the ground through an anchoring manner, and may be other fixing manners in the prior art.
In the above embodiment, the bottom of the support seat 22 is provided with the sliding portion 23; the sliding part 23 contacts with the road base surface and is impacted by a force to drive the supporting part to slide on the road surface. In order to better show the anti-collision effect of the support seat 22, the bottom of the support seat 22 is subjected to sliding treatment. For example, the bottom of the square steel U-shaped support seat 22 is polished to reduce the friction with the road base surface as much as possible, so that part of the friction with the road is lost to be decomposed, but the moving distance of the guide unit 1 is increased, so that the impact force decomposed by the friction is converted into the deformation force and the extension force of the guide unit 1 through the connecting rod 10 to decompose and buffer the impact force, the probability of toppling over of the guide device due to overlarge friction is reduced, the buffer distance of vehicle impact is increased, and a better protection effect is achieved.
In the above embodiment, as shown in fig. 6, the support base 22 includes the main plate 221 and the side plate 222; the main plate 221 is shaped like a Chinese character 'ji', the sliding part 23 is installed at the bottom of the main plate 221, and a side plate 222 perpendicular to the plane of the main plate 221 is arranged on the side edge of the main plate 221; the connecting rod 10 is inserted into the main plate 221 or bolted to the side plate 222. The upper end of the main board 221 is provided with through holes with equal number according to the data of the connecting rod 10, and the through holes are used for fixing the connecting rod 10; or the side plate 222 is provided with fixing holes with equal number, and the connecting rod 10 is installed and fixed through bolts.
In this embodiment, the supporting seat 22 is formed by riveting the main plate 221 and the side plate 222, or by integrally forming, as shown in fig. 14, a plate material with a certain shape is stamped according to the structural plane of the main plate 221 and the side plate 222, and then the periphery of the plate material is bent and molded to form the side plate 222.
Through the design of fig. 14, the supporting seat shown in fig. 11 can be formed by integrally forming the special-shaped structure, the special-shaped three-dimensional structure is formed by stamping and bending the plate, the punched leftover materials can be used as the inner support of the supporting seat 22 and the mounting part 101 at the connecting rod 10, and the like, so that the waste is recycled, the material is saved, the manufacturing is simple, and the cost is lowest. Specifically, as shown in fig. 15, a punched part is hollowed out for inserting the connecting rod 10, and the bottom part is hollowed out as a leftover material; the dotted line represents the bending position, the middle part is the main plate 221, the side edge forms the side plate 222 by bending, and the bottom part of the side plate forms the bending angle a of the support seat after bending.
In the above embodiment, as shown in fig. 7 and 8, the slide portion 23 is provided with the slide plate 231 and the buffer angle 232; as shown in fig. 9 and 10, the sliding plate 231 is parallel to the road base surface, and reinforcing plates 233 are vertically disposed at two side edges of the sliding plate, and the reinforcing plates 233 are installed at the bottom of the supporting seat 22; the buffer angle 232 is an arc part, is arranged at two ends of the sliding part 23 and forms a round angle with the road base surface; one corner edge of the buffer corner 232 is fixedly connected with the side plate 222 of the support seat 22, and the other corner edge is fixedly connected with the sliding plate 231.
In this embodiment, the buffer corner 232 may be C-shaped (fig. 8), U-shaped (fig. 7), and other shapes with a circular arc. The effect is to effectively prevent the support base set 22 from being set when the side plates 222 are in contact with the base surface of the road. The buffer angle 232 may be fixed to the main plate 221 and the side plate 222 by welding, riveting, or the like, or may be integrally formed with the support base 22.
In this embodiment, when the guide unit is subjected to an impact force, the guide unit 1 may turn over in the direction of the force, the lower edge of the main plate may contact with the ground, the edge of the side plate may contact with the ground under the action of the force, and a situation of traveling to the ground may occur, and under the further action of the impact force, the guide unit 1 may fall over, and the safety of the vehicle may not be ensured. When the support seat 22 with the sliding portion 23 of the present embodiment encounters impact force, and the guiding unit 1 rolls over, the arc portion of the buffering angle 232 contacts with the ground, so that the side plate 222 cannot contact with the ground, and due to the continuous smooth outer surface of the arc portion, the arc portion contacts with the ground, so that the support seat 22 can keep a translational motion state, and the guardrail can be prevented from rolling over.
It should be noted that in all the above embodiments, the buffer base 21, the smooth bottom support seat 22 and the sliding portion 23 are all sliding components for supporting, i.e. contacting with the ground. In yet another embodiment, the side plate 222 is used for supporting, that is, contacting the ground, and an upward bending portion a of a lower side edge of the side plate 222 contacts the ground (as shown in fig. 11), or an inward bending arc portion b of the lower side edge of the side plate 222 contacts the ground (as shown in fig. 12), which may also prevent the side plate 222 from being able to travel to the ground.
In a second aspect of the invention, as shown in fig. 13, the invention provides a method for using a guardrail guiding device, which adopts the guiding device and comprises the following steps:
determining a guide angle and a guide length according to the road information and the vehicle information;
determining the length and the number of groups of connecting rods 10 in each group by combining the strength of the connecting rods 10 and the structure selection of the supporting unit 2;
arranging a supporting unit 2 on a road base surface;
assembling a plurality of groups of connecting rods 10 which are arranged on the supporting unit 2;
and connecting and fixing the assembled connecting rod 10 with the highway guardrail 3, and connecting the connecting rod with the highway guardrail 3 at an angle to complete the installation of the guide device.
In the above embodiment, the guardrail guiding device is provided to solve the technical problem of the existing anti-collision barrel and the like in guiding, and therefore, the guardrail guiding device provided by the embodiment comprises a guiding unit 1, a supporting unit 2 and a road guardrail 3 needing to be matched with the guiding unit, the guardrail guiding device provided by the embodiment is a temporary road guardrail which is mainly used as a temporary guardrail in the middle of a road or at the edge of the road at present, has an anti-collision effect, can effectively stop a vehicle to a certain extent, and can better play a role in protection by being used as a guiding guardrail.
In order to achieve better protection and guidance, one end of the guide unit 1 is fixed to the road guardrail 3 at the middle or edge of the road, and considering that the existing road guardrail is arranged at the middle or edge of the road, one end of the connecting rod 10 only needs to be fixed to the road guardrail 3 at the middle or edge of the road, and in this embodiment, as shown in fig. 13, the connecting rod 10 only needs to be fixed to the upright of the middle fence 31 by taking the middle fence 31 as an example. Specifically, a device similar to a hoop is installed on the center partition rail 31, and then the center partition rail 31 is connected.
Wherein, connecting rod 10 and middle jube 31 also can be connected through extending connecting portion 4, increase the length of guide unit 1, avoid increasing a set of connecting rod 10 length and surpassing the scope, reduce the not enough problem of a set of connecting rod 10 length, will extend connecting portion 4 and set up on connecting rod 10 and middle jube 31, can not influence the holistic crashproof effect of guider. The extension connection 4 may be comprised of one to more telescopic rods. Specifically speaking, the telescopic link is the telescopic link that can lock, like this, can be according to actual conditions, adjustment guider's inclination and length make its suitability stronger. The extension connecting part 4 is an extension connecting rod, belongs to the extension of the moving guide device to the middle partition fence 31, and plays a role of fixing one end of the moving guide device.
In order to further achieve the anti-collision effect, a support rod 5 is further arranged on the counterweight block 20 at the end part of the guide unit, the support rod 5 is connected with the counterweight block 20, and the vertical middle separation fence 31 is arranged on the middle separation fence 31. The support bar 5, the guiding device and the middle partition rail 31 form a triangle, so that the stability of the guiding device is improved, and the protection and guiding are achieved, and in the embodiment, the optimal inclination angle of the movable guiding device is 30-50 °. The support rods 5 may be provided in plural numbers, and are uniformly distributed on the side surface between the weight block 20 and the middle partition rail 31.
In this embodiment, be provided with balancing weight 20 between bracing piece 5 and removal guider, balancing weight 20 cross-section is the square setting, and its main objective is the stability that improves removal guider, and for this reason, a side of balancing weight 20 and removal guider set up with the plane, move the extension of public guider keeping away from the opposite side of extension connecting portion 4 one end in other words, bracing piece 5 sets up on balancing weight 20 keeps away from removal guider with the plane side. Thus, the weight of the counterweight block 20 is increased, so that the purpose of improving the stabilizing effect of the movable guide device is achieved.
Similarly, in order to further improve the stabilizing effect of the guiding device, two support rods 5 are arranged on the counterweight block 20, the two support rods 5 are connected to different sides of the counterweight block 20, meanwhile, the support rods 5 are far away from the counterweight block 20, a fixed steel wire rope 6 is arranged on the side face of the movable guiding device, the other end of the fixed steel wire rope 6 is fixed on the middle partition fence 31, and thus, the angle of the support rods 5 and the fixed steel wire rope 6 for stabilizing the counterweight block 20 is utilized, so that the position relation between the guiding unit 1 and the counterweight block 20 is more stable, and the stabilizing effect of the whole triangular structure is ensured. The use of bracing piece 5 and fixed wire rope 6 has also played simultaneously when the vehicle striking, realizes the decomposition of power and more probable increase buffering dynamics, plays better crashproof effect, guarantees the safety in vehicle and construction site.
In view of stability of transportation, in the present embodiment, the extension connecting portion 4 and the support rod 5 are telescopic rods. Specific speaking, the telescopic link is the telescopic link that can lock, like this, can be according to actual conditions, the inclination of adjustment removal guider makes its suitability stronger.
In order to further protect the vehicle, in the present embodiment, an anti-collision vehicle 7 is further provided, and the anti-collision vehicle 7 is disposed behind the guide device in the vehicle traveling direction. Therefore, if the vehicle passes through the guide device at an excessively high speed, the vehicle can collide with the anti-collision vehicle 7, and the aim of buffering the impact force of the vehicle is fulfilled.
In order to further protect the vehicle, a crash pad 8 is also provided between the crash barrier 7 and the guide. The crash pad 8 can further realize the buffering and the interception of the vehicle, and meanwhile, the crash car 7 can also form the placement of the guide unit 1, the supporting unit 2 and the crash pad 8, so that the transportation of the crash pad is realized, and meanwhile, the crash pad can also play a role in warning the vehicle, thereby achieving the purpose of achieving multiple purposes at one stroke.
Through foretell setting, utilize to remove highway steel guardrail not only can play the effect of direction, can also play better crashproof effect to the vehicle, provide the guarantee for the safety of traveling of vehicle.
The guardrail guiding device and the using method have the following technical effects: by adopting the design of the sliding part, the rigid guardrail realizes the semi-rigid characteristic, increases the moving displacement of the guardrail on the basis of the unique advantages of the rigid guardrail, achieves the buffering effect and better achieves the anti-collision effect; the supporting seat is designed, the waste corrugated plate is forged and cut, and the connecting rod can utilize other steel materials such as the corrugated plate and the like for waste utilization, so that the effects of environmental protection and cost saving are achieved; the whole steel structure of the guide device is adopted to compare with the guide device made of plastic materials, the transportation and installation are simple, convenient and easy, the recycling is convenient, the service life is long, waste can be recycled, and the guide device is environment-friendly and energy-saving.
In the description of the present invention, the terms "connect", "mount", "fix", and the like are used in a broad sense, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.
In the description of the present application, the description of the terms "one embodiment," "some embodiments," or the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred implementation of the present invention and is not intended to limit the present invention, and various modifications and changes may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A guardrail guide assembly, comprising: a guide unit and a support unit, wherein,
the supporting unit is slidably mounted on a road base surface;
the guide unit is mounted on the support unit and used for guiding and guiding the vehicle.
2. The guiding device of claim 1,
the guide unit is provided with a plurality of groups of connecting rods, and the connecting rods are fixed on the supporting unit;
each group of connecting rods consists of one or more connecting rods which are parallel and parallel;
one end of the connecting rod is provided with a mounting hole, and the other end of the connecting rod is provided with a bolt piece fixedly connected with the mounting hole and used for being adjacent to the mounting hole arranged at one end of the connecting rod.
3. The guide device of claim 2,
the supporting unit is provided with a supporting part;
the bottom of the supporting part is in contact with a road base surface and is used for supporting and fixing the guide unit;
the supporting part is arranged at the end part or the middle part of each group of connecting rods.
4. The guide device of claim 3,
the supporting part adopts a balancing weight and is used for supporting and fixing the connecting rod;
the side surface of the balancing weight is provided with an installation part; the installation department with the mounting hole passes through the bolt fastening, makes the supporting part with the connecting rod is connected for guide to the vehicle.
5. The guiding device of claim 4,
the bottom of the counterweight block is provided with a buffer base matched with the counterweight block; wherein the content of the first and second substances,
the buffer base is arranged on a road base surface, the balancing weight is arranged in the buffer base, and the balancing weight can slide in the buffer base after being impacted by force.
6. The guiding device of claim 3,
the supporting part adopts a supporting seat which is in a shape of a Chinese character 'ji', and the upper part of the supporting seat is narrow and the lower part of the supporting seat is wide;
the upper part of the supporting seat is provided with the connecting rod, and the bottom surface of the lower part of the supporting seat is contacted with the base surface of the road.
7. The guide device of claim 6,
the bottom of the supporting seat is provided with a sliding part; wherein the content of the first and second substances,
the sliding part is contacted with the road base surface and can drive the supporting part to slide on the road surface after being impacted by force.
8. The guide device of claim 7,
the supporting seat comprises a main plate and a side plate; wherein, the first and the second end of the pipe are connected with each other,
the main board is in a shape of Chinese character 'ji', the sliding part is installed at the bottom of the main board, and the side boards which are perpendicular to the plane of the main board are arranged on the other three sides of the main board;
the connecting rod is arranged on the main plate in a penetrating mode or fixed on the side plate through bolts.
9. The guide device of claim 8,
the sliding part is provided with a sliding plate and a buffering angle; wherein the content of the first and second substances,
the sliding plate is parallel to the road base surface, reinforcing plates are vertically arranged on two side edges of the sliding plate, and the reinforcing plates are arranged at the bottom of the supporting part;
the buffer corners are arc-shaped portions, are arranged at two ends of the sliding portion and are arranged to form round corners with the base surface of the highway; one corner edge of the buffer corner is fixedly connected with the side plate, and the other corner edge of the buffer corner is fixedly connected with the sliding plate.
10. A method of using a guardrail guide as claimed in any one of claims 1 to 9, characterised by the steps of:
determining a guide angle and a guide length according to the road information and the vehicle information;
determining the length and the number of used groups of connecting rods in each group by combining the strength of the connecting rods and the structure selection of the supporting units;
arranging a supporting unit on a road base surface;
assembling a plurality of groups of connecting rods and installing the connecting rods on the supporting unit;
and connecting and fixing the assembled connecting rod with the highway guardrail, and connecting the connecting rod with the highway guardrail at an angle to complete the installation of the guide device.
CN202210797430.5A 2021-09-30 2022-07-06 Guardrail guiding device and use method Active CN115354605B (en)

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CN202122392746X 2021-09-30
CN202220236893 2022-01-28
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CN115354605B (en) * 2021-09-30 2024-06-21 山东奥邦机械设备制造有限公司 Guardrail guiding device and use method

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CN208533429U (en) * 2018-06-28 2019-02-22 江苏国强镀锌实业有限公司 Packaged type anticollision steel guard rail
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CN112281717A (en) * 2020-11-17 2021-01-29 黑龙江省公路勘察设计院 Prevent hindering snow SBM level opening guardrail
CN113123274A (en) * 2021-04-14 2021-07-16 北京深华科交通工程有限公司 Highway crash barrier
CN218116257U (en) * 2021-09-30 2022-12-23 山东奥邦机械设备制造有限公司 Guide guardrail and device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3486375A1 (en) * 2017-11-20 2019-05-22 Desami SPRL Anchoring system for a guardrail post
CN208533429U (en) * 2018-06-28 2019-02-22 江苏国强镀锌实业有限公司 Packaged type anticollision steel guard rail
CN111979956A (en) * 2020-08-31 2020-11-24 合肥森印科技有限公司 Road protection guardrail for buffering collision of automobile
CN112281717A (en) * 2020-11-17 2021-01-29 黑龙江省公路勘察设计院 Prevent hindering snow SBM level opening guardrail
CN113123274A (en) * 2021-04-14 2021-07-16 北京深华科交通工程有限公司 Highway crash barrier
CN218116257U (en) * 2021-09-30 2022-12-23 山东奥邦机械设备制造有限公司 Guide guardrail and device

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