CN110924335A - Elastic sliding block type anti-collision device used in cooperation with expressway isolation barrier wall - Google Patents
Elastic sliding block type anti-collision device used in cooperation with expressway isolation barrier wall Download PDFInfo
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- CN110924335A CN110924335A CN201911072131.XA CN201911072131A CN110924335A CN 110924335 A CN110924335 A CN 110924335A CN 201911072131 A CN201911072131 A CN 201911072131A CN 110924335 A CN110924335 A CN 110924335A
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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
- E01F15/14—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
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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
- E01F15/14—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
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- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention relates to an elastic sliding block type anti-collision device used for being matched with an expressway isolation fence wall, which comprises a sliding block locking mechanism fixed to the expressway isolation fence wall, wherein the isolation fence wall is a semi-rigid guardrail or a hard cement wall; the sliding block locking mechanism comprises a fixed base plate, a sliding block and a guide rail, the fixed base plate is fixed on the isolated gate walls on the two sides of the road, the sliding block is a wedge-shaped sliding block, the guide rail is arranged in an annular slide way integrated with the sliding block, and the two ends of the guide rail are fixed on the fixed base plate to jointly form a sliding mechanism; when the vehicle impacts the sliding block, the wedge-shaped sliding block absorbs the impact energy of the vehicle through elastic deformation to reduce damage to drivers and passengers, and the wedge-shaped sliding block can slide along the direction limited by the guide rail, and the sliding direction of the wedge-shaped sliding block is the same as the running direction of the vehicle, so that the effect of guiding an accident vehicle is achieved, the situation that the running direction is changed after the vehicle is impacted and the accident vehicle is collided to form a secondary accident due to the fact that the running vehicle at a high speed cannot react in time after the vehicle is impacted is prevented from running obliquely along a road.
Description
Technical Field
The invention relates to the technical field of collision protection, in particular to an elastic sliding block type anti-collision device used for being matched with an expressway isolation fence wall.
Background
The separating wall in the middle of the highway is generally built by single-layer cement hard materials, when a vehicle collides with the separating wall, the cement wall body basically cannot generate plastic deformation to absorb the collision kinetic energy of the vehicle, but the vehicle climbs by an inclined plane to absorb the collision energy. In the prior art, a double-layer wave-shaped beam arresting device used as a guardrail of a separation wall in the middle of an expressway absorbs impact energy by means of deformation of wave-shaped beams. If set up the guardrail in the diaphram both sides, then be sliding friction between guardrail and the vehicle, coefficient of friction is very big, and this will cause the vehicle direction to lose control and bounce back, injures car and personnel, still can cause secondary accident of crashing, consequently, expects to provide a low-cost elastic sliding buffer stop, reduces the injury that the diaphragm caused to vehicle and personnel in the middle of the high-speed vehicle striking highway of going, reduces the traffic accident mortality.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an elastic slide block type anti-collision device used for being matched with an expressway isolation fence wall; the device comprises a sliding block locking mechanism, wherein the sliding block locking mechanism is fixed to a high-speed highway isolation fence wall which is a guardrail or a hard cement wall; the sliding block locking mechanism comprises a fixed base plate, a sliding block and a guide rail, the fixed base plate is fixed on the isolation barrier walls on two sides of a road, the sliding block is a wedge-shaped sliding block, the guide rail is arranged in an annular slide way integrated with the sliding block, and two ends of the guide rail are connected and fixed on the fixed base plate through fasteners to jointly form a sliding mechanism; when a vehicle impacts the sliding block, the wedge-shaped sliding block absorbs the impact energy of the vehicle through elastic deformation to reduce damage to drivers and passengers, the wedge-shaped sliding block can slide along the direction limited by the guide rail, the sliding direction of the wedge-shaped sliding block is the same as the driving direction of the vehicle, so that the effect of guiding an accident vehicle is achieved, the situation that the driving direction is changed after the vehicle impacts to run along the inclined direction of a road, the subsequent vehicle running at a high speed is prevented from colliding the accident vehicle in time of reaction to form a secondary accident, the anti-collision problem of the middle isolation barrier wall on the highway, the culvert on the highway road and the hard side wall on the viaduct can be solved, and the damage of the middle isolation barrier of the highway to the accident vehicle and the drivers and passengers can be reduced to a great extent.
The technical scheme of the invention is as follows:
an elastic sliding block type anti-collision device used for being matched with an expressway isolation fence wall comprises a sliding block locking mechanism, wherein the sliding block locking mechanism is fixed to the expressway isolation fence wall, and the isolation fence wall is a guardrail or a hard cement wall; the sliding block locking mechanism comprises a fixed base plate, an elastic sliding block and a guide rail, wherein the fixed base plate is fixed on the isolation fence wall of the expressway; the elastic sliding block is a wedge-shaped sliding block, the guide rail is arranged in an annular slide way integrated with the elastic sliding block, and two ends of the guide rail are arranged on the fixed base plate through fasteners to jointly form a sliding mechanism; when a vehicle impacts the sliding block, the wedge-shaped elastic sliding block generates elastic deformation to absorb impact energy of the vehicle, meanwhile, the wedge-shaped elastic sliding block slides along the direction limited by the guide rail, the sliding direction of the wedge-shaped elastic sliding block is the same as the running direction of the vehicle, so that the effect of guiding an accident vehicle is achieved, the situation that the running direction is changed after the vehicle is impacted and the accident vehicle is collided to form a secondary accident due to the fact that the running vehicle at a high speed runs in time without reaction is prevented, and the accident vehicle is prevented from being collided.
Preferably, the impact contact surface of the elastic sliding block is an inclined surface, the impact contact surface of the elastic sliding block is a first surface, the side surface of the sliding block opposite to the impact contact surface is a second surface, and the annular slide way is arranged on the second surface.
Preferably, the slope of the inclined surface of the wedge-shaped elastic sliding block is 15 degrees to 45 degrees.
Preferably, the annular slide is integrally formed from a composite textile material.
Preferably, the wedge-shaped elastic sliding block comprises an outer wrapping layer and an inner filler, the outer wrapping layer is made of a composite textile material, and the inner filler is made of an elastic material.
Preferably, elastic solid or hollow spherical fillers are filled in the wedge-shaped elastic sliding block to play a role in deformation energy absorption.
Preferably, the slide block locking mechanisms are uniformly arranged on the isolation fence wall along the advancing direction of the automobile, the distance between two adjacent wedge-shaped slide blocks is 200 mm-500 mm, and the automobile speed gradually decreases until the automobile stops as the advancing automobile continuously impacts the slide blocks. The advancing direction of the vehicle can be adjusted to be consistent with the axial direction of the highway along with the sliding guide effect of the sliding block, so that the injury to passengers and the damage to the vehicle are reduced to the greatest extent, and the probability of secondary accidents can be reduced.
Preferably, the preset sliding distance of each elastic sliding block is 40mm to 100 mm; the sliding distance can reduce the reaction force to the vehicle, and the advancing direction of the vehicle is adjusted at the same time, so that the vehicle can move forwards along the axial direction of the road, and the vehicle can decelerate point by point along with the impact of the vehicle and different sliding blocks one by one.
Preferably, the fixed substrate includes three portions, which are a first portion, a second portion and a third portion, respectively, the second portion is configured to fix the slider, the first portion and the third portion are configured to fix the slider locking mechanism to the fixed substrate, the second portion of the fixed substrate is disposed in parallel with the second surface of the slider, the first portion of the fixed substrate and the third portion of the fixed substrate are disposed on two sides of the second portion of the fixed substrate, respectively, and the first portion of the fixed substrate and the third portion of the fixed substrate have an included angle with the second portion of the fixed substrate, respectively.
Compared with the prior art, the invention has the advantages that:
the elastic slide block type anti-collision device for being matched with the isolation fence wall of the expressway is made of flexible materials, does not comprise metal components such as metal fences, supports, rotating shafts, bearings and connecting bolts, is low in cost and can be applied in a large scale. According to the invention, the outer wall of the sliding block is made of chemical fiber fabric with high toughness and tensile strength, the elastic solid or hollow ball is filled in the middle of the sliding block to serve as an energy absorption material, and the geometric shape and size of the sliding block, the distance between the sliding blocks and the rigidity coefficient K of the sliding block can design different parameters for the highest speed limit of the vehicle according to different road sections, so that the lowest cost is realized on the premise of ensuring the safety of the vehicle. The energy absorption and vehicle alignment functions of the slider elastomer are simpler and more effective than those of a shaft type revolving drum, and the vehicle and passengers can be better protected.
Drawings
Fig. 1 is a schematic structural view of an elastic slider type impact prevention device for use with a freeway barrier wall according to the present invention.
Fig. 2 is a schematic view of the construction of a single wedge-shaped slider of the resilient slider-type impact protection device according to the invention for use in a strong cooperation with a freeway barrier.
Fig. 3 is a structural schematic diagram of the arrangement mode of a plurality of wedge-shaped sliders of the elastic slider type anti-collision device used for being matched with the expressway isolation fence wall.
Detailed Description
The advantages of the above and/or additional aspects of the present invention will become apparent and readily appreciated from the following description of the embodiments taken in conjunction with the accompanying drawings of which:
an elastic slide block type anti-collision device used in cooperation with a highway isolation fence wall as shown in fig. 1 to 3 comprises a slide block locking mechanism, wherein the slide block locking mechanism is fixed to the highway isolation fence wall, and the isolation fence wall is a semi-rigid guardrail or a hard cement wall; the sliding block locking mechanism comprises a fixed base plate, an elastic sliding block and a guide rail, wherein the fixed base plate is hung on the semi-rigid guardrail wave-shaped beam through hooks at the upper end and the lower end, and the base plate is locked and fixed on the wave-shaped beam through screws; when a vehicle impacts the sliding block, the wedge-shaped elastic sliding block generates elastic deformation to absorb impact energy of the vehicle, meanwhile, the wedge-shaped elastic sliding block slides along the direction limited by the guide rail, the sliding direction of the wedge-shaped elastic sliding block is the same as the running direction of the vehicle, so that the effect of guiding an accident vehicle is achieved, the situation that the running direction is changed after the vehicle is impacted and the accident vehicle is collided to form a secondary accident due to the fact that the running vehicle at a high speed runs in time without reaction is prevented, and the accident vehicle is prevented from being collided. The striking contact surface of slider is the inclined plane, the striking contact surface of slider is the first surface, with the side of the slider that the striking contact surface is relative is the second surface, the setting of annular slide is in the second surface. The inclination of the inclined plane of the wedge-shaped elastic sliding block is 15 degrees to 45 degrees. The width of the sliding block is between 150 and 450mm, and the height of the sliding block is between 250 and 800 mm. The annular slide way is integrally formed by composite textile materials.
The wedge-shaped sliding block comprises an outer wrapping layer and an inner filler, the outer wrapping layer is made of a composite textile material, and the inner filler is made of an elastic material. The inner part of the sliding block is filled with solid or hollow spherical filler, the diameter of the elastomer is 25mm to 55 mm, and the elastomer is determined to be mixed (playing a role in deformation and energy absorption) with the same diameter or different diameters according to the design grade of the highway. The sliding block locking mechanisms are uniformly arranged on the isolation grid wall along the advancing direction of the automobile, the distance between every two adjacent wedge-shaped sliding blocks is 200 mm-500 mm, and the automobile speed gradually decreases until the automobile stops along with the continuous impact of the advancing automobile on the sliding blocks. The advancing direction of the vehicle can be adjusted to be consistent with the axial direction of the highway along with the sliding guide effect of the sliding block, so that the injury to passengers and the damage to the vehicle are reduced to the greatest extent, and the probability of secondary accidents can be reduced.
The preset sliding distance of each elastic sliding block is 40mm to 100 mm; the sliding distance can reduce the reaction force to the vehicle, and the advancing direction of the vehicle is adjusted at the same time, so that the vehicle can move forwards along the axial direction of the road, and the vehicle can decelerate point by point along with the impact of the vehicle and different sliding blocks one by one. The fixed substrate comprises three parts, namely a first part, a second part and a third part, wherein the second part is configured to fix a sliding block, the first part and the third part are configured to fix the sliding block locking mechanism to the fixed substrate, the second part of the fixed substrate is arranged in parallel with the second surface of the sliding block, the first part of the fixed substrate and the third part of the fixed substrate are respectively positioned at two sides of the second part of the fixed substrate, and the first part of the fixed substrate and the third part of the fixed substrate respectively form an included angle with the second part of the fixed substrate.
As shown in fig. 1 to 3, in an elastic slider type impact prevention device 1 for use in cooperation with a barrier wall of an expressway, slider locking mechanisms are respectively fixed to guard rails 2 on both sides of a road.
Preferably, the slider locking mechanism includes a fixed base plate 3, a slider 4 and a guide rail 5, the fixed base plate is fixed on the guardrails on both sides of the road, the slider is a wedge-shaped slider 4, preferably, the impact contact surface of the slider is an inclined surface, the impact contact surface of the slider 4 is a first surface, the side surface of the slider opposite to the impact contact surface is a second surface, and the second surface is provided with a slide 6. The guide rail is arranged in the slideway.
Preferably, the guide 5 is housed in an annular slide 6 integral with the slider 4, the two ends of said guide being connected to the fixed base plate by means of fasteners, for example bolts, jointly constituting the sliding mechanism.
When a vehicle impacts the sliding block, as shown in fig. 3, the wedge-shaped elastic sliding block slides along the direction limited by the guide rail due to the action of the F1, the sliding direction is the same as the driving direction of the vehicle, so that the effect of guiding the accident vehicle is achieved, the situation that the vehicle changes the driving direction after the vehicle impacts and runs along the road in an inclined way is prevented, and the subsequent vehicle which runs at high speed is prevented from colliding with the accident vehicle in time to form a secondary accident.
Preferably, the slope of the inclined surface of the wedge-shaped slider is 15 to 45 degrees.
Preferably, the slideway is an annular slideway, and the annular slideway is integrally formed by a composite textile material. Preferably, the composite textile material is a high strength industrial composite fabric.
Preferably, the wedge-shaped sliding block comprises an outer wrapping layer and an inner filling material, the outer wrapping layer is preferably made of a composite textile material, and the inner filling material is preferably made of an elastic material. When the vehicle collides with the elastic sliding block at a speed, the elastic sliding block elastically deforms to absorb the impact energy of the vehicle, so that the injury to the driver and the passenger of the vehicle is reduced.
Preferably, the filled elastomer in the slider is solid or hollow spherical filler, so that the deformation energy absorption function is realized.
As shown in fig. 3, the force F acts on the slider, and the slider slides in the direction of F1 force, so that the component force F1 can be increased, and the component force F2 can be reduced, thereby reducing the injury to the passengers and the damage to the vehicle.
Preferably, the slider locking mechanisms are uniformly arranged on the partition wall along the advancing direction of the automobile. Preferably, the distance between two adjacent wedge-shaped sliding blocks is 200mm to 500 mm.
Preferably, each of the elastic sliders has a predetermined sliding distance.
Preferably, the sliding distance is between 40mm and 100mm, the sliding distance can reduce the reaction force on the vehicle, the advancing direction of the vehicle is adjusted at the same time, the vehicle can move forwards along the axial direction of the road, and in addition, the vehicle decelerates point by point along with the impact of the vehicle and different sliding blocks one by one.
The geometric dimension and the distance T of the slide block for guiding collision avoidance and the hardness, the elasticity and the diameter of the filled elastic ball can determine different parameters through experiments according to different design grades of the highway so as to reduce the cost to the maximum extent.
Preferably, the fixed base plate comprises three parts, a first part, a second part and a third part, respectively, the second part being configured for fixing the slider, the first part and the third part being configured for fixing the slider locking mechanism to the fixed base plate, for example, by fasteners. Preferably, the second portion of the fixed substrate is parallel to the second surface of the slider, the first portion of the fixed substrate and the third portion of the fixed substrate are respectively located at two sides of the second portion of the fixed substrate, and the first portion of the fixed substrate and the third portion of the fixed substrate respectively form an included angle with the second portion of the fixed substrate.
In parallel, the slider locking mechanism according to the present invention can be applied to various types of highway barrier walls, such as guardrails or hard cement walls. When the slider locking mechanism according to the present invention is used for a hard cement wall, since the cement wall has an upward slope, an accident vehicle may climb upward to relieve part of the impact force at the time of impact.
The separation fence walls between the upper and lower rows of the expressway are all made of hard materials or semi-rigid materials, and when a vehicle running at high speed collides, great damage is caused to vehicle-mounted personnel and vehicles. From the perspective of the isolation barrier, the cause of damage is analyzed, and firstly, the isolation barrier is designed to be rigid and has high hardness, and cannot generate plastic deformation to absorb the impact energy of the automobile. Although the semi-rigid design can absorb impact energy by means of deformation, the semi-rigid design is based on the qualification criterion given by JTGB05-1-2013 'evaluation standard for safety performance of highway guardrails': the rigid guardrail is less than 20G, and the semi-rigid guardrail is less than 10G. This index is far from reaching the level of protection of personnel safety. Compared with the acceleration borne by a ship-based aircraft pilot, the acceleration is only 5G, which is 2-4 times smaller than that of a common person. When a vehicle impacts the grid wall at a certain angle, the force forming a certain angle with the grid wall can be decomposed into a force parallel to the original driving direction of the vehicle, namely a force parallel to the direction of the expressway, and a reaction force component perpendicular to the grid wall, wherein the component force is a main cause of damage to the vehicle and people. And secondly, the friction coefficient of the material of the isolation grid wall is large, so that large sliding friction resistance is generated between the isolation grid wall and the vehicle, the direction of the vehicle is out of control, and the traveling direction of the vehicle is changed, so that secondary accidents are easily caused. The anti-collision system has two design points, one is designed into an elastic material, the elastic material is additionally arranged in the elastic sliding block, so that the elastic sliding block has certain elastic deformation when a vehicle is collided, and the anti-collision system is used for absorbing the collision energy of the vehicle and preventing the vehicle from moving towards the opposite direction to a certain extent. And secondly, the sliding block is designed into a sliding block with a certain thickness, when a vehicle impacts the sliding block, the sliding block can slide for a certain distance along the traveling direction of the vehicle besides certain elastic deformation, so that the frictional resistance can be greatly reduced, and the function of guiding the vehicle is simultaneously completed. Thus, as the traveling vehicle continuously hits the slider, the vehicle speed gradually decreases until the vehicle stops. The advancing direction of the vehicle can be adjusted to be consistent with the axial direction of the highway along with the sliding guide effect of the sliding block, so that the injury to passengers and the damage to the vehicle are reduced to the greatest extent, and the probability of secondary accidents can be reduced.
The anti-collision device of the middle isolation barrier of the highway mainly surrounds two main points to play a role in anti-collision. Firstly, when the automobile impacts the anti-collision device, the impact kinetic energy of the automobile is absorbed through elastic deformation; and secondly, the sliding component on the anti-collision device slides a certain distance along with the advancing direction of the automobile, so that the advancing direction of the automobile is guided. The key points of the invention are as follows: the anti-collision sliding block does not rotate around a rigid shaft, but slides for a certain distance along the automobile traveling direction, so that the guiding effect on the automobile traveling direction is achieved. And (II) the anti-collision sliding block is made of chemical fiber fabric with high toughness and tensile strength, and solid or hollow spherical filler with high elasticity is filled in the middle of the sliding block to play a role in deformation and energy absorption. The design is characterized in that the anti-collision sliding block can be designed into different geometric shapes (length, width and height) and distances among the sliding blocks according to the highest speed limit of an automobile in different speed limit sections on a highway and sensitive sections which are easy to cause traffic jam, such as an elevated overpass, a culvert and the like. On the premise of ensuring the anti-collision performance of a certain standard, the cost of the device is reduced to the maximum extent. And (IV) the design does not need any rigid metal mechanism supporting piece, rotating piece, fastening piece and the like, and is entirely made of flexible materials. The purpose of the design is different from that of the existing road traffic anti-collision wall, the anti-collision wall mainly solves the problem that the middle separation fence of the highway can play a certain protection role when the car running at high speed collides, and can also be applied to the protective walls on two sides of cities and other road traffic accident sensitive areas such as viaducts and culverts to be made into an anti-collision type.
Alternatively, the collision contact surface of the wedge slider may be a flat surface or a curved surface, as long as the collision buffering function thereof is achieved, which falls within the scope of the present invention.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. Those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the communication may be direct, indirect via an intermediate medium, or internal to both elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "at least three" means two or more unless otherwise specified.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. An elastic sliding block type anti-collision device used for being matched with an expressway isolation fence wall is characterized by comprising a sliding block locking mechanism, wherein the sliding block locking mechanism is fixed to the expressway isolation fence wall, and the isolation fence wall is a semi-rigid guardrail or a hard cement wall; the sliding block locking mechanism comprises a fixed base plate, an elastic sliding block and a guide rail, wherein the fixed base plate is hung on the semi-rigid guardrail wave-shaped beam through hooks at the upper end and the lower end, the base plate is locked and fixed on the wave-shaped beam through screws, the elastic sliding block is a wedge-shaped sliding block, the guide rail is arranged in an annular slide way integrated with the elastic sliding block, and the two ends of the guide rail are connected and fixed on the fixed base plate through fasteners to jointly form a sliding mechanism; when a vehicle impacts the elastic sliding block, the wedge-shaped elastic sliding block generates elastic deformation to absorb impact energy of the vehicle, and meanwhile, the wedge-shaped elastic sliding block slides along the direction limited by the guide rail, and the sliding direction of the wedge-shaped elastic sliding block is the same as the running direction of the vehicle, so that the effect of guiding an accident vehicle is achieved, and the running direction is prevented from changing to run along the road obliquely after the vehicle impacts.
2. The resilient block-type bump guard of claim 1, wherein the resilient block has an impact contact surface that is a sloped surface, a first surface opposite the impact contact surface, and a second surface opposite the impact contact surface, the annular slide being disposed on the second surface.
3. An elastic slider type impact preventer according to claim 2, wherein the inclined surface of the wedge-shaped elastic slider has an inclination of 15 to 45 degrees, a width of 150 to 450mm and a height of 250 to 800 mm.
4. An elastomeric slider type bump guard for use with a freeway barrier as claimed in claim 3, wherein the annular runner is integrally formed of a composite textile material.
5. The elastomeric slider type bump guard of claim 4, wherein the wedge shaped elastomeric slider comprises an outer coating of a composite textile material and an inner filler of an elastomeric material.
6. The elastic slide block type anti-collision device for being matched with the expressway isolation barrier wall as claimed in claim 5, wherein the wedge-shaped elastic slide block is filled with an elastic body which is a solid or hollow spherical filler, the diameter of the elastic body is 25mm to 55 mm, and the elastic bodies are of the same diameter or different diameters and are mixed according to the expressway design grade.
7. An elastomeric slider bump guard for use with a freeway barrier wall according to claim 6 wherein the slider locking mechanisms are uniformly arranged on the barrier wall in the direction of vehicle travel and the distance between two adjacent wedge sliders is 200mm to 500 mm.
8. An elastic slider type impact preventer according to claim 7, wherein the predetermined sliding distance of each elastic slider is 40mm to 100 mm.
9. The device of claim 8, wherein the fixed base plate comprises three portions, namely a first portion, a second portion and a third portion, the second portion is configured to fix the slider, the first portion and the third portion are configured to fix the slider locking mechanism to the fixed base plate, the second portion of the fixed base plate is parallel to the second surface of the elastic slider, the first portion of the fixed base plate and the third portion of the fixed base plate are respectively located on two sides of the second portion of the fixed base plate, and the first portion of the fixed base plate and the third portion of the fixed base plate are respectively provided with an included angle with the second portion of the fixed base plate.
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| CN201911072131.XA CN110924335A (en) | 2019-11-05 | 2019-11-05 | Elastic sliding block type anti-collision device used in cooperation with expressway isolation barrier wall |
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| CN201911072131.XA CN110924335A (en) | 2019-11-05 | 2019-11-05 | Elastic sliding block type anti-collision device used in cooperation with expressway isolation barrier wall |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111648279A (en) * | 2020-06-18 | 2020-09-11 | 济南市公安局交通警察支队 | Ramp port protection device and use method |
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| CN208949788U (en) * | 2018-02-08 | 2019-06-07 | 韩英泉 | Elastic helix drum-type anticollision device, collision-prevention device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111648279A (en) * | 2020-06-18 | 2020-09-11 | 济南市公安局交通警察支队 | Ramp port protection device and use method |
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