A combined anti-collision guardrail structure

Abstract

A combined anti-collision guardrail structure belongs to the technical field of highway traffic facilities. The combined anti-collision guardrail structure includes an anti-collision pad, an energy-absorbing extrusion combined structure, an arc-shaped thin-walled energy-absorbing steel plate, an energy-absorbing filling material, a connector, a connecting plate, a connecting fixed rod, a rotating anti-collision barrel, a connecting crossbeam, an inner cylinder, an anti-collision shock-absorbing energy-absorbing material layer, a hollow area, an anti-collision soft outer cylinder, a vertical connection fixed pile and an energy-absorbing extrusion cavity. The present invention can force the vehicle body to change direction when a collision occurs between the vehicle body and the guardrail, and the installation operation of the present invention is significantly simplified, and the assembly speed is fast, which is conducive to promoting the industrialization process. The anti-collision and shock-absorbing coordinated energy-absorbing capacity of the present invention is strong, and the impact force can be fully dissipated. The anti-collision pad provided by the present invention can play a buffering and protective role. The energy-absorbing extrusion combined structure, energy-absorbing filling material, anti-collision shock-absorbing energy-absorbing material and anti-collision soft outer cylinder provided by the present invention can perform shock absorption and energy consumption, can greatly buffer the impact force, and achieve multiple shock absorption effects.

Description

Technical Field

[0001] The invention belongs to the technical field of highway traffic facilities, and in particular relates to a combined anti-collision guardrail structure. Background Art

[0002] With the development of the national economy, a large number of highways and expressways have been built or are under construction. At present, the protective devices on both sides of expressways and highways are composed of columns and protective plates located on the upper part thereof. The protective plates are made of steel plates. The two are rigid materials and are rigidly connected. When a car loses control and hits the protective plates, the protective devices can prevent the car from turning over into the waterproof ditches on both sides of the expressway or rushing into the opposite lane and crashing. However, practice has proved that the protective plates of the above structure have no buffering function. Under the strong impact of the out-of-control car at high speed, the protective plates often break, and the out-of-control car rushes into the opposite lane and crashes, causing the car to be destroyed and people to die; especially the broken protective plates injure people more seriously, and cannot effectively prevent the car from turning over into the waterproof ditches on both sides of the expressway or rushing into the opposite lane and crashing. On the other hand, the protective plates made of steel plates are also permeable, lose their pressure resistance and anti-collision effects, and have a short service life. With the large-scale construction of expressways, urban interchanges, etc. and the substantial increase in the number of cars in the world, the incidence of traffic accidents is also on the rise. At present, columns and guardrails are both rigid materials. The existing guardrails on the market do not have the function of buffering and shock absorption when in use. When a car hits the guardrail, it can only rely on the deformation and damage of the guardrail to absorb energy, and the deformation and energy absorption capabilities are limited. Moreover, the guardrail is easy to break under the impact of the car, causing the guardrail to be unable to be used normally, and it is also easy to cause secondary damage to the safety of vehicles and crew members. In summary, how to solve the problem of limited deformation and energy absorption capabilities of existing highway guardrails has become a problem that technicians in this field need to solve. Summary of the invention

[0003] In order to solve the above-mentioned technical problems, the present invention provides a combined anti-collision guardrail structure, which has good overall structural coordination and connection performance, can significantly improve energy consumption efficiency, can help the vehicle body change the direction of movement, can significantly improve the safety performance of the vehicle body, reduce the energy exchange between the vehicle body and the guardrail, and significantly reduce the collision force exerted on the vehicle body.

[0004] In order to achieve the above-mentioned object, the present invention provides a combined anti-collision guardrail structure, including an anti-collision pad, an energy-absorbing extrusion combined structure, an arc-shaped thin-walled energy-absorbing steel plate, an energy-absorbing filling material, a connecting piece, a connecting plate, a connecting fixing rod, a rotating anti-collision barrel, a connecting crossbeam, an inner cylinder, an anti-collision shock-absorbing energy-absorbing material layer, a hollow area, an anti-collision soft outer cylinder, a vertical connection fixing pile and an energy-absorbing extrusion cavity;

[0005] The left and right sides of the connecting crossbeam are fixedly connected to the vertical connecting fixing piles, and anti-collision pads are arranged on the front and rear sides of the connecting crossbeam and the vertical connecting fixing piles. A plurality of hollow areas are evenly opened between the connecting crossbeam and the vertical connecting fixing piles, and a connecting fixing rod is inserted in each of the hollow areas, and the upper and lower ends of the connecting fixing rod pass through the upper and lower connecting crossbeams, and the outer wall of each connecting fixing rod is sleeved with a rotating anti-collision barrel, and a plurality of energy-absorbing extrusion combination structures are symmetrically arranged on the front and rear sides of the connecting crossbeam;

[0006] The rotating anti-collision barrel comprises an anti-collision soft outer cylinder and an inner cylinder, and a layer of anti-collision shock-absorbing energy-absorbing material is filled between the inner cylinder and the anti-collision soft outer cylinder;

[0007] The energy-absorbing extrusion combination structure is surrounded by an arc-shaped thin-walled energy-absorbing steel plate and a connecting plate. The cavity surrounded by the arc-shaped thin-walled energy-absorbing steel plate and the connecting plate is an energy-absorbing extrusion cavity. The inner wall of the energy-absorbing extrusion cavity is filled with energy-absorbing filling material. The connecting piece passes through the connecting plate to fix the energy-absorbing extrusion combination structure on the front and rear sides of the connecting beam.

[0008] Preferably, the thin-walled energy-absorbing steel plate and the connecting plate are both made of low-yield-point energy-absorbing steel plate.

[0009] Preferably, the energy dissipation filling material is foamed aluminum.

[0010] Preferably, the vertical connecting fixing piles are provided with holes for inserting the connecting cross beams.

[0011] Preferably, the anti-collision, shock-absorbing and energy-absorbing material is made of high-damping rubber.

[0012] Preferably, the anti-collision pad and the anti-collision soft outer cylinder are both made of elastic material.

[0013] Preferably, the connecting member is an I-shaped connecting member.

[0014] Beneficial effects: The present invention can force the vehicle body to change direction when a collision occurs between the vehicle body and the guardrail, and the installation operation of the present invention is significantly simplified, and the assembly speed is fast, which is conducive to promoting the industrialization process and makes industrial disassembly very convenient. The anti-collision and shock-absorbing coordinated energy-consuming capacity of the present invention is strong, and the impact force can be fully dissipated. The anti-collision pad provided by the present invention can play a buffering and protective role. The energy-consuming extrusion combined structure, energy-consuming filling material, anti-collision shock-absorbing energy-consuming material and anti-collision soft outer cylinder provided by the present invention can perform shock absorption and energy consumption, can greatly buffer the impact force, and achieve multiple shock absorption effects. The present invention can provide stable damping force and shock absorption energy-consuming capacity when a collision occurs. The overall structure has good coordinated connection performance, which can significantly improve the energy consumption efficiency. When a collision occurs, the rotating anti-collision barrel provided not only consumes energy, but also can rotate relatively, which can help the vehicle body change the direction of movement, and force the vehicle body to return to the normal driving direction, which can significantly improve the safety performance of the vehicle body, reduce the energy exchange between the vehicle body and the guardrail, and significantly reduce the collision force suffered by the vehicle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a combined anti-collision guardrail structure provided by the present invention;

[0016] Figure 2 A cross-sectional view of the combined anti-collision guardrail structure provided by the present invention at point A;

[0017] Figure 3 In the combined anti-collision guardrail structure provided by the present invention Figure 2 An enlarged schematic diagram of

[0018] Figure 4 A schematic structural diagram of an energy-dissipating extrusion combined structure in a combined anti-collision guardrail structure provided by the present invention;

[0019] Figure 5 A schematic diagram of the structure of the connecting member in the combined anti-collision guardrail structure provided by the present invention;

[0020] Figure 6 A front view of the connection between the fixed rod, the rotating anti-collision barrel and the connecting crossbeam in the combined anti-collision guardrail structure provided by the present invention;

[0021] Figure 7 A top view of the connection between the fixed rod, the rotating anti-collision barrel and the connecting crossbeam in the combined anti-collision guardrail structure provided by the present invention;

[0022] Figure 8 A top view of the crash bucket in the combined crash barrier structure provided by the present invention;

[0023] Fig. 9 A front view of the connection between the connecting cross beam and the vertical connecting fixing pile in the combined anti-collision guardrail structure provided by the present invention;

[0024] Fig.10 A top view of the connection between the connecting cross beam and the vertical connecting fixing piles in the combined anti-collision guardrail structure provided by the present invention.

[0025] In the figure: 1 is an anti-collision pad; 2 is an energy-absorbing extrusion combined structure; 3 is an arc-shaped thin-walled energy-absorbing steel plate; 4 is an energy-absorbing filling material; 5 is a connecting piece; 6 is a connecting plate; 7 is a connecting fixing rod; 8 is a rotating anti-collision barrel; 9 is a connecting beam; 10 is an inner cylinder; 11 is an anti-collision, shock-absorbing and energy-absorbing material layer; 12 is a hollow area; 13 is an anti-collision soft outer cylinder; 14 is a vertical connecting fixing pile; 15 is an energy-absorbing extrusion cavity. DETAILED DESCRIPTION

[0026] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0027] like Figure 1-10 As shown, the present invention provides a combined anti-collision guardrail structure, including an anti-collision pad 1, an energy-absorbing extrusion combined structure 2, an arc-shaped thin-walled energy-absorbing steel plate 3, an energy-absorbing filling material 4, a connecting piece 5, a connecting plate 6, a connecting fixing rod 7, a rotating anti-collision barrel 8, a connecting crossbeam 9, an inner cylinder 10, an anti-collision shock-absorbing energy-absorbing material layer 11, a hollow area 12, an anti-collision soft outer cylinder 13, a vertical connection fixing pile 14 and an energy-absorbing extrusion cavity 15;

[0028] The left and right sides of the connecting crossbeam 9 are fixedly connected to the vertical connecting fixing piles 14, and the front and rear sides of the connecting crossbeam 9 and the vertical connecting fixing piles 14 are provided with anti-collision pads 1, and a plurality of hollow areas 12 are evenly opened between the connecting crossbeam 9 and the vertical connecting fixing piles 14, and a connecting fixing rod 7 is inserted into each of the hollow areas 12, and the upper and lower ends of the connecting fixing rod 7 pass through the upper and lower connecting crossbeams 9, and the outer wall of each of the connecting fixing rods 7 is sleeved with a rotating anti-collision barrel 8, and a plurality of energy-absorbing extrusion composite structures 2 are symmetrically arranged on the front and rear sides of the connecting crossbeam 9;

[0029] The rotating anti-collision barrel 8 comprises an anti-collision soft outer barrel 13 and an inner barrel 10, and an anti-collision shock-absorbing energy-absorbing material layer 11 is filled between the inner barrel 10 and the anti-collision soft outer barrel 13;

[0030] The energy-absorbing extrusion composite structure 2 is surrounded by an arc-shaped thin-walled energy-absorbing steel plate 3 and a connecting plate 6. The cavity surrounded by the arc-shaped thin-walled energy-absorbing steel plate 3 and the connecting plate 6 is an energy-absorbing extrusion cavity 15. The inner wall of the energy-absorbing extrusion cavity 15 is filled with energy-absorbing filling material 4. The connecting piece 5 passes through the connecting plate 6 to fix the energy-absorbing extrusion composite structure 2 on the front and rear sides of the connecting beam 9.

[0031] As a further improvement of the present invention, the arc-shaped thin-walled energy-absorbing steel plate 3 and the connecting plate 6 are both made of low-yield-point energy-absorbing steel plates.

[0032] As a further improvement of the present invention, the energy dissipation filling material 4 is made of foamed aluminum.

[0033] As a further improvement of the present invention, the vertical connection fixing piles 14 are provided with holes for the connection cross beams 9 to be inserted into.

[0034] As a further improvement of the present invention, the anti-collision, shock-absorbing and energy-absorbing material layer 11 is made of high-damping rubber.

[0035] As a further improvement of the present invention, the anti-collision pad 1 and the anti-collision soft outer tube 13 are both made of elastic material.

[0036] As a further improvement of the present invention, the connecting member 5 is an I-shaped connecting member.

[0037] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A combined anti-collision guardrail structure, characterized in that: The invention comprises an anti-collision pad (1), an energy-absorbing extrusion composite structure (2), an arc-shaped thin-walled energy-absorbing steel plate (3), an energy-absorbing filling material (4), a connecting piece (5), a connecting plate (6), a connecting fixing rod (7), a rotating anti-collision barrel (8), a connecting crossbeam (9), an inner tube (10), an anti-collision shock-absorbing energy-absorbing material layer (11), a hollow area (12), an anti-collision soft outer tube (13), a vertical connecting fixing pile (14) and an energy-absorbing extrusion cavity (15); the left and right sides of the connecting crossbeam (9) are fixedly connected to the vertical connecting fixing pile (14); the front and rear sides of the connecting crossbeam (9) and the vertical connecting fixing pile (14) are provided with an anti-collision pad (1); a plurality of hollow areas (12) are evenly provided between the connecting crossbeam (9) and the vertical connecting fixing pile (14); a connecting fixing rod (7) is inserted into each of the hollow areas (12); and the upper and lower ends of the connecting fixing rod (7) penetrate the upper and lower connecting crossbeams (9). The outer wall of each connecting and fixing rod (7) is sleeved with a rotating anti-collision barrel (8), and a plurality of energy-absorbing extrusion combined structures (2) are symmetrically arranged on the front and rear sides of the connecting crossbeam (9); the rotating anti-collision barrel (8) comprises an anti-collision soft outer cylinder (13) and an inner cylinder (10), and an anti-collision shock-absorbing energy-absorbing material layer (11) is filled between the inner cylinder (10) and the anti-collision soft outer cylinder (13); the energy-absorbing extrusion combined structure (2) is composed of an arc-shaped thin-walled energy-absorbing steel plate (3 ) and a connecting plate (6), the cavity formed by the arc-shaped thin-walled energy-absorbing steel plate (3) and the connecting plate (6) is an energy-absorbing extrusion cavity (15), the inner wall of the energy-absorbing extrusion cavity (15) is filled with energy-absorbing filling material (4), the connecting piece (5) passes through the connecting plate (6) to fix the energy-absorbing extrusion combined structure (2) on the front and rear sides of the connecting crossbeam (9); the arc-shaped thin-walled energy-absorbing steel plate (3) and the connecting plate (6) are both made of low-yield-point energy-absorbing steel plates; The energy dissipation filling material (4) is foamed aluminum.

2. A combined anti-collision guardrail structure according to claim 1, characterized in that: The vertical connection fixing pile (14) is provided with a hole for inserting the connection crossbeam (9).

3. The combined anti-collision guardrail structure according to claim 1, characterized in that: The anti-collision, shock-absorbing and energy-absorbing material layer (11) is made of high-damping rubber.

4. The combined anti-collision guardrail structure according to claim 1, characterized in that: The anti-collision pad (1) and the anti-collision soft outer cylinder (13) are both made of elastic material.

5. The combined anti-collision guardrail structure according to claim 1, characterized in that: The connecting member (5) is an I-shaped connecting member.

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