A highway central anti-collision isolation guardrail device

Abstract

A highway central anti-collision isolation guardrail device belongs to the field of highway traffic facilities, including a high-efficiency energy-absorbing thin-walled mild steel plate with energy-absorbing grooves, an anti-collision protection pad, a lightweight thin-walled arched mild steel plate, a cable, an SMA coordinated limit reset wire, etc. The reinforcement foundation is arranged under the ground, and a reinforcement base is arranged on the upper part of the reinforcement foundation, and a guardrail is arranged on the upper part of the reinforcement base. The upper part of the guardrail is provided with an upper sealing plate, and a plurality of high-efficiency energy-absorbing thin-walled mild steel plates with energy-absorbing grooves are arranged on the left and right sides of the guardrail, respectively, and an anti-collision protection pad is arranged on the outer side of the lightweight thin-walled arched mild steel plate. A tension and compression rod is arranged, one end of which is connected to the lower side of the guardrail, and the other end is connected to the ground, and a shock absorbing device is arranged on the tension and compression rod. The guardrail of the present invention is suitable for use as a central anti-collision isolation guardrail of a two-way highway, with low cost, simple manufacture, and convenient disassembly. If damaged, it can be well replaced, which is conducive to promoting the process of industrialization.

Description

Technical Field

[0001] The invention belongs to the field of highway traffic facilities, and in particular relates to a central anti-collision isolation guardrail device for a highway. 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 central anti-collision isolation guardrail device for a highway. The anti-collision isolation guardrail has strong anti-collision and shock-absorbing coordinated energy consumption capabilities, and is very suitable for use as a central anti-collision isolation guardrail for a two-way highway. It has low cost, simple production, and convenient disassembly. If damaged, it can be well replaced, which is conducive to promoting the industrialization process.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] The highway central anti-collision isolation guardrail device mainly includes a high-efficiency energy-absorbing thin-walled mild steel plate with an energy-absorbing groove, an obliquely connected thin-walled mild steel plate, a vertically connected thin-walled mild steel plate, an energy-absorbing groove, an anti-collision protection pad, a lightweight thin-walled arched mild steel plate, a cable, a fixing bolt, an SMA coordinated limit reset wire, a high-damping spring, a lightweight energy-absorbing material, a tension and compression rod, a shock-absorbing device, a high-strength fixed hinge, a hinge coordinated connecting rod, a common fixed hinge, a reinforced foundation, a reinforced base, a guardrail rod, an upper cover plate, the ground and a welded connection hinge. In the structure of the highway central anti-collision isolation guardrail device, a reinforced foundation is set under the ground, and a reinforced A reinforcement base is arranged on the upper part of the solid foundation, a guardrail is arranged on the upper part of the reinforcement base, an upper sealing plate is arranged on the upper side of the guardrail, and a plurality of high-efficiency energy-absorbing thin-walled soft steel plates with energy-absorbing grooves are arranged on the left and right sides of the guardrail, respectively. The energy-absorbing grooves of the high-efficiency energy-absorbing thin-walled soft steel plates with energy-absorbing grooves face outward, and the high-efficiency energy-absorbing thin-walled soft steel plates with energy-absorbing grooves are connected by obliquely connected thin-walled soft steel plates and vertically connected thin-walled soft steel plates, and the obliquely connected thin-walled soft steel plates and the vertically connected thin-walled soft steel plates form an energy-absorbing groove, and the other end of the obliquely connected thin-walled soft steel plate is connected to a welded connection hinge, and a plurality of cables are used to pass through the vertical The thin-walled mild steel plate and the guardrail are connected to each other, and the two ends are fixed with fixing bolts. A lightweight thin-walled arched mild steel plate is arranged on the outside of the high-efficiency energy-absorbing thin-walled mild steel plate with an energy-absorbing groove, and an anti-collision protection pad is arranged on the outside of the lightweight thin-walled arched mild steel plate. The lightweight thin-walled arched mild steel plate and the welding connection hinge are connected by welding, and a number of high-strength fixed hinges are arranged between adjacent welding connection hinges. Ordinary fixed hinges are arranged between the high-strength fixed hinges and the high-strength fixed hinges, and between the high-strength fixed hinges and the welding connection hinges. The ordinary fixed hinges and the high-strength fixed hinges and the welding connection hinges on both sides are connected by hinge coordination connecting rods. The high-strength fixed hinges are all in contact with the lightweight thin-walled arched soft steel plates arranged on the outside thereof, and SMA coordinated limit reset wires are arranged between adjacent high-strength fixed hinges and high-strength fixed hinges, and between high-strength fixed hinges and welded connection hinges for connection, and a number of high-damping springs are arranged, one end of which is connected to the ordinary fixed hinge, and the other end is connected to the vertically connected thin-walled soft steel plate, and lightweight energy-absorbing materials are arranged in the cavity surrounded by the high-efficiency energy-absorbing thin-walled soft steel plate with energy-absorbing grooves and the lightweight thin-walled arched soft steel plate, and tension and compression rods are arranged, one end of which is connected to the lower side of the guardrail, and the other end is connected to the ground, and a shock absorbing device is arranged on the tension and compression rods.

[0006] The obliquely connected thin-walled mild steel plates, the vertically connected thin-walled mild steel plates and the lightweight thin-walled arched mild steel plates are made of low yield point steel plates.

[0007] The lightweight energy-absorbing material is made of foamed aluminum.

[0008] The hinge and connecting rod are made of elastic material.

[0009] The shock absorbing device is made of flat spring.

[0010] Two adjacent obliquely connected thin-walled mild steel plates at the middle of the same side of the guardrail share a welded connection hinge.

[0011] The beneficial effects of the present invention are:

[0012] The anti-collision isolation guardrail has strong anti-collision and shock-absorbing coordinated energy-consuming capabilities, which can make the anti-collision isolation guardrail fully dissipate the impact force of the collision, and the impact force acts on the anti-collision protection pad and the lightweight thin-walled arched soft steel plate, and then the high-strength fixed hinge and the ordinary fixed hinge squeeze the high-efficiency energy-consuming thin-walled soft steel plate with energy-absorbing grooves and the high-damping spring to consume energy. The set SMA coordinated limit reset wire and the high-strength fixed hinge cooperate with the force to provide a stable damping force when the device is deformed and a reset function after deformation. The whole device has good coordinated connection performance, and the impact force is dispersed and transmitted, which can significantly improve the energy consumption efficiency. The present invention has good use effect and strong practicability. Anti-collision devices are arranged on both sides of the guardrail, which is very suitable for use as a central anti-collision isolation guardrail for a two-way highway. At the same time, the construction is simple, the cost is low, the production is simple, and the disassembly is convenient. If there is any damage, it can be well replaced, which is conducive to promoting the industrialization process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the central anti-collision isolation guardrail device of the highway of the present invention;

[0014] Figure 2 Schematic diagram of a high-efficiency energy-dissipating thin-walled mild steel plate with energy-absorbing grooves.

[0015] In the figure: 1 is a high-efficiency energy-absorbing thin-walled mild steel plate with an energy-absorbing groove; 2 is a thin-walled mild steel plate with an oblique connection; 3 is a thin-walled mild steel plate with a vertical connection; 4 is an energy-absorbing groove; 5 is an anti-collision protection pad; 6 is a lightweight thin-walled arched mild steel plate; 7 is a cable; 8 is a fixing bolt; 9 is an SMA coordinated limit reset wire; 10 is a high-damping spring; 11 is a lightweight energy-absorbing material; 12 is a tension and compression rod; 13 is a shock-absorbing device; 14 is a high-strength fixed hinge; 15 is a hinge-coordinating connecting rod; 16 is an ordinary fixed hinge; 17 is a reinforced foundation; 18 is a reinforced base; 19 is a guardrail; 20 is an upper cover plate; 21 is the ground; 22 is a welded connection hinge. DETAILED DESCRIPTION

[0016] In order to further illustrate the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and embodiments, but they should not be construed as limiting the protection scope of the present invention.

[0017] A highway central anti-collision isolation guardrail device, such as Figure 1~Figure 2As shown, it mainly includes a high-efficiency energy-absorbing thin-walled mild steel plate 1 with an energy-absorbing groove, an obliquely connected thin-walled mild steel plate 2, a vertically connected thin-walled mild steel plate 3, an energy-absorbing groove 4, an anti-collision protection pad 5, a lightweight thin-walled arched mild steel plate 6, a cable 7, a fixing bolt 8, an SMA coordinated limit reset wire 9, a high-damping spring 10, a lightweight energy-absorbing material 11, a tension and compression rod 12, a shock absorbing device 13, a high-strength fixed hinge 14, a hinge coordinated connecting rod 15, a common fixed hinge 16, a reinforced foundation 17, a reinforced base 18, a guardrail rod 19, an upper sealing plate 20, a ground 21 and a welded connection hinge 22. In the structure of the highway central anti-collision isolation guardrail device, a reinforced foundation 17 is arranged below the ground 21, and a reinforced foundation 1 A reinforcement base 18 is arranged on the upper part of the reinforcement base 18, a guardrail 19 is arranged on the upper part of the reinforcement base 18, an upper sealing plate 20 is arranged on the upper side of the guardrail 19, and a plurality of high-efficiency energy-absorbing thin-walled soft steel plates 1 with energy-absorbing grooves are arranged on the left and right sides of the guardrail 19, respectively. The energy-absorbing groove 4 of the high-efficiency energy-absorbing thin-walled soft steel plate 1 with energy-absorbing grooves faces outward, and the high-efficiency energy-absorbing thin-walled soft steel plate 1 with energy-absorbing grooves is connected by an obliquely connected thin-walled soft steel plate 2 and a vertically connected thin-walled soft steel plate 3, and the obliquely connected thin-walled soft steel plate 2 and the vertically connected thin-walled soft steel plate 3 form an energy-absorbing groove 4, and the energy-absorbing groove 4 is a trapezoidal groove, and the other end of the obliquely connected thin-walled soft steel plate 2 is connected to a welded connection hinge 22, and a plurality of cables 7 are used. The thin-walled mild steel plate 3 and the guardrail 19 are connected through the vertical connection, and the two ends are fixed with fixing bolts 8. A lightweight thin-walled arched mild steel plate 6 is arranged on the outside of the high-efficiency energy-absorbing thin-walled mild steel plate 1 with an energy-absorbing groove, and an anti-collision protection pad 5 is arranged on the outside of the lightweight thin-walled arched mild steel plate 6. The lightweight thin-walled arched mild steel plate 6 and the welding connection hinge 22 are connected by welding. A plurality of high-strength fixed hinges 14 are arranged between adjacent welding connection hinges 22, and an ordinary fixed hinge 16 is arranged between the high-strength fixed hinge 14 and the high-strength fixed hinge 14, and between the high-strength fixed hinge 14 and the welding connection hinge 22. The ordinary fixed hinge 16 and the high-strength fixed hinge 14 and the welding connection hinge 22 on both sides thereof are connected by hinge coordination connecting rods 1. 5 are connected, the high-strength fixed hinges 14 are in contact with the lightweight thin-walled arched mild steel plates 6 arranged on the outside thereof, SMA coordinated limit reset wires 9 are arranged between adjacent high-strength fixed hinges 14 and high-strength fixed hinges 14, and between the high-strength fixed hinges 14 and the welded connection hinges 22 for connection, a plurality of high-damping springs 10 are arranged, one end of which is connected to the ordinary fixed hinge 16, and the other end is connected to the vertically connected thin-walled mild steel plate 3, a lightweight energy-absorbing material 11 is arranged in the cavity surrounded by the high-efficiency energy-absorbing thin-walled mild steel plate 1 with the energy-absorbing groove and the lightweight thin-walled arched mild steel plate 6, a tension and compression rod 12 is arranged, one end of which is connected to the lower side of the guardrail rod 19, and the other end is connected to the ground 21, and a shock absorbing device 13 is arranged on the tension and compression rod 12.

[0018] The obliquely connected thin-walled mild steel plates 2, the vertically connected thin-walled mild steel plates 3, and the lightweight thin-walled arched mild steel plates 6 are made of low yield point steel plates.

[0019] The light energy-consuming material 11 is made of foamed aluminum.

[0020] The hinge and connecting rod 15 are made of elastic material.

[0021] The shock absorbing device 13 is made of a flat spring.

[0022] Two adjacent obliquely connected thin-walled mild steel plates 2 at the middle position on the same side of the guardrail 19 share a welding connection hinge 22 .

[0023] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A highway central anti-collision isolation guardrail device, characterized in that: The invention comprises a high-efficiency energy-absorbing thin-walled mild steel plate (1) with an energy-absorbing groove, an anti-collision protection pad (5), a light-weight thin-walled arched mild steel plate (6), a cable (7), an SMA coordinated limit reset wire (9), a high-damping spring (10), a light-weight energy-absorbing material (11), a tension and compression rod (12), a shock absorbing device (13), a high-strength fixed hinge (14), a hinge-coordinating connecting rod (15), a common fixed hinge (16), a reinforced foundation (17), a reinforced base (18), a guardrail (19), an upper sealing plate (20), and a welded connecting hinge (22). The reinforced foundation (17) is arranged under the ground, the upper part of the reinforced foundation (17) is provided with a reinforced base (18), the upper part of the reinforced base (18) is provided with a guardrail (19), and the An upper sealing plate (20) is provided on the upper part of the guardrail (19), and a plurality of high-efficiency energy-absorbing thin-walled mild steel plates (1) with energy-absorbing grooves are respectively provided on the left and right sides of the guardrail (19), wherein the high-efficiency energy-absorbing thin-walled mild steel plates (1) with energy-absorbing grooves are formed by connecting an obliquely connected thin-walled mild steel plate (2) and a vertically connected thin-walled mild steel plate (3), and the obliquely connected thin-walled mild steel plate (2) and the vertically connected thin-walled mild steel plate (3) form an energy-absorbing groove (4), and the energy-absorbing groove (4) of the high-efficiency energy-absorbing thin-walled mild steel plate (1) with energy-absorbing grooves faces outward, and the other end of the obliquely connected thin-walled mild steel plate (2) is connected to a welding connection hinge (22), and the vertically connected thin-walled mild steel plate (3) is connected to the guardrail (19) via a cable (7), and the two ends are connected via a fixed The invention relates to a method for fixing a high-efficiency energy-consuming thin-walled mild steel plate (1) with an energy-absorbing groove, wherein a light-weight thin-walled arched mild steel plate (6) is arranged on the outer side of the high-efficiency energy-consuming thin-walled mild steel plate (1), and an anti-collision protection pad (5) is arranged on the outer side of the light-weight thin-walled arched mild steel plate (6), wherein the light-weight thin-walled arched mild steel plate (6) is welded to a welding connection hinge (22), and a plurality of high-strength fixed hinges (14) are arranged between adjacent welding connection hinges (22), and an ordinary fixed hinge (16) is arranged between the high-strength fixed hinge (14) and the high-strength fixed hinge (14), and between the high-strength fixed hinge (14) and the welding connection hinge (22), and the ordinary fixed hinge (16) and the high-strength fixed hinge (14) and the welding connection hinge (22) on both sides thereof are connected via a hinge coordination connecting rod (15), and the high-strength fixed hinge (14) They are in contact with the lightweight thin-walled arched mild steel plate (6) arranged on the outside thereof, and are connected via SMA coordinated limit reset wires (9) between adjacent high-strength fixed hinges (14) and high-strength fixed hinges (14), and between the high-strength fixed hinges (14) and the welded connection hinges (22). A plurality of high-damping springs (10) are arranged, one end of which is connected to the common fixed hinge (16), and the other end is connected to the vertically connected thin-walled mild steel plate (3). A lightweight energy-absorbing material (11) is arranged in the cavity surrounded by the high-efficiency energy-absorbing thin-walled mild steel plate (1) with energy-absorbing grooves and the lightweight thin-walled arched mild steel plate (6). A tension and compression rod (12) is arranged, one end of which is connected to the lower side of the guardrail rod (19), and the other end is connected to the ground. A shock-absorbing device (13) is arranged on the tension and compression rod (12); The obliquely connected thin-walled mild steel plates (2), the vertically connected thin-walled mild steel plates (3), and the lightweight thin-walled arched mild steel plates (6) are made of low yield point steel plates; The light energy-consuming material (11) is foamed aluminum.

2. The highway central anti-collision isolation guardrail device according to claim 1, characterized in that: The hinged connecting rod (15) is an elastic connecting rod.

3. The highway central anti-collision isolation guardrail device according to claim 1, characterized in that: The shock absorbing device (13) is a flat spring.

4. The highway central anti-collision isolation guardrail device according to claim 1, characterized in that: Two obliquely connected thin-walled mild steel plates (2) adjacent to each other at the middle position on the same side of the guardrail rod (19) are connected via a welded connection hinge (22).

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