Piston type energy dissipation guardrail

Abstract

The present invention relates to a piston-type energy-dissipating guardrail, which belongs to the field of traffic facilities. The anti-collision unit of the guardrail is surrounded by an upper sealing plate, an anti-collision steel plate, a lower sealing plate, and a concrete base plate; the anti-collision steel plate is connected to a high-strength spring, the high-strength spring is connected to an outer piston cylinder, the outer piston cylinder is connected to a piston head, the piston head extends into the inner piston cylinder, and a steel film base is provided at the bottom of the inner piston cylinder. The present invention has excellent anti-collision and energy-dissipating functions, and can fully dissipate impact energy. The impact acts on the outermost layer of soft steel, and then the force is transmitted to the piston cylinder through the spring, and the piston compresses the gas to generate heat, and finally the heat is transferred to the outside through a high-strength copper alloy with good thermal conductivity to dissipate energy, which can provide a stable damping force and shock absorption effect for the deformation of the guardrail.

Description

Technical Field

[0001] The invention belongs to the field of highway traffic facilities, and in particular relates to a piston-type energy-consuming guardrail. 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 piston-type energy-dissipating guardrail. The invention mainly transfers the impact force to the piston cylinder through the spring when the car hits the guardrail, and then the piston cylinder compresses the gas to generate heat. The material used to make the piston cylinder is a high-strength copper alloy with good thermal conductivity, which can effectively transfer the heat to the outside world, thereby effectively dissipating energy, preventing the guardrail from being damaged, and ensuring personal safety. The invention is easy to install and disassemble, provides conditions for large-scale use, and is conducive to promoting the process of industrialization.

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

[0005] A piston-type energy-absorbing guardrail is composed of a number of guardrail anti-collision monomers, and the guardrail anti-collision monomers are surrounded by an upper sealing plate, an anti-collision steel plate, a lower sealing plate, and a concrete base plate; the anti-collision steel plate is connected to a high-strength spring, the high-strength spring is connected to an outer piston cylinder, the outer piston cylinder is connected to a piston head, the piston head extends into the inner piston cylinder, a steel film base is arranged at the bottom of the inner piston cylinder, compressed air is between the inner piston cylinder and the steel film base, a concrete base plate is arranged behind the steel film base, and a connecting crossbeam pipe is arranged in the concrete base plate for the connecting crossbeam to be inserted therein; there are reserved pipes in the upper sealing plate, the anti-collision steel plate, and the lower sealing plate for vertically connecting the three, a steel cable is inserted into the reserved pipe, the steel cable is in a loose state, and is fixed with fixing bolts; the upper sealing plate and the lower sealing plate are on the outside of the outer piston cylinder It is connected by steel bar pins and fixed with fixing bolts. The steel bar pins are set in the gaps of high-strength springs. The steel bar pins are arranged symmetrically along the left and right sides of the structure to fix the upper and lower sides of the structure. There is also a reserved pipe between the upper cover plate and the concrete base plate anti-collision steel plate. The steel bar pins are inserted into the reserved pipe and fixed with fixing bolts. There is also a reserved pipe between the lower cover plate, the concrete base plate and the anti-collision steel plate. The steel bar pins are inserted into the reserved pipe and fixed with fixing bolts. A number of connecting beams are set to pass through the concrete base plate with both ends exposed. When connecting the anti-collision monomer, a hole for inserting the connecting beam is set on the vertical fixing pile, and the connecting beam is fixedly connected to the vertical fixing pile. A reinforced foundation is set in the vertical fixing pile foundation pit below the ground to connect the vertical fixing pile with the ground.

[0006] Furthermore, the side decorative sheets of the anti-collision unit are glued to the side surface of the unit by using construction adhesive, and a plurality of decorative sheets constitute a decorative pad.

[0007] Furthermore, the anti-collision steel plate is made of a low yield point steel plate.

[0008] Furthermore, the upper sealing plate, the outer piston cylinder, the inner piston cylinder, the steel membrane base and the lower sealing plate are made of high-strength copper alloy.

[0009] Furthermore, the exposed portion of the connecting beam is treated with anti-corrosion.

[0010] Furthermore, the reinforced foundation is manufactured by cast-in-place concrete.

[0011] The advantages and effects of the present invention are:

[0012] The beneficial effects of the present invention are that the installation operation of the piston-type energy-absorbing guardrail of the present invention is relatively simple, the installation and disassembly is convenient, it is conducive to promoting the process of industrialization, and the construction cost is low. The guardrail of the present invention has strong anti-collision ability and energy-absorbing ability, and can fully dissipate the impact force of the car. The impact force acts on the outer anti-collision steel plate, and the force is transmitted to the piston through the spring. The piston converts energy into heat through compressed air, and then dissipates the energy through the thermal conductivity of copper. In this way, the invention can provide stable damping force and energy-absorbing performance, and give full play to the function of the piston-type energy-absorbing guardrail. The guardrail of the present invention has good use effect, strong practicality, and easy-to-obtain accessories. If damaged, it can be well replaced. It can not only greatly increase the service life of the guardrail, but also have the ability to protect vehicles from collision damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic front view of a crash barrier unit in the piston-type energy-absorbing guardrail of the present invention.

[0014] Figure 2 It is a schematic side view of a crash barrier unit in the piston-type energy-absorbing guardrail of the present invention.

[0015] Figure 3 for Figure 1 AA cross-section diagram of .

[0016] Figure 4 It is a front view schematic diagram of multiple crash barrier units connected.

[0017] Figure 5 It is a side view schematic diagram of multiple crash barrier units connected.

[0018] In the figure: 1 is a fixing bolt, 2 is a reserved pipe, 3 is a steel cable, 4 is an upper sealing plate, 5 is an anti-collision steel plate, 6 is a high-strength spring, 7 is an outer piston cylinder, 8 is a piston head, 9 is a steel bar latch, 10 is an inner piston cylinder, 11 is compressed air, 12 is a steel membrane base, 13 is a connecting beam, 14 is a decorative pad, 15 is a vertical fixed pile foundation pit, 16 is the ground, 17 is a reinforced foundation, 18 is a vertical fixed pile, 19 is a lower sealing plate, 20 is a concrete base plate, and 21 is a decorative thin plate. DETAILED DESCRIPTION

[0019] 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.

[0020] Example: Figure 1~Figure 5As shown, a piston-type energy-absorbing guardrail is composed of several guardrail anti-collision units, including fixing bolts 1, reserved pipes 2, steel cables 3, upper sealing plates 4, anti-collision steel plates 5, high-strength springs 6, outer piston cylinders 7, piston heads 8, steel bar latches 9, inner piston cylinders 10, concrete base plates 20, steel film bases 12, connecting beams 13, decorative pads 14, vertical fixed pile foundation pits 15, ground 16, reinforced foundations 17, vertical fixed piles 18, lower sealing plates 19, and decorative thin plates 21.

[0021] The anti-collision monomer of the guardrail is surrounded by an upper sealing plate 4, an anti-collision steel plate 5, a lower sealing plate 19, and a concrete base plate 20; the anti-collision steel plate 5 is connected to a high-strength spring 6, the high-strength spring 6 is connected to an outer piston cylinder 7, the outer piston cylinder 7 is connected to a piston head 8, the piston head 8 extends into the inner piston cylinder 10, a steel film base 12 is arranged at the bottom of the inner piston cylinder 10, compressed air is between the inner piston cylinder 10 and the steel film base 12, a concrete base plate 20 is arranged behind the steel film base 12, and a connecting crossbeam 13 pipe is arranged in the concrete base plate 20, and the connecting crossbeam 13 can be inserted into it to play a fixing role; the upper sealing plate 4, the anti-collision steel plate 5, and the lower sealing plate 19 have a reserved pipe 2 for vertically connecting the three, a steel cable 3 is inserted into the reserved pipe, and the steel cable 3 is in a loose state and is fixed with a fixing bolt 1; the upper sealing plate 4 and the lower sealing plate 19 are connected to the outer side of the outer piston cylinder 7 using a steel bar bolt 9 The steel bar pins 9 are arranged symmetrically along the left and right sides of the structure to fix the upper and lower sides of the structure; a reserved pipe 2 is also provided between the upper cover plate 4 and the concrete base plate 20 anti-collision steel plate 5, and the steel bar pins 9 are inserted into the reserved pipe 2 and fixed with the fixing bolts 1; a reserved pipe 2 is also provided between the lower cover plate 19, the concrete base plate 20, and the anti-collision steel plate 5, and the steel bar pins 9 are inserted into the reserved pipe 2 and fixed with the fixing bolts 1, and a plurality of connecting beams 13 are provided to pass through the concrete base plate 20 and expose both ends. When the anti-collision monomer is connected, a hole for inserting the connecting beam 13 is provided on the vertical fixing pile 18, and the connecting beam 13 is fixedly connected to the vertical fixing pile 18, and a reinforcement foundation 17 is provided in the vertical fixing pile foundation pit 15 below the ground 16 to connect the vertical fixing pile 18 with the ground 16.

[0022] The side decorative sheets 21 of the anti-collision unit are glued to the side surface of the unit by using construction adhesive, and a plurality of decorative sheets 21 constitute a decorative pad 14 .

[0023] The anti-collision steel plate 5 is made of a low yield point steel plate.

[0024] The upper sealing plate 4, the outer piston cylinder 7, the inner piston cylinder 10, the steel film base 12 and the lower sealing plate 19 are made of high-strength copper alloy.

[0025] The exposed portion of the connecting beam 13 is treated with anti-corrosion.

[0026] The reinforced foundation 17 is manufactured by cast-in-place concrete.

[0027] 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 piston-type energy-dissipating guardrail, characterized in that: The invention is composed of a plurality of guardrail anti-collision units, wherein the guardrail anti-collision units are surrounded by an upper sealing plate (4), an anti-collision steel plate (5), a lower sealing plate (19), and a concrete base plate (20); the anti-collision steel plate (5) is connected to a high-strength spring (6), the high-strength spring (6) is connected to an outer piston cylinder (7), the outer piston cylinder (7) is connected to a piston head (8), the piston head (8) extends into an inner piston cylinder (10), a steel film base (12) is arranged at the bottom of the inner piston cylinder (10), compressed air (11) is provided between the inner piston cylinder (10) and the steel film base (12), a concrete base plate (20) is arranged behind the steel film base (12), and a connecting crossbeam (13) pipe is arranged in the concrete base plate (20), and the connecting crossbeam (13) can be inserted into the concrete base plate (20); The upper sealing plate (4), the anti-collision steel plate (5), and the lower sealing plate (19) are provided with a reserved pipe (2) for vertically connecting the three. A steel cable (3) is inserted into the reserved pipe (2). The steel cable (3) is in a relaxed state and is fixed by a fixing bolt (1). The upper sealing plate (4) and the lower sealing plate (19) are connected to each other on the outside of the outer piston cylinder (7) by a steel bar plug (9) and are fixed by a fixing bolt (1). The steel bar plug (9) is arranged in the gap of the high-strength spring (6). The steel bar plug (9) is arranged symmetrically along the left and right sides of the structure to fix the upper and lower sides of the structure. There is also a reserved pipe (2) between the upper sealing plate (4), the concrete base plate (20), and the anti-collision steel plate (5). A steel bar (3) is inserted into the reserved pipe (2). A steel bar plug (9) is inserted into the lower sealing plate (19), the concrete base plate (20), and the anti-collision steel plate (5), and a steel bar plug (9) is fixed with a fixing bolt (1). A plurality of connecting beams (13) are arranged to pass through the concrete base plate (20) and have both ends exposed. When the anti-collision unit is connected, a hole for inserting the connecting beam (13) is arranged on the vertical fixing pile (18). The connecting beam (13) is fixedly connected to the vertical fixing pile (18). A reinforcement foundation (17) is arranged in the vertical fixing pile foundation pit (15) below the ground (16), and the vertical fixing pile (18) is connected to the ground (16); The side decorative sheet (21) of the anti-collision unit is glued to the side surface of the unit with construction glue, and a plurality of decorative sheets (21) form a decorative pad (14). The upper sealing plate (4), the outer piston cylinder (7), the inner piston cylinder (10), and the lower sealing plate (19) are made of high-strength copper alloy.

2. A piston-type energy dissipation guardrail according to claim 1, characterized in that: The anti-collision steel plate (5) is made of a low yield point steel plate.

3. According to claim 1, a piston-type energy dissipation guardrail is characterized in that The exposed portion of the connecting crossbeam (13) is treated with anti-corrosion.

4. A piston-type energy dissipation guardrail according to claim 1, characterized in that The reinforced foundation (17) is manufactured by cast-in-place concrete.

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