High-protective-property metal cross beam steel guardrail

Abstract

The utility model relates to the field of traffic safety facilities, and particularly discloses a high-protection metal beam steel guardrail which comprises a steel base, a stand column is fixed on the steel base, a beam is fixed on the stand column through a pressure buffering component, a groove is formed in the stand column from top to bottom, the pressure buffering component is arranged in the groove, and the pressure buffering component is a U-shaped piece. The pressure buffering component comprises a protruding part and a supporting part, the protruding part is connected with the stand column, the supporting part is connected with the cross beam, and a buffering cavity is defined by the protruding part and the cross beam. By designing the pressure buffering component between the stand column and the cross beam, when a vehicle collides with the guardrail, collision energy is absorbed and dispersed through deformation of the pressure buffering component, meanwhile, a deformation space is reserved for the cross beam, the collision energy is continuously dispersed, and therefore impact on the vehicle and passengers is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding dust removal, in particular to a high-protective metal beam steel guardrail. Background Art

[0002] In the service process of the existing bridges, some bridges have vehicles breaking through the guardrails and falling under the bridges due to the insufficient anti-collision grade of the guardrails, which has caused a great social impact. The revised "Technical Specifications for Design of Highway Traffic Safety Facilities" (JTG D81-2017) in my country has added the eighth (HA) level of highway guardrails. Most of the cable-supported bridges such as extra-large suspension bridges and cable-stayed bridges use steel main beams. A HA-level metal beam-column guardrail is needed to meet the protection requirements of steel main beam bridges and solve the actual needs of the project.

[0003] The Chinese utility model patent application number 202020192873.8 discloses an HA-level metal beam-column guardrail, including a steel base, columns and crossbeams, which meets the eight-level collision energy absorption capacity required by the specification, can ensure the safety of bridge driving, is easy to process, simple to install, and the components can be replaced later. However, the crossbeam of this solution is directly fixed to the column, and has no buffering capacity after receiving the impact. If a collision occurs, the guardrail cannot effectively disperse and absorb the impact force, which may cause the impact force to be directly transmitted to the structural components of the guardrail and the vehicle, increasing the degree of damage to the vehicle and the possibility of injury to the occupants. Utility Model Content

[0004] The purpose of the utility model is to solve the problems mentioned in the above background technology and provide a high-protective metal beam steel guardrail.

[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0006] A high-protective metal beam steel guardrail includes a steel base, a column is fixed on the steel base, and a beam is fixed to the column through a pressure-relief component. A groove is opened on the column from top to bottom, and the pressure-relief component is arranged in the groove. The pressure-relief component is a U-shaped part, and the pressure-relief component includes a protrusion and a support part. The protrusion is connected to the column, and the support part is connected to the beam. The protrusion and the beam enclose a buffer cavity.

[0007] Preferably, the steel base is a box-type structure with a hand hole on one side, and its bottom is fixed to the steel bridge top plate.

[0008] Preferably, the column is an H-shaped member assembled and welded from steel plates, and the column comprises a column front plate and a column back plate, and a column support plate is fixed between the column front plate and the column back plate.

[0009] Preferably, the cross beams are horizontally arranged square tubes, and two groups of adjacent cross beams are fixed by connecting pipes.

[0010] Preferably, a plurality of horizontally arranged reinforcing plates are fixed to the side walls of the column support plate, and two ends of the reinforcing plates are respectively fixed to the column front plate and the column back plate.

[0011] Preferably, a vibration sensor is fixed on the reinforcing plate, the vibration sensor is electrically connected to a warning light, and the warning light is fixed on the column.

[0012] The beneficial effects of the utility model are as follows:

[0013] The novel invention designs a pressure-absorbing component between the column and the crossbeam, so that when a vehicle collides with the guardrail, the impact energy is absorbed and dispersed through the deformation of the pressure-absorbing component. At the same time, space is left for the crossbeam to deform and continue to disperse the impact energy, thereby reducing the impact on the vehicle and passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view of the utility model;

[0015] Figure 2 It is a left view of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the buffer component of the utility model;

[0017] Figure 4 It is a left side view of Embodiment 2 of the present utility model;

[0018] Figure markings: 1-steel base; 2-column; 3-pressure relief member; 30-protrusion; 31-supporting part; 4-cross beam; 5-groove; 21-column front plate; 22-column back plate; 23-column support plate; 24-reinforcement plate; 25-column bottom plate; 6-connecting pipe; 8-warning light. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0022] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0023] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] Example 1

[0025] like Figure 1-3 As shown, a highly protective metal beam steel guardrail includes a steel base 1, which is designed as a box-type structure with a hand hole on one side, and the bottom of the steel base 1 is fixed to the steel bridge top plate by welding. A column 2 is fixed to the steel base 1, and specifically, a column bottom plate 25 is welded to the bottom surface of the column 2, and the column bottom plate 25 is fastened to the steel base 1 by 10.9-grade M27*90 bolts.

[0026] The column 2 is fixed with the cross beam 4 through the pressure relief member 3. The column 2 is provided with a groove 5 from top to bottom. The pressure relief member 3 is arranged in the groove 5. The pressure relief member 3 is a U-shaped member. The pressure relief member 3 includes a protrusion 30 and a support portion 31. The protrusion 30 is connected to the column 2 through an 8.8-level M16*40 bolt. The support portion 31 is connected to the cross beam 4 through an 8.8-level M16*40 bolt. The protrusion 30 and the cross beam 4 enclose a buffer cavity. When a vehicle collides with the guardrail, the impact energy is absorbed and dispersed by the deformation of the pressure relief member. At the same time, space is left for the cross beam 4 to deform and continue to disperse the impact energy, thereby reducing the impact on the vehicle and passengers.

[0027] As a further explanation of this embodiment, the column 2 is an H-shaped component assembled and welded by steel plates. The column 2 includes a column front plate 21 and a column back plate 22. A column support plate 23 is fixed between the column front plate 21 and the column back plate 22.

[0028] As a further explanation of this embodiment, the crossbeam 4 is a horizontally arranged square tube, and two groups of adjacent crossbeams 4 are fixed by connecting tubes 6. Specifically, half of the connecting tube 6 is inserted into the crossbeam 4 and then fixed with 8.8-grade M16*180 bolts, and the other half of the connecting tube 6 is inserted into the crossbeam to be connected and fixed with 8.8-grade M16*180 bolts.

[0029] As a further explanation of this embodiment, a plurality of horizontally arranged reinforcing plates 24 are fixed to the side walls of the column support plate 23 , and two ends of the reinforcing plates 24 are respectively fixed to the column front plate 21 and the column back plate 22 .

[0030] Example 2

[0031] like Figure 4 As shown, the difference from the embodiment 1 is that a vibration sensor is fixed on the reinforcing plate 24 at the top of each column 2, and the vibration sensor is electrically connected to the warning light 8, and the warning light 8 is fixed to the column 2 by bolts. After the collision occurs, the vibration sensor sends a signal to the warning light 8, and the warning light 8 flashes after receiving the signal to alert the rear vehicle.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A highly protective metal beam steel guardrail, characterized in that: The invention comprises a steel base (1), a column (2) is fixed on the steel base (1), a cross beam (4) is fixed to the column (2) via a pressure relief component (3), a groove (5) is provided on the column (2) from top to bottom, the pressure relief component (3) is arranged in the groove (5), the pressure relief component (3) is a U-shaped component, the pressure relief component (3) comprises a protruding portion (30) and a supporting portion (31), the protruding portion (30) is connected to the column (2), the supporting portion (31) is connected to the cross beam (4), and the protruding portion (30) and the cross beam (4) enclose a buffer cavity.

2. A highly protective metal beam steel guardrail according to claim 1, characterized in that: The steel base (1) is a box-type structure with a hand hole on one side, and its bottom is fixed to the top plate of the steel bridge.

3. A highly protective metal beam steel guardrail according to claim 2, characterized in that: The column (2) is an H-shaped component assembled and welded from steel plates. The column (2) comprises a column front plate (21) and a column back plate (22). A column support plate (23) is fixed between the column front plate (21) and the column back plate (22).

4. A highly protective metal beam steel guardrail according to claim 1, characterized in that: The cross beam (4) is a horizontally arranged square tube, and two groups of adjacent cross beams (4) are fixed by a connecting pipe (6).

5. A highly protective metal beam steel guardrail according to claim 3, characterized in that: A plurality of horizontally arranged reinforcing plates (24) are fixed to the side walls of the column support plate (23), and two ends of the reinforcing plates (24) are respectively fixed to the column front plate (21) and the column back plate (22).

6. A highly protective metal beam steel guardrail according to claim 5, characterized in that: A vibration sensor is fixed on the reinforcing plate (24), the vibration sensor is electrically connected to a warning light (8), and the warning light (8) is fixed on the column (2).

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