A highway vehicle restraint device

Abstract

The present invention relates to a highway vehicle restraint device, comprising: a corrugated plate, a plurality of anti-collision blocks, a plurality of anchorage seats, a plurality of steel strand assemblies and a plurality of columns. One end of the column is fixedly connected to the corrugated plate through the anti-collision block, and the other end is anchored in the roadbed; the anchorage seats are respectively fixedly connected to the anti-collision blocks and the corrugated plate, and the end of the steel strand assembly is fixedly connected to the anchorage seat; the steel strand assembly is arranged behind the wave crest of the corrugated plate. The present invention adds steel strands at the wave crest on the back of the corrugated plate of the corrugated beam guardrail. The special anti-collision block presses the steel strands tightly at the wave crest, and an anchorage seat is arranged at a certain interval to tighten the steel strands, forming a certain prestress effect. Finally, the corrugated beam guardrail and the cable guardrail are perfectly combined together, greatly enhancing the anti-impact and blocking capabilities of the corrugated beam guardrail.

Description

Technical Field

[0001] The invention relates to the technical field of guardrails, and in particular to a highway vehicle restraint device. Background Art

[0002] The guardrails provided by the prior art are mainly corrugated beam guardrails, but when a larger vehicle speeds and collides with the corrugated guardrail, its collision energy may exceed the protection level of the guardrail itself. After the corrugated guardrail is hit by an out-of-control vehicle, the embedded columns are the main force-bearing parts, so the columns will immediately bend and deform toward the outside of the guardrail. At this time, the corrugated plates are pulled by the columns to form a certain tension force and block and guide the out-of-control vehicle. However, when the embedded columns are unable to resist the impact of the out-of-control vehicle and produce excessive bending or even collapse, the connection between the corrugated plates and the columns will break due to excessive impact tension. Therefore, no effective tension force can be formed between the corrugated plates, and the vehicle cannot be blocked, resulting in the out-of-control vehicle running off the road and causing a major accident. Summary of the invention

[0003] The invention provides a highway vehicle restraint device, which solves the problem that the traditional corrugated guardrail has insufficient anti-collision force, blocking force and guiding performance when subjected to a severe impact.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] A highway vehicle restraint device, comprising: a corrugated plate 1, a plurality of anti-blocking blocks 2, a plurality of anchoring seats 3, a plurality of steel strand assemblies and a plurality of columns 4, one end of each column 4 being fixedly connected to the corrugated plate 1 through the anti-blocking block 2, and the other end of each column 4 being anchored in the roadbed;

[0006] The anchor seat 3 is fixedly connected to the anti-blocking block 2 and the corrugated plate 1 respectively, and the end of the steel strand assembly is fixedly connected to the anchor seat 3;

[0007] The steel strand assembly is arranged behind the crest of the corrugated plate 1 .

[0008] Preferably, the anchor seat 3 matches the shape of the corrugated plate 1 .

[0009] Preferably, the anti-blocking block 2 is U-shaped, and a plurality of legs are provided at the opening of the U-shape, and a slot 21 is provided at the top of the legs;

[0010] A connecting block 22 is provided between two adjacent supporting legs, and the distance from the connecting block 22 to the top of the supporting leg matches the distance from the trough to the crest of the corrugated plate 1 .

[0011] Preferably, a plurality of first connection holes 9 are provided on one end of the column 4 and the anti-blocking block 2 , and the column 4 and the anti-blocking block 2 are fixedly connected via the first connection holes 9 .

[0012] Preferably, second connection holes 10 are provided on the connection block 22, the anchoring seat 3 and the corrugated plate 1, and the connection block 22, the anchoring seat 3 and the corrugated plate 1 are fixedly connected through the second connection holes 10.

[0013] Preferably, third connection holes 11 are further provided on the corrugated plate 1 and the anchoring seat 3, and the corrugated plate 1 and the anchoring seat 3 are fixed through the third connection holes 11.

[0014] Preferably, the steel strand assembly includes a steel strand 5, a first anchor head 6, a second anchor head 7 and an adjusting screw 8. One end of the first anchor head 6 is fixedly connected to the steel strand 5, and the other end is fixedly connected to one end of the second anchor head 7;

[0015] The other end of the second anchor head 7 is connected to one end of the adjusting screw 8, and the other end of the adjusting screw 8 is connected to the anchoring seat 3.

[0016] Preferably, a fourth connection hole 12 is provided on the anchoring seat 3. One end of the adjusting screw 8 is connected to the second anchor head 7, and the other end is connected to the anchoring seat 3 through the fourth connection hole 12.

[0017] Preferably, the steel strand 5 is arranged in the card slot 21, and the size of the card slot 21 is larger than the size of the steel strand 5.

[0018] By implementing the above technical solutions, the following technical effects are achieved: A highway vehicle restraint device provided by the present invention adds steel strands at the wave crests on the back of the corrugated plate of the corrugated beam guardrail. Through a specially designed dedicated anti-collision block, the steel strands are tightly pressed against the wave crests, and an anchoring seat is arranged at intervals to tighten the steel strands, forming a certain prestress effect. Finally, the corrugated beam guardrail and the cable guardrail are perfectly combined together, greatly enhancing the anti-impact and blocking capabilities of the corrugated beam guardrail. The function of the steel strands located on the back of the corrugated plate is to increase the tensioning ability of the entire guardrail. When excessive collision energy forces the embedded column to further bend and deform or even fall down towards the outside of the guardrail, the steel strands located on the back of the corrugated plate will also generate tensile force due to pulling. This tensile force will prevent the embedded column from continuing to bend or even fall down towards the outside of the guardrail and share a part of the tensile force generated by the collision, thereby ensuring the overall blocking, energy absorption and guiding capabilities of the guardrail and effectively preventing out-of-control vehicles from straddling the guardrail and rushing out of the road surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of a highway vehicle restraint device provided by the present invention;

[0020] Figure 2 is a schematic structural diagram of the corrugated plate provided by the present invention;

[0021] Figure 3Structural schematic diagram of the anchoring seat provided by the present invention;

[0022] Figure 4 Structural schematic diagram of the column and the anti-collision block provided by the present invention. Detailed implementation manners

[0023] In order to better understand the technical solution of the present invention, the embodiments provided by the present invention will be described in detail below with reference to the accompanying drawings.

[0024] Embodiment 1

[0025] As Figure 1 shown, it can be understood that a highway vehicle restraint device provided in this embodiment includes: a corrugated plate 1, a plurality of anti-collision blocks 2, a plurality of anchoring seats 3, a plurality of steel strand assemblies, and a plurality of columns 4. One end of the column 4 is fixedly connected to the corrugated plate 1 through the anti-collision block 2, and the other end is anchored in the roadbed; the anchoring seats 3 are respectively fixedly connected to the anti-collision blocks 2 and the corrugated plate 1, and the end of the steel strand assembly is fixedly connected to the anchoring seat 3; the steel strand assembly is arranged behind the wave crest of the corrugated plate 1. The anchoring seat 3 matches the shape of the corrugated plate 1.

[0026] In this embodiment, in order to solve the problem of insufficient anti-collision strength of the traditional corrugated guardrail, without changing the original structure of the corrugated guardrail, a steel strand assembly is added at the wave crest on the back of the corrugated plate 1. The special anti-collision block 2 tightly presses the steel strand assembly at the wave crest, and an anchoring seat 3 is arranged at intervals to tighten the steel strand to form a certain prestress effect. Since the anchoring seat 3 needs to tighten the steel strand 5 and press it behind the corrugated plate 1, the shape of the anchoring seat 3 matches the corrugated plate 1. Finally, the corrugated beam guardrail and the cable guardrail are perfectly combined together, greatly enhancing the anti-impact and blocking ability of the corrugated beam guardrail.

[0027] Embodiment 2

[0028] As Figures 1-4 shown, a highway vehicle restraint device provided in this embodiment, the anti-collision block 2 is U-shaped, and a plurality of supporting feet are provided at the opening of the U-shape, and a card slot 21 is provided at the top of the supporting feet; a connecting block 22 is provided between adjacent two supporting feet, and the distance from the connecting block 22 to the top of the supporting feet matches the distance from the wave trough to the wave crest of the corrugated plate 1. A plurality of first connection holes 9 are provided at one end of the column 4 and on the anti-collision block 2, and the column 4 and the anti-collision block 2 are fixedly connected through the first connection holes 9. A plurality of second connection holes 10 are provided on the connecting block 22, the anchoring seat 3 and the corrugated plate 1, and the connecting block 22, the anchoring seat 3 and the corrugated plate 1 are fixedly connected through the second connection holes 10. A plurality of third connection holes 11 are further provided on the corrugated plate 1 and the anchoring seat 3, and the corrugated plate 1 and the anchoring seat 3 are fixed through the third connection holes 11.

[0029] The strand assembly includes a steel strand 5, a first anchor head 6, a second anchor head 7, and an adjusting screw 8. One end of the first anchor head 6 is fixedly connected to the steel strand 5, and the other end is fixedly connected to one end of the second anchor head 7. The other end of the second anchor head 7 is connected to one end of the adjusting screw 8, and the other end of the adjusting screw 8 is connected to the anchoring seat 3. The anchoring seat 3 is provided with a fourth connection hole 12. One end of the adjusting screw 8 is connected to the second anchor head 7, and the other end is connected to the anchoring seat 3 through the fourth connection hole 12. The steel strand 5 is threaded through the card slot 21, and the size of the card slot 21 is larger than the size of the steel strand 5.

[0030] In this embodiment, at one end of a set of parallel planes in the column 4, a first connection hole 9 is provided for anchoring connection with the anti-collision block 2. The other end of the column 4 is driven downward into the roadbed; as Figure 4 shown, the anti-collision block 2 is integrally U-shaped. On its two parallel planes, first connection holes 9 for anchoring connection with the column 4 are provided. The anti-collision block 2 is also provided with connecting plates, and each connecting plate is provided with second connection holes 10 having a certain center distance from each other. The positions of the second connection holes 10 correspond one by one to the second connection holes 10 on the corrugated plate 1 for anchoring connection between the two. The U-shaped opening of the anti-collision block 2 is designed with six supporting feet, and each supporting foot is provided with a card slot 21 at its top. The card slot 21 in this embodiment is a circular card slot 21, and in other embodiments, it can be square or the like. The relative height difference between the card slot 21 and the connecting plate is consistent with the dimension from the trough plane to the peak top of the non-impact surface of the corrugated plate 1. The size of the card slot 21 is slightly larger than the outer diameter of the steel strand, facilitating the steel strand to pass through and subsequent tensioning. When the anti-collision block 2 is connected to the corrugated plate, the steel strand in the card slot 21 is tightly pressed by the supporting feet of the anti-collision block 2 on the peak of the back of the corrugated plate, which can share a part of the pulling tension for the corrugated plate. The anti-collision block 2 in this embodiment is U-shaped, and in other embodiments, it can also be set in shapes such as V-shaped and W-shaped.

[0031] In this embodiment, as Figure 3 shown, the cross-section of the anchoring seat 3 is W-shaped, and the outer dimension of its installation surface completely fits the outer shape of the back of the corrugated plate 1. On the two planes at the bottom of the peak in the anchoring seat 3, second connection holes 10 with a certain distance are provided, corresponding one by one to the second connection holes 10 on the corrugated plate 1 and the second connection holes 10 on the connecting plate. Third connection holes 11 are provided at corresponding positions on the four inclined surfaces of the anchoring seat 3, and their positions correspond to the third connection holes 11 on the corrugated plate.

[0032] In this embodiment, a connecting pile for connecting the steel strand is welded to the other side of the anchoring seat 3. A part of the connecting piles are distributed at the two ends of the outermost two inclined planes of the anchoring seat 3, and the other part of the connecting piles are arranged at the two ends of the middle trough of the anchoring seat 3. Each connecting pile is processed with a fourth connecting hole 12 for passing through the adjusting screw 8 to connect the steel strand. The two ends of the steel strand are anchored and connected to the first anchor head 6 by using an anchor core, and one end is connected to one. The adjusting screw 8 penetrates into the second anchor head 7 to form a group of adjusting screws 8. The steps on the adjusting screw 8 are stuck in the stepped holes in the second anchor head 7 to connect the two, and pulling them in opposite directions along their axes cannot separate them. The threaded end of the group of adjusting screws 8 penetrates into the fourth connecting hole 12 reserved in the connecting pile on the anchoring seat 3, and a washer and a nut are sleeved on the threaded end of the adjusting screw 8. The steel strand with the first anchor head 6 at both ends connects the first anchor head 6 and the second anchor head 7 on the group of adjusting screws 8 in sequence. The connection between them is achieved by using the self - contained thread. Finally, the steel strand is towed and tensioned by adjusting the nut on the group of adjusting screws 8 to achieve a certain prestress effect. The value of the tensile force can be controlled by using a torque wrench during tensioning.

[0033] The above has introduced in detail a highway vehicle restraint device provided by an embodiment of the present invention. For those of ordinary skill in the art, according to the idea of the embodiment of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A highway vehicle restraint device, characterized in that, Including: A corrugated plate (1), a number of anti-blocking blocks (2), a number of anchoring seats (3), a number of steel strand assemblies and a number of columns (4). One end of the column (4) is fixedly connected to the corrugated plate (1) through the anti-blocking block (2), and the other end is anchored in the roadbed. The anchoring seats (3) are respectively fixedly connected to the anti-blocking blocks (2) and the corrugated plate (1), and the end of the steel strand assembly is fixedly connected to the anchoring seat (3). The steel strand assembly is arranged behind the wave crest of the corrugated plate (1). The anti-blocking block (2) is U-shaped, and a number of supporting feet are provided at the opening of the U-shape, and a card slot (21) is provided at the top of the supporting feet. A connecting block (22) is provided between two adjacent supporting feet, and the distance from the connecting block (22) to the top of the supporting feet is matched with the distance from the wave trough to the wave crest of the corrugated plate (1). The steel strand assembly includes a steel strand (5), a first anchor head (6), a second anchor head (7) and an adjusting screw rod (8). One end of the first anchor head (6) is fixedly connected to the steel strand (5), and the other end is fixedly connected to one end of the second anchor head (7). The other end of the second anchor head (7) is connected to one end of the adjusting screw rod (8), and the other end of the adjusting screw rod (8) is connected to the anchoring seat (3). The anchoring seat (3) is matched with the shape of the corrugated plate (1).

2. The road vehicle restraint device according to claim 1, characterized in that, A number of first connection holes (9) are provided at one end of the column (4) and on the anti-blocking block (2), and the column (4) and the anti-blocking block (2) are fixedly connected through the first connection holes (9).

3. The road vehicle restraint device according to claim 1, characterized in that, A number of second connection holes (10) are provided on the connecting block (22), the anchoring seat (3) and the corrugated plate (1), and the connecting block (22), the anchoring seat (3) and the corrugated plate (1) are fixedly connected through the second connection holes (10).

4. The road vehicle restraint device according to claim 1, characterized in that, A number of third connection holes (11) are further provided on the corrugated plate (1) and the anchoring seat (3), and the corrugated plate (1) and the anchoring seat (3) are fixed through the third connection holes (11).

5. The road vehicle restraint device according to claim 1, characterized in that, A number of fourth connection holes (12) are provided on the anchoring seat (3). One end of the adjusting screw rod (8) is connected to the second anchor head (7), and the other end is connected to the anchoring seat (3) through the fourth connection holes (12).

6. The road vehicle restraint device according to claim 1, wherein, The steel strand (5) is threaded through the card slot (21), and the size of the card slot (21) is larger than the size of the steel strand (5).

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