A highway guardrail

Abstract

The utility model relates to the technical field of guardrails, and proposes a highway guardrail, which includes support columns, and there are several support columns, which are arranged side by side on both sides of the highway and fixed vertically to the road surface, and the side walls of the support columns are provided with support grooves and clamping grooves; a cross bar is fixed between every two support columns, and the two ends of the cross bar are respectively inserted into the support grooves of the support columns on both sides, and a fastening plate is sleeved on the cross bar; a limit block, the limit block includes a clamping part and a limit plate, the clamping part is clamped into the clamping groove and has an interference fit therewith, and at this time the limit plate can close the notch of the support groove to prevent the cross bar from falling out; the fastening plate is close to the limit block and the surface of the support column and fixed to the two. The beneficial effects of the utility model are: when the cross bar of the highway guardrail is damaged, the cross bar can be replaced conveniently and quickly, while ensuring the strength of the guardrail and absorbing the collision energy of the vehicle.

Description

Technical Field

[0001] The utility model relates to the technical field of guardrails, and specifically, to a highway guardrail. Background Art

[0002] Highway guardrail is a longitudinal energy-absorbing structure that absorbs collision energy by self-deformation or vehicle climbing, thereby changing the direction of vehicle travel, preventing vehicles from running off the road or entering the opposite lane, and minimizing injuries to passengers. When the guardrail collides with a vehicle and deforms, its connection strength and effect will be greatly affected, so it needs to be replaced and repaired in a timely manner. Utility Model Content

[0003] The utility model provides a highway guardrail, which can conveniently and quickly replace a crossbar when the highway crossbar is damaged, while ensuring the strength of the guardrail and absorbing the collision energy of vehicles.

[0004] To this end, this application provides a highway guardrail, and the technical solution adopted is as follows:

[0005] It includes support columns, which are in number and located side by side on both sides of the highway and fixed vertically to the road surface, and the side walls of the support columns are provided with support grooves and clamping grooves; a cross bar is fixed between every two support columns, and the two ends of the cross bar are respectively inserted into the support grooves of the support columns on both sides, and a fastening plate is sleeved on the cross bar; a limit block, which includes a clamping part and a limit plate, and the clamping part is clamped into the clamping groove and has an interference fit therewith, and at this time the limit plate can close the notch of the support groove to prevent the cross bar from falling out; the fastening plate is tightly attached to the surface of the limit block and the support column and fixed to the two.

[0006] A further technical solution is that the support column is a rectangular columnar structure, and its side walls are surrounded by a front side, a rear side, a left side and a right side, wherein the side facing the road surface is the front side, the support groove is opened on the front side, and the clamping groove is opened on the left side.

[0007] A further technical solution is that there are two limit plates, which are respectively located on both sides of the clamping portion. When the clamping portion is clamped into the clamping groove, the two limit plates are respectively tightly fixed to the front side and the rear side of the support column.

[0008] A further technical solution is that the inner wall of the support groove matches the shape of the outer wall of the cross bar.

[0009] A further technical solution is that there are a plurality of supporting grooves and snap-in grooves on each supporting column, which are used to match and insert a plurality of cross bars and limit blocks.

[0010] A further technical solution is that the fastening plate is fixed to the limit block and the support column by bolts.

[0011] The working principle and beneficial effects of this application are:

[0012] 1. Through the joint action of the limit block and the fastening plate, the cross bar is well fixed on the support column, which is convenient for processing and installation and can also realize the simple replacement of the cross bar.

[0013] 2. In addition to ensuring the tight connection between the support column, cross bar and limit block, the fastening plate can also convert the force that directly disengages the two ends of the cross bar toward the rear side of the support column when the cross bar is hit into a force that tilts toward the left side. The conversion process can not only offset part of the force on the two ends of the cross bar, but also make the cross bar bend when it is hit, but the two ends are not easy to fall off, so as not to cause a larger safety accident. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0015] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0016] Figure 2 This is a schematic diagram of the structure of the support column described in this application;

[0017] Figure 3 This is a schematic diagram of the structure of the crossbar described in this application;

[0018] Figure 4 This is a schematic diagram of the structure of the limit block described in this application.

[0019] In the figure: 1. support column; 11. support groove; 12. clamping groove; 101. front side; 102. left side; 2. cross bar; 21. fastening plate; 3. limit block; 31. clamping part; 32. limit plate; 4. bolt. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1-Figure 4As shown, a highway guardrail includes support columns 1, and there are several support columns 1, which are arranged side by side on both sides of the highway and fixed vertically to the road surface, and support grooves 11 and clamping grooves 12 are opened on the side walls of the support columns 1; a cross bar 2 is fixed between every two support columns 1, and the two ends of the cross bar 2 are respectively inserted into the support grooves 11 of the support columns 1 on both sides, and a fastening plate 21 is sleeved on the cross bar 2; a limit block 3, the limit block 3 includes a clamping portion 31 and a limit plate 32, the clamping portion 31 is clamped into the clamping groove 12 and has an interference fit therewith, and at this time the limit plate 32 can close the notch of the support groove 11 to prevent the cross bar 2 from falling out; the fastening plate 21 is close to the surface of the limit block 3 and the support column 1 and is fixed to the two.

[0022] When installing the highway guardrail, first fix the support column 1 to the road surface. The support column 1, as the main force-bearing structure, is rigidly connected to the highway in a traditional manner. Then, the clamping portion 31 of the limit block 3 is clamped into the clamping groove 12. Then, the two ends of the cross bar 2 are respectively inserted into the support grooves 11 of the support columns 1 on both sides. The end without the fastening plate 21 is inserted first to prevent the fastening plate 21 from interfering with the installation during insertion. Finally, the fastening plate 21 on the cross bar 2 is attached to the limit block 3 and the support column 1 on the adjacent side and detachably fixed. When replacing the cross bar 2, the fastening plate 21 can be removed.

[0023] Through the joint action of the stopper block 3 and the fastening plate 21, the cross bar 2 is well fixed on the support column 1, which is convenient for processing and installation, and can also realize the simple replacement of the cross bar 2. In addition to ensuring the fastening connection between the support column 1, the cross bar 2 and the stopper block 3, the fastening plate 21 can also convert the force of the two ends of the cross bar 2 directly coming out of the rear side of the support column 1 into a force tilting toward the left side 102 when the cross bar 2 is hit. In addition to offsetting part of the force on the two ends of the cross bar 2 during the conversion process, the cross bar 2 can bend when it is hit, but the two ends are not easy to fall off, so as not to cause a greater safety accident.

[0024] like Figure 2 As shown, the support column 1 is a rectangular columnar structure, and its side wall is surrounded by a front side 101, a rear side, a left side 102 and a right side, wherein the side facing the road surface is the front side 101, the support groove 11 is provided on the front side 101, and the clamping groove 12 is provided on the left side 102. Figure 4 As shown, there are two limit plates 32 , which are respectively located on both sides of the clamping portion 31 . When the clamping portion 31 is clamped into the clamping groove 12 , the two limit plates 32 are respectively tightly fixed to the front side surface 101 and the rear side surface of the support column 1 .

[0025] In this way, when the cross bar 2 is hit by external force, its two ends will first generate a force to escape toward the rear side of the support column 1. At this time, in addition to the support groove 11 of the support column 1 itself blocking the rear, the limiting plate 32 on the rear side will also work together to prevent the two ends of the cross bar 2 from escaping from the rear; then the cross bar 2 is bent by the force, and its two ends will tilt accordingly, but due to the dual effects of the limiting plate 32 on the front side 101 and the fastening plate 21, the two ends of the cross bar 2 cannot easily escape from the front side 101 of the support column 1, thereby ensuring the characteristic that the cross bar 2 will only bend and is not easy to fall off.

[0026] In order to ensure the connection strength of the crossbar 2, the inner wall of the support groove 11 matches the outer wall shape of the crossbar 2. There are several support grooves 11 and clamping grooves 12 on each support column 1, which are used to match and insert several crossbars 2 and limit blocks 3. The number of crossbars 2 can be adjusted according to the applicable scope of different roads. The fastening plate 21 is fixedly connected with the limit block 3 and the support column 1 by a long bolt 4.

[0027] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A highway guardrail, characterized in that: include: A plurality of support columns (1) are arranged side by side on both sides of a highway and are vertically fixed to the road surface; a support groove (11) and a clamping groove (12) are provided on the side walls of the support columns (1); a cross bar (2) is fixed between every two support columns (1); two ends of the cross bar (2) are respectively inserted into the support grooves (11) of the support columns (1) on both sides; a fastening plate (21) is sleeved on the cross bar (2); A limit block (3), the limit block (3) comprising a clamping portion (31) and a limit plate (32), the clamping portion (31) being clamped into the clamping groove (12) and having an interference fit therewith, and at this time, the limit plate (32) can close the notch of the support groove (11) to prevent the cross bar (2) from falling out; The fastening plate (21) is closely attached to the surfaces of the limiting block (3) and the supporting column (1) and is fixed to the two.

2. A highway guardrail according to claim 1, characterized in that: The support column (1) is a rectangular columnar structure, and its side wall is surrounded by a front side surface (101), a rear side surface, a left side surface (102) and a right side surface, wherein the side facing the road surface is the front side surface (101), the support groove (11) is provided on the front side surface (101), and the clamping groove (12) is provided on the left side surface (102).

3. A highway guardrail according to claim 2, characterized in that: There are two limit plates (32), which are respectively located on both sides of the clamping portion (31); when the clamping portion (31) is clamped into the clamping groove (12), the two limit plates (32) are respectively tightly fixed to the front side surface (101) and the rear side surface of the support column (1).

4. A highway guardrail according to claim 1, characterized in that: The inner wall of the support groove (11) matches the shape of the outer wall of the cross bar (2).

5. A highway guardrail according to claim 1, characterized in that: The number of the supporting grooves (11) and the clamping grooves (12) on each supporting column (1) is several, and they are used to match and insert several cross bars (2) and limit blocks (3).

6. A highway guardrail according to claim 1, characterized in that: The fastening plate (21) is fixed to the limiting block (3) and the supporting column (1) via bolts (4).

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