Height-adjustable SB-grade guardrail

Abstract

The utility model relates to a height-adjustable SB-grade guardrail which comprises a stand column, an anti-blocking block is fixedly installed on the stand column, a wave-shaped guardrail is detachably and fixedly installed on the anti-blocking block, the anti-blocking block comprises a front side plate and a rear side plate which are symmetrically arranged, and a connecting part is arranged on the upper portion of the side, connected with the wave-shaped guardrail, of each side plate. A top plate is arranged on the side, connected with the wave-shaped guardrail, between the tops of the two side plates, a mounting cavity is formed in the side, away from the wave-shaped guardrail, of each side plate, the mounting cavity is defined by a first limiting plate, a second limiting plate and the two side plates, the first limiting plate is fixedly connected between the interiors of the two side plates, and the second limiting plate is fixedly connected between the interiors of the two side plates. The second limiting plate is fixedly connected between the sides, away from the wave-shaped guardrail, of the two side plates. Adjusting hole sets are formed in the positions, corresponding to the mounting cavities, of the stand columns, and mounting hole sets are formed in the side plates. According to the utility model, a height adjusting space is reserved for paving the road surface, the SB-level protection level is maintained, the construction is simple and convenient, the cost is low, the compatibility is strong, and the green road construction concept is met.

Description

Technical Field

[0001] This application relates to the field of highway traffic safety facilities technology, and in particular to a height-adjustable SB-class guardrail. Background Technology

[0002] Corrugated beam guardrails are widely used in highway construction and maintenance as an important facility to ensure driving safety. Currently, highway corrugated beam guardrails generally adopt a fixed height design. As highways enter a period of large-scale maintenance, road surface overlay has become a common repair method. However, road surface overlay will raise the road surface elevation, causing the guardrail height, which originally met the specifications, to no longer meet the requirements.

[0003] Existing SB-grade (Level IV) corrugated beam guardrails are bolted to the posts using anti-blocking blocks, but lack an effective height adjustment mechanism. The traditional solution to this problem is to remove and rebuild the guardrails. This method is not only costly, costing approximately 500,000 yuan per kilometer, but also severely impacts traffic efficiency, wastes significant amounts of steel and other resources, and generates high carbon emissions, contradicting the concept of green highway construction. An innovative technical solution is urgently needed to address the insufficient height of SB-grade guardrails after road overlay. Utility Model Content

[0004] This utility model addresses the aforementioned problems in existing technologies by providing a height-adjustable SB-grade guardrail. It allows for adjustments during subsequent road paving, ensuring that the guardrail height still meets specifications after road paving without demolishing and rebuilding the guardrail. This reduces maintenance costs, improves construction convenience, and enhances the sustainable use of the guardrail.

[0005] The objective of this utility model is mainly achieved through the following solution:

[0006] A height-adjustable SB-grade guardrail includes a vertically installed post on one side of a highway. A blocking block is detachably and fixedly installed on the upper part of the post. A corrugated guardrail is detachably and fixedly installed on the side of the blocking block facing the center of the highway. The blocking block includes two symmetrically arranged side plates. The upper part of the side plate connected to the corrugated guardrail has a connecting portion adapted to the back of the corrugated guardrail. A top plate is provided between the tops of the two side plates on the side connected to the corrugated guardrail. An installation cavity for the post to pass through is provided on the side of the two side plates away from the corrugated guardrail. The installation cavity is surrounded by a first limiting plate, a second limiting plate, and the two side plates. The first limiting plate is fixedly connected between the interiors of the two side plates, and the second limiting plate is fixedly connected between the sides of the two side plates away from the corrugated guardrail. An adjustment hole group is provided on the post at a position corresponding to the installation cavity, and an installation hole group for cooperating with the adjustment hole group is provided on the side plate.

[0007] Preferably, the lower part of the side plate connected to the corrugated guardrail is provided with an ear plate, and the ear plate is provided with a connection hole for connecting to the corrugated guardrail.

[0008] Preferably, the adjustment hole group includes a first elongated waist hole at the bottom and a plurality of adjustment round holes at the top, wherein the first elongated waist hole is arranged vertically and the plurality of adjustment round holes are arranged vertically and evenly.

[0009] Preferably, the mounting hole group includes an upper second elongated waist hole and a lower mounting round hole, and the mounting hole group is provided with at least one set.

[0010] Preferably, the angle between the length direction of the second elongated waist hole and the ground is 0 degrees to 80 degrees.

[0011] Preferably, the side of the first limiting plate facing the mounting cavity is flush with the side of the top plate facing the mounting cavity, and a first buffer plate is provided on the side of the first limiting plate facing the mounting cavity.

[0012] Preferably, the first limiting plate has multiple insertion holes, and the first buffer plate has multiple limiting posts that cooperate with the insertion holes.

[0013] Preferably, the second limiting plate has two parts, one upper and one lower, and each of the two second limiting plates has a second buffer plate on the side facing the mounting cavity.

[0014] In summary, compared with the prior art, the present invention has the following beneficial technical effects:

[0015] (1) The structure of this utility model is reliable. While realizing the height adjustment function, it maintains the original SB level protection level, which can effectively ensure driving safety and provide reliable protection for highways;

[0016] (2) This utility model is easy to construct. The height adjustment process does not require special tools. Only conventional bolt disassembly and installation tools are needed. Conventional maintenance personnel can operate it after simple training. When adjusting the height of the guardrail after the road surface is paved, it is only necessary to follow the steps of unscrewing the original bolts, removing the guardrail plate, reinstalling it to the reserved bolt hole position, and tightening the bolts, which greatly reduces the difficulty of construction.

[0017] (3) This utility model is economical and efficient. Compared with the traditional demolition and reconstruction scheme, the cost of this scheme is significantly reduced, avoiding the huge economic investment brought about by the overall replacement of the guardrail, and effectively reducing the maintenance cost of the highway.

[0018] (4) This utility model has strong compatibility and is applicable to various standard corrugated beam plate specifications. It can be adapted and installed with different types of corrugated guardrail plates. It has wide applicability in practical applications and does not require special design or modification for corrugated guardrail plates of different specifications.

[0019] (5) This utility model has good sustainability. By avoiding the demolition and reconstruction of guardrails, it reduces the waste of raw materials such as steel, reduces carbon emissions, conforms to the concept of green highway construction, has good environmental and social benefits, and promotes the sustainable development of the highway construction industry. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the connection between the anti-blocking block and the column in this utility model;

[0022] Figure 3 This is a schematic diagram of the anti-blocking block in this utility model;

[0023] Figure 4 This is a schematic diagram of the anti-blocking block from another angle in this utility model;

[0024] Figure 5 This is a schematic diagram showing the connection between the first buffer plate and the first limiting plate in this utility model;

[0025] Figure 6 This is a cross-sectional view of the anti-blocking block in this utility model.

[0026] Reference numerals: 1-Post; 2-Anti-blocking block; 3-Wave guardrail; 4-Side plate; 5-Connecting part; 6-Top plate; 7-Mounting cavity; 8-First limiting plate; 9-Second limiting plate; 10-Adjusting hole group; 11-Mounting hole group; 12-Ear plate; 13-Connecting hole; 14-First elongated waist hole; 15-Adjusting round hole; 16-Second elongated waist hole; 17-Mounting round hole; 18-First buffer plate; 19-Insertion hole; 20-Limiting post. Detailed Implementation

[0027] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the implementation of this utility model is not limited to the following embodiments, and any modifications and / or alterations made to this utility model will fall within the protection scope of this utility model.

[0028] Example 1:

[0029] like Figure 1 , 2As shown, this utility model discloses a technical solution: a height-adjustable SB-grade guardrail, including a vertically embedded post 1 on one side of the road. A blocking block 2 is detachably fixed to the upper part of the post 1 via bolts. A corrugated guardrail 3 is detachably fixed to the side of the blocking block 2 facing the center of the road via bolts. The blocking block 2 includes two symmetrically arranged side plates 4. The upper part of the side plate 4 connected to the corrugated guardrail 3 has an integral connecting part 5 adapted to the back of the corrugated guardrail 3. The tops of the two side plates 4 are connected to the corrugated guardrail 3. A top plate 6 is welded to one side of the connection. A rectangular mounting cavity 7 for the column 1 to pass through is provided on the side of the two side plates 4 away from the corrugated guardrail 3. The mounting cavity 7 is surrounded by a first limiting plate 8, a second limiting plate 9 and two side plates 4. The first limiting plate 8 is welded between the interior of the two side plates 4, and the second limiting plate 9 is welded between the side of the two side plates 4 away from the corrugated guardrail 3. An adjustment hole group 10 is opened on the column 1 at the position corresponding to the mounting cavity 7, and a mounting hole group 11 that is used in conjunction with the adjustment hole group 10 is opened on the side plate 4.

[0030] The column 1 is vertically fixed to one side of the highway as a basic support component. The anti-blocking block 2 forms an installation cavity 7 that is adapted to the column 1. The stability and positioning accuracy of the installation cavity 7 are ensured by the first limiting plate 8 and the second limiting plate 9. The connecting part 5 on the upper part of the side plate 4 is adapted to the back of the corrugated guardrail 3. The top plate 6 further enhances the structural strength of the anti-blocking block 2. At the same time, the adjustment hole group 10 on the column 1 and the installation hole group 11 on the side plate 4 cooperate with each other, so that after the road surface is paved, the height of the corrugated guardrail 3 can be adjusted by disassembling and moving the anti-blocking block 2 to a suitable adjustment hole position and then re-fixing it. This effectively solves the problem of the traditional guardrail height not being adjustable and reserves adjustment space for the later road surface paving.

[0031] Example 2:

[0032] like Figure 3 , 4 As shown, this utility model discloses another technical solution, a height-adjustable SB-level guardrail, which differs from embodiment 1 in that the lower part of the side plate 4 connected to the corrugated guardrail 3 is integrally provided with an ear plate 12 extending outward. The ear plate 12 is provided with two connection holes 13 connected to the corrugated guardrail 3. When installing the corrugated guardrail 3, it is fixedly connected to the corrugated guardrail 3 by bolts or other connecting parts passing through the connection holes 13.

[0033] Example 3:

[0034] like Figure 2 , 3As shown in Figure 4, this utility model discloses another technical solution: a height-adjustable SB-grade guardrail. The difference from Embodiment 1 is that the adjustment hole group 10 includes a lower first elongated waist hole 14 and an upper plurality of adjustment round holes 15. The first elongated waist hole 14 is vertically arranged, and the plurality of adjustment round holes 15 are vertically and evenly arranged. The vertical arrangement of the first elongated waist hole 14 provides a certain continuous upward movement range, making it more convenient to adjust the guardrail height. The multiple vertically evenly distributed adjustment round holes 15 provide multiple precise fixed adjustment levels for the guardrail height. In practical applications, the appropriate adjustment round hole 15 can be selected and fixed according to the specific height of the road surface overlay, ensuring both the accuracy and convenience of height adjustment. Compared to a single type of adjustment hole, this greatly improves the applicability and reliability of guardrail height adjustment.

[0035] Specifically, the mounting hole group 11 includes an upper second elongated waist hole 16 and a lower mounting round hole 17, and the mounting hole group 11 is provided with at least one set; the lower mounting round hole 17 cooperates with the first elongated waist hole 14 on the column 1, and the upper second elongated waist hole 16 cooperates with the adjustment round hole 15 on the column 1 to achieve precise fixing of the anti-blocking block 2 at a specific height; at the same time, the setting of multiple sets of mounting hole groups 11 further enhances the stability of the connection between the anti-blocking block 2 and the column 1, and can withstand greater external impact.

[0036] Specifically, the angle between the length direction of the second long waist hole 16 and the ground is 0 degrees to 80 degrees. In actual highway construction scenarios, the terrain is complex and diverse, and the installation angle of the column 1 may have certain deviations. By adjusting within this angle range, the anti-blocking block 2 can better adapt to different installation conditions of the column 1, ensuring that the bolt connection between the anti-blocking block 2 and the column 1 is in a reasonable stress state, and avoiding problems such as uneven bolt stress and loosening due to unreasonable angle.

[0037] Example 4:

[0038] like Figure 5 , 6 As shown, this utility model discloses another technical solution: a height-adjustable SB-grade guardrail. The difference from Embodiment 1 is that the side of the first limiting plate 8 facing the mounting cavity 7 is flush with the side of the top plate 6 facing the mounting cavity 7, allowing the post 1 to be smoothly and accurately installed in the mounting cavity 7, improving installation accuracy and stability. Additionally, a rubber-made first buffer plate 18 is installed on the side of the first limiting plate 8 facing the mounting cavity 7. When a vehicle collides with the guardrail, the first buffer plate 18 can absorb and buffer part of the impact force, reducing the direct impact on the post 1 and the anti-blocking block 2, lowering the risk of structural damage, and extending the service life of the guardrail.

[0039] Specifically, the first limiting plate 8 has multiple vertically opened insertion holes 19, and the first buffer plate 18 has multiple limiting posts 20 integrated on it to cooperate with the insertion holes 19, which facilitates the installation of the first buffer plate 18. This detachable connection method also makes it easy to replace the first buffer plate 18 when it is damaged, reducing the later maintenance cost and difficulty.

[0040] Specifically, the second limiting plate 9 has two parts, one upper and one lower, and a second buffer plate made of rubber (not shown in the figure) is glued to the side of each second limiting plate 9 facing the mounting cavity 7. When a vehicle collides, it can buffer and disperse the impact force from both sides. Together with the first buffer plate 18, it forms a multi-directional buffer protection system, which greatly enhances the impact resistance of the guardrail, improves the protection of vehicles and passengers, and further ensures road traffic safety.

[0041] This utility model provides a height-adjustable SB-grade guardrail. Through the adjustment hole group 10 on the post 1 and the anti-blocking block 2, the height adjustment space is reserved for road overlay, maintaining the SB-grade protection level. It is easy to construct, low in cost, and highly compatible. It conforms to the concept of green highway construction, effectively solves the problem of insufficient guardrail height after road overlay, and has significant promotion and application value.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A height-adjustable SB-grade guardrail, comprising a vertically installed post (1) on one side of a highway, wherein a blocking block (2) is detachably and fixedly installed on the upper part of the post (1), and a corrugated guardrail (3) is detachably and fixedly installed on the side of the blocking block (2) facing the center of the highway, characterized in that: The anti-blocking block (2) includes two symmetrically arranged side plates (4) at the front and back. The side plate (4) connected to the corrugated guardrail (3) has a connecting part (5) on the upper part of the side plate (4) that is adapted to the back of the corrugated guardrail (3). The top plate (6) is provided between the tops of the two side plates (4) and the side connected to the corrugated guardrail (3). The side of the two side plates (4) away from the corrugated guardrail (3) has an installation cavity (7) for the column (1) to pass through. The installation cavity (7) is surrounded by a first limiting plate (8), a second limiting plate (9) and the two side plates (4). The first limiting plate (8) is fixedly connected between the interiors of the two side plates (4), and the second limiting plate (9) is fixedly connected between the side of the two side plates (4) away from the corrugated guardrail (3). The column (1) has an adjustment hole group (10) at the position corresponding to the installation cavity (7). The side plate (4) has an installation hole group (11) that is used in conjunction with the adjustment hole group (10).

2. A height adjustable SB level barrier according to claim 1, characterized in that: The side plate (4) is connected to the corrugated guardrail (3) and the lower part of the side plate (4) is provided with an ear plate (12) extending outward. The ear plate (12) is provided with a connection hole (13) for connecting to the corrugated guardrail (3).

3. A height adjustable SB level barrier according to claim 1, characterized in that: The adjustment hole group (10) includes a first elongated waist hole (14) at the bottom and a plurality of adjustment round holes (15) at the top. The first elongated waist hole (14) is arranged vertically, and the plurality of adjustment round holes (15) are arranged vertically and evenly.

4. A height adjustable SB level barrier according to claim 3, characterized in that: The mounting hole group (11) includes an upper second elongated waist hole (16) and a lower mounting round hole (17), and the mounting hole group (11) is provided with at least one set.

5. A height adjustable SB level barrier according to claim 4, characterized in that: The angle between the length direction of the second elongated waist hole (16) and the ground is 0 degrees to 80 degrees.

6. A height adjustable SB level barrier according to claim 1, characterized in that: The side of the first limiting plate (8) facing the mounting cavity (7) is flush with the side of the top plate (6) facing the mounting cavity (7), and the side of the first limiting plate (8) facing the mounting cavity (7) is provided with a first buffer plate (18).

7. A height adjustable SB level barrier according to claim 6, characterized in that: The first limiting plate (8) has multiple insertion holes (19), and the first buffer plate (18) has multiple limiting posts (20) that cooperate with the insertion holes (19).

8. A height adjustable SB level barrier according to claim 7, characterized in that: The second limiting plate (9) has two parts, one above the other, and each of the two second limiting plates (9) has a second buffer plate on the side facing the mounting cavity (7).

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