Improved anti-block for a class a road barrier

Abstract

The utility model relates to the technical field of protection block, disclose an improved A -level road guardrail is with prevent blocking block, including prevent blocking block body, prevent blocking block body rear end penetrates and is fixedly connected with backplate, the backplate rear end is equipped with preset hole, prevent blocking block body top front end fixedly connected with arc plate, prevent blocking block body front end is equipped with through -hole, prevent blocking block body front end is provided with first bolt. In the utility model, through the cooperation between prevent blocking block body, backplate, preset hole, stand, arc plate, through -hole, compared with the cost of reconstruction is saved, the traffic recovery benefit brought by construction period shortening, the safety protection level is promoted, reduces the accident risk, the sustainable development, promotes the applicability of resource -conserving construction city road, expressway etc. asphalt or cement additional paving road section, the potential market demand of road reconstruction project.

Description

Technical Field

[0001] This utility model relates to the field of protective block technology, specifically an improved Class A road guardrail anti-blocking block. Background Technology

[0002] Anti-collision blocks are key connecting components in corrugated guardrail systems. They are typically rectangular or hexagonal steel structures installed between the posts and the corrugated plates. Their main function is to absorb some of the impact energy through deformation during a vehicle collision, reducing the impact force on the vehicle and occupants. They also buffer and disperse the force, preventing the guardrail from breaking due to concentrated stress in certain areas. Furthermore, they can adjust the relative angle between the corrugated plates and the posts, making the overall force distribution of the guardrail more uniform and enhancing the impact resistance and stability of the protection system. They are widely used in the safety protection of traffic facilities such as highways and bridges.

[0003] In the existing technology, the method of disassembling the anti-blocking block relies on manual operation. The specific process is as follows: the operator first determines the connection point between the anti-blocking block and the column and corrugated plate by visual observation, finds the high-strength bolt used for fixing, and then selects a manual wrench or socket wrench of appropriate specifications, accurately puts the wrench jaws into the bolt head, applies force in the counterclockwise direction, and gradually loosens the bolt.

[0004] The four bolts of the corrugated plate must be removed, or even all eight bolts must be removed and the guardrail plate removed, which causes the two plates to shift and the reinstallation work to be huge. It is impossible to easily disassemble the protective block. In order to address the above problems, an improved anti-blocking block for Class A road guardrails is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide an improved anti-blocking block for Class A road guardrails, which solves the problem of the inability to easily disassemble the protective block in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an improved Class A road guardrail anti-blocking block, comprising an anti-blocking block body, a back plate that is connected through and fixedly connected to the rear end of the anti-blocking block body, a preset hole that is opened at the rear end of the back plate, an arc-shaped plate that is fixedly connected to the front end of the top of the anti-blocking block body, a through hole that is opened at the front end of the anti-blocking block body, and a first bolt that is provided at the front end of the anti-blocking block body.

[0007] By adopting the above technical solution, the rear end height of the blocking block body is 209mm, the length is 232mm, the width is 140mm, the radius of the arc plate is 20mm, the radius of the back plate is 70mm, and the inner angle between the blocking block body and the back plate is 60°.

[0008] As a further description of the above technical solution: the outer ring of the first bolt is threaded with a corrugated plate.

[0009] By adopting the above technical solution, the corrugated plate and the anti-blocking block body can be connected by the first bolt.

[0010] As a further description of the above technical solution: the rear end of the outer ring of the first bolt is threaded with a protective rail, and the rear end of the protective rail is slidably connected to the corrugated plate.

[0011] By adopting the above technical solution, the guardrail and the anti-blocking block body can be fixed together.

[0012] As a further description of the above technical solution: each of the guardrails is provided with a limit bolt at its front end, and the outer ring of the limit bolt is threadedly connected to the corrugated plate.

[0013] By adopting the above technical solution, the limiting bolts on both sides of the top can limit the arc-shaped plate.

[0014] As a further description of the above technical solution: the rear end of the outer ring of the limiting bolt is threaded with a first hexagonal nut, and the front end of the first hexagonal nut is slidably connected to the corrugated plate.

[0015] By adopting the above technical solution, the position of the corrugated plate can be fixed by the first hexagonal nut.

[0016] As a further description of the above technical solution: a second bolt is provided at the rear end of the anti-blocking block body.

[0017] By adopting the above technical solution, the anti-blocking block body and the column can be connected by the second bolt.

[0018] As a further description of the above technical solution: the outer ring of the second bolt is threaded with a column, and the outer ring of the column is slidably connected to the back plate.

[0019] By adopting the above technical solution, the back panel and the column cooperate with each other, making it easy to fix the back panel on top of the column.

[0020] As a further description of the above technical solution: the rear end of the outer ring of the second bolt is threaded with a second hexagonal nut.

[0021] By adopting the above technical solution, the second hexagonal nut can increase the connection between the second nut and the column.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] This utility model provides an improved Class A road guardrail anti-blocking block. Firstly, through the cooperation between the anti-blocking block body, back plate, pre-set holes, posts, arc plates, and through holes, it saves costs compared to demolition and reconstruction, shortens the construction period and brings traffic restoration benefits, improves the level of safety protection, reduces accident risks, promotes sustainable development, and promotes the applicability of resource-saving construction of asphalt or cement paved sections of urban roads and highways. Attached Figure Description

[0024] Figure 1 This is a perspective view of the present utility model;

[0025] Figure 2 This is an exploded view of the back panel of this utility model;

[0026] Figure 3 This is a schematic diagram of the second bolt of this utility model.

[0027] Legend:

[0028] 1. Anti-blocking block body; 2. Back plate; 3. Pre-set hole; 4. Column; 5. Arc plate; 6. Through hole; 7. First bolt; 8. Wave plate; 9. Limit bolt; 10. First hexagonal nut; 11. Guardrail; 12. Second bolt; 13. Second hexagonal nut. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] To further understand the contents of this utility model, a detailed description of this utility model will be provided with reference to the accompanying drawings.

[0031] Reference Figure 3This utility model discloses an improved Class A road guardrail anti-blocking block, comprising an anti-blocking block body 1, a corrugated plate 8 threadedly connected to the middle of the outer ring of a first bolt 7, the corrugated plate 8 facilitating the connection between the anti-blocking block body 1 and the guardrail 11, and a guardrail 11 with a corrugated shape threadedly connected to the rear end of the outer ring of the first bolt 7. The guardrail 11 effectively intercepts out-of-control vehicles, and the rear end of the guardrail 11 is slidably connected to the corrugated plate 8. Limit bolts 9 are provided at the front end of the guardrail 11, and the middle of the outer ring of the limit bolt 9 is threadedly connected to the corrugated plate 8. The rear end of the outer ring of the limit bolt 9 is threadedly connected to the corrugated plate 8. A first hexagonal nut 10 is connected, and a limiting bolt 9 at the top can limit the arc plate 5 in the protective block body 1. The front end of the first hexagonal nut 10 is slidably connected to the corrugated plate 8. The position of the corrugated plate 10 can be fixed by the first hexagonal nut 10. A second bolt 12 is provided at the rear end of the anti-blocking block body 1. A column 4 is threadedly connected to the middle of the outer ring of the second bolt 12. The protective block body 1 and the column 4 are connected by the second bolt 12. The outer ring of the column 4 is slidably connected to the back plate 2. A second hexagonal nut 13 is threadedly connected to the rear end of the outer ring of the second bolt 12.

[0032] Reference Figure 1 and Figure 2The back plate 2 is fixedly connected to the rear end of the anti-collision block body 1. A pre-drilled hole 3 is provided at the rear end of the back plate 2, facilitating the fixing of the second bolt 12. An arc-shaped plate 5 is fixedly connected to the top front end of the anti-collision block body 1. The rounded corners and the curvature of the corrugated plate 8 match, allowing for a larger contact area between the guardrail and the anti-collision block when a car collides with the guardrail, thus better dissipating energy and protecting the safety of the car occupants. In existing technology, typical guardrail blocks have two corners, while this patent uses only one corner, saving materials. Calculations show that each anti-collision block saves 0.23 kg of steel. Although the individual number is small, the amount is significant. For Class A road guardrails, each anti-collision block is 4 kg. One meter high, that's 25,000 guardrails for 100 kilometers. Moreover, asphalt roads age after more than ten years, and the common solution is to overlay and raise the guardrails. The demand for guardrails is far greater than just one or two 100-kilometer stretches. The front end of the anti-collision block body 1 has a through hole 6, which facilitates the connection of the first bolt 7. The front end of the anti-collision block body 1 has the first bolt 7. For Class A guardrails, in terms of buffering function, the longitudinal and lateral components of the occupant collision velocity must not exceed 12 m / s², and the longitudinal and lateral components of the occupant acceleration after the collision must not exceed 200 m / s². In actual vehicle collision results for Class A road guardrails, the occupant... The longitudinal collision speed was 6.6 m / s, and the lateral collision speed was 4.8 m / s, both less than the standard upper limit of 12 m / s. The post-collision acceleration of the occupants was 65.5 m / s' longitudinally and 102.3 m / s' laterally, also less than the standard upper limit of 200 m / s'. Compared with other types of Class A guardrails, concrete guardrails, being rigid guardrails, absorb collision energy mainly through vehicle climbing and collision friction after impact, resulting in limited energy absorption. In collision tests, the occupant acceleration is generally higher, making them slightly inferior in occupant protection. However, this patented Class A road... The guardrail performed well in terms of acceleration indicators after occupant collision, indicating its advantages in buffering energy absorption and reducing impact on occupants. Compared with some semi-rigid guardrails, such as low-deformation guardrails, the columns, beams, and corrugated plates can deform within a limited range after impact, resulting in better energy absorption and excellent occupant protection. The relevant indicators of this Class A road guardrail meet the standard requirements and, like high-quality semi-rigid guardrails, can ensure occupant safety to a certain extent. However, a more accurate judgment requires detailed real-vehicle collision test data for a specific semi-rigid guardrail to make a comparison with a particular semi-rigid guardrail.

[0033] Working Principle: Prepare the following components: anti-blocking block body 1, back plate 2, arc plate 5, first bolt 7, second bolt 12, corrugated plate 8, guardrail 11, limit bolt 9, first hexagonal nut 10, column 4, and second hexagonal nut 13. Inspect the appearance and thread integrity of each component, and confirm that the position of the preset hole 3 on the back plate 2 is clear for subsequent insertion of the second bolt 12. Insert the limit bolt 9 into the preset hole at the front end of the guardrail 11, so that the middle of the outer ring of the limit bolt 9 is threadedly connected to the corrugated plate 8. Tighten it initially to prepare for subsequent fixing. Screw the first hexagonal nut 10 into the rear end of the outer ring of the limit bolt 9, so that the front end of the first hexagonal nut 10 is slidably connected to the corrugated plate 8. Continue to tighten the first hexagonal nut 10. Since the limit bolt 9 limits both sides of the anti-blocking block body 1, only the two limit bolts 9 on the top side of the front end need to be removed. The anti-blocking block body 1 can then be installed. Alternatively, without removing the limiting bolt 9, simply rotate the upper edge of the corrugated plate 8 slightly, and the anti-blocking block body 1 will move downwards from above the column to the predetermined position. Then, insert the first bolt 7 into the through hole 6 at the front end of the anti-blocking block body 1, making the center of the outer ring of the first bolt 7 threadedly connected to the corrugated plate 8. Rotate the first bolt 7 to fix the guardrail 11 and the anti-blocking block body 1. Align the back plate 2 of the anti-blocking block body 1 with the column 4. Insert the second bolt 12 into the rear end of the anti-blocking block body 1 and the column 4, making the center of the outer ring of the second bolt 12 threadedly connected to the column 4, and ensuring that the outer ring of the column 4 slides against the back plate 2. Screw the second hexagonal nut 13 into the rear end of the outer ring of the second bolt 12 and gradually tighten it until the anti-blocking block body 1 and the column 4 are securely connected, completing the overall installation and thus completing the side assembly of the protective block body.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An improved anti-impact block for a class-A road barrier, comprising an anti-impact block body (1), characterized in that: The back plate (2) is connected to the rear end of the antiblock body (1), and a preset hole (3) is opened at the rear end of the back plate (2). An arc plate (5) is fixedly connected to the front end of the top of the antiblock body (1), and a through hole (6) is opened at the front end of the antiblock body (1). A first bolt (7) is provided at the front end of the antiblock body (1).

2. The improved block according to claim 1, wherein: The outer ring of the first bolt (7) is threaded with a corrugated plate (8).

3. The improved block according to claim 2, wherein: The outer ring of the first bolt (7) is threaded with a guardrail (11) at the rear end, and the rear end of the guardrail (11) is slidably connected to the corrugated plate (8).

4. The improved block according to claim 3, wherein: Each of the guardrails (11) is provided with a limit bolt (9) at the front end, and the outer ring of the limit bolt (9) is threadedly connected to the corrugated plate (8).

5. The improved block according to claim 4, wherein: The outer ring of the limiting bolt (9) is threaded with a first hexagonal nut (10), and the front end of the first hexagonal nut (10) is slidably connected to the corrugated plate (8).

6. The improved block according to claim 1, wherein: The rear end of the anti-blocking block body (1) is provided with a second bolt (12).

7. The improved block according to claim 6, wherein: The second bolt (12) has a threaded connection to a column (4) in the middle of its outer ring, and the outer ring of the column (4) is slidably connected to the back plate (2).

8. The improved block according to claim 6, wherein: The second bolt (12) has a second hexagonal nut (13) threaded to the rear end of its outer ring.

Images