A road barrier post

Abstract

The utility model relates to road guardrail technical field especially relates to a road guardrail stand, including base module, the detachable installation of energy absorption module is had on base module, and the both sides symmetrical arrangement of energy absorption module have guardrail piece subassembly, and energy absorption module includes buffer stand, and the lower extreme of buffer stand coaxially is provided with vertical connecting piece. The utility model through rigid base module and collapsible energy absorption module's separation type design, when happening violent collision, vertical connecting piece can be controlled fracture after the transverse tension exceeds preset threshold value rapidly, makes energy absorption module and guardrail piece subassembly as a whole with fixed base separation and be dragged by vehicle, thereby utilize the continuous friction of guardrail piece subassembly and ground and the kinetic energy consumption of vehicle itself to attenuate collision energy steadily, effectively avoided the high risk accident mode of the sudden stop, the somersault even the ejection etc. that the traditional rigid stand and vehicle happened " hard -headed " impact led, significantly promoted the safety protection level of road.

Description

Technical Field

[0001] This utility model relates to the field of road guardrail technology, and in particular to a road guardrail post. Background Technology

[0002] Road guardrails are an important component of modern traffic safety facilities. Their core function is to effectively reduce the severity of traffic accidents by blocking and guiding out-of-control vehicles. As a key supporting component of the guardrail system, the mechanical properties of the posts directly determine the protective effect of the entire system.

[0003] Existing pillars are mostly rigidly fixed. Although the structure is simple and the support is strong, they cannot effectively collapse when faced with high-speed, high-energy vehicle collisions. This can cause the vehicle to suffer huge deceleration, which can easily cause serious injuries to the occupants. Moreover, once such pillars are involved in a violent collision, they are often severely damaged along with their concrete foundation, and the repair time is long. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a road guardrail post that solves the technical problem that existing guardrail posts cannot effectively collapse when subjected to violent impacts, easily leading to high-risk accident scenarios. It has the ability to smoothly attenuate collision energy and effectively prevent vehicles from rolling over, ejecting, and other high-risk accident scenarios.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a road guardrail post, including a base module, on which an energy-absorbing module is detachably installed. Guardrail assemblies are symmetrically arranged on both sides of the energy-absorbing module. When the guardrail assembly is violently impacted by a vehicle, the energy-absorbing module can separate from the base module, thereby dragging the guardrail assembly down. The energy-absorbing module includes a buffer post, with a vertical connector coaxially arranged at the lower end of the buffer post. Two arc-shaped mounting buckles are symmetrically arranged on the upper exterior of the buffer post, and the two arc-shaped mounting buckles are connected by fixing bolts. A reflective strip is provided on the exterior of the buffer post. The guardrail assembly and the arc-shaped mounting buckles are also fixedly connected by fixing bolts, thus forming a road guardrail.

[0006] Preferably, the basic module includes a fixed base with the same cross-sectional diameter as the buffer column. A connecting square plate is fixedly installed at the lower end of the fixed base. An insertion square groove is opened inside the fixed base. The connecting square plate is pre-embedded below the road surface and fixed to the road surface by expansion bolts, thereby ensuring that the fixed base has sufficient rigid support force.

[0007] Preferably, the size of the insertion slot matches the size of the vertical connector, and the fixed base and the buffer column can be fixed together by the vertical connector.

[0008] Preferably, the shear force of the vertical connector is adjustable, and it may break if the lateral force exceeds a threshold. When the railing assembly is impacted and causes lateral tension on the buffer column, the vertical connector will initially remain rigid, but will break when the tension exceeds the threshold.

[0009] Preferably, a reflective strip is fixedly installed on the outside of the fixed base to remind passing vehicles to pay attention and avoid it, so as to prevent the column from being directly hit.

[0010] Preferably, the fixed base is equipped with a jack for changing the height of the buffer column. When the installation height needs to be adjusted, the operator can manually operate the jack to change the height of the buffer column.

[0011] By employing the above technical solution, this utility model provides a road guardrail post, which has at least the following beneficial effects: 1. This utility model, through the separate design of the rigid base module and the collapsible energy-absorbing module, allows the vertical connector to rapidly and controllably break after the lateral tensile force exceeds a preset threshold during a violent collision. This causes the energy-absorbing module and the guardrail assembly to separate from the fixed base as a whole and be dragged by the vehicle. By utilizing the continuous friction between the guardrail assembly and the ground, as well as the kinetic energy consumption of the vehicle itself, the collision energy is smoothly attenuated. This effectively avoids high-risk accident scenarios such as sudden stopping, rollover, or even ejection caused by the "hard-hit" collision between the traditional rigid pillar and the vehicle, significantly improving the safety protection level of the road.

[0012] 2. This utility model separates the vulnerable energy-absorbing part from the permanent foundation part. In most cases, after a collision accident, only the damaged upper energy-absorbing module needs to be replaced to quickly restore the guardrail function. It rarely causes serious damage to the fixed base, which can greatly shorten the road closure and maintenance time and reduce the indirect economic losses caused by traffic interruption. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the structure of the present invention in its installed state; Figure 2 This is a perspective view of the overall structure of this utility model; Figure 3 This is a schematic diagram of the energy absorption module in this utility model; Figure 4 This is a schematic diagram of the basic module in this utility model.

[0014] In the diagram: 1. Basic module; 101. Fixed base; 102. Connecting square plate; 103. Insertion square groove; 2. Energy absorption module; 201. Buffer column; 202. Vertical connector; 203. Arc-shaped mounting buckle; 204. Fixing bolt; 3. Barrier assembly; 4. Reflective strip. Detailed Implementation

[0015] 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.

[0016] Example 1 Existing pillars in technology mostly use rigid fixing methods. Although the structure is simple and the support is sturdy, they cannot effectively crumple in the face of high-speed, high-energy vehicle collisions, leading to huge deceleration of the vehicle and potentially causing serious injuries to occupants. Moreover, once such pillars are involved in a violent collision, they are often severely damaged along with their concrete foundations, resulting in lengthy repair times. To address this technical deficiency in existing technologies, such as... Figures 1-4 As shown, this embodiment proposes a road guardrail post that can effectively avoid high-risk accident scenarios such as sudden stopping, rollover, or even ejection caused by a "hard collision" between a traditional rigid post and a vehicle. The post includes a base module 1, on which an energy-absorbing module 2 is detachably installed. Guardrail assemblies 3 are symmetrically arranged on both sides of the energy-absorbing module 2. When the guardrail assembly 3 is violently impacted by a vehicle, the energy-absorbing module 2 can separate from the base module 1, thereby dragging the guardrail assembly 3 down.

[0017] Specifically, the basic module 1 includes a fixed base 101, with reflective strips 4 fixedly installed on its exterior to warn passing vehicles to avoid direct impact to the column. The cross-sectional diameter of the fixed base 101 is the same as that of the buffer column 201. A connecting square plate 102 is fixedly installed at the lower end of the fixed base 101. An insertion square groove 103 is provided inside the fixed base 101. The connecting square plate 102 is embedded below the road surface and fixed to the road surface with expansion bolts, ensuring sufficient rigid support for the fixed base 101. The energy-absorbing module 2 includes a buffer column 201. A jack for changing the height of the buffer column 201 is provided inside the fixed base 101. When the installation height needs to be adjusted, the operator can manually operate the jack to change the height of the buffer column 201. A vertical connector 202 is coaxially provided at the lower end of the 1. The shear force of the vertical connector 202 is adjustable. It can break when the lateral force exceeds the threshold. When the guardrail assembly 3 is impacted and causes lateral tension to the buffer post 201, the vertical connector 202 will initially remain rigid. When the tension exceeds the threshold, the vertical connector 202 will break. The size of the insertion square groove 103 matches the size of the vertical connector 202. The fixed base 101 and the buffer post 201 can be fixed together by the vertical connector 202. Two arc-shaped mounting buckles 203 are symmetrically provided on the upper part of the buffer post 201. The two arc-shaped mounting buckles 203 are connected by fixing bolts 204. The outer side of the buffer post 201 is provided with a reflective strip 4. The guardrail assembly 3 and the arc-shaped mounting buckles 203 are also fixedly connected by fixing bolts 204, thus forming a road guardrail.

[0018] As can be seen from the above, during the installation work, firstly, the workers will use the connecting square plate 102 to fix the fixed base 101 to the ground, and then use jacks to manually adjust the height of the buffer column 201 according to the height of the railing assembly 3 to be installed.

[0019] like Figure 1 As shown, after the height adjustment is completed, the guardrail assembly 3 is fixed to the arc-shaped mounting buckle 203 using the fixing bolt 204, thereby completing the on-site assembly of the guardrail.

[0020] When the vehicle loses control and collides violently with the barrier assembly 3, causing the lateral tension on the buffer column 201 to exceed the threshold, the vertical connector 202 will automatically break. At this time, the buffer column 201 will separate from the fixed base 101, and the barrier assembly 3 will move a distance with the vehicle, thereby achieving the effect of energy absorption and preventing the column from rigidly blocking the vehicle.

[0021] This embodiment employs a separate design of the rigid base module 1 and the collapsible energy-absorbing module 2. In the event of a violent collision, the vertical connector 202 can rapidly and controllably fracture after the lateral tensile force exceeds a preset threshold. This allows the energy-absorbing module 2 and the guardrail assembly 3 to separate from the fixed base 101 as a whole and be dragged by the vehicle. By utilizing the continuous friction between the guardrail assembly 3 and the ground, as well as the vehicle's own kinetic energy consumption, the collision energy is smoothly attenuated. This effectively avoids high-risk accident scenarios such as sudden stops, rollovers, or even ejection caused by a "hard-on-hard" collision between a traditional rigid column and a vehicle, significantly improving the road safety protection level. Moreover, this embodiment separates the vulnerable energy-absorbing part from the permanent base part. In most cases, after a collision, only the damaged upper energy-absorbing module 2 needs to be replaced to quickly restore the guardrail function, rarely causing serious damage to the fixed base 101. This can greatly shorten road closure and repair time, reducing indirect economic losses caused by traffic interruption.

[0022] It should be noted that, in this document, 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.

[0023] 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. A road guardrail post, comprising a basic module (1), characterized in that: The basic module (1) is detachably mounted with an energy-absorbing module (2), and the energy-absorbing module (2) is symmetrically provided with a panel assembly (3) on both sides. The energy-absorbing module (2) includes a buffer column (201), a vertical connector (202) is coaxially arranged at the lower end of the buffer column (201), two arc-shaped mounting buckles (203) are symmetrically arranged on the upper end of the buffer column (201), the two arc-shaped mounting buckles (203) are connected by fixing bolts (204), and a reflective strip (4) is arranged on the outside of the buffer column (201).

2. A road guardrail post according to claim 1, characterized in that: The basic module (1) includes a fixed base (101), the cross-sectional diameter of the fixed base (101) is the same as the cross-sectional diameter of the buffer column (201), a connecting square plate (102) is fixedly installed at the lower end of the fixed base (101), and a plug-in square groove (103) is opened inside the fixed base (101).

3. A road guardrail post according to claim 2, characterized in that: The size of the insertion slot (103) matches the size of the vertical connector (202).

4. A road guardrail post according to claim 1, characterized in that: The shear force of the vertical connector (202) is adjustable, and it may break if the lateral force exceeds the threshold.

5. A road guardrail post according to claim 2, characterized in that: A reflective strip (4) is fixedly installed on the outside of the fixed base (101).

6. A road guardrail post according to claim 2, characterized in that: The fixed base (101) is equipped with a jack for changing the height of the buffer column (201).

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