A type of crash-resistant road median barrier structure

Abstract

This utility model provides a collision-resistant road median barrier structure, belonging to the technical field of traffic safety engineering. It includes a protective mechanism comprising a multi-level energy-absorbing guardrail and double-wave galvanized steel vertical bars vertically installed within the multi-level energy-absorbing guardrail's inner cavity. This utility model, through the composite design of the multi-level energy-absorbing guardrail and the double-wave galvanized steel vertical bars, ensures both structural strength and graded deformation energy absorption, preventing breakage and disintegration. The deeply buried base, combined with a self-resetting hinged vibration damping component and a series damping system of double high-strength springs, prevents the posts from tipping over and buffers rebound. The honeycomb aluminum-filled posts and reinforced vertical grooves enhance longitudinal bending resistance while maintaining lightweight construction, preventing localized collapse that could intrude into the lane. The modular installation mechanism's conical limiting block, linked to a telescopic spring, ensures flexible displacement rather than rigid fracture upon impact. These design features work synergistically to stably absorb kinetic energy during high-speed impacts and control the amount of guardrail deformation, significantly reducing the risk of secondary accidents.

Description

Technical Field

[0001] This utility model belongs to the technical field of traffic safety engineering, specifically relating to a collision-resistant road central guardrail structure. Background Technology

[0002] A median barrier is a rigid or semi-rigid structure used to separate two-way lanes. It is usually made of materials such as metal (e.g., galvanized steel pipe, aluminum alloy), concrete, or high-strength plastic. Its main structure generally includes posts, beams, panels, and connectors. The posts are fixed by anchor bolts or directly buried in the road surface, and the beams and panels are assembled into a continuous barrier by welding or bolting.

[0003] Currently, the crashworthiness of some road median barriers remains insufficient, mainly due to inadequate structural strength or flawed energy-absorbing design. These barriers are prone to breakage, disintegration, or excessive lane intrusion during high-speed vehicle impacts, leading to secondary accidents. For example, some metal barriers collapse entirely upon impact due to insufficient post depth or inadequate tensile strength of the material; while some rigid concrete barriers, though not easily deformed, lack a buffering energy-absorbing mechanism, potentially causing severe vehicle rebound or injury to occupants. Utility Model Content

[0004] The purpose of this utility model is to provide a collision-resistant road median barrier structure, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A crash-resistant road median barrier structure includes,

[0007] The protective mechanism includes a multi-level energy-absorbing guardrail, a double-wave galvanized steel vertical bar installed vertically inside the multi-level energy-absorbing guardrail, and a groove opened on the outside of the multi-level energy-absorbing guardrail.

[0008] The load-bearing mechanism includes a base installed on the ground, a side plate fixedly installed on the outside of the base, and a self-resetting hinged vibration damping assembly disposed in the inner cavity of the base;

[0009] The self-resetting hinged vibration damping assembly includes a shell fixedly installed in the inner cavity of the base, a first high-strength spring fixedly installed in the inner cavity of the shell, and a buffer connecting piece fixedly installed at the bottom of the first high-strength spring. The bottom of the multi-stage energy-absorbing guardrail is fixedly connected to the top of the shell.

[0010] And, an installation mechanism for fixing the two multi-level energy-absorbing guardrails.

[0011] As a preferred embodiment of the present invention, the self-resetting hinged vibration damping assembly further includes a second high-strength spring fixedly installed at the bottom of the buffer connecting piece, and a chassis fixedly installed at the bottom of the second high-strength spring, the bottom of the chassis being fixedly installed in the inner cavity of the base.

[0012] As a preferred embodiment of this utility model, the supporting mechanism further includes a rubber buffer plate fixedly installed on the outside of the base, a water collection trough opened on the top of the rubber buffer plate, a connecting hose fixedly installed on the outside of the rubber buffer plate, and a water storage tank fixedly installed in the inner cavity of the base. The end of the connecting hose is fixedly connected to the outside of the water storage tank and they are interconnected.

[0013] As a preferred embodiment of the present invention, the protective mechanism further includes a honeycomb aluminum filling column fixedly installed in the inner cavity of the groove, a reinforcing vertical groove opened on the outside of the honeycomb aluminum filling column, and a positioning component disposed near the top of the inner cavity of the multi-level energy-absorbing guardrail.

[0014] As a preferred embodiment of this utility model, the positioning component includes a through hole opened at the top of the multi-level energy-absorbing guardrail, a telescopic spring fixedly installed in the inner cavity of the through hole, and a retainer fixedly installed at the top of the telescopic spring.

[0015] As a preferred embodiment of this utility model, the installation mechanism includes a positioning block, a reflector fixedly installed on the outside of the positioning block, a plug fixedly installed on the bottom of the positioning block, and a limiting block fixedly installed on the bottom of the plug.

[0016] In a preferred embodiment of this utility model, the diameter of the limiting block is smaller than the inner diameter of the sleeve, the limiting block is conical and has the same shape as the sleeve, and is movably engaged in its inner cavity.

[0017] Compared with existing technologies, the beneficial effects of this utility model are as follows: the composite design of multi-level energy-absorbing guardrails and double-wave galvanized steel vertical bars ensures both structural strength and graded deformation energy absorption, preventing breakage and disintegration; the deep-buried base, combined with self-resetting hinged vibration damping components and a series damping system of double high-strength springs, prevents the columns from tipping over and buffers rebound; the honeycomb aluminum-filled columns and reinforced vertical grooves enhance longitudinal bending resistance while maintaining lightweight construction, preventing local collapse that could lead to lane intrusion; the modular installation mechanism's conical limiting block and telescopic spring linkage ensure flexible displacement rather than rigid fracture upon impact. These synergistic designs effectively absorb kinetic energy during high-speed impacts and control guardrail deformation, significantly reducing the risk of secondary accidents. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a partial cross-sectional view of the multi-stage energy-absorbing guardrail structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the base of this utility model;

[0022] Figure 4 This is a partial cross-section of the multi-stage energy-absorbing guardrail and a disassembly diagram of the installation mechanism of this utility model;

[0023] Figure 5 This is an exploded view of the self-resetting hinged vibration damping component of this utility model.

[0024] In the picture:

[0025] 100. Protective mechanism; 110. Multi-level energy-absorbing guardrail; 120. Double-wave galvanized steel vertical bar; 130. Groove; 140. Honeycomb aluminum filled column; 150. Reinforced vertical groove; 160. Positioning component; 161. Through hole; 162. Telescopic spring; 163. Clip;

[0026] 200, Load-bearing mechanism; 210, Base; 220, Side plate; 230, Self-resetting hinged vibration damping assembly; 231, Shell; 232, First high-strength spring; 233, Buffer connecting plate; 234, Second high-strength spring; 235, Chassis; 240, Rubber buffer plate; 250, Water collection tank; 260, Connecting hose; 270, Water storage tank; 300, Installation mechanism; 310, Positioning block; 320, Reflector; 330, Insert rod; 340, Limiting block. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0030] Example

[0031] Reference Figures 1-5 This is an embodiment of the present invention, which provides a crash-resistant road median barrier structure, including:

[0032] The protective mechanism 100 includes a multi-level energy-absorbing guardrail 110, a double-wave galvanized steel vertical bar 120 vertically installed inside the multi-level energy-absorbing guardrail 110, and a groove 130 opened on the outside of the multi-level energy-absorbing guardrail 110.

[0033] The load-bearing mechanism 200 includes a base 210 installed on the ground, a side plate 220 fixedly installed on the outside of the base 210, and a self-resetting hinged vibration damping assembly 230 disposed in the inner cavity of the base 210.

[0034] The self-resetting hinged vibration damping assembly 230 includes a housing 231 fixedly installed in the inner cavity of the base 210, a first high-strength spring 232 fixedly installed in the inner cavity of the housing 231, and a buffer connecting piece 233 fixedly installed at the bottom of the first high-strength spring 232. The bottom of the multi-stage energy-absorbing guardrail 110 is fixedly connected to the top of the housing 231.

[0035] And, an installation mechanism 300 for fixing the two multi-stage energy-absorbing guardrails 110.

[0036] The combination of multi-stage energy-absorbing guardrail 110 and double-wave galvanized steel vertical bar 120 forms a rigid-flexible composite structure, which can absorb impact energy step by step during vehicle collision, reduce peak collision force, and reduce vehicle damage and occupant injury; the groove 130 design can guide the dispersion of impact force, avoid local stress concentration, and improve the overall deformation resistance of the guardrail; the self-resetting hinged vibration damping component 230 allows the guardrail to tilt moderately to buffer the impact when it is hit, and automatically resets through the first high-strength spring 232, reducing maintenance frequency.

[0037] Specifically, the self-resetting hinged vibration damping assembly 230 also includes a second high-strength spring 234 fixedly installed at the bottom of the buffer connecting piece 233, and a chassis 235 fixedly installed at the bottom of the second high-strength spring 234, with the bottom of the chassis 235 fixedly installed in the inner cavity of the base 210.

[0038] The second high-strength spring 234 and the first high-strength spring 232 form a series damping system to further absorb residual impact energy and prevent the multi-stage energy-absorbing guardrail 110 from rebounding too violently. The chassis 235 is fixed to the inner cavity of the base 210 to ensure that the self-resetting hinged vibration damping assembly 230 maintains structural stability after being hit, and avoids overall loosening or displacement.

[0039] Furthermore, the bearing mechanism 200 also includes a rubber buffer plate 240 fixedly installed on the outside of the base 210, a water collection trough 250 opened on the top of the rubber buffer plate 240, a connecting hose 260 fixedly installed on the outside of the rubber buffer plate 240, and a water storage tank 270 fixedly installed in the inner cavity of the base 210. The end of the connecting hose 260 is fixedly connected to the outside of the water storage tank 270 and they are interconnected.

[0040] Among them, the rubber buffer plate 240 can reduce rigid contact during vehicle collision, while the inclined surface design reduces the risk of vehicle climbing. The water collection trough 250 and the connecting hose 260 guide rainwater into the water storage tank 270. The overflowing rainwater can be used for greening irrigation or cleaning, improving environmental protection performance. At the same time, the rainwater in the inner cavity of the water storage tank 270 can stabilize the base 210 to a certain extent, and can also play a protective role when the vehicle is in collision.

[0041] Preferably, the protective mechanism 100 also includes a honeycomb aluminum filling column 140 fixedly installed in the inner cavity of the groove 130, a reinforcing vertical groove 150 opened on the outside of the honeycomb aluminum filling column 140, and a positioning component 160 disposed in the inner cavity of the multi-level energy-absorbing guardrail 110 near the top.

[0042] Among them, the honeycomb aluminum filling column 140 has both lightweight and high energy absorption characteristics, effectively reducing collision noise and preventing metal fragments from flying, while the reinforced vertical groove 150 enhances the longitudinal bending resistance of the honeycomb aluminum structure and avoids local collapse.

[0043] Furthermore, the positioning component 160 includes a through hole 161 opened on the top of the multi-level energy-absorbing guardrail 110, a telescopic spring 162 fixedly installed in the inner cavity of the through hole 161, and a retainer 163 fixedly installed on the top of the telescopic spring 162.

[0044] The through hole 161, together with the telescopic spring 162 and the retaining sleeve 163, enables quick locking or separation between guardrail modules, facilitating maintenance and replacement. The elastic buffer of the telescopic spring 162 allows the retaining sleeve 163 to move moderately when impacted, preventing breakage caused by rigid connection.

[0045] Furthermore, the installation mechanism 300 includes a positioning block 310, a reflector 320 fixedly installed on the outside of the positioning block 310, an insert rod 330 fixedly installed on the bottom of the positioning block 310, and a limiting block 340 fixedly installed on the bottom of the insert rod 330. The diameter of the limiting block 340 is smaller than the inner diameter of the sleeve 163. The limiting block 340 is conical and has the same shape as the sleeve 163, and is movably locked in its inner cavity.

[0046] Among them, the positioning block 310 and the insertion rod 330 simplify the guardrail splicing process and improve construction efficiency; the reflector 320 enhances the warning effect and improves visibility at night or in low visibility conditions, reducing the risk of secondary accidents; the matching design of the conical limit block 340 and the clamp 163 ensures a stable connection and can adaptively adjust the angle when impacted, avoiding rigid jamming that could cause structural damage; the limit block 340 can be flexibly disassembled, making it easy to replace damaged guardrail modules and reducing long-term maintenance costs.

[0047] In use, when a vehicle impacts the guardrail, the multi-stage energy-absorbing guardrail 110 first absorbs the initial impact energy through corrugated deformation, while the double-wave galvanized steel vertical bars 120 provide rigid support to prevent structural collapse; the impact force is dispersed through the grooves 130 and transmitted to the honeycomb aluminum filled columns 140 for further noise reduction and energy absorption. The impact load is transmitted through the bottom of the guardrail to the self-resetting hinged vibration damping assembly 230, where the kinetic energy is buffered by the series compression of the first high-strength spring 232 and the second high-strength spring 234, causing the guardrail to tilt slightly and then automatically return to its original position.

[0048] Rainwater is collected in the water tank 270 through the water collection trough 250 on the rubber buffer plate 240 and the connecting hose 260, which is both environmentally friendly and enhances the stability of the base 210. The telescopic springs 162 and the conical limit blocks 340 between the modules allow for moderate displacement to prevent breakage upon impact. After a collision, the damaged module can be quickly replaced through the positioning block 310 and the plug 330. The reflector 320 provides continuous warning. The whole system achieves graded dissipation of impact energy, structural self-recovery, and convenient maintenance in a coordinated manner.

[0049] In summary, the multi-level energy-absorbing guardrail 110 and the double-wave galvanized steel vertical bar 120, with their rigid-flexible composite design, combined with the groove 130 and honeycomb aluminum filled column 140, achieve step-by-step absorption and dispersion of impact energy, effectively reducing the impact force of collisions. The self-resetting hinged vibration damping component 230 achieves buffering and automatic reset functions through a series damping system of the first high-strength spring 232 and the second high-strength spring 234, significantly reducing maintenance needs. The modular installation mechanism 300 adopts a quick-connect design of positioning block 310, insertion rod 330 and conical limit block 340, facilitating construction and maintenance. At the same time, the rainwater collection system achieved by the rubber buffer plate 240, water collection trough 250 and water storage tank 270 also has anti-climbing, environmental protection and base 210 stability functions. The overall structure ensures high protection performance while also being easy to construct, low in maintenance costs and environmentally friendly, making it suitable for various road safety protection scenarios.

[0050] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0051] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0052] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A crash-resistant road median barrier structure, characterized in that: include, The protective mechanism (100) includes a multi-level energy-absorbing guardrail (110), a double-wave galvanized steel vertical bar (120) vertically installed in the inner cavity of the multi-level energy-absorbing guardrail (110), and a groove (130) opened on the outside of the multi-level energy-absorbing guardrail (110). The support mechanism (200) includes a base (210) installed on the ground, a side plate (220) fixedly installed on the outside of the base (210), and a self-resetting hinged vibration damping assembly (230) disposed in the cavity of the base (210). The self-resetting hinged vibration damping assembly (230) includes a shell (231) fixedly installed in the inner cavity of the base (210), a first high-strength spring (232) fixedly installed in the inner cavity of the shell (231), and a buffer connecting piece (233) fixedly installed at the bottom of the first high-strength spring (232). The bottom of the multi-stage energy-absorbing guardrail (110) is fixedly connected to the top of the shell (231). And, an installation mechanism (300) for securing the two multi-stage energy-absorbing guardrails (110).

2. The anti-collision road median barrier structure according to claim 1, characterized in that: The self-resetting hinged vibration damping assembly (230) also includes a second high-strength spring (234) fixedly installed at the bottom of the buffer connecting piece (233), and a chassis (235) fixedly installed at the bottom of the second high-strength spring (234), the bottom of the chassis (235) being fixedly installed in the inner cavity of the base (210).

3. The anti-collision road median barrier structure according to claim 2, characterized in that: The supporting mechanism (200) further includes a rubber buffer plate (240) fixedly installed on the outside of the base (210), a water collection trough (250) opened on the top of the rubber buffer plate (240), a connecting hose (260) fixedly installed on the outside of the rubber buffer plate (240), and a water storage tank (270) fixedly installed in the inner cavity of the base (210). The end of the connecting hose (260) is fixedly connected to the outside of the water storage tank (270) and they are interconnected.

4. The anti-collision road median barrier structure according to claim 3, characterized in that: The protective mechanism (100) also includes a honeycomb aluminum filling column (140) fixedly installed in the inner cavity of the groove (130), a reinforcing vertical groove (150) opened on the outside of the honeycomb aluminum filling column (140), and a positioning component (160) disposed near the top of the inner cavity of the multi-level energy-absorbing guardrail (110).

5. The anti-collision road median barrier structure according to claim 4, characterized in that: The positioning component (160) includes a through hole (161) on the top of the multi-level energy-absorbing guardrail (110), a telescopic spring (162) fixedly installed in the cavity of the through hole (161), and a retainer (163) fixedly installed on the top of the telescopic spring (162).

6. The anti-collision road median barrier structure according to claim 5, characterized in that: The installation mechanism (300) includes a positioning block (310), a reflector (320) fixedly installed on the outside of the positioning block (310), an insert rod (330) fixedly installed on the bottom of the positioning block (310), and a limiting block (340) fixedly installed on the bottom of the insert rod (330).

7. The anti-collision road median barrier structure according to claim 6, characterized in that: The diameter of the limiting block (340) is smaller than the inner diameter of the sleeve (163). The limiting block (340) is conical and has the same shape as the sleeve (163), and is movably locked in its inner cavity.

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