Urban road traffic guardrail safety protection device
By introducing a combination design of sliders and grooves, buffer springs and energy-absorbing columns into the traffic guardrail, the problem of secondary injury caused by force rebound is solved, and the structure is made detachable, reducing maintenance and replacement costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DEZHOU URBAN CONSTR ENG GRP CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-04-24
AI Technical Summary
Existing traffic guardrails are prone to rebound after a vehicle collision, causing secondary injuries, and the cost of repair and replacement is high.
It adopts a slider and groove structure and a buffer spring design, combined with an energy-absorbing column. Energy is absorbed by the sliding of the slider and the deformation of the energy-absorbing column, reducing the force rebound, and the rebound is hindered by friction. At the same time, the column and connecting plate are detachable for easy maintenance and replacement.
It effectively reduces secondary injuries to drivers caused by the rebound force after a vehicle collision, and lowers maintenance and replacement costs.
Smart Images
Figure CN224161013U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of traffic guardrail technology, and in particular to a safety protection device for urban road traffic guardrails. Background Technology
[0002] Traffic barriers are installed on roads to separate motor vehicles, non-motor vehicles, and pedestrians, thereby improving road traffic safety and order. They also prevent undesirable traffic behaviors, such as pedestrians, bicycles, or motor vehicles attempting to cross the road. These barriers typically have certain requirements for height, density, and strength. Most barriers consist of multiple vertical railings supporting horizontally arranged main bars to form a frame, which is then connected to mounting posts on both sides for fixation to the road.
[0003] In existing technologies, protective structures are typically added to traffic barriers to reduce the impact of vibrations from non-motorized vehicle collisions on pedestrians, thus providing protection. However, some barriers with protective structures have several shortcomings in practical use. For example, some buffer barriers absorb energy through elastic materials or springs, but energy absorption and dissipation are processes. Unabsorbed energy can cause the vehicle to rebound or sway upon impact, resulting in secondary injuries to occupants. For instance, after an electric vehicle collides with a barrier, the rebound force may cause the vehicle to move a certain distance in the opposite direction, causing occupants to collide with the vehicle due to inertia, resulting in secondary injuries to the driver. Furthermore, some barriers are highly integrated; while only parts of the structure may be damaged in a collision, the areas requiring replacement are often far larger than the actual damaged areas, undoubtedly increasing repair and replacement costs. Therefore, designing a barrier that can reduce secondary injuries to drivers caused by rebound force after a vehicle-barrier collision while also saving on repair and replacement costs has become a key issue in urban road traffic barrier technology. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a safety protection device for urban road traffic guardrails.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a safety protection device for urban road traffic guardrails, comprising: a column, wherein a sliding groove is provided on both sides of the middle of the column, a through hole is provided above and below the middle of one end of the column, a fixing block is provided at one end of the column, a through hole is provided above and below the middle of one end of the fixing block, a screw is threadedly connected to the middle of the fixing block and the through hole, side plates are fixedly installed on both sides of the fixing block, a plurality of energy-absorbing columns are fixedly installed above and below the middle of the middle of the two side plates, a sliding groove is provided in the middle of both sides of the fixing block, the sliding groove is connected to the side plate, a slider is slidably engaged in the middle of the sliding groove, a buffer spring is fixedly installed above and below one side of the slider end, and the fixing block is threadedly connected to the column by a screw.
[0006] In a preferred embodiment, a connecting plate is provided between the middle of each pair of columns. Both ends of the connecting plate are provided with slots. The slider is slidably engaged with the middle of the slot. An insertion hole is provided above the other end of the slider. Both ends of the connecting plate are provided with insertion holes through the slots. The insertion holes are connected.
[0007] In a preferred embodiment, pins are inserted into the middle of the first and second sockets, and the connecting plate is slidably engaged with the column through the connecting plate at the end.
[0008] In a preferred embodiment, a plurality of vertical rods are uniformly fixedly installed in the middle of the connecting plate, and a horizontal rod is fixedly installed between the upper and lower ends of the plurality of vertical rods.
[0009] In a preferred embodiment, a base is fixedly installed at the lower end of the column.
[0010] In a preferred embodiment, the base has fixing grooves on both sides.
[0011] In a preferred embodiment, the slider is slidably engaged with the second groove, and one side of each end of the connecting plate abuts against the energy-absorbing column.
[0012] In a preferred embodiment, the buffer spring can abut against the inner wall of the middle side plate on both sides of the fixing block.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0014] 1. When this utility model is in use, in the event of a collision, the slider will move inward along the slide groove. The buffer spring at the end will abut against the inner wall of the side plate of the fixed block and compress and deform, consuming part of the external force and playing a buffering role. At the same time, the two ends of the connecting plate abut against the energy-absorbing column. When the slider moves, the connecting plate will squeeze the energy-absorbing column, causing it to deform or break. The energy absorbed by the energy-absorbing column will not rebound and be released, which can effectively reduce the rebound of the force. In addition, there is friction between the slider and the slide groove. When the slider stops moving or begins to rebound, the friction will also play a hindering role, which can further reduce the rebound of the force and effectively avoid secondary injury to the driver caused by the rebound of the force.
[0015] 2. In use, the column, fixing block, connecting plate and slider are all detachable. After the guardrail collides with a vehicle, maintenance personnel can replace the damaged parts according to the actual damage, which can effectively reduce the cost of repair and daily maintenance. Attached Figure Description
[0016] Figure 1 This utility model provides a schematic diagram of the external structure of a safety protection device for urban road traffic guardrails.
[0017] Figure 2 This utility model provides a schematic diagram of the connection relationship between the slider and the connecting plate of a safety protection device for urban road traffic guardrails.
[0018] Figure 3 This utility model provides a schematic diagram of the connection relationship between the column and the slider of a safety protection device for urban road traffic guardrails.
[0019] Figure 4 This utility model provides a schematic diagram of the connection relationship between the column and the fixing block of a safety protection device for urban road traffic guardrails.
[0020] Legend:
[0021] 1. Column; 11. Slide groove one; 12. Through hole one; 13. Fixing block; 14. Through hole two; 15. Screw one; 16. Side plate; 17. Energy-absorbing column; 18. Slide groove two; 19. Slider; 20. Buffer spring; 21. Insertion hole one; 22. Connecting plate; 23. Insertion hole two; 24. Pin; 25. Vertical rod; 26. Horizontal rod; 27. Base; 28. Fixing groove; 29. Slot. Detailed Implementation
[0022] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings and examples.
[0023] It should be noted that 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. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.
[0024] Furthermore, it should be understood in the description of this utility model that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two main bodies at the connection point are not connected through a transitional structure, but are simply connected to form a whole through a connecting structure. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0026] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0027] Example 1: As Figure 1-4As shown, this utility model provides a technical solution: a safety protection device for urban road traffic guardrails, comprising: a column 1, with sliding grooves 11 on both sides of the middle of the column 1, through holes 12 on the upper and lower sides of the middle of one end of the column 1, a fixing block 13 at one end of the column 1, through holes 14 on the upper and lower sides of the middle of one end of the fixing block 13, screws 15 threadedly connected to the middle of the fixing block 13 and the through holes 14, and side plates 16 fixedly installed on both sides of the fixing block 13, with screws 15 threadedly installed on the upper and lower sides of the middle of the two side plates 16. Multiple energy-absorbing columns 17 are fixedly installed. The middle of both sides of the fixed block 13 is provided with a second groove 18. The first groove 11 is connected to the side plate 16. The middle of the first groove 11 is slidably engaged with a slider 19. The upper and lower sides of one end of the slider 19 are fixedly installed with buffer springs 20. The fixed block 13 is threadedly connected to the column 1 by a screw 15. The slider 19 is slidably engaged with the second groove 18. One side of each end of the connecting plate 22 abuts against the energy-absorbing column 17. The buffer springs 20 can abut against the inner wall of the middle side plate 16 on both sides of the fixed block 13.
[0028] In this embodiment, the guardrail is installed at a designated location, typically to separate non-motorized vehicle lanes and motorized vehicle lanes. Therefore, the side with the energy-absorbing column 17 is installed facing the motorized vehicle lane. When a non-motorized vehicle collides with the guardrail, the slider 19, along with the connecting plate 22 in the middle, moves inward along the slide groove 11. The buffer spring 20 installed at the end of the slider 19 will abut against the inner wall of the middle side plate 16 on both sides of the fixed block 13 and undergo compression deformation during the movement of the slider 19. When the spring deforms, it will consume some external force to play a buffering role. During the process, one side of each end of the connecting plate 22 abuts against the energy-absorbing column 17. As the slider 19 moves, the energy-absorbing column 17 will also be subjected to a certain force and deform or break. Once the energy absorbed by the deformed or broken energy-absorbing column 17 is absorbed, it will not be released in the form of rebound. At the same time, there is friction between the slider 19 and the slide groove. When the slider 19 stops moving or begins to rebound, the friction will also play a hindering role, which can further reduce the rebound of the force and effectively avoid secondary injury to the driver caused by the rebound of the force.
[0029] Example 2: As Figure 1-3 As shown, a connecting plate 22 is provided between the middle of each pair of columns 1. The two ends of the connecting plate 22 are provided with slots 29. The slider 19 is slidably engaged with the middle of the slot 29. The other end of the slider 19 is provided with a first insertion hole 21. The two ends of the connecting plate 22 are provided with second insertion holes 23 through the slots 29. The first insertion hole 21 and the second insertion hole 23 are connected. The middle of the first insertion hole 21 and the second insertion hole 23 is inserted with a pin 24. The connecting plate 22 is slidably engaged with the column 1 through the connecting plate 22 at the end. Multiple vertical rods 25 are evenly fixedly installed in the middle of the connecting plate 22. A horizontal rod 26 is fixedly installed between the upper and lower ends of the multiple vertical rods 25. The lower end of the column 1 is fixedly installed with a base 27.
[0030] In this embodiment, the slider 19 is slidably engaged in the slots 29 at both ends of the connecting plate 22, and is fixed by inserting the pin 24 into the connected socket 21 and socket 23. This connection method makes the assembly and disassembly of the column 1 and the connecting plate 22 simple and convenient. When the structure needs to be installed or repaired, the connection or separation of the column 1 and the connecting plate 22 can be completed simply by inserting or pulling out the pin 24. No complicated tools and tedious steps are required, which improves the efficiency of construction and maintenance. A connecting plate 22 is set between the middle of every two columns 1 and connected by the slider 19 and the pin 24, so that the columns 1 form a relatively stable overall structure. The connecting plate 22 can effectively transmit and disperse the external force borne by the column 1, reduce the stress concentration of a single column 1, thereby improving the stability and load-bearing capacity of the entire structure. A base 27 is fixedly installed at the lower end of the column 1. The base 27 increases the contact area between the column 1 and the ground, which can improve the support stability of the structure. It can also effectively fix the guardrail by driving the fixing bolt into the fixing slot 28.
[0031] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.
[0032] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A safety protection device for urban road traffic guardrails, comprising a post (1), characterized in that: The column (1) has sliding grooves (11) on both sides of its middle section. A through hole (12) is provided above and below the middle of one end of the column (1). A fixing block (13) is provided at one end of the column (1). A through hole (14) is provided above and below the middle of one end of the fixing block (13). A screw (15) is threaded into the middle of both the fixing block (13) and the through hole (14). Side plates (16) are fixedly installed on both sides of the fixing block (13). Multiple energy-absorbing columns (17) are fixedly installed above and below the middle of the side plate (16). The middle of both sides of the fixing block (13) is provided with a second sliding groove (18). The first sliding groove (11) is connected to the side plate (16). A slider (19) is slidably engaged in the middle of the first sliding groove (11). A buffer spring (20) is fixedly installed above and below one side of the slider (19). The fixing block (13) is threadedly connected to the column (1) by a screw (15).
2. The urban road traffic guardrail safety protection device according to claim 1, characterized in that: A connecting plate (22) is provided between the middle of each pair of columns (1). Both ends of the connecting plate (22) are provided with slots (29). The slider (19) is slidably engaged with the middle of the slot (29). A first insertion hole (21) is provided above the other end of the slider (19). Both ends of the connecting plate (22) are provided with second insertion holes (23) through the slots (29). The first insertion hole (21) and the second insertion hole (23) are connected.
3. The urban road traffic guardrail safety protection device according to claim 2, characterized in that: The middle of the first socket (21) and the second socket (23) are connected with pins (24), and the connecting plate (22) is slidably engaged with the column (1) through the connecting plate (22) at the end.
4. The urban road traffic guardrail safety protection device according to claim 3, characterized in that: A plurality of vertical rods (25) are uniformly fixedly installed in the middle of the connecting plate (22), and a horizontal rod (26) is fixedly installed between the upper and lower ends of the plurality of vertical rods (25).
5. A safety protection device for urban road traffic guardrails according to claim 4, characterized in that: A base (27) is fixedly installed at the lower end of the column (1).
6. A safety protection device for urban road traffic guardrails according to claim 5, characterized in that: The base (27) has fixing grooves (28) on both sides.
7. A safety protection device for urban road traffic guardrails according to claim 4, characterized in that: The slider (19) is slidably engaged with the second slide groove (18), and one side of each end of the connecting plate (22) abuts against the energy-absorbing column (17).
8. A safety protection device for urban road traffic guardrails according to claim 1, characterized in that: The buffer spring (20) can abut against the inner wall of the middle side plate (16) on both sides of the fixing block (13).