A combined crash barrier
By using a modular crash barrier design, which incorporates support legs, a modular mechanism, and a buffer crash barrier, the problems of inconvenient loading and unloading and impact damage to the guardrail are solved. This design enables quick loading and unloading and effective buffer protection, thereby enhancing the stability and safety of the guardrail.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG SHENLONG METAL MFG CO LTD
- Filing Date
- 2025-09-29
- Publication Date
- 2026-07-10
AI Technical Summary
The existing guardrails are mostly fixed with bolts at the connection points, which makes it inconvenient to install and remove them. They also lack the ability to be installed and removed quickly, are easily damaged when hit by vehicles, and do not have a buffer protection function.
The guardrail adopts a modular design, which is fixedly connected by support legs and support blocks. It utilizes a combination mechanism and a buffer anti-collision mechanism, including components such as pressure blocks, sliding bars, ear plates, nuts, buffer bars, buffer plates and buffer airbags, to achieve quick loading and unloading and buffer protection.
It enables quick installation and removal of guardrails and provides effective cushioning and protection, enhancing the stability and safety of the guardrails and reducing damage caused by vehicle collisions.
Smart Images

Figure CN224478778U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of guardrail technology, specifically a combined anti-collision guardrail. Background Technology
[0002] The guardrails mentioned here refer to industrial "protective railings." Guardrails are mainly used in residential areas, highways, commercial areas, and public places to protect personal safety and equipment. They are commonly made of steel, such as stainless steel, round steel pipes, square steel pipes, or profiled steel sheets and wire. Surface treatment processes include fully automatic electrostatic powder coating (i.e., powder coating) or painting. In recent years, interlocking and assembled guardrails made of aluminum alloy have also become popular. Roadside guardrails are easily damaged by collisions.
[0003] Utility model patent CN213898431U discloses a guardrail, which differs in that it includes several guardrail units, each of which includes posts, warning panels, back ribs, panels, and an upper crossbeam. There are two posts spaced apart, with a warning panel and several back ribs arranged vertically at intervals between them. The upper end of the warning panel has an installation groove extending along the length of the guardrail unit. Several slots are provided on the front side of each back rib. Several panels are sequentially spliced along the length of the guardrail unit, with the lower end of each panel fitting into the installation groove. Each panel has a first connecting end and a second connecting end, with adjacent first and second connecting ends fitting into corresponding slots. The upper crossbeam is fitted over the upper end of each panel, and both ends are connected to the corresponding posts. This utility model features a panel and back rib interlocking mechanism, resulting in good stability and safety.
[0004] Currently, guardrails are mostly fixed together with multiple bolts, which is not only troublesome but also does not achieve the effect of quick installation and removal. At the same time, existing guardrails are easily hit by vehicles when installed on the roadside, but they do not have a buffer protection function, making them easy to be damaged by impacts. Summary of the Invention
[0005] The purpose of this utility model is to provide a combined anti-collision guardrail that solves the problems of guardrail installation, removal, and anti-collision.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a combined anti-collision guardrail, comprising a first guardrail and a second guardrail, the first guardrail and the second guardrail being the same size, a plurality of support legs being fixedly connected to the lower ends of the first guardrail and the second guardrail respectively, a support block being fixedly connected to the lower end of the support leg, the support block having a plurality of threaded holes, a combination mechanism being provided for the first guardrail and the second guardrail, and a buffer anti-collision mechanism being provided for the first guardrail and the second guardrail, the combination mechanism including a pressure block, a pressure block being slidably connected to the upper ends of the first guardrail and the second guardrail respectively, a plurality of front sliding rods being fixedly connected to the front side of the lower end of the pressure block, a plurality of rear sliding rods being fixedly connected to the rear side of the lower end of the pressure block, and a buffer anti-collision mechanism including a buffer rod, a buffer rod being slidably connected to the first guardrail and the second guardrail respectively, an anti-detachment block being fixedly connected to one end of the buffer rod, and a buffer plate being fixedly connected to the other end of the buffer rod.
[0007] Preferably, the front slide bar is slidably connected to a plurality of front ear plates, the rear slide bar is slidably connected to a plurality of rear ear plates, the front ear plates are respectively fixedly connected to the front side of the first guardrail and the second guardrail, and the rear ear plates are respectively fixedly connected to the rear side of the first guardrail and the second guardrail.
[0008] Preferably, the lower ends of the front slide rod and the rear slide rod are slidably connected to top blocks, and the lower ends of the front slide rod and the rear slide rod are respectively rotatably connected to nuts by threads, and the top blocks are tightly attached to the lower ends of the first railing and the second railing.
[0009] Preferably, a buffer airbag is fixedly connected to the front side of the buffer plate, and a corrugated sleeve is fixedly connected to the other side of the buffer plate. The other side of the corrugated sleeve is fixedly connected to the first guardrail and the second guardrail respectively.
[0010] Preferably, the buffer rod is slidably connected to a spring, one end of the spring is fixedly connected to the buffer plate, and the other side of the spring is fixedly connected to the first guardrail and the second guardrail respectively.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] 1. This utility model uses a pressure block to press down on the upper ends of the first and second railings, a top block to tightly adhere to the lower ends of the first and second railings, a front sliding rod to slide and connect with the front ear plate, and a rear sliding rod to slide and connect with the rear ear plate. Then, a nut limits the lower ends of the front and rear sliding rods, thereby limiting and fixing the lower ends of the front and rear sliding rods to prevent them from separating, thus facilitating the loading and unloading of the first and second railings.
[0013] 2. This utility model increases the buffering capacity of the buffer plate by connecting the buffer rod with the spring. The buffer airbag also increases the buffer protection performance. When the buffer airbag is hit, it provides a buffering effect, which protects the first and second guardrails respectively, and also protects the vehicle that is hit. Attached Figure Description
[0014] Figure 1 The overall three-dimensional structure of this utility model Figure 1 ;
[0015] Figure 2 The overall three-dimensional structure of this utility model Figure 2 ;
[0016] Figure 3 This is a partial three-dimensional structural view of the present invention;
[0017] Figure 4 This is a partial cross-sectional view of a part of the structure of this utility model.
[0018] In the diagram: 1. First guardrail; 2. Second guardrail; 3. Support leg; 4. Support block; 5. Threaded hole; 6. Combined mechanism; 7. Buffer and anti-collision mechanism; 61. Pressure block; 62. Front slide bar; 63. Rear slide bar; 64. Front ear plate; 65. Rear ear plate; 66. Top block; 67. Nut; 71. Buffer rod; 72. Anti-detachment block; 73. Buffer plate; 74. Buffer airbag; 75. Corrugated sleeve; 76. Spring. Detailed Implementation
[0019] 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.
[0020] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4A combined crash barrier includes a first guardrail 1 and a second guardrail 2, both of the same size. The first guardrail 1 and the second guardrail 2 are existing technologies. Multiple support legs 3 are fixedly connected to the lower ends of both the first guardrail 1 and the second guardrail 2. Support blocks 4 are fixedly connected to the lower ends of the support legs 3. The support legs 3 and support blocks 4 provide support and limit the movement of the first guardrail 1 and the second guardrail 2. The support blocks 4 have multiple threaded holes 5, facilitating bolt connection and installation on the ground. A combination mechanism 6 and a buffer crash barrier 7 are provided for the first guardrail 1 and the second guardrail 2. This technical solution improves upon the problems mentioned in the prior art. Other technical features of this solution... The technical problems are existing technologies, and will not be described in detail in this technical solution. The combined mechanism 6 includes a pressure block 61. The upper ends of the first guardrail 1 and the second guardrail 2 are respectively slidably connected to the pressure block 61. By setting the pressure block 61, the upper ends of the first guardrail 1 and the second guardrail 2 are respectively pressed down and limited. Multiple front sliding rods 62 are fixedly connected to the lower front side of the pressure block 61, and multiple rear sliding rods 63 are fixedly connected to the lower rear side of the pressure block 61. The buffer and anti-collision mechanism 7 includes a buffer rod 71. The first guardrail 1 and the second guardrail 2 are respectively slidably connected to the buffer rod 71. One end of the buffer rod 71 is fixedly connected to an anti-detachment block 72. By setting the anti-detachment block 72, the buffer rod 71 is limited to prevent the buffer rod 71 from detaching from the first guardrail 1 and the second guardrail 2. The other end of the buffer rod 71 is fixedly connected to a buffer plate 73.
[0021] Please see Figure 1 , Figure 2 , Figure 3 The front slide rod 62 is slidably connected to multiple front ear plates 64, and the rear slide rod 63 is slidably connected to multiple rear ear plates 65. The front ear plates 64 are fixedly connected to the front side of the first guardrail 1 and the second guardrail 2, respectively, and the rear ear plates 65 are fixedly connected to the rear side of the first guardrail 1 and the second guardrail 2, respectively. The lower ends of the front slide rod 62 and the rear slide rod 63 are slidably connected to top blocks 66. The top blocks 66 are used to press down and limit the lower ends of the first guardrail 1 and the second guardrail 2, respectively. The lower ends of the front slide rod 62 and the rear slide rod 63 are rotatably connected to nuts 67 by threads, and the top blocks 66 are tightly attached to the lower ends of the first guardrail 1 and the second guardrail 2.
[0022] Please see Figure 1 , Figure 2 , Figure 4A buffer airbag 74 is fixedly connected to the front side of the buffer plate 73, and a corrugated sleeve 75 is fixedly connected to the other side of the buffer plate 73. The corrugated sleeve 75 is used to wrap and protect the spring 76. The other side of the corrugated sleeve 75 is fixedly connected to the first guardrail 1 and the second guardrail 2 respectively. The buffer rod 71 is slidably connected to the spring 76. One end of the spring 76 is fixedly connected to the buffer plate 73, and the other side of the spring 76 is fixedly connected to the first guardrail 1 and the second guardrail 2 respectively.
[0023] The specific implementation process of this utility model is as follows: the first railing 1 and the second railing 2 are brought into contact from left to right, and then the front sliding rod 62 and the rear sliding rod 63 are slidably inserted, so that the front sliding rod 62 slides through the inside of the front ear plate 64 and the rear sliding rod 63 slides through the inside of the rear ear plate 65. Then the pressure block 61 is pressed tightly against the upper end of the first railing 1 and the second railing 2, and the lower end is limited by the top block 66. Then the connecting nut 67 is rotated, so that the combination mechanism 6 can be installed, and the first railing 1 and the second railing 2 are combined and installed at the same time.
[0024] The first guardrail 1 and the second guardrail 2 are installed and connected in a suitable position by bolts. When the vehicle hits the buffer airbag 74, it will be protected by the buffer airbag 74. The spring 76 increases the elasticity of the buffer airbag 74. The buffer airbag 74 will push the buffer plate 73 to move towards the first guardrail 1 and the second guardrail 2. The buffer rod 71 is slidably connected to the first guardrail 1 and the second guardrail 2 respectively. Then the spring 76 is compressed and contracted under force, and the corrugated sleeve 75 will also automatically extend and retract. Thus, the first guardrail 1 and the second guardrail 2 can be buffered and protected, and the vehicle can also be protected.
[0025] 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 combined crash barrier, comprising a first guardrail (1) and a second guardrail (2), characterized in that: The first guardrail (1) and the second guardrail (2) are the same size. Multiple support legs (3) are fixedly connected to the lower ends of the first guardrail (1) and the second guardrail (2). Support blocks (4) are fixedly connected to the lower ends of the support legs (3). The support blocks (4) have multiple threaded holes (5). A combination mechanism (6) is provided for the first guardrail (1) and the second guardrail (2). A buffer and anti-collision mechanism (7) is provided for the first guardrail (1) and the second guardrail (2). The combination mechanism (6) includes a pressure block (61). The first guardrail (1) The first guardrail (1) and the second guardrail (2) are respectively slidably connected to pressure blocks (61). Multiple front sliding rods (62) are fixedly connected to the front side of the lower end of the pressure block (61). Multiple rear sliding rods (63) are fixedly connected to the rear side of the lower end of the pressure block (61). The buffer anti-collision mechanism (7) includes a buffer rod (71). The first guardrail (1) and the second guardrail (2) are respectively slidably connected to the buffer rod (71). One end of the buffer rod (71) is fixedly connected to an anti-detachment block (72). The other end of the buffer rod (71) is fixedly connected to a buffer plate (73).
2. The combined crash barrier according to claim 1, characterized in that: The front slide bar (62) is slidably connected to a plurality of front ear plates (64), and the rear slide bar (63) is slidably connected to a plurality of rear ear plates (65). The front ear plates (64) are fixedly connected to the front side of the first guardrail (1) and the second guardrail (2), respectively, and the rear ear plates (65) are fixedly connected to the rear side of the first guardrail (1) and the second guardrail (2), respectively.
3. A combined crash barrier according to claim 2, characterized in that: The lower ends of the front slide rod (62) and the rear slide rod (63) are slidably connected to a top block (66), and the lower ends of the front slide rod (62) and the rear slide rod (63) are respectively rotatably connected to a nut (67) by a thread. The top block (66) is in close contact with the lower ends of the first railing (1) and the second railing (2).
4. A combined crash barrier according to claim 1, characterized in that: A buffer airbag (74) is fixedly connected to the front side of the buffer plate (73), and a corrugated sleeve (75) is fixedly connected to the other side of the buffer plate (73). The other side of the corrugated sleeve (75) is fixedly connected to the first guardrail (1) and the second guardrail (2) respectively.
5. A combined crash barrier according to claim 1, characterized in that: The buffer rod (71) is slidably connected to a spring (76), one end of the spring (76) is fixedly connected to the buffer plate (73), and the other side of the spring (76) is fixedly connected to the first guardrail (1) and the second guardrail (2) respectively.