Self-resetting highway guardrail end device

Abstract

The utility model relates to the technical field of highway traffic, and specifically discloses a self-resetting highway guardrail end device, which comprises a vertical shaft, a buffer cylinder, a top shaft connected to the top end of the vertical shaft through a thread, and a convex shaft integrally formed at the top end of the top shaft. The convex shaft sleeve ring seat A is provided with four springs A on the outer circumferential surface, and the ring seat A is arranged in the long cylinder. The bottom end of the vertical shaft is connected to a bottom shaft through a thread, the bottom shaft sleeve ring seat B is provided with four springs B on the outer circumferential surface, and the ring seat B is arranged in the short cylinder. The long cylinder and the short cylinder are respectively fixed to the top and bottom of the frame body. The device replaces the traditional hard steel guardrail with the buffer cylinder, and the hollow structure can be self-reset or simply hammered to restore after collision, thereby maintaining the structural integrity and continuity and continuously and effectively protecting. The two ends of the vertical shaft are elastically installed with the frame body through the ring seat with springs, can be elastically offset by a small distance, cooperate with the buffer cylinder to improve the self-resetting performance of the buffer cylinder, and the bottom end of the vertical shaft is short and the top end is long, so that the bottom end is separated from the short cylinder when the vertical shaft is lifted, and the buffer cylinder can be taken out by pulling it down after offset, thereby facilitating replacement and maintenance.

Description

Technical Field

[0001] This utility model relates to the field of highway transportation technology, and more specifically, to a self-resetting highway guardrail end device. Background Technology

[0002] In the field of highway traffic safety, guardrail ends are key protective components, and their performance directly affects the level of road safety. Traditional highway guardrail ends are mostly made of hard steel, which, although possessing a certain strength, has significant defects in actual use.

[0003] On the one hand, traditional rigid steel guardrail ends lack an effective buffering mechanism during vehicle collisions, allowing collision energy to be directly transferred. This not only easily leads to severe vehicle damage but also causes significant injury to occupants. Moreover, after a collision, the rigid steel guardrail ends often undergo irreversible deformation or breakage, compromising structural integrity and continuity, and failing to provide continuous effective protection. They require complete replacement, resulting in high maintenance costs and time consumption.

[0004] On the other hand, existing guardrail end devices are inconvenient to replace and maintain. When a guardrail end is damaged and needs replacement, the disassembly process is complex due to its unreasonable structural design, requiring a lot of manpower and time, which affects the normal traffic flow and maintenance efficiency of the highway. Based on this, a new type of highway guardrail end device is proposed. Utility Model Content

[0005] In view of the above-mentioned technical problems in related technologies, this utility model provides a self-resetting highway guardrail end device, which can solve the above problems.

[0006] To achieve the above-mentioned technical objectives, the technical solution of this utility model is implemented as follows: The self-resetting highway guardrail end device includes a vertical shaft, a buffer cylinder sleeved on the outside of the vertical shaft, a top shaft threaded to the top of the vertical shaft, a convex shaft integrally formed at the top of the top shaft, a ring seat A sleeved on the convex shaft, four springs A fixedly installed on the outer circumference of the ring seat A, the ring seat A sleeved inside the long cylinder, a bottom shaft threaded to the bottom end of the vertical shaft, a ring seat B sleeved on the bottom shaft, four springs B fixedly installed on the outer circumference of the ring seat B, the ring seat B sleeved inside the short cylinder, the long cylinder and the short cylinder are fixed to the top and bottom of the frame respectively.

[0007] Furthermore, spring A contacts the inner wall of the long cylinder, and spring B contacts the inner wall of the short cylinder. The length of the long cylinder is three times the length of the short cylinder.

[0008] Furthermore, a spiral reflective strip is fixedly installed on the surface of the buffer cylinder.

[0009] Furthermore, an LED alarm light strip is fixedly installed at the top front end of the frame, with the LED alarm light strip recessed into the front end face of the frame.

[0010] Furthermore, a column is fixedly installed on one side of the frame by bolts, and internal thread holes are opened on both sides of the column.

[0011] The beneficial effects of this utility model are as follows: The device of this application replaces the traditional hard steel guardrail with a buffer cylinder. The hollow structure of the buffer cylinder can self-reset after a collision or restore its original shape by simple hammering, maintaining the structural integrity and continuity of the guardrail end, thereby continuously providing effective protection. The two ends of the vertical shaft of the buffer cylinder are elastically installed with the long and short cylinders of the frame through ring seats with springs, so that the vertical shaft can make elastic offset within a small range, which, together with the buffer cylinder, improves the buffer self-resetting performance. The vertical shaft of the fixed buffer cylinder is designed with a short bottom and a long top. By raising the vertical shaft, the bottom of the vertical shaft is first separated from the short cylinder. After shifting the vertical shaft, the buffer cylinder can be removed by pulling the vertical shaft downward. This structural design makes it convenient to replace and maintain the buffer cylinder. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in 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.

[0013] The present invention will now be described in further detail with reference to the accompanying drawings.

[0014] Figure 1 This is a 3D view of a self-resetting highway guardrail end device; Figure 2 It is an exploded installation view of the vertical shaft, long cylinder, and short cylinder; Figure 3 This is the front view of the self-resetting highway guardrail end device.

[0015] In the picture: 1. Frame; 2. Short cylinder; 3. Buffer cylinder; 301. Spiral reflective strip; 4. Long cylinder; 5. Top shaft; 501. Convex shaft; 6. Vertical shaft; 7. LED alarm light strip; 8. Column; 9. Bottom shaft; 10. Ring seat A; 1001. Spring A; 11. Ring seat B; 1101. Spring B. Detailed Implementation

[0016] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0017] like Figure 1-3 As shown, this utility model discloses a self-resetting highway guardrail end device, including a vertical shaft 6, a buffer cylinder 3 sleeved on the outside of the vertical shaft 6, a top shaft 5 threadedly connected to the top of the vertical shaft 6, a convex shaft 501 integrally formed at the top of the top shaft 5, a ring seat A10 sleeved on the convex shaft 501, four springs A1001 fixedly installed on the outer circumference of the ring seat A10, the ring seat A10 sleeved inside the long cylinder 4, a bottom shaft 9 threadedly connected to the bottom end of the vertical shaft 6, a ring seat B11 sleeved on the bottom shaft 9, four springs B1101 fixedly installed on the outer circumference of the ring seat B11, the ring seat B11 sleeved inside the short cylinder 2, the long cylinder 4 and the short cylinder 2 are respectively fixed to the top and bottom of the frame 1, the springs A1001 are in contact with the inner wall of the long cylinder 4, the springs B1101 are in contact with the inner wall of the short cylinder 2, and the length of the long cylinder 4 is three times the length of the short cylinder 2.

[0018] Example 1: The buffer cylinder 3 is made of high-density polyethylene (PE) material with a wall thickness of 4mm. The buffer cylinder 3 is sleeved on the outside of the vertical shaft 6. The top and bottom of the vertical shaft 6 are provided with threaded holes for threaded connection and fixation of the top shaft 5 and the bottom shaft 9. Both the top shaft 5 and the bottom shaft 9 are provided with convex rings for abutting against the buffer cylinder 3. The top of the top shaft 5 is provided with a convex shaft 501 that is 4mm smaller than its outer diameter. The convex shaft 501 is sleeved with the ring seat A10 and fixed with screws. The bottom of the ring seat A10 is supported on the top of the top shaft 5. The bottom shaft 9 is inside the ring seat B11. During installation, first insert the top shaft 5 at the top of the vertical shaft 6 into the long cylinder 4. After the top shaft 5 is completely inserted into the long cylinder 4, align the bottom shaft 9 with the short cylinder 2 and push the vertical shaft 6 downwards to sleeve the bottom shaft 9 with the short cylinder 2. At this time, the top shaft 5 at the top of the vertical shaft 6 is still located inside the long cylinder 4. The thickness of the frame 1 is smaller than the diameter of the buffer cylinder 3. During a collision, the buffer cylinder 3 contacts the vehicle. The shape of the frame 1 can be designed according to the road surface and can be arc-shaped. This device is suitable for accident-prone areas such as ramps and curves. The vehicle rolls into contact with the roller, which can reduce vehicle damage. If the impact force is not large and the buffer cylinder 3 is deformed but not broken, it can be reset by its own material self-resetting or by adsorption and pulling. The limiting ring seats at both ends of the vertical shaft 6 are designed with springs to cushion the impact of the vertical shaft and reduce damage. The LED warning light strip 7 is connected to the road administration power line for power supply. The LED warning light strip 7 is turned on in accident-prone sections such as sharp curve ramps to increase visibility.

[0019] In the preferred technical solution, a spiral reflective strip 301 is fixedly installed on the surface of the buffer cylinder 3. The spiral reflective strip 301 can reflect light after being illuminated by vehicle headlights, thereby improving the visibility of the buffer cylinder 3 and achieving a warning effect.

[0020] In the preferred technical solution, an LED warning light strip 7 is fixedly installed on the top front end of the frame 1. The LED warning light strip 7 is recessed and installed on the front end face of the frame 1. The recessed design can prevent the vehicle from scratching the LED warning light strip 7.

[0021] In the preferred technical solution, a column 8 is fixedly installed on one side of the frame 1 by bolts. The column 8 has internal threaded holes on both sides and is used to connect and fix two adjacent frames 1.

[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-resetting highway guardrail end device, characterized in that, The structure includes a vertical shaft (6), a buffer cylinder (3) is fitted on the outside of the vertical shaft (6), a top shaft (5) is threaded to the top of the vertical shaft (6), a convex shaft (501) is integrally formed on the top of the top shaft (5), a ring seat A (10) is fitted on the convex shaft (501), four springs A (1001) are fixedly installed on the outer circumference of the ring seat A (10), the ring seat A (10) is fitted inside the long cylinder (4), a bottom shaft (9) is threaded to the bottom end of the vertical shaft (6), a ring seat B (11) is fitted on the bottom shaft (9), four springs B (1101) are fixedly installed on the outer circumference of the ring seat B (11), the ring seat B (11) is fitted inside the short cylinder (2), and the long cylinder (4) and the short cylinder (2) are fixed to the top and bottom of the frame (1) respectively.

2. The self-resetting highway guardrail end device according to claim 1, characterized in that, The spring A (1001) is in contact with the inner wall of the long cylinder (4), the spring B (1101) is in contact with the inner wall of the short cylinder (2), and the length of the long cylinder (4) is three times the length of the short cylinder (2).

3. The self-resetting highway guardrail end device according to claim 1, characterized in that, A spiral reflective strip (301) is fixedly installed on the surface of the buffer cylinder (3).

4. The self-resetting highway guardrail end device according to claim 1, characterized in that, An LED alarm light strip (7) is fixedly installed on the top front end of the frame (1), and the LED alarm light strip (7) is recessed and installed on the front end face of the frame (1).

5. The self-resetting highway guardrail end device according to claim 1, characterized in that, A column (8) is fixedly installed on one side of the frame (1) by bolts, and internal thread holes are opened on both sides of the column (8).

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