Column cap of stand column of highway guardrail

Abstract

The utility model discloses an expressway guardrail stand column cap which solves the problems that a traditional column cap material is large in installation difficulty, prone to mechanical damage, poor in anti-theft performance, difficult to replace after being damaged, high in maintenance cost and the like. The column cap is a silica gel integrally-formed part and is provided with a cap cover, a fixed cylinder and an inner cylinder, the cap cover is provided with the fixed cylinder and the inner cylinder which extend downwards and are coaxially arranged, the hardness of the cap cover is larger than that of the fixed cylinder, the length of the fixed cylinder is larger than that of the inner cylinder, the shore hardness of the fixed cylinder ranges from 30 to 40, and the shore hardness of the inner cylinder ranges from 30 to 40. The axial length of the fixing cylinder is larger than or equal to the diameter of a guardrail stand column to be connected. The column cap in the technology can be quickly mounted, fasteners and binders are not needed in the mounting process, and the column cap can be quickly mounted at the top end of the stand column.

Description

Technical Field

[0001] The utility model relates to the technical field of highway guardrail column caps Background Art

[0002] For the sake of safety and closure, guardrails are installed on both sides of the highway. Usually, the guardrails are composed of evenly distributed steel pipe columns and corrugated beams. In order to prevent water from accumulating in the column tube and corroding the roadbed and the column, column caps need to be installed on the column to block rainwater and make the column beautiful.

[0003] At present, the guardrail posts on highway columns are generally round steel pipes, and the column caps are disc-shaped covers that snap on the top ports of the columns. Their main function is to prevent rainwater or debris from entering the interior of the columns. They are made of steel or engineering plastics. The metal and plastic column caps of this structure are difficult to install, have poor anti-theft performance, are easily corroded and damaged, and lack sufficient visibility. With the increase in road traffic, especially at night or in bad weather conditions, it is difficult to serve as a warning in low-light environments, which can easily lead to driver misjudgment and increase the risk of traffic accidents. Therefore, it is particularly important to develop a column cap form that can reduce the difficulty of installation and improve visibility and warning.

[0004] Chinese patent document 201310512539.0 discloses a column cap for a highway guardrail column, including a column cap body, a through hole is opened at the lower center of the column cap body, and screws are used to fasten the column and the column cap. The disadvantages of this technology are that it needs to be drilled and installed with screws, which is inconvenient to install, and there is a problem of water seepage at the location of the drill hole and the column cap. Summary of the invention

[0005] In order to solve the deficiencies of the existing technology, the utility model provides a highway guardrail column cap, which firstly solves the problems of difficult installation of traditional column cap materials, susceptibility to mechanical damage, poor anti-theft performance, difficulty in replacing damaged column caps, and high maintenance costs, thereby increasing the service life of road facilities and reducing maintenance costs. Secondly, it solves the problems of insufficient performance and poor visibility of existing column caps. The warning and reflective functions of the new column cap will enhance the recognition of highway layout by road users, effectively improving driving safety at night and in severe weather conditions.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A cap for a highway guardrail column, which is an integrally molded silicone part, characterized in that the cap comprises a cap cover, a fixing tube and an inner tube, wherein the cap cover comprises a fixing tube and an inner tube extending downward and coaxially arranged, the hardness of the cap cover is greater than the hardness of the fixing tube, and the length of the fixing tube is greater than the length of the inner tube, the fixing tube has a Shore hardness between 30-40, and the axial length of the fixing tube is greater than or equal to the diameter of the guardrail column to be connected.

[0008] Furthermore, the wall thickness of the fixing tube is 1 cm, and the fixing tube has two states: curled and unfolded.

[0009] Furthermore, the cap and the inner cylinder have a Shore hardness of 50-60.

[0010] Furthermore, the cap has an arc-shaped top surface, and the interior of the cap is a hollow structure.

[0011] Furthermore, the hollow structure is filled with concrete.

[0012] Furthermore, a spring clamp ring installation groove is designed inside the inner cylinder, and a spring clamp ring is installed in the spring clamp ring installation groove.

[0013] Furthermore, the wall thickness of the inner tube is designed to be 2-4 cm.

[0014] Furthermore, a steel hoop is fixed on the outside of the fixing tube.

[0015] The beneficial effects of the utility model are:

[0016] The one-piece molding of silicone with reflective material is used to enhance the visibility of highway ancillary facilities, improve road users' recognition of highway layout, and improve driving safety at night and in severe weather conditions.

[0017] It is made of one-piece silicone with reflective material. The silicone fits seamlessly with the top of the pile, which can effectively prevent rainwater from soaking and has better anti-corrosion effect.

[0018] The column cap in this technology can be installed quickly, and no fasteners and adhesives are needed during the installation process. The column cap can be quickly installed on the top of the column.

[0019] The column cap in this technology has a larger surface area, which allows for better visibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional diagram of the column cap.

[0021] Figure 2 This is a cross-sectional view of the column cap.

[0022] Figure 3 This is a status diagram of the column cap installation process.

[0023] Figure 4 This is a schematic diagram of column cap installation.

[0024] Figure 5 This is the effect after fastening with steel hoops.

[0025] In the figure:

[0026] 00 column,

[0027] 10 caps, 20 fixing cylinders, 30 inner cylinders, 40 spring clamps, 50 steel hoops. DETAILED DESCRIPTION

[0028] Embodiment 1

[0029] This type of highway column cap is made of silicone material and integrated with fluorescent material. The silicone is manufactured using an integrated injection molding process, giving the column cap a dual function - structural support and contour identification. It can not only protect the column and roadbed and beautify the guardrail, but also enhance visibility to achieve the purpose of night warning effect, providing more effective protection measures for highway traffic safety.

[0030] The first is material selection and performance analysis. Materials suitable for highway column caps are screened, and mechanical properties, durability, reflective properties and other aspects are tested and analyzed. The pile cap material adopts a subdivided hardness design, wherein the column cap includes a cap cover 10 and a fixing tube 20, wherein the hardness of the cap cover is slightly greater than the hardness of the fixing tube. Specifically, the Shore hardness of the cap cover is designed to be 50-60, and the Shore hardness of the fixing tube is designed to be 30-40, which has a certain elasticity.

[0031] The second is the research on material preparation process, exploring the best preparation process of column cap materials, including molding, curing, surface treatment and other links. The column cap is formed by batch injection molding. In the structural design, the cap 10 is designed as a mushroom head structure with an arc-shaped top surface, and the interior of the cap is designed as a hollow structure to reduce material costs. There is a downwardly extending fixed tube 20 on the lower surface of the cap. The fixed tube has a Shore hardness of between 30-40 and a wall thickness of about 1 cm. It has a sufficiently thin-walled feature, and the axial length of the fixed tube is approximately equal to the diameter of the guardrail post to be connected. Of course, when the axial length of the fixed tube is greater than the diameter of the guardrail post to be connected, it has sufficient installation reliability.

[0032] The inner cylinder 30 is arranged inside the fixed cylinder. The inner cylinder is a structure extending from the column cap. The hardness of the inner cylinder is equivalent to the material hardness of the column cap, that is, it has a Shore hardness design of 50-60. The inner cylinder 30 is connected to the inner cavity of the guardrail column to be connected by clamping. Furthermore, the plug-in end of the inner cylinder is designed as a chamfered structure, which is conducive to quick installation.

[0033] Furthermore, a spring clamp installation groove is designed inside the inner tube, and a spring clamp 40 is installed in the spring clamp installation groove. The inner tube is tightly fitted to the inner wall of the guardrail column by plugging it in, and has a certain anti-slip effect and a particularly excellent anti-rainwater soaking effect.

[0034] Furthermore, the wall thickness of the inner cylinder 30 is designed to be 2-4 cm, which has sufficient center positioning function.

[0035] The fixing tube has a curled state and an unfolded state. The fixing tube can be closely attached to the outer side of the column 00 by being quickly unfolded.

[0036] After the installation of this embodiment, the fixing tube and the cap form a seal on the top of the column, and when rainwater seeps in, the rainwater will not enter the interior of the column.

[0037] The third is the research on structure and design optimization. According to the material properties and usage requirements, we explore the integration of reflective materials into the silicone material of the column cap, optimize the structural design of the column cap, and maximize the warning and reflective functions, that is, the column cap has a reflective function.

[0038] Fourth, research on installation and maintenance technology, develop convenient and safe installation and maintenance technology, and reduce maintenance costs and risks. Specifically, the installation of this structure is very convenient. During the installation process, it can be quickly installed without the use of auxiliary tools such as screws and electric drills. The quick installation process of this structure is as follows: in the initial state, roll up the fixed tube and prepare it. Press the above-mentioned column cap from top to bottom and press the inner tube into the inner cavity of the column. After pressing it into place, unfold the fixed tube from top to bottom. The fixed tube fits on the outer surface of the column and has a longer fitting path. The first function of the fixed tube is to prevent backflow, that is, to prevent rainwater from outside from entering the column. The second function is to increase the reflective area. The fixed tube in this embodiment is a thin-walled structure and extends over the top of the column. Compared with the traditional column cap, the fixed tube in this embodiment has a larger surface area, which makes the reflective performance of the column cap more excellent.

[0039] In this embodiment, the warning and reflective functions are integrated into the column cap material, so as to achieve multiple uses of one material and improve the comprehensive effectiveness of road safety facilities.

[0040] The novel column cap material can improve the visibility of road signs, enhance the contour identification effect of the column cap, and reduce the visual fatigue and misjudgment risk of drivers.

[0041] Anti-theft function: the column cap structure in this embodiment has an anti-theft effect and is not easily stolen.

[0042] Furthermore, by using a steel hoop 50 on the outside of the fixing tube for auxiliary fixing, the installation strength of the column cap can be further improved.

[0043] The embodiments described above are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements to the present invention by relevant technical personnel in the field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. Highway guardrail column cap, the column cap is a silicone one-piece molded part, characterized in that: The column cap comprises a cap cover, a fixing tube and an inner tube, wherein the cap cover comprises a fixing tube and an inner tube extending downward and arranged coaxially, the hardness of the cap cover is greater than the hardness of the fixing tube, and the length of the fixing tube is greater than the length of the inner tube, the Shore hardness of the fixing tube is between 30-40, and the axial length of the fixing tube is greater than or equal to the diameter of the guardrail column to be connected.

2. The highway guardrail column cap according to claim 1, characterized in that: The wall thickness of the fixed tube is 1 cm, and the fixed tube has two states: curled and unfolded.

3. The highway guardrail column cap according to claim 1, characterized in that: The cap and the inner cylinder have a Shore hardness of 50-60.

4. The highway guardrail column cap according to claim 1, characterized in that: The cap has an arc-shaped top surface, and the interior of the cap is a hollow structure.

5. The highway guardrail column cap according to claim 4, characterized in that: The hollow structure is filled with concrete.

6. The highway guardrail column cap according to claim 1, characterized in that: A spring clamp ring installation groove is designed inside the inner cylinder, and a spring clamp ring is installed in the spring clamp ring installation groove.

7. The highway guardrail column cap according to claim 6, characterized in that: The wall thickness of the inner tube is designed to be 2-4 cm.

8. The highway guardrail column cap according to claim 1, characterized in that: A steel hoop is fixed on the outside of the fixing tube.

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