cement column
The base material of the early columns was cement prefabricated parts, which was cheap, but it had two major disadvantages: (a) when vehicles collided, it caused great secondary damage to vehicles; (b) The color is not obvious, and the reflector is not easy to stick to the cement surface.
steel plate
The column is made of steel plate, and the surface is galvanized and painted. In this case, the reflector can be easily connected to the surface of the column, but it has three disadvantages: high cost, serious secondary injury and easy to rust.
The industry standard JT/T- 1999 published by the Ministry of Communications clearly points out that the column delineator column should be made of synthetic resin. Synthetic resin materials include polyethylene, glass fiber reinforced plastic, polycarbonate resin, PVC resin, etc.
Hand-made FRP materials
In some places, hand-made glass fiber reinforced plastic is used as the base material of the column, which can better solve the problem of secondary injury. Due to the process limitation of hand-made FRP, each product is made by different people, which is very unstable, uneven in thickness, unstable in formula, different in weight and unstable in strength.
PVC engineering plastics
PVC engineering plastic substrate is formed by mechanical mold, with stable formula, uniform wall thickness, smooth surface, no aging and no secondary damage. The production speed is fast and the cost is low.
Elastic cylindrical profiler
The elastic material is applied to the columnar delineator to solve the problem of breakage and damage of the columnar delineator. The base material of the elastic warning column adopts engineering plastics with high elasticity and weather resistance.
There are mainly two different structures of the column. (1) One is a small semi-warped monolithic arc plate column delineator, which can generally withstand external impact from one direction. (2) It is a cylindrical delineator. Cylinders can withstand 360-degree impacts from different directions. Therefore, its scope of application is also different. The edge of the road adopts arc-shaped plate columns. Cylinders are mostly used in the middle of roads to isolate motor vehicles from motor vehicles. Attached delineator is attached to the guardrail and consists of reflective materials, brackets and connectors. The reflective material is trapezoidal and fixed in the guardrail and the connecting bolt through the bracket. After installation, the retro-reflective surface is perpendicular to the road centerline.
Characteristics (1), diversity, (2), damage resistance of delineator.
Diversity means that products and protected objects are more and more harmonious. For example, there are trapezoidal delineator attached to the center of the beam and ∮ 100 delineator attached above the beam, and their connection with the beam uses screws on the beam. No additional drilling is required. And a rectangular delineator attached to a guardrail in New Jersey. More harmonious.
Damage resistance refers to the use of elastic materials as the base material. When the reflector is impacted, the bracket will deform, and when the external force disappears, the bracket will return to its original position. In order to achieve the purpose of protection. Prevent people from curious destruction. Outline characteristics of LED
First, the luminous brightness is high. The reflective brightness of ordinary delineator is only 300-400 MCDs, while the luminous brightness of LED delineator can reach more than 5000 MCDs, which is more than 10 times of the former. This high-intensity light can break through rain and fog at night and guide drivers safely and effectively.
The second is: active lighting and dynamic early warning. LED delineator flashes at a certain frequency at night, and human vision is more sensitive to changes, so its dynamic early warning function is very strong. Active LED delineator can avoid the interference of rain and fog to the greatest extent.
Characteristics of attached solar profiler
1. The light-emitting device adopts LED with strong fog permeability, which can be installed on foggy days and mountain roads to make the road outline more obvious in foggy days or at night;
2. Adopt high-temperature components, which are suitable for areas with high temperature, and adopt large-capacity energy storage devices, which can be used in areas with bad climate;
3. The shell is molded by the mold at one time, and all parts are sealed in the shell, which has strong waterproof ability and can be used on the guardrail as long as it is irradiated by sunlight;
4. The fixing hole is oval and can be directly hung on the steel guardrail, which is very simple and convenient.
5. Compared with the solar spike, the solar energy attached to delineator is not impacted and has a longer service life.
Cylindrical solar profiler
Use solar column profilometer where there is no guardrail.
Tunnel photoelectric plotter
Highway tunnel is a closed space with limited traffic space and difficult air circulation. Delineator, which relies on reflection, will soon lose its reflection effect due to air pollution in the tunnel. The tunnel photoelectric delineator can clearly outline the road outline.
The flashing mode of tunnel photoelectric profiler is always on on the straight section, which makes the driver feel most comfortable and the project is the simplest and most reliable.
Features:
1. Effective control radius of control system >: 5000m.
2. All profilers can be turned on all the time or flash synchronously.
3. The profilometer adopts the combination of active luminescence and passive luminescence, and the induction effect is better.
4. Electronic components and LED are sealed in the shell, which is extremely waterproof.