Container transportation is the safest carrier for modern cargo transportation, and safety is the "lifeline" for container transportation. The box carrying more than ten tons of heavy cargo, once slipped or rolled over from the car body, will bring immeasurable loss to personal life and property safety. Therefore, the container and the vehicle body must be connected and fixed by special locks. According to the relevant provisions of the Regulations on the Administration of Road Freight and Stations of the Ministry of Communications of the People's Republic of China (No. 6 of 2005) and the Rules for the Transport of Container Vehicles (No. 1283 of 1995), requirements for vehicles engaged in container transportation are required. A turn lock device with a fixed container.
There are many ways to connect the container to the lock and the body. Some of them are welded directly to the vehicle body. The lock can only be rotated and cannot be moved longitudinally. This type is called fixed type; some of the locks are fixedly connected to the body through the bracket, and the lock is locked. The head can not only rotate but also longitudinally expand and contract. When not in use, the lock can be lowered below the bearing surface to suit different standard box types. This type is called lift type; and some rotary locks are hinged on the vehicle body or made. It can be moved, so that the fastening position can be adjusted, which greatly improves the utilization of the vehicle. In addition, there is a plug-in rotary lock, the lock shaft extends into the fixed part of the box like a bolt, generally with other types of rotary locks. With the use of.
When the container is hoisted to the vehicle carrying surface, the corner hole of the bottom of the container just falls on the position where the rotary lock is installed. By rotating the handle of the rotary lock, the lock will be fixed at a predetermined corner position (usually 90 degrees or 70). Degree), the lock is locked. For the lift type lock, the handle is pushed longitudinally to lift the lock head, extend into the inner cavity of the bottom corner of the container, and then rotate to a predetermined angle to lock the container angle. Some rotary locks have a tightening device. By tightening, the lock head can be pressed down to the bottom surface of the inner cavity of the corner piece to prevent the corner of the box from being lifted, thus ensuring that the locking is safer and more reliable.
With the continuous improvement of modern manufacturing processes, the manufacturing process of container rotation locks has become more and more standardized. The company strictly controls key aspects such as raw material procurement, production management and product testing to ensure product quality. The main features of the product are: convenient and flexible operation, high safety and reliability, and long service life. After surface treatment, the surface of the part has high corrosion resistance, damp heat resistance and salt atomization resistance, which can meet the conditions of use in coastal areas and hot and humid climates. In addition to looking at the appearance, the product should pay more attention to the internal quality. The internal quality control of the lock is extremely strict. The physical and chemical properties of the parts and materials must meet the relevant standards, and the lock shaft must pass the strict tensile test requirements.
In recent years, container truck slipping accidents have occurred, and some even caused casualties. Mostly because some drivers save trouble, there is no handle on the lock, and the lock lock is ineffective. Authoritative departments have conducted investigations. Under the same circumstances, the locked containers are only 0.01%; if they are not locked, the container “boxes†are as high as 95%-98%.
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