Simple Automatic Lock

It is an easy and simple mechanism to lock containers. It is a cost effective one. This mechanism consists of lower and upper part in one container and mating part in another container with cylindrical shape to skip the upper part when it is pushed or pulled for locking and unlocking. PRINCIPLE OF OPERATION: The upper and lower part is connected using the helical spring, during locking up the container the upper part is pushed down by the mating part which in skips into the mating part and gets locked and while unlocking when it is pulled out by the mating part using skip surface present in the mating part. It is cost effective and saves time and easy to handle. It works in real time application with this easy locking up method.