| 摘要 |
PURPOSE: A storage tank device of a tank lorry is provided to improve safety by being operated through automatic control using pneumatic pressure. CONSTITUTION: A storage tank device of a tank lorry comprises a storage tank(2) and a valve(4). The storage tank comprises an oil supply port(22). The valve is installed in the storage tank and opens and closes the oil supply port. The valve comprises a main body, a piston, a rod, a valve disc, and a sealing member. The main body is coupled with a cover. The main body comprises first and second injection ports. The first and the second injection ports are connected to an air supply hose. The piston is inserted into the main body and lifted by pneumatic pressure. The valve disc is coupled with the rod and opens and closes the oil supply port. The sealing member is coupled with the outer portion of the rod.
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