| 摘要 |
<p>PURPOSE: A device for checking the opening and closing of a fuel inlet is provided to fundamentally prevent oil theft and to enable a head office to check the unnecessary opening and closing of fuel inlets on a real time basis. CONSTITUTION: A device (100) for checking the opening and closing of a fuel inlet comprises a bottom plate (110), a top plate (130), a locking device, a magnetic sensor (MS), and a circuit board. The bottom plate is equipped with a refueling cap inlet hole for inserting a refueling cap. The bottom plate is installed on the refueling container by corresponding to the outer shape of the refueling container. The top plate is hinged to the rear end of the bottom plate and is installed on the top of the bottom plate. The locking device openably connects the front ends of the bottom and top plates. The magnetic sensor is installed on the top of the bottom plate. The circuit board is installed on the bottom of the top plate with a magnet. The circuit board is connected to a head office server to enable a manager to check the opening or closing of the refueling cap.</p> |
