The utility model relates to the technical field of
oil tank theft prevention, in particular to an anti-theft engine unit
oil tank which comprises a tank body, an anti-theft base is fixedly connected to the tank body, a sealing rotary disc is rotatably connected to the bottom of the anti-theft base, and an oil passing
pipe and an anti-theft
pipe are fixedly connected to the interior of the sealing rotary disc. A
processing device is arranged on the anti-theft
pipe, and an anti-theft switching device is arranged in the anti-theft base. The positions of the oil passing pipe and the anti-theft pipe are switched through the anti-theft switching device, the effect of switching the normal oil inlet state and the anti-theft state of the
oil tank is achieved, when a thief opens an oil cover to steal oil, due to the fact that no oil exists in the anti-theft pipe, the thief cannot steal oil in the oil tank, and then the anti-theft effect is achieved; the anti-theft switching device is controlled by the
processing device to clamp the oil stealing pipe in the stealing process, so that a thief is prevented from continuing the subsequent stealing work, and the double anti-theft effect is achieved.