Patent ID: 7071818

Claim:
A device used for protecting a car against thievery, comprising a base secured to a car; the base being formed with a locating block on a bottom portion thereof, and a locating bar secured on the bottom portion and opposing the locating block; the locating bar having a through hole; the locating block having a holding cavity facing the through hole of the locating bar; the locating block having a through hole communicating with the holding cavity; a lock block secured around a steel rope of a control of a hood of the car, which control can be used to pull the steel rope for making the hood become openable; the steel rope being passed through the through holes of the locating block and the locating bar with the lock block being arranged between the locating block and the locating bar; the lock block being formed with such a size as to be capable of moving into the holding cavity of the locating block; a stopping block arranged between the locating block and the locating bar and displaceable on the base; the stopping block having a through hole, and an horizontally extending slot communicating with the through hole and substantially as high as a center of the through hole; the stopping block being around the steel rope at the through hole and the slot thereof; the through hole being formed with such a size as to allow the lock block to pass through it; the slot being at least slightly narrower than the lock block; the stopping block being displaceable to a stopping position, in which position the slot thereof exactly faces the lock block; the stopping block being displaceable to an idle position, in which position the through hole thereof exactly faces the lock block; and an actuating member for causing displacement of the stopping block with; the actuating member including two electromagnets each having an actuating rod movably fitted thereto; the actuating rods being arranged in such a way as to point to respective ones of two ends of the stopping block; the actuating rods being connected with the corresponding ends of the stopping block so as to be capable of displacing the stopping block when they are actuated by means of controlling the actuating member; the steel rope being prevented from moving to such a position where the hood can be opened when the lock block is stopped from passing through the stopping block.