Patent ID: 8671722

Claim:
An automobile anti-theft device to be mounted on a steering wheel for preventing the steering wheel from being turned and from being sawed comprising: an interior rod covered with trapezoidal thread; a left hook ( 6 ) placed on a left sleeve angled at x degrees from the axis of said interior rod; a right hook ( 5 ) placed on a right sleeve also angled at x degrees from the axis of said interior rod; said value x cannot be 0 degrees but can vary in a range of −60 degrees to +60 degrees; a pin ( 12 ) placed perpendicular to said interior rod and can be pushed into said trapezoidal thread to lock said interior rod; a lock housing placed on said right sleeve such that the exposure of said trapezoidal thread is eliminated when said interior rod is pulled out fully; said lock housing further contains a set of locking/unlocking mechanism covered and sealed by a clutch lock core and a lock housing case; a drive plate located within said lock housing for driving a metal pin ( 13 ) attached on said pin ( 12 ); and said right sleeve protects said interior rod and prevents the steering wheel from turning while extended.