Trailer hitch lock

A trailer hitch lock comprising:

• a lower, substantially rectangularly shaped metal plate having a lower inner surface;
• an upper, substantially rectangularly shaped metal plate having an upper inner surface;
• each of said lower and upper plates having a rear end and a forward end;
• hinge means carried by said plates adjacent the rear ends thereof whereby said plates are hinged together and are pivotally moveable with respect to each other between an open inoperative position and a closed operative position wherein said plates are spaced apart but substantially parallel to each other;
• a metal pin secured to and extending away from one of said inner surfaces, said metal pin having a height which is substantially equal to the distance between said plates when the plates are in their closed operative position;
• an upper locking flange secured to said upper inner surface adjacent the forward end of said upper plate and a lower locking flange secured to said lower inner surface adjacent the forward end of said lower plate, said locking flanges being positioned substantially next to each other when said plates are in their closed operative position;
• each of said locking flanges having a transverse opening therein, said openings being in alignment with each other when said plates are in their closed operative position, and
• a pair of metal guards secured to one of said inner surfaces and extending toward said other inner surface, said metal guards being spaced from each other and being located adjacent said forward end of said plates and on either side of said locking flanges.