Door security system

For use in conjunction with a building structure having an opening extending upwardly from a ground surface, a security system for a door of the type pivotal about a horizontal axis between a closed position in which the door covers the opening and an open position in which the door uncovers the opening to enable access to an interior of the building structure, said security system comprising:

• a housing having a back wall, a top wall, a bottom wall and two spaced apart side walls, said top wall and bottom wall being spaced apart and substantially parallel to each other, and each side wall extending between said top wall and said bottom wall so that only a front of said housing is open,
• means for fixedly securing said back wall to the door,
• a strike plate mounted to the ground surface beneath said housing,
• said top wall, said bottom wall and said strike plate each having an aperture formed therethrough so that said apertures in said top wall, said bottom wall and said strike plate register with each other,
• an elongated rod slidably and removably positioned in said apertures in said top wall, said bottom wall and said strike plate, said rod having a traverse through bore positioned between said housing top wall, bottom wall and side walls when said rod is positioned in said strike plate, and
• means for selectively locking said rod to said housing so that a portion of said rod is entrapped within each aperture in each of said top wall, said bottom wall and said strike plate, said locking means comprising a padlock,
• whereby said padlock is accessible only through said open front of said housing.