Two way swinging door opening gap control device for controlling movement of companion animal

A two way swinging door opening gap control device for controlling an opening gap between a door and a door frame to thus prevent companion animals of given sizes or more from entering through the opening gap, the device comprising:

• a gap control band whose one end is located on the door and length is adjustable;
• a locking pin module located on the other end of the gap control band and having a handle having a band fastening portion formed on one end thereof, a locking piece protruding from a central portion of the handle in a height direction of the handle and having a smaller size than a height of the handle, and upper and lower pins extended in a vertical direction from the locking piece in such a manner as to be integrally connected to each other;
• and
• a locking holder module located on the door frame and having upper and lower holders adapted to restrict the upper and lower pins of the locking pin module thereto,
• wherein the locking holder module comprises:
• a fixed plate-mounted on the door frame;
• the upper and lower holders protruding from the fixed plate in such a manner as to be spaced apart from each other;
• the lower holder has a circular lower pin hole to restrict the lower pin thereto;
• the upper holder has a circular upper pin hole and has a slot, wherein the circular upper pin hole and the slot are integrally connected to restrict movement of the upper pin to the upper holder in a transverse direction thereof and to permit a longitudinal movement of the locking piece;
• and
• a locking groove formed between the upper and lower holders and configured to restrict the locking piece thereto.