Patent attributes
A portable door lock includes a stop member and a connection plate, wherein the stop member has a slot defined therethrough and a rod is movably engaged with the slot. The stop member has two flat sides and one of which is to be contact an inside of a door. The connection plate has a hole and a tongue splits from the hole so as to be inserted in a recess in a door jamb. Two positioning holes are defined through the connection plate so that the connection plate cab be fixed to the door jamb. At least one engaging hole is defined through the connection plate so that the rod is engaged with the at least one engaging hole. A chain is connected between the stop member and the connection plate. The connection plate does not disengage from the doorjamb when the door is opened.
