Door security device

A door security device comprising:

• a vertical support member having a top end and a bottom end and an angular displacement area, the top end being coupled to a door;
• a movable floor pressure member having a top location coupled to a location of the vertical support member by a hingepin, one or more hingepin holes of the movable floor pressure member, and a slidable channel of the vertical support member, where the location of coupling is defined by a first distance from the top end of the vertical support member;
• a motor mounted on the vertical support member, wherein the motor is coupled to a shaft such that the motor is able to initiate movement of the shaft;
• a lower guidepin, which rides on the angular displacement area of the vertical support member during movement of the shaft, causing the movable floor pressure member to move to an angled position with respect to the vertical support member, the angled position dictated, at least in part, by the angular displacement area;
• a switch, which when triggered at a time when the movable floor pressure member is retracted and the door security device is in an unlocked configuration, initiates an action to place the device in a locked configuration, wherein the motor pulls the shaft from a first position away from the motor to a second position closer to the motor, thus causing a lower end of the movable floor pressure member to extend and firmly engage a firm surface to put pressure on that surface with respect to the door, thus ensuring that the door cannot be opened, and further which when triggered at a time when the moveable floor pressure member is extended and the door security device is in a locked configuration, initiates a reverse action to retract the moveable floor pressure member, wherein the motor pushes the shaft from a first position close to the motor to a second position away from the motor, thus putting the door security device into an unlocked configuration and allowing the door to be opened.