A door lock device includes a door mount comprising a front base plate and a mounting guide coupled to the front base plate, the door mount mountable to a door; and a lock arm assembly comprising an attachment plate and a structure engagement assembly, the attachment plate defining a mounting slot, the mounting guide engaging the mounting slot to mount the lock arm assembly on the door mount, the structure engagement assembly configured to engage a structure surrounding the door to prevent the door from opening.

The emergency egress apparatus includes a protuberance mated to a first portion of the door barricade and a keeper mated to a second portion of the door barricade. A retainer is selectively disposed between one of two positions. A first position defines the placement of the retainer that establishes an interference fit between the protuberance and the keeper. A second position defines the placement of the retainer such that it is not in contact with the protuberance or the keeper. The first position secures the first portion of the door barricaded with respect to the second portion of the door barricade, and the second position decouples the first portion of the door barricade with respect to the second portion of the door barricade.

A safety device for infant protection includes a body having circular holes on both sides and a bent part in the center thereof to be bent at different angles, which is provided with a reinforcing wall formed with a predetermined height around the entire periphery thereof. Two knobs, each having a flat bottom surface and a screw rod composed of an idle part and a male screw at a predetermined length and projected from the center portion. An outer diameter of the screw rod is larger than a diameter of the circular hole while a diameter of the idle part is smaller than the diameter of the circular hole, whereby the knob can freely rotate without escaping and being disassembled from the circular hole when the idle part of the screw rod is inserted into the circular hole.

Receptacle locking devices are disclosed. A receptacle locking device having a contact arm and a pivoting feature can be pivoted from a first, unlocked position to a second, locked position, wherein the contact arm prevents opening of the receptacle door when the locking device is in the second, locked position.

A stop to barricade a door from forced entry is disclosed. The stop includes an upper portion designed to contact the door to barricade it against forced entry, and a lower portion that fits within a receptacle that is recessed into the floor. The stop can be removed from the receptacle when the user doesn't desire to barricade the door. When the stop is placed in the receptacle, the stop is preferably configurable by the user in two modes: a first that allows the user to slightly open the door by a gap, and a second that barricades the door when it is shut. Barricading the door in this second mode is beneficial because it allows the user to look through the gap to verify the identity of a person on the outside of the door, and/or to receive an item through the gap while not opening the door completely.

A security device can be provided to selectively restrict or prevent the opening of a sliding door, sliding window, or other sliding panel or other closure. For example, the security device can include a base plate that selectively engages a barricade member (or lock rail). While the barricade member is engaged with the base plate (in a locked state), the barricade member and base plate cooperate to restrict or prevent the sliding door, window, panel or other closure from moving to an open position (or moving out of a closed position). The barricade member can be moved relative to the base plate (to an unlocked state) to allow unrestricted movement of the sliding door, window, panel or other closure. The security device can include stop members that may restrict or prevent complete removal of the barricade member from the base plate.

A door security system is provided which is used to prevent a door, which separates first and second spaces, from opening. The door security system includes a security apparatus which is configured to be engaged with the floor within a first space. If the door is to be opened into the first space, the security apparatus blocks the door from opening into the first space. If the door is to be opened into the second space, an attachment assembly of the door security system acts in concert with the attachment assembly to block the door from opening into the second space. The door security system further includes a release mechanism which can be manipulated from the second space to disengage the security apparatus within the first space, thereby allowing for the door to be opened into either the first or second spaces, as appropriate.

An emergency door lock system and method is provided for securing a door during an emergency situation. The emergency door lock system or barricade includes a portable removable lock pin, an interior door bracket, an exterior door bracket, and a set of u-shaped clamp brackets. The clamp brackets provide support to the interior bracket and the exterior bracket and a set of threaded screws through the clamp brackets provide pressure to the lock system to securely attach it to a door. The removable lock pin enters through a pin slot in the interior bracket and then engages into a remote pin slot in a floor or a wall. The lock pin engages the interior bracket and the remote pin slot to provide a secure robust lock or barricade with the door. The emergency door lock system is dissassembleable for removal for emergency access. An optional alarm system may be included.

A door lock has a bottom surface, a bottom surface, a wedge portion extending upward from the bottom surface, and a projection member secured to the bottom surface. The projection member has a plurality of spikes defined therein that extend from a first side of the projection member in a direction away from the bottom surface.

A locking device intended to prevent opening of a door/doors includes a body (2), which is capable of being coupled immovably to a door handle and prevents opening of a door/doors. The body is provided with a coupling arrangement adjustable with adjustment elements for locking the handle against an external surface of the door by being propped immovably on a vertical frame member of the door or on a handle of the adjacent door.