High security locking assembly for above-ground fiber optic/cable network enclosures

A high security locking enclosure containing a communications network's terminal connections for communication services supplied to a service subscriber, the enclosure comprising:

• a hinged cover having locking pin holes;
• and
• a structure having opposite side walls each having a locking pin hole engaged by a locking assembly which comprises:
• an elongated slide bar having a series of axially spaced apart locking holes on an upper surface thereof,
• a first end plate on an end of the slide bar,
• at least one first locking pin on an inside face of the first end plate,
• an elongated rigid base plate having an upper surface positioned below the slide bar,
• a second end plate on an end of the base plate,
• at least one second locking pin secured to an inside face of the second end plate, the first and second locking pins facing toward one another, the first and second locking pins engage the locking pin holes in the side walls of the enclosure and the hinged cover,
• the slide bar slidable axially along the axis of the base plate to widen or shorten the distance between the first and second end plates, and
• an elongated support structure rigidly affixed to the base plate and spaced above the upper surface of the base plate to form a channel therewith for receiving sliding axial travel of the slide bar in the channel,
• the support structure having a captive locking bolt adapted to engage a selected one of the locking holes in the slide bar for holding the slide bar in a fixed locking position in the channel relative to the base plate, with the spacing between the locking pins controlled by the selected locking hole engaged by the captive locking bolt,
• wherein the support structure includes a recessed boss for containing the captive locking bolt, and a threaded insert rigidly affixed to a bottom of the boss, the captive locking bolt comprising a threaded shaft that screws into the threaded insert for maintaining the captive locking bolt in a selected one of the locking holes.

An multiple dwelling unit wall box and high security locking assembly, comprising:

• a multiple dwelling unit wall box having a chassis frame containing terminal connections for network communication services for a service subscriber, and a hinged cover on the chassis frame, the chassis frame comprising a structure having opposite side walls engaged by the locking assembly in a closed position;
• and
• a locking assembly for locking the hinged cover to a front side of the chassis frame,
• wherein the locking assembly comprises:
• an elongated slide bar having a series of axially spaced apart locking holes on an upper surface thereof,
• a first end plate on an end of the slide bar,
• at least one first locking pin secured to an inside face of the first end plate,
• an elongated base plate having an upper surface positioned below the slide bar,
• a second end plate on an end of the base plate,
• at least one second locking pin secured to an inside face of the second end plate, the first and second locking pins facing toward one another, wherein the first and second locking pins engage corresponding aligned locking pin holes in the side walls of the chassis frame and the hinged cover,
• the slide bar slidable axially along the axis of the base plate to widen or shorten the distance between the first and second end plates, and
• an elongated support structure rigidly affixed to the base plate and spaced above the upper surface of the base plate to form a channel therewith for receiving sliding axial travel of the slide bar in the channel,
• the support structure having a captive locking bolt adapted to engage a selected one of the locking holes in the slide bar for holding the slide bar in a fixed locking position in the channel relative to the base plate, with the spacing between the locking pins controlled by the selected locking hole engaged by the captive locking bolt,
• wherein the support structure includes a recessed boss for containing the captive locking bolt, and a threaded insert rigidly affixed to a bottom of the boss, the captive locking bolt comprising a threaded shaft that screws into the threaded insert for maintaining the captive locking bolt in a selected one of the locking holes.