LOCK-LATCH Russian patent published in 2012 - IPC F16B5/06 F16L59/12 

FIELD: construction.

SUBSTANCE: lock-latch comprises four identical hooks. Each hook is arranged in the form of an extended plate bent in two by 90° along a transverse line of the bend. On each transverse side of the plate and symmetrically relative to the bending line there is a triangular ledge, the lower edge of each ledge is arranged at the distance from the bending line, which is more than the distance between the upper edge of the ledge and the bending line. The grip comprises an attachment and a spring in the form of an open wire ring with end sections closing each other. The attachment is arranged in the form of an axisymmetric part with a flange, four external pairwise perpendicular ribs and with a cross-shaped slot for arrangement of hooks in it that are fixed in a corner appropriate for each one between side walls of detachable heat insulation panels (DHIP), fixed to each other by an appropriate latch lock. In each rib of the attachment perpendicularly to a beam slot of the cross-shaped slot corresponding to it there is a longitudinal slot. Slots are arranged as identical and with width providing for arrangement of a wire ring in slots with the possibility for the wire ring to change its diameter in the range determined by the length of slots whenever the latch lock is locked and opened.

EFFECT: reduction of time spent for assembly and disassembly of DHIP.

2 cl, 7 dwg