BOLTLESS LOCKING DEVICE Russian patent published in 2016 - IPC F16L5/00 

FIELD: construction.

SUBSTANCE: invention relates to boltless locking devices. A boltless locking device is designed for the reliable fixation of a bushing (1) to a fixed part (2) of a structure. The bushing (1) has the central axis (C) and is located substantially perpendicularly to the plane of the specified part (2) of the structure, when these parts are assembled together. The device comprises two working surfaces (A, B), which stretch, if looked at from the central axis (C), substantially in the radial direction and are formed on the outer surface (1a) of the bushing (1), and at least one circular plate element (3), formed from separate segments (3a, 3b). At least one circular plate element (3) includes a radially close, but outer part (3c) for interaction or engagement with the appropriate surface, of at least one of the two working surfaces (A, B), and with its radially remote, but inner part (3d) at the opposite side it adjoins the fixed part (2) of the structure.

EFFECT: improved design.

6 cl, 5 dwg