DISC LOCKING DEVICE

A disc locking device, comprising: a base (2), a brake clamping block (7), a support mechanism, a front baffle (3), a limiting cover plate (1), a needle roller slide plate (13) and a brake triggering mechanism (10), and so on. The base (2) includes a bottom plate (21) and two side vertical plates (22) which are integrally arranged on the bottom plate (21); the two side vertical plates (22) are oppositely arranged, and the inner walls thereof are all lateral slope surfaces, so that a wedge-shaped groove having a large front opening and a small rear opening is formed between the two laterally-vertical plates; and mounting holes penetratingly connected to the brake triggering mechanism (10) are formed on the side vertical plates (22). The support mechanism includes a front support mechanism and a rear support mechanism. Flexible movement and reliable braking of the brake clamping block and eccentric blocking of a brake disc are achieved, thus deformation of the device is eliminated, and erroneous braking caused by the eccentric rotation of the brake disc is avoided, thereby greatly improving the reliability of the device, meeting standard requirements, truly achieving productization and making it possible to apply and popularize the safety brake.