| 摘要 |
The invention relates to a ciphered locking device with a special key, comprising a movable part having some holes which allow the locking elements comprising pairs of pistons and springs to glide therethrough, and a stationary part comprising the bushings (2, 3) fastened to each other by means of screws (11) driven in the threaded holes (n), a shaft (1) representing the movable part of the device being provided with the bushings (2, 3), said shaft having longitudinal holes (g) in correspondence with some holes (h) drilled in the bushing (2), which allow the pistons (4, 5) seated on the springs (6) to glide therein, said shaft (1) being secured to the stationary bushings (2, 3) by means of a washer (7) and a lock (8) mounted on an end (b) of the shaft.
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