| 摘要 |
<p>The present invention relates to a key- changeable lock including a lock housing (9), a lock cylinder (2} set in the lock housing (9). The lock cylinder (2) includes a lock cylinder shell (12), a key insertion hole (11) and a lock block (1) mounted on the lock cylinder shell (12). A big sliding block (6) and a tooth piece (3) are provided in the lock shell (12). The lock block (1) sustains against the big sliding block (6) with a sliding tooth block (4). The lock block (1) has two working positions, in one of which the Lock block (1) disengages from a groove (15) of the lock mock and the teeth of the tooth piece (3} engage with the teeth of the sliding tooth block (4); in the other the lock block (1) is inserted in the groove (15) of the lock block and the teeth of the tooth piece (3) disengage from the teeth of the sliding tooth block (4). The lock can change its key as different keys can change the engaging of the teeth set in the lock cylinder.</p> |
