| 摘要 |
The lock is for the breech of a rifle, with a lever. With this the breech can be moved forwards and backwards and unlocked by being turned. The breech has a shoulder for locking on the mounting. A guide tube forms the outside of the breech and rotates relative to it. It is prevented from turning relative to the mounting. The inner shape of the mounting matches that of the transverse section of the guide tube, which is triangular. |
