Patent ID: 11953717
Assignee: HKC CORPORATION LIMITED
Field: Optics (Instruments)
Classification: CPC G  H  Y | IPC F  H

Claim 5:
6. The backplane assembly according to claim 1, wherein the locking assembly comprises:
a fixing post fixedly installed on the bottom backplane; and
a sleeve; wherein the sleeve comprises a cylinder body and a limiting block, and the cylinder body is rotatably sleeved outside the fixing post; the limiting block is protruded on an outer side wall of the cylinder body;
wherein the upper frame is provided with a limiting cavity, and a limiting plate is provided on a side of the limiting cavity close to the bottom backplane; the limiting block abuts against a side of the limiting plate away from the bottom backplane, and the limiting plate is provided with a piercing opening and an avoidance opening communicating with each other; the cylinder body is passed through the piercing opening; the avoidance opening is configured for fully exposing the limiting block when the sleeve is rotated to the second position.