ARC-SHAPED LOCK AND LED DISPLAY SCREEN HAVING SAME

摘要

An arc-shaped lock (200) and an LED display screen having same. The arc-shaped lock (200) comprises a first base (210), a second base (220), and an angle adjustment locking assembly (230). The angle adjustment locking assembly (230) comprises a rotation locking mechanism (231) and a multi-connecting rod mechanism (232). The rotation locking mechanism (231) comprises a support member (2311) and an adjustment control (2312). The support member (2311) comprises a support bottom plate (212) connected to the second base (230). The multi- connecting rod mechanism (232) also comprises a first long connecting rod frame (2321), a second long connecting rod frame (2322), a first short connecting rod frame (2323), and a second short connecting rod frame (2324). The first long connecting rod frame (2321) and the second long connecting rod frame (2322) are rotatably provided alternately. A first side of an oblique plane and a second side of the support bottom plate (212) are sequentially connected to the first long connecting rod frame (2321) and the first short connecting rod frame (2323). A first side of the support bottom plate (212) and a second side of the oblique plane are sequentially connected to the second long connecting rod frame (2322) and the second short connecting rod frame (2324), and the connections are rotatable connections. The arc-shaped lock has high angle adjustment precision and is simple to use.