Metal connecting part

• Main Author: HE BISHAN
• Format: Patent
• Language: Chinese; English
• Published: 22.03.2022
• Subjects: DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; FIXED CONSTRUCTIONS; FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES,FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS,BLINDS, GATES; LADDERS

The utility model discloses a metal connecting part which comprises a first corner brace piece, a second corner brace piece and a waterproof ring, the first corner brace piece comprises a first left corner brace piece, a first connecting bar and a first right corner brace piece which are arranged from left to right, and the second corner brace piece is arranged at the rear end of the first corner brace piece and comprises a second left corner brace piece, a second connecting bar and a second right corner brace piece which are arranged from left to right. The first corner connector and the second corner connector are connected through a waterproof ring. The first left punching arc and the second left punching arc form a circular punching hole in a mirroring mode, and the first right punching arc and the second right punching arc form a circular punching hole in a mirroring mode. The cambered surface angles of the left end and the right end of the second sealing head are equal to the cambered surface angles of