Seat bracket and zero-wall-gap seat with seat bracket

A seat bracket, comprising:

• a base;
• a linkage mechanism comprising a bracket side plate and a linkage assembly, wherein the linkage assembly is hinged with the base and the bracket side plate is hinged on the linkage assembly;
• and
• a backrest mechanism comprising a backrest mounting plate, a backrest pivoting assembly and a limiting plate, wherein the backrest pivoting assembly comprises a first front backrest connecting rod, a second front backrest connecting rod and a rear backrest connecting rod;
• a lower end of the first front backrest connecting rod is hinged with the bracket side plate;
• an upper end of the first front backrest connecting rod is hinged with a lower end of the second front backrest connecting rod;
• an upper end of the second front backrest connecting rod is hinged with a front end of the backrest mounting plate;
• a lower end of the rear backrest connecting rod is hinged with the linkage assembly;
• and an upper end of the rear backrest connecting rod is hinged with a rear end of the backrest mounting plate;
• wherein the backrest mounting plate has a reclined position tilted backwards relative to the base and a reset position reset relative to the
• base;
• and the limiting plate is capable of forming a four-connecting rod mechanism with the backrest pivoting assembly and/or the bracket side plate to limit a motion range of the backrest mounting plate between the reclined position and the reset position.