Associated quick-release buckle device and bulletproof quick-release vest

An associated quick-release buckle device, comprising:

• a first connection buckle (10), comprising a first male buckle (101) and a first female buckle (102) that can be locked and separated from each other;
• a second connection buckle (20), comprising a second male buckle (201) and a second female buckle (202) that can be locked and separated from each other;
• a quick-release buckle (30), provided with an unlocking operation member (31) that can be operated for unlocking;
• a first drawstring (40), connected between the first connection buckle (10) and the quick-release buckle (30);
• and
• a second drawstring (50), connected between the second connection buckle (20) and the quick-release buckle (30), wherein
• when the unlocking operation member (31) is operated, the first connection buckle (10) and the second connection buckle (20) can be associated for unlocking in sequence, so that the first male buckle (101) and the first female buckle (102) are separated from each other and then the second male buckle (201) and the second female buckle (202) are separated from each other;
• the unlocking operation member (31) can rotate around a fixed rotation center, a first guide surface (315) and a second guide surface (316) are provided on the unlocking operation member (31), and guiding distances of the first guide surface (315) and the second guide surface (316) are different;
• the first drawstring (40) has one end connected with the unlocking operation member (31), and has another end protruding from the quick-release buckle (30) along the first guide surface (315) to be connected with the first connection buckle (10);
• the second drawstring (50) has one end connected with the unlocking operation member (31), and has another end protruding from the quick-release buckle along the second guide surface (316) to be connected with the second connection buckle (20);
• and
• when the unlocking operation member (31) is operated to rotate around the rotation center, movement distances of the first drawstring (40) and the second drawstring (50) are different under guide of the first guide surface (315) and the second guide surface (316), and the first connection buckle (10) and the second connection buckle (20) can be associated for unlocking in sequence.