Quick-change connector capable of replacing drill bit on line

The quick-change connector comprises a main body, a bearing sleeve and an elastic locking mechanism, a mounting cavity is formed in one end of the main body, one end of the drill bit is connected with the mounting cavity of the main body through the bearing sleeve, and the bearing sleeve is connected with the mounting cavity through the elastic locking mechanism; the elastic locking mechanism comprises a locking sleeve, a limiting protrusion and a spring, a through limiting hole corresponding to the limiting protrusion is formed in the side wall of the mounting cavity, and the spring is arranged between the limiting hole and the limiting protrusion. The outer side wall of the bearing sleeve is provided with an arc-shaped limiting groove corresponding to the limiting protrusion, the outer side of the mounting cavity is slidably sleeved with a locking sleeve, and the two ends of the main body are provided with limiting ends corresponding to the locking sleeve respectively. The device is simple ...