Dichroic mirror with lens capable of being replaced quickly

The utility model discloses a dichroic mirror capable of quickly replacing lenses, which relates to the field of lens replacement and comprises a nose frame, the nose frame is rotatably connected with a nose pad through a straight shaft, and the end part of a connecting frame is rotatably connected with an ear frame through a straight shaft; the glasses frame structure is composed of an upper glasses frame and a lower glasses frame. According to the utility model, through the arrangement of the connecting structure, by pulling the upper glasses frame and the lower glasses frame, the upper glasses frame and the lower glasses frame generate relative displacement, and the upper glasses frame and the lower glasses frame displace, so that the sliding blocks slide in the accommodating grooves to extrude the springs, the springs deform, and the lenses of which the end parts are in butt joint originally are separated; the lenses extrude the elastic parts (the elastic parts can be made of rubber), the elastic parts de