1 . A kind of anti-pollen glasses, characterized in comprising: a glass frame and a protection cover, lenses being provided in the glass frame, both ends of the glass frame being connected with glass legs, the protection cover being detachably assembled at an outer side of the glass frame and having an accommodation groove adapting to the glass frame, a side wall of the accommodation groove enclosing the whole glass frame and forming a protection ring surface, the protection cover being provided with relief windows corresponding to positions of the lenses, side walls of the relief windows being used as a limiting frame for preventing the glass frame from moving outside, a flange protruding from inside of the protection ring surface, a mounting groove being formed between the flange and the limiting frame, and an edge of the glass frame capable of being placed in the mounting groove.
2 . The anti-pollen glasses of claim 1 , which is characterized in that: the flange comprises a first flange, a second flange and a third flange, the first flange extends from an upper left end of the inner wall of the protection ring surface to an upper right end after passing through a position corresponding to a center beam of the glass frame, the second flange extends from a left side of the inner wall of the protection ring surface to a bottom of the inner wall, and the third flange extends from a right side of the inner wall of the protection ring surface to the bottom of the inner wall.
3 . The anti-pollen glasses of claim 1 , which is characterized in that: a side of the flange near to a wearer's face is disposed as an inclined surface and smoothly transits to the protection ring surface.
4 . The anti-pollen glasses of claim 1 , which is characterized in that: a width of at least partial edge of a side of the protection ring surface near to the wearer's face is extended to form a side guard.
5 . The anti-pollen glasses of claim 1 , which is characterized in that: the protection cover has a front end surface integrally connected with the protection ring surface, and the relief windows are disposed on the front end surface.
6 . The anti-pollen glasses of claim 1 , which is characterized in that: both ends of the protection cover are provided with detachable connection members, the connection members are provided with groove holes, and the groove holes are used to fix a lanyard.
7 . The anti-pollen glasses of claim 6 , which is characterized in that: The both ends of the protection cover are provided with insertion holes, an insertion hole has an elastic abutting part connected to a front side wall of the insertion hole, an inner side of the connection member is provided with a hook part, the hook part is inserted into the insertion hole and hooks a rear side wall of the insertion hole, and the elastic abutting part abuts against a front end of the hook part to prevent the hook part from coming out of the insertion hole.
