Quick-detachable built-in glasses

The invention discloses quick-detachable built-in glasses, which comprise a lens frame provided with built-in lenses, the left side and the right side of the lens frame are each provided with a locking mechanism used for being matched with a clamping pin on a helmet, and the middle of the upper side of the lens frame is provided with a hanging pin used for being matched with a clamping groove in the helmet; the locking mechanism comprises a locking base, an upper locking block, a lower locking block and a spring, the upper locking block and the lower locking block are located on the upper sideand the lower side of the locking base respectively and can slide up and down along the locking base, the spring always applies force away from each other to the upper locking block and the lower locking block, and kidney-shaped holes in the vertical direction are formed in the staggered positions of the upper locking block and the lower locking block; the middle of a clamping pin is provided with an annular groove, a ha