Lens cap prevents losing magnetic button

The utility model discloses a lens cap prevents losing magnetic button. This lens cap prevents losing magnetic button detains the main part including preventing losing, plays spring clamping, magnet groove magnet and magnet for the lens cap. Prevent losing the back of detaining the main part and be provided with the magnet groove, prevent losing the front of detaining the main part and be providedwith the outstanding rampart of the end face of radial direction, form and prevent losing knot main part recess, magnet groove magnet is placed at the magnet inslot, plays spring clamping and connects at the back of preventing losing the knot main part, plays the spring clamping inboard and sets up the cusp decorative pattern, and bullet spring clamping centre gripping is on backpack strip or camera area, and magnet glues at lens cap openly for the lens cap, magnet groove magnet and for the lens cap magnet contain two magnet pieces respectively. The utility model discloses a lens cap preventslosing magnetic button ca