Button type switch internally provided with waterproof structure

The utility model relates to the technical field of button switches, and discloses a button type switch with a waterproof structure inside, which comprises a cylindrical base and a rubber waterproof ring, a button assembly is slidably arranged in the cylindrical base, a first waterproof ring groove is concentrically arranged on the outer side of the rubber waterproof ring, and a second waterproof ring groove is arranged on the inner side of the rubber waterproof ring; the outer side of the rubber waterproof ring is arranged on the upper end face of the cylindrical base in a pressed mode through a pressing ring, a first ring table matched with the first waterproof ring groove is arranged on the pressing ring, and a first receding ring groove matched with the first waterproof ring groove is formed in the cylindrical base. The inner side of the rubber waterproof ring is arranged at the top end of the button assembly in a pressed mode through a pressing cap, a second receding ring groove matched with the second w