Mobile phone protective sleeve with novel waterproof structure

A mobile phone protective sleeve with a novel waterproof structure, comprising a lower cover (1), an upper cover (2) hermetically arranged on the top of the lower cover and a screen protection sheet (3) hermetically connected to the upper cover, characterized in that the lower cover (1) comprises a base plate (4) and a lower cover mounting sleeve (5), a sealing groove is formed in the inner wall of the lower cover mounting sleeve (5) circumferentially, the base plate (4) is arranged at the middle part of the lower cover mounting sleeve (5), the peripheral side of the base plate (4) is embedded into the sealing groove, the upper cover (2) comprises an internal part hard rubber frame (6), an external part hard rubber frame (7) and a soft rubber frame (8) arranged on the outer side of the external part hard rubber frame (7) in a sleeving mode, the internal part hard rubber frame (6) is matched with the external part hard rubber frame (7), a mounting groove is formed in the top of the lower cover mounting sleeve (5) circumferentially, the mounting groove extends outwards to form first sealing surfaces (9), the bottom of the internal part hard rubber frame (6) extends outwards to form second sealing surfaces (10) matched with the first sealing surfaces (9), and the first sealing surfaces (9) and the second sealing surfaces (10) form the waterproof structure.