Mobile phone data line interface fixing device

The utility model relates to the field of mobile phones. The utility model discloses a mobile phone data line interface fixing device. Protective sleeve, a first through groove is formed in the bottomof the protective sleeve; an operating panel is fixedly connected to the protective sleeve; a first opening and a second opening are formed in the operating panel; a first rack is connected into thefirst opening; a clamping part is fixedly connected to the first rack; a second rack is connected in the second opening, a spring is fixedly connected between the second rack and the operation disc, the first rack is engaged with a first gear, a second gear is engaged in the first gear, the second gear is engaged with a third gear, the third gear is engaged with the second rack, and the first gear, the second gear and the third gear are all rotationally connected in the operation disc; a fixing sleeve is connected into the protective sleeve, a second through groove is formed in the fixing sleeve, and a cover plate is c