Mobile phone screen magnifying frame

The utility model discloses a mobile phone screen amplifying frame. Belonging to the field of physical applications, the objective of the utility model is to solve the problem that a conventional mobile phone screen amplifier cannot adjust the distance between a mobile phone screen and a Fresnel lens. Therefore, the mobile phones with different screen sizes can be amplified; the problem of blurring of the edge area of the screen is solved; the device comprises a mainboard assembly, a heat dissipation plate assembly, a sliding plate, a Fresnel lens and a supporting plate assembly. The sliding plate is arranged on the main plate assembly. The sliding plate is in sliding connection with the mainboard assembly; the heat dissipation plate assembly is arranged on the sliding plate; the heat dissipation plate assembly is hinged to the sliding plate. The Fresnel lens is inserted into the main board assembly; the Fresnel lens is connected with the mainboard assembly in a sliding mode, the supporting plate assembly is