Electrostatic spraying device capable of improving powdering rate

The utility model belongs to the technical field of electrostatic spraying equipment, and particularly relates to an electrostatic spraying device capable of improving powdering rate, which comprises an electrostatic generator, the electrostatic generator is provided with a shell and a cover body, the shell is covered with the cover body to form a sealing structure and is used for accommodating an electrostatic generating component, and the cover body covers the shell to form a sealing space; a sealing ring is arranged on the contact surface of the cover body and the shell; the folding supporting mechanism comprises a first connecting piece and a second connecting piece which are hinged to each other, when the cover body covers the shell, the first connecting piece and the second connecting piece respectively drive the connecting sleeves on the two sides to move towards the rubber piece along the guide shafts, and the folding supporting mechanism and the two guide shafts form a coaxial structure to extrude th