The invention discloses an auxiliary device for a
fingerprint collector. The auxiliary device for the
fingerprint collector is installed on a wall or a door body. The auxiliary device for the
fingerprint collector comprises a cover body, a scrubbing mechanism, an infusion mechanism and a
drying mechanism, wherein the cover body is arranged on a fingerprint collecting screen in a covering mode, a division plate is arranged in the cover body, and the cover body is divided into a first cavity at the left side and a second cavity at the right side through the division plate; the scrubbing mechanism is accommodated in the first cavity and comprises a motor, a connecting rod and a scrubbing plate, an
absorbent cotton layer and a glass cloth layer are sequentially laid in the lower surface of the scrubbing plate, and an arc-shaped notch is formed in the right side face of the
absorbent cotton layer; the infusion mechanism is accommodated in the second cavity and comprises a pressing rod, a liquid storing
bottle and an output
pipe; and the
drying mechanism is arranged on the upper end face of the cover body and comprises a shell body and a fan which is accommodated in the shell body, wherein when the scrubbing plate is located at the starting point, the output
pipe is arranged oppositely to the notch, the cover body is provided with a switch, the switch is electrically connected with a controller, and the controller is electrically connected with the motor and the fan. The auxiliary device for the fingerprint collector has the beneficial effects that the fingerprint collecting screen is automatically scrubbed and dried, and the recognition ability of the fingerprint collecting screen is improved.