CLEANING DEVICE FOR HEADLIGHT OF VEHICLE

摘要

A cleaning device for a headlight of vehicle is provided with a casing cylinder body (5), a movable sealing valve matched with the inner wall of the casing cylinder body (5) and a compression spring (7). Both ends of the compression spring (7) are fixed to the upper end of the casing cylinder body (5) and the spring-fixing seat (10) of the movable sealing valve respectively. When cleaning liquid flows into the interior of the cleaning device from the inlet (13-1) on a casing base (13), the pressure of the cleaning liquid overcomes the elastic force of the compression spring (7), so as to push a driven guiding rod (8), the movable sealing valve and a nozzle (1) to move together. After moving to the limiting position, the driven guiding rod (8) stops. When the pressure of the cleaning liquid continues to increase, the movable sealing valve is opened under the action of the increasing pressure of the cleaning liquid, and the cleaning liquid is discharged from the driven guiding rod (8) and the nozzle (1) so as to form an integral cleaning channel. After cleaning is over, the pressure of the cleaning liquid disappears, the movable sealing valve is closed under the action of the compression spring (7), and the driven guiding rod (8) is retracted to the initial position in the casing cylinder body (5), so the whole cleaning process is finished.