Aluminum alloy refueling gun

Aluminum alloy refueling gun.The refueling gun is the terminal output of the refueling machine in the gas station, that is, the part that the oil tank of the automobile.Commonly used are self-sealing refueling gun and compound refueling gun.The appearance of ordinary refueling gun is mainly composed of refueling gun body, guard, limit plate, switch handle, baffle and control lever.A limit plate is fixed on the refueling gun guard, and there are three gears on the limit plate.When the switch is turned on, the baffle can be tilted 45 ~ 60 degrees.Fixed on the limit plate, and fixed the opening of the oil gun switch, control the size of the oil tanker output.After starting the refueling gun, open the switch handle of the oil gun, and the oil will be exported through the main valve hole, the muji pipe, the outlet valve and the gun barrel.During refueling, as the oil flows rapidly through the Venn tube, a low pressure zone is formed in the sealing chamber between the Venn tube and the auxiliary seat, leading all the way to the air nozzle at the front of the gun barrel and to the upper chamber of the automatic control film.When the oil or foam in the container has not reached the air nozzle, the low pressure area is released due to the large air volume in the air nozzle;When oil or foam submerges the air nozzle, the air nozzle is blocked, forming a negative pressure in the upper chamber of the automatic control film, which causes the automatic control film to move up and the steel ball to fall off.