Tire inflation device and mining dump truck

The utility model discloses a tire inflation device and a mining dump truck, and the tire inflation device is applied to a vehicle with two wheels on each side of a rear axle, and comprises a connecting part and a fixing part, the connecting part is fixedly mounted on the rim; the fixing part is detachably installed on the connecting part and used for fixing the two inflating valves. The mountingposition can be adjusted to adapt to the length of the inflating valve, the structure is simple, the inflating valve is easy to dismount and mount, the occupied space is small, fixing is firm, it is guaranteed that the inflating valve does not shake due to rotation of a rim and does not interfere with other parts, the inflating valve is prevented from being damaged, and the driving safety is improved. 本实用新型公开了一种轮胎充气装置及矿用自卸车，轮胎充气装置应用于后桥每侧设有两个车轮的车辆上，包括连接部件和固定部件；连接部件固定安装在轮辋上；固定部件可拆卸安装在所述连接部件上，用以将两个气门嘴固定。本实用新型可调节安装位置，以适应气门嘴长度且具有结构简单，气门嘴拆装简易，占用空间小，固定牢靠，保证气门嘴不出现因轮辋旋转而晃动，不与其它部件干涉，避免损坏气门嘴，增加了行车安全性。