Brake gas chamber brake gas chamber definition: the pressure of compressed air into mechanical thrust, vehicle braking effect. It is an actuating element in the automobile air brake system, and it is also an important security piece on the bicycle. Classification: 1, according to the functional classification of single chamber and double chamber. 2, according to the classification and structure of diaphragm type piston 3, connected by the upper and lower shell structure, the coating can be divided into hoop type and spinning type. The structure shows that the upper gas chamber assembly and the central gas chamber assembly form the parking room with the hoop or the spinning pressure, and play the role of parking and braking. The gas chamber assembly and the central gas chamber assembly are assembled through the hoop table spinning together to form the driving room and play the role of braking. The upper gas chamber assembly is composed of the upper air chamber shell, the brake spring, the spring seat and the pull rod assembly. The central gas chamber assembly is made up of a medium gas chamber, a 0 ring, a core axis, a core shafts and a core shaft back spring. The core shaft and the core push plate are connected by the way of willow connection. The lever assembly is composed of a pull rod, rod washer and nut installation only on the railing, assembly, use, damage has been removed, to tighten the brake spring on the gas chamber assembly in the normal use, should remove the pull rod, the pull rod nut in the gas chamber side of the pull rod hole. The above statement is the definition of the brake gas chamber, the classification and the explanation of the mechanism.