What is the working principle of the brake?

When our car is started, air will enter the brake chamber from the air intake. At this time, the accessories inside the chamber will work, and the diaphragm will be deformed under the action of air pressure, so that it is pushed by Kia. Push the push rod down to automatically adjust the rotation of the brake cam, and generate an automatic friction pad to press against the brake drum to brake.
The air chamber manufacturer tells everyone that air enters the air chamber when the brake is stopped, so that Kia pushes the piston further, and the inflation pressure enters the pressure air chamber from port 12 to generate a force acting on the piston. When the pressure is greater than 0.65 At MPa, the force acting on the piston is greater than the preload of the spring. At this time, when the movement reaches a certain limit, the brake will stop.
The brake air chamber produced by the air chamber manufacturer is completely dependent on the external pressure to produce changes, which further causes our air chamber to perform normal production work, so it depends on the pressure to produce normal work.