Leaf spring: It is composed of multiple steel plates with unequal lengths and unequal curvatures. After installation, both ends naturally bend upwards. When the impact force of the road surface on the wheel comes, the steel plate is deformed, which plays the role of buffering and damping, and also has the role of guiding and transmitting force when it is arranged longitudinally. Most of the non-independent suspensions use leaf springs as elastic elements, which can eliminate the need for guide devices and shock absorbers, and have a simple structure.

　　Shock absorption function

　　Damping buffer part function

　　.Guiding function Because of poor comfort, most of them are currently used by trucks, vans, pickups, etc.

　　Shock absorption function 2. Part of the function of damping and buffering 3. Guiding function Because of poor comfort, most of them are currently used by trucks, trucks, pickups, etc.