Good price and quality fence semi-trailer is mainly composed of carriage, frame, outrigger (support device), suspension, axle (axle assembly), electrical circuit, protective net, tool box and other parts.
1. Compartment
Mainly used to restrain the goods carried, the railings of the good price and quality fence semi-trailer are mainly divided into large vertical, small vertical, flat, corrugated, embossed and so on.
2. Frame
The frame of the good price and quality fence semi-trailer is assembled and welded by welded longitudinal beams, through beams and steel members made of steel plates for vehicles. It is a space frame structure and is used to support loads, install traction pins, suspension, support and other major components. .
3. Outriggers
The outrigger part of the good price and quality fence semi-trailer is used to support the front load of the semi-trailer after being unhooked. It consists of a base, a pull rod transmission mechanism, an inner square tube, an outer square tube, a gearbox, and a control handle.

4. Suspension
The device used for load transmission and shock absorption mainly includes brackets, pull rods, upper and lower shaft clamps, U-shaped bolts, leaf springs, parallel arms, etc. The leaf spring is fastened on the shaft body of the axle with U-shaped bolts, and the two ends are stuck in the frame bracket, connected in series through the balance arm, and the balance arm is balanced within a certain range.
5. Wheel bridge assembly
It consists of tires, steel rims, hubs, brakes and axles.
6. Gas path
A device used for normal driving braking and emergency driving braking. The circuit part of the good price and quality fence semi-trailer is composed of gas joints, inflation pipelines, control pipelines, emergency relay valves, air storage tanks, and brake air chambers.
7. Circuit
It plays the role of lighting and signal transmission. It is connected to the tractor by the plug, and the wiring is generally hidden in the frame.
8. Fence
The fence of the good price and quality fence semi-trailer can prevent external objects from entering the lower part of the car body, and play a protective and blocking role.
9. Toolbox
Materials used to hold tools, rain cloths, and ropes carried on the vehicle are generally arranged on the side or rear of the vehicle body.