Frame: A frame that supports the entire vehicle structure, usually made of steel and capable of bearing heavier loads.

Motor: Provides power to the tricycle, usually installed on the rear wheel, with a larger power to meet transportation needs.

Battery: Powers the motor, usually a lead-acid battery or a lithium-ion battery, with a larger capacity to provide a longer range.

Controller: Manages power transmission between the motor and the battery, regulating speed and power output.

Transmission system: Includes gears and chains, transmitting the power of the motor to the wheels.

Braking system: Ensures riding safety, usually including mechanical brakes (such as drum brakes or disc brakes) for the front and rear wheels.

Cockpit: The part operated by the driver, including the seat, steering wheel or handlebars, accelerator and brake pedals.

Wheels and tires: Provide contact surfaces for driving, usually made of durable rubber materials, and the rear wheels are larger to enhance stability and load-bearing capacity.

Cargo compartment: The part used to load cargo, the size and shape vary depending on the purpose.

Lighting system: Front and rear lights and turn signals, used for safety prompts for night riding and turning.

Suspension system: improves driving comfort and stability, usually including shock absorbers for the front and rear wheels.

Electrical system: includes battery management system, instrument panel, horn, and electric auxiliary system.

Protective facilities: such as roof, windshield, seat belts, etc., provide additional safety and comfort.