Pedal sitting type electric tricycle

Abstract

A pedal sitting type electric tricycle comprises a tricycle frame composed of a four-beam keel and a flat frame assembly; a rear compartment is arranged at the top of the rear side of the tricycle frame; a rear axle assembly is connected to the bottom of the rear side of the tricycle frame through a plate spring damping mechanism; the left end and the right end of the rear axle assembly are each provided with a rear wheel; the tricycle frame is provided with a braking system for braking the rear wheels; and a dumping device is arranged between the flat frame assembly and the rear compartment, a dual-purpose structure serving as a backrest and a passenger seat is arranged, and an improved self traveling structure driven by lithium batteries is arranged on front wheels. The pedal sitting type electric tricycle is firm, durable, large in carrying capacity, more uniform in carrying capacity distribution and good in braking effect; a handbrake is operated and controlled comfortably and safely, manpower is saved through self discharging, and the functional effect of the backrest is improved; the safety and the comfort are improved through the plate spring damping structure of which the front portion is fixed and the rear portion is movable; and the pedal sitting type electric tricycle has the functions of energy conservation, environment protection, emission reduction and continuous long-distance running.

Description

technical field [0001] The invention relates to a tricycle, in particular to a pedal electric tricycle. Background technique [0002] In recent years, electric tricycles have become one of the most commonly used means of transportation for carrying people or goods. But existing tricycle on the market has following defect or deficiency: [0003] 1. Generally, two keels are used, which have low strength, poor load-bearing capacity, and uneven force; the keel is welded in sections, and there are many solder joints, which not only affects the appearance, but also is easy to break, and the anti-rollover performance is poor; two keels The keel also has a great influence on the installation strength of the front bumper, and the safety is not high; [0004] 2. The brake system of the rear wheel of the electric tricycle is relatively complicated, and the manufacturing cost is high, and many tricycles do not have a handbrake device. For electric tricycles with a handbrake device, th...

AI Technical Summary

Problems solved by technology

[0003] 1. Generally, two keels are used, which have low strength, poor load-bearing capacity, and uneven force; the keel is welded in sections, and there are many solder joints, which not only affects the appearance, but also is easy to break, and the anti-rollover performance is poor; two keels The keel also has a great influence on the installation strength of the front bumper, and the safety is not high;

[0004] 2. The brake system of the rear wheel of the electric tricycle is relatively complicated, and the manufacturing cost is high, and many tricycles do not have a handbrake device. For electric tricycles with a handbrake device, the handbrake lever is set at the foot pedal. When using the handbrake, the driver needs to bend over operation, which will cause a greater safety hazard;

[0005] 3. Since the tricycle needs to be loaded, manual operation is required for loading and unloading, which consumes a lot of time and physical strength

Especially for materials such as sand, gravel, grain, soil, etc., if there is no self-unloading device, it will be very troublesome

At present, the rear compartments of many electric tricycles are generally fixed on the frame and cannot be unloaded;

[0006] 4. The backrest on the rear side of the driver's seat is fixed. When people need to be carried, there is no seat in the rear compartment. People sitting in the rear compartment should move a bench or sit directly on the side rail of the rear compartment. Occupants can be very dangerous during emergency braking

At present, the lugs at both ends of the leaf spring are connected to the lifting lugs at the bottom of the frame through a swing rod. When the wheel passes through a bumpy road in this connection structure, the leaf spring will swing back and forth, and the bearing capacity is small. The impact force will cause damage to the swing rod, resulting in a car accident and poor safety

In addition, the bushes inside the lugs at both ends of the leaf spring are often damaged by impact;

[0008] 6. The existing general electric tricycles are generally riding type, and the driver will be very tired after a long time riding on the driver's seat

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