a reverse tricycle

Abstract

Disclosed is a reverse tricycle provided with two steering wheels in the front and a driving wheel in the rear, the reverse tricycle comprising a support mechanism and a steering device. The support mechanism comprises a vehicle frame, a two-front wheel fixing frame and a rear fork (9). The steering device comprises a steering column (1), a vertical tube (2) connected to the vehicle frame, and a steering knuckle. In a support structure of the reverse tricycle, since a front suspension frame comprises a cavity (104) which is provided in the middle thereof and used for installing a transverse front shock absorber (5), a front upper cavity (101) provided at a front upper portion, a front lower cavity (102) provided at a front lower portion, and a rear lower cavity (103) provided at a rear lower portion, the transverse front shock absorber (5) and a support arm assembly are both concentratedly provided at the front suspension frame which is centralized in structure, and a front segment of the vehicle frame of the reverse tricycle has a larger space. At the same time, with respect to a vertical front shock absorber, the front shock absorber (5), which is transversally provided at the middle cavity (104) of the front suspension frame, lowers a shock absorption position and the center of gravity of the whole vehicle. In addition, using hingeable connection to replace universal joint connection reduces the requirements for a process and reduces the cost.

Description

technical field [0001] The invention relates to parts of a tricycle, in particular to a reverse tricycle with two steering wheels at the front and a driving wheel at the back. Background technique [0002] An inverted tricycle is a tricycle in which the front wheels have left and right wheels, and the rear wheels have a round, wherein the two front wheels have a steering function, and the rear wheels have a driving function. At present, the supporting structure of an inverted tricycle on the market includes a vehicle frame, a front two-wheel fixed frame, and a rear fork. The vehicle frame includes a rear section of the vehicle frame, a middle section of the vehicle frame, and a front section of the vehicle frame. The front two-wheel fixing frame, the rear part of the frame is movably connected to the rear flat fork, the front two-wheel fixing frame is fixed on the front two wheels, the rear center is fixed on the frame with a single shock-absorbing upper hinge, and the rear ...

AI Technical Summary

Problems solved by technology

At present, the supporting structure of an inverted tricycle on the market includes a vehicle frame, a front two-wheel fixed frame, and a rear fork. The vehicle frame includes a rear section of the vehicle frame, a middle section of the vehicle frame, and a front section of the vehicle frame. The front two-wheel fixing frame, the rear part of the frame is movably connected to the rear flat fork, the front two-wheel fixing frame is fixed on the front two wheels, the rear center is fixed on the frame with a single shock-absorbing upper hinge, and the rear center is fixed with a single shock-absorbing lower hinge On the rear fork, due to the difference between the frame and the front two-wheel fixing frame, the support structure of the entire inverted tricycle is unreasonable, and there are defects that the front suspension structure is scattered and not concentrated, and the space layout of the front section of the inverted tricycle frame is small. In addition, the front two-wheel steering device of the inverted three-wheel on the market includes a standpipe and a steering column connected to the support frame, and the support frame refers to the fixing parts of the fixed rotating mechanism parts such as the vehicle frame or the front suspension. , the steering column drives the steering arm of the universal joint to control the direction of the front wheels. Since the steering arms are connected by universal joints, and the cooperation between the universal joints requires a large rotation gap, resulting in a large operating gap and a slow corresponding speed ;In addition, there is also a rack-type transmission similar to that on a car. Although this method has a small rotation gap, the operating range is large. It usually requires several turns of the steering wheel to rotate the wheel direction to a suitable position, and it is not suitable for reversing tricycles. Steering handle, so it is necessary to provide a front two-wheel steering device suitable for inverted tricycles with fast response speed and small rotation clearance

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