dual drive tricycle

Abstract

The invention relates to the fields of traffic, fitness and application technologies, in particular to a dual-drive tricycle driven by the hands and feet. The dual-drive tricycle comprises a frame and a rear wheel. A rear chain disc and a variable speed chain disc are installed below a saddle. The variable speed chain disc is connected with a variable speed flywheel through a rear chain. Front wheels are installed on the two sides of the front portion of the frame. Axles of the front wheels are connected to direction shafts. The direction shafts are in sleeved connection with direction shaft barrels. The direction shaft barrels are connected with the two sides of the front portion of the frame. Direction barrels are connected with the two sides of the front portion of the frame. Direction columns are sleeved with the direction barrels. The bottoms of the direction columns are connected with the direction shafts through direction connecting rods. The tops of the direction columns are connected with push-pull direction rods through universal couplings. The upper ends of the push-pull direction rods are in sleeved connection with push-pull direction barrels. The push-pull direction barrels are connected with rocking arms through push-pull connecting rods. An upper chain disc is connected with a front flywheel through a hand-driven chain. A front chain disc is connected with the rear chain disc through a main chain. The push-pull direction rods are connected with handlebars. The dual-drive tricycle is suitable for a person with all the strong limbs, a person without one upper limb or a person with the incomplete lower limbs in the fields of traffic and fitness.

Description

technical field [0001] The invention relates to the technical fields of transportation, fitness and application, in particular to a dual-drive tricycle driven by hands and feet. Background technique [0002] With the improvement of modern people's living standards, people gradually realize the importance of their own health and the environment. As an environmentally friendly transportation and fitness tool, bicycles are especially favored and advocated by groups who love fitness and environmental protection. However, the existing bicycles are not ideal in terms of human body function fatigue, upper limb length limitation, relative speed, and safety and comfort as the distance increases. For example 1: The existing racing tricycle driven by rotating the handlebars by hand, the rocker arm cannot be lengthened and the force arm point cannot be increased due to the limitation of the length of the upper limbs, and the human body is prone to fatigue after a long time; Example 2: T...

AI Technical Summary

Problems solved by technology

However, the existing bicycles are not ideal in terms of human body fatigue, upper limb length limitation, relative speed, and safety and comfort as the distance increases.

For example 1: The existing racing tricycle driven by rotating the handlebars by hand, the rocker arm cannot be lengthened and the force arm point cannot be increased due to the limitation of the length of the upper limbs, and the human body is prone to fatigue after a long time; Example 2: The existing stepper Tricycles are driven by hands and feet in a standing posture. They are not suitable for long-distance travel and can only be used for fitness exercises; for example 3: the existing two-wheeled bicycles have mature technology and stable performance, but their safety and comfort are not ideal.

Images