Reciprocating type bicycle and rickshaw transmission mechanism

Abstract

The invention provides a reciprocating type bicycle and rickshaw transmission mechanism. The reciprocating type bicycle and rickshaw transmission mechanism comprises a double-ratchet-wheel rear wheel, flywheels, a transmission chain (transmission rope), a rack, a fixed pulley, connecting rods, pedals, a linkage rope and a rear wheel shaft. The two flywheels are installed on the two sides of the double-ratchet-wheel rear wheel, the transmission chain (transmission rope) is of a sectional type, and the rear section has large elasticity. The elastic end of the transmission chain (transmission rope) is fixed on the rack or at the front end of the connecting rod, passes through the flywheel and the fixed pulley, and is finally connected with the corresponding connecting rod; the connecting rod can be mounted on a frame and can also be mounted on a rear wheel shaft; the front ends of the two connecting rods are connected together by winding the fixed pulley on the rack through a linkage rope; and pedals are arranged at the front ends of connecting rod arms. Circumferential motion is replaced by up-down reciprocating motion during riding, work can be done by means of the gravity of a human body, the force exerting function of a human body structure is exerted to the maximum extent, the comfort of a rider is improved, the number of parts is small, machining and maintenance are easy, and large-scale popularization is easy.

Description

technical field [0001] The invention belongs to the transmission field of bicycles and rickshaws, and is a novel transmission mechanism for bicycles and rickshaws. Background technique [0002] The transmission system of existing bicycles and rickshaws mostly uses a circular chain drive. The chain is near the trousers, and the trousers are often stained with oil. The chains of ordinary quality are not suitable for use on ordinary bicycles without tension due to wear and stress. It is necessary to adjust the center distance for a long time. [0003] Existing bicycles are driven by the feet during riding, and the crank rotates in circles. The torque goes from zero to maximum and then to zero again and again. Pedestrians will consume a lot of physical strength when riding long distances, causing ordinary people to ride ordinary non-variable bicycles within a short distance of two or three kilometers. The car will also feel soreness and discomfort in the knee joints after abou...

AI Technical Summary

Problems solved by technology

During the driving process, each pedal connecting rod only reciprocates in a circular arc, and the range of this movement is just the range where the human body is most suitable for exerting force and has the best force effect; compared with the traditional chain drive structure, it can Using the rider's own gravity to generate force and do work, it overcomes the shortcomings of traditional bicycles that have zero force arms and dead spots to do too much useless work during operation; it overcomes the shortcomings of riders' knee joints that are too large to cause damage. In addition, the motion trajectory of the pedal only involves the front portion of the installation shaft, and the installation shaft can be shared with the rear wheel shaft, and of course the rear wheel shaft can not be used, and the shaft is installed separately on the frame; Move a lot, so that the bicycle frame and the overall layout are less restricted, the distance between the front and rear wheels can be reduced, and the overall structure of the bicycle is more compact

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