Transmission connector of electric bicycle

Abstract

The invention discloses a transmission connector of an electric bicycle. The transmission connector comprises a connecting body. Stepped through holes are formed inside the connecting body. The large-aperture section of the connecting body is provided with an inner thread for connecting. A first bearing is disposed in the second stepped through hole of the connecting body. A plurality of steps are disposed outside the connecting body. A plurality of pawl grooves are peripherally distributed in the middle of the outer side of the connecting body. A pawl is disposed in each pawl groove, and a pawl spring is disposed on the pawl. A ratchet is mounted on the outer lateral wall of the connecting body through a second bearing. The pawl springs, the pawls and the ratchet are matched to form a ratchet mechanism. A rear driven gear fixedly sleeves the ratchet. A fixing cover is disposed on the second bearing. The fixing cover is matched with the ratchet in a threaded manner. The transmission connector is simple in structure, high in transmission efficiency, good in stability, free of ratchet structure failure, capable of facilitating mounting connection between a drive motor and a transmission assembly, and low in cost.

Description

technical field [0001] The invention relates to bicycles, in particular to a transmission joint of an electric bicycle. Background technique [0002] The transmission method of traditional electric bicycles adopts sprocket chain transmission. Although this transmission structure is provided with a chain baffle, it is still an open transmission structure, and the rider's trousers or skirts are easily entangled or bitten by the chain or sprocket. Even cause the rider to fall and cause property or personal injury. At the same time, due to the increased speed, the chain is prone to telomeres or fall off after a period of use, requiring re-maintenance or installation, which brings a lot of trouble to the rider. In recent years, there has been a transmission system in the market in which the transmission shaft replaces the chain transmission, but the existing drive motor and the shaft transmission need to be connected by a special hub, so it is necessary to purchase or make speci...

AI Technical Summary

Problems solved by technology

[0002] The transmission method of traditional electric bicycles adopts sprocket chain transmission. Although this transmission structure is equipped with a chain baffle, it is still an open transmission structure. The rider's trousers or skirt are easily entangled or bitten by the chain or sprocket. Even cause the rider to fall and cause property or personal injury

At the same time, as the speed increases, the chain tends to end grain or fall off after a period of use, requiring re-maintenance or installation, which brings a lot of trouble to the rider

In recent years, a transmission system in which the transmission shaft replaces the chain drive has appeared on the market, but the existing drive motor and the shaft drive need to be connected by a special hub, so special tools need to be purchased or made, which is not conducive to maintenance operations and causes economic costs increase, and at the same time, the workload of maintenance personnel is heavy during after-sales maintenance

At the same time, the traditional bicycle transmission shaft cannot be applied to the rear motor of the electric bicycle, which has brought a bottleneck to the development of the electric bicycle towards the shaft transmission.

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