Centrally-arranged motor and bicycle with centrally-arranged motor
A technology of centrally mounted motors and bicycles, applied to bicycle racks, bicycle accessories, vehicle components, etc., can solve the problems of complex structure, random switching between bicycles and power-assisted bicycles, high production costs, etc., and achieve firm installation, balanced adjustment, and convenient operation Effect
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Embodiment 1
[0026] See figure 1 and figure 2 , the present invention has a motor body 1, a clutch 6, an output center shaft 3 of the motor body 1, and a housing 2 locked on one side of the motor body 1 by bolts, one end of the clutch 6 protrudes from the motor body 1, and the inner motor The structure is the same as the internal structure of the coaxial central motor, which is the prior art, and will not be described in detail here. The motor body 1 is provided with a fixed assembly 4, which is arranged parallel to the motor body 1. The motor body 1 and the fixed assembly 4 are integrally connected through the base 12. The fixed assembly 4 is provided with threads, and the threads on the fixed assembly 4 cooperate with the lock. The tightening nut 5 fixes the motor body 1 below the bicycle frame, and an installation hole 61a is provided on the outer end cover of the motor body 1 protruding from the clutch 6 .
Embodiment 2
[0028] See Figure 4 The difference between this embodiment and Embodiment 1 is that, more specifically, the fixing assembly 4 is a hollow cylindrical beam whose outer diameter is the same as the inner diameter of the bicycle frame bottom bracket. The base 12 of the hollow cylindrical crossbeam is provided with an accommodating groove 41 matching the outer circumference of the bottom bracket. The length of the hollow cylindrical crossbeam is the same as the length of the bottom bracket on the bicycle frame. Internal threads, the outer circumference of the locking nut 5 is provided with external threads, the inner circumferential internal threads of the hollow cylindrical beam match the outer peripheral external threads of the locking nut 5, and the inner circumference of the locking nut 5 is an inner regular hexagon 51a , also can be other convenience screwdrivers such as square, regular pentagon to carry out the regular polygon of fixed operation, the setting of inner regular...
Embodiment 3
[0030] See Figure 5 The difference between this embodiment and Embodiment 1 is that, more specifically, the fixing assembly 4 is a hollow cylindrical beam whose outer diameter is the same as the inner diameter of the bicycle frame bottom bracket. The base 12 of the hollow cylindrical beam is provided with an accommodating groove 41 matching the shape of the outer circumference of the bottom bracket, the length of the hollow cylindrical beam is greater than the length of the bottom bracket on the bicycle frame, and the outer circumference of the hollow cylindrical beam is provided with external threads , the inner circumference of the lock nut 5 is provided with internal threads, the outer circumference of the lock nut 5 is a regular hexagon 51b, the inner threads of the lock nut 5 are matched with the outer circumference of the hollow cylindrical beam, and the locking The outer periphery of the nut 5 is set as a regular hexagon 51b to facilitate cooperation with a wrench, so ...
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