WO2022179167A1

WO2022179167A1 - Electric bicycle having no spoke and hub

Info

Publication number: WO2022179167A1
Application number: PCT/CN2021/128273
Authority: WO
Inventors: 朱云飞
Original assignee: 杭州联帮走马文化发展有限公司
Priority date: 2021-02-25
Filing date: 2021-11-02
Publication date: 2022-09-01
Also published as: CN214690029U

Abstract

An electric bicycle having no spoke and hub, comprising a bicycle frame (1), a handlebar (2), a front wheel (3), a rear wheel (4), and a transmission device (5). The bicycle frame (1) comprises a cross beam (11); a front wheel fixing seat (12) and a front fixing frame (13) rotatably connected to the front wheel fixing seat (12) are provided on the front side of the bottom of the cross beam (11); the bottom of the handlebar (2) penetrates through the cross beam (11) and is fixed to the front fixing frame (13); a rear wheel fixing seat (14) and a rear fixing frame (15) are provided on the rear side of the bottom of the cross beam (11); the front wheel (3) comprises a front inner hub (31) and a front outer hub (32); the front inner hub (31) is fixedly connected to the front fixing frame (13); the rear wheel (4) comprises a rear inner hub (41) and a rear outer hub (42); the rear inner hub (41) is fixedly connected to the rear wheel fixing seat (14) by means of the rear fixing frame (15); and an inner gear (43) is provided on the inner side of the rear inner hub (41).

Description

spokeless hub electric bike

technical field

The utility model relates to the technical field of bicycles, in particular to an electric bicycle without a spoke hub.

Background technique

Bicycles, also known as bicycles or bicycles, are usually small land vehicles with two wheels. After a person rides on a car, it is powered by pedals, which is a green and environmentally friendly means of transportation. English bicycle. Where bi means two, and cycle means wheel, that is, a two-wheeled vehicle. Bicycles are a traditional industry with a history of more than 100 years. Due to environmental protection and traffic issues, bicycles have once again become a favorite transportation and fitness tool for residents of all countries in the world, especially developed countries. The focus of the world bicycle industry is shifting from traditional means of transportation to sports. type, mountain type, leisure type change.

Among the traditional bicycle parts, the frame, front fork, handlebar, wheel, saddle and front fork assembly are the main body of the bicycle. The transmission part includes pedals, cranks, sprockets, chains, central shafts and flywheels, etc. The pedals are stepped on by manpower, and the wheels are driven to rotate through the above transmission parts to drive the car forward. Now with the development of science and technology, some bicycles are equipped with electric motors, which can partially replace human power and realize the hybrid movement of electric power and human power. Traditionally, wheels have spokes and hubs. Now there are also no spoke wheels, and no spoke wheel maintenance. Convenient and the passenger won't get hurt by getting their feet caught in the spokes.

Utility model content

The utility model proposes an innovative structure for the existing traditional electric bicycle, which is free of wheel spokes and hubs, and an electric bicycle without spokes and hubs equipped with a motor.

In order to achieve the above purpose, the utility model adopts the following technical solutions: an electric bicycle without spoked hubs, including a frame, a handlebar, a front wheel, a rear wheel, and a transmission device, the frame includes a beam, and the front side of the bottom of the beam A front wheel fixing seat and a front fixing frame rotatably connected with the front wheel fixing seat are provided, the bottom of the handlebar is fixed with the front fixing frame through a cross beam, and a rear wheel fixing seat and a rear A fixing frame, the front wheel includes a front inner hub and a front outer hub, the front inner hub is fixedly connected with the front fixing frame, and the front outer hub is sleeved on the outside of the front inner hub and is rotatable with the front inner hub The rear wheel includes a rear inner hub and a rear outer hub, the rear inner hub is fixedly connected to the rear wheel fixing seat through a rear fixing frame, an inner gear is arranged on the inner side of the rear inner hub, and the rear inner hub is The outer wheel hub is sleeved on the outside of the rear inner wheel hub and is rotatably connected with the rear inner wheel hub.

Preferably, the front inner hub and the rear inner hub are respectively provided with a first fixing block and a second fixing block, and the front fixing frame and the rear fixing frame are respectively provided with the first fixing block and the second fixing block. The matched first bifurcation and the second bifurcation are respectively fixed with bolts.

Preferably, the transmission device includes a motor, a large plate, a first transmission wheel, and a second transmission wheel, and the rear fixing frame extends downward from the fixing position with the rear wheel fixing seat and bifurcates into a rear inner wheel hub fixing end, The first fixed end and the second fixed end, the fixed end of the rear inner hub is fixed with the rear inner hub, the first fixed end is located outside the rear outer hub, and the second fixed end is located inside the rear inner hub, The motor is fixed on the first fixed end, the first transmission wheel and the second transmission wheel are fixed on the second fixed end, the large plate is connected to the motor in a transmission, and the large plate and the first transmission wheel pass through the transmission belt The first transmission wheel is coaxially connected with the second transmission wheel, and the second transmission wheel is a gear and is meshed and connected with the inner gear of the rear inner wheel hub.

Preferably, a spring shock absorber is provided between the rear fixing frame and the rear wheel fixing seat.

Preferably, the front outer hub and the rear outer hub are sleeved with tires.

Preferably, the first fixed end of the rear fixing frame is provided with a large disk shaft, the large disk shaft is connected to the motor drive, the large disk is connected with the large disk shaft, and the two ends of the large disk shaft are respectively provided with pedal rods .

Preferably, a downward depression is provided at the position corresponding to the position of the cross member and the rear wheel, and the depression forms the seat.

Preferably, the front fixing frame and the rear fixing frame are respectively provided with safety baffles on the sides, and the safety baffles are provided with fenders which are respectively matched with the front wheels and the rear wheels.

In this scheme, a bearing steel ball is added between the front outer hub, the front inner hub, the rear outer hub and the rear inner hub, and the entire hub is made into a bearing with an outer diameter of 26 inches, so that the wheel is made into a hollow core without spokes and hubs. Effect: This scheme adopts rear wheel drive, the rear inner wheel hub is fixed by the rear fixing frame, the motor drives the large plate, the large plate drives the belt or chain, the belt or chain drives the first transmission wheel and the second transmission wheel, and the second transmission wheel drives the rear wheel. The inner gear on the right side of the outer hub drives the rear outer hub and the tire to rotate, so that the entire rear wheel can rotate and push the front wheel to walk forward; The front outer hub of the wheel can be rotated, and the bicycle direction is driven by the handle to drive the front fixed frame to rotate and turn; in addition, the brake of the bicycle in this scheme is controlled by the brake handle on the handle, which can control the motor and the wheel to brake at any time.

The utility model has the following beneficial effects: an innovative structure is proposed, which has no spokes and hubs, and is equipped with an electric motor without spokes and hubs; the electric motor can save the rider's strength; You can get hurt by getting your foot caught in the spokes.

Description of drawings

Figure 1 is a schematic diagram of an external structure of the present invention.

Figure 2 is a schematic structural diagram of the present invention.

FIG. 3 is a schematic diagram of the fixing structure of the front inner wheel hub of the present invention.

4 is a schematic diagram of the fixing structure of the rear inner wheel hub of the present invention.

FIG. 5 is a schematic structural diagram of the transmission device of the present invention.

In the picture: 1, frame 2, handlebar 3, front wheel 4, rear wheel 5, pressure block 6, safety baffle 7, tire 11, beam 12, front wheel fixing seat 13, front fixing frame 14, rear wheel fixing Seat 15, rear fixing frame 16, spring shock absorber 17, large disc axle 18, pedal rod 19, recess 31, front inner hub 32, front outer hub 41, rear inner hub 42, rear outer hub 43, inner gear 51 , motor 52, large plate 53, first transmission wheel 54, second transmission wheel 55, transmission belt 131, first bifurcation 132, second bifurcation 311, first fixed block 312, second fixed block.

Detailed ways

The present utility model will be further described below with reference to FIGS. 1 to 5 of the accompanying drawings.

The spokeless hub electric bicycle includes a frame 1, a handlebar 2, a front wheel 3, a rear wheel 4, and a transmission device 5. The frame 1 includes a beam 11, and the front side of the bottom of the beam 11 is provided with a front wheel fixing seat 12, and the front wheel The fixed base 12 is rotatably connected to the front fixed frame 13. The bottom of the handlebar 2 is fixed to the front fixed frame 13 through the cross beam 11. The rear side of the bottom of the cross beam 11 is provided with a rear wheel fixed base 14 and a rear fixed frame 15. The front wheel 3 includes a front The inner hub 31, the front outer hub 32, the front inner hub 31 is fixedly connected with the front fixing frame 13, the front outer hub 32 is sleeved on the outside of the front inner hub 31 and is rotatably connected with the front inner hub 31, and the rear wheel 4 includes the rear inner hub 41. The rear outer wheel hub 42, the rear inner wheel hub 41 is fixedly connected to the rear wheel fixing seat 14 through the rear fixing frame 15, the inner side of the rear inner wheel hub 41 is provided with an internal gear 43, and the rear outer wheel hub 42 is sleeved on the outer side of the rear inner wheel hub 41 and is connected with the rear inner wheel hub 41. The rear inner hub 41 is rotatably connected;

The inner side of the front inner hub 31 and the rear inner hub 41 are respectively provided with a first fixing block 311 and a second fixing block 312 . The first bifurcation 131, the second bifurcation 132, the first fixing block 311, the second fixing block 312 and the first bifurcation 131 and the second bifurcation 132 are respectively fixed by bolts;

The transmission device 5 includes a motor 51, a large plate 52, a first transmission wheel 53, and a second transmission wheel 54. The rear fixing frame 15 extends downward from the fixing position with the rear wheel fixing seat 14 and is bifurcated into a rear inner wheel hub fixed end, a first The fixed end and the second fixed end, the fixed end of the rear inner hub is fixed with the rear inner hub 41, the first fixed end is located outside the rear outer hub 42, the second fixed end is located inside the rear inner hub 41, and the motor 51 is fixed on the first fixed end , the first transmission wheel 53 and the second transmission wheel 54 are fixed on the second fixed end, the large plate 52 is connected with the electric motor 51, the large plate 52 is connected with the first transmission wheel 53 through the transmission belt 55, and the first transmission wheel 53 is connected with the second transmission wheel 54 is coaxially connected, and the second transmission wheel 54 is a gear and is meshed with the inner gear 43 of the rear inner hub 41;

A spring shock absorber 16 is arranged between the rear fixing frame 15 and the rear wheel fixing seat 14;

The outer side of the front outer hub 32 and the rear outer hub 42 are sleeved with tires 7;

The first fixed end of the rear fixing frame 15 is provided with a large disk shaft 17, the large disk shaft 17 is drivingly connected with the motor 51, the large disk 52 is connected with the large disk shaft 1, and the two ends of the large disk shaft 17 are respectively provided with pedal rods 18;

The cross member 11 is provided with a downward recess 19 at the position corresponding to the position of the rear wheel 4, and the recess 19 forms a seat;

Safety baffles 6 are respectively provided on the sides of the front fixing frame 13 and the rear fixing frame 15 .

The specific implementation process is that this scheme adopts the rear wheel 4 to drive, the rear inner wheel hub 41 is fixed by the rear fixing frame 15, the motor 51 drives the large plate 52, the large plate 52 drives the transmission belt 55 (belt or chain), and the transmission belt 55 (belt or chain) The first transmission wheel 53 and the second transmission wheel 54 are driven, and the second transmission wheel 54 drives the inner gear 43 on the right side of the rear outer hub 42 to drive the rear outer hub 42 and the tire to rotate, so that the entire rear wheel 4 can be pushed through the beam 11 The front wheel 3 walks forward; the front wheel 3 fixes the front inner hub 31 on the front fixing frame 13 through the front fixing frame 13, so that the front outer hub 32 of the front wheel 3 can rotate, and the bicycle moves forward; The handlebar 2 drives the front fixing frame 13 to rotate and turn; in addition, the brake of the bicycle in this solution is controlled by the brake handle on the handlebar 2, which can control the motor 51 and the wheels to brake at any time.

The above embodiment is an illustration of the present utility model, not a limitation of the present utility model. Any simple transformation scheme of the present utility model belongs to the protection scope of the present utility model.

Claims

An electric bicycle without spoked hubs, comprising a frame, a handlebar, a front wheel, a rear wheel, and a transmission device, characterized in that the frame comprises a beam, and the front side of the bottom of the beam is provided with a front wheel fixing seat, A front fixing frame rotatably connected with the front wheel fixing seat, the bottom of the handlebar is fixed with the front fixing frame through the cross beam, the rear side of the bottom of the cross beam is provided with a rear wheel fixing seat and a rear fixing frame, and the front The wheel includes a front inner hub and a front outer hub, the front inner hub is fixedly connected with the front fixing frame, the front outer hub is sleeved on the outside of the front inner hub and is rotatably connected with the front inner hub, the rear wheel It includes a rear inner wheel hub and a rear outer wheel hub. The rear inner wheel hub is fixedly connected to the rear wheel fixing seat through the rear fixing frame. The inner side of the rear inner wheel hub is provided with an internal gear, and the rear outer wheel hub is sleeved in the rear inner wheel. The outer side of the hub is rotatably connected with the rear inner hub.
The spokeless hub electric bicycle according to claim 1, wherein the front inner hub and the rear inner hub are respectively provided with a first fixing block and a second fixing block, and the front fixing frame and the rear fixing The frame is respectively provided with a first fork and a second fork that cooperate with the first fixed block and the second fixed block, and the first fixed block and the second fixed block are respectively used with the first and second forks Bolted.
The spokeless hub electric bicycle according to claim 1, wherein the transmission device comprises a motor, a large plate, a first transmission wheel, and a second transmission wheel, and the rear fixing frame is fixed from the rear wheel fixing seat The rear inner hub extends downward and is bifurcated into a rear inner hub fixed end, a first fixed end and a second fixed end, the rear inner hub fixed end is fixed with the rear inner hub, and the first fixed end is located outside the rear outer hub , the second fixed end is located inside the rear inner hub, the motor is fixed on the first fixed end, the first transmission wheel and the second transmission wheel are fixed on the second fixed end, the large plate is connected to the motor Transmission connection, the large plate is connected with the first transmission wheel through a transmission belt, the first transmission wheel is coaxially connected with the second transmission wheel, and the second transmission wheel is a gear and meshes with the inner gear of the rear inner hub connect.
The spokeless hub electric bicycle according to claim 1 or 3, wherein a spring shock absorber is arranged between the rear fixing frame and the rear wheel fixing seat.
The spokeless hub electric bicycle according to claim 1, wherein tires are sleeved on the outside of the front outer hub and the rear outer hub.
The spokeless hub electric bicycle according to claim 3, wherein the first fixed end of the rear fixing frame is provided with a large disk shaft, the large disk shaft is connected with the motor in a transmission, and the large disk is connected with the large disk shaft , the two ends of the large disc shaft are respectively provided with pedal rods.
The spokeless hub electric bicycle according to claim 1, characterized in that a downward recessed portion is provided at the position corresponding to the cross member and the rear wheel, and the recessed portion forms a seat.
The spokeless hub electric bicycle according to claim 1, wherein the front fixing frame and the rear fixing frame are respectively provided with safety baffles on the sides, and the safety baffles are respectively provided with front wheels and rear wheels. Fitted fenders.