Bicycle double front wheel drive device

Abstract

The invention relates to a dual front wheel driving device for a bicycle. The dual front wheel driving device comprises a left-front wheel mechanism, a right-front wheel mechanism, a left-front wheel driving device and a right-front wheel driving device, wherein the left-front wheel driving device is connected with the right-front wheel driving device through an intermediate shaft sleeve; the left-front wheel driving device comprises a left treading crank and a left driving shaft; a planetary transmission is arranged on the left driving shaft; the left treading crank comprises a left treading shaft, a first crank and a second crank; a first spline is arranged at the free tail end of the first crank; a second spline matched with the first spline is arranged at one end of the left driving shaft; a third spline matched with the first spline is arranged at one end of a planet frame; the structure of the right-front wheel driving device is identical with that of the left-front wheel driving device. According to the dual front wheel driving device for the bicycle, disclosed by the invention, the structure is compact, the convenience in mounting is realized, and variable speed and differential speed can be realized.

Description

Technical field

[0001] The invention relates to the field of bicycles, in particular to a bicycle double front wheel drive device.

Background technique

[0002] At present, the bicycles on the market are mainly two-wheeled bicycles. With the development of the tourism and leisure industry, four-wheeled bicycles are also used more and more. Four-wheeled bicycles can not only allow more people to exercise, exercise, relax and travel together. It is more due to the increase of people's awareness of environmental protection and the mentality of advocating nature. A four-wheeled bicycle is mainly composed of a vehicle frame, a vehicle seat, wheels, pedals, a driving device, a steering component, and a brake component. The four-wheeled bicycle driving device in the prior art is generally a double rear-wheel drive mechanism. The disadvantages of the driving mechanism are: 1. The structure is relatively lengthy and not compact enough; 2. It is impossible to realize variable spe...

Examples

Embodiment 1

[0025] ginseng figure 1 Shown, a kind of bicycle double front-wheel drive device, it mainly comprises left front wheel mechanism 1, right front wheel mechanism 2, left front wheel drive device 3, right front wheel drive device 4 and axle sleeve 5 several parts, so The central axle sleeve 5 is installed on the vehicle frame and can rotate relative to the vehicle frame, and the central axle sleeve 5 is used to connect the left pedal crank and the right pedal crank.

[0026] ginseng figure 1 and figure 2 As shown, the left front wheel mechanism 1 includes: a left front wheel hub 10 and a left front wheel 11 arranged on the left front wheel hub 10, a first overrunning clutch 12 is arranged in the left front wheel hub 10, and the The first overrunning clutch 12 includes a first outer ratchet 120 and a first inner ratchet 121 arranged in the first outer ratchet 120 and matched with the first outer ratchet 120. In this embodiment, the first inner ratchet 121 and The left transmis...

Embodiment 2

[0032] ginseng Figure 6 As shown, the rest of the structure in this embodiment is the same as that of Embodiment 1, the difference lies in the setting positions of the first overrunning clutch 12 and the second overrunning clutch 22, in this embodiment, the first overrunning clutch 12 is set At the free end of the first crank 301 of the left pedal crank 30, the first outer ratchet 120 of the first overrunning clutch 12 is fixedly connected with the free end of the first crank 301, and the first inner spline 303 is arranged on the first overrunning In the first inner ratchet 121 of the clutch 12, the second overrunning clutch 22 is arranged at the free end of the third crank 401, and the second outer ratchet 220 of the second overrunning clutch 22 is fixedly connected with the free end of the third crank 401 , the second inner spline 403 is arranged in the second inner ratchet 221 of the second overrunning clutch 22, which can also realize the differential function.

Technical field

[0001] The invention relates to the field of bicycles, in particular to a bicycle double front wheel drive device.

Background technique

[0002] At present, the bicycles on the market are mainly two-wheeled bicycles. With the development of the tourism and leisure industry, four-wheeled bicycles are also used more and more. Four-wheeled bicycles can not only allow more people to exercise, exercise, relax and travel together. It is more due to the increase of people's awareness of environmental protection and the mentality of advocating nature. A four-wheeled bicycle is mainly composed of a vehicle frame, a vehicle seat, wheels, pedals, a driving device, a steering component, and a brake component. The four-wheeled bicycle driving device in the prior art is generally a double rear-wheel drive mechanism. The disadvantages of the driving mechanism are: 1. The structure is relatively lengthy and not compact enough; 2. It is impossible to realize variable spe...

Examples

Embodiment 1

[0025] ginseng figure 1 Shown, a kind of bicycle double front-wheel drive device, it mainly comprises left front wheel mechanism 1, right front wheel mechanism 2, left front wheel drive device 3, right front wheel drive device 4 and axle sleeve 5 several parts, so The central axle sleeve 5 is installed on the vehicle frame and can rotate relative to the vehicle frame, and the central axle sleeve 5 is used to connect the left pedal crank and the right pedal crank.

[0026] ginseng figure 1 and figure 2 As shown, the left front wheel mechanism 1 includes: a left front wheel hub 10 and a left front wheel 11 arranged on the left front wheel hub 10, a first overrunning clutch 12 is arranged in the left front wheel hub 10, and the The first overrunning clutch 12 includes a first outer ratchet 120 and a first inner ratchet 121 arranged in the first outer ratchet 120 and matched with the first outer ratchet 120. In this embodiment, the first inner ratchet 121 and The left transmis...

Embodiment 2

[0032] ginseng Figure 6 As shown, the rest of the structure in this embodiment is the same as that of Embodiment 1, the difference lies in the setting positions of the first overrunning clutch 12 and the second overrunning clutch 22, in this embodiment, the first overrunning clutch 12 is set At the free end of the first crank 301 of the left pedal crank 30, the first outer ratchet 120 of the first overrunning clutch 12 is fixedly connected with the free end of the first crank 301, and the first inner spline 303 is arranged on the first overrunning In the first inner ratchet 121 of the clutch 12, the second overrunning clutch 22 is arranged at the free end of the third crank 401, and the second outer ratchet 220 of the second overrunning clutch 22 is fixedly connected with the free end of the third crank 401 , the second inner spline 403 is arranged in the second inner ratchet 221 of the second overrunning clutch 22, which can also realize the differential function.

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