CN211969670U

CN211969670U - Gear-driven bicycle

Info

Publication number: CN211969670U
Application number: CN201920446665.3U
Authority: CN
Inventors: 刘江
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-03
Filing date: 2019-04-03
Publication date: 2020-11-20
Anticipated expiration: 2029-04-03

Abstract

The utility model provides a gear drive bicycle of no chain, includes frame, wheel, axletree, a pair of driving gear, driving gear axle, driven gear shaft, a pair of driven gear, a pair of one-way gear and pedal, the utility model discloses a no chain design to gear drive driven bicycle structure has obtained the drive bicycle not only laborsaving, can reach moreover not pressing from both sides the beneficial effect of stinging the clothing, having not had impact and noise, trouble few, laborsaving at the in-process of riding.

Description

Gear-driven bicycle

Technical Field

The utility model belongs to the technical field of the bicycle technique and specifically relates to a gear drive bicycle of no chain.

Background

The bicycle is the vehicle of riding instead of walk of daily short-range trip, and at present domestic most bicycle is through chain drive mode drive, and chain drive mode driven bicycle can press from both sides and sting the clothing in the course of the work, has certain impact and noise to and easily take place to jump the tooth after wearing and tearing, fall the chain, chain breakage scheduling problem, and driving sprocket sets up on the axle center of rear wheel, need to make hard to pedal when riding, just more hard when meetting the uphill highway section very much.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a chainless bicycle driven by gear transmission, which is not only labor-saving, but also can achieve the purposes of not clamping and biting clothes, having no impact and noise, having less faults and saving labor in the riding process.

The technical scheme adopted by the invention is that the bicycle comprises a bicycle frame, a bicycle wheel shaft, a pair of driving gears, a driving gear shaft, a driven gear shaft, a pair of driven gears, a pair of one-way gears and pedals, wherein the bicycle wheel shaft is connected with the bicycle wheel, the pair of one-way gears are in a ratchet and pawl structure, two ends of the bicycle wheel shaft are connected with the bicycle frame, the driving gear shaft is rotatably connected with the pair of driving gears, two end shaft diameters of the driving gear shaft are connected with the pedals, the driven gear shaft is rotatably connected with the bicycle frame, two end diameters of the driven gear shaft are provided with the pair of driven gears and pawl shaft sleeves and bolts on the pair of one-way gears for fixation, the pair of driving gears are meshed with the pair of one-way gears, and the pair of driven gears are meshed;

the wheel comprises a hub, a tire and gear rings, wherein the hub, the gear rings and a wheel shaft are of an integrated structure, the gear rings are arranged on two sides of the hub, the tire is connected to the excircle of the hub, and the shaft diameters of two ends of the wheel shaft are provided with clamp spring grooves;

the frame comprises a frame beam, a front wheel fork shaft sleeve, an oblique beam, a vertical beam, two rear wheel forks, an auxiliary frame beam, a driving gear shaft sleeve, a rear wheel shaft sleeve and a driven gear shaft sleeve, wherein the frame beam, the front wheel fork shaft sleeve, the oblique beam, the vertical beam, the two rear wheel forks and the auxiliary frame beam form the frame;

bearing chambers are arranged in the pair of driving gear shaft sleeve, the rear wheel shaft sleeve and the driven gear shaft sleeve and in the driving gear shaft driven gear shaft sleeve, the rear wheel shaft sleeve and the driven gear shaft sleeve, the centers of the bearing chambers are shaft holes matched with the driving gear shaft, the wheel shaft and the driven gear shaft, and the driving gear shaft sleeve is provided with a clamp spring groove for fixing the driving gear shaft;

the invention has the beneficial effects that: the utility model discloses a no chain design to gear drive driven bicycle structure has obtained the drive bicycle and has not only laborsaving, can reach moreover not pressing from both sides the beneficial effect that stings the clothing, does not have impact and noise, the trouble is few, laborsaving at the in-process of riding.

Description of the drawings:

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1 in accordance with the present invention;

FIG. 4 is a structural view of the rear wheel of the present invention;

FIG. 5 is a front view of the structure of FIG. 4 according to the present invention;

FIG. 6 is a front view of the frame structure of the present invention;

fig. 7 is a top view of the present invention shown in fig. 6;

FIG. 8 is a cross-sectional view taken along line C-C of FIG. 6 in accordance with the present invention;

the utility model is further explained with the attached drawings.

The specific implementation mode is as follows:

the utility model discloses a concrete implementation mode is: referring to fig. 1, 2 and 3, the bicycle comprises a frame 3, a wheel 1, a wheel shaft 2, a pair of driving gears 9, a driving gear shaft 8, a driven gear shaft 10, a pair of driven gears 4, a pair of one-way gears 6 and pedals 7, wherein the wheel shaft 2 is connected with the wheel 1, the pair of one-way gears 6 are in a ratchet and pawl structure, referring to fig. 5, two ends of the wheel shaft 2 are connected with the frame 3, the driving gear shaft 8 is rotatably connected with the pair of driving gears 9, two end diameters of the driving gear shaft 8 are connected with the pedals 7, the driven gear shaft 10 is rotatably connected with the frame 3, two end diameters of the driven gear shaft 10 are fixed by a pair of driven gears 4 and a pair of pawl sleeves and bolts 5 on the one-way gears 6, the pair of driving gears 9 are meshed with the pair of one-way gears 6, referring to fig. 1, the pair of driven gears 4 are meshed with a gear ring 12 on the wheel 1;

referring to fig. 4 and 5, the wheel 1 includes a hub 13, a tire 11, and a gear ring 12, the hub 13, the gear ring 12 and the wheel shaft 2 are of an integral structure, the gear ring 12 is disposed on both sides of the hub 13, the tire 11 is connected to the outer circle of the hub 13, and the shaft diameters of both ends of the wheel shaft 2 are provided with a clamp spring groove 14;

referring to fig. 6 and 7, the frame 3 includes a frame beam 23, a front wheel fork sleeve 24, an oblique beam 25, a vertical beam 19, a rear wheel fork 18-1, a rear wheel fork 18-2, a sub-frame 29, a driving gear sleeve 26, a rear wheel sleeve 16 and a driven gear sleeve 20, the frame beam 23, the front wheel fork sleeve 24, the oblique beam 25, the vertical beam 19, the rear wheel fork 18-1, the rear wheel fork 18-2 and the sub-frame 29 form the frame 3, the junction of the vertical beam 19, the oblique beam 25 and the rear wheel fork 18-2 is connected with the driving gear sleeve 26, the junction of the rear wheel fork 18-1 and the rear wheel fork 18-2 is connected with the rear wheel sleeve 16, and the sub-frame 29 is connected with the driven gear sleeve 20;

referring to fig. 6 and 7, the pair of driving gear bushings 26, the pair of rear wheel bushings 16 and the pair of driven gear bushings 18 have

bearing chambers

21, 17 and 27 formed therein and engaged with the driving gear bushing 20, the pair of rear wheel axles 2 and the pair of driven gear bushings 10, the centers of the

bearing chambers

21, 17 and 27 are

shaft holes

28, 15 and 22 engaged with the driving gear shaft 8, the pair of wheel axles 2 and the pair of driven gear shafts 10, and referring to fig. 8, the driving gear bushings 26 have snap spring grooves 30 formed therein for fixing the driving gear shaft 8;

the utility model is realized as such, referring to fig. 1, fig. 2, fig. 3, when pedaling pedal 7 circularly clockwise by two feet when riding, a pair of driving gears 9 rotates clockwise, a pair of driving gears 9 meshes with a pair of one-way gears 6 to drive a pair of one-way gears 6 to rotate anticlockwise, at this time, pawls of the one-way gears 6 mesh with ratchet teeth to drive driven gears 4 to rotate anticlockwise synchronously, driven gears 4 mesh with gear rings 12 at both sides of wheel 1 to rotate clockwise, wheel 1 moves forward clockwise, when riding fast or stopping pedaling pedal 7 on road downhill, a pair of driving gears 9 stops rotating, at this time, because of inertia effect of bicycle and human body weight, wheel 1 continues to rotate clockwise to move forward, gear rings 12 at both sides of wheel 1 mesh with driven gears 4 to drive driven gears 4 to rotate anticlockwise, at this time, pawl shaft sleeves of a pair of one-way gears 6 also rotate along with anticlockwise, but not with the ratchet meshing of one-way gear 6, the ratchet does not change, at this moment a pair of one-way gear 6 does not follow driven gear 4 and rotates, the bicycle continues to lean on inertia to move ahead, inertia when the bicycle reduces, when the speed that moves ahead slows down, it drives a pair of driving gear 9 to step on pedal 7, a pair of one-way gear 6, at this moment a pair of one-way gear 6 drives driven gear shaft 10 and rotates, driven gear 4 rotates with the ring gear 12 meshing rotation of wheel 1 both sides, drive wheel 1 advances with higher speed, thereby realize the utility model discloses a function.

Claims

1. The utility model provides a gear drive bicycle, includes frame, wheel, axletree, a pair of driving gear, driving gear axle, driven gear axle, a pair of driven gear, a pair of one-way gear and pedal, characterized by: the wheel shaft is connected with a wheel, the pair of one-way gears are of a ratchet and pawl structure, two ends of the wheel shaft are connected with a frame, the driving gear shaft is rotatably connected with a pair of driving gears, two end shaft ends of the driving gear shaft are radially connected with pedals, the driven gear shaft is rotatably connected with the frame, two end diameters of the driven gear shaft are fixed by a pair of driven gears and pawl shaft sleeves and bolts on the pair of one-way gears, the pair of driving gears are meshed with the pair of one-way gears, and the pair of driven gears are meshed with gear rings on the wheel.

2. A gear driven bicycle according to claim 1, wherein: the wheel comprises a hub, a tire and gear rings, wherein the hub, the gear rings and a wheel shaft are of an integrated structure, the gear rings are arranged on two sides of the hub, the tire is connected to the excircle of the hub, and the shaft diameters of two ends of the wheel shaft are provided with clamp spring grooves.

3. A gear driven bicycle according to claim 1, wherein: the frame include frame roof beam, front wheel fork axle sleeve, sloping, found roof beam, two rear wheel forks, auxiliary vehicle roof beam, driving gear axle sleeve, rear wheel axle sleeve and driven gear axle sleeve, frame roof beam, front wheel fork axle sleeve, sloping, found roof beam, two rear wheel forks, auxiliary vehicle roof beam constitute the frame, the one end intersection of standing roof beam, sloping and two rear wheel forks connect driving gear axle sleeve, the other end intersection of two rear wheel forks connect the rear wheel axle sleeve, auxiliary vehicle roof beam connect driven gear axle sleeve.

4. A gear driven bicycle according to claim 1, wherein: the pair of driving gear shaft sleeves, the rear wheel shaft sleeve and the driven gear shaft sleeve are provided with bearing chambers in the driving gear shaft driven gear shaft sleeve, the rear wheel shaft sleeve and the driven gear shaft sleeve, the centers of the bearing chambers are shaft holes matched with the driving gear shaft, the wheel shaft and the driven gear shaft, and the driving gear shaft sleeve is provided with a clamp spring groove for fixing the driving gear shaft.