WO2017210919A1

WO2017210919A1 - Transmission mechanism of bicycle and bicycle comprising transmission mechanism

Info

Publication number: WO2017210919A1
Application number: PCT/CN2016/086339
Authority: WO
Inventors: 赵洪亮
Original assignee: 赵洪亮
Priority date: 2016-06-08
Filing date: 2016-06-19
Publication date: 2017-12-14

Abstract

Disclosed are transmission mechanisms (1, 2) of a bicycle and a bicycle comprising the transmission mechanisms (1, 2). The transmission mechanisms (1, 2) are fixed on a frame of the bicycle, and by means of pedalling foot bars (28) at both sides of the frame of the bicycle via an external force and by means of crank devices (13, 23), a wheel (16) of the bicycle is driven to rotate. The transmission mechanisms (1, 2) comprise: connecting rods (17, 27) perpendicular to a plane of the frame of the bicycle, wherein two free ends, at left and right sides, are connected to the crank devices (13, 23), and the crank devices (13, 23) are rotated clockwise and backwards under the action of the foot bars (28); first gears (12, 22), which are perpendicularly fixed on the connecting rods (17, 27), coaxially fixed with and synchronously rotate with the connecting rods (17, 27); second gears (11, 21) connected to the first gears (12, 22) and rotating anticlockwise and reversely; and flywheels (15, 25), which are connected to the second gears (11, 21) via chains (14, 24), are coaxially connected to the wheel (16), and drive the wheel (16) to rotate. Planes of the flywheels (15, 25) and the second gears (11, 21) are in the same plane. The transmission mechanisms (1, 2) help a user save more physical strength when using the bicycle.

Description

Transmission mechanism of bicycle and bicycle including the same

[0001] The present invention relates to a transmission mechanism, and more particularly to a transmission mechanism for a bicycle and a bicycle including the transmission mechanism.

Background technique

[0002] The structure of the existing bicycle mainly drives the transmission shaft by the pedal, and then the gear of the same axis as the transmission shaft drives the rear wheel gear via the chain, and then the rear wheel gear drives the rear wheel, thereby causing the bicycle to travel forward. This is the driving structure of the traditional bicycle. The source of power relied on pedals from people's feet, which can easily cause excessive physical exertion when going uphill or bumpy.

[0003] Therefore, in view of the problems occurring in the above-described conventional bicycle, a labor-saving bicycle and a transmission mechanism thereof have been proposed, and it has become an urgent problem to be solved.

technical problem

In order to overcome the disadvantages of the prior art described above, it is an object of the present invention to provide a transmission mechanism for a labor-saving bicycle.

It is still another object of the present invention to provide a bicycle including the transmission mechanism.

Problem solution

Technical solution

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A first aspect of the present invention provides a bicycle transmission mechanism that is fixed to a frame of the bicycle, and pedals the wheel of the bicycle by externally pedaling a pedal and a crank device on both sides of the bicycle frame. The transmission mechanism includes:

[0008] a connecting rod, perpendicular to the plane of the frame, the left and right free ends are connected to the crank device, and the crank device rotates backwards and forwards under the action of the stepping rod;

[0009] a first gear, vertically fixed to the connecting rod, coaxially fixed with the connecting rod, and synchronously rotated;

[0010] a second gear, coupled to the first gear, and reversely rotating the counterpin;

[0011] a flywheel is connected to the second gear through a chain, coaxially connected with the wheel, and drives the wheel to rotate. The plane of the flywheel is on the same plane as the second gear.

Further preferably, the second gear is at a front end of the first gear, and the flywheel is fixed to a rear wheel of the bicycle.

[0013] Further preferably, the first gear is not connected to a chain connecting the second gear and the flywheel.

In a preferred embodiment, the second gear is directly meshed with the first gear and is in the same plane as the first gear.

[0015] In another preferred embodiment, the second gear and the first gear are connected by a third gear, and the third gear is directly meshed with the first gear, and is coupled to the first The gears are on the same plane, and the third gear and the second gear are parallel and coaxially fixed and synchronously rotated.

[0016] Further preferably, the crank rotates backwards under the action of the pedal, and the second gear connected to the first fixed coaxial gear is reversely rotated forward, and the flywheel is rotated forward by the chain to make the flywheel rotate forward. The rear wheel travels forward.

[0017] A second aspect of the invention provides a bicycle of the transmission mechanism as described above.

[0018] Optionally, the bicycle further includes a foot pedal, a shock absorber, and a handlebar device.

[0019] Optionally, the shock absorber is located in the middle of the frame, and includes a positioning seat and a rod passing through the positioning seat

a sleeve sleeved on the rod, a spring disposed outside the sleeve, and abutting portion at the front end of the rod.

[0020] Optionally, the handlebar device includes a left handlebar and a right handlebar, and is coupled to the frame by a T-shaped upright, and the left handlebar and the right handlebar are foldable relative to the upright.

Advantageous effects of the invention

Beneficial effect

[0021] The present invention adopts the above technical solution, and has the following technical effects compared with the prior art:

[0022] The transmission mechanism of the bicycle provided by the invention has a relatively labor-saving mechanism, so that the user can save physical strength during use.

Brief description of the drawing

DRAWINGS

1 is a schematic structural view of a preferred embodiment of a transmission mechanism of a bicycle according to the present invention;

2 is a side elevational view showing the relative positions of the first gear 12, the second gear 11 and the flywheel 15 of FIG. 1; [0025] FIG. 3 is another preferred embodiment of the transmission mechanism of the bicycle according to the present invention. Schematic diagram of the structure; 4 is a schematic structural view of a bicycle using the transmission mechanism shown in FIG. 3;

5 is a schematic structural view of a shock absorber on the bicycle shown in FIG. 4;

6 is a schematic structural view of a handlebar device on the bicycle shown in FIG. 4.

BEST MODE FOR CARRYING OUT THE INVENTION

[0029] The present invention will be described in detail and by way of specific examples in order to provide a better understanding of the invention.

However, the following examples do not limit the scope of the invention.

[0030] He

[0031] As shown in FIG. 1 , the embodiment provides a transmission mechanism 1 for a bicycle, which is fixed on a frame of the bicycle, and pedals the bicycle and the crank device 13 on both sides of the bicycle frame by external force to drive the bicycle. The wheel of the wheel rotates, and the transmission mechanism 1 comprises:

[0032] the connecting rod 17, perpendicular to the plane of the frame, the left and right free ends are connected to the crank device 13, and the crank device 13 is rotated backward by the action of the stepping lever;

[0033] The first gear 12 is vertically fixed to the connecting rod 17, coaxially fixed with the connecting rod 17, and synchronously rotated;

[0034] The second gear 11 is directly meshed with the first gear 12, and the plane of the second gear 11 is in the same plane as the first gear 12;

[0035] The flywheel 15 is connected to the second gear 11 via a chain 14, coaxially connected to the wheel 16, and drives the wheel

16 is rotated, the plane of the flywheel 15 being in the same plane as the second gear 11.

Further preferably, the second gear 11 is at the front end of the first gear 12, and the flywheel 15 is fixed to the rear wheel 16 of the bicycle.

Further preferably, as shown in FIG. 2, the first gear 12 is not connected to the chain 14 connecting the second gear 11 and the flywheel 15.

[0038] Further preferably, the crank 13 rotates backwards under the action of the pedal, and the coaxially fixed first gear 12 meshes with the second gear 11 to rotate forwardly against the hammer, and is driven by the chain 14 The flywheel 15 rotates forward, causing the rear wheel 16 to travel forward.

[0039]

Embodiment 2 [0041] As shown in FIG. 3, the embodiment provides a transmission mechanism 2 for a bicycle, which is fixed on the frame of the bicycle, and is driven by an external force to step on the pedal lever 28 and the crank device 23 on both sides of the bicycle frame. The wheel of the bicycle rotates, and the transmission mechanism 2 includes:

[0042] The connecting rod 27 is perpendicular to the plane of the frame, and the left and right free ends are connected to the crank device 23, and the crank device 23 is rotated backward by the stepping lever 28;

[0043] The first gear 22 is vertically fixed to the connecting rod 27, coaxially fixed with the connecting rod 27, and synchronously rotated;

[0044] a second gear 21, the second gear 21 and the first gear 22 are connected by a third gear 20, the third gear 20 directly meshes with the first gear 22, and The first gear 22 is on the same plane, and the third gear 20 and the second gear 21 are parallel and coaxially fixed and synchronously rotated.

[0045] The flywheel 25 is connected to the second gear 21 via a chain 24, coaxially connected to the wheel 26, and drives the wheel 26 to rotate. The plane of the flywheel 25 is on the same plane as the second gear 21.

Further preferably, the left and right two step bars 28 are fixed to the support shaft 29.

Further preferably, the second gear 21 is at the front end of the first gear 22, and the flywheel 25 is fixed to the rear wheel 26 of the bicycle.

[0048] Further preferably, the crank 23 rotates backwards under the action of the pedal, and the second gear 21 connected to the coaxially fixed first gear 22 rotates backwards against the boring needle, through the chain. 14 drives the flywheel 15 to rotate forward, causing the rear wheel 16 to travel forward.

[0049]

Embodiment 3

As shown in FIG. 4, the present embodiment provides a bicycle including the above-described transmission mechanism 2.

[0052] The bicycle further includes a footboard 3, a suspension device 4, and a handlebar device 5.

[0053] As shown in FIG. 5, the shock absorber 4 is preferably located in the middle of the frame, and includes a positioning base 42, a pull rod 41 passing through the positioning base 42, and a sleeve 43 sleeved on the pull rod 41. A spring 44 outside the sleeve 43 and an abutment portion 45 at the front end of the tie rod 41. The rear end of the pull rod 41 is provided with a fixing hole 41a for fixing to the frame. The front end of the pull rod 41 is provided with an external thread 41b. The abutting portion 45 includes a nut 45a and a resisting washer 45b for the front end of the pull rod 41. The nut 45a is screwed after passing through the abutting spacer 45b. The spring 44 passes through the exterior of the sleeve 43 and the length of the sleeve 43 is greater than the length of the fully compressed jaw of the spring 44. [0054] As shown in FIG. 6, a preferred handlebar device 5, optionally, the handlebar device 5 is foldable, including a left handlebar 51 and a right handlebar 52, connected to the frame by a T-shaped upright 53 The left handlebar 51 and the right handlebar 52 are foldable relative to the upright 53. The T-shaped left and right ends of the upright 53 and the contact faces of the left and right handlebars 51, 52 have a taper parallel to the ground. The teeth 55 are used to ensure that the left and right handlebars are not moved or rotated relative to the uprights 53. The handlebar is locked by a handle 54 on the pole 53. Further preferably, a through groove 56 is provided in the left and right handlebars 51, 52 at the connection with the T-shaped upright 53 so that the folded weir is pulled toward the top end of the through groove 56 and spread to the bottom end of the through groove 56. Push.

[0055] The transmission mechanism of the bicycle provided by the invention has a relatively labor-saving mechanism, so that the user can save physical strength after using the cymbal.

The specific embodiments of the present invention have been described in detail above, but by way of example only, the invention is not limited to the specific embodiments described above. Any equivalent modifications and substitutions of the present invention are also within the scope of the invention. Accordingly, equivalent changes and modifications may be made without departing from the spirit and scope of the invention.

Claims

Claim

A transmission mechanism of a bicycle is fixed on a frame of the bicycle, and the pedals and the crank device located on both sides of the bicycle frame are externally driven to rotate the wheels of the bicycle. The transmission mechanism includes:

a connecting rod, perpendicular to the plane of the frame, the left and right free ends are connected to the crank device, and the crank device rotates backwards and forwards under the action of the stepping bar; the first gear is vertically fixed to the connecting rod Upper, coaxially fixed with the connecting rod, and synchronously rotated;

a second gear coupled to the first gear and rotated in opposite directions;

The flywheel is connected to the second gear through a chain, coaxially connected with the wheel, and drives the wheel to rotate. The plane of the flywheel is on the same plane as the second gear.

A transmission mechanism for a bicycle according to claim 1, wherein said second gear is at a front end of said first gear, and said flywheel is fixed to a rear wheel of the bicycle. A transmission mechanism for a bicycle according to claim 2, wherein said first gear is not coupled to a chain connecting said second gear and the flywheel.

A transmission mechanism for a bicycle according to claim 3, wherein said second gear is directly meshed with said first gear and is in the same plane as said first gear

[Claim 5] The transmission mechanism of the bicycle according to claim 3, wherein the second gear and the first gear are connected by a third gear, the third gear and the The first gear is directly meshed and is in the same plane as the first gear, and the third gear and the second gear are parallel and coaxially fixed and synchronously rotated.

[Claim 6] The transmission mechanism of the bicycle according to claim 3, wherein the crank is rotated backward by the action of the pedal, and the second gear of the coaxially fixed first gear is reversed The counter-rotation needle rotates forward, and the flywheel is rotated forward by the chain to advance the rear wheel.

[Claim 7] A bicycle comprising the transmission mechanism according to any one of claims 1-6.