CN112158292A

CN112158292A - Chainless bicycle

Info

Publication number: CN112158292A
Application number: CN202011216829.7A
Authority: CN
Inventors: 纪光署
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-01-01

Abstract

The embodiment of the invention discloses a chainless bicycle, which comprises a frame, a front wheel, a rear wheel, a fixing device, flywheel gears, speed change reversing gear sets, swing arms, traction ropes and guide wheels, wherein the fixing device, the flywheel gears, the speed change reversing gear sets and the swing arms are respectively provided with 2 parts and are symmetrically arranged on two sides of the rear wheel, the flywheel gears are fixed on a shaft of the rear wheel, the fixing device is positioned on the outer side of the flywheel gears, one end of the fixing device is sleeved on the shaft of the rear wheel and is fixed on the frame of the rear wheel, the other end of the fixing device is positioned between a rear wheel shaft and pedals, the speed change reversing gear sets and the swing arms are both arranged on the fixing device, one end of each swing arm is provided with a gear, the gear is meshed with the speed change reversing gear sets, the pedals are arranged on the other ends of the swing. The bicycle does not need a chain in the part structure, overcomes the defects of the existing chain bicycle, and simultaneously ensures the riding safety.

Description

Chainless bicycle

Technical Field

The invention relates to the field of bicycles, in particular to a chainless bicycle.

Background

The existing bicycle with a chain on the market at present has the following defects: firstly, the chain sometimes falls off when the chain is ridden; secondly, the chain oiling easily pollutes clothes; thirdly, the chain wheel disc and the fixed tripod cause the bicycle to be overweight.

Disclosure of Invention

In view of this, the embodiment of the present invention provides a chainless bicycle, which solves the disadvantages of the existing bicycles.

The embodiment of the invention discloses a chainless bicycle, which comprises a frame, a front wheel, a rear wheel, a fixing device, a flywheel gear, a speed change reversing gear set, a swing arm, a traction rope and a guide wheel, wherein the fixing device, the flywheel gear, the speed change reversing gear set and the swing arm are all provided with 2 pieces which are symmetrically arranged at two sides of the rear wheel, the flywheel gear is fixed on a shaft of the rear wheel, the fixing device is positioned at one side of the flywheel gear, one end of the fixing device is sleeved on the shaft of the rear wheel and is fixed on a frame beside the rear wheel, the other end of the fixing device is positioned between a rear wheel shaft and pedals, the speed change reversing gear set and the swing arm are both arranged on the fixing device, one end of the swing arm is provided with a gear which is meshed with the speed change reversing gear set, the speed change reversing gear set is meshed with the flywheel gear, the other, the guide wheel is arranged on the frame.

Furthermore, the swing arm, a limit bearing of the swing arm and the speed change reversing gear set are all arranged in the fixing device, the pivot of the swing arm is the joint of the swing arm and the fixing device through the bearing, and the pivot is located between the rear wheel shaft and the outer ring of the rear wheel.

Furthermore, an arc-shaped groove is formed in a gear of the swing arm, the limiting bearing is located in the arc-shaped groove, and a fixing shaft of the limiting bearing is fixed on the fixing device.

Further, the gear side of the swing arm is in a fan-shaped structure, and the upper part of the gear side of the swing arm is not provided with teeth.

Further, the guide wheel is mounted on a guide wheel mounting bracket which is located below the saddle of the bicycle.

The embodiment of the invention provides a chainless bicycle, wherein a part structure does not need a chain, so that the defects of the conventional chain bicycle are overcome, and the riding safety is ensured.

Drawings

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a partial schematic view of an embodiment of the present invention.

Fig. 3 is another partial schematic view of an embodiment of the invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the invention discloses a chainless bicycle, which comprises a frame 8, a front wheel 11, a rear wheel 9, a fixing device 2, a flywheel gear 1, a speed-changing reversing gear set 3, a swing arm 4, a traction rope 5 and a guide wheel 6, wherein the fixing device 2, the flywheel gear 1, the speed-changing reversing gear set 3 and the swing arm 4 are respectively provided with 2 and symmetrically arranged at two sides of the rear wheel 9, the flywheel gear 1 is fixed on a shaft of the rear wheel 9, the fixing device 2 is positioned at the outer side of the flywheel gear 1, one end of the fixing device 2 is sleeved on the shaft of the rear wheel 9 and fixed on the frame of the rear wheel, the other end of the fixing device is positioned between a rear wheel shaft and a pedal 13, the speed-changing reversing gear set 3 and the swing arm 4 are both arranged on the fixing device 2, one end of the swing arm 4 is provided with a gear 12, the gear 12 is meshed with the speed-changing reversing gear set 3, one side of the swing arm 4 is connected with a traction rope, the traction rope 5 is sleeved on a guide wheel, and the guide wheel 6 is arranged on a frame 8. The guide wheel plays the effect of fixed pulley, and when stepping on one of them footboard, the haulage rope pulls up the footboard of opposite side through the guide wheel, and then pulls up the swing arm of opposite side.

The pulling rope is used for pulling up the other swinging arm to replace the pedal structure of the traditional bicycle. And a gear transmission mode is adopted to replace a chain transmission mode.

The gear change reversing gear set, which is not described in detail herein, functions as a transmission.

In one embodiment of the invention, the swing arm, the limit bearing 7 of the swing arm and the speed change reversing gear set are all arranged in the fixing device, an arc-shaped groove is arranged in the swing arm gear structure, the limit bearing is arranged in the fixing device, and the limit bearing is positioned in the arc-shaped groove.

The limiting bearing plays a limiting role, when the pedal is stepped on, the swing arm end of the stepped-on part descends, the other swing arm ascends, when the swing arm 4 is stepped on to a certain height by a foot, the limiting bearing of the fixing device limits the swing arm, and even if a single foot of a person stands on the pedal, the pedal cannot descend, so that the riding safety is guaranteed.

In an embodiment of the invention, the pivot of the swing arm is located at the joint of the swing arm and the fixing device, and the pivot is located between the axle center of the rear wheel and the foremost end of the rear wheel.

In one embodiment of the invention, the gear side of the swing arm is in a fan-shaped structure, and the upper part of the gear side of the swing arm is not provided with teeth, namely, the teeth of the gears of the swing arm extend from the lower end of the gear to the position below the vertex of the upper end. Referring to fig. 3, the upper end of the gear 12 in fig. 3 has no teeth, when the pedal on the swing arm is driven to a certain height by the swing arm on the other side, the gear of the swing arm enters the vacant position, and the gear 12 has no teeth, so the gear set for speed change and direction change cannot be engaged, and at this time, the gear set for speed change and direction change 3 idles, and the swing arm stops moving upwards. When the bicycle backs and reverses, the mechanism ensures that the bicycle can continue to back without being influenced.

The limit bearing blocks the arc groove of the swing arm, and the gear shifting and reversing gear laterally sticks to the side surface of the swing arm to form a swing arm deviation prevention limit mechanism, so that the swing arm is prevented from deviating left and right when riding.

In one embodiment of the present invention, the jockey wheel is mounted on a jockey wheel mount that is located below the saddle 10 of the bicycle.

The above description is only a preferred embodiment of the present invention, but other driving mechanisms including, but not limited to, motor driving and other driving sources are not intended to limit the present invention, and any modifications, equivalents and the like within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A chainless bicycle comprises a frame, a front wheel and a rear wheel, and is characterized by also comprising a fixing device, flywheel gears, speed change reversing gear sets, swing arms, traction ropes and guide wheels, wherein the fixing device, the flywheel gears, the speed change reversing gear sets and the swing arms are respectively provided with 2 parts and symmetrically arranged on two sides of the rear wheel, the flywheel gears are fixed on a shaft of the rear wheel, the fixing device is positioned on one side of the flywheel gears, one end of the fixing device is sleeved on the shaft of the rear wheel and fixed on the frame beside the rear wheel, the other end of the fixing device is positioned between the rear wheel shaft and pedals, the speed change reversing gear sets and the swing arms are both arranged on the fixing device, one end of the swing arms is provided with gears which are meshed with the speed change reversing gear sets, the speed change reversing gear sets are meshed with the flywheel gears, the pedals are arranged on the other ends of the swing, the guide wheel is arranged on the frame.

2. The chainless bicycle of claim 1, wherein the swing arm, a limit bearing of the swing arm, and the speed change reversing gear set are mounted in a fixing device, a fulcrum of the swing arm is a joint of the swing arm and the fixing device through the bearing, and the fulcrum is located between the rear wheel axle and the outer ring of the rear wheel.

3. The chainless bicycle of claim 2, wherein the gear of the swing arm has an arc-shaped recess formed therein, the limit bearing is disposed in the arc-shaped recess, and a fixing shaft of the limit bearing is fixed to the fixing means.

4. The chainless bicycle of claim 1, wherein the gear side of the swing arm has a fan-shaped configuration and an upper portion of the gear side of the swing arm has no teeth.

5. The chainless bicycle of claim 1, wherein the guide pulley is mounted to a guide pulley mount that is positioned below a seat of the bicycle.