CN202368749U

CN202368749U - Double-chain wheel speed-up bicycle driving device

Info

Publication number: CN202368749U
Application number: CN2011205032886U
Authority: CN
Inventors: 李金玲
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-07
Filing date: 2011-12-07
Publication date: 2012-08-08
Anticipated expiration: 2021-12-07

Abstract

The utility model discloses a double-chain wheel speed-up bicycle driving device. A frame (16) is provided with a main shaft (17) and a driving shaft (21); a foot pedal (2) and a fan wheel (6) are coaxially arranged on the two sides of the main shaft (17) respectively; one end of the outer edge of the fan wheel (6) is hinged with a cambered chain wheel (5); ratchets (9) are coaxially arranged on the two sides of the driving shaft (21) respectively; and the cambered chain wheel (5) and the ratchet (9) on the same side are connected by a chain (7). By using double-side double-chain wheel unidirectional radian rotation, quick driving and quick speeding up are realized, the pedal travel is effectively shortened, the labor is saved, the operation and the control are convenient, the effect is obvious, the working efficiency is high, and safety and reliability are realized.

Description

The bicycle speed-increased actuating device of double-stranded wheel

Technical field

The utility model belongs to the bicycle speed-increased actuating device of a kind of double-stranded wheel.

Background technology

The circulation of alternately taking turns in the same way of existing bicycle bilateral stretcher 180 radians that stagger, both feet is stepped on through sprocket wheel and is driven the drive wheel walking, because pedal stroke is longer, and the transmission system complicacy, it is bigger to require great effort, and is easy to fatigue, the difficulty of riding.

Summary of the invention

The purpose of the utility model provides the bicycle speed-increased actuating device of a kind of double-stranded wheel.

The goal of the invention measure that realizes the utility model is: main shaft and axle drive shaft are installed on the vehicle frame; Both sides coaxial installation pedal of difference and impeller on the main shaft; The hinged arc dress of impeller outer rim one end sprocket wheel, axle drive shaft both sides are respectively with the axle mounting ratchet, and homonymy arc dress sprocket wheel is connected with chain respectively with ratchet.

The advantage of the utility model is, adopts the unidirectional radian of the double-stranded wheel of bilateral to rotate, and realizes the simultaneously quick speedup of fast driving, and pedal stroke effectively shortens, and laborsaving controlling makes things convenient for effect remarkable, and high efficiency is safe and reliable.

Description of drawings

Fig. 1 is the structural representation of the utility model

Fig. 2 is the plan structure scheme drawing of Fig. 1

Reference numeral comprises: stretcher 1, pedal 2, upper limit device 3, hinge pin 4, arc dress sprocket wheel 5, impeller 6, chain 7, drive wheel 8, ratchet 9, extension arm 10, lower caging device 11, fixed link 12, pressure spring slot 13, support spring 14; Pedal return spring 15, vehicle frame 16, main shaft 17; Bearing 18; Flywheel 19, chain tightens spring 20, axle drive shaft 21.

The specific embodiment

Below in conjunction with specific embodiment, describe:

Main shaft 17 and axle drive shaft 21 are installed on the vehicle frame 16; Respectively coaxial installation pedal 2 in both sides and impeller 6 on the main shaft 17; The hinged arc dress of impeller 6 outer rims one end sprocket wheel 5, axle drive shaft 21 both sides are respectively with axle mounting ratchet 9, and homonymy arc dress sprocket wheel 5 is connected with chain 7 respectively with ratchet 9.

Coaxial installing drive wheel 8 on the axle drive shaft 21.Drive wheel 8 can be front-wheel or trailing wheel.

Both sides pedal 2 is installed with angle.

Both sides pedal 2 outer ends are hinged stretcher 1 respectively.

Chain 7 one ends are hinged with arc dress sprocket wheel 5 through hinge pin 4, and the other end is walked around ratchet 9 backs and is fixed on impeller 6 opposite sides through chain tightens spring 20.Impeller 6 downsides connect hangs arm 10, and chain tightens spring 20 is fixed on hangs arm 10 outer ends.

Be that upper and lower correspondence position on the vehicle frame 16 of mid point is provided with and is used to stop that pedal 2 is to drive wheel 8 anti-upper limit devices 3 and lower caging devices 11 to inordinate rotation with main shaft 1; With main shaft 1 be between center of circle upper limit device 3 and lower caging device 11 and this circle center line connecting angle less than 180 °, especially with main shaft 1 be between center of circle upper limit device 3 and lower caging device 11 and this circle center line connecting angle less than 140 °.

Impeller 6 outer rims middle part and 5 on sprocket wheel of arc dress install and fix bar 12, pressure spring slot 13 and support spring 14; There is pressure spring slot 13 at impeller 6 outer rims middle part; Fixed link 12 upper ends are hinged on arc dress sprocket wheel 5 inboards; Fixed link 12 lower ends penetrate pressure spring slot 13 bottoms, and support spring 14 upper ends are close to arc dress sprocket wheel 5 inwalls, and the lower end embedding is sitting in the pressure spring slot 13.

Pedal return spring 15 is installed on the pedal 2, and pedal return spring 15 is installed on the main shaft 17 for torsion spring; Perhaps, pedal return spring 15 is extension spring, and pedal return spring 15 1 ends are fixed on the vehicle frame 16 of 8 of main shaft 17 and drive wheels, and pedal return spring 15 other ends are fixed on the pedal 2.Pedal return spring 15 keeps pedal 2 often to be in main shaft 1 top position.

Main shaft 17 two ends are respectively through bearing 18 and 6 coaxial connections of impeller.

On the drive wheel 8, ratchet 9 and flywheel 19 same axle mountings.

During the utility model used, a side or bilateral were stepped on stretcher 1, and pedal 2 leaves upper limit device 3; Drive impeller 6 and rotate, drive arc dress sprocket wheel 5 simultaneously and rotate, and further drive drive wheel 8 through ratchet 9; At this moment owing to the effect of chain tightens spring 20, chain 7 is tightened and is pressed down arc dress sprocket wheel 5, but simultaneously owing to push up on the support spring 14; Make chain 7 transmitting ratios change, realize driving speedup simultaneously; When pedal 2 turns to the below and when arriving to lower caging device 11, stops to step on, pedal 2 upwards rotates and finally stops at upper limit device 3 sides down in 15 effects of pedal return spring.

The utility model can a top-cross for stepping on or bilateral is stepped on maintenance axle drive shaft 21 simultaneously and constantly obtained moment of torsion.

In above embodiment, do not reach the safety of narration, and field engineering, and the employing prior aries such as other necessary technologies that relate to enforcement, enumerate detailed description no longer successively.

Claims

1. the bicycle speed-increased actuating device of double-stranded wheel; It is characterized in that; Vehicle frame (16) is gone up main shaft (17) and axle drive shaft (21) is installed, and main shaft (17) is gone up both sides coaxial installation pedal (2) and impeller (6) respectively, the hinged arc dress of impeller (6) outer rim one end sprocket wheel (5); Axle drive shaft (21) both sides are respectively with axle mounting ratchet (9), and homonymy arc dress sprocket wheel (5) is connected with chain (7) respectively with ratchet (9).

2. the bicycle speed-increased actuating device of double-stranded wheel as claimed in claim 1 is characterized in that both sides pedal (2) is installed with angle.

3. the bicycle speed-increased actuating device of double-stranded wheel as claimed in claim 1 is characterized in that both sides pedal (2) outer end is hinged stretcher (1) respectively.

4. the bicycle speed-increased actuating device of double-stranded wheel as claimed in claim 1; It is characterized in that; Chain (7) one ends are hinged with arc dress sprocket wheel (5) through hinge pin (4); The other end is walked around ratchet (9) back and is fixed on impeller (6) opposite side through chain tightens spring (20), and impeller (6) downside connects hangs arm (10), and chain tightens spring (20) is fixed on hangs arm (10) outer end.

5. the bicycle speed-increased actuating device of double-stranded wheel as claimed in claim 1; It is characterized in that; Be that upper and lower correspondence position on the vehicle frame (16) of mid point is provided with and is used to stop pedal (2) to drive wheel (8) anti-upper limit device (3) and lower caging device (11) to inordinate rotation with main shaft (1), with main shaft (1) be between center of circle upper limit device (3) and lower caging device (11) and this circle center line connecting angle less than 180 °.

6. the bicycle speed-increased actuating device of double-stranded wheel as claimed in claim 1; It is characterized in that install and fix bar (12), pressure spring slot (13) and support spring (14) between impeller (6) outer rim middle part and arc dress sprocket wheel (5), there is pressure spring slot (13) at impeller (6) outer rim middle part; Fixed link (12) upper end is hinged on arc dress sprocket wheel (5) inboard; Fixed link (12) lower end penetrates pressure spring slot (13) bottom, and support spring (14) upper end is close to arc dress sprocket wheel (5) inwall, and the lower end embedding is sitting in the pressure spring slot (13).

7. the bicycle speed-increased actuating device of double-stranded wheel as claimed in claim 1 is characterized in that pedal return spring (15) is installed on the pedal (2), and pedal return spring (15) is installed on the main shaft (17) for torsion spring; Perhaps, pedal return spring (15) is extension spring, and pedal return spring (15) one ends are fixed on the vehicle frame (16) between main shaft (17) and drive wheel (8), and pedal return spring (15) other end is fixed on the pedal (2).

8. the bicycle speed-increased actuating device of double-stranded wheel as claimed in claim 1 is characterized in that main shaft (17) two ends are respectively through bearing (18) and coaxial connection of impeller (6).

9. the bicycle speed-increased actuating device of double-stranded wheel as claimed in claim 1 is characterized in that, on the drive wheel (8), and ratchet (9) and the same axle mounting of flywheel (19).