CN213008597U

CN213008597U - Power-saving bicycle

Info

Publication number: CN213008597U
Application number: CN202021956949.6U
Authority: CN
Inventors: 徐书平
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2021-04-20
Anticipated expiration: 2030-09-09

Abstract

The utility model relates to a labor-saving bicycle, including frame spandrel girder, chain wheel and wear to establish the pivot on the chain wheel, install three group's buffering chain supporting devices on the chain wheel at least, buffering chain supporting device includes stop sleeve, one-way flywheel and installs the resilient means in stop sleeve, and resilient means rotates with one-way flywheel to be connected, and one-way flywheel passes through the driving medium transmission with the sprocket of rear wheel. The utility model relates to a labor-saving bicycle, according to riding passerby and stepping on the size in the pedal hard, the distance of one-way flywheel and pivot on the flexible chain wheel to make laborsaving bicycle reach laborsaving purpose, make bicycle starting, go up and down a slope more comfortable and reliable.

Description

Power-saving bicycle

Technical Field

The utility model relates to a bicycle technical field specifically indicates a laborsaving bicycle.

Background

The bicycle is one of the most popular transportation tools, and is continuously updated in recent years, the traditional bicycle is hard transmission of a chain, and the gear can not be changed according to the actual road condition to save labor; the speed-changing bicycle realizes various speed changes by flywheels with different tooth numbers and a chain engaged with the flywheels by a shifting fork, but the speed-changing bicycle saves labor and work, can not cope with different road conditions at any time, and achieves the effect of saving labor by the force of a rider.

SUMMERY OF THE UTILITY MODEL

For solving not enough among the prior art, the utility model provides a laborsaving bicycle can step on the size in the pedal hard according to riding passerby, and the distance of one-way flywheel and pivot on the flexible or extension chain wheel to make laborsaving bicycle reach laborsaving purpose, and still through electrodeless speed governing, make bicycle starting, go up and down the slope safe comfortable more and reliable.

The utility model discloses a realize above-mentioned purpose, realize through following technical scheme: the utility model provides a labor-saving bicycle, includes frame spandrel girder, chain wheel and wears to establish the pivot on the chain wheel, installs three group's buffering chain supporting devices on the chain wheel at least, and buffering chain supporting device includes spacing sleeve, one-way flywheel and installs the resilient means in spacing sleeve, and resilient means extends to the spacing sleeve outside and rotates with one-way flywheel to be connected, and one-way flywheel passes through the driving medium transmission with the sprocket of rear wheel.

The buffering chain supporting device is provided with the one-way flywheels, the three groups of buffering chain supporting devices are arranged at least, so that the plurality of one-way flywheels can be meshed with the transmission part, the rear wheel can be driven to rotate conveniently, the buffering chain supporting devices are used for changing the distance between the plurality of one-way flywheels and the rotating shaft according to the force applied to the pedal by a rider, the distance is reduced when the rider applies force to an uphill, and the labor-saving effect is achieved.

Preferably, the elastic device comprises a square shaft penetrating through the limiting sleeve and a compression spring sleeved on the square shaft, one end of the compression spring, which is far away from the unidirectional flywheel, is fixedly connected in the limiting sleeve, a lower pressing block is fixedly arranged on the square shaft in the limiting sleeve, and the lower pressing block is positioned between the compression spring and the flywheel.

The square shaft is provided with a hole at one end close to the unidirectional flywheel, a pin shaft is arranged in the hole and is used for being rotationally connected with the unidirectional flywheel, the square shaft is firm and durable, the lower pressing block is used for compressing a compression spring in the limiting sleeve, the compression spring is reset when going downhill, and the distance between the unidirectional flywheel and the rotating shaft is increased.

Preferably, a chain shifting wheel is arranged on the frame bearing beam and meshed with the transmission part, a connecting rod is connected between a shaft of the chain shifting wheel and a shaft of the rear chain wheel and respectively hinged with the chain shifting wheel and the rear chain wheel, and a return spring is arranged between the connecting rod close to one end of the chain shifting wheel and the frame bearing beam.

When one-way flywheel pushed down, the driving medium can relax, is used for supporting the driving medium through dialling sprocket and reset spring and prevents that driving medium and one-way flywheel or driving medium and back sprocket from appearing the phenomenon that breaks away from.

Preferably, the elastic devices provided with the unidirectional flywheels are distributed along the axis of the rotating shaft, and the motion tracks of the unidirectional flywheels are coaxial with the rotating shaft.

The elastic devices are distributed along the axis of the rotating shaft, so that the unidirectional flywheel and the transmission part can be conveniently meshed, and the phenomenon of chain dropping is reduced.

Preferably, the two ends of the limiting sleeve are provided with guide cylinders matched with the square shafts, and the square shafts penetrate through the two guide cylinders.

The guide cylinder plays a role in guiding the square shaft, and the square shaft is prevented from shaking in the limiting sleeve to influence the downward movement or rotation of the unidirectional flywheel.

Preferably, the transmission member is a chain or a belt.

Contrast prior art, the beneficial effects of the utility model reside in that: the one-way flywheel is arranged on the buffering chain supporting device, the distance between the one-way flywheel and the rotating shaft is changed by the elasticity of the spring, and the bicycle is safer, more comfortable and more reliable in starting and climbing.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged schematic view of the point A of FIG. 1 according to the present invention;

FIG. 3 is a schematic structural view of the buffering drag chain device of the present invention;

reference numerals shown in the drawings: 1. a frame spandrel girder; 2. a limiting sleeve; 3. a transmission member; 4. a chain wheel; 5. a rotating shaft; 6. A unidirectional flywheel; 7. a guide cylinder; 8. pressing the block; 9. a square shaft; 10. a compression spring; 11. a return spring; 12. a chain pulling wheel; 13. a connecting rod; 14. a rear sprocket.

Detailed Description

According to the specific embodiment, further explain the utility model discloses, as shown in fig. 1~3, a laborsaving bicycle, including frame spandrel girder 1, the front wheel, the rear wheel, chain wheel 4 and wear to establish pivot 5 on chain wheel 4, install four group's buffering chain supporting devices on the chain wheel 4, buffering chain supporting device includes stop collar 2, one-way flywheel 6 and the resilient means who installs in stop collar 2, install one-way flywheel 6 on the buffering chain supporting device, through setting up four group's buffering chain supporting devices, make a plurality of one-way flywheels 6 can mesh with driving medium 3, be convenient for drive the rear wheel and rotate. The elastic device extends to the outer side of the limiting sleeve 2 and is rotationally connected with the unidirectional flywheel 6, and the unidirectional flywheel 6 and a chain wheel of the rear wheel are driven by the driving part 3. The transmission part 3 is a chain or a belt and can be selected according to actual conditions.

The elastic device comprises a square shaft 9 penetrating through the limiting sleeve 2 and a compression spring 10 sleeved on the square shaft 9, one end, far away from the unidirectional flywheel 6, of the compression spring 10 is fixedly connected into the limiting sleeve 2, a lower pressing block 8 is fixedly arranged on the square shaft 9 located in the limiting sleeve 2, and the lower pressing block 8 is located between the compression spring 10 and the flywheel. One end of the square shaft 9 close to the unidirectional flywheel 6 is provided with a hole, a pin shaft is arranged in the hole and is used for being rotationally connected with the unidirectional flywheel 6, the square shaft 9 is firm and durable, the lower pressing block 8 is used for compressing the compression spring 10 in the limiting sleeve 2, the compression spring 10 resets when going downhill, and the distance between the unidirectional flywheel 6 and the rotating shaft 5 is increased.

The frame spandrel girder is provided with a chain shifting wheel 12, the chain shifting wheel 12 is meshed on the inner side of the transmission part 3, a connecting rod 13 is connected between the shaft of the chain shifting wheel 12 and the shaft of the rear chain wheel 14, the connecting rod 13 is respectively hinged with the chain shifting wheel 12 and the rear chain wheel 14, and a return spring 11 is arranged between the connecting rod 13 close to one end of the chain shifting wheel and the frame spandrel girder 1. When the one-way flywheel 6 is pressed down, the transmission piece 3 is loosened, and the phenomenon that the transmission piece 3 and the one-way flywheel 6 or the transmission piece 3 and the rear chain wheel 14 are separated is prevented by the driving chain wheel 12 and the return spring 11 which are used for supporting the transmission piece 3.

The both ends of spacing sleeve 2 are provided with the guide cylinder 7 with square axle 9 adaptation, and square axle 9 wears to establish in guide cylinder 7, and guide cylinder 7 plays the effect of direction to square axle 9, avoids square axle 9 to rock in spacing sleeve 2, influences moving down or rotating of one-way flywheel 6.

The elastic devices provided with the unidirectional flywheels 6 are distributed along the axis of the rotating shaft 5, and the motion tracks of the unidirectional flywheels 6 are coaxial with the rotating shaft 5. Through the arrangement, the unidirectional flywheel 6 is conveniently meshed with the transmission piece 3, and the phenomenon of chain dropping is reduced.

The buffering chain supporting device is used for changing the distance between the plurality of unidirectional flywheels 6 and the rotating shaft 5 according to the force applied to the pedal by a rider, the unidirectional flywheels 6 which rotate to the previous place when the rider applies force on the uphill move downwards under the action of the transmission piece 3, the unidirectional flywheels 6 move downwards to pass through the lower pressing block 8 to compress the spring 10, the distance between the unidirectional flywheels 6 and the rotating shaft 5 is reduced, and the labor-saving effect is achieved; when the vehicle runs downhill or on a flat ground, the compression spring 10 is restored, the distance between the unidirectional flywheel 6 and the axis of the rotating shaft 5 is increased, and the vehicle speed can be increased.

It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope defined in the present application.

Claims

1. The utility model provides a laborsaving bicycle, includes frame spandrel girder (1), chain wheel (4) and wears to establish pivot (5) on chain wheel (4), its characterized in that: install three group's buffering support chain devices on chain wheel (4) at least, buffering support chain device includes spacing sleeve (2), one-way flywheel (6) and installs the resilient means in spacing sleeve (2), resilient means extends to spacing sleeve (2) outside and rotates with one-way flywheel (6) and is connected, one-way flywheel (6) pass through driving medium (3) transmission with the sprocket of rear wheel.

2. A power saving bicycle as defined in claim 1, wherein: the elastic device comprises a square shaft (9) penetrating through the limiting sleeve (2) and a compression spring (10) sleeved on the square shaft (9), wherein one end of the compression spring (10) far away from the one-way flywheel (6) is fixedly connected in the limiting sleeve (2) and is located a lower pressing block (8) is fixedly arranged on the square shaft (9) in the limiting sleeve (2), and the lower pressing block (8) is located between the compression spring (10) and the one-way flywheel (6).

3. A power saving bicycle as defined in claim 2, wherein: be provided with on frame spandrel girder (1) and dial sprocket (12), dial sprocket (12) with driving medium (3) meshing, be connected with connecting rod (13) between the axle of dialling sprocket (12) and rear sprocket (14), connecting rod (13) are articulated with dialling sprocket (12) and rear sprocket (14) respectively, are close to it is provided with reset spring (11) to dial connecting rod (13) of sprocket (12) one end and be provided with between frame spandrel girder (1).

4. A power saving bicycle as defined in claim 2, wherein: the elastic device provided with the unidirectional flywheel (6) is distributed along the axis of the rotating shaft (5), and the movement track of the unidirectional flywheel (6) and the rotating shaft (5) are coaxial.

5. A power saving bicycle as defined in claim 2, wherein: the two ends of the limiting sleeve (2) are provided with guide cylinders (7) matched with the square shafts (9), and the square shafts (9) penetrate through the two guide cylinders (7).

6. A power saving bicycle as defined in claim 1, wherein: the transmission piece (3) is a chain or a belt.