CN213229034U

CN213229034U - Pedal driver

Info

Publication number: CN213229034U
Application number: CN202022030939.6U
Authority: CN
Inventors: 赵正东
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2021-05-18
Anticipated expiration: 2030-09-16

Abstract

The utility model discloses a pedal driver, which comprises a vehicle wheel, frame and drive wheel pivoted drive arrangement, be equipped with the axletree on the wheel, the axletree is hollow structure, drive arrangement is including wearing to establish the center pin in the axletree, locate the crank and the drive gear at center pin both ends, drive gear is including drive axletree pivoted flywheel, follow the synchronous pivoted chain wheel of center pin and carry the conversion gear to the flywheel with the power of chain wheel, conversion gear's quantity is two, including first conversion gear and second conversion gear, first conversion gear and second conversion gear lateral part are equipped with the pivot, pivot and frame fixed connection. The utility model discloses cancel traditional chain drive system, adopt gear drive mode, can improve transmission efficiency by a wide margin, it is more laborsaving when making to ride. Simultaneously, owing to cancelled chain drive, the utility model discloses can reduce the automobile body volume by a wide margin, reduce the weight of vehicle.

Description

Pedal driver

Technical Field

The utility model relates to a bicycle field, concretely relates to pedal driver.

Background

The traditional bicycle pedal is arranged between a front wheel and a rear wheel, and a flywheel is driven to rotate through a chain. The pedal driving system is easy to have the phenomenon of chain dropping, and the kinetic energy is greatly lost in the transmission process. In the riding process of the traditional monocycle foot, the pedals are stepped to rotate for one circle, the wheels can rotate for one circle, and the speed is lower.

Therefore, in order to improve the transmission efficiency of power during pedaling, a new pedal driver needs to be researched.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned problem, provide a pedal driver. In order to achieve the above purpose, the utility model adopts the following technical scheme:

a pedal driver comprises wheels, a frame and a driving device for driving the wheels to rotate, wherein wheel shafts are arranged on the wheels and are of a hollow structure, the driving device comprises a center shaft penetrating the wheel shafts, cranks and a driving gear, the cranks and the driving gear are arranged at two ends of the center shaft, the driving gear comprises a flywheel for driving the wheel shafts to rotate, a toothed disc which rotates synchronously along with the center shaft and conversion gears for conveying power of the toothed disc to the flywheel, the number of the conversion gears is two, the conversion gears comprise a first conversion gear and a second conversion gear, rotating shafts are arranged on the side portions of the first conversion gear and the second conversion gear, and the rotating shafts are fixedly connected with the frame.

As an improvement, a bearing is arranged at the joint of the wheel shaft and the frame.

As an improvement, the chain wheel has a larger radius, the edge position of the chain wheel extends to one side of the wheel to form a ring-shaped bulge, and the inner side of the bulge is provided with inner teeth.

As an improvement, the flywheel, the first conversion gear and the second conversion gear are arranged between the chain wheel and the frame, and the flywheel, the first conversion gear, the second conversion gear and the chain wheel are meshed with each other in sequence.

As a modification, the tail end of the crank is provided with a pedal.

As an improvement, two sides of the wheel shaft are provided with second bearings connected with the central shaft.

The utility model has the advantages that:

the utility model discloses cancel traditional chain drive system, adopt gear drive mode, can improve transmission efficiency by a wide margin, it is more laborsaving when making to ride. Simultaneously, owing to cancelled chain drive, the utility model discloses can reduce the automobile body volume by a wide margin, reduce the weight of vehicle.

Drawings

Fig. 1 is a schematic view of a pedal driver according to embodiment 1;

fig. 2 is a schematic view of the operating principle of the pedal driver in embodiment 1.

The labels in the figure are:

1-wheel, 11-wheel axle, 12-bearing, 2-frame, 3-drive, 31-center axle, 32-crank, 33-drive gear, 331-flywheel, 332-chain wheel, 333-first transfer gear, 334-second transfer gear, 335-rotation axle, 336-bulge, 337-internal tooth, 34-pedal, 35-second bearing.

Detailed Description

The present invention will be described in detail and specifically with reference to the following examples so as to provide a better understanding of the present invention, but the following examples do not limit the scope of the present invention.

Example 1

The embodiment discloses a pedal driver, which comprises a wheel 1, a frame 2 and a driving device 3 for driving the wheel 1 to rotate, wherein a wheel shaft 11 is arranged on the wheel 1, the wheel shaft 11 is of a hollow structure, and a bearing 12 is arranged at the joint of the wheel shaft 11 and the frame 2.

The driving device 3 includes a center shaft 31 inserted into the wheel shaft 11, and cranks 32 and a driving gear 33 provided at both ends of the center shaft 31. The driving gear 33 comprises a flywheel 331 for driving the wheel shaft 11 to rotate, a chain wheel 332 synchronously rotating along with the central shaft 31 and two conversion gears for transmitting the power of the chain wheel 332 to the flywheel 331, the conversion gears comprise a first conversion gear 333 and a second conversion gear 334, the side parts of the first conversion gear 333 and the second conversion gear 334 are provided with rotating shafts 335, and the rotating shafts 335 are fixedly connected with the frame 2.

The chain wheel 332 has a larger radius, the edge of the chain wheel 332 extends to the side of the wheel 1 to form a ring-shaped protrusion 336, and the inner side of the protrusion 336 is provided with inner teeth 337. The flywheel 331, the first conversion gear 333 and the second conversion gear 334 are arranged between the chain wheel 332 and the frame 2, the flywheel 331 is meshed with the first conversion gear 333, the first conversion gear 333 is meshed with the second conversion gear 334, and the second conversion gear 334 is meshed with the chain wheel 332.

The crank 32 is terminated by a pedal 34. The wheel shaft 11 is provided with second bearings 35 on both sides thereof, which are connected to the center shaft 31.

As shown in FIG. 2, when the pedal 34 is stepped on, the crank 32 drives the chain wheel 332 to rotate clockwise, and after transmission of the first conversion gear 333 and the second conversion gear 334, the flywheel 331 and the chain wheel 332 keep the same rotation direction, i.e. clockwise rotation.

The utility model discloses an meshing between the gear carries out the direct drive of power, and the transmission of power is effectual. When the diameter of the chain wheel 332 is larger and the diameter of the flywheel 331 is smaller, the rotating speed of the wheel 1 is faster.

The present invention has been described in detail with reference to the specific embodiments thereof, which are provided by way of example only, and the present invention is not limited to the specific embodiments described above. Any equivalent modifications and substitutions to those skilled in the art are also within the scope of the present invention. Therefore, the equivalent changes and modifications without departing from the spirit and scope of the present invention should be covered by the scope of the present invention.

Claims

1. A pedal driver is characterized by comprising wheels, a frame and a driving device for driving the wheels to rotate, wherein wheel shafts are arranged on the wheels and are of hollow structures, the driving device comprises a central shaft penetrating through the wheel shafts, cranks and driving gears, the cranks and the driving gears are arranged at two ends of the central shaft, the driving gears comprise flywheels for driving the wheel shafts to rotate, cranks which follow the central shaft to rotate synchronously and conversion gears for conveying power of the cranks to the flywheels, the conversion gears are two in number and comprise first conversion gears and second conversion gears, rotating shafts are arranged on the side portions of the first conversion gears and the second conversion gears, and the rotating shafts are fixedly connected with the frame.

2. A pedal drive as set forth in claim 1, wherein the wheel axle is provided with a bearing at the connection to the frame.

3. A pedal drive as set forth in claim 1, wherein said crankset has a relatively large radius, and wherein said crankset has an edge portion extending in an annular projection toward the wheel side, said projection being internally toothed.

4. A pedal driver according to claim 3, wherein the flywheel, the first transfer gear and the second transfer gear are disposed between the crankset and the frame, the flywheel, the first transfer gear, the second transfer gear and the crankset being sequentially intermeshed with one another.

5. A pedal driver according to claim 1, wherein the crank is terminated with pedals.

6. A pedal drive according to claim 1, wherein the wheel axle is provided with second bearings on either side of the wheel axle for connection to the central axle.