CN202608996U - Double-drive folding-type pedal bicycle - Google Patents

Abstract

The utility model belongs to the technical field of bicycles, and relates to a double-drive folding pedal bicycle assisted by a battery. The pedal system adopts a direct-drive bicycle pedal structure and a driver of a turntable structure is fixed as a whole to form a pedal to drive the front wheel to rotate. , the periphery of the driver is fixed with spokes to form a linkage structure with the front wheel; the bottom end of the front fork is fixed on the center of the driver, and the inner side of the front wheel of the front fork is fixed with a front brake and a front brake handle to form a manual brake mechanism for the front wheel ; The top of the front fork is directly inserted and fixed forward, and the cross type is made of a steering handle and a speed control handle. Connected and linked with the rear wheel to form a power-assisted mechanism; the junction of the saddle rod and the rear frame is equipped with a folder through an elastic pin; the diameter of the front wheel is greater than or equal to the diameter of the rear wheel; its structure is simple, safe and reliable, and it is easy to use and operate. It is light in operation and has dual functions of manpower and electric power assist.

Description

A double-drive folding bicycle

Technical field:

The utility model belongs to the technical field of bicycle preparation, and relates to a double-drive foldable pedal bicycle device with front and rear wheels without a chain structure, in particular to a double-drive foldable pedal bicycle powered by battery power.

Background technique:

Existing bicycle devices have multiple structural forms, and are generally divided into electric power-assisted bicycles, full-manpower pedal bicycles and full-electric chainless bicycles. These existing bicycles are applicable to different crowd categories and environmental occasions. Foldable bicycles have become a common means of transportation for modern tourism. There are many types and shapes of foldable bicycles, but summing up the existing various bicycles, their common The disadvantage is that the structure is relatively complicated, the function is single, the folding is not flexible, and it is inconvenient to use, especially for electric power-assisted bicycles. The current electric power-assisted bicycles are heavy in structure and are not suitable for tourism and mountain running. Features, the existing electric power-assisted bicycles are not easy to use folding structures, so they are only suitable for use in relatively flat areas of urban and rural streets, and the scope of application is limited.

Invention content:

The purpose of the invention of the utility model is to overcome the shortcomings of existing pedal bicycles, to seek to design a simple in structure, to use an electric power-assisted pedal bicycle with a chainless folding structure, and to improve the mechanical structure of existing bicycles from bicycles. Innovating and improving on the practical concept, changing the traditional structure mode, improving the function and adaptability of the front-drive chainless bicycle, maintaining the drive device in the middle of the front wheel, and moving forward under the action of the pedal crank; changing the passive rear wheel into a motor Power assist, can ride alternately according to road conditions, adopts a simple K-shaped frame, and installs a vertical folder in the middle of the front and rear frames.

In order to achieve the above object, the main structure of the utility model includes a driver, a front wheel, a pedal system, a front fork, a front brake, a rear brake handle, a steering handle, a front brake handle, a speed control handle, a front frame, a folder, a loose Lock pin, flat saddle, saddle bar, battery, rear frame, rear fork, rear wheel, motor and rear brake; the pedal system adopts the existing direct-drive bicycle pedal structure, the pedal system and the turntable The driver of the structure is fixed as a whole to form a pedal to drive the front wheel to rotate, and spokes are fixed on the periphery of the driver to form a linkage structure with the front wheel; the bottom end of the front fork is fixed on the center of the driver, and the inner side of the front fork is fixed with a The front brake, the front brake adopts the existing bicycle front brake structure, the front brake and the front brake handle form the manual brake mechanism of the front wheel; The upper part is equipped with a rear brake handle, and the rear brake handle and the rear brake are connected through the existing metal brake line to form the brake mechanism of the rear wheel; the middle part of the front fork is fixed with a front frame and a rear wheel that extend backward and slope downward. Vehicle frame, the front end of the rear vehicle frame is fixedly connected with the front vehicle frame, and its connection is perpendicular to the axis direction of the front vehicle frame and is fixed with a saddle rod by elastic pins, and a flat saddle is formed on the top of the saddle rod; the rear vehicle frame The lower part of the rear fork is formed with a rear wheel and a motor with a rotatable structure at the fork end of the rear fork. A rechargeable battery is fixed on the rear frame, and the battery is electrically connected with the motor and linked with the rear wheel. It constitutes the power-assisted mechanism of the rear wheel; the junction of the saddle bar and the rear frame is also fixed with a folder by elastic pins, which is convenient for the parts below the rear frame to fold down; the diameter of the front wheel is greater than or equal to the diameter of the rear wheel.

The utility model adopts the gear transmission in the driver to speed up, drives the front wheels to implement human-driven drive forward, starts the speed control handle to convert electric drive, drives the motor through the battery, and makes the rear wheels realize electric power-assisted advance, and the front and rear brake handles are controlled separately. Front and rear brakes, brake the front and rear wheels; if you need to carry and store, open the folder by loosening the lock pin, push the flat saddle to the steering handle, advance the frame by hand, and quickly put the rear frame combination and The rear wheel is vertically folded to the front wheel and the front frame area; if you want to unfold the bicycle, pull the flat saddle backward, press the front frame with your hand, and the body can be stretched out quickly; the top of the saddle rod is equipped with a push-in The flat saddle of the formula structure, the flat saddle adopts the existing universal bicycle seat structure and can adjust the height position.

Compared with the prior art, the utility model has the advantages of simple structure, safety and reliability, convenient use and operation, light operation, dual functions of manpower and electric power assist, and is suitable for mountain or field travel and mountain students; it adopts rechargeable battery power and is environmentally friendly .

Description of drawings:

Figure 1 is a schematic diagram of the overall structure of the utility model.

Detailed ways:

Further description will be made below through embodiments and in conjunction with accompanying drawings.

Example:

The main structure of this embodiment includes a driver 1, a front wheel 2, a pedal system 3, a front fork 4, a front brake 5, a rear brake handle 6, a steering handle 7, a front brake handle 8, a speed control handle 9, and a front frame 10 , folder 11, loose lock pin 12, flat saddle 13, saddle rod 14, battery 15, rear frame 16, rear fork 17, rear wheel 18, motor 19 and rear brake 20; Pedal system 3 adopts existing In some direct-drive bicycle pedal structures, the pedal system 3 and the driver 1 of the turntable structure are fixed as a whole to form a pedal to drive the front wheel 2 to rotate, and spokes are fixed on the periphery of the driver 1 to form a linkage structure with the front wheel 2; The bottom end of the fork 4 is fixed on the center of the driver 1, and the front wheel 2 inner side of the front fork 4 is fixed with a front brake 5. The front brake 5 adopts the existing bicycle front brake structure, and the front brake 5 and the front brake handle 8 form a front brake. The manual brake mechanism of the wheel 2; the top of the front fork 4 is directly inserted and fixed forward, and the cross type is made of a steering handle 7 and a speed control handle 9. The steering handle 7 is matched with a rear brake handle 6, and the rear brake handle 6 is connected with the rear brake handle 20 is communicated with the braking mechanism that constitutes rear wheel 18 by existing metal brake line; It is fixedly connected with the front vehicle frame 10, and its joint is perpendicular to the axial direction of the front vehicle frame 10. Only the saddle bar 14 is fixed by the elastic pin 12, and the flat saddle 13 is shaped on the saddle bar 14 top; Bottom is shaped on rear car fork 17, and the fork end place of rear car fork 17 is shaped on rear wheel 18 and motor 19 of rotatable structure, and the rear vehicle frame 16 is fixed with rechargeable battery 15, and battery 15 and motor 19 is electrically connected and is linked with the rear wheel 18 to form the power-assisted mechanism of the rear wheel 18; the junction of the saddle bar 14 and the rear frame 16 is also fixed with a folder 11 through the elastic pin 12, which is convenient to the parts below the rear frame 16. Fold fold.

The gear transmission in the linkage driver 1 adopted in this embodiment speeds up, drives the front wheel 2 to implement manual driving, starts the speed control handle 9 to convert electric drive, and drives the electric motor 19 through the battery 15, so that the rear wheel 18 realizes electric power assist Forward, the front and rear brake handles 6 and 8 control the front and rear brakes 5 and 20 respectively, brake the front wheel 2 and the rear wheel 18 brakes; if you need to carry and store, open the folder 11 by loosening the lock pin 12, and put the flat saddle 13 is pushed to the steering handle 7, the hand advances the frame 10, and the combination of the rear frame 16 and the rear wheel 18 can be quickly folded vertically to the front wheel and the frame area; if the bicycle is to be unfolded, the flat saddle 13 is pulled back , the front frame 10 is pressed by hand, and the car body can be stretched out rapidly; the top of the saddle rod 14 is shaped on a flat saddle 13 of a plug-in structure, and the flat saddle 13 adopts an existing general bicycle seat structure and can be adjusted High and low positions; the diameter of the front wheel 2 is greater than or equal to the diameter of the rear wheel 18.

Claims (1)

1. A dual-drive foldable pedal bicycle is characterized in that the main structure includes a driver, a front wheel, a pedal system, a front fork, a front brake, a rear brake handle, a steering handle, a front brake handle, a speed control handle, a front bicycle frame, folder, loose lock pin, flat saddle, saddle bar, battery, rear frame, rear fork, rear wheel, electric motor and rear brake; the pedal system adopts the existing direct-drive bicycle pedal structure , the pedal system and the driver of the turntable structure are fixed as a whole to form the pedal to drive the front wheel to rotate, and spokes are fixed on the periphery of the driver to form a linkage structure with the front wheel; the bottom end of the front fork is fixed on the center of the driver, and the front of the front fork The front brake is fixed on the inner side of the wheel, and the front brake and the front brake handle form the manual brake mechanism of the front wheel; The rear brake handle, the rear brake handle and the rear brake are connected through the existing metal brake line to form the braking mechanism of the rear wheel; The front end of the vehicle frame is fixedly connected with the front vehicle frame, and the joint is fixed by elastic pins perpendicular to the axial direction of the front vehicle frame to form a saddle bar, and a flat saddle is formed on the top of the saddle bar; the lower part of the rear frame is formed with a The rear fork has a rotatable rear wheel and a motor at the fork end of the rear fork, and the rear frame is fixed with a rechargeable battery, which is electrically connected to the motor and linked with the rear wheel to form the rear wheel Power-assisted mechanism; the junction of the saddle bar and the rear vehicle frame is also fixed with a folder by elastic pins; the diameter of the front wheel is greater than or equal to the diameter of the rear wheel.

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