CN203581289U

CN203581289U - Hand-pull front-drive power-assisted pedal bicycle

Info

Publication number: CN203581289U
Application number: CN201320809318.5U
Authority: CN
Inventors: 蒋年贵; 蒋荫明
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-12-11
Filing date: 2013-12-11
Publication date: 2014-05-07
Anticipated expiration: 2023-12-11

Abstract

The utility model relates to a hand-pull front-drive power-assisted pedal bicycle, and belongs to the technical field of bicycles. The utility model aims to solve the technical problems that the power transmission distance of hand-pull rear driving is long, and a faucet wobbles and is unstable in grasping at the beginning of riding the bicycle. The hand-pull front-driving assist pedal bicycle is characterized in that the upper end part of an auxiliary front fork is connected with the faucet in a sleeve type, and the lower part of the auxiliary front fork is fixedly connected with a front fork through a first rotary shaft and can rotate around the first rotary shaft forward and backward; the middle part of a herringbone gear lever is connected with the front fork through a second rotary shaft, the upper end of an up-and-down pull rod is connected with the front half part of the herringbone gear lever through a first adjustable joint, and the lower end of the up-and-down pull rod is connected with the lower end of the auxiliary front fork through a second adjustable joint; two ends of the herringbone gear lever are fixedly connected with two ends of an accelerating chain, and the middle segment of the accelerating chain is connected with a gear wheel coaxial with a front wheel. The hand-pull front-drive power-assisted pedal bicycle has the benefits that the hand-pull power-assisted driving of a front wheel is newly added for the main driving of a rear wheel pedal; the structure is simple, and the operation is flexible; the faucet is stably grasped not to wobble at the beginning of a learner riding the bicycle, and no potential safety hazard exists.

Description

Pull before driving power-assisted bicycle

Technical field

The utility model relates to a kind of pedal hand-pulled bicycle, relates in particular to the bicycle that a kind of use pulls before driving power-assisted, belongs to technical field of bicycles.

Background technology

Bicycle is the conventional vehicle of people, fitness tool, has environmental protection, the plurality of advantages such as pollution-free, easy to use.But long-term travel, against the wind or climbing still feel effort while riding, have the shortcomings such as physical consumption is large, speed is fast not.And only having both feet to trample motion while riding, both hands keep transfixion substantially, in the both hands numbness of often enduring cold cold season.For the problems referred to above, the patent No. is ZL200720001556.8, and name is called the Chinese patent of pedal hand-pulled bicycle, can be simultaneously by riding, pull driven in two modes bicycle.The end that pulls luffing car fork of this pedal hand-pulled bicycle is equipped with and turns to semicircular ring, turns between semicircular ring and ultrasonic transformer and is connected by butt hook.When not only complex structure, and bicycle handle bar turns to, turn to semicircular ring easily and adjacent miscellaneous part generation grazing, greatly affected alerting ability and safety that bicycle when turning is ridden.Chinese patent ZL201010237084.2 has reported the steering hardware of pedal hand-pulled bicycle has been improved, this utility model is simple in structure, the flexible operation of riding turns round, but while riding, pull handle, isometric apart from power transmission by stay cord, ultrasonic transformer, track adjusting wheel wheel rim groove, to trailing wheel disc spring, fly assembly set and drive, power transmission distance, beginner gets on the bus the initial stage of riding, there is tap to rock and hold unstable sensation, have potential safety hazard, have further improvement structure to improve necessity of safety by bike.

Summary of the invention

The technical problems to be solved in the utility model is to improve the driver train of bicycle, and what a kind of simple in structure, flexible operation, riding safety were provided pulls before driving power-assisted bicycle.

For achieving the above object, the technical scheme adopting is: pull before driving power-assisted bicycle, comprise cycle frame, front and back wheel, front fork, tap, it is characterized in that: secondary front fork upper end is connected with described leading sleeve-type, bottom is fixedly connected with described front fork by the first rotating shaft, and can before and after described the first rotating shaft, rotate; Before and after chevron pointing shifter bar, to setting, described chevron pointing shifter bar middle part is connected with described front fork by the second rotating shaft; Upper lower link upper end is connected with the forebody of described chevron pointing shifter bar by the first reviving joints, and lower end is connected with the lower end of described secondary front fork by the second reviving joints; The two ends of described chevron pointing shifter bar are fixedly connected with the two ends of accelerating chain, the stage casing of described accelerating chain and fly to join with the gear of the coaxial setting of front-wheel, and drive described gear to fly to sway.

Front side, described front fork upper end is equipped with front fork location backstop.

Turning point, described secondary front fork middle part is equipped with reinforced rib.

The beneficial effects of the utility model are: pull before driving power-assisted bicycle, the structure of bicycle pedals part is identical with ordinary bicycle, and many with existing Universal bicycle part, productive costs is low, but newly increased front-wheel power-assisted, drives function.Make the utility model because there being front-wheel power-assisted to drive, so against the wind, go up a slope that it is more easily laborsaving to ride, than the laborsaving 20%-30% of Regular Bicycle.The utility model trailing wheel is ridden main driving, pulls power-assisted drive each self-organizing system with front-wheel, and simple in structure, flexible operation, begins to learn the person of getting on the bus and ride the initial stage, and tap is held and firmly do not rocked, and does not have potential safety hazard.

Accompanying drawing explanation

Below in conjunction with accompanying drawing explanation and embodiment, the utility model is described in further detail.

The leading front push mode of Fig. 1 pulls before driving power-assisted bicycle structural representation;

Fig. 2 presses close to front fork location backstop and pulls before driving power-assisted bicycle structural representation for pulling leading secondary front fork.

In figure, 1-tap; 2-secondary front fork; 3-chevron pointing shifter bar; 4-secondary front fork reinforced rib; The 5-the first rotating shaft; 6-accelerating chain; 7-gear flies; The 8-the second reviving joints; 9-upper lower link; 10-front fork; The 11-the second rotating shaft; The 12-the first reviving joints; 13-location backstop.

The specific embodiment

Fig. 1 and Fig. 2 are that the utility model pulls before driving power-assisted bicycle structural representation.The equal inner side in front fork and secondary front fork of chevron pointing shifter bar 3, upper lower link 9 in figure, one side of front-wheel (being illustrated as the right side of front-wheel), front fork 10 lower ends are all fixedly linked with bicycle front axle, the bottom of secondary front fork 2 left and right two bifurcateds, symmetrical by the first rotating shaft 5(respectively) be fixedly connected with described front fork 10.One extension is arranged at the bottom that is secondary front fork 2 right side bifurcateds, by the second reviving joints 8, be connected with the lower end of described upper lower link 9, rise and pull described upper lower link 9 knee-actions, then by described chevron pointing shifter bar 3 forebodys, swing up and down, impel accelerating chain driven gear to fly in circles and turn.

The leading front push mode of Fig. 1, Fig. 2 presses close to front fork location backstop state for pulling leading secondary front fork.Diagram pulls before driving power-assisted bicycle, comprise cycle frame, front and back wheel, front fork 10, tap 1, it is characterized in that: secondary front fork 2 upper ends are connected with described leading 1 sleeve-type, bottom is fixedly connected with described front fork 10 by the first rotating shaft 5, and can rotate around described the first rotating shaft 5 front and back; Chevron pointing shifter bar 3 front and back are to setting, described chevron pointing shifter bar 3 middle parts are connected with described front fork 10 by the second rotating shaft 11, upper lower link 9 upper ends are connected with the forebody of described chevron pointing shifter bar 3 by the first reviving joints 12, and lower end is connected with the lower end of described secondary front fork 2 by the second reviving joints 8; The two ends of described chevron pointing shifter bar 3 are fixedly connected with the two ends of accelerating chain, the stage casing of described accelerating chain and fly to join with the gear of the coaxial setting of front-wheel, and drive described gear to fly to sway.

Described front fork 10 front sides, upper end are equipped with location backstop 13.

In the process of riding, foot-operated main driving and common bicycle are as good as, when going up a slope or needing against the wind to pull before driving power-assisted, first by tap 1 upper end to being extrapolated to the end (shown in Fig. 1), then (see figure 2) till pulling to the inside tap 1 that secondary front fork 2 is moved to be affixed with front fork 10 location, upper ends backstops 13.When tap 1 inwardly pulls, secondary front fork 2 bottoms press down, by the second reviving joints 8, upper lower link 9 is pulled downwards, and then drive chevron pointing shifter bar 3 by the first reviving joints 12, front end is downward, upwards, accelerating chain 6 driven gears that are connected with described chevron pointing shifter bar 3 two ends fly 7 rotations in rear end, and bicycle is accelerated to overtake; When described leading 1 to when extrapolation, all parts reversing senses motions.Secondary front fork 2 lower ends upwards drive upper lower link 9 upwards, drive accelerating chain 5 forward, and driven gear flies 3 revolutions, but can not make bicycle slow down.By inside drawing bicycle tap 1, provide power that front-wheel is advanced, during to extrapolation, gear flies 3 revolutions does not affect the speed of a motor vehicle, so moves in circles, thereby reach, pulls the object that before driving power-assisted improves the bicycle speed of a motor vehicle.Foot-operated trailing wheel flies main driving, pulls the driving of front-wheel power-assisted, and each self-organizing system does not interfere with each other, and simple in structure, flexible operation is ridden the initial stage even if begin to learn the person of getting on the bus, and tap is held and also firmly do not rocked, and does not have potential safety hazard.

Claims

1. pull before driving power-assisted bicycle, comprise cycle frame, front and back wheel, front fork, tap, it is characterized in that: secondary front fork upper end is connected with described leading sleeve-type, and bottom is fixedly connected with described front fork by the first rotating shaft, and can before and after described the first rotating shaft, rotate; Before and after chevron pointing shifter bar, to setting, described chevron pointing shifter bar middle part is connected with described front fork by the second rotating shaft; Upper lower link upper end is connected with the forebody of described chevron pointing shifter bar by the first reviving joints, and lower end is connected with the lower end of described secondary front fork by the second reviving joints; The two ends of described chevron pointing shifter bar are fixedly connected with the two ends of accelerating chain, the stage casing of described accelerating chain and fly to join with the gear of the coaxial setting of front-wheel, and drive described gear to fly to sway.

2. pull according to claim 1 before driving power-assisted bicycle, it is characterized in that: front side, described front fork upper end is equipped with location backstop .