CN202593778U - Hand and foot driven bicycle - Google Patents

Abstract

The utility model relates to a hand and foot driven bicycle improved on the basis of the conventional bicycle, and belongs to the field of transportation means or fitness equipment. A handlebar riser and a front fork front tube of the bicycle are connected through a universal joint clutch; the handlebar riser is sleeved with a riser connecting body; a center shaft of the bicycle is provided with a crank; and the crank is connected with the riser connecting body through a connecting rod. When two hands rock a handlebar in a front-push back-pull mode, the crank begins to rotate, the center shaft of the bicycle drives a back wheel to rotate, and pedal drive and handlebar steering and other functions of the common bicycle are fully remained. According to the hand and foot driven bicycle, the driving force of the bicycle is improved by effectively utilizing the strength of an upper limb of a human body, a defect that the common bicycle can be only driven by feet is made up, and the body building function of the bicycle is full. The hand and foot driven bicycle is tightly combined with the conventional bicycle, simple in structure, convenient to operate, and easy to promote.

Description

Trick and driving bicycle driven

Technical field

The utility model relates to a kind of vehicle or outdoor body-building apparatus, thereby specifically is exactly that a kind of hand driving device that on common bicycle, increases promptly increases trick and the driving bicycle driven that bicycle driving power has more comprehensive body building function again.

Background technology

At present, bicycle is because light and handy convenient, and integrating rides instead of walk liked by masses with body-building function, and popularity rate is very high.Yet common bicycle still has 2 weak points, the one, only provide power that bicycle is advanced by lower limb, upper limbs except that the control travel direction is can't be for bicycle provides power, the 2nd because upper limbs is failed fully activity, its upper body body-building effect is limited.

Summary of the invention

For remedying above 2 deficiencies, it is trick and the driving bicycle driven that bicycle increases power that the utility model provides a kind of upper limbs that can make, thereby increases bicycle driving power, improve the driveability of vehicle, and body building function is more comprehensive.

The utility model solves the technical scheme that its technical matters adopted: quadric linkage is set on common bicycle, drives bicycle middle shaft and rotate and drive bicycle and advance.That is: with connecting with gimbal coupling between pipe and the stem before the front fork, handlebar is become can movable rocking bar; On standpipe, be with the standpipe connected body, standpipe can rotate in the standpipe connected body, thereby handlebar also can be rotated when rocking back and forth, with the control travel direction; Crank is installed on the axis of bicycle, is linked to each other by connecting rod between crank and the standpipe connected body.When both hands postponed the mode of drawing in the past and shake handlebar, crank just began to rotate, and drove trailing wheel via bicycle middle shaft then and rotated.In the present technique scheme; Handlebar and standpipe connected body constitute a lever boosting mechanism; The application force that the standpipe connected body is delivered on the connecting rod is more much bigger than the power that upper limbs acts on the handlebar; The distance and standpipe connected body ratio to gimbal coupling mid point distance of handlebar to the gimbal coupling mid point depended in its scaling up, so there is stronger power-handling capability in the hand-drive mechanism of the utility model.

The utility model compared with prior art, its beneficial effect is:

(1) the both hands push-and-pull vehicle is advancing with the both feet driven in common bicycle that treadles, and bicycle driving power improves greatly, and both hands can turn to and brake with power-actuated while flexibly.

(2) upper limbs and lower limb are in when riding among the synchronous motion, and therefore the effect of body-building is more comprehensive by bike.

(3) because upper limbs and lower limb can firmly be ridden, so the cyclist can arrange muscle power according to health, avoid both legs to produce fatigue.Adopt the trick of three-wheel form and instead of walk for invalids and the body-building that driving bicycle driven can make things convenient for the elderly or lower limb inconvenience.

(4) technical scheme of the utility model combines closely with former bicycle, and is simple in structure, controls conveniently, is easy to popularize.

Description of drawings

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

Fig. 1 is the Facad structure scheme drawing of the utility model embodiment.

Fig. 2 is the plan structure scheme drawing of keystone configuration among Fig. 1.

Among the figure: 1. handlebar, 2. stem is 3. gone up locating bush, 4. descends locating bush, 5. gimbal coupling, 6. pipe before the front fork, 7. right block, 8. the standpipe connected body is 9. gone up connecting pin, 10. connecting rod, 11. times connecting pins, 12. cranks, 13. bicycle middle shafts, 14. short treadles.

The specific embodiment

As shown in Figure 1, adopt gimbal coupling (5) to connect before the front fork of bicycle between pipe (6) and the stem (2), make stem (2) become a rocking bar that can shake.Standpipe connected body (8) is spacing through last locating bush (3) and following locating bush (4); Be enclosed within on the stem (2); Stem (2) can rotate in standpipe connected body (8), like this when handlebar (1) deflection, and can be via stem (2); Gimbal coupling (5), pipe (6) before the front fork thus drive front-wheel deflection control travel direction.Double swerve for restriction stem (2) is equipped with left and right sides block on vehicle frame, be right block (7) shown in Fig. 1.The other end of standpipe connected body (8) is hinged via last connecting pin (9) and connecting rod (10).In conjunction with shown in Figure 2, crank (12) is installed in the left end of bicycle middle shaft (13), and the position of left foot treadle promptly was installed originally.The other end of crank (12) and connecting rod (10) are via connecting pin (11) is hinged down.Because the moving surface at connecting rod two is not in same plane, so connecting rod is the shape of a bending as shown in Figure 2 in the present embodiment.Length is fastened on down on the connecting pin (11) than the shorter short treadle (14) of former left foot treadle; Between following connecting pin (11) and the crank (12) also for being fastenedly connected; Lack treadle (14) like this, down connecting pin (11), crank (12) knot are as a whole, form the left foot treadle of bicycle.

When pin drives, the same with the former mode of riding, scrunch left and right sides stretcher and drive bicycle middle shaft (13) rotation, advance thereby drive trailing wheel.

When hand-drive, postpone before the both hands and pull a cart (1), through stem (2), standpipe connected body (8), connecting rod (10), crank (12) drives bicycle middle shaft (13) and rotates, and advances thereby drive trailing wheel.

Because it all is to act on bicycle middle shaft (13) that hand-drive and pin drive, so when going, among both hands and both feet are in all the time and are synchronized with the movement, so just do not have the problem of lower dead point on the extra solution cranks of needs (12).

Claims (1)

1. trick and driving bicycle driven; It is characterized in that: the stem of bicycle (2) is to adopt gimbal coupling (5) to be connected with the preceding pipe of front fork (6); On stem (2), be with standpipe connected body (8); Crank (12) is installed on bicycle middle shaft (13), links to each other by connecting rod (10) between crank (12) and the standpipe connected body (8).

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