CN2373356Y - Folding bicycle - Google Patents

Abstract

The utility model relates to a walking type bicycle which belongs to the technical field of the bicycle driven by manpower, composed of pedals, pedal knees, upper and lower position clamping salient of the pedal knees, a drive rod, a power gear wheel, a drive gear wheel, a flywheel of a front wheel, a front wheel, a back wheel, a back fork and a beam mount. The utility model can be used as a tool for replacing walking through combined connection. Compared with the traditional bicycle, the utility model has the advantages of light weight, low cost, easy portability, etc., and does not need any parking place. The habit that the human's two legs move in walking and running is sufficiently considered, so the human's physical strength obtains sufficient utilization. The utility model can also be conveniently combined into a four-wheel freight vehicle.

Description

Stroll formula bicycle

The utility model is with the manually driven bicycle of riding instead of walk, belongs to manpower and drives technical field of bicycles.

At present, the manpower walking-replacing tool that generally adopts of people is traditional bicycle.But traditional bicycle assembly parts is many, volume is big, cost is also high, and many inconvenience is also arranged when using, as accounting for parking place, being not easy to carry etc.And as the dry skiing plate of sports apparatus, though have the advantages that to slide in the nonirrigated farmland, it can not be a kind of pure sports movement apparatus as the manpower walking-replacing tool.

The purpose of this utility model is a kind of stroll formula bicycle that is different from standard bicycle again that drives with manpower of design.

Two cars about the utility model divides are stepped on usefulness for both feet.Specific design scheme of the present utility model will be illustrated by the description to right sheet car, and left sheet car is symmetry with it.

The utility model mainly is made up of manpower drive unit, power gear, transmission gear, preceding flying wheel, front-wheel, trailing wheel, roof beam structure etc., wherein manpower drive unit comprise pedal, pedal turn, pedal that the upper and the next card that turns is protruding, drive link etc.Driving process of the present utility model is: human is ridden pedal [10], turn [7] by pedaling power is passed to drive link [19], the drive link head is a pawl structures, limit ratchet [21] by it and power gear [5], drive power gear, thereby drive the transmission gear [3] of front-wheel [1], and then flying wheel [2] before driving, the final rotation that drives front-wheel makes wholely to travel forward under the driving of manpower from drawing car.

Of the present utility modelly pedal that to turn with drive link be to be fixed on simultaneously on the same turning cylinder, and certain angle that staggers, make to pedal to turn and move to when the next, the nadir of drive link motion is no more than the horizontal surface of roof beam structure, pedal and turn upper card protruding [8], the next card protruding [9] is to limit to pedal the slewing area up and down that turns, and the protruding position of two cards is arranged so that to pedal turns at the up vertical line that is no more than, and collides on the next when not making the pedal on even keel and ground.Pedal turn and drive link between the optimum distance angle be 31 °, pedal that to turn the protruding optimum position of upper and lower card be to make to pedal to turn to become with the roof beam structure horizontal surface in last 50 ° and the following 31 ° of scopes to rotate that pedal the length that turns this moment is 15cm.Turn when forwarding extreme lower position to when pedaling, pedal axle center [11] distance overhead is 2.2cm.Transmission lever bracket [20] defines the terminal location that rotates counterclockwise of drive link, thereby also is protruding with pedaling the next card that turns, and defines and pedals the terminal location that rotates counterclockwise that turns.

The front and back brake rubber block [12] that is provided with before and after the pedal of the present utility model bottom surface, the action principle of [13] are: when the treadmill people stepped on extreme lower position with pedal, pin was as long as lean forward or hypsokinesis, and brake rubber block is a kiss the earth, plays the drag effect.

Trailing wheel of the present utility model can play steering-effecting, be similar to the tail vane of ship, its structure can be as the front wheel steering structure of standard bicycle, be made up of turning cylinder [16] and back vent, when treadmill human desires left-handed turning, heel can be exerted oneself to the right, tiptoe left, trailing wheel is a left avertence, and car promptly turns left, otherwise then turns right.

The plane sizes of pedal of the present utility model, adapting with people's pin size gets final product, and make dirty when front-wheel rotates footwear and pin are before pedal, the right side can be baffled.In addition, on step tread plate, also should be provided with belt clamps, with fixedly treadmill people's pin and shoes.

The wheel rim of former and later two wheels of the present utility model can wrap up with rubber, can remove the trouble of inflation and tire patching like this from.

Two cars can be combined into a four-wheel transport truck about of the present utility model.

The utility model is compared with traditional bicycle, and following advantage is arranged: 1, removed parts such as chain, handlebar from, in light weight, cost is low; 2, can carry, need not parking place; 3, taken into full account the custom of the two legs motion that the people walks and run, people's muscle power can be fully used.

Fig. 1 is an integral structure side schematic view of the present utility model.[1] be front-wheel, [2] are preceding flying wheel, and [3] are transmission gear, [4] be the front-wheel axle center, [5] are power gear, and [6] are the power gear axle center, [7] turn for pedaling, [7 '] for pedaling the next position of turning, to turn upper card protruding in order to pedal [8], [9] to turn the next card protruding in order to pedal, and [10] are pedal, and [11] are the pedal axle center, [12], [13] are forward and backward brake rubber block, [14] be trailing wheel, [15] are rear axis, and [16] are the back fork shaft.

Fig. 2 is the utility model power driving part side schematic view.[17] be last card nose bar, [18] for blocking nose bar down, [19] are drive link, and [20] are the transmission lever bracket, and [21] are the limit ratchet of power gear, and [22] are roof beam structure.Pedal that to turn with drive link be to be fixed on the same axle, the drive link head is a pawl structures.

Fig. 3 is a part-structure birds-eye view of the present utility model.Each mark illustrates corresponding with Fig. 1, Fig. 2.Particularly it drive link has been described, pedal turn, the position situation of roof beam structure.

The utility model will further be illustrated by following examples.

Present embodiment is illustrated with reference to Fig. 1, Fig. 2, Fig. 3.The bicycle length overall is 75cm, wide 15cm, roof beam structure [22] level attitude is preceding, on the rear axis line, before, trailing wheel [1], [14] diameter all is 20cm, wrap up with rubber, the two-wheeled distance of shaft centers is 55cm, preceding flying wheel [2] diameter is 5.6cm, transmission gear [3] is 2.0cm, power gear [5] is 16.2cm, gear axis [6] and front-wheel axle center [4] are at a distance of 9cm, the limit ratchet [21] of power gear is wide to be 8cm, inside radius is 6.6cm, the ratchet spacing is 1cm, pedal [10] surface plate is long to be 25cm, the wide 12cm that is is located in axle center [11], apart from step tread plate leading edge 12cm, pedal and turn [7] long 15cm of being, when going upward to upper card protruding [8], with preceding, the trailing wheel axis becomes 50 ° of angles, when coming downwards to the next card protruding [9], become 31 ° of angles with this axis, before, back brake rubber block [12], [13] thick is 1cm, and drive link [19] is long to be 7cm, staggers into 31 ° of angles with pedaling to turn, the drive link head is a pawl structures, pedal turn on, the next card protruding [8], [9] by last, under block nose bar [17], [18] fixing, be respectively 9.5cm, 5.5cm, last card nose bar right angle forward extends 2.0cm, blocking protruding effective screens length is 0.8cm, and back fork shaft [16] becomes 108 ° of angles with the front and back wheel axial connecting line, and back vent becomes 18 ° of angles with the front and back wheel axial connecting line.

Claims (2)

1, a kind of stroll formula bicycle, it is characterized in that by pedal, pedal and turn, it is protruding to pedal the upper and the next card that turns, drive link, power gear, transmission gear, preceding flying wheel, front-wheel, trailing wheel, back vent, roof beam structure is formed, pedal is connected with pedaling to turn by the pedal axle, pedal that turning staggers with drive link is fixed on the power gear axle, the power gear axle is fixedly on the roof beam structure, pedal the inboard of turning at roof beam structure, drive link is in the outside of roof beam structure, the ratchet of drive link by the bar head is meshing with the limit ratchet of power gear and be connected with power gear, power gear and traction avant gear mesh, transmission gear, preceding flying wheel, front-wheel is with being fixed on the front wheel spindle, front wheel spindle is fixed on the roof beam structure, trailing wheel is connected with roof beam structure by back vent, pedal the upper and the next card that turns protruding make to pedal to turn be no more than vertical line when up, pedal horizontality tread surface not when descending.

2, stroll formula bicycle according to claim 1 is characterized in that being separately installed with brake rubber block in the bottom surface at the position, front and back of pedal.

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