CN201195579Y

CN201195579Y - Vertical-drive trample type foldable bicycle

Info

Publication number: CN201195579Y
Application number: CNU2007201999456U
Authority: CN
Inventors: 杨国庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-05
Filing date: 2007-12-05
Publication date: 2009-02-18
Anticipated expiration: 2017-12-05

Abstract

A trampling type folding bicycle can be folded into a form like a square notebook and can vertically ride, wherein a foldable main beam is formed by five sections in turn, wherein the first section has shorter length, the structure on the chained joint of the first section and the second section has the steering function, lower chain slots on the left and the right sides are both arranged in the bottom of the fourth section, and a back wheel is installed on the lower portion of the fifth section, the five sections are folded in turn to form a rectangular frame, and the back wheel is located inside the rectangular frame after being folding, a handle in left and right direction after being folded downwards can be folded inside the rectangular frame with a retractable front wheel bracing frame after retracting a front wheel, pedal assemblies on the left and right sides are retained on the fourth section of the foldable main beam to expand and attach on the two surfaces which are corresponding to the rectangular frame, and simultaneously drive left and right chains to totally enter into the left and the right lower chain slots. The bicycle is in a square notebook form after being folded without seeing chains on the separation positions of each joint of the section, and has the advantages of fast folding and unfolding speeds, small volume, light weight and simple structure.

Description

A kind of override type folding bicycle of upright driving

Affiliated technical field

The utility model relates to a kind of override type folding bicycle of upright driving, especially at existing utility model patent (patent name: a kind of override type folding bicycle of upright driving, the patent No.: improve on basis ZL2006200087010), especially reduce the center of gravity of folding left and right sides pedal, the folding rate of stretch is fast, volume is little, in light weight, simple in structure, integral rigidity intensity height during stretching, extension, folding back profile are the override type folding bicycle of the upright driving of square-folded notebook style.

Technical background

At present, existing utility model patent (patent name: a kind of override type folding bicycle of upright driving, the patent No.: the angle demodulator of the override type folding bicycle of the upright driving ZL2006200087010) is positioned at the junction of collapsible girder and collapsible preceding wheeling supporting frame, can cause bicycle complex structure herein like this, the strength and stiffness of parts are low; Before collapsible wheeling supporting frame adopt the hinge connection mode be looped around rectangular frame that the folding back of collapsible girder forms around, cause folding back size big and outward appearance is irregular, be not square-folded notebook style; The left and right sides, folding back chain easily exposes from each joint of collapsible girder cracks, and can cause pinching chain in the stretching process, is unfavorable for the fast folding and the stretching, extension of bicycle; Bicycle pedal is stressed, and to stop to locate center of gravity too high; Pedal area when bicycle stretches in the folding left and right sides is excessive, can cause the insufficient strength of pedal, is unfavorable for that the volume of bicycle reduces weight saving.

Summary of the invention

In order to overcome existing utility model patent (patent name: a kind of override type folding bicycle of upright driving, the patent No.: the rigidity and the insufficient strength of the angle demodulator of the override type folding bicycle of the upright driving ZL2006200087010), the left and right sides, folding back chain easily exposes from each joint of collapsible girder cracks, pedal is stressed, and to stop to locate center of gravity too high, it is fast inadequately to stretch folding rate, the big and profile fitfull deficiency of folding back size, the utility model provides a kind of override type folding bicycle of upright driving, this bicycle not only makes complete vehicle structure simple, intensity and toughness improves, the pedal center of gravity reduces, the folding rate of stretch is fast, overall volume is little in light weight, and folding back profile presents square-folded notebook style.

Technical scheme

The technical scheme that its technical matters that solves the utility model adopts is: at existing utility model patent (patent name: a kind of override type folding bicycle of upright driving, the patent No.: on basis ZL2006200087010), original folding preceding wheeling supporting frame is transformed into telescopic preceding wheeling supporting frame, collapsible girder is provided with five joints altogether: first segment length is very short, two ends are connected with the scalable preceding wheeling supporting frame and second joint respectively, second joint is connected with the 3rd joint, the 3rd joint is connected with the 4th joint, the 4th joint is connected with the 5th joint, the function of angle demodulator is played in the first segment of collapsible girder and the second joint junction, angle demodulator is set no longer separately, position originally is used for strengthening the strength and stiffness of collapsible girder and scalable preceding wheeling supporting frame, make scalable front-wheel supporting framing front end no longer include one section outstanding girder, have gear train to connect the chain and the trailing wheel of the left and right sides in the 5th joint.During stretching, extension, each joint of collapsible girder connects successively, the junction all can shape have a certain degree to have reduced the center of gravity of pedal, folding left and right sides pedal assembly stretches at this moment, collapsible left and right sides pedal is folding at this moment, pedal assembly stretches the back step entire area to be reduced, and thickness increases, and relative rigidity just increases.When folding, left and right sides handle-bar is folding to be entered in the telescopic preceding wheeling supporting frame, wheeling supporting frame shrinks back and the folding back formation of each joint of collapsible girder rectangular frame before scalable, folding left and right sides pedal assembly is folding in the corresponding groove of collapsible girder the 4th joint, folding left and right sides pedal stretches at this moment and covers the corresponding both sides of rectangular frame, left and right sides chain all enters under collapsible girder the 4th joint corresponding left and right sides, bottom surface in the key way, make it can be in stretching process by pinching, reach the folding rate of stretch of bicycle is improved, size reduces behind the bicycle folding, and profile is the purpose of square-folded notebook style.

The beneficial effects of the utility model are, the bicycle folding rate of stretch is fast, and the little lightweight structure of volume is simple, and integral rigidity intensity improves during stretching, extension, and the pedal center of gravity reduces, and folding back profile is square-folded notebook style.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is an expansion drawing of the present utility model.

Fig. 2 is folding figure of the present utility model.

1. left and right sides handle-bars among the figure, 2. wheeling supporting frame before telescopic, 3. front-wheel, 4. collapsible girder first segment, 5. folding left and right sides pedal assembly, 6. trailing wheel, 7. collapsible girder second joint, 8. collapsible girder the 3rd joint, 9. collapsible girder the 4th joint, 10. collapsible girder the 5th joint.

The specific embodiment:

In Fig. 1, left and right sides handle-bar (1) is connected with telescopic preceding wheeling supporting frame (2), wheeling supporting frame (2) is connected with collapsible girder first segment (4) with front-wheel (3) before telescopic, collapsible girder first segment (4), collapsible girder second joint (7), collapsible girder the 3rd joint (8), collapsible girder the 4th joint (9), collapsible girder the 5th joint (10) connects at a certain angle successively, collapsible girder the 5th joint (10) is connected with trailing wheel (6), folding left and right sides pedal assembly (5) stretches and in collapsible girder respectively saved corresponding groove, folding left and right sides pedal was folding.

In Fig. 2, collapsible girder first segment (4), collapsible girder second joint (7), collapsible girder the 3rd joint (8), collapsible girder the 4th joint (9) connect successively, connect into rectangular frame with telescopic preceding wheeling supporting frame (2), folding left and right sides pedal assembly (5) is folding, and folding left and right sides pedal stretches and the corresponding both sides of covering rectangular frame.

In conjunction with above each figure, wheeling supporting frame (2) connects front-wheel (3) and left and right sides handle-bar (1) before telescopic, collapsible girder first segment (4) is connected with telescopic preceding wheeling supporting frame (2), collapsible girder first segment (4) is connected with collapsible girder second joint (7), the function of angle demodulator is played in its junction, angle demodulator is set no longer separately, the position of bicycle angle demodulator originally is used for increasing the Joint strenght and the rigidity of telescopic preceding wheeling supporting frame (2) and collapsible girder first segment (4), collapsible girder second joint (7), collapsible girder the 3rd joint (8), collapsible girder the 4th joint (9), collapsible girder the 5th joint (10) connects at a certain angle successively, folding left and right sides pedal assembly (5) center of gravity is reduced, be provided with gear cluster in collapsible girder the 5th joint (10) and connect left and right sides chain and trailing wheel (6).When bicycle launches, without hindrance and the stretching, extension of folding left and right sides pedal assembly (5) crank motion in collapsible girder respectively saves corresponding groove, folding left and right sides pedal is folded state at this moment, area reduces, thickness increases, the weight capacity of bicycle is strengthened, and reaching increases the purpose that the bicycle strength and stiffness reduce complexity and weight.During bicycle folding, left and right sides handle-bar (1) is folding to be entered in the telescopic preceding wheeling supporting frame (2), wheeling supporting frame (2) shrinks and folds the back with each joint of collapsible girder and forms rectangular frame before telescopic, folding left and right sides pedal assembly (5) is folding in collapsible girder the 4th joint (9) corresponding groove, folding left and right sides pedal is extended configuration at this moment and covers the corresponding both sides of rectangular frame, left and right sides chain all enters under collapsible girder the 4th joint corresponding left and right sides, (9) bottom surface in the key way, make it can be in stretching process by pinching, reach the folding rate of stretch of bicycle is improved, size reduces behind the bicycle folding, and profile is the purpose of square-folded notebook style.

Claims

1. upright override type folding bicycle of driving, on preceding wheeling supporting frame top left and right sides handle-bar is installed, the bottom is equipped with front-wheel, preceding wheeling supporting frame is connected with collapsible girder, the both sides of collapsible girder are equipped with left and right sides pedal assembly, collapsible girder final section bottom is equipped with trailing wheel, it is characterized in that: collapsible girder is connected and composed successively by five joints, key way all is arranged on the bottom of the 4th joint under the left and right sides, and folding back outward appearance presents the square-folded notebook style of rule.

2. the override type folding bicycle of a kind of upright driving according to claim 1, it is characterized in that: the first segment length of collapsible girder is very short, the structure at the first segment and the second pitch chain place of connecing has the function of turning to, and the folding successively back of five joints forms the structure of rectangular frame.