CN201989899U

CN201989899U - Foldable bicycle

Info

Publication number: CN201989899U
Application number: CN2010206916127U
Authority: CN
Inventors: 宗亚军
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-12-27
Filing date: 2010-12-27
Publication date: 2011-09-28
Anticipated expiration: 2020-12-27

Abstract

The utility model relates to a foldable bicycle, which comprises a bicycle frame, bicycle handlebars and a back wheel fork regulation mechanism, wherein the bicycle frame consists of a front section, a middle section and a back section which are mutually hinged, the bicycle frame can form a U-shaped storage rack after being folded, the bicycle handlebars consist of a fixed left bicycle handlebar and a foldable right handlebar and can be used as a push and pull rod after being folded, and the back wheel fork regulation mechanism consists of a seat pipe, a seat pipe positioning sleeve and a support rod and has the function of regulating and controlling the angle between a back wheel fork and the bicycle frame and the height of the back wheel fork after being folded. A foldable universal wheel with auxiliary support and steering functions is arranged on the middle section. The foldable bicycle has a normal riding function in an unfolded state, the foldable bicycle has a reduced size, is portable and can be used as a normal hand pull trolley or a normal hand push trolley for realizing the functions of carrying luggage and objects when in a folded state, the defects that an existing foldable bicycle needs to be lifted by hands or carried on the shoulder after being folded, the carrying is inconvenient, and in addition, the existing foldable bicycle can become the burdens for people going out are overcome, great convenience and flexibility are brought for people going to daily trip and going out for traveling, so high practicability and commendable market application prospects are realized.

Description

A kind of Folding Bicycle

Technical field

The utility model relates to a kind of vehicle, particularly a kind of have flexible and convenient to use, carry light labour-saving Folding Bicycle.

Background technology

The kind of popular in the market Folding Bicycle is many, and folding mode also has a variety of, and their folding common purposes are the volumes that dwindle bicycle, are convenient to carry and collect keeping.Though because this class Folding Bicycle has dwindled volume effectively under folded state, but lost the function of normal walking on the ground mostly, particularly be not suitable for riding but need the occasion of the longer distance of walking at some, though existing Folding Bicycle can fold the back and carry under the situation of having dwindled volume, but must finish or need the user to carry with mode portable or pickaback, not only require great effort but also not too convenient, sometimes even become the burden of trip.For example in tourism way, the passenger generally needs under the situation with some luggage and articles more or less, if also need portable or bicycle pickaback, obviously is inconvenient and non-remunerative.So existing Folding Bicycle considers still to owe desirable, the necessary improvement from economy and point of view of practicability.

Summary of the invention

The purpose of this utility model is to solve necessary portable or weak point pickaback when existing Folding Bicycle is existing to be carried, provide a kind of neither need after folding portable or pickaback, can fill the post of Hand pulling vehicle or hand barrow again, luggage is carried in assistance, helps the Folding Bicycle of easily going on a journey and being convenient for carrying.

Folding Bicycle main body of the present utility model includes vehicle frame, be arranged on the vehicle frame front end, on the preceding mobile jib of handlebar and front-fork, be arranged on the vehicle frame rear end, on the back seat bar of saddle, rear wheel fork and rear wheel fork regulating mechanism, be characterised in that: described vehicle frame is made of mutually hinged continuous leading portion, stage casing and back segment, the stage casing is provided with a collapsible cardan wheel, but the hinged place be provided with the limitation locking buckle, each other level in the same way half-twist be bent into U-shaped; Described handlebar is by the left side handlebar and the right side handlebar of deviation constitute downwards; Described rear wheel fork regulating mechanism is made of seat pipe, seat pipe locating bush and strut bar, described seat pipe is provided with some spacing holes, the bottom of seat pipe links to each other with the end fixed vertical of vehicle frame back segment, and the upper end of rear wheel fork be hinged and connected, rear wheel fork can be rotated down around the bottom of seat pipe, be provided with the back seat bar that is used to install saddle in the axle center hole of seat pipe upper end, described seat pipe locating bush suit is provided with on the present pipe, be provided with the limitation locking bolt, its side is other to link to each other with the end assembling of described strut bar, and the other end of strut bar links to each other with the rear wheel fork assembling.During work, described rear wheel fork regulating mechanism is provided with the position adjustments rear wheel fork of the spacing hole on the present pipe and the angle between vehicle frame by the limitation locking bolt on the control seat pipe locating bush, when the limitation locking bolt is provided with on the present pipe in bottom the spacing hole, rear wheel fork be defined to the perpendicular position of vehicle frame on and contour with front-fork.

When folding, unclamp described limitation locking bolt earlier, move seat pipe location and be set to nethermost spacing hole, make rear wheel fork with vertical with vehicle frame and contour with front-fork; Unclamp the limitation locking buckle again, and leading portion and back segment are horizontally rotated 90 ° respectively in the same way, vehicle frame is bent into U-shaped, and put down collapsible cardan wheel on the vehicle frame stage casing; Last folded bicycle handle is affixed by handlebar downward deviation in left side on the preceding mobile jib, fixed type right side handlebar is stretched in the draw-in groove that places under the saddle, so formation is with the U-shaped rack down, is gone up and be with hand barrow or the hand buggy that is made of pull bar fixed type right side handlebar.Wherein, described collapsible cardan wheel has bicycle to be made feet, plays stable vehicle body when riding condition is parked, under the bicycle folding state,, and use as the wheel flutter of car as the front and back wheel of hand barrow or hand buggy supplemental support to the U-shaped rack.

So, under folded state, front-fork is mutually contour with rear wheel fork, and it is perpendicular with vehicle frame, leading portion on the vehicle frame and back segment are perpendicular with the stage casing after horizontally rotating 90 ° in the same way respectively, constitute into the U-shaped rack, collapsible cardan wheel vertically is positioned at below, vehicle frame stage casing after leaving the folding position, constitute the supplemental support of U-shaped rack, the downward deviation of left side handlebar in the handlebar is affixed by on the preceding mobile jib, fixed type right side handlebar is stretched in the draw-in groove that places under the saddle, fill the post of pull bar, so constitute band U-shaped rack down, last band pull bar, the bottom is supported by front and back wheel and collapsible cardan wheel and is turned to, the hand barrow or the hand buggy of displacement.

Based on the utility model Folding Bicycle of above-mentioned design, owing to the syllogic that vehicle frame is set to be made of mutually hinged continuous leading portion, stage casing and back segment, be convenient to leading portion and back segment and rotate 90 ° along the two ends, stage casing in the same way and constitute the U-shaped rack of being convenient to place luggage, object; By regulating seat pipe locating bush upper limit lock(ing) bolt in the rear wheel fork regulating mechanism spacing hole position on the present pipe is set, wheel fork is contour before and after making, and guarantees U-shaped rack level height unanimity; And by handlebar spacing method of stretching in the draw-in groove that places under the seat cushion in fixed type right side is constituted spacing failure-free fixed type pull bar; Simultaneously, because the vehicle frame stage casing is provided with collapsible cardan wheel, be convenient to bicycle and when riding condition is parked, make feet, play stable vehicle body, under the bicycle folding state,, and use as the wheel flutter of car as the front and back wheel of hand barrow supplemental support to the U-shaped rack.Therefore, Folding Bicycle of the present utility model had both had the function of normally riding under the non-folded state, has reduced volume under folded state again, portable function, also has the light Hand pulling vehicle function under the light condition, load luggage, normal hand under the article state is pulled a cart or the hand barrow function, efficiently solving existing Folding Bicycle needs after folding pickaback portable, carry inconvenience and become the burdensome weak point of trip, compare with existing any a Folding Bicycle, obviously have simple in structure and reasonable, folding convenient and reliable, carrying after not only being convenient to fold, but also can assist the user to carry more luggage, to go off daily and travel outdoors bringing great convenience property and flexible property, thereby have very strong practicality and valuable market application foreground.

Description of drawings

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

Fig. 2 is the utility model embodiment rear wheel fork folded state scheme drawing;

Fig. 3 is the utility model embodiment handlebar, vehicle frame folding view;

Fig. 4 is the overall structure scheme drawing after the utility model embodiment folds.

Among the figure:

1. mobile jib 5. saddles before vehicle frame 2. handlebars 3. front-forks 4.

6. rear wheel fork 7. rear wheel fork regulating mechanisms 8. back seat bars 9. leading portions 10. stage casings

11. back segment 12. collapsible cardan wheel 13. limitation locking buckles 14. left side handlebars

15. 17. pipes of 16. pipes of right side handlebar locating bush, 18. strut bars

19. spacing hole's 20. limitation locking bolt 21.U shape racks, 22. pull bars

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing and exemplary embodiments.

In Fig. 1, Fig. 2, Fig. 3 and Fig. 4, Folding Bicycle main body of the present utility model includes vehicle frame 1, be arranged on the vehicle frame front end, on the preceding mobile jib 4 of handlebar 2 and front-fork 3, be arranged on the vehicle frame rear end, on the back seat bar 8 of saddle 5, rear wheel fork 6 and rear wheel fork regulating mechanism 7, be characterised in that: described vehicle frame 1 is made of mutually hinged continuous leading portion 9, stage casing 10 and back segment 11, stage casing 10 is provided with a collapsible cardan wheel 12, but the hinged place be provided with limitation locking buckle 13, each other level in the same way half-twist be bent into U-shaped; Described handlebar 2 is by the left side handlebar 14 and the fixed type right side handlebar 15 of deviation constitute downwards; Described rear wheel fork regulating mechanism 7 is by seat pipe 16, seat pipe locating bush 17 and strut bar 18 constitute, described seat pipe 16 is provided with some spacing holes 19, the bottom of seat pipe 16 links to each other with the end fixed vertical of vehicle frame back segment 11, be hinged and connected with the upper end of rear wheel fork 6, rear wheel fork 6 can be managed 16 bottom around seat and is rotated down, be provided with back seat bar 8 in the seat pipe 16 upper end axle center holes and be used to install saddle 5, described seat pipe locating bush 17 suits are provided with on the present pipe 16, be provided with limitation locking bolt 20, its side is other to link to each other with the end assembling of described strut bar 18, and the other end of strut bar 18 links to each other with rear wheel fork 6 assemblings.During work, described rear wheel fork regulating mechanism 7 is provided with the angle of 1 of the position adjustments rear wheel fork 6 of the spacing hole 19 on the present pipe 16 and vehicle frame by the limitation locking bolt 20 on the control seat pipe locating bush 17, when limitation locking bolt 20 is provided with on the present pipe 16 on bottom spacing hole 19 positions, rear wheel fork 6 be defined to the perpendicular position of vehicle frame 1 on and contour with front-fork 3.

When folding, unclamp described limitation locking bolt 20 earlier, move seat pipe locating bush 17, make rear wheel fork 6 and front-fork 3 contour to nethermost spacing hole 19; Unclamp limitation locking buckle 13 again, and leading portion 9 and back segment 11 are horizontally rotated 90 ° respectively in the same way, vehicle frame 1 is bent into U-shaped, and put down collapsible cardan wheel 12 on the vehicle frame stage casing 10; Last folded bicycle handle 2, handlebar 14 downward deviations in left side are affixed by on the preceding mobile jib 4, fixed type right side handlebar 15 is stretched in the draw-in groove that places under the saddle 5, so formation is with U-shaped rack 21 down, is gone up band is made of pull bar 22 fixed type right side handlebar 15 hand barrow or hand buggy.Wherein, described collapsible cardan wheel has bicycle to be made feet, plays stable vehicle body when riding condition is parked, under the bicycle folding state,, and use as the wheel flutter of car as the front and back wheel of hand barrow or hand buggy supplemental support to U-shaped rack 21.

Under folded state, front-fork 3 is mutually contour with rear wheel fork 6, and it is perpendicular with vehicle frame 1, leading portion 9 on the vehicle frame 1 and back segment 11 are perpendicular with stage casing 10 after horizontally rotating 90 ° in the same way respectively, constitute into U-shaped rack 21, collapsible cardan wheel 12 vertically is positioned at 10 belows, vehicle frame stage casing after leaving the folding position, constitute the supplemental support of U-shaped rack 21, left side handlebar 14 downward deviations in the handlebar 2 are affixed by on the preceding mobile jib 4, fixed type right side handlebar 15 is stretched in the draw-in groove that places under the saddle 5, fill the post of pull bar 22, constitute band U-shaped rack 21 down, last band pull bar 22, the bottom is supported by front and back wheel and collapsible cardan wheel 12 and is turned to, the hand barrow or the hand buggy of displacement.

Claims

1. Folding Bicycle, main body includes vehicle frame (1), be arranged on the vehicle frame front end, on the preceding mobile jib (4) of handlebar (2) and front-fork (3), be arranged on the vehicle frame rear end, on the back seat bar (8) of saddle (5), rear wheel fork (6) and rear wheel fork regulating mechanism (7), it is characterized in that:

A. described vehicle frame (1) is made of mutually hinged continuous leading portion (9), stage casing (10) and back segment (11), stage casing (10) is provided with a collapsible cardan wheel (12), the hinged place be provided with limitation locking buckle (13) but, each other level in the same way half-twist be bent into U-shaped;

B. described handlebar (2) is by the left side handlebar (14) and the fixed type right side handlebar (15) of deviation constitute downwards;

C. described rear wheel fork regulating mechanism (7) is by seat pipe (16), seat pipe locating bush (17) and strut bar (18) constitute, seat pipe (16) is provided with some spacing holes (19), the bottom of seat pipe (16) links to each other with the end fixed vertical of vehicle frame back segment (11), be hinged and connected with the upper end of rear wheel fork (6), the bottom that rear wheel fork (6) can be managed (16) around seat is rotated down, stretch in the axle center hole of seat pipe (16) upper end and be equipped with the back seat bar (8) that is used to install saddle (5), seat pipe locating bush (17) suit is provided with on the present pipe (16), be provided with limitation locking bolt (20), its side is other to link to each other with the end assembling of described strut bar (18), and the other end of strut bar (18) links to each other with rear wheel fork (6) assembling:

D. under folded state, front-fork (3) is mutually contour with rear wheel fork (6), and it is perpendicular with vehicle frame (1), it is perpendicular after leading portion (9) on the vehicle frame (1) and back segment (11) horizontally rotate 90 ° respectively in the same way with stage casing (10), constitute into U-shaped rack (21), collapsible cardan wheel (12) vertically is positioned at below, vehicle frame stage casing (10) after leaving the folding position, constitute the supplemental support of U-shaped rack (21), left side handlebar (15) in the handlebar (2) deviation downwards is affixed by on the preceding mobile jib (4), fixed type right side handlebar (15) is stretched in the draw-in groove that places under the saddle (5), fill the post of pull bar (22), constitute band U-shaped rack (21) down, last band pull bar (22), the bottom is supported by front and back wheel and collapsible cardan wheel (12) and is turned to, the hand barrow or the hand buggy of displacement.