CN2246108Y - Multifunctional folding miniature shock-proof bicycle - Google Patents

Abstract

The utility model relates to a multifunctional folding miniature shock-proof bicycle which adopts the small bicycle wheel double-chain double-stage overdrive. A rear wheel is provided with a damping spring, and a mid connecting pipe is divided into a front section, a middle section and a back section. A folding and rotating coupler is arranged between each two sections, and a rear fork is also provided with a folding and rotating coupler. A front wheel and the rear wheel can be respectively folded to the lower part of a saddle vertical pipe, and the two wheel shaft cores are straightly connected. The both sides of a clothes hanger support pipe are provided with two small pulleys which can touch the ground when the rear wheel is folded. A Multifunctional handcart with four wheels can be composed of the two pulleys, the front wheel and the rear wheel. The utility model supplies for adults to ride when on duty or off duty. The utility model is portable after folded when the user takes the cars, the subways, the trains or the ships, so the utility model can be alternately used in the midway of traveling.

Description

The multifunction folding bicycle that miniature energy is shockproof

The utility model relates to the shockproof multifunction folding bicycle of a kind of miniature energy.

At present, existing multiple both at home and abroad Folding Bicycle listing, but general volume after folding is still bigger, and lack supporting antivibration device, so be not used widely as yet.

The purpose of this utility model be to provide a kind of miniature and have antivibration device, can fold and folding after can do that Luggage Cart and shopping cart etc. are multi-purpose, volume is little, in light weight, folding convenient, safe and reliable, the comfortable person bicycle that becomes of riding.

The purpose of this utility model is such realization: the preceding standpipe of bicycle, saddle standpipe and connect their middle pipe leading portion, middle connection pipe stage casing and middle pipe back segment are formed H shape altogether, between middle pipe leading portion and middle pipe stage casing and in all have the middle pipe connector that joins to connect between connection pipe stage casing and the middle pipe back segment, this joiner structure is the rear end of middle pipe leading portion, and the front end of middle connection pipe back segment, outside thread tube head of each cover weldering, in the mesopore The initial segment of male-pipe head is the taper hole of tapering slightly, taper hole is by outer big to interior little, connect the small-bore back segment of taper hole and be one section straight hole pipe with small-bore same diameter, and on the straight hole tube wall, axially be milled with pair of openings Xiao groove; Be with two coupling nuts on the middle connection pipe stage casing with outside thread tube head identical pitch; In addition two ends, middle pipe stage casing are made the short axis of cone that the taper hole tapering with the outside thread tube head is complementary, the short axis of cone is by outer little of interior big, and larger diameter end have an elevated scapula exceed in the diameter in connection pipe stage casing, again short axis of cone axial centre facing cut have one with the wide Xiao's groove of outside thread tube head straight hole Xiao groove, being embedded with T shape slip Xiao sheet in this Xiao's groove uses Xiao's axle with both Xiao Lian again, make the short axis of cone can on T shape slip Xiao sheet, turn back 90 ° and do not break away from, the connection tubular axis is to former and later two short axis of cone are pushed in the taper hole of its cooresponding outside thread tube head separately in the edge, T shape slip Xiao sheet can be followed the short axis of cone and inwardly be slided in male-pipe head straight hole Xiao groove, again two coupling nuts are tightened in respectively on its cooresponding outside thread tube head and make its non-loosening, connection pipe leading portion in just making, stage casing and back segment totally three sections be linked to be a straight line and fix, otherwise two coupling nuts of outwarding winding when needing to fold, two short axis of cone are pulled out its cooresponding outside thread tube head outer end respectively, and make it on T shape slip Xiao sheet, turn back 90 °, connection pipe leading portion in just making, middle connection pipe stage casing and middle pipe back segment are converted into " U " shape, reach front-wheel and turn back to right back, preceding standpipe is in the parallel close purpose in saddle standpipe right side.The back vent that is divided into two sections of the front and back pipe of turning back is arranged connecting between back vent transverse tube and the central axis seat pipe, turn back at two sections back vents the back vent unitor of turning back is housed between the pipe, its structure is two and makes one protruding one recessed respectively, the mutually back vent of scarf convex joint and the back vent female fitting of turning back of turning back, be milled with Xiao hole at both concavo-convex scarf positions, and turn back Xiao's axle with both Xiao Lian with back vent, is that folding forward just to reach trailing wheel folding forward in the center of circle with the back vent pipe back segment of turning back with back vent Xiao's axle of turning back, make front wheel spindle core and hind axle core at close saddle standpipe lower position mutually to the purpose of in line row.Between connection back vent transverse tube and saddle riser upper, the antivibration spring unitor is housed, antivibration spring one end is packed on the saddle standpipe with the spiral shell inspection, other end freedom is unsettled, and aim at the outside thread short tube on being welded in the back vent transverse tube, the connection minor axis that can insert antivibration spring outside thread short tube mesopore is housed at the antivibration spring free end, its stage casing is with the antivibration spring coupling nut with outside thread short tube identical pitch, on the connection minor axis, an elevated scapula is arranged again, the antivibration spring coupling nut can not be broken away from from connecting minor axis, behind the mesopore that connects minor axis insertion antivibration spring outside thread short tube, the antivibration spring coupling nut is tightened on the antivibration spring outside thread short tube, reaching back vent is hung on the antivibration spring together with trailing wheel, when riding, back vent is pressed in the antivibration spring lower end, and when trailing wheel is jolted, making back vent is that the center is shaken with back vent Xiao's axle of turning back, its amplitude of vibration absorbs through antivibration spring, reaches to alleviate the purpose that the people that rides jolts and feels greatly.Because the minicar wheel diameter reduces, in order not reduce step revolution stroke, the transmission of special employing double stage chain wheel speedup, the duplex gap bridge sprocket wheel that is about to the double stage chain wheel transmission is loaded on turn back radial bearing cylindrical on Xiao's axle of back vent, make the gap bridge minor sprocket be subjected to the transmission of step hinge wheel, by the flywheel on the gap bridge hinge wheel transmission trailing wheel, reaching the speed of a motor vehicle of riding can be near the purpose of common bull wheel footpath bicycle again.Clothes hanger is stuck in the clothes hanger trustship with spring clip in addition, when folding clothes hanger is moved to the seat board that oneself is folded into the middle Guan Shangzuo Luggage Cart etc. of " U " shape.

Below in conjunction with the accompanying drawing of an embodiment, details are as follows to the structure of utility model:

The multifunction folding bicycle side-looking constructional drawing that the miniature energy of Fig. 1 is shockproof

The connection pipe joiner structure figure that turns back among Fig. 2

Fig. 3 back vent antivibration spring joiner structure figure

Fig. 4 back vent turn back unitor and double stage chain wheel speedup transmission diagram

Fig. 5 front-wheel is to the folding top view in right abaft

The folding back of Fig. 6 front and back wheel diaxon core is to straight top view

Fig. 7 finishes folding lateral side view

1-preceding standpipe, 2-middle pipe leading portion, the 3-middle pipe unitor of turning back, 4-middle pipe stage casing, 5-middle pipe the unitor of turning back, 6-middle pipe back segment, 7-saddle standpipe, 7A-antivibration spring seat cushion, 8-antivibration spring, 9-back vent antivibration spring unitor is managed back segment on 10-back vent, 11-clothes hanger, 12-front-wheel, 13-front wheel spindle core, 14-front fork, 15-crank and chain-wheel, 16-axis, 17-central axis seat pipe, the 18-back vent pipe leading portion of turning back, 19-back vent unitor of turning back, 20-gap bridge minor sprocket, 21-gap bridge hinge wheel, the 22-back vent pipe back segment of turning back, 23-back vent, 24-back flying wheel, 25-trailing wheel, 26-hind axle core, the trustship of 27-clothes hanger, 28-small sheave, 29-back vent transverse tube, the 30-short axis of cone, 31-outside thread tube head, 32-T shape slip Xiao sheet, 33-Xiao axle, 34-middle pipe coupling nut, bonding pad before 35-antivibration spring, 36-bolt, 37-antivibration spring connects minor axis, 38-antivibration spring coupling nut, 39-bolt spring packing ring, 40-antivibration spring rear bolt hole coupling ring, 41-antivibration spring outside thread tube head, the 42-back vent convex joint of turning back, 43-back vent Xiao's axle of turning back, the female fitting of turning back of 44-back vent, 45-step crank, 46-gap bridge radial bearing, 47-big or small gap bridge sprocket wheel duplex edge cover, 48-hind axle ginned cotton dish.

In preceding standpipe 1 saddle standpipe 7 on bicycle front fork 14 and the middle pipe leading portion 2 that is connected them connection pipe stage casing 4 and in connection pipe back segment 6 form " H " shape altogether, between middle pipe leading portion 2 and middle pipe stage casing 4 and in all have the middle pipe connector 3 or 5 that joins to be connected between connection pipe stage casing 4 and the middle pipe back segment 6, this unitor 3 or 5 structure are identical, see Fig. 2.With the rear end of middle pipe leading portion 2 or the front end of middle pipe back segment 6, outside thread tube head 31 of cover weldering, the mesopore The initial segment of outside thread tube head 31 is the taper hole of tapering slightly, taper hole is by outer big to interior little, small-bore what communicate is one section straight hole pipe with taper hole small end same diameter with taper hole, and axially is milled with pair of openings Xiao groove on the straight hole tube wall; Connection is managed coupling nut 34 in being with on the middle connection pipe stage casing 4, and its pitch is identical with outside thread tube head 31; And 4 two ends, middle pipe stage casing are made the short axis of cone 30 that the taper hole tapering with outside thread tube head 31 is complementary respectively; The larger diameter end of the short axis of cone 30 have an elevated scapula exceed in connection manage the external diameter in stage casing 4, at the short axis of cone 30 axial centre facing cuts opening Xiao groove is arranged again, its width is identical with straight hole Xiao groove of outside thread tube head 31, in above-mentioned two Xiao's grooves, be embedded with T shape slip Xiao sheet 32, and will lack the axis of cone 30 and T shape slip Xiao sheet 32 Xiao Lian with Xiao's axle 33, make the short axis of cone 30 can on T shape slip Xiao sheet 32, turn back 90 ° and do not break away from; The connection tubular axis is to former and later two short axis of cone 30 are pushed in the taper hole of its cooresponding outside thread tube head 31 separately in the edge, T shape slip Xiao sheet 32 can be followed the short axis of cone 30 and inwardly be slided in male-pipe head 31 straight hole Xiao grooves, again connection pipe coupling nut 34 in former and later two is tightened in its cooresponding outside thread tube head 31 respectively, connection pipe coupling nut 34 is close to the height shoulder non-loosening of the short axis of cone 30 in making, in reaching in the connection pipe leading portion 2 connection pipe stage casing 4 and in 6 three sections connections of connection pipe back segment fix in line; Otherwise when needing to fold, the connection pipe coupling nut 34 in two of outwarding winding, two short axis of cone 30 are outwards pulled out, and make it on T shape slip Xiao sheet 32, turn back 90 °, connection pipe leading portion 2 in just making, middle pipe stage casing 4 and middle connection pipe back segment are converted into " U " shape for 6 three sections, reach front-wheel 12 and turn back to right back, before the standpipe 1 close purpose that is parallel to each other on the right side of saddle standpipe 7, see Fig. 5.Connecting between back vent transverse tube 29 and the central axis seat pipe 17, be welded with back vent turn back pipe leading portion 18 and back segment 22, and the back vent unitor 19 of turning back is housed, its structure is seen Fig. 4, convex joint 42 and the back vent female fitting 44 of turning back of turning back of two back vents of making a protruding recessed mutual scarf respectively, be milled with Xiao hole at both concavo-convex scarf positions and have back vent Xiao's axle 43 Xiao Lian that turn back to form the back vent unitor 19 of turning back, be that the center of circle folds forward with the back vent pipe back segment 22 of turning back with the back vent Xiao's axle 43 of turning back, it is folding forward just can to reach trailing wheel 25, make front wheel spindle core 13 and hind axle core 26 leaning on saddle standpipe 7 lower positions, see Fig. 6 mutually to the purpose of in line row.Antivibration spring 8 is housed between connection back vent transverse tube 29 and saddle standpipe 7 tops sees Fig. 1 and Fig. 3 with antivibration spring unitor 9, its structure is that antivibration spring 8 one ends are packed on the antivibration spring seat cushion 7A with bolt 36, antivibration spring seat cushion 7A is welded in the top of saddle standpipe 7, be welded with antivibration spring screw coupling ring 40 at antivibration spring 8 free ends, and there is thread segment spinning that antivibration spring connects minor axis 37 therein, connect on the minor axis 37 at antivibration spring again, kink has antivibration spring coupling nut 38, on back vent transverse tube 29, be welded with pipe back segment 10 on the back vent in addition, the other end cover of pipe back segment 10 is welded with antivibration spring outside thread tube head 41 on back vent, its pitch is identical with antivibration spring coupling nut 38, in antivibration spring outside thread tube head 41 axle center one mesopore is arranged, the head end that can make antivibration spring connect minor axis 37 is filled in wherein, up to antivibration spring connect on the minor axis 37 and elevated scapula near antivibration spring outside thread tube head 41 till, after antivibration spring connection minor axis 37 is filled in antivibration spring outside thread tube head 41 mesopores, again antivibration spring coupling nut 38 is tightened on the outside thread tube head 41, back vent 23 is hung on the antivibration spring 8 together with trailing wheel 25; Back vent 23 is pressed in antivibration spring 8 lower ends when riding, and when trailing wheel 25 was subjected to jolting, making back vent 23 was that the center is shaken with the back vent Xiao's axle 43 of turning back, and its amplitude of vibration absorbs through antivibration spring 8, reaches and alleviates the purpose of riding into the suffered sensation of jolting greatly.Because minicar selects for use wheel diameter to reduce, in order not reduce the step stroke that the gained bicycle advances that turns around, the transmission of special employing double stage chain wheel speedup, see Fig. 1 and Fig. 4, the big minor sprocket duplex edge of gap bridge minor sprocket 20 and gap bridge hinge wheel 21 usefulness cover 47 is combined as a whole, interior dress gap bridge radial bearing 46, being loaded on back vent more together turns back on Xiao's axle 43, make gap bridge minor sprocket 20 be subjected to pedal sprocket 15 transmissions, thereby change by 24 steps 45 1 of the flywheel on the gap bridge hinge wheel 21 transmission trailing wheels second stage again, the revolution of trailing wheel 25 can increase by 500 above, and reaching the speed of a motor vehicle of riding can be near the purpose of common bull wheel footpath bicycle speed.

Clothes hanger 11 usefulness spring clipes are stuck in the clothes hanger trustship 27 in addition, when folding clothes hanger 11 are pulled up from clothes hanger trustship 27, and it is clamped on spring clip on the middle pipe 2 and 6 that is folded into " U " shape, can make the seat board of purposes such as baggage car or shopping cart.Clothes hanger trustship 27 is packed on the back vent leg 23, and small sheave 28 each side is housed in clothes hanger trustship 27 corners, when folding, small sheave 28 is turned back in company with back vent leg 23 and trailing wheel 25 with clothes hanger trustship 27, small sheave 28 is landed, form four-wheeled hand trucks jointly with front-wheel 12 and trailing wheel 25 after folding, see Fig. 7.In the present embodiment; it is the various trundles of 250 to Ф 405 millimeters of Ф that front and back wheel can be selected diameter for use; can ride on and off duty or outdoor activity for the adult; carry by bus after folding easily again, subway, train and steamer etc. make long-term travel; can also make daily or multi-purpose hand barrow or interim seat during the journey, be multifunction folding bicycle worthy of the name.

Claims (5)

1 one kinds of multifunction folding bicycles that miniature energy is shockproof, by front-wheel (12), trailing wheel (25), preceding standpipe (1), middle connection pipe leading portion (2), middle pipe stage casing (4), middle pipe back segment (6), saddle standpipe (7), antivibration spring (8), clothes hanger (11), front fork (14), back vent (23) and small sheave compositions such as (28) is characterized in that:

1) preceding standpipe (1), saddle standpipe (7) and the middle pipe leading portion (2) that connects this two pipe, middle pipe stage casing (4), middle pipe back segment (6) is formed H shape, in totally three sections between the connection pipe, per two sections joint areas are equipped with middle union adaptor device (3) or (5) of same structure respectively after in preceding;

2) back vent pipe leading portion (18) and the back vent pipe back segment (22) of turning back of turning back is arranged between back vent transverse tube (29) and the central axis seat pipe (17), the back vent pipe connector (20) of turning back is arranged between this two pipe;

3) antivibration spring (8) and antivibration spring unitor (9) are housed between back vent transverse tube (29) and saddle standpipe (7) top;

4) turn back and big or small gap bridge sprocket wheel duplex edge cover (47) is housed, gap bridge minor sprocket (20) and gap bridge hinge wheel (21) on Xiao's axle (43) at the turn back back vent of unitor (19) of back vent;

1 small sheave (28) clothes hanger (11) each side is housed in 5) the clothes hanger trustship (27) to be stuck in the clothes hanger trustship (27) with spring clip.

The shockproof multifunction folding bicycle of 2 miniature energy according to claim 1, it is characterized in that: middle pipe turn back unitor (3) or (5), by the short axis of cone (30), outside thread tube head (31), T shape slip Xiao's sheet (32), Xiao's axle (33) and middle connection pipe coupling nut (34) etc. are formed, the mesopore of outside thread tube head (31) is linked to be by two sections, its inlet The initial segment is the taper hole of tapering slightly, taper hole is by outer big to interior little, be straight hole with small-bore a section of communicating subsequently, its diameter is small-bore identical with taper hole, and pair of openings Xiao groove arranged on the straight hole tube wall, connection is managed coupling nut (34) in being with on the middle connection pipe stage casing (4), its pitch is identical with outside thread tube head (31), there is the short axis of cone (30) at middle connection pipe two ends, stage casing (4), the taper hole tapering of its tapering and outside thread tube head (31) is complementary, the axis of cone is by outer little and interior big, the larger diameter end of the short axis of cone (30) have an elevated scapula exceed in connection manage the external diameter in stage casing (4), at the short axis of cone (30) axial centre facing cut opening Xiao groove is arranged, its width is identical with straight hole Xiao groove of outside thread tube head (31), its end of T shape slip Xiao's sheet (32) is embedded in respectively in above-mentioned two Xiao's grooves, will lack the axis of cone (30) and T shape slip Xiao's sheet (32) Xiao Lian with Xiao's axle (33).

The shockproof multifunction folding bicycle of 3 miniature energy according to claim 1, it is characterized in that: back vent is turned back unitor (19) by convex joint (42) and the back vent female fitting (44) of turning back of turning back of the back vent of mutual scarf, with back vent Xiao's axle (43) Xiao Lian that turns back, make it can turn back mutually and do not break away from both concavo-convex scarf positions.

The shockproof multifunction folding bicycle of 4 miniature energy according to claim 1, it is characterized in that: antivibration spring unitor (9) is welded in saddle standpipe (7) top by antivibration spring seat cushion (7A), and bonding pad (35) was packed on the antivibration spring seat cushion (7A) with bolt (36) before its front end of antivibration spring (8) was welded with antivibration spring; Antivibration spring (8) rear end is welded with antivibration spring rear bolt hole coupling ring (40), antivibration spring connects minor axis (37), its front end is a bolt, spinning is in the screw of antivibration spring rear bolt hole coupling ring (40), and being a minor axis screw plug, the rear end goes in the mesopore of antivibration spring outside thread tube head (41), connect minor axis (37) stage casing at antivibration spring and be with antivibration spring coupling nut (38), be subjected to antivibration spring to connect elevated scapula on the minor axis (37) and stop and do not break away from; Back vent transverse tube (29) is connected into one with antivibration spring when antivibration spring coupling nut (38) is tightened on the antivibration spring outside thread tube head (41), and back vent (23) is hung on the antivibration spring (8) together with trailing wheel (25); Otherwise the antivibration spring coupling nut (38) that gets loose just makes back vent transverse tube (29) break away from together with trailing wheel (25) and antivibration spring (8).

The shockproof multifunction folding bicycle of 5 miniature energy according to claim 1, it is characterized in that: its gap bridge minor sprocket (20) of secondary sprocket wheel speedup transmission and gap bridge hinge wheel (21) are loaded on back vent with big or small gap bridge sprocket wheel duplex edge cover (47) and turn back on Xiao's axle (43), though thereby trailing wheel jolts when guaranteeing to ride, and the driving chain strenuous status is unaffected.

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