CN106741486A - A kind of folding bicycle - Google Patents

Abstract

The present invention relates to a kind of folding bicycle, including front-wheel, trailing wheel, transmission system, front frame, Rear frame and attachment, trailing wheel is connected with transmission system, front-wheel is arranged in front frame, trailing wheel and transmission system are arranged in Rear frame, attachment are enclosed within front frame, and attachment can be slided with respect to front frame, and attachment are hinged with Rear frame；Folding bicycle of the invention in folded state in strip, front wheels and rear wheels side by side, therefore floor space is small, and can easily drag, and the place for being easy to people especially crowded in daily life place carries.

Description

A kind of folding bicycle

Technical field

The present invention relates to bicycle, especially a kind of folding bicycle.

Background technology

Folding bicycle due to can with stored collapsed the characteristics of more and more welcomed by the people, but now it is big on the market Partial folding bicycle floor space after folding is inconvenient to drag than larger, when Portable foldable bicycle is taken These shortcomings are especially protruded when public transport subway.

The content of the invention

The technical problem to be solved in the present invention is to provide that floor space after a kind of folding is small, convenient dragging folding voluntarily Car.

In order to solve the above technical problems, the technical scheme is that：A kind of folding bicycle, including front-wheel, trailing wheel and Transmission system, the trailing wheel is connected with the transmission system；The folding bicycle also includes front frame, Rear frame and junction surface Part；The front-wheel is arranged in the front frame, and the trailing wheel and the transmission system are arranged in the Rear frame；It is described to connect Close part to be enclosed within the front frame, the attachment can relatively described front frame slip；The attachment with it is described Rear frame is hinged.

Used as the further improvement of above-mentioned folding bicycle of the invention, the attachment pass through first with the Rear frame Rotating shaft is hinged, and the axis of the first rotating shaft is not parallel with the axis of the trailing wheel.

As the further improvement of above-mentioned folding bicycle of the invention, the front frame include front fork, head tube, upper bowl group, Lower bowl group and handlebar；The front fork includes vertical tube of front fork and fork blade；The vertical tube of front fork by upper bowl group and it is described under Bowl group is arranged in the head tube, and the handlebar is fixed on the top of the vertical tube of front fork, and the front-wheel is arranged on the front fork On leg；The attachment are enclosed within the head tube, and the attachment can be slided along the head tube, on the attachment Fluting and handle are provided with, by rotating the handle attachment can be made to clamp or loosen the head tube.

Used as the further improvement of above-mentioned folding bicycle of the invention, the front frame includes front fork and handlebar；Before described Fork includes vertical tube of front fork and fork blade, and the handlebar is fixed on the top of the vertical tube of front fork, and the front-wheel is before described In fork leg；The attachment include pedestal, sleeve pipe, upper bowl group and lower bowl group；The pedestal is hinged with the Rear frame；It is described Sleeve pipe is arranged in the pedestal by upper bowl group and the lower bowl group, and described sleeve pipe is enclosed within the vertical tube of front fork, institute Stating sleeve pipe can slide along the vertical tube of front fork；Described sleeve pipe is provided with sleeve pipe fluting, and pipe clamp is provided with described sleeve pipe, described Pipe clamp can clamp or loosen described sleeve pipe, so that described sleeve pipe clamps or loosen the vertical tube of front fork.

Used as the further improvement of above-mentioned folding bicycle of the invention, the Rear frame includes girder and seat pipe, the master Beam is hinged with the seat pipe.

Used as the further improvement of above-mentioned folding bicycle of the invention, the transmission system includes axis, left crank, right song Handle, the first sprocket wheel, the first chain and flywheel；The axis be arranged on the Rear frame on, the left crank be fixed on it is described in The left end of axle, the right crank is fixed on the right-hand member of the axis, and first sprocket wheel is fixed on the right crank, described to fly Wheel is arranged on the trailing wheel, and first sprocket wheel and the flywheel are connected by first chain.

Used as the further improvement of above-mentioned folding bicycle of the invention, the transmission system includes axis, left crank, right song Handle, the first sprocket wheel, the first chain, the second sprocket wheel, the 3rd sprocket wheel, countershaft, the second chain and flywheel；The axis is arranged on described In Rear frame, the left crank is fixed on the left end of the axis, and the right crank is fixed on the right-hand member of the axis, described One sprocket wheel is fixed on the axis, and the countershaft is arranged in the Rear frame, second sprocket wheel and the 3rd sprocket wheel It is fixed on the countershaft, the flywheel is arranged on the trailing wheel, first sprocket wheel and second sprocket wheel are by described First chain is connected, and the 3rd sprocket wheel and the flywheel are connected by second chain.

The beneficial effects of the invention are as follows：Floor space is small after folding for folding bicycle of the present invention, and can be light Dragging, therefore it is easy to people in the especially crowded place carrying in daily life place.

Brief description of the drawings

Fig. 1 is the front view of folding bicycle first embodiment deployed condition of the present invention and folded state；

Fig. 2 is the stereoscopic schematic diagram of folding bicycle first embodiment deployed condition of the present invention；

Fig. 3 is the A-A sectional views of folding bicycle first embodiment of the present invention shown in Fig. 2；

Fig. 4 is the B direction views of folding bicycle first embodiment of the present invention shown in Fig. 2；

Fig. 5 is schematic diagram of the folding bicycle first embodiment of the present invention in folding process shown in Fig. 4；

Fig. 6 is the upward view of folding bicycle first embodiment deployed condition of the present invention；

Fig. 7 is the left view of folding bicycle first embodiment folded state of the present invention；

Fig. 8 is the D direction views of folding bicycle first embodiment of the present invention shown in Fig. 6；

Fig. 9 is schematic diagram of the folding bicycle first embodiment of the present invention in folding process shown in Fig. 8；

Figure 10 is the C direction views of folding bicycle first embodiment of the present invention shown in Fig. 2；

Figure 11 is the E-E sectional views of folding bicycle fourth embodiment of the present invention shown in Figure 10.

Figure 12 is the action specification figure that folding bicycle first embodiment of the present invention is changed into folded state from deployed condition；

Figure 13 is the action specification figure that folding bicycle first embodiment of the present invention is changed into deployed condition from folded state；

Figure 14 is the left view of folding bicycle second embodiment deployed condition of the present invention；

Figure 15 is the left view of folding bicycle second embodiment folded state of the present invention；

Figure 16 is the stereoscopic schematic diagram of folding bicycle 3rd embodiment deployed condition of the present invention；

Figure 17 is the F partial enlarged drawings of folding bicycle 3rd embodiment of the present invention shown in Figure 16；

Figure 18 is the G-G sectional views of folding bicycle 3rd embodiment of the present invention shown in Figure 16；

Figure 19 is schematic diagram of the folding bicycle 3rd embodiment of the present invention in folding process shown in Figure 17；

Figure 20 is the stereoscopic schematic diagram of folding bicycle fourth embodiment deployed condition of the present invention；

Figure 21 is the H-H sectional views of folding bicycle fourth embodiment of the present invention shown in Figure 20.

Specific embodiment

With reference to the accompanying drawings and examples, specific embodiment of the invention is described in further detail.Hereinafter implement Example is not limited to the scope of the present invention for illustrating the present invention.Additionally, in invention described below each embodiment As long as involved technical characteristic does not constitute conflict and can just be mutually combined each other.

First embodiment：As depicted in figs. 1 and 2, a kind of folding bicycle, including front-wheel 4, trailing wheel 5 and transmission system 70, Trailing wheel 5 is connected with transmission system 70；The folding bicycle also includes front frame 1, Rear frame 2 and attachment 3；Front-wheel 4 is installed In front frame 1, trailing wheel 5 and transmission system 70 are arranged in Rear frame 2；Attachment 3 are enclosed within front frame 1, attachment 3 Can be slided with respect to front frame 1；Attachment 3 are hinged with Rear frame 2 by first rotating shaft 6, the axis and trailing wheel of first rotating shaft 6 5 axis is not parallel.

As shown in figure 3, front frame 1 includes front fork 11, head tube 12, upper bowl group 13, lower bowl group 14 and handlebar 15；Front fork 11 is wrapped Include vertical tube of front fork 111 and fork blade 112.Vertical tube of front fork 111 is arranged in head tube 12 by upper bowl group 13 and lower bowl group 14, handlebar 15 tops for being fixed on vertical tube of front fork 111, front-wheel 4 is arranged on fork blade 112.

As shown in Figure 4 and Figure 5, attachment 3 are enclosed within head tube 12, and attachment 3 can be slided along head tube 12, junction surface Part 3 is provided with fluting 31 and handle 32, by rotating handle 32 attachment 3 can be made to clamp or loosen head tube 12.

Rear frame 2 includes girder 21 and seat pipe 22, and girder 21 is hinged with seat pipe 22, and trailing wheel 5 is arranged on girder 21.Girder 21 are provided with girder joint 211, and girder joint 211 is hinged by first rotating shaft 6 with attachment 3, as shown in fig. 6, when folding When bicycle is in deployed condition, the axis X-X of first rotating shaft 6 is not parallel in the projection of horizontal plane with the axis Y-Y of trailing wheel 5, With certain angle m, the purpose for the arrangement is that make when folding bicycle be in folded state when front-wheel 4 and trailing wheel 5 can be with mistake Open, as shown in Figure 7.Attachment 3 are provided with the first latch segment 33, and girder joint 211 is provided with locking slot 2111, when the first lock When in the tight insertion of block 33 locking slot 2111, attachment 3 can not be rotated relative to girder 21, as shown in Figure 4；When the first latch segment 33 When being extracted from locking slot 2111, attachment 3 can be rotated relative to girder 21 around first rotating shaft 6, as shown in Figure 5.

As shown in Figure 8 and Figure 9, seat pipe 22 is hinged by the second rotating shaft 7 with girder 21, and girder 21 is provided with the second latch segment 8, seat pipe 22 is provided with seat pipe limited block 221, when seat pipe 22 is in deployed condition, stirs the second latch segment 8, makes the second locking Block 8 blocks seat pipe limited block 221, now because seat pipe limited block 221 can not by the stop of the latch segment 8 of girder 21 and second Move, therefore seat pipe 22 can not be rotated relative to girder 21；When the second latch segment 8 is stirred, the second latch segment 8 is released spacing to seat pipe During the stop of block 221, seat pipe 22 can be rotated relative to girder 21 around the second rotating shaft 7.

As shown in Figure 10 and Figure 11, transmission system 70 includes axis 701, left crank 702, right crank 703, the first sprocket wheel 71st, the first chain 72 and flywheel 77；Axis 701 is arranged on the girder 21 of Rear frame 2, and left crank 702 is fixed on axis 701 Left end, right crank 703 is fixed on the right-hand member of axis 701, and the first sprocket wheel 71 is fixed on right crank 703, after flywheel 77 is arranged on On wheel 5, the first sprocket wheel 71 and flywheel 77 are connected by the first chain 72.When left crank 702 and right crank 703 is rotated, Zuo Qu Handle 702 and right crank 703 drive the first sprocket wheel 71 to rotate, and the first sprocket wheel 71 is rotated by the flywheel driven 77 of the first chain 72, fly Wheel 77 drives trailing wheel 5 to rotate.

The folding process of the present embodiment folding bicycle：As shown in Figure 12 (a) and Figure 12 (b), rotating handle 32 makes engagement Part 3 loosens head tube 12, and the first latch segment 33 is extracted from locking slot 2111, and girder 21 is lifted then up, now engages Part 3 simultaneously engages with part 3 and is rotated around first rotating shaft 6 relative to girder 21, due to first rotating shaft 6 along the upward sliding of head tube 12 Axis is not parallel with the axis of trailing wheel 5, therefore when front-wheel 4 is close to trailing wheel 5, front-wheel 4 and trailing wheel 5 can stagger；Such as Figure 12 Shown in (c), attachment 3 are allowed to slide into the top of head tube 12, and allow front-wheel 4 and trailing wheel 5 to stir the second locking side by side, then Block 8, releases stop of second latch segment 8 to seat pipe limited block 221, then rotates seat pipe 22 around the second rotating shaft 7, make seat pipe 22 to Folded near the direction of girder 21, so that the folding of folding bicycle is completed, shown in such as Figure 12 (d).

The expansion process of the present embodiment folding bicycle：As shown in Figure 13 (a) and Figure 13 (b), around the rotation seat of the second rotating shaft 7 Pipe 22, makes seat pipe 22 be in deployed condition, then stirs the second latch segment 8, the second latch segment 8 is blocked seat pipe limited block 221； As shown in Figure 13 (c), girder 21 is rotated, the opposed splice components 3 of girder 21 is rotated around first rotating shaft 6, while making attachment 3 Along the slide downward of head tube 12, now front-wheel 4 and trailing wheel 5 are located remotely from each other；Attachment 3 are allowed to slide into the bottom of head tube 12, then First latch segment 33 is inserted into the locking slot 2111 of girder joint 211, rotating handle 32 makes attachment 3 clamp head tube 12, so that the expansion of folding bicycle is completed, shown in such as Figure 13 (d).

Second embodiment：The present embodiment and the difference of first embodiment are that the axis direction of first rotating shaft 6 is different.

As shown in figure 14, in the present embodiment, when folding bicycle is in deployed condition, the axis X-X of first rotating shaft 6 Axis Y-Y with trailing wheel 5 is not parallel in the projection of vertical plane, with certain angle m, in this case, when folding voluntarily Front-wheel 4 and trailing wheel 5 can also mutually stagger when car is in folded state, as shown in figure 15.The other structures of the present embodiment with First embodiment is identical, therefore does not remake repeat specification；The folding process of the present embodiment folding bicycle and launch process with the One embodiment is identical, therefore does not remake repeat specification.

3rd embodiment：The present embodiment and the structure and first that the difference of first embodiment is front frame 1 and attachment 3 The difference of embodiment.

As shown in Figure 16,17,18,19, in the present embodiment, front frame 1 includes front fork 11 and handlebar 15；Front fork 11 includes Vertical tube of front fork 111 and fork blade 112, handlebar 15 are fixed on the top of vertical tube of front fork 111, and front-wheel 4 is arranged on fork blade 112.

Attachment 3 include pedestal 34, sleeve pipe 35, upper bowl group 13 and lower bowl group 14；Sleeve pipe 35 is by upper bowl group 13 with Bowl group 14 is arranged in pedestal 34, and sleeve pipe 35 is enclosed within vertical tube of front fork 111, and sleeve pipe 35 can be slided along vertical tube of front fork 111；Sleeve pipe 35 are provided with sleeve pipe fluting 351, and pipe clamp 36 is provided with sleeve pipe 35, and pipe clamp 36 can clamp or loosen sleeve pipe 35, so that Sleeve pipe 35 clamps or loosens vertical tube of front fork 111.

Pedestal 34 is hinged by first rotating shaft 6 with girder joint 211, and pedestal 34 is provided with the first latch segment 33, when first When in the locking slot 2111 of the insertion girder of latch segment 33 joint 211, attachment 3 can not be rotated relative to girder 21；When the first lock When tight block 33 is extracted from the locking slot 2111 of girder joint 211, attachment 3 can be with respect to girder 21 around 6 turns of first rotating shaft It is dynamic.

The other structures of the present embodiment are identical with first embodiment, therefore do not remake repeat specification.

The folding process of the present embodiment folding bicycle：Opening pipe clamp 36 makes sleeve pipe 35 loosen vertical tube of front fork 111, first Latch segment 33 is extracted from locking slot 2111, and girder 21 is lifted then up, and now attachment 3 are upward along vertical tube of front fork 111 Slide, simultaneously engage with part 3 and rotated around first rotating shaft 6 relative to girder 21, due to the axis and the axis of trailing wheel 5 of first rotating shaft 6 It is not parallel, therefore when front-wheel 4 is close to trailing wheel 5, front-wheel 4 and trailing wheel 5 can stagger；Attachment 3 are allowed to slide into preceding fork stand The top of pipe 111, and allow front-wheel 4 and trailing wheel 5 to stir the second latch segment 8 side by side, then, the second latch segment 8 is released to seat pipe The stop of limited block 221, then rotates seat pipe 22 around the second rotating shaft 7, seat pipe 22 is folded near the direction of girder 21, so that complete Into the folding of folding bicycle.

The expansion process of the present embodiment folding bicycle：Seat pipe 22 is rotated around the second rotating shaft 7, seat pipe 22 is in and is launched shape State, then stirs the second latch segment 8, the second latch segment 8 is blocked seat pipe limited block 221；Girder 21 is rotated, makes girder 21 relative Attachment 3 are rotated around first rotating shaft 6, while make attachment 3 along the slide downward of vertical tube of front fork 111, now front-wheel 4 and trailing wheel 5 are located remotely from each other；Allow attachment 3 to slide into the bottom of vertical tube of front fork 111, the first latch segment 33 is then inserted into girder joint In 211 locking slot 2111, the pipe clamp 36 that closes makes sleeve pipe 35 clamp vertical tube of front fork 111, so as to complete the expansion of folding bicycle.

Fourth embodiment：The present embodiment is that transmission system 70 is different from the difference of first embodiment.

As shown in Figure 20 and Figure 21, in the present embodiment, transmission system 70 includes axis 701, left crank 702, right crank 703rd, the first sprocket wheel 71, the first chain 72, the second sprocket wheel 73, the 3rd sprocket wheel 74, countershaft 75, the second chain 76 and flywheel 77；In Axle 701 is arranged on the girder 21 of Rear frame 2, and left crank 702 is fixed on the left end of axis 701, and right crank 703 is fixed on axis 701 right-hand member, the first sprocket wheel 71 is fixed on axis 701, and countershaft 75 is arranged on the girder 21 of Rear frame 2, the second sprocket wheel 73 It is fixed on countershaft 75 with the 3rd sprocket wheel 74, flywheel 77 is arranged on trailing wheel 5, the first sprocket wheel 71 and the second sprocket wheel 73 pass through first Chain 72 is connected, and the 3rd sprocket wheel 74 and flywheel 77 are connected by the second chain 76.When left crank 702 and right crank 703 is rotated, Left crank 702 and right crank 703 drive the first sprocket wheel 71 to rotate by axis 701, and the first sprocket wheel 71 passes through the band of the first chain 72 Dynamic second sprocket wheel 73 is rotated, and the second sprocket wheel 73 drives the 3rd sprocket wheel 74 to rotate, and the 3rd sprocket wheel 74 is driven by the second chain 76 and flown Wheel 77 is rotated, and flywheel 77 drives trailing wheel 5 to rotate.The other structures of the present embodiment are identical with first embodiment, therefore do not remake weight Multiple explanation；The folding process and expansion process of the present embodiment folding bicycle are identical with first embodiment, therefore do not remake repetition Explanation.

The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.It is all within principle of the invention and spirit, that is made any repaiies Change, equivalent, improvement etc., should be included within the scope of the present invention.

Claims (7)

1. a kind of folding bicycle, including front-wheel (4), trailing wheel (5) and transmission system (70), the trailing wheel (5) and the transmission System (70) is connected；It is characterized in that：Also include front frame (1), Rear frame (2) and attachment (3)；Front-wheel (4) peace In the front frame (1), the trailing wheel (5) and the transmission system (70) are in the Rear frame (2)；It is described to connect Close part (3) to be enclosed within the front frame (1), the attachment (3) can relatively described front frame (1) slip；It is described to connect Part (3) is closed to be hinged with the Rear frame (2).

2. folding bicycle according to claim 1, it is characterised in that：The attachment (3) and the Rear frame (2) It is hinged by first rotating shaft (6), the axis of the first rotating shaft (6) is not parallel with the axis of the trailing wheel (5).

3. folding bicycle according to claim 1 and 2, it is characterised in that：The front frame (1) including front fork (11), Head tube (12), upper bowl group (13), lower bowl group (14) and handlebar (15)；The front fork (11) includes vertical tube of front fork (111) and front fork Leg (112)；The vertical tube of front fork (111) is by upper bowl group (13) and the lower bowl group (14) installed in the head tube (12) Interior, the handlebar (15) is fixed on the top of the vertical tube of front fork (111), and the front-wheel (4) is installed in the fork blade (112) On；The attachment (3) are enclosed within the head tube (12), and the attachment (3) can be slided along the head tube (12), institute State attachment (3) and be provided with fluting (31) and handle (32), the attachment can be made by rotating the handle (32) (3) clamp or loosen the head tube (12).

4. folding bicycle according to claim 1 and 2, it is characterised in that：The front frame (1) including front fork (11) and Handlebar (15)；The front fork (11) includes vertical tube of front fork (111) and fork blade (112), the handlebar (15) be fixed on it is described before The top of fork riser (111), the front-wheel (4) is on the fork blade (112)；The attachment (3) are including pedestal (34), sleeve pipe (35), upper bowl group (13) and lower bowl group (14)；The pedestal (34) is hinged with the Rear frame (2)；Described sleeve pipe (35) by upper bowl group (13) and the lower bowl group (14) in the pedestal (34), described sleeve pipe (35) is enclosed within institute State on vertical tube of front fork (111), described sleeve pipe (35) can be slided along the vertical tube of front fork (111)；Described sleeve pipe (35) is provided with Sleeve pipe is slotted (351), and pipe clamp (36) is provided with described sleeve pipe (35), and the pipe clamp (36) can clamp or loosen the set Pipe (35), so that described sleeve pipe (35) clamps or loosen the vertical tube of front fork (111).

5. folding bicycle according to any one of claim 1 to 4, it is characterised in that：The Rear frame (2) is including master Beam (21) and seat pipe (22), the girder (21) are hinged with the seat pipe (22).

6. folding bicycle according to any one of claim 1 to 5, it is characterised in that：Transmission system (70) bag Include axis (701), left crank (702), right crank (703), the first sprocket wheel (71), the first chain (72) and flywheel (77)；It is described Axis (701) is in the Rear frame (2), and the left crank (702) is fixed on the left end of the axis (701), described Right crank (703) is fixed on the right-hand member of the axis (701), and first sprocket wheel (71) is fixed on the right crank (703), On the trailing wheel (5), first sprocket wheel (71) and the flywheel (77) are by first chain for the flywheel (77) Bar (72) is connected.

7. folding bicycle according to any one of claim 1 to 5, it is characterised in that：Transmission system (70) bag Include axis (701), left crank (702), right crank (703), the first sprocket wheel (71), the first chain (72), the second sprocket wheel (73), Three sprocket wheels (74), countershaft (75), the second chain (76) and flywheel (77)；The axis (701) is installed in the Rear frame (2) On, the left crank (702) is fixed on the left end of the axis (701), and the right crank (703) is fixed on the axis (701) right-hand member, first sprocket wheel (71) is fixed on the axis (701), and the countershaft (75) is installed in the rear car On frame (2), second sprocket wheel (73) and the 3rd sprocket wheel (74) are fixed on the countershaft (75), flywheel (77) peace On the trailing wheel (5), first sprocket wheel (71) and second sprocket wheel (73) are connected by first chain (72), 3rd sprocket wheel (74) and the flywheel (77) are connected by second chain (76).