CN2191159Y - Case-type foldable bicycle - Google Patents

Abstract

The utility model relates to a case-type folding bicycle. The bicycle body (3) is connected into a U shape by two sections of folding rotary shafts (10); the front section can be rotated and folded along a rotary shaft (10); a back wheel (41) is connected with the axle of a gear train (29) by a fork (31) and can be folded forward, and the other end of the fork is connected with a support rod (40) and is fixed to a bicycle body; a driving system is provided with a drive gear (7) on a central axle (9) and directly drives the gear strain (29); a flywheel on the gear train drives a chain to drive; movable case-type rear case bodies whose bottoms are provided with casters are respectively arranged at the front and the back of the bicycle. The utility model can be freely folded, assembled, disassembled; the folding bicycle in the case is converted into a case-type travel trolley, and is suitable for outgoing carrying.

Description

Case-type foldable bicycle

The utility model relates to bicycle, relates in particular to a kind of collapsible box-type bike that is convenient for carrying.

Existing folding bicycle integral body is heavier, and travelling is carried still inconvenient.CN2039296U discloses a kind of box-type bike, and this Collapsible bicycle is equipped with a tank tower on trailing wheel, and the time spent can not fold car and be loaded in this case, is convenient to travel outdoors and carries, but still exist the car load degree of utilization not high, folding difficulty.

The utility model purpose is to overcome the deficiencies in the prior art, and a kind of car load degree of utilization height is provided, folding convenient, and outward appearance is good, the box-type folding bicycle of being more convenient for carrying.

The scheme that the utility model purpose realizes is that bicycle is to adopt " U " shape vehicle body frame that is connected into by folding rotating shaft by two joints, and the leading portion vehicle body can be done 90 ° of rotations along rotating shaft, makes front-wheel and headstock car fork divide corresponding recovery to draw close after the rotation.Trailing wheel is connected on the wheelset axle and can receives forward by the car fork and leans on, and car fork other end is connected to strut and is fixed on the vehicle body by strut, makes the trailing wheel location.Specifically can be one of rear vehicle fork to be turned be fixed on the vehicle body wheelset axle in the heart, the other end is pitched into rear axis and is fixed, one of rear wheel of rear vehicle fork connection upwards has the arc convex of trough of belt and is connected with trailing wheel stretching, extension strut with the blue support of folding type by the screw rod that penetrates in the groove, and screw rod can move up and down in groove; Trailing wheel two stretches the strut terminations and is connected to a snap ring alives that is inserted in vehicle body, and the horizontal stripe of giving prominence on the snap ring of living snaps in the hole clipping internal fixation of lifting card, and the lifting cartoon is crossed screw retention on pinion stand.When the lifting card being rotated 90 ° when horizontal stripe on the snap ring alive being taken off collude, down promote trailing wheel forward, the snap ring of living this moment moves down along vehicle body, and trailing wheel is received by closing up behind body bottom section to front-wheel, and the horizontal stripe on the snap ring of will living again snaps in positioning and fixing in the corresponding hole clipping of lifting card.Drive system adopts secondary drive, promptly drives driven wheel by axis, by driven wheel direct drive train of gears, is driven the flywheel on the trailing wheel and drives trailing wheel by chain by flywheel on the train of gears again and rotate.The utility model handlebar width equals to close up back bicycle head shrinking connecting-rod and sits width between the saddle shrinking connecting-rod, and handlebar can be inserted in and be fixed on two shrinking connecting-rods that have the elasticity card.

The scheme that the utility model is further realized, be that a movable detachable casing respectively is housed behind the car front truck, the rear box width can pack into after the folding bicycle and in the bottom cardan wheel is housed, preceding casing can cover that the bicycle that is inserted in after the folding makes it and the rear box that has a snap close fuses.

After the utility model adopts such scheme, the mounting or dismounting of the box-type folding bicycle of manufacturing freely, small and exquisite spirit dragon, light generous, it is many to carry the loan amount, need not any instrument, promptly dismantled and assembled in several minutes.Promptly become suitcase type tourism waggon after folding vanning, convenient going away carried.

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

Fig. 1 is the scheme drawing of the utility model embodiment.

Fig. 2 is the folding vanning of a Fig. 1 embodiment back scheme drawing.

Fig. 3 is the left view of Fig. 2.

Fig. 4 is the left view that Fig. 1 embodiment amplifies the trailing portion car body.

Fig. 5 is the folding rotating shaft scheme drawing of Fig. 1 embodiment.

Fig. 6 is the birds-eye view of Fig. 5.

Fig. 7 is the left view of Fig. 5.

Fig. 8 is that Fig. 1 embodiment amplifies the birds-eye view that the back trailing wheel stretches strut and snap ring alive.

Fig. 9 is that Fig. 1 embodiment amplifies body partial cutaway view before the back.

Figure 10 is that Fig. 1 embodiment amplifies back rear box part sectional view.

Among Fig. 1-10: 1, sit saddle 2, sit saddle shrinking connecting-rod 3, vehicle body 4, lifting card 5, rear box groove loose-leaf board 6, pinion stand 7, driven wheel 8, step on the Buddhist nun and block 9, axis 10, folding rotating shaft 11, headstock three-way pipe rotation seat 12, headstock connecting rod 13, collar bar 14, headstock shrinking connecting-rod 15, brake handle 16, handlebar 17, loose-leaf system chamber door 18, loose-leaf system case lid 19, preceding casing dish indigo plant 20, the blue support 21 of turning type, braking thigh 22, damping spring 23, wheel shaft 24, front-wheel 25, wheel fork 26, retaining mud 27, front vehicle fork 28, foot-operated 29, train of gears 30, parking pin 31, rear vehicle fork 32, cardan wheel 33, shelf sign indicating number hand 34, folding type case support 35, base plate 36, loose-leaf system Pallet 37, snap close 38, plug-in type case lid 39, snap ring 40 alive, trailing wheel stretches strut 41, trailing wheel 42, rear box 43, the casing collar 44, spherical snap close 45, the holder shelf

Wherein: vehicle body 3 is to insert mutually folding rotating shaft 10 by the two sections aluminium alloy materials in front and back to connect into " U " shape vehicle body frame, take off the card article in the folding rotating shaft 10 after, can drive vehicle body 3 leading portions and do 90 ° of rotations along rotating shaft 10 axle center.Vehicle body 3 back segments are fixed with axis 9, on be equipped with step on that the Buddhist nun blocks 8, pedal 28 and driven wheel 7, driven wheel 7 is steel-tooth plastomers, tooth on it directly with the pinion stand 6 that is fixed on the vehicle body 10 after a while on train of gears 29 wheel tooth buttons take the flywheel on the gear train 29 and by flywheels on 41 of the chain gear trailing wheels again.Rear vehicle fork 31 porose headgears go in train of gears 29 axle center to connect, the forked fork in other end is gone into trailing wheel 41 axle center and is fixed, this car fork 31 has the arc-shaped protrusions of trough of belt and is with damping spring, and the screw rod that penetrates in the groove is connected with support 34 of folding type case and trailing wheel stretching, extension strut 40 simultaneously.Two stretch strut 40 other ends is connected to the snap ring alive 39 that is inserted in vehicle body 3, and the snap ring 39 of living has outstanding horizontal stripe card.Above pinion stand 6, be fixedly connected with the lifting card 4 of saw-tooth grooves, the snap ring 39 outstanding horizontal stripes of living snapped in the groove of lifting card 4, even be attached thereto the joint part positioning and fixing that connects by screw; When lifting card 4 being rotated 90 ° of horizontal stripe card disengaging lifting card 4 grooves that make on the snap ring 39 alive, the spoke steel ring of trailing wheel 41 tramps with one's feet, do not allow its rotation, at this moment with hand steered firmly handlebar 16, and car load is moved backward, live snap ring 39 immediately along vehicle body 3 move down force trailing wheel 41 to vehicle body 3 bottoms move close up after, snap ring 39 horizontal stripes of will living again snap in positioning and fixing in lifting card 4 corresponding grooves.Rotate and swing handlebar 16 gathering front-wheels 24 to vehicle body 3 bottoms when vehicle body 3 leading portions being done 90 ° simultaneously, take off tubulose handlebar 16 and sit saddle 1, handlebar 16 two ends just can be inserted in headstock shrinking connecting-rod 14 and be sat saddle shrinking connecting-rod 2.

Embodiment respectively is equipped with a casing respectively among the figure in front and back.Before casing dish indigo plant 19 blue door 17 of loose-leaf system and the blue lid 18 of loose-leaf system are arranged, to casing two collars 43 are arranged by blue door 18 1, have two intervals to equal the circular hole of handlebar 16 width to the casing face relatively.With the collar 43 of preceding casing dish indigo plant 19 corresponding be inserted in to be fixed on the headstock connecting rod 12 can fix in the collar bar 13 and the blue support of turning type 20 bars.Rear box 42 has plug-in type case lid 38 on the top, and bottom notch and can inlaying is inserted on the back wheels of vehicle 41, at the bottom of the case is two and connects retractable rear box base plate 35 by loose-leaf and form that there are two ditch holes that vary in size but fuse rear box base plate 35 other ends.During use, base plate 35 is holded up and is made its ditch borehole jack go into to be fixed on folding type case support 34 and trailing wheel and stretches spherical snap close 44 on strut 40 opposite positions, and rear box 42 and bicycle are fixed.In rear box 42 both sides retractable aluminium alloy flat bar holder shelf 45 are housed, in the bottom four cardan wheels 32 are housed, retractable loose-leaf system Pallet 36 also is housed in casing, snap close 37 is equipped with in the outside, casing top.

Embodiment is when taking off forward and backward casing 19,42 and draw front and back wheel 24,41 among the figure, put down rear box base plate 35, folding loose-leaf system Pallet 36 is in the rear box inwall, car load is packed in the rear box 42, take off handlebar 16 and sit saddle 1 and brake handle 15 is packed in the rear box 42, down make two circular holes on it be inserted in headstock shrinking connecting-rod 14 and sit saddle shrinking connecting-rod 2 receiving in the blue door 17 of blue 19 loose-leaf systems of preceding casing dish after adherent, buckle again snap close 37 on the rear box make before and after casing fuse fixing.Again handlebar 16 crossovers are gone into headstock shrinking connecting-rod 14 and sit saddle shrinking connecting-rod 2 and stuck fixing, promptly become the tourism of suitcase type shown in Fig. 2,3 waggon by the jump ring on it.

Claims (7)

1, a kind of box-type folding bicycle, mainly be by vehicle body (3), handlebar (16), headstock, sit saddle (1), wheel, secondary transmission drive system and casing are formed, it is characterized in that vehicle body (3) is to be connected into by folding rotating shaft (10) by two joints, vehicle body (3) leading portion can be done 90 ° of rotations along rotating shaft (10), trailing wheel (41) is connected on train of gears (29) axle and can receives forward by car fork (31) and leans on, car fork (31) other end is connected to strut (40) and is fixed on the vehicle body (3), drive system is to load onto driven wheel (7) and direct drive train of gears (29) at axis (9), goes up flywheel by train of gears (29) again and drives by the flywheel that chain drives on the trailing wheel (41); A movable casing respectively is housed behind the car front truck, and rear box (42) width equals the width of folding aftercarriage, and in casing (42) bottom cardan wheel is housed, and preceding casing (19) can be made lid and be inserted in that bicycle makes it and rear box (42) fuses.

2, according to the described box-type folding bicycle of claim 1, it is characterized in that with trailing wheel (41) bonded assembly car fork (31) upwards an end arc-shaped protrusions of trough of belt is arranged and is connected with folding type case support (34) and trailing wheel stretching, extension strut (40) by the screw rod that penetrates in the groove, screw rod can move up and down in groove, and strut (40) in addition head is connected to a snap ring alive (39) that is inserted in vehicle body (3).

3, according to claim 1,2 described box-type folding bicycles, it is characterized in that going up the lifting card (4) that saw-tooth grooves is arranged by screw retention at pinion stand (6), the horizontal stripe of snap ring (39) projection of living can snap in positioning and fixing in lifting card (4) groove.

4, box-type folding bicycle according to claim 1, it is characterized in that rear box (42) bottom notch, at the bottom of the case being two connects retractable rear box base plate (35) by loose-leaf and forms, base plate has the ditch hole on (35), when base plate tilts to hold up with corresponding folding type case support in ditch hole (34) and trailing wheel stretching, extension strut (40) position on a spherical snap close (44) is respectively arranged.

5,, it is characterized in that rear box (42) both sides are equipped with retractable aluminium alloy flat bar holder shelf (45) and retractable loose-leaf system Pallet (36) is housed in casing (42) according to claim 1 or 4 described box-type folding bicycles.

6, according to claim 1 or 4 described box-type folding bicycles, casing dish indigo plant (19) has loose-leaf system chamber door (17) and case lid (18) before it is characterized in that.

7, box-type folding bicycle according to claim 1, the width that it is characterized in that handlebar (16) equal to draw back bicycle headstock shrinking connecting-rod (14) in and sit width between the saddle shrinking connecting-rod (2), and can be inserted in fixing with handlebar (16).

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