CN205554415U - City bicycle - Google Patents

Abstract

The utility model discloses a city bicycle, aim at becoming small, light in weight, the travel tool who easily rides. It divides preceding, back supporting wheel, and preceding supporting wheel is: set up the wheel support in the wheel annular slide track, car fork, support wheel carrier, supporting wheel, be connected to the wheel support on, big sprocket, the axletree drive axle housing of packing into, the flywheel links to each other with passive sprocket, big sprocket and flywheel are connected to the initiative chain, passive sprocket and wheel sprocket are connected to passive chain, or the flywheel gear links to each other, gear chain connects big sprocket and flywheel, the gear meshing is arrived on the annular internal gear. Back supporting wheel is: set up 4 sets of bearings and connect car fork and wheel on the axletree, big sprocket is established on the axletree, and the flywheel is with the sprocket is on car fork support passively, and the wheel sprocket is established on the axletree shell, and big sprocket and flywheel, passive chain passive sprocket of connection and wheel sprocket are connected to the initiative chain. Supporting on the wheel carrier even car fork, linking down and turn to fork and supporting wheel, pull rod one end is connected and is turned to the fork to one side, and the drag link is connected to the other end, handlebar even on the steering column, and the lower extreme passes through the universal joint and connects the drag link.

Description

City bicycles

Technical field

The utility model relates to a kind of subsidiary unicycle supporting wheel, and this support wheel both played a supportive role, and played again steering-effecting, less owing to supporting size of wheel, and cross-country power is not strong, so being exactly a kind of city bicycles in particular.

Background technology

Current existing unicycle only has a few peoples or professional to ride, because its balancing technique is difficult to grasp, even can ride, because there is no speed change gear, its riding speed is the most very limited, cannot function as traffic means of transport and enter the life of people, although existing ordinary bicycle technology maturation, there is the history of centuries, but himself weight, volume is big, be inconvenient to come in and go out the elevator of modern city high-rise apartment building, indoor with entering, and during trip, enter the boot of automobile, even that bicycle that can fold, people also can not accept turning from side to side of everyday folding.

Utility model content

The utility model purpose is to overcome existing unicycle people to be difficult to the riding-balance technology grasped, and enables people to conveniently ride, and improves speed, alleviate weight, reduce volume, save raw material, the city bicycles of people's life can be entered as a kind of traffic means of transport.The utility model is divided into front support wheel and rear support to take turns two kinds, front support wheel is by changing car wheel structure and drive mechanism, drive shaft is moved forward, chain drives, above-mentioned purpose is reached in conjunction with the support supporting wheel, rear support wheel is the principle turned to according to fork lift back wheel and the rear-axle steering city bicycles designed, and reaches above-mentioned purpose in conjunction with pair of chain drive, and both city bicycles are achieved by following technical proposals.

1, front support wheel city bicycles:

Existing unicycle is made up of wheel, fork, crank, vehicle seat.The technical solution of the utility model is, changes the traditional approach that wheel rotates on axletree, but rotates on wheel stand.Its structure is made up of, respectively five parts: wheel annular runner portions, wheel stand part, fork part, support wheel and support truck parts, running part.Annular slide track is set in the middle of wheel, wheel stand is supported in annular slide track, wheel stand is arranged above with rolling bearing, driving shaft shell, transmission bracket, its rolling bearing are supported on the inwall of annular slide track by wheel stand, makes annular slide track or even whole wheel rotate on wheel stand.Driving shaft shell is arranged on wheel stand outer radius, presses close to annular slide track inwall, and transmission bracket is arranged on driving shaft shell opposite, arranges connecting plate at driving shaft shell, and upper vertical connects fork, and front parallel connection supports wheel carrier, supports wheel and is arranged on the lower section supporting wheel carrier.The kind of drive of running part has two kinds, one is flywheel and follower to be fixed together, it is supported on outside annular slide track by transmission bracket, with chain, big sprocket wheel and flywheel are connected, follower and wheel sprocket connect, and big sprocket wheel flywheel driven and follower pull wheel sprocket band motor car wheel to move ahead simultaneously.Another kind is flywheel and gear to be fixed together, supporting gear by transmission bracket makes it ratcheting on ring gear, while connecting big sprocket wheel and flywheel, big sprocket wheel flywheel driven and gear synchronous rotation with chain, gear mesh ring gear band motor car wheel moves ahead.

2, rear support wheel city bicycles

The axletree of existing unicycle is fixed on wheel, and axletree two ends arrange two set bearings and connect axletree and fork, and crank axle shaft just can be walked before and after band motor car wheel.And the technical solution of the utility model is: arrange 4 set bearings on axletree, two set bearings of both end of which connect axletree and fork in the same old way, and middle two set bearings connect axletree and wheel, make wheel free to rotate on axletree, and this is the connection of wheel, axletree, fork.Its drive mechanism is, its flywheel be fixed on synchronous axial system on an axle by movable sprocket, the side of fork it is supported on fork support, another is connected on wheel hub by movable sprocket, when big sprocket wheel is by when actively chain pulls flywheel turns, two are pulled by passive chain by movable sprocket simultaneously, and wheel the most rotatably moves ahead, and this is running part.Support and knuckle section by supporting wheel carrier, steering fork, support wheel, brace, drag link, turning-bar, handlebar, universal joint, movable axis form.Support wheel carrier is hollow steel pipe, upper end connects fork, lower end connects steering fork, support wheel to be arranged on steering fork, one end movable axis of brace is connected in the axis hole of steering fork both sides, and other end movable axis is connected in the axis hole at drag link two ends, and turning-bar passes from supporting wheel carrier steel pipe center, upper end connects handlebar, and lower end is connected on drag link by universal joint.When rotating handlebar, turning-bar rotates with handlebar and twists drag link by universal joint simultaneously, and drag link promotes brace to drive steering fork to turn to.

The beneficial effects of the utility model are to ride conveniently, can enter the life of people, its simple in construction as a kind of traffic means of transport, general purpose accessory is many, easily fabricated, volume is little, lightweight, saves raw material, easily stored, adapt to enter the elevator of city high-rise apartment building, indoor, and the automobile trunk in trip.

Accompanying drawing explanation

1, front support wheel city bicycles accompanying drawing

Fig. 1 is that front support takes turns city bicycles general structure schematic diagram

Fig. 2 be Fig. 1 decompose fork, vehicle seat schematic diagram

Fig. 3 is that pillar wheel stand coordinates schematic diagram with annular slide track

Fig. 4 is that the annular slide track that Fig. 1 decomposes coordinates schematic diagram with wheel stand

Fig. 5 is that the support wheel carrier that Fig. 1 decomposes takes turns schematic diagram with supporting

Fig. 6 is the drive mechanism schematic diagram that Fig. 1 decomposes

Fig. 7 is that sprocket gear combines drive mechanism schematic diagram

In figure: annular slide track 1, spoke 2, rim 3, tire 4, wheel stand 5, rolling bearing 6, driving shaft shell 7, flywheel-bracket 8, connecting plate 9, fork 10, support wheel carrier 11, support wheel 12, drive shaft 13, big sprocket wheel 14, flywheel 15, by movable sprocket 16, actively chain 17, passive chain 18, wheel sprocket 19, regulation mouth 20, vehicle seat 21, crank 22, handlebar 23, gear 24, gear stand 25, ring gear 26, chain 27.

2, rear support wheel city bicycles accompanying drawing

Fig. 8 is that rear support takes turns city bicycles general structure schematic diagram

Fig. 9 is the drive mechanism enlarged diagram of Fig. 8

Figure 10 is the sectional view of Fig. 9

Figure 11 is that schematic diagram is taken turns in dual-gripper

In figure: axletree 28, big sprocket wheel 29, fork bearing 30, fork 31, wheel bearing 32, flywheel 33, by movable sprocket 34, fork support 35, wheel sprocket 36, wheel hub 37, actively chain 38, passive chain 39, crank 40, support wheel carrier 41, steering fork 42, support wheel 43, brace 44, drag link 45, turning-bar 46, handlebar 47, universal joint 48, movable axis 49, vehicle seat 50.

Detailed description of the invention

Below in conjunction with the accompanying drawings the utility model is further described:

1, front support wheel city bicycles:

Annular slide track 1 is connected on rim 3 by spoke 2, then is installed to tire 4 on rim constitute wheel, as shown in Fig. 4, Fig. 7.Its wheel stand 5 is arranged in annular slide track, and it is made up of, as shown in Fig. 4, Fig. 7 rolling bearing 6, driving shaft shell 7, (transmission bracket is divided into flywheel-bracket and gear stand) flywheel-bracket 8, gear stand 25, connecting plate 9.Its rolling bearing 6 is supported on the inwall of annular slide track 1 by wheel stand 5, makes annular slide track or even whole wheel to rotate on wheel stand, as Figure 1 and Figure 4.Driving shaft shell 7 is moved to the outer radius of wheel stand by center, presses close to annular slide track inwall, makes center of gravity move forward, and flywheel-bracket 8 and gear stand 25 are on the opposite of driving shaft shell 7, as shown in Fig. 1, Fig. 4, Fig. 7.The two ends of driving shaft shell 7 arrange connecting plate 9, and upper vertical connects fork 10, as shown in Fig. 1, Fig. 4, Fig. 2.Front parallel connection supports wheel carrier 11, supports wheel 12 and is arranged on the lower section supporting wheel carrier 11, and handlebar 23 is arranged on above support wheel carrier 11, as shown in Figure 1, shown in Figure 5.The kind of drive has two kinds, and a kind of mode is drive shaft 13 and big sprocket wheel 14 to be fixed together in loading driving shaft shell 7, as shown in Fig. 1, Fig. 6.By flywheel 15 with by movable sprocket 16, it is fixed together with axle and is installed on flywheel-bracket 8, as shown in Figure 1.Big sprocket wheel 14 pulls flywheel 15 to rotate by actively chain 17, is fixed together synchronous axial system by movable sprocket 16 and flywheel 15, is pulled by passive chain 18 the wheel sprocket 19 band motor car wheel being arranged on wheel annular slide track 1 to move ahead, as shown in Fig. 1, Fig. 6.Another way is flywheel 15 and gear 24 to be fixed together, and supports gear mesh to ring gear 26 with gear stand 25, and ring gear 26 is arranged on annular slide track 1.Connecting big sprocket wheel 14 and flywheel 15 with chain 27, while big sprocket wheel 14 flywheel driven 15 and gear 24 synchronous axial system, gear 24 is ratcheting to move ahead, as shown in Figure 7 to band motor car wheel on ring gear 26.

Big sprocket wheel 14 and flywheel 15 must be with outside chain drives, follower can use belt transmission, say, that with flywheel be fixed together can be by movable sprocket, it is also possible to be negative pulley wheel, wheel belt pulley can also be set on wheel annular slide track, carry out transmission and connection with belt.Wheel stand has multiple choices, such as pillar, as shown in Figure 3.Disc type, as shown in Figure 4.On wheel stand 5, bearing to be left adjusts mouth 20, in order to adjusts the gap between bearing and annular slide track, and is beneficial to assembling, as shown in Figure 4.Vehicle seat 21 arranges in fork 10, as shown in Figure 2.Crank 22 is arranged in drive shaft 13, as shown in Fig. 1, Fig. 6.Brake is arranged on support wheel carrier.

2, rear support wheel city bicycles:

The axletree of existing wheelbarrow and crank are all fixed on wheel, and axletree two ends arrange two set bearings and connect axletree and fork, and crank axle shaft just can be walked before and after band motor car wheel.The technical solution of the utility model is: arrange 4 set bearings on axletree 28, the fork bearing 30 of both end of which connects axletree 28 and fork 31 in the same old way, middle wheel bearing 32 connects axletree and wheel, make wheel freely rotatable on axletree 28, rather than securing a shaft on wheel, when now rotating axletree 28, wheel does not turns, can not move ahead, as shown in Figure 10 by band motor car wheel.This is accomplished by transmission device to pull wheel, described transmission device by big sprocket wheel, flywheel, formed by movable sprocket and wheel sprocket, as shown in Figure 9, Figure 10.Its connected mode is to be fixed on axletree 28 by big sprocket wheel, and flywheel 30 is fixed together with an axle with by movable sprocket 34, is supported on the side of fork 31 with fork support 35, and wheel sprocket 36 is connected on wheel hub 37, as shown in Fig. 8, Fig. 9, Figure 10.When axletree 28 drives big sprocket wheel 29, when pulling flywheel 33 to rotate by active chain 38, rotated by movable sprocket 34 with what flywheel 33 was fixed together simultaneously, pulled by passive chain 39 the wheel sprocket 36 band motor car wheel being arranged on wheel hub 37 to move ahead, as shown in Figure 9, Figure 10.Support and knuckle section by support wheel carrier 41, steering fork 42, support wheel 43, brace 44, drag link 45, turning-bar 46, handlebar 47, universal joint 48, movable axis 49 form.Supporting wheel carrier 41 is hollow steel pipe, upper end is connected in fork 31, lower end is connected on steering fork 42, support wheel 43 to be arranged on steering fork 42, one end movable axis 49 of brace 44 is connected in the axis hole of steering fork 42 both sides, and other end movable axis 49 is connected in the axis hole at drag link 45 two ends, and turning-bar 46 passes from the steel pipe supporting wheel carrier 41, upper end connects handlebar 47, and lower end connects drag link 45 by universal joint 48.When rotating handlebar 47, turning-bar 46 rotates through universal joint 48 with handlebar 47 and twists drag link 45, promotes brace 44 to drive steering fork 42 to turn to, as shown in Figure 8.Support wheel and can use single-wheel, as shown in Figure 8.Two-wheel can also be used, as shown in figure 11.Vehicle seat 50 is arranged on support wheel carrier, and brake is arranged in fork.

Claims (10)

1. a city bicycles, it includes wheel, big sprocket wheel, flywheel, chain, crank, vehicle seat, it is characterized in that arranging annular slide track in the middle of wheel, wheel stand is arranged in annular slide track, rolling bearing is set on wheel stand, driving shaft shell, transmission bracket, fork and support wheel carrier are connected on wheel stand, support wheel and be arranged on the lower section supporting wheel carrier, big sprocket wheel is connected in drive shaft load in driving shaft shell, flywheel links together with by movable sprocket, actively chain connects big sprocket wheel and flywheel, passive chain connects by movable sprocket and wheel sprocket, or flywheel is connected with belt pulley, on the annular slide track of wheel, belt pulley is set, connect and transmission with belt, or flywheel is connected with gear and is installed on gear stand, big sprocket wheel connects flywheel by chain, gear mesh is on ring gear.

City bicycles the most according to claim 1, it is characterized in that described wheel stand can be column type can also be collar plate shape.

City bicycles the most according to claim 1, is characterized in that described rolling bearing is supported on the inwall of annular slide track by wheel stand.

City bicycles the most according to claim 1, is characterized in that described driving shaft shell is arranged on the outer radius of wheel stand.

City bicycles the most according to claim 1, is characterized in that described ring gear is arranged on annular slide track.

City bicycles the most according to claim 1, is characterized in that described wheel sprocket is arranged on annular slide track.

City bicycles the most according to claim 1, is characterized in that described transmission bracket is divided into flywheel-bracket and gear stand.

City bicycles the most according to claim 1, is characterized in that described flywheel-bracket, gear stand are arranged on driving shaft shell opposite.

9. a city bicycles, it includes wheel, big sprocket wheel, flywheel, chain, crank, vehicle seat, it is characterized in that arranging bearing on axletree connects axletree fork and wheel, its running part is by big sprocket wheel, flywheel, formed by movable sprocket, wheel sprocket, big sprocket wheel is connected on axletree, flywheel is fixed together with by movable sprocket axle, the side of fork it is supported on fork support, wheel sprocket is connected on wheel hub, connecting big sprocket wheel and flywheel with active chain, passive chain connects by movable sprocket and wheel sprocket；Its support and knuckle section by supporting wheel carrier, steering fork, support wheel, brace, drag link, turning-bar, handlebar, universal joint, movable axis form, support wheel carrier upper end and connect fork, lower end connects steering fork, support wheel to be arranged on steering fork, brace one end movable axis is connected in the axis hole of steering fork both sides, and other end movable axis is connected in the axis hole at drag link two ends, and turning-bar passes in the middle of support wheel carrier, upper end connects handlebar, and lower end connects drag link by universal joint.

City bicycles the most according to claim 9, is characterized in that described support wheel is divided into single support to take turns or dual-gripper wheel.