CN201074004Y

CN201074004Y - Bidirectional symmetric bicycle

Info

Publication number: CN201074004Y
Application number: CNU2007201169898U
Authority: CN
Inventors: 王峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-09-14
Filing date: 2007-09-14
Publication date: 2008-06-18
Anticipated expiration: 2017-09-14

Abstract

The utility model discloses a bidirectional symmetry bicycle, wherein a fore fork is mounted on the shaft of a front wheel, a back fork is mounted on the shaft of a back wheel, the upper end of the fore fork is mounted with a steering device for changing the wheel rotation direction, the upper end of the steering device is mounted with a handle bar, the frame connects the front and back forks, which middle is mounted with a rotary saddle, a driving wheel assembly is mounted on the frame at the front of the lower saddle, the pedals are coaxial with the central shaft of the driving wheel assembly, a chain connects a back flywheel and the driving wheel assembly, the back flywheel is coaxial with the back wheel, and the upper end of the back fork is mounted with a steering device. The utility model can use one handle bar to steer, realize different steering directions, and use the rotation at one direction to move forward or backward and move bicycle forward or backward, to improve entertainment and flexibility. The utility model has novel design, compact structure, relativity and symmetry.

Description

The bi-directional symmetrical bicycle

Technical field

The utility model relates to a kind of bicycle, a kind of specifically bi-directional symmetrical bicycle.

Background technology

At present, present bicycle is through years development, and its function becomes better and approaching perfection day by day, also more brief practicality simultaneously, ordinary person by bike, its function only for ride instead of walk, manned, loading, lack certain alerting ability and recreational.

Summary of the invention

The purpose of this utility model is to overcome the above-mentioned middle weak point that exists, provide a kind of design ingenious, compact conformation, can bidirectional operation, comprise walking, turning etc., improve its alerting ability and recreational, and show a kind of relativism and symmetric bi-directional symmetrical bicycle.

In order to achieve the above object, the technical solution adopted in the utility model is: comprise front vehicle wheel, rear wheel, front fork, back vent, vehicle frame, vehicle seat, stretcher and chain, front fork is installed on the axle of front vehicle wheel, back vent is installed on the axle of rear wheel, the direction reverser that can change the wheel revolutions direction is installed in the front fork upper end, handlebar is installed in the upper end of direction reverser, vehicle frame couples together front fork and back vent, indexable vehicle seat is installed in the middle part, drive wheel assemblies is installed in the vehicle seat bottom slightly on the vehicle frame in the place ahead, the spigot shaft coaxle of stretcher and drive wheel assemblies, chain connects rear flywheel and drive wheel assemblies, rear flywheel and rear wheel are coaxial, and direction reverser is installed in the back vent upper end.

The utility model has the advantages that:

Because the utility model has been installed direction reverser at the handlebar place, make same handlebar turn to and to realize different turn direction, the drive wheel assemblies of particular design has replaced original preceding flywheel, various combination by pin can be realized advancing or retreating by unidirectional rotation, vehicle seat changes rotary type into, and front fork, back vent all can be installed handlebar, can realize the forward walking of bicycle or swing to walking, recreational, alerting ability and displaying have been increased like this, greatly.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the structural representation of the utility model drive wheel assemblies 9;

Fig. 3 is the structural representation of the utility model direction reverser 5;

Fig. 4 is the structural representation of the utility model handlebar 6;

The specific embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

By Fig. 1-Fig. 4 as can be known, the utility model comprises front vehicle wheel 1, rear wheel 2, front fork 3, back vent 4, vehicle frame 7, vehicle seat 8, stretcher 10 and chain 11, front fork 3 is installed on the axle of front vehicle wheel 1, back vent 4 is installed on the axle of rear wheel 2, the direction reverser 5 that can change the wheel revolutions direction is installed in front fork 3 upper ends, handlebar 6 is installed in the upper end of direction reverser 5, vehicle frame 7 couples together front fork 3 and back vent 4, indexable vehicle seat 8 is installed in the middle part, drive wheel assemblies 9 is installed in vehicle seat 8 bottoms slightly on the vehicle frame 7 in the place ahead, the center shaft 13 of stretcher 10 and drive wheel assemblies 9 is coaxial, chain 11 connects rear flywheel 12 and drive wheel assemblies 9, rear flywheel 12 and rear wheel 2 are coaxial, and direction reverser 5 is installed in back vent 4 upper ends.

Drive wheel assemblies 9 comprises the center shaft 13 that is installed on the vehicle frame 7, a stretcher 10 is respectively installed at two ends, outside on it, symmetry is installed two left unidirectional lock 21 and right unidirectional locks of being made up of ratchet 14 in the middle of two stretchers 10, right helical wheel 15 and left helical wheel 17 are installed between the two, described two helical wheels intermesh by a finishing bevel gear cuter 16, on the center shaft 13 in the middle of two helical wheels, drive sprocket 20 is housed, chain 11 is installed on it, at left helical wheel 17 and left unidirectional lock 21, leave left pin-and-hole 22 and right pin-and-hole 19 respectively between right helical wheel 15 and the right unidirectional lock 14, at left helical wheel 17, right helical wheel 15 and 20 of drive sprockets leave coaxial pin-and-hole 18.

Direction reverser 5 is installed in the upper end of front fork 3 respectively, in the direction reverser 5, forward gear 25 on the forward axle 23 and 26 engagements of the reverse gear on the inversion axis 24, the lower end contacts with front fork 3, and a pulley 27 is installed, cable wire 28 is installed on the pulley 27, and forward axle 23 and inversion axis 24 upper ends all have the hole, and handlebar 6 is installed in this hole.

Direction reverser 5 is installed on the back vent 4 simultaneously, and two pulleys 27 are by cable wire 28 interconnection.

Briefly introduce its principle of work below.

Direction reverser 5 has been installed at handlebar 6 places, when handlebar 6 is installed in forward axle 23 places, directly drives front fork 3 by handlebar 6 and turns round; When handlebar 6 was installed in inversion axis 24 places, the engagement change rotation direction through reverse gear 26 and forward gear 25 drove front forks 3 by handlebar 6 and turns round, and the hand of rotation of just turn round this moment direction and handlebar 6 is opposite.Can increase recreational and alerting ability like this.Because front and rear fork all is equipped with identical direction reverser 5, handlebar 6 can be installed in arbitrary position, drives pulley 27 by cable wire 28 and realizes the interlock that front and rear wheel turns to.Rotation vehicle seat 8 to adapt to different direct of travels, has embodied recreational and symmetry.

Drive wheel assemblies 9 has replaced original preceding flywheel, can realize advancing or retreating by unidirectional rotation by the various combination of pin, below provides four kinds of states that can keep balance:

Front truck is 6 a forward, and vehicle seat is at rear side, left pin-and-hole A22 latch, the left side latch of pin-and-hole B18;

Front truck is 6 oppositely, and vehicle seat is at rear side, left pin-and-hole A22 latch, the right side latch of pin-and-hole B18;

Rear bar 6 is a forward, and vehicle seat is in the front side, right pin-and-hole A19 latch, the left side latch of pin-and-hole B18;

Rear bar 6 is oppositely, and vehicle seat is in the front side, right pin-and-hole A19 latch, the right side latch of pin-and-hole B18;

In addition, all can not keep balance.Only take first and third below for example illustrates its principle of work, remaining is similar.

In first kind of situation, front truck is 6 a forward, and handlebar 6 directions are identical with turn direction.Vehicle seat is at rear side, and suitable cyclist grasps handlebar 6 forwardly.Left side pin-and-hole A22 latch, power reaches left helical wheel 17 by the unidirectional lock 21 in a left side because the left side latch of pin-and-hole B18, so with power transmission to drive sprocket 20, reach rear flywheel 12 by chain 11, realize advancing.Like this, when car was toppled on the left of the cyclist, the cyclist made the wheel steering left side according to its balance left-handed turning handlebar of training on existing bicycle, and then car is advanced to the left front, thereby contact to earth center and people's car weight heart of car are on the same vertical curve and reach state of equilibrium; When car as the same when topple on the cyclist right side.

In the third situation, rear bar 6 is a forward, and handlebar 6 directions are identical with turn direction.Vehicle seat is in the front side, and suitable cyclist grasps handlebar 6 forwardly.Right pin-and-hole A19 latch, power reaches right helical wheel 15 by the unidirectional lock 14 in the right side because the left side latch of pin-and-hole B18, so with power transmission to drive sprocket 20, reach rear flywheel 12 by chain 11, realize advancing.Like this, when car was toppled on the left of the cyclist, the cyclist made the wheel steering left side according to its balance left-handed turning handlebar of training on existing bicycle, and then car is advanced to the left front, thereby contact to earth center and people's car weight heart of car are on the same vertical curve and reach state of equilibrium; When car as the same when topple on the cyclist right side.

Other two kinds of situations can draw the conclusion of balance according to similar analysis.

Claims

1. bi-directional symmetrical bicycle, comprise front vehicle wheel (1), rear wheel (2), front fork (3), back vent (4), vehicle frame (7), vehicle seat (8), stretcher (10) and chain (11), it is characterized in that: front fork (3) is installed on the axle of front vehicle wheel (1), back vent (4) is installed on the axle of rear wheel (2), the direction reverser (5) that can change the wheel revolutions direction is installed in front fork (3) upper end, handlebar (6) is installed in the upper end of direction reverser (5), vehicle frame (7) couples together front fork (3) and back vent (4), indexable vehicle seat (8) is installed in the middle part, drive wheel assemblies (9) is installed in vehicle seat (8) bottom slightly on the vehicle frame in the place ahead (7), the center shaft (13) of stretcher (10) and drive wheel assemblies (9) is coaxial, chain (11) connects rear flywheel (12) and drive wheel assemblies (9), rear flywheel (12) and rear wheel (2) are coaxial, and direction reverser (5) is installed in back vent (4) upper end.

2. bi-directional symmetrical bicycle according to claim 1, it is characterized in that: described drive wheel assemblies (9) comprises the center shaft (13) that is installed on the vehicle frame (7), a stretcher (10) is respectively installed at two ends, outside on it, symmetry is installed two left unidirectional lock (21) and right unidirectional locks of being made up of ratchet (14) in the middle of two stretchers (10), right helical wheel (15) and left helical wheel (17) are installed between the two, described two helical wheels intermesh by a finishing bevel gear cuter (16), on the center shaft (13) in the middle of two helical wheels, drive sprocket (20) is housed, chain (11) is installed on it, at left helical wheel (17) and left unidirectional lock (21), leave left pin-and-hole (22) and right pin-and-hole (19) respectively between right helical wheel (15) and the right unidirectional lock (14), in left helical wheel (17), leave coaxial pin-and-hole (18) between right helical wheel (15) and drive sprocket (20).

3. bi-directional symmetrical bicycle according to claim 1, it is characterized in that: described direction reverser (5) is installed in the upper end of front fork (3) respectively, in the direction reverser (5), forward gear (25) on the forward axle (23) and the engagement of the reverse gear (26) on the inversion axis (24), the lower end contacts with front fork (3), and a pulley (27) is installed, and pulley (27) is gone up cable wire (28) is installed, forward axle (23) and inversion axis (24) upper end all have the hole, and handlebar (6) is installed in this hole.

4. bi-directional symmetrical bicycle according to claim 1 is characterized in that: described direction reverser (5) is installed on the back vent (4) simultaneously, and two pulleys (27) are interconnected by cable wire (28).