CN203528730U

CN203528730U - Step-type bike

Info

Publication number: CN203528730U
Application number: CN201320607116.2U
Authority: CN
Inventors: 于成伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-09-21
Filing date: 2013-09-21
Publication date: 2014-04-09
Anticipated expiration: 2023-09-21

Abstract

The utility model provides a step-type bike. The step-type bike comprises a frame, a front wheel, a rear wheel, a front fork, a handle, gear transmission mechanisms, a saddle and a luggage rack and is characterized in that the two transmission mechanisms are arranged on the left side and the right side of the rear wheel respectively and are respectively formed by a sector gear and an overrunning clutch internally meshed with the sector gear, each sector gear does circular-arc rotating motion along a range smaller than 150 degrees back and forth under the action of back-and-forth waggling of pedals and foot bars, the wheels are driven by the transmission mechanisms on the left and right sides alternatively, and returning is alternatively achieved through seesaws. A speed change mechanism is arranged in a hub of the rear wheel, and speed change is achieved manually through a servo motor and a remote controller of the servo motor or is achieved automatically through centrifugal force of an automatic cable winding device. Compared with a bike driven by chains, the step-type bike is simple in structure, speed change can be conveniently achieved, gravity of human bodies is fully utilized, the saddle does not to be clamped by legs and is wide, and a rider can feel more comfortable.

Description

A kind of rider propulsive bicycle

One, technical field

The utility model relates to a kind of bicycle, especially a kind of rider propulsive bicycle.

Two, background technology

General bicycle pedal is made circular-rotation, and when left and right pedal is during in a vertical plane, moment is zero, belongs to firmly dead point; And when left and right pedal is during in a horizontal surface, although moment is maximum,, also maximum from the distance of crotch due to stressed pedal, step on or difficultly.The circular movement of both feet, requires bicyclist must ride on saddle, and buttocks area of thrust surface are little, and hip and perineum part are easily pressed pain.

Three, summary of the invention

The purpose of this utility model: be in order to overcome the weak point of general chain gear bicycle, a kind of more comfortable, bicycle that the efficiency of riding is higher is provided.

The technical solution of the utility model is: a kind of rider propulsive bicycle, by vehicle frame, front and back wheel, front fork, handlebar, gear drive, saddle, baggage rack etc., formed, it is characterized in that having at the right and left of trailing wheel the transmission device meshing in a quadrant gear and overriding clutch, quadrant gear is under the waggle of pedal and treadle, the circular arc that is less than back and forth 150 ° rotates, and the transmission device driven wheel of the right and left, dependence seesaw alternately reset.The front end of treadle and the axle of pedal is fixedly connected with, rear end is fixedly connected with sector shaft in transmission device, sector shaft and vehicle frame are dynamically connected by bearing rotary, quadrant gear and sector shaft be connected to one, with the imput shaft of overriding clutch in engagement, the driven shaft of overriding clutch is fixedly connected with hind axle, hind axle is rotationally connected with bearing seat, is fixedly connected with and is integrated with trailing wheel Decorative drum by bearing with vehicle frame, and the fulcrum of seesaw is fixed on vehicle frame, two ends are connected with the treadle stage casing of the right and left respectively by stay cord.

A rider propulsive bicycle, is characterized in that the Decorative drum of trailing wheel and hind axle are rotationally connected, and has automatic transmission in Decorative drum.The shell of the servomotor in speed-changing mechanism is fixedly connected with Decorative drum, motor shaft is connected with the traction screw cap on tooth rest as lead screw, tooth rest is with spline and Decorative drum sliding block joint, compensating-gear shaft is fixedly connected with tooth rest, planetary wheel I, planetary wheel II, planetary wheel III is connected to one and is rotationally connected by bearing and compensating-gear shaft, driven gear I is fixedly connected with tooth rest, planetary wheel I and driven gear I remain engagement, driven gear II is fixedly connected with tooth rest, sun wheel I, sun wheel II is connected to one and is fixedly connected with hind axle, the remote controller of servomotor is arranged on handlebar.Speed-changing mechanism is provided with five gears altogether, two neutrals wherein, three forward gears: slow block, smooth-going shelves, fast block.

A kind of rider propulsive bicycle according to claim 2, it is characterized in that replacing servomotor with automatic strand cable device and spring, spring I withstands tooth rest in one end, the other end withstands screw I, screw I is withstood Decorative drum, strand cable device is by cable, strand cable rod, strand cable device frame, steel ball, steel ball pocket, elliptical ring, lifter plate, spring II, screw I I forms, strand cable device frame is fixedly connected with Decorative drum, strand cable rod and strand cable device frame are rotationally connected, two strands of cables hitch tooth rest, synthetic one rear strand cable rod that is wound around, hitch again steel ball, elliptical ring and strand cable rod are connected to one, spring II withstands lifter plate in one end, screw I I is withstood in one end, screw I I withstands strand cable device frame, screw can regulating spring degree of tightness, lifter plate is pushed down elliptical ring, the rotation of elliptical ring slidably reciprocates lifter plate in strand cable device frame, steel ball can slidably reciprocate in steel ball pocket, steel ball pocket is fixedly connected with Decorative drum.The speed-changing mechanism of this kind of pure machinery does not have neutral, only has three forward gears.

Principle of work of the present utility model: according to the mechanics transmission principle of lever, gear mechanism and free-wheel clutch principle, when pedal and treadle move down and drive overriding clutch to be rotated in the forward, transmission device acting, drives wheel to advance.When the treadle that pin is stepped on the left side moves down, the treadle on seesaw and stay cord pull-up the right resets, and the overriding clutch on the right oppositely departs from, and the treadle on the left side moves down while causing seesaw to swing to amplitude peak, and left foot is just stepped on motionless, now under right crus of diaphragm, steps on; Vice versa.Bicyclist's both feet are alternately trampled continuously, and treadle has shaken quadrant gear and has been less than back and forth the rotation of 150 °, and the overriding clutch of the right and left advances with regard to continuous drive bicycle.Because both legs are stepping type motions, so both legs needn't be clamped saddle, also just saddle can be widened, improve cyclist's buttocks comfort level, be more suitable for riding in women.

In speed-changing mechanism, because sun wheel I is less than planetary wheel II, sun wheel II, equal planetary wheel III, planetary wheel I is less than again driven gear I and this two gears remain engagement, so planetary wheel plays deceleration and increases moment.

When the speed of a motor vehicle is very fast, automatically the centnifugal force that the steel ball on strand cable device produces has surpassed the pressure of spring I, and pull-up strand cable rod rotates and tooth rest slides, and the elliptical ring on strand cable rod rotates 0---in the time of 90 °, elliptical ring up pushes up lifter plate, and now spring II plays inhibition; Rotate 90 °---lifter plate return in the time of 180 °, now spring II plays power-assisted effect; Spring II has ensured that tooth rest can be not resident at neutral gear position.Strand cable rod rotates 180 ° of positions of just tooth rest having been moved to smooth-going shelves or quick shelves.Screw can regulating spring degree of tightness.

The beneficial effects of the utility model: compare with the bicycle of monolateral chain gear, have advantages of comfortable, laborsaving, the efficiency of riding is high.

Four, accompanying drawing explanation

Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.In figure, 1. pedal, 2. treadle, 3. quadrant gear, 4. sector shaft, 5. the imput shaft of overriding clutch, 6. the driven shaft of overriding clutch, 7. hind axle, 8. trailing wheel Decorative drum, 9. seesaw, 10. stay cord, 11. servomotors, 12. tooth rests, 13. compensating-gear shafts, 14. planetary wheel I, 15. planetary wheel II, 16. planetary wheel III, 17. driven gear I, 18. driven gear II, 19. sun wheel I, 20. sun wheel II, 21. spring I, 22. screw I, 23. cables, 24. strand cable rods, 25. strand cable device framves, 26. steel balls, 27. steel ball pockets, 28. elliptical rings, 29. lifter plates, 30. spring II, 31. screw I I.

Fig. 1 is bicycle integral structure schematic diagram of the present utility model.

Fig. 2 is gear drive schematic diagram of the present utility model.

Fig. 3 is the structural representation of tooth rest, driven gear, compensating-gear shaft.

Fig. 4 the utility model at a slow speed when shelves trailing wheel flower-drum axial section schematic diagram.

The axial section schematic diagram of trailing wheel flower-drum when Fig. 5 is the smooth-going shelves of the utility model.

Fig. 6 be with spring and automatically strand cable device replace the axial section schematic diagram of the trailing wheel flower-drum when the quick shelves of the utility model after servomotor.

Fig. 7 is the structural representation of automatic strand cable device.

Five, the specific embodiment

The utility model rider propulsive bicycle as shown in Figures 1 to 7, the right and left at trailing wheel has the transmission device meshing in a quadrant gear and overriding clutch, quadrant gear is under the waggle of pedal and treadle, be less than back and forth the rotation of 180 °, the transmission device driven wheel of the right and left, dependence seesaw alternately reset.In trailing wheel Decorative drum, there is automatic transmission, rely on the manual speed change of servomotor and remote controller thereof, or rely on the centnifugal force automatic speed changing of automatic strand cable device.

Rider propulsive bicycle of the present utility model, simple in structure, speed change is convenient, has fully looked after the requirement of human motion anatomy, take full advantage of human bady gravitational, improved the efficiency of riding, both legs need not be clamped saddle, and saddle is wider, therefore, bicyclist is more comfortable, is especially suitable as city public bicycle.

Claims

1. a rider propulsive bicycle, comprise vehicle frame, front and back wheel, front fork, handlebar, gear drive, saddle, baggage rack, it is characterized in that having at the right and left of trailing wheel the transmission device of engagement in a quadrant gear (3) and overriding clutch (5), quadrant gear (3) is under the waggle of pedal (1) and treadle (2), the circular arc that is less than back and forth 150 ° rotates, and the transmission device driven wheel of the right and left, dependence seesaw (9) and stay cord (10) alternately reset.

2. a kind of rider propulsive bicycle according to claim 1, it is characterized in that the Decorative drum (8) of trailing wheel is inner has an automatic transmission, the shell of the servomotor in speed-changing mechanism (11) is fixedly connected with Decorative drum (8), motor shaft is connected with the traction screw cap on tooth rest (12) as lead screw, tooth rest (12) is with spline and Decorative drum (8) sliding block joint, compensating-gear shaft (13) is fixedly connected with tooth rest (12), planetary wheel I (14), planetary wheel II (15), planetary wheel III (16) is connected to one and is rotationally connected by bearing and compensating-gear shaft (13), planetary wheel I (14) and driven gear I (17) remain engagement, driven gear II (18) is fixedly connected with tooth rest (12), sun wheel I (19), sun wheel II (20) is connected to one and is fixedly connected with hind axle (7), the remote controller of servomotor (11) is arranged on handlebar.

3. a kind of rider propulsive bicycle according to claim 2, is characterized in that replacing servomotor with automatic strand cable device and spring, and spring I (21) withstands tooth rest (12) in one end, the other end withstands screw I (22), screw I (22) is withstood Decorative drum (8), and strand cable device is by cable (23), strand cable rod (24), strand cable device frame (25), steel ball (26), steel ball pocket (27), elliptical ring (28), lifter plate (29), spring II (30), screw I I (31) forms, and strand cable device frame (25) is fixedly connected with Decorative drum (8), and strand cable rod (24) is rotationally connected with strand cable device frame (25), and two strands of cables (23) hitch tooth rest, synthetic one rear strand cable rod (24) that is wound around, hitch steel ball (26), elliptical ring (28) is connected to one with strand cable rod (24) again, and spring II (30) withstands lifter plate in one end, screw I I (31) is withstood in one end, the other end of screw I I (32) withstands strand cable device frame (25), lifter plate (29) is pushed down elliptical ring (28), steel ball (26) can slidably reciprocate steel ball pocket (27) is inner, and steel ball pocket (27) is fixedly connected with Decorative drum (8).