CN205615658U

CN205615658U - Labor -saving bicycle

Info

Publication number: CN205615658U
Application number: CN201620450969.3U
Authority: CN
Inventors: 魏香云
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-05-18
Filing date: 2016-05-18
Publication date: 2016-10-05
Anticipated expiration: 2026-05-18

Abstract

The utility model relates to a driving, especially a labor -saving bicycle. Present bicycle has frame, front wheel, rear wheel, handlebar, saddle, is equipped with the sprocket between front wheel and the rear wheel on the frame, and through chain and the transmission of the epaxial ratchet looks of rear wheel, the sprocket is trampled through the crank and the running -board confession manpower of both sides. The mechanics characteristic of this kind of structure receives the restriction, and laborsaving effect is not good, and in addition, drive chain is fragile, and it is inconvenient to maintain. The utility model discloses a frame, front wheel, rear wheel, handlebar, saddle, its characterized in that: a depression bar to the place ahead extension respectively is equipped with to the rear wheel both sides, and two depression bars pass through the link gear and link to each other, and drive disk assembly and the transmission of rear wheel looks are passed through to the rear end of depression bar. The utility model discloses a swing drives wheel, the arm of force is long, and the moment of torsion is big, laborsaving increase, and have simple structure, low in cost, characteristics such as sturdy and durable are expected to become the upgrade product of current bicycle.

Description

A kind of labour-saving bicycle

Technical field

This utility model relates to a kind of bicycle, especially a kind of labour-saving bicycle.

Background technology

Existing bicycle is all to have vehicle frame, front-wheel, trailing wheel, handlebar, vehicle seat, and equipped with sprocket wheel on vehicle frame between front wheels and rear wheels, by the ratchet mechanism phase transmission on chain and hind axle, sprocket wheel is trampled for manpower by crank and the pedal of both sides.Obviously, the torque that the longest axle center to sprocket wheel of crank is formed is the biggest., the oversize trample action being unsuitable for people of crank, thus, the mechanical characteristic of this structure is restricted, and labor-saving effect is the best, additionally, driving chain is fragile, safeguards inconvenience.

Summary of the invention

The purpose of this utility model is to change the chain transmission mode of existing bicycle, it is provided that a kind of laborsaving, efficient, durable bicycle.

Solve the problems referred to above and be the technical scheme is that a kind of labour-saving bicycle of development, including vehicle frame, front-wheel, trailing wheel, handlebar, vehicle seat, it is characterized in that: described trailing wheel both sides are respectively equipped with a depression bar forwards extended, two depression bars are connected by link gear, and drive disk assembly and trailing wheel phase transmission are passed through in the rear end of depression bar.

Described link gear is a flexible cable, and the two ends of flexible cable connect the front end of two depression bars respectively, and the middle part of flexible cable is hung on the pulley of vehicle frame.

The core wheel of described trailing wheel is provided with tubular sleeve, the wheel shaft of trailing wheel is formed by an axostylus axostyle and one section of sleeve plug, the most a part of axostylus axostyle is inserted in sleeve pipe, the two ends of axle sleeve are rotatably assorted with axostylus axostyle, sleeve pipe respectively, are provided with the internal tooth of single-direction transmission in the middle part of axle sleeve, and the inner of sleeve pipe is relative with in the middle part of axle sleeve, axostylus axostyle and sleeve pipe are respectively provided with the ratchet of a single-direction transmission, two ratchets match with internal tooth respectively, and axostylus axostyle and sleeve pipe are rotatably assorted with vehicle frame respectively, and the outer end of axostylus axostyle and sleeve pipe is respectively fixedly connected with a depression bar.

Driving gear is installed in the rear end of described depression bar, and driving gear is before opposing rear wheels wheel shaft, by directive wheel and ratchet mechanism and trailing wheel phase transmission.

Driving gear is installed in the rear end of described depression bar, and driving gear is after opposing rear wheels wheel shaft, by directive wheel and ratchet mechanism and trailing wheel phase transmission.

Described front-wheel both sides are respectively equipped with a tommy bar, and tommy bar passes through ratchet mechanism and front-wheel phase transmission, the rear end of tommy bar and the phase transmission of depression bar front end.

Described tommy bar extends back, and every tommy bar all has two sections of rod members, and the connecting portion of two sections of rod members is provided with elongated slot, is connected by bar in elongated slot and is formed and can the bending of horizontal buckling save, and the rear end of tommy bar is hinged mutually with depression bar front end.

Described tommy bar upwardly extends, and tommy bar front is provided with extension spring or flexible cable is drawn mutually with vehicle frame, and tommy bar is drawn by flexible cable mutually with depression bar.

Described link gear is built with a set of bevel reduction gear set at the axle sleeve of wheel, the side gear that bevel reduction gear set has two to be rotatably assorted with wheel hub and the gear teeth are relative, it is meshed with at least one idler gear between two side gears, intermediate gear shaft is vertical with wheel hub and is fixedly connected with, two outward extending wheel discs of side gear are by ratchet and the internal tooth single-direction transmission of wheel axle sleeve, and be rotatably assorted with wheel axle sleeve, the each one end with a depression bar or tommy bar of outermost one section is fixedly connected with, and the wheel shaft two ends of wheel are crossed side gear outer end and are fixedly connected with vehicle frame respectively.

The beneficial effects of the utility model are: use fork to drive wheel, the arm of force is long, moment of torsion is big, force-saving synergistic, and has simple in construction, cheap, the feature such as sturdy and durable, especially with front and back driving and special link gear, structure more optimizes, labor-saving effect is the most prominent, it is expected to become the regeneration product of existing bicycle.

Accompanying drawing explanation

With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings.

Fig. 1 is the structural representation of the first embodiment；

Fig. 2 is the plan structure schematic diagram of the first embodiment；

Fig. 3 is the structural representation of the second embodiment；

Fig. 4 is the structural representation of the third embodiment；

Fig. 5 is the structural representation of the 4th kind of embodiment；

Fig. 6 is the plan structure schematic diagram of the 4th kind of embodiment；

Fig. 7 is the structural representation of the 5th kind of embodiment；

Fig. 8 is the structure diagram of the 5th kind of embodiment；

Fig. 9 is the partial structurtes axonometric chart of the 6th kind of embodiment；

Figure 10 is the partial structurtes sectional view of the 6th kind of embodiment；

Figure 11 is the drive mechanism schematic diagram of the 6th kind of embodiment.

In figure visible: 1. vehicle frame, 2. front-wheel, 3. handlebar, 4. vehicle seat, 5. trailing wheel, 6. wheel shaft, 7. depression bar, 8. flexible cable, 9. pulley, 10. ratchet, 11. axostylus axostyles, 12. sleeve pipes, 13. driving gears, 14. directive wheels, 15. tommy bars, 16. bending joints, 17. extension springs, 18. drag-lines, 19. idler gears, 20. transmission, 21. side gears, 22. axle sleeves.

Detailed description of the invention

The first embodiment: as shown in Figure 1 and Figure 2, vehicle frame 1 is mainly made up of two triangle pipe support, and equipped with handlebar 3 and vehicle seat 4 on vehicle frame 1, vehicle frame rear and front end is respectively provided with front-wheel 2 and trailing wheel 5.Described trailing wheel 5 both sides are respectively equipped with a depression bar forwards extended 7, two depression bars 7 are connected by link gear, the form of link gear is a lot, and this example, it is recommended that flexible cable 8 two ends are connected with the outer end of two depression bars, is hung in the middle part of flexible cable on the pulley 9 of vehicle frame 1.Drive disk assembly and trailing wheel 5 phase transmission are passed through in the rear end of depression bar 7.The core wheel of described trailing wheel 5 is provided with tubular sleeve, the wheel shaft 6 of trailing wheel 5 is formed by an axostylus axostyle 11 and one section of sleeve pipe 12 plug-in mounting, the most a part of axostylus axostyle 11 is inserted in sleeve pipe 12, the two ends of axle sleeve are rotatably assorted with axostylus axostyle 11, sleeve pipe 12 respectively, the internal tooth of single-direction transmission it is provided with in the middle part of axle sleeve, the inner of sleeve pipe 12 is relative with in the middle part of axle sleeve, axostylus axostyle 11 and sleeve pipe 12 are respectively provided with the ratchet of a single-direction transmission, two ratchets match with internal tooth i.e. ratchet 10 respectively, axostylus axostyle 11 and sleeve pipe 12 are rotatably assorted with vehicle frame 1 respectively, and the outer end of axostylus axostyle 11 and sleeve pipe 12 is respectively fixedly connected with a depression bar 7.

During use, trample side depression bar and axostylus axostyle 11 or sleeve pipe 12 can be driven to rotate, drive axle sleeve and vehicle wheel rotation by ratchet.Meanwhile, opposite side depression bar is pullled and upwards lifting by flexible cable 8, and ratchet and pawl is disengaged from and mutually slides.This process is repeated, two depression bar 7 up-down alternative motions, can constantly drive bicycle to move ahead.

The second embodiment: as it is shown on figure 3, on the basis of previous embodiment, add driving gear 13 between depression bar 7 and hind axle.The wheel shaft 6 of trailing wheel 5 is provided with ratchet 10, and driving gear 13 is located at ratchet 10 front, driving gear 13 and ratchet 10 by directive wheel 14 engaged transmission.The rear end of depression bar 7 is fixed on driving gear 13, and front end is connected by flexible cable 8, and flexible cable 8 is hung on the pulley 9 at vehicle frame 1 crossbeam.When riding, trampling depression bar 7 and make driving gear 13 rotate, driving gear 13 drives directive wheel 14 and ratchet 10 to rotate, and ratchet 10 transfers lockup state to and drives wheel to rotate the most forward.Meanwhile, offside depression bar 7 is pulled upwardly by flexible cable 8, drives offside driving gear 13, directive wheel 14, ratchet 10 to rotate backward, and offside ratchet 10 transfers free state, the such alternatively swinging of depression bar 7 to, and bicycle can be made persistently to move ahead.

The third embodiment: as shown in Figure 4, on the basis of previous embodiment, driving gear 13 is located at the rear of ratchet 10, move after driving gear 13 core wheel, the front position of depression bar 7 is constant, so that depression bar 7 length increases, the present embodiment is compared the previous embodiment arm of force and increased, increase the moment of torsion of driving gear 13, ride the most laborsaving.

4th kind of embodiment: as shown in Figure 5, Figure 6, on the basis of previous embodiment, change rear wheel drive is Two-wheeled.In addition to two depression bars 7 are installed in trailing wheel 5 both sides, front-wheel 2 both sides there are also installed two tommy bars 15.I.e. arranging ratchet mechanism at the wheel shaft 6 of front-wheel 2, front-wheel 2 both sides respectively fill a tommy bar 15, and tommy bar 15 extends back, and tommy bar 15 is by ratchet mechanism and front-wheel 2 phase transmission, and the rear end of tommy bar 15 is hinged mutually with depression bar 7 front end.Different from trailing wheel 5, front wheel 2 has turning function concurrently, can deflect with the rotation of handlebar 3.I.e. drive 7 need of depression bar of trailing wheel 5 to swing up and down, and drive the tommy bar 15 of front-wheel 2 in addition to swinging up and down, also need to swing with front-wheel 2.To this end, the rear end of tommy bar 15 need to be connected by movable part with depression bar 7 front end, the connected mode such as such as universal drive shaft, ball pivot, flexible cable.Every tommy bar 15 all has two sections of rod members, and the connecting portion of two sections of rod members is provided with elongated slot, connected by bar in elongated slot formed can the bending joint 16 of horizontal buckling, solve the combination problem of the driving means with turning function front-wheel and the driving means of trailing wheel.From mechanical knowledge, this Two-wheeled is not the simple transplanting of back wheel driving gear, but preferably make use of the space between front and back wheel, is equivalent to increase further the arm of force, increases the driving force of bicycle, makes to ride more laborsaving.

5th kind of embodiment: as shown in Figure 7, Figure 8, for making the attachment structure between tommy bar 15 and depression bar 7 simplify further, on the basis of previous embodiment, tommy bar 15 is changed into upwardly extending by the present embodiment, and tommy bar 15 is drawn by flexible cable 8 phase with depression bar 7.For ensureing the concordance of driving direction, the tommy bar of homonymy is connected with a set of flexible cable with depression bar, and the tommy bar of offside is connected with another set of flexible cable with depression bar, and this allows for depression bar 7 when swinging alternatively up and down, can pull tommy bar 15 alternatively swinging front and back.As shown in the second embodiment, longitudinal flexible cable can make two depression bars 7 swing alternatively up and down, and alternatively swinging before and after two tommy bars 15 such as realization, then need plate stem 15 return.As shown in Figure 8 a, two tommy bar 15 tops arrange spring 17 phase and draw, and as shown in Figure 8 b, two tommy bar 15 tops arrange drag-line 18 phase and draw, and spring 17 or drag-line 18 all can be by tommy bar 15 returns.The present embodiment will act on the power transmission on depression bar to trailing wheel, pass through flexible cable by power transmission to front-wheel simultaneously, change the single wheel drive of previous embodiment into two-wheel drive, be equivalent to increase further the arm of force, increase the driving force of bicycle, make to ride more laborsaving, and simplify in the 4th kind of embodiment the power drive mechanism between depression bar and tommy bar.The driving means of trailing wheel is applied on front-wheel by the present embodiment the most simply, but is optimizing while power transmission, the problem that the driving means of the driving means and trailing wheel that preferably solve to have turning function front-wheel combines.

6th kind of embodiment: as shown in Fig. 9, Figure 10, Figure 11, on the basis of previous embodiment, the drive mechanism to bicycle, the link gear between particularly two depression bars or two tommy bars has done further improvement.Described link gear is built with a set of bevel reduction gear set at the axle sleeve 22 of front-wheel and/or trailing wheel, the side gear 21 that bevel reduction gear set has two to be rotatably assorted with wheel hub and the gear teeth are relative, it is meshed with at least one idler gear 19 between two side gears 21, idler gear 19 axle is vertical with wheel hub 6 and is fixedly connected with, two outward extending wheel discs of side gear 21 are divided into three sections, one section of internal tooth single-direction transmission by transmission 20 i.e. ratchet with wheel axle sleeve 22, another section is rotatably assorted preferably by bearing with wheel axle sleeve 22, the each one end with a depression bar 7 or tommy bar 15 of outermost one section is fixedly connected with, wheel shaft 6 two ends of wheel are crossed side gear 21 outer end and are fixedly connected with vehicle frame 1 respectively.Here bevel gear can be the bevel gear of standard, it can also be the ring gear of two uniform gear teeth in medial surface periphery, the idler gear 19 being meshed with side gear can be bevel gear, it is also possible to be spur gear, and its lateral surface is preferably a sphere or the arc surface around wheel shaft 6.Idler gear 19 can arrange multiple around wheel shaft 6, it is also possible to is to be mounted side by side and intermeshing odd number gear wheels.As long as the structure of the side gear 21 that the rotation of a side gear 21 reversely can be passed to opposite is the most all the technical scheme of equivalent.

During use, when the depression bar of side or tommy bar swing to a direction, another depression bar or tommy bar will swing round about.Particularly when the ratchet mechanism of a depression bar or tommy bar is in driving stroke, the ratchet mechanism of another depression bar or tommy bar is in sliding stroke, and return is very easy to.Obviously, this structure had both been suitable to trailing wheel, was also suitably for front-wheel.When front-wheel, both can use the mechanism of tommy bar horizontal, be also suitably for the structure that tommy bar is erect.Special recommendation trailing wheel uses two horizontal depression bars, is linked by hoist cable in depression bar front end, and front-wheel uses two to erect tommy bar, and tommy bar upper end is drawn with depression bar front end mutually by rope, and the lower end Connectable umbrella gear train linkage structure of tommy bar, structure more simplifies, and service behaviour is more preferable.

Claims

1. a labour-saving bicycle, including vehicle frame, front-wheel, trailing wheel, handlebar, vehicle seat, it is characterized in that: described trailing wheel both sides are respectively equipped with a depression bar forwards extended, and two depression bars are connected by link gear, and drive disk assembly and trailing wheel phase transmission are passed through in the rear end of depression bar.

A kind of labour-saving bicycle the most according to claim 1, it is characterised in that: described link gear is a flexible cable, and the two ends of flexible cable connect the front end of two depression bars respectively, and the middle part of flexible cable is hung on the pulley of vehicle frame.

A kind of labour-saving bicycle the most according to claim 1, it is characterized in that: the core wheel of described trailing wheel is provided with tubular sleeve, the wheel shaft of trailing wheel is formed by an axostylus axostyle and one section of sleeve plug, the most a part of axostylus axostyle is inserted in sleeve pipe, the two ends of axle sleeve respectively with axostylus axostyle, sleeve pipe is rotatably assorted, the internal tooth of single-direction transmission it is provided with in the middle part of axle sleeve, the inner of sleeve pipe is relative with in the middle part of axle sleeve, axostylus axostyle and sleeve pipe are respectively provided with the ratchet of a single-direction transmission, two ratchets match with internal tooth respectively, axostylus axostyle and sleeve pipe are rotatably assorted with vehicle frame respectively, the outer end of axostylus axostyle and sleeve pipe is respectively fixedly connected with a depression bar.

A kind of labour-saving bicycle the most according to claim 1, it is characterised in that: driving gear is installed in the rear end of described depression bar, and driving gear is before opposing rear wheels wheel shaft, by directive wheel and ratchet mechanism and trailing wheel phase transmission.

A kind of labour-saving bicycle the most according to claim 1, it is characterised in that: driving gear is installed in the rear end of described depression bar, and driving gear is after opposing rear wheels wheel shaft, by directive wheel and ratchet mechanism and trailing wheel phase transmission.

A kind of labour-saving bicycle the most according to claim 1, it is characterised in that: described front-wheel both sides are respectively equipped with a tommy bar, and tommy bar passes through ratchet mechanism and front-wheel phase transmission, the rear end of tommy bar and the phase transmission of depression bar front end.

A kind of labour-saving bicycle the most according to claim 6, it is characterized in that: described tommy bar extends back, every tommy bar all has two sections of rod members, and the connecting portion of two sections of rod members is provided with elongated slot, being connected by bar in elongated slot and formed and can the bending of horizontal buckling save, the rear end of tommy bar is hinged mutually with depression bar front end.

A kind of labour-saving bicycle the most according to claim 6, it is characterised in that: described tommy bar upwardly extends, and tommy bar front is provided with extension spring or flexible cable is drawn mutually with vehicle frame, and tommy bar is drawn by flexible cable mutually with depression bar.

A kind of labour-saving bicycle the most according to claim 1, it is characterized in that: described link gear is built with a set of bevel reduction gear set at the axle sleeve of wheel, the side gear that bevel reduction gear set has two to be rotatably assorted with wheel hub and the gear teeth are relative, it is meshed with at least one idler gear between two side gears, intermediate gear shaft is vertical with wheel hub and is fixedly connected with, two outward extending wheel discs of side gear are by ratchet and the internal tooth single-direction transmission of wheel axle sleeve, and it is rotatably assorted with wheel axle sleeve, each one end with a depression bar or tommy bar, outer end is fixedly connected with, the wheel shaft two ends of wheel are crossed side gear outer end and are fixedly connected with vehicle frame respectively.