CN200974601Y

CN200974601Y - Bicycle

Info

Publication number: CN200974601Y
Application number: CN 200620134872
Authority: CN
Inventors: 苗晋河; 耿绪华
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-12-01
Filing date: 2006-12-01
Publication date: 2007-11-14
Anticipated expiration: 2016-12-01

Abstract

The utility model discloses a bicycle using a novel dynamic transmission device which comprises a foot cane, a large gear, a driving shaft, a driven shaft, a small gear and a small chain wheel. The foot cane and the large gear are connected with the driving shaft, the small gear and the small chain wheel are connected with the driven shaft, the large gear meshes the small gear and the small chain wheel drives a back wheel of a bicycle through a chain or directly drives the back wheel. The bicycle of the utility model has the notable advantages that the speed of the bicycle is greatly improved, the speed ratio between a gear disc and a gear roller of the prior bicycle can be changed through the small gear and the small chain wheel of the dynamic transmission middle device and the speed of a traditional bicycle and a mini bicycle is dramatically enhanced.

Description

A kind of bicycle

Technical field

The utility model relates to a kind of bicycle, especially a kind of bicycle that is provided with the new type power transfer device.

Background technology

Along with the development of society, people's value orientation trends towards diversification.The diversification of value orientation has caused the appearance of individual sexual demand, begins to pursue unusual the various aspects people that live.Bicycle is as the common vehicle, the function that after the basic function that has satisfied the vehicle, has also had the consumption demand of satisfying people's personalization, the bicycle of multiple style now occurred, wherein the bicycle of miniaturization has become a big consumption hot spot.It is exactly that wheel has diminished that the bicycle miniaturization one of shows the most intuitively, and the direct result that wheel diminishes is exactly that speed is slack-off, the problem of bicycle as the function reduction of the vehicle at this moment just occurred.But prior art does not provide effective method for addressing this is that, and this has brought inconvenience for people's life.With regard to common standard bicycle, sometimes also be to make people's speed of sensation slow, reason is exactly that the radius ratio of gear wheel and trailing wheel gear wheel is all smaller.For the miniaturization bicycle, trailing wheel is also smaller, thereby makes people feel that sometimes speed is slow, and the same distance of passing by need be than using traditional bicycle to expend more time.Summary is got up, prior art has the shortcoming that speed ratio is little or backgear ratio is less of gear wheel and trailing wheel, and standard bicycle can not satisfy the requirement that speed further improves, and the bicycle speed of miniaturization is littler, though have novel characteristics, reduction arranged as the function of the vehicle.

The utility model content

Problem to be solved in the utility model is exactly that the gear wheel of standard bicycle and the radius ratio of trailing wheel cause speed ratio big inadequately inadequately greatly, and the velocity ratio of miniaturization bicycle is less, uses the many problems of miniaturization bicycle time consumption.

In order to realize the purpose of this utility model, the technical scheme that the utility model provides is: the utility model provides a kind of bicycle with new type power transfer device, the torque transfer of this bicycle comprises that pin turns, big gear wheel, imput shaft, driven shaft, miniature gears, minor sprocket, pin turns with big gear wheel and is connected with imput shaft, miniature gears is connected with driven shaft with foreign steamer, minor sprocket is a gear, big gear wheel and pinion, minor sprocket is by chain drive bicycle rear or direct drive trailing wheel.

Pin turns that be connected with imput shaft with big gear wheel can be for integral type also can be the compound type setting, and pin turns and can make as a wholely with big gear wheel or imput shaft in other words, also can make respectively then and connects by screw or alternate manner.The setting that is connected of miniature gears and minor sprocket and driven shaft is same as pin and turns and the be connected setting of big gear wheel with imput shaft.The axle sleeve of driven shaft can be connected by the axle sleeve of locating plate and imput shaft, and driven shaft also can be fixed on other position of bicycle, such as the back vehicle frame.Big gear wheel and miniature gears are by being connected with a joggle.Minor sprocket be gear and by chain to the trailing wheel transferring power; Miniature gears also can the direct drive bicycle rear.

Further, big gear wheel is an inner gear, engagement in big gear wheel and the miniature gears.

The technical scheme that provides by the utility model, can draw and the utlity model has obvious advantage: the speed of bicycle significantly improves, by the middle device miniature gears of transmission of power and the use of minor sprocket, can overcome the velocity ratio problem of smaller of the gear wheel of the chain wheel of existing bicycle and trailing wheel, so just can improve the speed that has bicycle now greatly.Below in conjunction with the drawings and specific embodiments the utility model is described in further details.

Description of drawings

Fig. 1 is the plan structure scheme drawing of the power drive of preferred embodiment of the present utility model;

Fig. 2 is the structural representation of looking squarely of the power drive of preferred embodiment of the present utility model.

The specific embodiment

Fig. 1 is the plan structure scheme drawing of the torque transfer of preferred embodiment of the present utility model, 1 turns (pin turns the part) for pin, 2 is big gear wheel, in the present embodiment, big gear wheel 2 is an inner gear, 3 is imput shaft, pin turn 1 and big gear wheel 2 be arranged on the imput shaft 3,6 is miniature gears, 5 be minor sprocket, and minor sprocket 5 and miniature gears 6 can be made as one, become independent parts, also can be made as two independently parts, minor sprocket 5 is connected with trailing wheel gear wheel (not shown) by the chain (not shown).Driven shaft axle sleeve 9 and imput shaft axle sleeve 8 are respectively applied for protection and fixedly driven shaft 4 and imput shaft 3; in the present embodiment; driven shaft axle sleeve 9 is connected by locating plate 7 with imput shaft axle sleeve 8, and driven shaft 4 can be fixed on the imput shaft axle sleeve 8 by driven shaft axle sleeve 9 and locating plate 7.When using the utility model, pin turns 1 and drives big gear wheel 2, because big gear wheel 2 and miniature gears 6 engagements, big gear wheel 2 Drive pinions 6 rotate, and miniature gears 6 drives minor sprocket 5 and rotates, and minor sprocket 5 drives trailing wheel gear wheel (not shown) by the chain (not shown).Because the use of miniature gears 6 and minor sprocket 5, the speed of big gear wheel 2 and trailing wheel gear wheel (not shown) can change.If the radius ratio of big gear wheel 2 and miniature gears 6 is 3: 1, the radius ratio of foreign steamer 5 and trailing wheel gear wheel (not shown) is 2: 1, miniature gears 6 is the same with the rotating speed of minor sprocket 5, big gear wheel 6 rotated for six weeks so, trailing wheel gear wheel (not shown) will rotate a week, then take turns the gear wheel (not shown) and rotate a week, trailing wheel also will rotate a week, and the speed that just can overcome standard bicycle of the use by miniature gears 6 and minor sprocket 5 can not further improve the low problem of speed that the wheel with the miniaturization bicycle causes for a short time faster like this.

Fig. 2 is the structural representation of looking squarely of the power drive of preferred embodiment of the present utility model, in Fig. 2,1 turns (pin turns the part) for pin, 2 is big gear wheel, and big gear wheel is an inner gear, and 3 is imput shaft, pin turn 1 and big gear wheel 2 all be connected on the imput shaft 3,4 is driven shaft, and 5 is minor sprocket, and minor sprocket is a gear.In this embodiment, transmission device is the chain (not shown).7 is locating plate, and locating plate 7 is connecting imput shaft axle sleeve 8 and driven shaft axle sleeve (not demonstrating among Fig. 2) in this embodiment.In Fig. 2 and big gear wheel engagement and the miniature gears that drives minor sprocket 5 blocked by foreign steamer 5, demonstrate.

In embodiment of the present utility model, minor sprocket can not be connected with the gear wheel of bicycle rear by chain, but minor sprocket directly and trailing wheel gear wheel engagement or by the transmission device of other gear as the centre, can make the bicycle miniaturization also can reach good result of use equally like this.

It should be noted that at last: above embodiment is only in order to explanation the technical solution of the utility model but not limit it, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement the technical solution of the utility model, and these modifications or be equal to replacement and also can not make amended technical scheme break away from the spirit and scope of technical solutions of the utility model.

Claims

1. bicycle, comprise torque transfer, it is characterized in that: described torque transfer comprises that pin turns, big gear wheel, imput shaft, driven shaft, miniature gears, minor sprocket, pin turns with big gear wheel and imput shaft are coaxial and is connected, miniature gears is connected with minor sprocket and driven shaft are coaxial, big gear wheel and pinion, minor sprocket is connected with bicycle rear by chain or directly is connected with trailing wheel.

According to claim 1 the book bicycle, it is characterized in that: described big gear wheel is an inner gear, and big gear wheel and miniature gears are connected with a joggle in being.

3. bicycle according to claim 1 and 2 is characterized in that: the axle sleeve of described imput shaft and the axle sleeve of described driven shaft are fixed on the locating plate.