CN2923506Y

CN2923506Y - Boosting device for bicycle

Info

Publication number: CN2923506Y
Application number: CNU2006200610323U
Authority: CN
Inventors: 孙代胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-06-30
Filing date: 2006-06-30
Publication date: 2007-07-18
Anticipated expiration: 2016-06-30

Abstract

The utility model relates to the bicycle technology field, and specifically refers to an aid device for a bicycle. The aid device comprises an aid box, a transmission gear which is provided on a frame axis, and a spring which cooperates with the transmission gear is provided on the frame axis. The aid box is provided with a gear, a flywheel, a rotating shaft and at least one spiral spring, the two ends of which are respectively fixed on the rotating shaft and the box body of the aid box, and the gear which is connected by a chain to the flywheel arranged on the back wheel axis and the flywheel are all fixed on the rotating shaft, and the flywheel thereon meshes and cooperates with the transmission gear. The aid box stores and releases energy by using the spiral spring arranged in the interior thereof, and when the spiral spring releases energy, the bicycle can be driven to run automatically. To sum up, the utility model has the advantages of simple structure, and flexibility and daintiness, and can drive the bicycle to run by using the spiral spring and does not need the electric power or other energy, and also has the advantages of environmental protection and energy conservation, and convenience and practicality.

Description

A kind of assisting device that is used on the bicycle

Technical field:

The utility model relates to the bicycle technical field, refers in particular to a kind of assisting device that is used on the bicycle.

Background technology:

Bicycle is one of vehicle of present environmental protection the most, also bicycle being carried out many at present transforms, as motor bicycle, it is that battery, motor and associated components are installed thereon, battery driven motor on it drives solo running, but the battery flying power of motor bicycle is limited, needs often to battery charge, and battery weight is bigger, makes motor bicycle relatively heavier.

The utility model content:

The purpose of this utility model is to provide a kind of assisting device that is used on the bicycle at the deficiencies in the prior art, and is light small and exquisite, and do not need assisting device is charged, and can drive solo running, environmental protection and energy saving behind the assisting device stored energy.

For achieving the above object, the utility model is achieved through the following technical solutions: assisting device comprises power-assist case, transmission gear, transmission gear is installed on the vehicle frame axle, the vehicle frame axle is fixed with a spring that cooperates with transmission gear, gear, flywheel, rotating shaft and at least one clockwork spring are installed in the described power-assist case, the two ends of clockwork spring are individually fixed on rotating shaft and the power-assist case, gear and flywheel all are fixed in the rotating shaft, gear connects flywheel in the rotating shaft and transmission gear engagement fit by chain with flywheel on being installed on rear vehicle shaft.

From technique scheme as can be seen, assisting device of the present utility model is mounted on the vehicle frame of bicycle, it comprises power-assist case, transmission gear, is provided with at least one elastomeric clockwork spring in the power-assist case, and the two ends of clockwork spring are individually fixed in the rotating shaft and casing of power-assist case, the power-assist casing is long-pending little, in light weight, be installed in and only take very little space on the vehicle frame, when not enabling assisting device, the bicycle of using the utility model assisting device can be used as common bicycle and uses light and flexible; The power-assist case is to utilize to be installed in its in-to-in clockwork spring savings and to release energy, release energy at clockwork spring and can drive then that bicycle travels automatically, when the people steps on bicycle and advances or in the descending highway section, stir control stalk, make the flywheel engagement in transmission gear and the rotating shaft, stepping on the rotating shaft that bicycle can drive on the power-assist case rotates, rotating shaft is rotated and is then tightened up clockwork spring, make clockwork spring distortion stored energy, can rotating shaft be locked by lockout mechanism after the clockwork spring stored energy, just unclamp rotating shaft at uphill road or when needing assisting device to drive solo running, the energy that clockwork spring discharges savings on it drives the rotating shaft rotation, rotating shaft is rotated by the flywheel that chain drives on the rear wheel, travels automatically thereby drive bicycle.In sum, the utility model is simple in structure, and is small and exquisite flexibly, and can utilize clockwork spring to drive solo running, and not need electrification or other energy, environmental protection and energy saving, convenient and practical.

Description of drawings:

Accompanying drawing 1 is running condition figure of the present utility model

Accompanying drawing 2 is for being equipped with the structural representation of a clockwork spring in the power-assist case of the present utility model

Accompanying drawing 3 is for being equipped with the structural representation of two clockwork springs in the power-assist case of the present utility model

Accompanying drawing 4 is the partial enlarged drawing of accompanying drawing 3

The specific embodiment:

Embodiment sees accompanying

drawing

1,2,3,4; a power-assist case 2 is installed on the vehicle frame 1 of bicycle; be provided with gear 6, flywheel 7, rotating shaft 8 and a clockwork spring 9 in the described power-assist case 2; the two ends of clockwork spring 9 are individually fixed on the casing of rotating shaft 8 and power-assist case 2; the clockwork spring 9 outer screened housings of can installing guarantee clockwork spring 9; gear 6 and flywheel 7 are fixed in the rotating shaft 8, and gear 6 connects with flywheel 11 on being installed on rear vehicle shaft by chain 10.

Described bicycle wheel disc 3 is installed on the vehicle frame axle 4, wheel disc 3 connects with flywheel 20 on the back axle by chain 18, also be fixed with on the vehicle frame axle 4 transmission gear 5 and one with and the spring 12 that cooperates of transmission gear 5, spring 12 is used to drive transmission gear 5 and slides to rotating shaft 8, makes flywheel 7 engagement fit in transmission gear 5 and the rotating shaft 8.

Described flywheel 7 all has the degree of dip of 5 degree with the driving cog of transmission gear 5, be that transmission gear 5 is smaller with the tooth depth that flywheel 7 faces a side mutually, flywheel 7 also is so, makes the driving cog on the transmission gear 5 be easy to be inserted between the driving cog of flywheel 7, makes things convenient for both clutches.

Also be hinged with a control stalk 13 and a joystick 14 on the described vehicle frame 1, the end of described control stalk 13 is forked, two forked ends all are equipped with roller 15, roller 15 cooperates with the medial surface that transmission gear 5 is taken turns, stir roller 15 that control stalk 13 can be by control stalk 13 ends with 5 groups of transmission gears from flywheel 7, transmission gear 5 is not meshed with flywheel 7, the manual control end of control stalk 13 cooperates with screens 16 on being installed on vehicle frame 1, control stalk 13 can be locked on the different positions by screens 16, thus the engagement of control transmission gear 5 and flywheel 7.

Described joystick 14 ends are forked, there is one section to be square in the rotating shaft 8 for the cross section, joystick 14 ends cooperate with this section rotating shaft, can be when joystick 14 terminal yokes are lived this section rotating shaft with rotating shaft 8 lockings, the manual control end of joystick 14 cooperates with screens 17 on being installed on vehicle frame 1, and joystick 14 can block the diverse location in screens 17.Certainly, also can a power-transfer clutch be installed in rotating shaft 8, joystick 14 is connected on the power-transfer clutch, rotating shaft 8 can not be rotated rotating shaft 8 lockings by power-transfer clutch, can be as long as reach with the effect of rotating shaft 8 lockings.

Among Fig. 3 shown in the embodiment 2, be provided with two clockwork springs 9 in the power-assist case 2, the two ends of clockwork spring 9 are individually fixed on the casing of rotating shaft 8 and power-assist case 2, certainly, a plurality of clockwork springs 9 also can be installed to increase the ability of power-assist case 2 stored energies in power-assist case 2.

Described clockwork spring 9 is located between gear 6 and the flywheel 7, conveniently is fixed and installs, and also can install change-gear set additional on gear 6, strengthens the bicycle performance.

It only is preferred embodiment of the present utility model that above institute is chatted, described joystick 14 also can be combined as a whole with control stalk 13, make with the mechanism of control transmission gear 5 clutches as the structure that will lock rotating shaft 8 and to connect into a link gear, when stirring or spurring joystick 14 locking rotating shafts 8, described link gear drives transmission gear 5 to be separated with flywheel 7, with so all equivalences of doing according to the described structure of the utility model claim, feature and principle change or decorate, be included in the utility model claim.

Claims

1, a kind of assisting device that is used on the bicycle, it is characterized in that: assisting device comprises power-assist case (2), transmission gear (5), transmission gear (5) is installed on the vehicle frame axle (4), vehicle frame axle (4) is fixed with a spring (12) that cooperates with transmission gear (5), gear (6) is installed in the described power-assist case (2), flywheel (7), rotating shaft (8) and at least one clockwork spring (9), the two ends of clockwork spring (9) are individually fixed on rotating shaft (8) and the power-assist case (2), gear (6) and flywheel (7) all are fixed in the rotating shaft (8), gear (6) connects with flywheel (11) on being installed on rear vehicle shaft by chain (10), flywheel (7) in the rotating shaft (8) and transmission gear (5) engagement fit.