CN2933362Y - Speed change device for three-wheeled wheelchair - Google Patents
Speed change device for three-wheeled wheelchair Download PDFInfo
- Publication number
- CN2933362Y CN2933362Y CN 200620098058 CN200620098058U CN2933362Y CN 2933362 Y CN2933362 Y CN 2933362Y CN 200620098058 CN200620098058 CN 200620098058 CN 200620098058 U CN200620098058 U CN 200620098058U CN 2933362 Y CN2933362 Y CN 2933362Y
- Authority
- CN
- China
- Prior art keywords
- wheel
- axletree
- speed change
- drum
- flywheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Automatic Cycles, And Cycles In General (AREA)
Abstract
The utility model discloses a selector device of third wheel wheelchair car, belonging to tricar and disabled car field, which is characterized in that a connecting sleeve 6 is arranged between a selector flywheel 7 and a coloured drum 3, an axletree 4 is fixed on a back wheel frame 11, a speed-changer 8 is fixed on the axletree 4. The selector flywheel 7 and the speed-changer 8 adopt six baffle fliers and speed-changer of bicycle which can make the tricar vary speed conveniently. The selector device has the advantages of strong versatility, good reciprocity, low cost and convenient maintenance and changing, which possesses good driving effect.
Description
Technical field
This utility model relates to the drive mechanism of three-wheel wheel Wheel-chair or tricycle, particularly a kind of three-wheel wheel Wheel-chair speed change gear.
Technical background:
The tricycle of multiple model and the lower limb disability people trip three-wheel wheel Wheel-chair of usefulness of riding instead of walk is arranged on the market, but all do not have speed change gear, run into when going up a slope very effort of operation, level road has thought soon again soon that not using is very much inconvenience.Common two-wheeled cycle has the gear speed change gear, and it is installed on the flower-drum of rear wheel, and its structure is compact.But if the gear speed change gear of two-wheeled cycle is applied in the tricycle, because the position of tricycle sprocket wheel and chain is in the centre of two rear wheels, preceding sprocket wheel and chain can't be corresponding with near the gear speed change gear a certain rear wheel, need increase intermediate gearing separately, make the drive mechanism of tricycle complicated, increased manufacturing cost again.
Summary of the invention:
The purpose of this utility model provides a kind of three-wheel wheel Wheel-chair speed change gear.It is simple in structure easy to use, laborsaving, and installation and maintenance are convenient, low cost of manufacture.
The purpose of this utility model is achieved in that a kind of three-wheel wheel Wheel-chair speed change gear, and gear shift flywheel is connected with flower-drum on the trailing wheel, between gear shift flywheel and flower-drum adapter sleeve is installed, and axletree is fixed on the rear wheel frame, and variator is fixed on the axletree.
Gear shift flywheel described in the utility model and variator adopt six grades of flywheels of bicycle and variator.
The beneficial effects of the utility model: the 1st, make tricycle can carry out the gear speed change easily.Use convenient, laborsaving.The 2nd, rationally utilized bicycle 6 retaining gear shift flywheels good as speed change gear highly versatile, the interchangeability of tricycle, production cost is low, the maintenance of speed change gear and change very convenient.The 3rd, adapter sleeve is simple in structure, is fixed on the vehicle frame behind the axletree lengthening, has simplified drive mechanism, and flywheel is installed rationally, and transmission is effective.
Description of drawings:
Fig. 1 is the mounting structure sketch map of gear shift flywheel 7 of the present utility model and adapter sleeve 6
Fig. 2 is the syndeton sketch map of adapter sleeve 6 of the present utility model
The specific embodiment
Below in conjunction with the description of drawings and the specific embodiment this utility model is described in further detail:
In the speed change gear of existing two-wheeled cycle, gear shift flywheel 7 is connected with flower-drum 3 on the trailing wheel 9.Referring to Fig. 1, Fig. 2, this utility model speed change gear are by six retaining flywheels 7, and flywheel adapter sleeve 6 and variator 8 are formed.The structure of tricycle trailing wheel 9 is constant, just between gear shift flywheel 7 and flower-drum 3, adapter sleeve 6 is installed, and with axletree 4 lengthenings, axletree 4 is fixed on the rear wheel frame 11, the centre of the position of gear shift flywheel 7 from trailing wheel one sidesway to two trailing wheels, corresponding with the position of preceding sprocket wheel and chain, chain can directly be installed.Variator 8 is fixed on the axletree 4 of gear shift flywheel 7 one sides, has control line to be connected with controller on the handlebar handle through vehicle frame on the variator 8, can carry out shifted operation.Gear shift flywheel 7 can directly adopt six grades of flywheels of bicycle, and variator 8 also can adopt the variator supporting with bicycle.The operation-control switch of variator can directly be installed on the handle of tricycle.
With existing bicycle rear structural similarity, the centre of flower-drum 3 is installed with the axletree 4 of lengthening on this utility model trailing wheel 9, cup 5 is equipped with in the both sides of flower-drum 3, steel ball 2 is housed in the cup 5, be combined with axle bumper 1 on the axletree 4 in steel ball 2 outsides, constitute the bearing support structure of axletree 4 and flower-drum 3.Gear shift flywheel 7 just directly is not installed on the flower-drum 3 of wheel inboard, but screw the adapter sleeve 6 of a hollow, one end of adapter sleeve 6 is manufactured with the female thread that cooperates with flower-drum 3, its other end is then made the structure identical with flower-drum 3, cup 5, steel ball 2 and axle bumper 1 can be installed, gear shift flywheel 7 then can be installed on the external screw thread of adapter sleeve 6, forms the bearing arrangement that is supported by three cover steel balls on axletree 4.Gear shift flywheel 7 moves to the center of tricycle by the position on the original flower-drum 3 like this, is meshed through chain and drive sprocket, cooperates six grades of flywheels of bicycle and speed change gear, constitutes simple and practical chain type variable speed drive system.Can step on (tricycle) drive sprocket by hand (Wheelchair car) or foot, drive trailing wheel 9 and rotate.Near on the axletree 4 of gear shift flywheel 7 variator 8 is being installed, near axletree 4 outsides of trailing wheel 9 brake 10 is being installed, the two ends of axletree 4 directly are fixed on the rear wheel frame 11.
Claims (2)
1. a three-wheel is taken turns the Wheel-chair speed change gear, gear shift flywheel (7) is connected with flower-drum (3) on the trailing wheel (9), it is characterized in that: between gear shift flywheel (7) and flower-drum (3), adapter sleeve (6) is installed, axletree (4) is fixed on the rear wheel frame (11), and variator (8) is fixed on the axletree (4).
2. a kind of three-wheel wheel Wheel-chair speed change gear according to claim 1, it is characterized in that: gear shift flywheel (7) and variator (8) adopt six grades of flywheels of bicycle and variator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620098058 CN2933362Y (en) | 2006-07-27 | 2006-07-27 | Speed change device for three-wheeled wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620098058 CN2933362Y (en) | 2006-07-27 | 2006-07-27 | Speed change device for three-wheeled wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2933362Y true CN2933362Y (en) | 2007-08-15 |
Family
ID=38350053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620098058 Expired - Fee Related CN2933362Y (en) | 2006-07-27 | 2006-07-27 | Speed change device for three-wheeled wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2933362Y (en) |
-
2006
- 2006-07-27 CN CN 200620098058 patent/CN2933362Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |