CN2470150Y - Middle-shaft drive device of effort-saving bicycle - Google Patents
Middle-shaft drive device of effort-saving bicycle Download PDFInfo
- Publication number
- CN2470150Y CN2470150Y CN 01211991 CN01211991U CN2470150Y CN 2470150 Y CN2470150 Y CN 2470150Y CN 01211991 CN01211991 CN 01211991 CN 01211991 U CN01211991 U CN 01211991U CN 2470150 Y CN2470150 Y CN 2470150Y
- Authority
- CN
- China
- Prior art keywords
- shaft
- bicycle
- bevel gear
- axis
- saving
- 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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Abstract
The utility model provides a shaft drive device for a labor-saving bicycle, comprising a centre shaft of a bicycle, a left bearing and a right bearing. The main body of the centre shaft and a conical gear arranged thereon are enclosed in a case. The conical gear meshes with a conical gear at the end of a transmission shaft which is connected to the back shaft. The conical gears can be fixed on the shafts through bonds or screws. The ends of the transmission shaft are provided with bearings which can be movably engaged with the case. The transmission shaft is inserted into the left connecting sleeve and a connecting rod connected with the back shaft is inserted into the right connecting sleeve. With the advantage that the conical gears are high efficient in force transmission, the bicycle centre shaft drive device of the utility model realizes the purpose of saving labor and saving power.
Description
The utility model belongs to shaft drive in the bicycle field, particularly labour-saving bicycle.
The bicycle major part of being sold in the market is to adopt the wheel chain type of drive.This cycling gets up and relatively requires great effort, and is more hard when particularly riding on uphill road.Derailleur recently reaches the labour-saving purpose by the number of teeth of gear, but does not economize merit.Use the maintenance workload of gear, chain transmission system very big again.
Adopt conventional gear multiplication gear-chain gear more to require great effort difficultly.
It is a kind of driven off by shaft not only laborsaving but also economize the bicycle middle shaft driving device of merit by bevel gear and transmission that the purpose of this utility model is to provide.
According to shaft drive in the labour-saving bicycle of the present utility model, comprise the axis and the left and right bearing of bicycle, set up following technical characterictic of the present utility model: axis and the bevel gear that is contained on this axis are encapsulated with casing.This bevel gear is meshed with the bevel gear that leads to the transmission shaft termination of backshaft transmission device.
Bevel gear is fixed on the axis by pin key, also can bevel gear be fixed on the axis with screw.
Axle head at transmission shaft is provided with bearing and the rotatable cooperation of casing do.Transmission shaft is located at in the adapter sleeve of bolt to the casing, and bevel gear and middle shaft bevel gear by its end are meshed.
Adopt this in during shaft drive, drive axis by pedal and rotate, rotate thereby drive bevel gear, bevel gear is delivered to rotating torque and drives rear axle on the transmission shaft again and rotate.Owing to adopted bevel gear-transmission shaft transmission device, improved the transmission efficiency of merit; Owing to adopted bearing, reduced friction force, thereby reached the purpose that the bicycle labor saving of riding is economized merit.
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is a structural representation of the present utility model.
As shown in the figure, shaft drive in the labour-saving bicycle of the present utility model, comprise bicycle middle shaft 1 and the bearing 2 that is contained in these axis two ends, it is characterized in that with casing 3 main body of axis 1 and the bevel gear 5 that is contained on this axis being encapsulated, the bevel gear of 5 transmission shaft that is connected with backshaft transmission device 6 terminations of bevel gear is meshed.
As shown in the figure, bevel gear 5 is secured on the axis 1 by key 4.Be provided with bearing 9 and casing 3 in the termination of transmission shaft 6 and do rotatable the cooperation, transmission shaft 6 is inserted in in the adapter sleeve 7 of bolt to the casing 3, is connected with the back shaft transmission.
Among the figure 8 is right adapter sleeve, in right pipe link is housed, be connected with rear axle.
Adopt the bicycle use pedal of middle shaft drive of the present utility model to drive the axis transmission, bevel gear 5 rotates thereupon, because transmission shaft and the engagement of this bevel gear, so just driving torque can be sent to rear axle, drive rear wheel and rotate.
Because bevel gear, bearing arrangement transmission efficiency height, bearing friction power is little, so this driving device can be realized lowering and work-saving, because gear train assembly is encapsulated in the casing, so good seal performance, maintenance workload is little.The actual result that uses proves that this cycling is brisk.
Claims (4)
1. shaft drive in the labour-saving bicycle, comprise axis (1) and be contained in the bearing (2) at these axis two ends, it is characterized in that with casing (3) main body of axis (1) and the bevel gear (5) that is contained on this axis (1) being encapsulated, bevel gear (5) then is meshed with the bevel gear of the transmission shaft that is connected with backshaft transmission device (6) termination.
2. according to shaft drive in the labour-saving bicycle of claim 1, it is characterized in that described bevel gear (5) is secured on the axis (1) by key (4).
3. according to shaft drive in the labour-saving bicycle of claim 1, it is characterized in that being provided with bearing (9) and the rotatable cooperation of casing (3) do at the axle head of transmission shaft (6).
4. according to shaft drive in the labour-saving bicycle of claim 1, it is characterized in that described transmission shaft (6) is inserted in in the left adapter sleeve (7) of bolt to the casing (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01211991 CN2470150Y (en) | 2001-03-08 | 2001-03-08 | Middle-shaft drive device of effort-saving bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01211991 CN2470150Y (en) | 2001-03-08 | 2001-03-08 | Middle-shaft drive device of effort-saving bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2470150Y true CN2470150Y (en) | 2002-01-09 |
Family
ID=33631280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01211991 Expired - Fee Related CN2470150Y (en) | 2001-03-08 | 2001-03-08 | Middle-shaft drive device of effort-saving bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2470150Y (en) |
-
2001
- 2001-03-08 CN CN 01211991 patent/CN2470150Y/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 |