CN2467390Y - Rear axle driving device for power-saving bicycle - Google Patents
Rear axle driving device for power-saving bicycle Download PDFInfo
- Publication number
- CN2467390Y CN2467390Y CN 01211990 CN01211990U CN2467390Y CN 2467390 Y CN2467390 Y CN 2467390Y CN 01211990 CN01211990 CN 01211990 CN 01211990 U CN01211990 U CN 01211990U CN 2467390 Y CN2467390 Y CN 2467390Y
- Authority
- CN
- China
- Prior art keywords
- bevel gear
- rear axle
- back shaft
- ratchet
- shaft
- 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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- Gear Transmission (AREA)
Abstract
The utility model provides a back shaft driving device for a power-saving bicycle, which comprises a grit bowl on the right part of a bicycle back shaft, grit particles, etc. A group of mutually engaged bevel gears is arranged in a back box body for covering the left part of the back shaft. One of the bevel gears is arranged on the end of a driving shaft of a central shaft driving device, and the other bevel gear is arranged on the back shaft. The front part and the back part of the bevel gear of the back shaft are respectively provided with a bearing matched with the back box body and a stop ring in a rotating mode. A ratchet wheel and ratchet pawl system is arranged in a hub in order to control wheels to rotate. The back shaft driving device has the advantages of high transmitted power, labor saving and convenient maintenance.
Description
The utility model belongs to the bicycle field, particularly a kind of labour-saving bicycle backshaft transmission device.
Present commercially available bicycle belongs to gear-chain gear more, and the shortcoming of this driving device is that friction force is bigger, and gear, chain wear are serious, and maintenance load is big, the effort of riding.
The purpose of this utility model provides a kind of labour-saving bicycle backshaft transmission device of being made up of bevel gear and transmission shaft and corresponding bearing, and patent application " shaft drive in the labour-saving bicycle " combines, and forms complete labour-saving bicycle driving system.
According to labour-saving bicycle backshaft transmission device of the present utility model, comprise sand bowl, sand grains, nut, the packing ring of rear axle, right-hand member, it is characterized in that:
(1) in the left box body of rear axle, be provided with a bevel gear, be meshed with rear end bevel gear from middle shaft drive transmission shaft,
(2) right-hand member and the left part of back shaft bevel gear are respectively established a bearing, do rotatable the cooperation with rear box and back-up ring respectively,
(3) pawl base and ratchet are established in the right side of back shaft bevel gear, and spring and ratchet are housed on it,
(4) middle part of rear axle is provided with a skin, and its left end and rear box are adjacent, pawl wheel and the axle skin between with being threaded.
Establish nut on the left side of left side bearing of back shaft bevel gear and fix position of bearings.
Establish a bearing on the rear axle on described ratchet right side and do rotatable the cooperation with ratchet.
Adopt backshaft transmission device of the present utility model, the torque that passes over by transmission shaft is sent on the rear axle by a pair of bevel gear, rear axle rotates and drives the rear wheel rotation, ratchet-detent system then plays rear axle drives wheel when forward rotating, during the rear axle backwards rotation, the ratchet withdrawal does not drive rear axle and rotates, and reaches the effect that is equivalent to power-transfer clutch.
Adopt that shaft drive matches in this backshaft transmission device and the labour-saving bicycle, by bevel gear-transmission shaft-bevel gear group, the bearing transmission comes efficient transmitting torque, reaches 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 the backshaft transmission device constructional drawing.
Fig. 2 is the part sectional view of backshaft transmission device.
As shown in Figure 1, labour-saving bicycle backshaft transmission device of the present utility model comprises it is characterized in that sand bowl 8, sand grains 9, nut 14, the packing ring 13 of rear axle 1, rear axle right-hand member:
(1) left part of rear axle 1 is provided with a bevel gear 3 and is meshed with bevel gear from transmission shaft 18 rear ends of middle shaft drive,
(2) right-hand member and the left part of back shaft bevel gear 3 are respectively established a bearing 15,17, do rotatable the cooperation with rear box 20 and back-up ring 21 respectively,
(3) pawl base 16 and ratchet 19 are established in the right side of back shaft bevel gear 3, and spring 4 and ratchet 5 are housed on it,
(4) middle part of rear axle is provided with a skin 7, and its left end is adjacent with rear box 20, pawl wheel 19 and the axle skin 7 between with being threaded.
As shown in Figure 1 and Figure 2, the position that a nut 2 fixes bearing 17 is established on the left side of the left side bearing 17 of the left end bearing 17 of back shaft bevel gear 3.
As shown in Figure 2, on the rear axle on ratchet 16 right sides, establish a bearing 6 and do rotatable the cooperation with ratchet 19.
Adopt this backshaft transmission device, will be delivered to back shaft bevel gear 3 by transmission shaft 18 from the rotating torque of axis and drive rear axle 1 rotation, rotate thereby drive trailing wheel.The effect of click system is forward to drive wheel, rear axle idle running when reverse.
Adopt backshaft transmission device of the present utility model, can make the bicycle of riding economize merit, laborsaving, maintenance workload is little.
Claims (3)
1, a kind of labour-saving bicycle backshaft transmission device comprises it is characterized in that sand bowl (8), sand grains (9), nut (14), the packing ring (13) of rear axle (1), rear axle left end:
1. be provided with a bevel gear (3) in the left back casing (20) of rear axle (1) and be meshed with bevel gear from transmission shaft (18) rear end of middle shaft drive,
2. the right-hand member and the left part of back shaft bevel gear (3) are respectively established a bearing (15), (17), do rotatable the cooperation with rear box (20) and back-up ring (21) respectively,
3. a pawl base (16) and ratchet (19) are established in the right side of back shaft bevel gear (3), and spring (4) and ratchet (5) are housed on it,
4. the middle part of rear axle is provided with a skin (7), and its left end and rear box (20) are adjacent, between pawl wheel (19) and axle skin (7) with being threaded.
2, labour-saving bicycle backshaft transmission device according to claim 1 is characterized in that establishing the position that nut (2) fixes bearing (17) on the left side of left side bearing (17) of back shaft bevel gear (3).
3, labour-saving bicycle backshaft transmission device according to claim 1 is characterized in that establishing on the rear axle on described ratchet (16) right side a bearing (6) and does rotatable the cooperation with ratchet (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01211990 CN2467390Y (en) | 2001-03-08 | 2001-03-08 | Rear axle driving device for power-saving bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01211990 CN2467390Y (en) | 2001-03-08 | 2001-03-08 | Rear axle driving device for power-saving bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2467390Y true CN2467390Y (en) | 2001-12-26 |
Family
ID=33631279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01211990 Expired - Fee Related CN2467390Y (en) | 2001-03-08 | 2001-03-08 | Rear axle driving device for power-saving bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2467390Y (en) |
-
2001
- 2001-03-08 CN CN 01211990 patent/CN2467390Y/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 |