CN2466033Y - Rear-axle drive device for chainless bicycle - Google Patents
Rear-axle drive device for chainless bicycle Download PDFInfo
- Publication number
- CN2466033Y CN2466033Y CN 01211802 CN01211802U CN2466033Y CN 2466033 Y CN2466033 Y CN 2466033Y CN 01211802 CN01211802 CN 01211802 CN 01211802 U CN01211802 U CN 01211802U CN 2466033 Y CN2466033 Y CN 2466033Y
- Authority
- CN
- China
- Prior art keywords
- rear axle
- transmission device
- bevel gear
- sand
- chain
- 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 back shaft drive device for a chainless bicycle, which is composed of a bevel gear group 3 arranged in a gear box 1 of the right end of a back shaft, a ratchet wheel 6, a holder 7, a left end grit gear 2, double-surface grit gear 8, two groups of grit particles 18, 19 and a back fork connecting pipe (a drive shaft)) 14. A driven bevel gear is connected with an outer shaft sleeve through the ratchet wheel 6 and the holder 7. A rotation speed generated from a central shaft drive mechanism is completely transferred to a back wheel of the bicycle through a drive shaft. The utility model has the advantages of reasonable structure and safe and reliable operation and can be matched with a central shaft drive mechanism of a labor-saving bicycle, a central shaft drive mechanism of a labor-saving damping bicycle and other proper central shaft drive mechanisms.
Description
The utility model belongs to the bicycle field, particularly the chain-less bicycle backshaft transmission device.
The most of employing of present commercially available bicycle gear, chain gear.Variable speed bicycle then is a gear of setting up one group of different-diameter on rear axle, and the revolution ratio by change and middle shaft gear reaches labour-saving purpose when riding, but do not economize merit on sloping road.
Patent application " shaft transmission in the chain-less bicycle " provides a kind of inherent characteristic that adopts planetary wheel to circle certainly to improve the scheme of revolution ratio, improves the revolution ratio that is sent to rear axle.The utility model provides a kind of backshaft transmission device that can make full use of this effect.
The object of the invention provides a kind of by the bevel gear group, organizes the bicycle rear axle driving device that sand grains or bearing and ratchet one catcher are formed more, with the high revolution ratio that shaft transmission in making full use of is sent, and the purpose of reach laborsaving by bike, economizing merit.
According to chain-less bicycle backshaft transmission device of the present utility model, comprise rear axle, the outer sand retaining in a left side, left and right sand grains, left and right sand block seat, and have following feature:
A, establish a rear axle gear case, the bevel gear group that is located at the rear axle right part is encapsulated in this gear case on the right side of right sand block seat.
The transmission bevel gear of b, bevel gear group is rotatably connected by bearing and gear case, and driven bevel pinion then is connected with outer shaft with catcher by ratchet.
The driven bevel pinion of c, bevel gear group is done to roll to be connected with rear axle.
D, backshaft transmission device are connected by the transmission device of left and right fork connecting pipe (transmission shaft) and axis, right fork connection pipe picks out from gear case, be provided with transmission shaft in the pipe, insert in the transmission bevel gear of bevel gear group the end of this transmission shaft, and left back fork connection pipe is directly connected to the rear axle left end with nut.
E, on left and right sand block seat, respectively establish a flange circle, be used to weave spoke voluntarily.
According to chain-less bicycle backshaft transmission device of the present utility model, described ratchet is matched by ratchet, very heavy and driven bevel pinion.
According to chain-less bicycle backshaft transmission device of the present utility model, described catcher shape is convex, and ratchet and flange are pushed down in its inboard.
According to chain-less bicycle backshaft transmission device of the present utility model, the horizontal bevel gear of described bevel gear group can be done to roll with rear axle with two-sided sand retaining and be connected with the left sand retaining on two groups of sand grains and the rear axle, forms the rolling structure of three groups of sand grains.Two-sided sand retaining and axostylus axostyle are made into one, also can make the back separately with being threaded.Also can adopt bearing or other similar version to realize that this rolling connects.
According to chain-less bicycle backshaft transmission device of the present utility model, fork connecting pipe (transmission shaft) can adopt following version: left side fork connection pipe is directly connected to the rear axle left end, the gear case of shaft transmission during the other end of this connection pipe connects, right back fork connection pipe picks out from the rear axle gear case, shaft transmission gear case during the other end connects, establish transmission shaft in this connection pipe, insert respectively in the transmission gear of axis miniature gears and back shaft bevel gear group at the two ends of this transmission shaft.Also can adopt other similar connection pipe structure.
Adopt chain-less bicycle backshaft transmission device of the present utility model, the rotating speed that middle shaft transmission transmits is passed to bevel gear, rotate the drive wheel thereby bevel gear drives ratchet, catcher, outer sand retaining and outer shaft by transmission shaft.This driving device can make full use of the rotating speed that is passed over by middle shaft transmission, the purpose of reach laborsaving, economizing merit.
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is a part sectional view of the present utility model.
Fig. 2 is the lateral plan of catcher.
Fig. 3 is the lateral plan of ratchet.
Fig. 4 is the part sectional view of ratchet.
As shown in Figure 1, chain-less bicycle backshaft transmission device of the present utility model comprises rear axle 15, the outer sand retaining 12 in a left side, and left and right sand grains 13,13 ', left and right sand block seat 9,10, and have following technical characterictic:
A, establish a rear axle gear case 1, the bevel gear group 3 that is located at the rear axle right part is encapsulated in this gear case 1 on the right side of right sand block seat 9.
The transmission bevel gear of b, bevel gear group 3 is rotatably connected by bearing 17 and gear case 1, and driven bevel pinion then is connected with outer shaft with catcher 7 by ratchet 6.
The driven bevel pinion of c, bevel gear group 3 is done to roll to be connected with rear axle.
D, the left and right fork connecting pipe (transmission shaft) by being located at axle head 14,14 ' are connected with the transmission device (not shown) of axis, right back fork connection pipe 14 picks out from gear case 1, be provided with transmission shaft 20 in the pipe, insert in the transmission bevel gear of bevel gear group 3 end of this transmission shaft, and left back fork connection pipe 14 ' is directly connected to the rear axle left end with nut 21.
E, on left and right sand block seat 9,10, manage bluely 11, be used to weave the spoke (not shown).
As shown in Figure 1, ratchet 6 matches by ratchet, very heavy and driven bevel pinion.Shown in Fig. 1,3,4, be provided with ratchet 4 and spring coil 5 in the ratchet.
As shown in Figure 2, the shape of catcher 7 is convex.As shown in Figure 1, ratchet 6 and flange 11 are pushed down in the inboard of catcher 7.
As shown in Figure 1, the driven bevel pinion of bevel gear group 3 is to realize making the rolling bonded assembly with rear axle by right sand retaining 2 on two groups of sand grains 18,19 and the rear axle and two-sided sand retaining 8.Two-sided sand retaining 8 can be made into one with rear axle, also can process the back respectively with being threaded.
According to the backshaft transmission device of present embodiment, the rotating speed that is transmitted by transmission shaft 20 drives ratchet 6, catcher 7, sand block seat 10, outer shaft 15 rotations through bevel gear group 3, thereby drives wheel.
Chain-less bicycle backshaft transmission device delicate structure of the present utility model, safe and reliable to operation, can make full use of the rotating speed that sends by middle shaft transmission.Can and patent application " shaft transmission in the labour-saving bicycle ", " laborsaving vibration damping bicycle middle shaft transmission device " and other similarly in shaft transmission be used.
Claims (7)
1, a kind of chain-less bicycle backshaft transmission device comprises rear axle (15), the outer sand retaining in a left side (12), and left and right sand grains (13), (13 '), right, left sand block seat (9), (10) is characterized in that:
A, establish a rear axle gear case (1), the bevel gear group (3) that is located at the rear axle right part be encapsulated in this gear case (1) on the right side of right sand block seat (9),
The transmission bevel gear of b, bevel gear group (3) is rotatably connected by bearing (17) and gear case (1), and driven bevel pinion then is connected with outer shaft with catcher (7) by ratchet (6),
The driven bevel pinion of c, bevel gear group (3) is done to roll to be connected with rear axle,
D, backshaft transmission device are connected by the transmission device of left and right fork connecting pipe (14), (14 ') and axis, right back fork connection pipe (14) picks out from gear case (1), be provided with transmission shaft (20) in the pipe, insert in the transmission bevel gear of bevel gear group (3) end of this transmission shaft, left back fork connection pipe (14 ') is directly connected to the rear axle left end with nut (21)
E, on left and right sand block seat (9), (10), respectively establish a flange circle (11), be used to weave spoke voluntarily.
2,, it is characterized in that described ratchet (6) matches by ratchet, very heavy and driven bevel pinion according to the chain-less bicycle backshaft transmission device of claim 1.
3, according to the chain-less bicycle backshaft transmission device of claim 1, it is characterized in that described catcher (7) is convex, ratchet (6) and flange (11) are pushed down in the inboard.
4, according to the chain-less bicycle backshaft transmission device of claim 1, the driven bevel pinion that it is characterized in that described bevel gear group (3) is to keep off (8) by retaining of the right-hand member sand on two groups of sand grains (18), (19) and the rear axle (2) and two-sided sand to be connected with the rolling of rear axle do.
5,, it is characterized in that described two-sided sand retaining (8) and rear axle (15) are made into an integral body according to the chain-less bicycle backshaft transmission device of claim 4.
6,, it is characterized in that described two-sided sand retaining is screwed on the rear axle (15) with screw thread according to the chain-less bicycle backshaft transmission device of claim 4.
7, must ask 1 chain-less bicycle backshaft transmission device according to weighing, the driven bevel pinion that it is characterized in that described bevel gear group (3) is to make the rolling bonded assembly by bearing and rear axle (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01211802 CN2466033Y (en) | 2001-02-27 | 2001-02-27 | Rear-axle drive device for chainless bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01211802 CN2466033Y (en) | 2001-02-27 | 2001-02-27 | Rear-axle drive device for chainless bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2466033Y true CN2466033Y (en) | 2001-12-19 |
Family
ID=33631122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01211802 Expired - Fee Related CN2466033Y (en) | 2001-02-27 | 2001-02-27 | Rear-axle drive device for chainless bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2466033Y (en) |
-
2001
- 2001-02-27 CN CN 01211802 patent/CN2466033Y/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 |