CN201670334U - Bicycle double-shaft driver - Google Patents
Bicycle double-shaft driver Download PDFInfo
- Publication number
- CN201670334U CN201670334U CN2010201839124U CN201020183912U CN201670334U CN 201670334 U CN201670334 U CN 201670334U CN 2010201839124 U CN2010201839124 U CN 2010201839124U CN 201020183912 U CN201020183912 U CN 201020183912U CN 201670334 U CN201670334 U CN 201670334U
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- shaft
- frame
- double
- bicycle
- rotating shaft
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Abstract
The utility model relates to a bicycle double-shaft driver which comprises a front wheel part, a rear wheel part and a frame arranged at the middle part. The driver is installed at the lower part of the frame. The bicycle double-shaft driver is characterized in that a chain tray is arranged on an auxiliary shaft, and a driven sprocket on the auxiliary shaft is connected with the driving sprocket on a main shaft by using driving chains; a right frame and a left frame are symmetrically arranged to form a triangular structure, and the main shaft and the auxiliary shaft are fixed respectively by a front locking hoop and a rear locking hoop through bearings in the triangular structure; and the two ends of the main shaft are used for installing pedal plates. The utility model has the advantages that the structure is simple, the durability is high, the manufacturing cost is low, the effort is greatly saved when climbing or driving against wind, and on the premise that the speed is improved, the situations that the chains are stuck or fall off because the chains are not firmly coupled with the sprockets are avoided.
Description
Technical field
The utility model relates to the double-shaft drive device of using on a kind of bicycle, belongs to the technical field of bicycle part aspect.
Background technology
At present, a lot of areas all with bicycle as the topmost vehicle, along with expanding economy, the simplest bicycle progressively is eliminated, and the substitute is the bicycle of novel changable speed.The structure of ordinary bicycle is: be provided with a dynamical axis at the middle part, dynamical axis is captiveed joint with trampling, dynamical axis connects the rear axle of trailing wheel by chain, transmit power to rear axle, thereby drive advancing of bicycle, usually for assurance speed, make the diameter of the diameter of transmission shaft, the speed of a motor vehicle can be improved greater than rear axle.Its drawback is, going up a slope or can require great effort very much against the wind the time.Variable speed bicycle is to adopt a plurality of chain dishes, does power transmission with the mode that the chain conversion articulates, but this speed changing structure complexity, the cost height, and in time, have because of chain and sprocket wheel articulate the not firm generation that causes the phenomenon of stuck or chain-taking, thereby cause hidden danger.
Summary of the invention
At the deficiency that above-mentioned technical matters exists, the purpose of this utility model provides the double-shaft drive device of using on a kind of bicycle.
The technical solution of the utility model is as follows:
A kind of bicycle double-shaft drive device, comprise front-wheel partial sum trailing wheel part, and the vehicle frame at its middle part, the structure of a driver is installed in the vehicle frame bottom, it is characterized in that: the chain dish is arranged on the countershaft, and the driven sprocket on the countershaft is connected with messenger chain with drive sprocket on the main shaft; Right frame and left frame are symmetrical arranged the composition triangular structure, and main shaft and countershaft are fixed with preceding locking strap and back locking strap respectively by its triangular structure in-to-in bearing; The two ends of main shaft are used for the structure of installation foot pedal.
Driven sprocket and the drive sprocket on the main shaft on the described countershaft are double structure, and described messenger chain also is a double structure.
The non-positive three-legged structure of described triangular structure, its bight is an arc.
Described triangular structure is symmetrical arranged by right frame and left frame, and right frame and left frame are fixed together with front shaft sleeve, rotating shaft cover, rear axle housing, and front shaft sleeve, rotating shaft cover, rear axle housing are separately positioned on the circular arc bight of right frame and left frame inboard.
Described rotating shaft cover and its in-to-in rotating shaft frictional connection, the rotating shaft cover connects to ground fixing.
Described driven sprocket diameter is less than drive sprocket, its consistency of thickness.
Described rear axle housing is captiveed joint with the back seat shelf structure on the trailing wheel part, and the mounting structure is captiveed joint with the rear portion of vehicle frame by expansion link or spring thereafter.
The beneficial effects of the utility model are: simple in structure, durable in use, cost is low, in climbing or meet and to feel very laborsaving when cycling against the wind, under the situation that has improved speed, has avoided chain and sprocket wheel to articulate not firm and causes generation stuck or the chain-taking phenomenon.
Description of drawings
Fig. 1 is a bicycle running condition structural representation of the present utility model;
Fig. 2 is a perspective view of the present utility model;
Fig. 3 is the another side structural representation of Fig. 2.
Among the figure: locking strap, 17 left frames, 18 driven sprockets before 1 vehicle frame, 2 common chains, 3 trailing wheels part, 4 right frames, 5 main shafts, 6 countershafts, 7 stretchers, 8 chain dishes, 9 drive sprockets, 10 messenger chains, 11 rotating shafts, 12 rotating shaft covers, 13 front shaft sleeves, 14 rear axle housings, the 15 back locking straps, 16.
The specific embodiment
Embodiment 1: as Fig. 1, Fig. 2, shown in Figure 3, the utility model comprises the front-wheel partial sum trailing wheel part 3 of vehicle frame 1 and vehicle frame 1 front portion, at vehicle frame 1 rear lower the utility model is installed.Characteristics of the present utility model are that common chain 2 is mounted on the chain dish 8, on countershaft 6 midway location of the chain dish 8 of suit and right frame 4 also fixed cover driven sprocket 18 is housed.Right frame 4 is symmetrical arranged with left frame 17, structure triangular in shape, and its bight is an arc chord angle.Right frame 4 is fixed together with left frame 17 usefulness front shaft sleeves 13, rotating shaft cover 12, rear axle housing 14, and front shaft sleeve 13, rotating shaft cover 12, rear axle housing 14 are separately positioned on the circular arc bight of right frame 4 and left frame 17 inboards.Described rotating shaft cover 12 and its in-to-in rotating shaft 11 frictional connectiones, rotating shaft cover 12 is connected and fixed with vehicle frame 1.Inside at described front shaft sleeve 13 is provided with bearing, and main shaft 5 passes its bearing, is locked with the preceding locking strap 16 of front shaft sleeve 13 both sides.Be fixedly connected with drive sprocket 9 near on the main shaft 5 of right frame 4, the two ends of main shaft 5 are used for the structure of installation foot pedal 7.Be provided with bearing in described rear axle housing 14 inside, countershaft 6 passes its bearing, is locked with the back locking strap 15 of rear axle housing 14 both sides.Be fixedly connected with driven sprocket 18 near on the countershaft 6 of right frame 4.The outside fixed installation chain dish 8 of its driven sprocket 18, chain dish 8 mounts with common chain 2 and is connected.Described driven sprocket 18 diameters are less than drive sprocket 9, and its thickness equates with drive sprocket 9, so that drive sprocket 9 or driven sprocket 18 mount messenger chain 10.Described drive sprocket 9 or driven sprocket 18 and messenger chain 10 can be made into double structure, so that strengthen its power.Described rear axle housing 14 is captiveed joint with the back seat shelf structure on the trailing wheel part 3, and the mounting structure is captiveed joint with the rear portion of vehicle frame 1 by expansion link or spring thereafter, jolts thereby trailing wheel part 3 has been reduced when bicycle walking.
Embodiment 2: as Fig. 1, Fig. 2, shown in Figure 3, the utility model comprises the front-wheel partial sum trailing wheel part 3 of vehicle frame 1 and vehicle frame 1 front portion, at vehicle frame 1 rear lower the utility model is installed.Characteristics of the present utility model are that common chain 2 is mounted on the chain dish 8, and at the chain dish 8 of countershaft 6 near suit on the right frame 4, fixed cover is equipped with driven sprocket 18 on its countershaft 6 left frames 17.Right frame 4 is symmetrical arranged with left frame 17, structure triangular in shape, and its bight is an arc chord angle.Right frame 4 is fixed together with left frame 17 usefulness front shaft sleeves 13, rotating shaft cover 12, rear axle housing 14, and front shaft sleeve 13, rotating shaft cover 12, rear axle housing 14 are separately positioned on the circular arc bight of right frame 4 and left frame 17 inboards.Described rotating shaft cover 12 and its in-to-in rotating shaft 11 frictional connectiones, rotating shaft cover 12 is connected and fixed with vehicle frame 1.Inside at described front shaft sleeve 13 is provided with bearing, and main shaft 5 passes its bearing, is locked with the preceding locking strap 16 of front shaft sleeve 13 both sides.Be fixedly connected with drive sprocket 9 near on the main shaft 5 of left frame 17, the two ends of main shaft 5 are used for the structure of installation foot pedal 7.Be provided with bearing in described rear axle housing 14 inside, countershaft 6 passes its bearing, is locked with the back locking strap 15 of rear axle housing 14 both sides.Be fixedly connected with driven sprocket 18 near on the countershaft 6 of left frame 17.Described driven sprocket 18 diameters are less than drive sprocket 9, and its thickness equates with drive sprocket 9, so that drive sprocket 9 or driven sprocket 18 mount messenger chain 10.Described drive sprocket 9 or driven sprocket 18 and messenger chain 10 can be made into double structure, so that strengthen its power.Described rear axle housing 14 is captiveed joint with the back seat shelf structure on the trailing wheel part 3, and the mounting structure is captiveed joint with the rear portion of vehicle frame 1 by expansion link or spring thereafter, jolts thereby trailing wheel part 3 has been reduced when bicycle walking.
Claims (7)
1. bicycle double-shaft drive device, the vehicle frame (1) that comprises front-wheel partial sum trailing wheel part (3) and its middle part, the structure of a driver is installed in vehicle frame (1) bottom, it is characterized in that: chain dish (8) is arranged on the countershaft (6), and the driven sprocket (18) on the countershaft (6) is connected with messenger chain (10) with drive sprocket (9) on the main shaft (5); Right frame (4) is symmetrical arranged the composition triangular structure with left frame (17), and main shaft (5) uses preceding locking strap (16) and back locking strap (15) fixing with countershaft (6) respectively by its triangular structure in-to-in bearing; The two ends of main shaft (5) are used for the structure of installation foot pedal (7).
2. a kind of bicycle double-shaft drive device according to claim 1 is characterized in that: the drive sprocket (9) on driven sprocket (18) on the described countershaft (6) and the main shaft (5) is a double structure, and described messenger chain (10) also is a double structure.
3. a kind of bicycle double-shaft drive device according to claim 1 is characterized in that: the non-positive three-legged structure of described triangular structure, its bight is an arc.
4. according to claim 1 or 3 described a kind of bicycle double-shaft drive devices, it is characterized in that: described triangular structure is symmetrical arranged by right frame (4) and left frame (17), right frame (4) is fixed together with front shaft sleeve (13), rotating shaft cover (12), rear axle housing (14) with left frame (17), and front shaft sleeve (13), rotating shaft cover (12), rear axle housing (14) are separately positioned on right frame (4) and the inboard circular arc bight of left frame (17).
5. according to claim 1 or 3 described a kind of bicycle double-shaft drive devices, it is characterized in that: described rotating shaft cover (12) and its in-to-in rotating shaft (11) frictional connection, rotating shaft cover (12) is connected and fixed with vehicle frame (1).
6. a kind of bicycle double-shaft drive device according to claim 1 is characterized in that: described driven sprocket (18) diameter is less than drive sprocket (9), its consistency of thickness.
7. according to claim 1 or 4 described a kind of bicycle double-shaft drive devices, it is characterized in that: described rear axle housing (14) is captiveed joint with the back seat shelf structure on the trailing wheel part (3), and the mounting structure is captiveed joint with the rear portion of vehicle frame (1) by expansion link or spring thereafter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201839124U CN201670334U (en) | 2010-05-10 | 2010-05-10 | Bicycle double-shaft driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201839124U CN201670334U (en) | 2010-05-10 | 2010-05-10 | Bicycle double-shaft driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201670334U true CN201670334U (en) | 2010-12-15 |
Family
ID=43327746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201839124U Expired - Fee Related CN201670334U (en) | 2010-05-10 | 2010-05-10 | Bicycle double-shaft driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201670334U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103847915A (en) * | 2014-03-27 | 2014-06-11 | 唐立新 | Bicycle transmission device |
-
2010
- 2010-05-10 CN CN2010201839124U patent/CN201670334U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103847915A (en) * | 2014-03-27 | 2014-06-11 | 唐立新 | Bicycle transmission device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101215 Termination date: 20120510 |