CN203793034U - External three-speed hub with small width - Google Patents
External three-speed hub with small width Download PDFInfo
- Publication number
- CN203793034U CN203793034U CN201420040951.7U CN201420040951U CN203793034U CN 203793034 U CN203793034 U CN 203793034U CN 201420040951 U CN201420040951 U CN 201420040951U CN 203793034 U CN203793034 U CN 203793034U
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- CN
- China
- Prior art keywords
- gear
- speed
- hub
- opening
- external
- 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 - Lifetime
Links
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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- Gear Transmission (AREA)
Abstract
The utility model provides an external three-speed hub with a small width. The external three-speed hub comprises a hub body, a ratchet wheel base, a gear set, a shaft, a bearing and a clamping plug, wherein the shaft penetrates through the hub body and the bearing and the clamping plug are laterally symmetrically arranged on the shaft in a sleeved mode. The external three-speed hub with the small width is characterized in that the gear set is arranged on the ratchet wheel base and comprises a first gear, a second gear and a third gear, and the sizes of the gears are reduced in sequence. On the premise that the speed changing function is satisfied, redundant gears are removed to the maximum extent, the requirement for riding is satisfied, the size of the gear set can be reduced, the width of the hub is further reduced, and the requirements for the folding size and speed of a foldable bicycle are both considered.
Description
Technical field
The utility model relates to a kind of colored hub structure, is specifically related to a kind of little grade outer three speed hubs of opening.
Background technology
14 cun of existing markets folding bicycle adopts single speed or 130mm to open 9 speed hubs of shelves substantially.Obviously, although single speed hub can be accomplished good folded size, it can not regulate in response to road conditions in the time riding, comparatively effort; And although 130mm opens 9 speed hubs of shelves and can solve the problem of speed change, oversize so that had a strong impact on folding design and effect because it opens shelves.Simultaneously, the use crowd of folded bicycle generally can consider the portability (requiring after folding to have less size) of bicycle and basic speed changing function (meet climbing, level road and compete for speed three kinds of rate requests), therefore, 9 speed hubs are not only oversize, and multi-speed exchanged gear also seems that some is unnecessary.
Utility model content
Consider the problem being mentioned in background technology, the utility model proposes a kind of little grade outer three speed hubs of opening, take into account the requirement of folded size and the speed of folding bicycle, its technical scheme is as follows:
A kind of little grade outer three speed hubs of opening, comprise colored hub main body, pawl seat, gear cluster, provide the axle of colored hub main body, and be sheathed on the symmetrically arranged bearing in left and right and jam on axle, it is characterized in that: described gear cluster is installed on pawl seat, it comprises the first gear, the second gear and the 3rd gear, and each gear size is successively decreased successively.
Such scheme, under the prerequisite that meets speed changing function, has been removed the gear of the redundancy of gear cluster to greatest extent, has both met the demand of riding, and can reduce again the size of gear cluster, thereby further reduce and open a grade size.
Preferably, between described left and right jam, open span from being 80 to 90 millimeters.Than grade size of opening of existing colored hub 130mm to 150mm, remove the structure of functional redundancy on colored hub, obviously the utlity model has better folding effect.
Preferably, between described left and right jam, open span from being 84 millimeters.
Preferably, described the first gear is provided with 13 teeth, and the second gear is provided with 11 teeth, and the 3rd gear is provided with 9 teeth, reasonably selects the gear of the different numbers of teeth can meet the demand of different riding speeds.The minimum gear of the utility model adopts 9 gears, promotes and reaches 22% than 11 gear speed, makes folded bicycle reach higher riding speed.
Preferably, described the first gear and the second gear is forced is installed on pawl seat.
Preferably, described the 3rd gear side is extended and is had externally threaded threaded portion, coordinates the internal lock screw thread of pawl seat to fix.
The beneficial effects of the utility model are:
1, make folded bicycle possess speed changing function, meet the demand of all kinds of situations of riding;
2, possess the less grade size of opening, make folded bicycle realize better folding effect;
3, use according to the actual requirements the gear of the different numbers of teeth, to realize the design of different riding speeds;
4, under equal conditions, 9 gears are effectively promoted riding speed.
Brief description of the drawings
Fig. 1 is flower hub integral structure schematic diagram.
Fig. 2 is flower hub blast structural representation.
Detailed description of the invention
As follows by reference to the accompanying drawings, the application's scheme is further described:
A kind of little grade outer three speed hubs of opening, comprise colored hub main body 1, pawl seat 2, gear cluster 3, provide the axle 7 of colored hub main body, and be sheathed on axle 7 the symmetrically arranged bearing 5 in left and right and jam 4, described gear cluster 3 is installed on pawl seat 2, it comprises the first gear 31, the second gear 32 and the 3rd gear 33, described the first gear 31 and the second gear 32 is forced is installed on pawl seat 2, and compress by tightly locking packing ring 6.Described the 3rd gear 33 sides are extended and are had externally threaded threaded portion, coordinate the internal lock screw thread of pawl seat 2 to fix.
Described the first gear 31 is provided with 13 teeth, and the second gear 32 is provided with 11 teeth, and the 3rd gear 33 is provided with 9 teeth.
Grade distance B of opening between described left jam 41 and right jam 42 is 84 millimeters.
Above-mentioned preferred implementation should be considered as the casehistory of the application's scheme implementation mode, and identical, the approximate or technology deduction made based on this of all and the application's scheme, replacement, improvement etc. all should be considered as the protection domain of this patent.
Claims (6)
1. open grade outer three speed hubs for one kind little, comprise colored hub main body, pawl seat, gear cluster, provide the axle of colored hub main body, and in being sheathed on the symmetrically arranged bearing in left and right and jam on axle, it is characterized in that: described gear cluster is installed on pawl seat, it comprises the first gear, the second gear and the 3rd gear, and each gear size is successively decreased successively.
2. little grade outer three speed hubs of opening of one according to claim 1, is characterized in that: between described left and right jam, open span from being 80 to 90 millimeters.
3. little grade outer three speed hubs of opening of one according to claim 2, is characterized in that: between described left and right jam, open span from being 84 millimeters.
4. little grade outer three speed hubs of opening of one according to claim 1, is characterized in that: described the first gear is provided with 13 teeth, and the second gear is provided with 11 teeth, and the 3rd gear is provided with 9 teeth.
5. according to little grade outer three speed hubs of opening of the one described in claim 1 to 4 any one, it is characterized in that: described the first gear and the second gear is forced is installed on pawl seat.
6. little grade outer three speed hubs of opening of one according to claim 5, is characterized in that: described the 3rd gear side is extended and had externally threaded threaded portion, coordinate the internal lock screw thread of pawl seat to fix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420040951.7U CN203793034U (en) | 2014-01-22 | 2014-01-22 | External three-speed hub with small width |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420040951.7U CN203793034U (en) | 2014-01-22 | 2014-01-22 | External three-speed hub with small width |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203793034U true CN203793034U (en) | 2014-08-27 |
Family
ID=51375288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420040951.7U Expired - Lifetime CN203793034U (en) | 2014-01-22 | 2014-01-22 | External three-speed hub with small width |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203793034U (en) |
-
2014
- 2014-01-22 CN CN201420040951.7U patent/CN203793034U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200921 Address after: Building 3, No.28, Gongye 1st Road, dawangshan, Shajing street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Xuzhen Precision Hardware Products Co.,Ltd. Address before: 528000 Guangdong province Foshan city Shunde District Lunjiao Street Family Road Jun Hui heights 2 1 401 Patentee before: Yu Diqing |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140827 |
|
| CX01 | Expiry of patent term |