CN203638035U - Anti-drop bicycle variable speed gear - Google Patents
Anti-drop bicycle variable speed gear Download PDFInfo
- Publication number
- CN203638035U CN203638035U CN201420003216.9U CN201420003216U CN203638035U CN 203638035 U CN203638035 U CN 203638035U CN 201420003216 U CN201420003216 U CN 201420003216U CN 203638035 U CN203638035 U CN 203638035U
- Authority
- CN
- China
- Prior art keywords
- drop
- fixing
- variable speed
- speed gear
- bicycle
- 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
- 239000004677 Nylon Substances 0.000 claims abstract description 6
- 229920001778 nylon Polymers 0.000 claims abstract description 6
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 1
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- Gears, Cams (AREA)
Abstract
The utility model discloses an anti-drop bicycle variable speed gear. The anti-drop bicycle variable speed gear comprises a fixed frame, a detachable chain wheel is arranged at the bottom of the fixed frame, and detachable anti-skid units made of nylon are arranged on two sides of the chain wheel respectively. Owing to the nylon anti-skid units and wedge-shaped protection frames on the anti-skid units, chains can be effectively limited in position and thoroughly prevented from falling off rear small gears, reliability and stability of a bicycle speed change are improved, and the anti-drop bicycle variable speed gear is simple in structure, convenient to mount and strong in practicability.
Description
Technical Field
The present invention relates to a bicycle component, and more particularly, to an anti-drop bicycle transmission.
Background
The bicycle speed variator is a common bicycle part and has the function of changing the speed of a bicycle by changing the matching of a chain and gear discs with different front and rear sizes. The rear pinion of the existing transmission is usually directly hung on a support, when the road condition is bumpy, and a user changes the speed, the chain can be loosened momentarily, and the chain can fall off from the rear pinion, so that the riding safety is affected.
Disclosure of Invention
The utility model discloses solve the technical problem that prior art exists mainly to an anti-drop's bicycle speed change gear is provided.
The above technical problem of the present invention can be solved by the following technical solutions:
the utility model provides an anti-drop's bicycle speed change gear, anti-drop's bicycle speed change gear contain a fixed bolster, the bottom of fixed bolster be equipped with a detachable sprocket, the both sides of sprocket be equipped with a detachable antiskid unit respectively.
As the embodiment of the utility model discloses the preferred, the lower extreme of fixed bolster be equipped with a pair of installation slot hole, the antiskid unit on be equipped with a pair of fixing hole and a wedge-shaped protective frame, a pair of set screw runs through respectively fixing hole and installation slot hole be connected with a pair of fixation nut.
As the preferred embodiment of the utility model, the anti-skid device is made of nylon.
The utility model discloses an anti-drop's bicycle speed change gear utilizes the antiskid unit that nylon was made, because be equipped with wedge-shaped protection frame on the antiskid unit, can effectively restrict the position of chain, thoroughly prevent that it from coming off from the back pinion, improved bicycle derailleur's reliability and stability, simple structure, simple to operate, the practicality is strong.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic perspective view of an anti-drop bicycle transmission according to the present invention;
FIG. 2 is an exploded perspective view of the anti-dropout bicycle shifting apparatus of FIG. 1;
FIG. 3 is an enlarged detail view of area A of the anti-dropout bicycle shifting apparatus of FIG. 2;
wherein,
1. a drop-proof bicycle transmission; 2. fixing a bracket; 21. installing a long hole; 3. a sprocket; 4. an anti-skid device; 41. a fixing through hole; 42. protecting the frame; 5. fixing a nut; 6. and fixing the screw.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.
As shown in fig. 1 to 3, the anti-drop bicycle transmission 1 of the present invention comprises a fixing bracket 2, a detachable sprocket 3 is disposed at the bottom of the fixing bracket 2, and two detachable anti-slip devices 4 are disposed on two sides of the sprocket 3 respectively.
The lower end of the fixing bracket 2 is provided with a pair of mounting long holes 21, the antiskid unit 4 is provided with a pair of fixing through holes 41 and a wedge-shaped protective frame 42, and a pair of fixing screws 6 respectively penetrate through the fixing through holes 41 and the mounting long holes 21 and are connected with a pair of fixing nuts 5.
The anti-skid device 4 is made of nylon.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (2)
1. An anti-drop bicycle speed change device is characterized in that the anti-drop bicycle speed change device (1) comprises a fixed support (2), a detachable chain wheel (3) is arranged at the bottom of the fixed support (2), and two detachable anti-skid devices (4) are respectively arranged on two sides of the chain wheel (3); the antiskid device is characterized in that a pair of mounting long holes (21) are formed in the lower end of the fixing support (2), a pair of fixing through holes (41) and a wedge-shaped protective frame (42) are formed in the antiskid device (4), and a pair of fixing screws (6) penetrate through the fixing through holes (41) and the mounting long holes (21) respectively and are connected with a pair of fixing nuts (5).
2. A dropout prevention bicycle gearshift as claimed in claim 1, wherein the anti-skid device (4) is made of nylon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420003216.9U CN203638035U (en) | 2014-01-04 | 2014-01-04 | Anti-drop bicycle variable speed gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420003216.9U CN203638035U (en) | 2014-01-04 | 2014-01-04 | Anti-drop bicycle variable speed gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203638035U true CN203638035U (en) | 2014-06-11 |
Family
ID=50869302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420003216.9U Expired - Lifetime CN203638035U (en) | 2014-01-04 | 2014-01-04 | Anti-drop bicycle variable speed gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203638035U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103661782A (en) * | 2014-01-04 | 2014-03-26 | 何敬丽 | Anti-separation bicycle transmission |
-
2014
- 2014-01-04 CN CN201420003216.9U patent/CN203638035U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103661782A (en) * | 2014-01-04 | 2014-03-26 | 何敬丽 | Anti-separation bicycle transmission |
| CN103661782B (en) * | 2014-01-04 | 2016-03-30 | 朱德仲 | A kind of derailleur of slip-off preventing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140611 Effective date of abandoning: 20160330 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |