CN202879732U - Bicycle chain tensioning anti-drop device - Google Patents
Bicycle chain tensioning anti-drop device Download PDFInfo
- Publication number
- CN202879732U CN202879732U CN 201220509237 CN201220509237U CN202879732U CN 202879732 U CN202879732 U CN 202879732U CN 201220509237 CN201220509237 CN 201220509237 CN 201220509237 U CN201220509237 U CN 201220509237U CN 202879732 U CN202879732 U CN 202879732U
- Authority
- CN
- China
- Prior art keywords
- shaped support
- bicycle chain
- chain tensioning
- bolt
- drop device
- 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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- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The utility model discloses a bicycle chain tensioning anti-drop device which is characterized in that an upper gear is arranged on an upper U-shaped support in a supported mode through a spindle, notches are respectively formed on the middle portions of two sides of the upper U-shaped support, a lower gear is arranged on a lower U-shaped support through a spindle in a supported mode, two fixing bolts are respectively arranged on the middle portions of the upper parts of two sides of the lower U-shaped support, and the notches of the upper U-shaped support are respectively fixed on the fixing screws of the lower U-shaped support in an inserted mode. Through the installation, the aims of tensioning and anti-drop functions of the bicycle chain can be achieved.
Description
Technical field
The utility model relates to the cycle chain transmission field, is specifically a kind ofly to make the cycle chain tensioning and prevent the cycle chain tensioning anti-dropping device that chain comes off from gear.
Background technology
The chain of existing bicycle does not have tightening device, and bicycle is after the overlong time of riding, and chain fluffs easily, may cause chain to come off from gear, and giving rides brings inconvenience.
Summary of the invention
The purpose of this utility model is the cycle chain tensioning anti-dropping device that provides a kind of simple in structure, easy to adjust.
To achieve these goals, the utility model cogs by rotating shaft support on upper U-shaped support, the middle part of the dual-side of U-shaped support is respectively equipped with notch on described, on lower U-shaped support, by rotating shaft support lower gear is arranged, two bolt of rear end plates are located at respectively the middle part, top of the dual-side of lower U-shaped support, on the interspersed bolt of rear end plate that is fixed on the lower U-shaped support of the notch on the upper U-shaped support.
By above setting, with the upper chain of bicycle and lower chain be installed in of the present utility model cog and lower gear between, adjust the degree of depth that notch inserts bolt of rear end plate, make lax cycle chain be tensioned to appropriate level, then nut on the bolt is locked, make U-shaped support and fastening the combining of lower U-shaped support two parts, reached the purpose of cycle chain tensioning and slip-off preventing.
Description of drawings
Now the utility model is described in further detail by reference to the accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the lateral plan of U-shaped support on the utility model.
Among the figure: 1, upper U-shaped support, 2, cog, 3, notch, 4, lower U-shaped support, 5, lower gear, 6, bolt of rear end plate.
The specific embodiment
As shown in Figure 1, 2, the utility model cogs 2 by rotating shaft support on upper U-shaped support 1, the middle part of the dual-side of U-shaped support 1 is respectively equipped with notch 3 on described, on lower U-shaped support 4, by rotating shaft support lower gear 5 is arranged, two bolt of rear end plates 6 are located at respectively the middle part, top of the dual-side of lower U-shaped support 4, on the notch 3 interspersed bolt of rear end plates 6 that are fixed on the lower U-shaped support 4 on the upper U-shaped support 1.By above setting, with the upper chain of bicycle and lower chain be installed in of the present utility model cog 2 and lower gear 5 between, adjust the degree of depth that notch 3 inserts bolt of rear end plate 6, make lax cycle chain be tensioned to appropriate level, then nut on the bolt 6 is locked, make U-shaped support 1 and fastening the combining of lower U-shaped support 4 two parts, reached the purpose of cycle chain tensioning and slip-off preventing.
Claims (1)
1. cycle chain tensioning anti-dropping device, it is characterized in that: on upper U-shaped support, cog by rotating shaft support, the middle part of the dual-side of U-shaped support is respectively equipped with notch on described, on lower U-shaped support, by rotating shaft support lower gear is arranged, two bolt of rear end plates are located at respectively the middle part, top of the dual-side of lower U-shaped support, on the interspersed bolt of rear end plate that is fixed on the lower U-shaped support of the notch on the upper U-shaped support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220509237 CN202879732U (en) | 2012-09-27 | 2012-09-27 | Bicycle chain tensioning anti-drop device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220509237 CN202879732U (en) | 2012-09-27 | 2012-09-27 | Bicycle chain tensioning anti-drop device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202879732U true CN202879732U (en) | 2013-04-17 |
Family
ID=48071186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220509237 Expired - Fee Related CN202879732U (en) | 2012-09-27 | 2012-09-27 | Bicycle chain tensioning anti-drop device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202879732U (en) |
-
2012
- 2012-09-27 CN CN 201220509237 patent/CN202879732U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20130927 |