CN204937369U - The eccentric five-way middle axle assembly of the forced anodontia line of bicycle - Google Patents
The eccentric five-way middle axle assembly of the forced anodontia line of bicycle Download PDFInfo
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- CN204937369U CN204937369U CN201520520596.8U CN201520520596U CN204937369U CN 204937369 U CN204937369 U CN 204937369U CN 201520520596 U CN201520520596 U CN 201520520596U CN 204937369 U CN204937369 U CN 204937369U
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- eccentric
- connecting rod
- eccentric structure
- side eccentric
- chain
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- 241001014327 Anodontia Species 0.000 title claims abstract description 12
- 206010002583 anodontia Diseases 0.000 title claims abstract description 12
- 230000005212 anodontia Effects 0.000 title claims abstract description 12
- 230000000694 effects Effects 0.000 abstract description 2
- 241000251468 Actinopterygii Species 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model discloses the eccentric five-way middle axle assembly of the forced anodontia line of a kind of bicycle, comprise left side eccentric structure and right side eccentric structure, left side eccentric structure comprises left side bearing dustproof cover, left side bottom bracket bearing, left side eccentric shaft bowl, right side eccentric structure comprises right side bearing dustproof cover, right side bottom bracket bearing, right side eccentric shaft bowl, be connected, and one end of connecting rod A and connecting rod B is respectively arranged with screw thread between left side eccentric structure with right side eccentric structure by connecting rod A with connecting rod B.The five-way middle axle assembly that the utility model provides utilizes eccentric principle, by changing the mechanical periodicity relation of position between crank chain wheel axle center and vehicle frame trailing wheel center-point, play the effect changing chain tension, when eccentric for the five-way center of circle is rotated to assigned address, human body own wt presses down and eccentric wheel structure can be forced automatically to maintain chain tension balance, chain produces stretching and eccentric structure can be caused to slip away assigned address after reaching service life, thus the chain that reminding user to replace is new.
Description
Technical field
The utility model belongs to technical field of bicycles, is specifically related to the eccentric five-way middle axle assembly of the forced anodontia line of a kind of bicycle.
Background technology
The chain tension of tradition single speed or inner speed change bicycle, be by make rear axis after vehicle frame fish mouth chute in pintle slide anteroposterior come, easily occur that trailing wheel deflects, cause aligning difficulty, and move forward and backward and cause brake shoes to need repeatedly to adjust and align the complicated problem being difficult to regulate such as rim brake limit, and trample for a long time and can cause wheel drive side under the pulling force of chain, black nut and vehicle frame fish mouth chute produce relative sliding, then chain is caused to get loose, trailing wheel beat, even frame distortion, axle center nut such as to drop at the dangerous situation.Degree of tightness trailing wheel nut slides the wearing and tearing that also can cause vehicle frame car paint in vehicle frame fish tail hook repeatedly.After fish mouth, pintle itself is friction location structure, also can cause movable displacement riding, affect the normal core wheel of vehicle and align and maintain suitable chain tension when jolting by force and impacting on road surface.
Utility model content
Inconvenience is used for bicycle single speed system chain tension adjust structure in prior art, easily loosen, location difficulty, vehicle frame is easily caused to damage in adjustment process, chain is difficult to the deficiency pointing out user to change after arriving service life, provide the eccentric five-way middle axle assembly of the forced anodontia line of a kind of bicycle.
The utility model is achieved through the following technical solutions:
The eccentric five-way middle axle assembly of the forced anodontia line of a kind of bicycle, comprise left side eccentric structure and right side eccentric structure, described left side eccentric structure comprises left side bearing dustproof cover, left side bottom bracket bearing, left side eccentric shaft bowl, described right side eccentric structure comprises right side bearing dustproof cover, right side bottom bracket bearing, right side eccentric shaft bowl, described left side eccentric structure is connected with connecting rod B by connecting rod A with between the eccentric structure of right side, and one end of described connecting rod A and connecting rod B is respectively arranged with screw thread.What deserves to be explained is, what coordinate with the utility model is the PF30 specification anodontia five-way vehicle frame of 46 millimeters of internal diameters, and frame five-through diametric requirements is wide 68 millimeters, internal diameter 46 millimeters.
Further, described left side eccentric structure runs through along its direction of axis line and offers the first connecting bore and the second connecting bore, and run through along its direction of axis line on the eccentric structure of right side and offer the first tapped bore and the second tapped bore, described connecting rod A passes the first connecting bore and its end and the first tapped bore are screwed together, and described connecting rod B passes the second connecting bore and its end and the second tapped bore are screwed together.
Compared with prior art, the beneficial effects of the utility model are:
1, after trailing wheel location and installation, any slide construction need not be set, in initial setting up adjustment brake structure or dismounting transportation, repeatedly need not correct deflecting and front and back position of trailing wheel.
2, the elasticity of Vehicle Frame Design is larger, more convenient single speed or internal speed-changing setting under realize vehicle disk brake design, conventional single speed car then cannot use disc brake to set under fish mouth structure, the single speed disc brake vehicle frame of other structures is then that after using comparatively complicated slip, pintle designs, and has requirements at the higher level to cost and vehicle frame manufacturing process.
3, the comparatively eccentric five-way structure of traditional eccentric slide block type, without the need to holing on vehicle frame, profile groove destroys frame strength and structural continuity again, 46 millimeters of internal diameters compared with other 55 millimeters and above eccentric shoe architecture quality lighter, less on vehicle frame moulding impact.After fixing, vehicle frame clamped by Y-axis bowl, can not produce left and right displacement, after only needing to unclamp two black nuts, directly be rotated by instrument rotating hole, operator can not be made to contact greasy dirt in adjustment process, uses clean and convenient.
4, eccentric structure makes crank chain wheel axle center and eccentric 8 millimeters of frame five-through practical center, total setting range of rotating one week is 16 millimeters, by setting the distance of appropriate five-way vehicle frame center-point to trailing wheel center-point, when pulling chain to front upper stop, in ride, chain Zhang Jindu makes eccentric wheel structure and vehicle frame that trickle relative sliding occurs because body weight for humans presses down, thus force chain slight tension, if and occur over-tension, can recover slight strained condition when people gently tramples or car is static by the natural elasticity of chain sheetmetal again can not cause chain over-tension to cause service life of chain to reduce.
5, when the position limitation of upper stop is broken through at situation lower crank center of normally riding, then prove that chain exceedes service life, occurs excessive tensile, remind bicyclist to change chain in time, mode is caused danger.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is exploded view of the present utility model.
In figure: eccentric structure on the left of 1-; Eccentric structure on the right side of 2-; 3-connecting rod A; 4-connecting rod B; 5-first connecting bore; 6-second connecting bore; 7-first tapped bore; 8-second tapped bore; 9-radial location hole.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As Fig. 1, shown in Fig. 2, the eccentric five-way middle axle assembly of the forced anodontia line of described a kind of bicycle, comprise left side eccentric structure 1 and right side eccentric structure 2, described left side eccentric structure 1 comprises left side bearing dustproof cover, left side bottom bracket bearing, left side eccentric shaft bowl, described right side eccentric structure 2 comprises right side bearing dustproof cover, right side bottom bracket bearing, right side eccentric shaft bowl, described left side eccentric structure 1 runs through along its direction of axis line and offers the first connecting bore 5 and the second connecting bore 6, and run through along its direction of axis line on right side eccentric structure 2 and offer the first tapped bore 7 and the second tapped bore 8.
Left side eccentric structure 1 and right side eccentric structure 2 link together by connecting rod A3 and connecting rod B4, and one end of described connecting rod A3 and connecting rod B4 is respectively arranged with screw thread.Particularly, described connecting rod A3 passes the first connecting bore 5 and its end and the first tapped bore 7 are screwed together, and described connecting rod B4 passes the second connecting bore 6 and its end and the second tapped bore 8 are screwed together.
When mounted, first connecting rod A3 and connecting rod B4 is each passed through the first connecting bore 5 and the second connecting bore 6 on the eccentric structure 1 of left side, then right side eccentric structure 2 is installed, connecting rod A3 is aimed at the first tapped bore 7 and the second tapped bore 8 respectively with the end of connecting rod B4, and rotating right side eccentric structure 2 can screw connecting rod A3 and connecting rod B4.
In the present embodiment, the cylinder end face of described left side eccentric structure 1 offers radial location hole 9.
What deserves to be explained is, what coordinate with the present embodiment is the PF30 specification anodontia five-way vehicle frame of 46 millimeters of internal diameters, and frame five-through diametric requirements is wide 68 millimeters, internal diameter 46 millimeters.
The eccentric five-way middle axle assembly of the forced anodontia line of the bicycle that the present embodiment provides, can be pressed in frame five-through structure without the need to special upgrade kit, utilize eccentric principle, by changing the mechanical periodicity relation of position between crank chain wheel axle center and vehicle frame trailing wheel center-point, play the effect changing chain tension, control process only needs interior hex tool, control process need not dismounting part, rear axis position can not be changed, when eccentric for the five-way center of circle is rotated to assigned address, human body own wt presses down and eccentric wheel structure can be forced automatically to maintain chain tension balance, chain produces stretching and eccentric structure can be caused to slip away assigned address after reaching service life, thus the chain that reminding user to replace is new.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (2)
1. the eccentric five-way middle axle assembly of the forced anodontia line of bicycle, comprise left side eccentric structure (1) and right side eccentric structure (2), described left side eccentric structure (1) comprises left side bearing dustproof cover, left side bottom bracket bearing, left side eccentric shaft bowl, described right side eccentric structure (2) comprises right side bearing dustproof cover, right side bottom bracket bearing, right side eccentric shaft bowl, it is characterized in that: by connecting rod A(3 between described left side eccentric structure (1) with right side eccentric structure (2)) with connecting rod B(4) be connected, and described connecting rod A(3) with connecting rod B(4) one end be respectively arranged with screw thread.
2. the eccentric five-way middle axle assembly of the forced anodontia line of bicycle according to claim 1, it is characterized in that: described left side eccentric structure (1) is run through offering the first connecting bore (5) and the second connecting bore (6) along its direction of axis line, and run through along its direction of axis line on right side eccentric structure (2) and offer the first tapped bore (7) and the second tapped bore (8), described connecting rod A(3) through the first connecting bore (5) and its end and the first tapped bore (7) be screwed together, described connecting rod B(4) through the second connecting bore (6) and its end and the second tapped bore (8) be screwed together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520520596.8U CN204937369U (en) | 2015-07-17 | 2015-07-17 | The eccentric five-way middle axle assembly of the forced anodontia line of bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520520596.8U CN204937369U (en) | 2015-07-17 | 2015-07-17 | The eccentric five-way middle axle assembly of the forced anodontia line of bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204937369U true CN204937369U (en) | 2016-01-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520520596.8U Expired - Fee Related CN204937369U (en) | 2015-07-17 | 2015-07-17 | The eccentric five-way middle axle assembly of the forced anodontia line of bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204937369U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110104105A (en) * | 2019-06-06 | 2019-08-09 | 杭州源骏创新设计有限公司 | A kind of form can Fast transforms formula perambulator |
-
2015
- 2015-07-17 CN CN201520520596.8U patent/CN204937369U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110104105A (en) * | 2019-06-06 | 2019-08-09 | 杭州源骏创新设计有限公司 | A kind of form can Fast transforms formula perambulator |
| CN110104105B (en) * | 2019-06-06 | 2023-12-15 | 杭州源骏创新设计有限公司 | Form-quickly changeable baby carriage |
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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: 20180905 Address after: 518000 one of the 5 floors of 9B building, Taihua Indus Industrial Park, Baoan District City, Shenzhen, Guangdong. Patentee after: 700KIDS (SHENZHEN) TECHNOLOGY Co.,Ltd. Address before: 100010 301-1, back street, Dongcheng District Art Museum, Beijing 1, 301-1. Patentee before: Seven hundred (Beijing) Technology Development Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |