CN206598949U - A kind of bicycle middle shaft - Google Patents
A kind of bicycle middle shaft Download PDFInfo
- Publication number
- CN206598949U CN206598949U CN201720194224.XU CN201720194224U CN206598949U CN 206598949 U CN206598949 U CN 206598949U CN 201720194224 U CN201720194224 U CN 201720194224U CN 206598949 U CN206598949 U CN 206598949U
- Authority
- CN
- China
- Prior art keywords
- mounting hole
- shell
- middle shaft
- bicycle middle
- movable sleeve
- 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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Abstract
The utility model belongs to bicycle spare parts and accessories field, specifically related to a kind of bicycle middle shaft, including shell, connecting shaft, bearing assembly, fixed cover and movable sleeve, shell is provided with the first mounting hole, and fixed cover is provided with the second mounting hole, and movable sleeve is provided with the 3rd mounting hole, fixed upper shield is located at one end of shell, movable upper shield is located at the other end of shell, and connecting shaft is sequentially passed through after second mounting hole, the first mounting hole and the 3rd mounting hole, is connected with shell by bearing assembly.Bicycle middle shaft of the present utility model has the advantages that the easy to use, concentricity of assembling is high, sensitivity is good and service life is long.
Description
Technical field
The utility model belongs to bicycle spare parts and accessories field, and in particular to a kind of bicycle middle shaft.
Background technology
Axis, is just installed in the rotatable parts for connecting left and right crank in frame five-through pipe, will determine whole voluntarily
The conversion of the driving force of car, the moment of torsion that the person tramples foot-operated generation is delivered to flywheel, the direct shadow of quality of axis by axis
The quality to whole bicycle is rung, the concentricity requirement of particularly axis is mostly important.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of bicycle middle shaft.
In order to solve the above technical problems, the utility model is adopted the following technical scheme that：
A kind of bicycle middle shaft of the present utility model, including shell, connecting shaft, bearing assembly, fixed cover and movable sleeve, shell
The first mounting hole is provided with, fixed cover is provided with the second mounting hole, and movable sleeve is provided with the 3rd mounting hole, and fixed upper shield is located at outer
One end of shell, movable upper shield is located at the other end of shell, and connecting shaft sequentially passes through the second mounting hole, the first mounting hole and the 3rd installation
Kong Hou, is connected with shell by bearing assembly.
Preferably, the lateral wall of shell one end is provided with the first external screw thread, and the 3rd mounting hole is provided with and the first external screw thread
The first internal thread coordinated.
Preferably, some first teeth are additionally provided with the 3rd mounting hole.
Preferably, the lateral wall of movable sleeve is provided with the second external screw thread.
Preferably, it is additionally provided with first annular convex tendon on the lateral wall of movable sleeve.
Preferably, the lateral wall of fixed cover is provided with some second teeth.
Using bicycle middle shaft of the present utility model, with assembling, easy to use, concentricity is high, sensitivity is good and uses the longevity
The advantages of ordering long.
Brief description of the drawings
Fig. 1 is the structural representation of the bicycle middle shaft of the utility model embodiment；
Fig. 2 is the structural representation of the movable sleeve of the utility model embodiment；
Fig. 3 is the side view of the fixed cover of the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is a part of embodiment of the utility model, rather than whole implementation
Example.Based on the embodiment in the utility model, those of ordinary skill in the art are obtained under the premise of creative work is not made
The every other embodiment obtained, belongs to the scope of the utility model protection.
As Figure 1-3, a kind of bicycle middle shaft of the present utility model, including shell 1, connecting shaft 2, bearing assembly, fixation
Set 3 and movable sleeve 4, shell 1 are provided with the first mounting hole, and fixed cover 3 is provided with the second mounting hole 5, and movable sleeve 4 is provided with the 3rd
Mounting hole 6, fixed cover 3 covers the one end for being located at shell 1, and movable sleeve 4 covers the other end for being located at shell 1, and connecting shaft 2 sequentially passes through second
After mounting hole 5, the first mounting hole and the 3rd mounting hole 6, it is connected with shell 1 by bearing assembly.
Specifically, the lateral wall of the one end of shell 1 is provided with the first external screw thread 7, the 3rd mounting hole 6 is provided with and the first outer spiral shell
The first internal thread 8 that line 7 coordinates, movable sleeve 4 is arranged on shell 1 by the cooperation of the first external screw thread 7 and the first internal thread 8.
Some first teeth 9 are additionally provided with 3rd mounting hole 6, under dismounting during axis, the first teeth 9 and extracting tool
Teeth coordinate.
The lateral wall of movable sleeve 4 is provided with the second external screw thread 10, and the second external screw thread 10 is matched somebody with somebody with the screw thread on cycle frame
Close so that axis is fixedly connected with vehicle frame.
First annular convex tendon 11 is additionally provided with the lateral wall of movable sleeve 4, prevents axis from occurring in bicycle running
Displacement.
The lateral wall of fixed cover 3 is provided with some second teeth 12, under dismounting during axis, the second teeth 12 and dismounting work
Teeth on tool coordinate.
It should be appreciated that exemplary embodiment as described herein is illustrative and be not restrictive.Although being retouched with reference to accompanying drawing
One or more embodiments of the present utility model are stated, it should be understood by one skilled in the art that without departing from appended
In the case of the spirit and scope of the present utility model that claim is limited, the change of various forms and details can be made.
Claims (6)
1. a kind of bicycle middle shaft, it is characterised in that including shell, connecting shaft, bearing assembly, fixed cover and movable sleeve, described outer
Shell is provided with the first mounting hole, and the fixed cover is provided with the second mounting hole, and the movable sleeve is provided with the 3rd mounting hole, described
Fixed upper shield is located at one end of the shell, and the movable upper shield is located at the other end of the shell, and the connecting shaft is sequentially passed through
After second mounting hole, the first mounting hole and the 3rd mounting hole, it is connected with the shell by bearing assembly.
2. bicycle middle shaft as claimed in claim 1, it is characterised in that the lateral wall of described shell one end is provided with outside first
Screw thread, the 3rd mounting hole is provided with the first internal thread coordinated with first external screw thread.
3. bicycle middle shaft as claimed in claim 1, it is characterised in that be additionally provided with some first teeth on the 3rd mounting hole
Tooth.
4. bicycle middle shaft as claimed in claim 1, it is characterised in that the lateral wall of the movable sleeve is provided with the second outer spiral shell
Line.
5. bicycle middle shaft as claimed in claim 1, it is characterised in that the first ring is additionally provided with the lateral wall of the movable sleeve
Shape convex tendon.
6. bicycle middle shaft as claimed in claim 1, it is characterised in that the lateral wall of the fixed cover is provided with some second
Teeth.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621240297X | 2016-11-18 | ||
| CN201621240297 | 2016-11-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206598949U true CN206598949U (en) | 2017-10-31 |
Family
ID=60147353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720194224.XU Expired - Fee Related CN206598949U (en) | 2016-11-18 | 2017-03-01 | A kind of bicycle middle shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206598949U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113977202A (en) * | 2021-11-11 | 2022-01-28 | 深圳鑫浩成科技实业有限公司 | BB middle shaft and preparation process thereof |
-
2017
- 2017-03-01 CN CN201720194224.XU patent/CN206598949U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113977202A (en) * | 2021-11-11 | 2022-01-28 | 深圳鑫浩成科技实业有限公司 | BB middle shaft and preparation process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171031 Termination date: 20200301 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |