CN205707124U - A kind of bicycle center shaft structure - Google Patents
A kind of bicycle center shaft structure Download PDFInfo
- Publication number
- CN205707124U CN205707124U CN201620125373.6U CN201620125373U CN205707124U CN 205707124 U CN205707124 U CN 205707124U CN 201620125373 U CN201620125373 U CN 201620125373U CN 205707124 U CN205707124 U CN 205707124U
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- CN
- China
- Prior art keywords
- pipe
- shaft structure
- bicycle
- right part
- left part
- 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 discloses a kind of bicycle center shaft structure, this middle shaft structure contains and may be installed the right part at screw-type frame five-through pipe two ends and left part or for being arranged on right part, left part and the connecting tube at screwless frame five-through pipe two ends.It is characterized in that: when being used for installing screw-type frame five-through pipe, described right part and left part have the external threaded surface matched with frame five-through pipe female thread；When being used for installing screwless frame five-through pipe, described connecting tube has external threaded surface, and described right part and left part have the interior threaded surface matched with connecting tube external screw thread.The middle shaft structure of both the above mounting means all has the outer surface matched with bearing arrangement inner ring, and has ring gear surface.
Description
Technical field
This utility model relates to a kind of bicycle center shaft structure and matched installation and removal instrument.
Background technology
The most becoming a kind of entertainment form and the means of transportation of increased popularity.And, have become as a kind of the most popular athletic sports in amateur and professional athlete by bike.No matter bicycle use is in entertaining, transporting or race, and bicycle industry is all updating the various assemblies of bicycle, so that bicycle is easier to assembling and can afford.
A specific part through a large amount of bicycles redesigned is exactly the Five-way tube structure of bicycle and matched middle shaft structure in the past few years.Five-way tube structure is that cycle frame is for installing a part of chain wheel system for bicycle.The two ends, Five-way tube left and right of traditional bicycle have female thread, and the middle axle device of sprocket system is threaded connection to be installed and on Five-way tube closely；Occur in that a kind of threadless bottom bracket structure for bicycles afterwards, middle axle device by interference fit install closely with Five-way tube within.But, it is evident that, the bearing arrangement that what is common is that middle shaft structure of this two classes middle axle device is all to install and within middle shaft structure, the size so making bearing arrangement is limited by middle shaft structure, the feature of middle shaft structure involved in this utility model is to be installed and outside middle shaft structure by bearing arrangement, so size of bearing arrangement can not be limited by middle shaft structure such that it is able to use the bearing arrangement of more large scale specification, so improves the durability of bearing arrangement and the integral rigidity of sprocket system.
Dismantling device described in this utility model matches with the middle shaft structure described in this utility model, have an advantage in that and only need an instrument just can mount and dismount being arranged on the middle shaft structure described in the utility model on the bicycle five-pipe of different size, the most easy to use, and the most common middle shaft structure needs the installation of bicycle five-pipe and the dismounting of different instrument correspondence different sizes.
Summary of the invention
It is less that the technical problems to be solved in the utility model is to provide a kind of part, low cost of manufacture, and overall weight is relatively light, and bulk strength is high, dismounts simple bicycle center shaft structure and corresponding dismantling device.
To achieve these goals, the technical solution of the utility model is as follows.
A kind of bicycle center shaft structure is as described below:
One, when installing with screw-type frame five-through pipe 10, including right part 1, left part 2, described right part 1 and left part 2 have external threaded surface 1c and 2c matched with frame five-through pipe female thread 10c and 10d, described right part 1 and left part 2 have ring gear surface 1a and 2a, and described right part 1 and left part 2 have outer surface 1b and 2b matched with bearing arrangement inner ring.
nullTwo，When installing with screwless frame five-through pipe 11，Including right part 3，Left part 4，Connecting tube 5 and gasket ring 7，Described connecting tube 5 has right-hand member external threaded surface 5b and left end external threaded surface 5a，Described right part 3 and left part 4 are respectively provided with right-hand member external threaded surface 5b with connecting tube 5 and left end external threaded surface 5a matches interior threaded surface 3c and 4c，Described right part 3 and left part 4 are respectively provided with outer surface 3e and 4e that the inner surface 7b with gasket ring 7 matches，Described right part 3 and left part 4 are respectively provided with ring gear surface 3a and 4a，Described right part 3 and left part 4 are respectively provided with outer surface 3b and 4b matched with bearing arrangement inner ring，Described gasket ring 7 is manufactured by flexible material，It has the inner surface 7b that outer surface 3e and 4e with right part 3 and left part 4 matches，It has the 7a matched with inner surface 11c and 11d of frame five-through pipe 11.
Accompanying drawing explanation
Fig. 1 is for being installed on the right part of screw-type bicycle five-pipe and left part axle side schematic diagram.
Fig. 2 is for being installed on the right part of screwless bicycle five-pipe and left part axle side schematic diagram.
Fig. 3 is the left part for being installed on screwless bicycle five-pipe, right part and the axle side schematic diagram of gasket ring assembling.
Fig. 4 is for being installed on the right part of screwless bicycle five-pipe and connecting tube assembled shaft side schematic diagram.
Fig. 5 is the tool shaft side schematic diagram for dismounting middle shaft structure.
Fig. 6 is the assembled shaft side schematic diagram of middle shaft structure and screw-type bicycle five-pipe.
Fig. 7 is the dismounting axle side schematic diagram of middle shaft structure and screw-type bicycle five-pipe.
Fig. 8 is the assembled shaft side schematic diagram of middle shaft structure and screwless bicycle five-pipe.
Fig. 9 is the demounting procedure one axle side schematic diagram of middle shaft structure and screwless bicycle five-pipe.
Figure 10 is the demounting procedure two axle side schematic diagram of middle shaft structure and screwless bicycle five-pipe.
Figure 11 is the demounting procedure three axle side schematic diagram of middle shaft structure and screwless bicycle five-pipe.
Detailed description of the invention
In order to make technological means of the present utility model, creation characteristic is readily apparent from understanding with reaching purpose, this utility model is expanded on further below in conjunction with specific embodiment.
When being installed on screw-type bicycle five-pipe 10, the external toothing 8a of instrument 8 is matched with ring gear 1a and 2a of right part 1 and left part 2 respectively, force application means 9 inserts the tooling hole 8b of instrument 8 respectively, and rotate into two ends 10c and 10d of bicycle five-pipe 10 along with the screw-in direction of external screw thread 1c and 2c of right part 1 and left part 2 respectively, now right part 1 and left part 2 can move along the middle direction of bicycle five-pipe 10, until the end face 2d of the end face 1d of right part 1 and left part 2 contacts with two end face 10a and 10b of bicycle five-pipe 10 and locks, the most just the middle shaft structure installation at screw-type bicycle five-pipe is completed.
When middle shaft structure is dismantled from screw-type bicycle five-pipe 10, the external toothing 8a of instrument 8 is matched with ring gear 1a and 2a of right part 1 and left part 2 respectively, force application means 9 inserts the tooling hole 8b of instrument 8 respectively, and rotate along with the back-out direction of external screw thread 1c and 2c of right part 1 and left part 2 respectively, now, right part 1 and left part 2 can be along the outer side shiftings of bicycle five-pipe 10, until right part 1 and left part 2 depart from from the two ends of bicycle five-pipe 10 completely, the most just complete the middle shaft structure dismounting from screw-type bicycle five-pipe.
nullWhen being installed on screwless bicycle five-pipe 11，First gasket ring 7 is installed and on outer surface 3e and 4e of right part 3 and left part 4 the most closely，The external toothing 8a of instrument 8 is matched with the ring gear 3a of right part 3，Force application means 9 inserts the tooling hole 8b of instrument 8，And interior threaded surface 3c of right part 3 is smeared in advance with right-hand member external threaded surface 5b of connecting tube 5 super glue of similar epoxy resin glue，Then right part 3 is rotated on the right-hand member thread outer surface 5b of connecting tube 5 along with the screw-in direction of female thread 3c，Now connecting tube 5 and right part 3 define a firm non-removable connector，Then by the left end thread outer surface 5a of connecting tube 5 through bicycle five-pipe 11，Again the external toothing 8a of instrument 8 is matched with the ring gear surface 4a of left part 4，Force application means 9 inserts the tooling hole 8b of instrument 8，And along with the screw-in direction of the left end screw thread 5a of connecting tube 5 and the screw thread 4c of left part 4 rotates，Now right part 3 and left part 4 can move along the middle direction of bicycle five-pipe 11，Until right part end face 3d and left part end face 4d contacts with two end face 11a and 11b of bicycle five-pipe and locks respectively，Now right part 3 and left part 4 are defined with inner surface 11c and 11d of bicycle five-pipe 11 by packing ring 7 the most respectively and coordinate closely，The most just the middle shaft structure installation at screwless bicycle five-pipe is completed.
nullWhen middle shaft structure is dismantled from screwless bicycle five-pipe 11，The external toothing 8a of instrument 8 is matched with ring gear 3a and 4a of right part 3 and left part 4 respectively，Force application means 9 inserts the tooling hole 8b of instrument 8 respectively，And rotate along with the back-out direction of the left end screw thread 5a of connecting tube 5 and the screw thread 4c of left part 4 respectively，Now the lateral direction along bicycle five-pipe 11 for a moment of the centre of right part 3 or left part 4 moves，And another portion also can be stuck on bicycle five-pipe 11 inwall 11c or 11d，Rotation along with force application means 9，One moved in advance can depart from from bicycle five-pipe 11 inwall 11c or 11d along with the outer surface 7a of gasket ring 7 and get loose，Now continue to rotate force application means 9 until the abjection distance of depart from advance one is equivalent to 1 times of the width of gasket ring 7，Now middle shaft structure is each other also in connection status，Then will be similar to that the force application means 12 of hammer taps the instrument 8 on departing from advance that inserts，Until without departing from that get loose from the disengaging of bicycle five-pipe 11 inwall 11c or 11d along with the outer surface 7a of gasket ring 7，Now also in connection status, still and bicycle five-pipe 11 is in the state of getting loose to middle shaft structure each other，Now continue to insert force application means 9 respectively the tooling hole 8b of instrument 8，And rotate along with the back-out direction of connecting tube left end screw thread 5a and the screw thread 4c of left part 4 respectively，Until after left part 4 and connecting tube 5 completely disengage from，The right part 3 being integrally forming with connecting tube 5 and left part 4 also separate from the two ends of bicycle five-pipe 11 completely，The most just the middle shaft structure dismounting from screwless bicycle five-pipe is completed.
Claims (1)
1. a bicycle center shaft structure, this middle shaft structure contains and may be installed the right part at screw-type frame five-through pipe two ends and left part or for being arranged on screwless frame five-through pipe two ends right part, left part and connecting tube, it is characterized in that: when being used for installing screw-type frame five-through pipe, described right part and left part have the external threaded surface matched with frame five-through pipe female thread；When being used for installing screwless frame five-through pipe, described connecting tube has external threaded surface, described right part and left part have the interior threaded surface matched with connecting tube external screw thread, the middle shaft structure of both the above mounting means all has the outer surface matched with bearing arrangement inner ring, and has ring gear surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620125373.6U CN205707124U (en) | 2016-02-18 | 2016-02-18 | A kind of bicycle center shaft structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620125373.6U CN205707124U (en) | 2016-02-18 | 2016-02-18 | A kind of bicycle center shaft structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205707124U true CN205707124U (en) | 2016-11-23 |
Family
ID=57333766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620125373.6U Expired - Fee Related CN205707124U (en) | 2016-02-18 | 2016-02-18 | A kind of bicycle center shaft structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205707124U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108045492A (en) * | 2017-12-22 | 2018-05-18 | 史非 | A kind of fast disassembly type bicycle middle shaft component and its quick-disassembling method |
| CN110282066A (en) * | 2019-07-08 | 2019-09-27 | 八方电气(苏州)股份有限公司 | A kind of sensor for axle component installation structure |
-
2016
- 2016-02-18 CN CN201620125373.6U patent/CN205707124U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108045492A (en) * | 2017-12-22 | 2018-05-18 | 史非 | A kind of fast disassembly type bicycle middle shaft component and its quick-disassembling method |
| CN108045492B (en) * | 2017-12-22 | 2023-06-30 | 史非 | Quick-dismantling type bicycle middle shaft assembly and quick-dismantling method thereof |
| CN110282066A (en) * | 2019-07-08 | 2019-09-27 | 八方电气(苏州)股份有限公司 | A kind of sensor for axle component installation structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 Termination date: 20170218 |