CN201049717Y - Internal key type five-way pipe construction - Google Patents
Internal key type five-way pipe construction Download PDFInfo
- Publication number
- CN201049717Y CN201049717Y CNU2007201425216U CN200720142521U CN201049717Y CN 201049717 Y CN201049717 Y CN 201049717Y CN U2007201425216 U CNU2007201425216 U CN U2007201425216U CN 200720142521 U CN200720142521 U CN 200720142521U CN 201049717 Y CN201049717 Y CN 201049717Y
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- bearing
- way pipe
- way
- embedding hole
- key type
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- Expired - Fee Related
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Abstract
An inner button type five-way pipe structure is provided with a five-way pipe body in which a through hole is formed. A bearing embedded hole with comparatively large diameter is formed on both ends of the surrounding pipe wall of the through hole, respectively; a bearing is fixedly embedded in each bearing embedded hole, respectively. Through the integral bearing combination design, the utility model enables the five-way pipe body to be provided with a longer axis and a larger diameter, so that the distance between the two bearings is broadened to achieve a stable effect in the perforating arrangement and matching of a crank shaft, and the connection area among a lower pipe, a middle pipe and a lower fork of a vehicle frame is increased to enhance the overall rigidity of the vehicle frame.
Description
Technical field
The utility model relates to a kind of structure of vehicle frame, refers to a kind of five-way pipe structure of vehicle frame especially.
Background technology
The five-way pipe structure of existing vehicle frame as shown in Figs. 4-6, comprise First Five-Year Plan siphunculus body (40), this five-way body (40) wears for the straight tube body and in inside and forms a perforation (41), form a screw thread (42) respectively in the two ends of tube wall on every side in perforation (41), in each screw thread (42) difference screw lock one bearing seat (43), in the embedded setting of each bearing seat (43) position one bearing (44).
Though above-mentioned five-way pipe structure can directly be arranged at bicycle rack and wear for crank shaft with two bearings (44), yet be incorporated into five-way body (40) because bearing seat (43) is a form with screw lock, thus screw lock in conjunction with the time to be offset and to cause bearing (44) that the position is set easily inaccurate.
Simultaneously because bearing seat (43) screw lock location is difficult, therefore for making bearing seat (43) combination easily, five-way body (40) can't be set to the long setting of axial length, therefore the distance between the two bearings (44) can't strengthen, add that existing five-way body (40) length is between the 68mm to 73mm, so remove when making crank shaft be arranged between the bearing (44) the rotation running comparatively the shakiness, provide under the bicycle rack manage, middle pipe and lower fork bonded area be also less, in conjunction with rigidity relatively poor.
In addition and since bearing seat (43) be other screw lock in five-way body (40), so make five-way pipe structure more and make outward appearance it seems not have globality by outside appreciiable part.
The utility model content
Since the five-way pipe of existing vehicle frame structure be bearing seat with screw lock for the bearing combination, shortcoming such as cause therefore that part is many, rigidity is relatively poor and the degree of stability of cooperation crank shaft is relatively poor.The utility model in view of this, main purpose is with in integrally formed bearing embedding hole, five-way pipe two ends structure, solves the shortcoming of above-mentioned existing five-way pipe structure thus.
For achieving the above object, the utility model provides a kind of internal key type five-way pipe structure, and it comprises:
First Five-Year Plan siphunculus body, this five-way body are the straight tube body and wear in inside and to form a perforation, form the bigger bearing embedding hole of a diameter respectively in the two ends of tube wall on every side in this perforation; And
Two bearings, two bearings is fixed in the cooresponding bearing embedding hole for being embedded respectively.
Further, the utility model in each bearing embedding hole around the external end edge of tube wall form the bigger cover plate embedding hole of a diameter, be embedded respectively in each cover plate embedding hole and fix a cover plate, this cover plate is the annular arrangement lamellar body.
Preferable, described five-way body is that length is the straight tube body of 94mm.
The utility model when using be the tube wall with the five-way body provide bicycle rack under manage, middle pipe and lower fork combination, since the five-way body be directly in the bearing embedding hole at two ends in conjunction with bearing, therefore the bearing combination firmly is difficult for that drift condition is arranged, so the utility model can reach following effect:
1, because therefore bearing can be made as the axial length of five-way body long form and increase distance between the bearing in conjunction with firm, can increase the degree of stability when crank shaft being set wearing thus.
2, simultaneously because the five-way body can provide down the area of pipe, middle pipe and lower fork combination to strengthen, therefore make vehicle frame have stronger rigidity.
3, because bearing is to be embedded in the two ends of five-way body, therefore can reduce the setting of part, except that part was simplified, outward appearance also had globality.
Description of drawings
Fig. 1 is the block diagram of the utility model preferred embodiment.
Fig. 2 is the exploded drawings of the utility model preferred embodiment.
Fig. 3 is the section-drawing of the utility model preferred embodiment.
Fig. 4 is the block diagram of existing five-way pipe structure.
Fig. 5 is the exploded drawings of existing five-way pipe structure.
Fig. 6 is the section-drawing of existing five-way pipe structure.
Description of reference numerals
(10) five-way body (11) perforation
(12) cover plate embedding hole, bearing embedding hole (13)
(20) bearing (30) cover plate
(40) five-way body (41) perforation
(42) screw thread (43) bearing seat
(44) bearing
The specific embodiment
The utility model is a kind of internal key type five-way pipe structure, and please referring to the preferred embodiment of Fig. 1 to 3, it comprises:
First Five-Year Plan siphunculus body (10), five-way body (10) is the straight tube body of 94 mm for length, it also wears in the internal axis position and to form a perforation (11), form the bigger round bearing embedding hole (12) of a diameter respectively in the two ends of tube wall on every side in perforation (11), the external end edge of tube wall forms the bigger circular cover embedding hole (13) of a diameter on every side in bearing embedding hole (12).
Two bearings (20), two bearings (20) are embedded respectively and are fixed in the cooresponding bearing embedding hole (12).
Two cover plates (30), two cover plates (30) are the annular arrangement lamellar body, itself and respectively with around be embedded and be fixed in cooresponding cover plate embedding hole (13).
Tube wall with five-way body (10) when the utility model uses provides pipe under the bicycle rack, middle pipe and the bonding of lower fork one, since five-way body (10) be directly in the bearing embedding hole (12) at two ends in conjunction with bearing (20), therefore bearing (20) is in conjunction with firmly being difficult for that drift condition is arranged, the axial length of five-way body (10) can be made as long form to strengthen the distance between the bearing (20), increase the degree of stability when crank shaft being set wearing thus.
Simultaneously because the caliber of five-way body (10) strengthens and the axial length lengthening, therefore can provide down pipe, middle pipe and the bigger bonded area of lower fork, make vehicle frame have stronger rigidity, and because bearing (20) is embedded in the two ends of five-way body (10), therefore can reduce the setting of part, except that part was simplified, outward appearance was also comparatively totally attractive in appearance.
Claims (3)
1. an internal key type five-way pipe structure is characterized in that, comprising:
First Five-Year Plan siphunculus body, this five-way body are the straight tube body and wear in inside and to form a perforation, form the bigger bearing embedding hole of a diameter respectively in the two ends of tube wall on every side in this perforation; And
Two bearings, two bearings are embedded respectively and are fixed in the cooresponding bearing embedding hole.
2. internal key type five-way pipe structure according to claim 1 is characterized in that the external end edge of tube wall forms the bigger cover plate embedding hole of a diameter in described each bearing embedding hole, is embedded respectively in each cover plate embedding hole and fixes a cover plate on every side, and this cover plate is the annular arrangement lamellar body.
3. internal key type five-way pipe structure according to claim 1 and 2 is characterized in that described five-way body length is the straight tube body of 94mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201425216U CN201049717Y (en) | 2007-05-14 | 2007-05-14 | Internal key type five-way pipe construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201425216U CN201049717Y (en) | 2007-05-14 | 2007-05-14 | Internal key type five-way pipe construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201049717Y true CN201049717Y (en) | 2008-04-23 |
Family
ID=39336195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201425216U Expired - Fee Related CN201049717Y (en) | 2007-05-14 | 2007-05-14 | Internal key type five-way pipe construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201049717Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106394795A (en) * | 2016-11-21 | 2017-02-15 | 浙江闪电车业有限公司 | Front chain wheel structure of bicycle |
| WO2020038385A1 (en) * | 2018-08-21 | 2020-02-27 | 上海科属美机械有限公司 | Improved bicycle frame structure |
-
2007
- 2007-05-14 CN CNU2007201425216U patent/CN201049717Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106394795A (en) * | 2016-11-21 | 2017-02-15 | 浙江闪电车业有限公司 | Front chain wheel structure of bicycle |
| WO2020038385A1 (en) * | 2018-08-21 | 2020-02-27 | 上海科属美机械有限公司 | Improved bicycle frame 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 |
Granted publication date: 20080423 Termination date: 20150514 |
|
| EXPY | Termination of patent right or utility model |