CN104477304A - Belt pulley bicycle with joint rear shaft fork frame - Google Patents
Belt pulley bicycle with joint rear shaft fork frame Download PDFInfo
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- CN104477304A CN104477304A CN201410714568.XA CN201410714568A CN104477304A CN 104477304 A CN104477304 A CN 104477304A CN 201410714568 A CN201410714568 A CN 201410714568A CN 104477304 A CN104477304 A CN 104477304A
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- connecting portion
- bicycle
- belt pulley
- connecting part
- section
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Abstract
The invention relates to a bicycle and in particular relates to a belt pulley bicycle with a joint rear shaft fork frame. The middle of the upper fork of the rear shaft fork frame is divided into three parts, namely an upper connecting part, a middle connecting block and a lower connecting part in the order from top to bottom; the angle of the section is relative to the direction of an angle of 45 degrees; a reinforcing connecting plug is welded at the fracture of the upper connecting part and the lower connecting part; the middle connecting block is fixedly connected with the reinforcing connecting plug of the upper connecting part and the lower connecting part by use of a screw perpendicular to the section. Due to the assembly and connection of the three parts, namely the fixed connection of the reinforcing connecting plug and the middle connecting block both connected with the upper connecting part and the reinforcing connecting plug connected with the lower connecting part by use of the screw perpendicular to the section, the process structure is beautiful and the strength of the body of the bicycle is improved.
Description
Technical field
The present invention relates to a kind of bicycle, particularly relate to a kind of belt pulley bicycle of spliced rear axle crotch.
Background technology
Belt pulley bicycle is the bicycle using belt pulley to replace sprocket wheel, this kind of bicycle is in fitting process, because belt pulley will be inserted in rear axle crotch, and belt pulley has the property of can not be split again, therefore need the upper fork of rear axle crotch or lower fork to split, existing way uses plate structure, and be fixedly connected with, facilitate belt pulley to penetrate, but this kind of structural manufacturing process unsightly, and intensity is poor.
Summary of the invention
Technical matters to be solved by this invention overcomes the deficiencies in the prior art, provides a kind of process structure attractive in appearance, improves the belt pulley bicycle of the spliced rear axle crotch of intensity.
The present invention is achieved by the following technical programs:
A kind of belt pulley bicycle of spliced rear axle crotch, breaking in the middle part of the upper fork of rear axle crotch is three parts, be followed successively by connecting portion from top to bottom, middle part contiguous block and lower connecting portion, the angle of section is relative miter angle direction, shutoff is in succession strengthened in upper connecting portion and the welding of lower connecting portion incision position, described middle part contiguous block by the reinforcement perpendicular to screw and the upper connecting portion of section and lower connecting portion in succession shutoff be fixedly connected with.
The invention has the beneficial effects as follows:
Owing to being connected by three sections fit, the reinforcement shutoff in succession be namely connected with upper connecting portion, middle part contiguous block and the reinforcement that is connected with lower connecting portion in succession shutoff are fixedly connected with by the screw perpendicular to section, make process structure attractive in appearance, improve the intensity of car body.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present invention.
Fig. 2 is the main TV structure schematic diagram of upper fork of the present invention.
In figure: 1. rear axle crotch, pitch 2., 3. go up connecting portion, contiguous block 4., 5. descends connecting portion, 6. strengthens shutoff in succession, 7. screw.
Detailed description of the invention
In order to make those skilled in the art understand technical scheme of the present invention better, below in conjunction with accompanying drawing and most preferred embodiment, the present invention is described in further detail.
As shown in the figure, breaking in the middle part of the upper fork 2 of rear axle crotch 1 of the present invention is three parts, be followed successively by connecting portion 3 from top to bottom, middle part contiguous block 4 and lower connecting portion 5, the angle of section is relative miter angle direction, shutoff in succession 6 is strengthened in upper connecting portion and the welding of lower connecting portion incision position, described middle part contiguous block by the reinforcement perpendicular to screw 7 and the upper connecting portion of section and lower connecting portion in succession shutoff be fixedly connected with.
Owing to being connected by three sections fit, the reinforcement shutoff in succession be namely connected with upper connecting portion, middle part contiguous block and the reinforcement that is connected with lower connecting portion in succession shutoff are fixedly connected with by the screw perpendicular to section, make process structure attractive in appearance, improve the intensity of car body.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (1)
1. the belt pulley bicycle of a spliced rear axle crotch, it is characterized in that, breaking in the middle part of the upper fork of rear axle crotch is three parts, be followed successively by connecting portion from top to bottom, middle part contiguous block and lower connecting portion, the angle of section is relative miter angle direction, and shutoff is in succession strengthened in upper connecting portion and the welding of lower connecting portion incision position, described middle part contiguous block by the reinforcement perpendicular to screw and the upper connecting portion of section and lower connecting portion in succession shutoff be fixedly connected with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410714568.XA CN104477304A (en) | 2014-11-28 | 2014-11-28 | Belt pulley bicycle with joint rear shaft fork frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410714568.XA CN104477304A (en) | 2014-11-28 | 2014-11-28 | Belt pulley bicycle with joint rear shaft fork frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104477304A true CN104477304A (en) | 2015-04-01 |
Family
ID=52751961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410714568.XA Pending CN104477304A (en) | 2014-11-28 | 2014-11-28 | Belt pulley bicycle with joint rear shaft fork frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104477304A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4813591A (en) * | 1988-04-04 | 1989-03-21 | Schwinn Bicycle Company | Method of fabricating a rear fork assembly for a bicycle and drop out bracket therefor |
| CN2559544Y (en) * | 2002-07-15 | 2003-07-09 | 得欧有限公司 | Bicycle frame with improved structure |
| CN201023629Y (en) * | 2007-04-29 | 2008-02-20 | 陈志刚 | Electric vehicle body rear horizontal fork |
| CN201447025U (en) * | 2009-07-31 | 2010-05-05 | 刘玉山 | Main holder for bicycle |
| CN102152832A (en) * | 2010-02-11 | 2011-08-17 | 张钧迪 | Dismountable bicycle frame structure |
| CN203450283U (en) * | 2013-08-01 | 2014-02-26 | 大行科技(深圳)有限公司 | Folding connector for rod pieces |
| CN204355231U (en) * | 2014-11-28 | 2015-05-27 | 天津轮翼运动器材有限公司 | A kind of belt pulley bicycle with rear axle crotch contiguous block |
-
2014
- 2014-11-28 CN CN201410714568.XA patent/CN104477304A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4813591A (en) * | 1988-04-04 | 1989-03-21 | Schwinn Bicycle Company | Method of fabricating a rear fork assembly for a bicycle and drop out bracket therefor |
| CN2559544Y (en) * | 2002-07-15 | 2003-07-09 | 得欧有限公司 | Bicycle frame with improved structure |
| CN201023629Y (en) * | 2007-04-29 | 2008-02-20 | 陈志刚 | Electric vehicle body rear horizontal fork |
| CN201447025U (en) * | 2009-07-31 | 2010-05-05 | 刘玉山 | Main holder for bicycle |
| CN102152832A (en) * | 2010-02-11 | 2011-08-17 | 张钧迪 | Dismountable bicycle frame structure |
| CN203450283U (en) * | 2013-08-01 | 2014-02-26 | 大行科技(深圳)有限公司 | Folding connector for rod pieces |
| CN204355231U (en) * | 2014-11-28 | 2015-05-27 | 天津轮翼运动器材有限公司 | A kind of belt pulley bicycle with rear axle crotch contiguous block |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150401 |
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| RJ01 | Rejection of invention patent application after publication |