Motorcycle frame middle connecting structure

A technology for connecting structures and motorcycles, used in motorcycles, bicycle frames, motor vehicles, etc., can solve the problems of difficulty in ensuring the design strength of the frame, unreasonable force in the middle of the frame, and high production cost of steel castings, and can achieve high reliability. Reasonable force, simple structure and easy transformation effect

Pending Publication Date: 2018-03-30
力帆科技(集团)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there is a steel casting at the left end of the left and right connecting pipes in the middle of the motorcycle frame, and the front left main pipe and the left support pipe are welded on this steel casting. High, and the structure is complex and difficult to form. On the other hand, the force in the middle of the frame is unreasonable, and it is difficult to guarantee the design strength of the original frame.

Method used

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  • Motorcycle frame middle connecting structure
  • Motorcycle frame middle connecting structure
  • Motorcycle frame middle connecting structure

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0019] like figure 1 , figure 2 , image 3 and Figure 4 As shown, the left and right connecting pipes 1 in the middle of the motorcycle frame are made of steel pipes. The left ends of the left and right connecting pipes 1 extend integrally to the left, and a large-diameter section 11 is formed by expanding the pipes. The rear left main pipe 5 is welded to the left and right connecting pipes 1 , the welding place is close to the large-diameter section 11, the front left main pipe 2 and the left support pipe 3 are welded on the large-diameter section 11, the lower connecting pipe 4 is welded to the left support pipe 3, the front left main pipe 2, the left support pipe 3, and the lower connection Pipe 4 and rear left main pipe 5 are also made of steel pipe. In order to avoid interference, the front left main pipe 2 and the left support pipe 3 are flattened...

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Abstract

The invention discloses a motorcycle frame middle connecting structure which comprises a left and right connecting pipe, a front left main pipe, a left supporting pipe, a lower connecting pipe and a rear left main pipe. The lower connecting pipe is welded to the left supporting pipe. The rear left main pipe is welded to the left and right connecting pipe. The left end of the left and right connecting pipe integrally extends leftwards, and a large-diameter section is formed through pipe expansion. Both the front left main pipe and the left supporting pipe are welded to the large-diameter section. The motorcycle frame middle connecting structure is ingenious in design, simple and easy to transform, the shape of a single part is simplified, the structure is more convenient to manufacture, production cost is further reduced, the improved structure makes the middle portion of a motorcycle frame stressed more reasonably, and the design strength of the original motorcycle frame can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of motorcycles, in particular to a connection structure in the middle of a motorcycle frame. Background technique [0002] At present, there is a steel casting at the left end of the left and right connecting pipes in the middle of the motorcycle frame, and the front left main pipe and the left support pipe are welded on this steel casting. High, and the structure is complex and difficult to form. On the other hand, the force in the middle of the frame is unreasonable, and it is difficult to guarantee the design strength of the original frame. Contents of the invention [0003] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a middle connection structure of a motorcycle frame. [0004] The technical scheme of the present invention is as follows: a connection structure in the middle of a motorcycle frame, including left and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62K11/02B62K19/00
CPCB62K11/02B62K19/00
Inventor 林云邓玲
Owner 力帆科技(集团)股份有限公司
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