CN201494572U - Bicycle frame front joint - Google Patents
Bicycle frame front joint Download PDFInfo
- Publication number
- CN201494572U CN201494572U CN2009203074143U CN200920307414U CN201494572U CN 201494572 U CN201494572 U CN 201494572U CN 2009203074143 U CN2009203074143 U CN 2009203074143U CN 200920307414 U CN200920307414 U CN 200920307414U CN 201494572 U CN201494572 U CN 201494572U
- Authority
- CN
- China
- Prior art keywords
- connection pipe
- connecting tube
- upper beam
- beam connecting
- welding
- 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
Links
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- Body Structure For Vehicles (AREA)
Abstract
The utility model relates to a bicycle frame front joint, which comprises a tube body. An upper beam connecting tube and a lower beam connecting tube are arranged on one side of the tube body and integrated with the tube body. The upper beam connecting tube and the lower beam connecting tube formed in one time by pulling up the flanged hole are arranged on the tube body of the front joint, so that when welding with an upper beam and a lower beam, the welding area is large and the welding is firm. The welding contact surfaces are both positioned on the inner walls of the upper beam connecting tube and the lower beam connecting tube of the front joint, and no weld pass is left outside the connecting sites, resulting in low liability of rustiness. The upper beam connecting tube and the lower beam connecting tube are both provided thereon with an observing hole through which the welding position can be well monitored, and the connection sites between the upper beam connecting tube and tube body and between the lower beam connecting tube and the tube body are both provided with curved surface transition, resulting in esthetic appearance.
Description
Technical field
The utility model relates to a kind of bicycle assembly parts, particularly a kind of cycle frame front connector.
Background technology
Cycle frame is the vitals that supports whole vehicle, and as the skeleton of whole car, its safety and aesthetic property are most important.Because body frame structure for automotive is comparatively special, generally all be welded by the parts assembly unit, front connector has body as one of parts, and its significant feature is to connect upper and lower beam by the body side, and simultaneously the body handlebar that is rotationally connected is therefore very important.The tradition front connector mostly is to have access hole in the body side, the upper and lower beam end of vehicle frame and access hole contraposition welding, this connection mode has the following disadvantages: one, because upper and lower beam end of vehicle frame and front connector area of contact are less, therefore cause bonding area less, exist to connect unstable potential safety hazard; During two, owing to upper and lower beam end of vehicle frame and front connector welding, welding bead is at the front connector outer surface, in case the junction paint flake, just easily by corrosion; Three, because welding bead is at the front connector outer surface, so the surface, junction can't accomplish smooth smoothly, influences overall appearance.
The utility model content
The purpose of this utility model is to provide a kind of and is connected firmly, is difficult for corrosion, cycle frame front connector aesthetic in appearance.
The technical scheme that realizes the utility model purpose is: a kind of cycle frame front connector, have body, and described body one side is provided with upper beam connection pipe and underbeam connection pipe, and upper beam connection pipe and underbeam connection pipe and above-mentioned body are integral piece.
All by drawing high the hole flanging one-shot forming, the tube wall of upper beam connection pipe is provided with inspection door for the upper beam connection pipe of above-mentioned cycle frame front connector and underbeam connection pipe, and the tube wall of underbeam connection pipe is provided with inspection door.
The upper beam connection pipe of above-mentioned cycle frame front connector and body junction, underbeam connection pipe and body junction have the arc transition face.
The utlity model has following characteristics: the utility model front connector body is provided with by drawing high one-time formed upper beam connection pipe of hole flanging and underbeam connection pipe, and when welding with upper and lower beam, its bonding area is bigger, firm welding; The welding contact surface can not stay welding bead in the outside, junction all at the upper and lower beam nozzle inner wall of front connector, is difficult for corrosion; Upper and lower beam is taken over and is provided with inspection door, can well monitor the position of weld, and upper and lower beam is taken over and all there is the arc surface transition junction of body, and is aesthetic in appearance.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, below the specific embodiment and in conjunction with the accompanying drawings of basis, the utility model is described in further detail, wherein
Fig. 1 is a generalized section of the present utility model.
The specific embodiment
See Fig. 1, the utlity model has body 1, the side tube wall of described body 1 is provided with upper beam connection pipe 2 and underbeam connection pipe 3, upper beam connection pipe 2 and underbeam connection pipe 3 are all by drawing high the hole flanging one-shot forming, upper beam connection pipe 2 has arc transition face 4 with body 1 junction, underbeam connection pipe 3 with body 1 junction, the tube wall of upper beam connection pipe 2 is provided with inspection door 21, and the tube wall of underbeam connection pipe 3 is provided with inspection door 31.
Claims (3)
1. cycle frame front connector has body (1); It is characterized in that: described body (1) one side is provided with upper beam connection pipe (2) and underbeam connection pipe (3), and upper beam connection pipe (2) and underbeam connection pipe (3) are integral piece with above-mentioned body (1).
2. cycle frame front connector according to claim 1, it is characterized in that: described upper beam connection pipe (2) and underbeam connection pipe (3) are all by drawing high the hole flanging one-shot forming, the tube wall of upper beam connection pipe (2) is provided with inspection door (21), and the tube wall of underbeam connection pipe (3) is provided with inspection door (31).
3. cycle frame front connector according to claim 2 is characterized in that: described upper beam connection pipe (2) has arc transition face (4) with body (1) junction, underbeam connection pipe (3) with body (1) junction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203074143U CN201494572U (en) | 2009-08-05 | 2009-08-05 | Bicycle frame front joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203074143U CN201494572U (en) | 2009-08-05 | 2009-08-05 | Bicycle frame front joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201494572U true CN201494572U (en) | 2010-06-02 |
Family
ID=42437780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203074143U Expired - Fee Related CN201494572U (en) | 2009-08-05 | 2009-08-05 | Bicycle frame front joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201494572U (en) |
-
2009
- 2009-08-05 CN CN2009203074143U patent/CN201494572U/en not_active Expired - Fee Related
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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: 20100602 Termination date: 20140805 |
|
| EXPY | Termination of patent right or utility model |