CN214267860U - Stable reinforced motorcycle bottom fork - Google Patents
Stable reinforced motorcycle bottom fork Download PDFInfo
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- CN214267860U CN214267860U CN202120098876.XU CN202120098876U CN214267860U CN 214267860 U CN214267860 U CN 214267860U CN 202120098876 U CN202120098876 U CN 202120098876U CN 214267860 U CN214267860 U CN 214267860U
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- bottom fork
- chain stay
- tube
- fork
- pipe
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Abstract
The utility model relates to a stabilize strenghthened type motorcycle chain stay, violently pipe before the chain stay central siphon of chain stay side tube front end and the chain stay between the connection chain stay side tube front portion including two chain stay side tubes, welded fastening, violently pipe is the sinuous form before the chain stay, the front end upper portion of two chain stay side tubes is laminated respectively at the both ends that the chain stay was violently managed, still be connected with the chain stay rear cross tube between the chain stay side tube rear portion, violently pipe is the sinuous form behind the chain stay, the rear end upper portion of two chain stay side tubes is laminated respectively at the both ends of violently pipe behind the chain stay, the middle part reciprocal anchorage and relative chain stay side tube of violently managing behind the middle part of violently pipe before the chain stay are the hunch form. The two ends of the bottom fork front transverse pipe are respectively attached and fixed to the upper parts of the front ends of the two bottom fork side pipes, the two ends of the bottom fork rear transverse pipe are respectively attached and fixed to the upper parts of the rear ends of the two bottom fork side pipes, meanwhile, the middle of the bottom fork front transverse pipe is fixedly connected with the middle of the bottom fork rear transverse pipe, the two bottom fork side pipes serve as motorcycle rear wheel supporting parts, and the bottom fork front transverse pipe and the bottom fork rear transverse pipe bridge form an integrated stable structure on the two bottom fork side pipes.
Description
Technical Field
The utility model relates to a motorcycle support component especially relates to a stabilize strenghthened type motorcycle chain stay
Background
The motorcycle bottom fork is a supporting component arranged at the back of a frame and is an important component of the motorcycle. The rear wheel is mounted on the bottom fork, and the frame is connected with the rear wheel through the bottom fork, so that the support of the rear wheel is transmitted through the bottom fork. The bicycle is stable and unstable when being opened, whether the rear wheel is eccentric or not and the flat fork also plays an important role.
The motorcycle bottom fork mainly comprises bottom fork side pipes positioned on two sides, a bottom fork shaft pipe welded between the two bottom fork side pipes and a bottom fork transverse pipe, wherein the bottom fork shaft pipe is the front end of the two bottom fork side pipes, the bottom fork transverse pipe is positioned between the front parts of the two bottom fork side pipes, a bearing for supporting the bottom fork shaft is arranged in the bottom fork shaft pipe, and the front end of the motorcycle bottom fork is connected with a frame through the bottom fork shaft penetrating through the bottom fork shaft pipe.
In the process of driving the motorcycle, the load borne by the bottom fork is very large, the stress condition is also very complex, the load borne by the bottom fork in the driving process is not constant, and the stress of the bottom fork can also change along with the change of the driving speed and the driving state of the motorcycle, so that the bottom fork is used as an important supporting component of the motorcycle, and a side pipe of the bottom fork is easy to deform.
Therefore, the motorcycle bottom fork needs to consider the use stability and the deformation resistance in the design and manufacture process.
Disclosure of Invention
The utility model provides a stable strenghthened type motorcycle chain stay that stability is high, and have higher resistance to deformation ability.
The utility model discloses a concrete technical scheme does: the utility model provides a stabilize strenghthened type motorcycle chain stay, including two chain stay side pipes, the chain stay central siphon of welded fastening at chain stay side pipe front end and connect the chain stay front cross tube between the chain stay side pipe front portion, the chain stay front cross tube is the bending form, the front end upper portion of two chain stay side pipes is laminated respectively to the both ends of chain stay front cross tube, still be connected with chain stay rear cross tube between the chain stay side pipe rear portion, the chain stay rear cross tube is the bending form, the rear end upper portion of two chain stay side pipes is laminated respectively to the both ends of chain stay rear cross tube, the middle part of chain stay front cross tube and the middle part of chain stay rear cross tube are fixed each other and are the hunch-up form relatively the chain stay side pipe.
The two ends of the bottom fork front transverse pipe are respectively attached and fixed with the upper parts of the front ends of the two bottom fork side pipes, the two ends of the bottom fork rear transverse pipe are respectively attached and fixed with the upper parts of the rear ends of the two bottom fork side pipes, meanwhile, the middle part of the bottom fork front transverse pipe is fixedly connected with the middle part of the bottom fork rear transverse pipe, the two bottom fork side pipes are used as motorcycle rear wheel supporting parts, and the bottom fork front transverse pipe and a bottom fork rear transverse pipe bridge frame form an integrated stable structure on the two bottom fork side pipes; the middle part of the horizontal tube before the bottom fork and the middle part of the horizontal tube after the bottom fork are fixed are arched relative to the side tube of the bottom fork, so that the horizontal tube is more suitable for bearing the acting force of a suspension spring, and can absorb shock by generating bending deformation and reduce the bending deformation of the side tube of the bottom fork.
Preferably, the bottom fork side tube is bent, the bent part is positioned at the position, which is far from the front, of the middle part of the bottom fork side tube, and the distance between the front parts of the two bottom fork side tubes of the bottom fork is smaller than the distance between the rear parts of the two bottom fork side tubes.
Further preferably, the two bottom fork side tubes are in the same plane, and the axis of the bottom fork shaft tube is parallel to the plane.
Preferably, the bottom fork front transverse tube is U-shaped, the bottom fork rear transverse tube is U-shaped, and the width of the U-shaped opening of the bottom fork front transverse tube is smaller than that of the U-shaped opening of the bottom fork rear transverse tube. Violently pipe and the bending of horizontal pipe behind the bottom fork before the bottom fork are both ends and two bottom fork side tube laminating after the U-shaped fixed, just also be horizontal pipe and the horizontal pipe behind the bottom fork before the bottom fork both ends and the both ends of bottom fork side tube be the parallel and level form, the axis at axis laminating position is parallel to each other behind the laminating, violently pipe, the horizontal pipe and the bottom fork side tube have great contact site behind the bottom fork before the bottom fork to divide the effort that the bottom fork side tube received, improve the anti bending capability of bottom fork side tube.
Preferably, the middle part of the bottom fork front transverse tube is in a plane shape towards the side edge of the bottom fork rear transverse tube, and the side edge of the bottom fork rear transverse tube towards the bottom fork front transverse tube is in a plane shape.
Preferably, the bottom fork side tube, the bottom fork front transverse tube and the bottom fork rear transverse tube are all round tubes, the bottom fork front transverse tube and the bottom fork side tube are overlapped and are subjected to filling welding on two sides of the overlapped part, and the bottom fork rear transverse tube and the bottom fork side tube are overlapped and are subjected to filling welding on two sides of the overlapped part.
Preferably, the connecting part of the front horizontal tube and the rear horizontal tube of the bottom fork is lifted off the plane of the side tubes of the two bottom forks.
Preferably, the bottom fork side tube is fixed with a support plate, and the support plate is respectively fixed with the bottom fork front transverse tube and the bottom fork rear transverse tube and supports the bottom fork front transverse tube and the bottom fork rear transverse tube. The supporting plate is arranged between the part of the bottom fork front transverse pipe and the bottom fork rear transverse pipe, which is arched relative to the bottom fork side pipe, and the arched parts of the bottom fork front transverse pipe and the bottom fork rear transverse pipe are supported through the supporting plate, so that the supporting stability of the bottom fork is improved.
Further preferably, the support plate is provided with a lightening hole in the middle.
The utility model has the advantages that: the two ends of the bottom fork front transverse pipe are respectively attached and fixed with the upper parts of the front ends of the two bottom fork side pipes, the two ends of the bottom fork rear transverse pipe are respectively attached and fixed with the upper parts of the rear ends of the two bottom fork side pipes, meanwhile, the middle part of the bottom fork front transverse pipe is fixedly connected with the middle part of the bottom fork rear transverse pipe, the two bottom fork side pipes are used as motorcycle rear wheel supporting parts, and the bottom fork front transverse pipe and a bottom fork rear transverse pipe bridge frame form an integrated stable structure on the two bottom fork side pipes; the middle part of the horizontal tube before the bottom fork and the middle part of the horizontal tube after the bottom fork are fixed are arched relative to the side tube of the bottom fork, so that the horizontal tube is more suitable for bearing the acting force of a suspension spring, and can absorb shock by generating bending deformation and reduce the bending deformation of the side tube of the bottom fork.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a side view of the present invention;
fig. 3 is a cross-sectional view of the present invention;
in the figure: 1. bottom fork central siphon, 2, horizontal pipe before the bottom fork, 3, horizontal fork side tube, 4, backup pad, 5, horizontal pipe behind the bottom fork, 6, connecting plate, 7, lightening hole, 8, spread groove.
Detailed Description
The invention will be further described with reference to specific embodiments and with reference to the accompanying drawings.
Example (b):
as shown in fig. 1, 2 and 3, the stable reinforced motorcycle bottom fork comprises two bottom fork side tubes 3, a bottom fork shaft tube 1 welded and fixed at the front ends of the bottom fork side tubes and a bottom fork front transverse tube 2 connected between the front portions of the bottom fork side tubes, wherein the bottom fork front transverse tube is bent, two ends of the bottom fork front transverse tube are respectively attached to the upper portions of the front ends of the two bottom fork side tubes, a bottom fork rear transverse tube 5 is further connected between the rear portions of the bottom fork side tubes and is bent, two ends of the bottom fork rear transverse tube are respectively attached to the upper portions of the rear ends of the two bottom fork side tubes, and the middle portions of the bottom fork front transverse tube and the bottom fork rear transverse tube are mutually fixed and are arched relative to the bottom fork side tubes.
The bottom fork shaft tubes are divided into two branches, and the two bottom fork shaft tubes are coaxial and are respectively fixed at the front ends of the bottom fork side tubes. The bottom fork side tube is bent, the bent part is positioned at the front part of the middle part of the bottom fork side tube, and the distance between the front parts of the two bottom fork side tubes of the bottom fork is smaller than the distance between the rear parts of the two bottom fork side tubes. The bottom fork front transverse tube is U-shaped, the bottom fork rear transverse tube is U-shaped, and the width of the U-shaped opening of the bottom fork front transverse tube is smaller than that of the U-shaped opening of the bottom fork rear transverse tube. The middle part of the bottom fork front transverse pipe is in a plane shape towards the side edge of the bottom fork rear transverse pipe, and the side edge of the bottom fork rear transverse pipe towards the bottom fork front transverse pipe is in a plane shape. The bottom fork side tube, the bottom fork front transverse tube and the bottom fork rear transverse tube are all round tubes, the bottom fork front transverse tube and the bottom fork side tube are overlapped and are subjected to filling welding on two sides of the overlapped part, and the bottom fork rear transverse tube and the bottom fork side tube are overlapped and are subjected to filling welding on two sides of the overlapped part.
The two bottom fork side tubes are positioned on the same plane, and the axis of the bottom fork shaft tube is parallel to the plane. The bottom fork side tube is fixedly attached to the bottom fork front transverse tube, and the position between the bottom fork side tube and the bottom fork front transverse tube and the axis of the bottom fork shaft tube are in the same plane.
The connecting part of the front horizontal tube and the rear horizontal tube of the bottom fork is lifted away from the plane of the side tubes of the two bottom forks. The flat fork side tube is fixed with a supporting plate 4 which is respectively fixed with the flat fork front transverse tube and the flat fork rear transverse tube and supports the flat fork front transverse tube and the flat fork rear transverse tube. The middle part of the supporting plate is provided with lightening holes 7 which enable the peripheral width of the supporting plate to be equal.
The end part of the flatcar side pipe is parallel and level with the rear end of the bottom fork rear transverse pipe, an L-shaped connecting plate 6 is fixedly welded at the position of the parallel and level end part, and an open connecting groove 8 is formed in the connecting plate.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and equivalent transformation of doing above embodiment the utility model discloses technical scheme's protection scope.
Claims (9)
1. The utility model provides a stabilize strenghthened type motorcycle chain stay, its characterized in that, including two chain stay side tube (3), welded fastening is in chain stay central siphon (1) of chain stay side tube front end and horizontal pipe (2) before the chain stay between the connection chain stay side tube front portion, the horizontal pipe is the bending form before the chain stay, the both ends of horizontal pipe are laminated the front end upper portion of two chain stay side tube respectively before the chain stay, still be connected with horizontal pipe (5) behind the chain stay between the chain stay side tube rear portion, horizontal pipe is the bending form behind the chain stay, the both ends of horizontal pipe are laminated the rear end upper portion of two chain stay side tube respectively behind the chain stay, the middle part of horizontal pipe is fixed each other and is the hunch-up form relative to the middle part of horizontal pipe behind the chain stay front and the chain stay.
2. The stable reinforced motorcycle bottom fork as recited in claim 1, wherein the bottom fork side tube is curved, the curved portion is located at a position forward of the middle portion of the bottom fork side tube, and the distance between the front portions of the two bottom fork side tubes of the bottom fork is smaller than the distance between the rear portions of the two bottom fork side tubes.
3. The stable reinforced motorcycle bottom fork of claim 2, wherein the two bottom fork side tubes are in the same plane and the axis of the bottom fork shaft tube is parallel to the plane.
4. The stable reinforced motorcycle bottom fork as claimed in claim 1, 2 or 3, wherein the bottom fork front cross tube is U-shaped, the bottom fork rear cross tube is U-shaped, and the width of the U-shaped opening of the bottom fork front cross tube is smaller than that of the U-shaped opening of the bottom fork rear cross tube.
5. The stable reinforced motorcycle bottom fork as recited in claim 4, wherein the middle portion of the bottom fork front cross tube is planar toward the side of the bottom fork rear cross tube, and the side of the bottom fork rear cross tube toward the bottom fork front cross tube is planar.
6. The stably reinforced motorcycle bottom fork as claimed in claim 1, 2 or 3, wherein the bottom fork side tube, the bottom fork front cross tube and the bottom fork rear cross tube are all round tubes, the bottom fork front cross tube and the bottom fork side tube are overlapped and are caulked at both sides of the overlapped portion, and the bottom fork rear cross tube and the bottom fork side tube are overlapped and are caulked at both sides of the overlapped portion.
7. The stable reinforced motorcycle bottom fork as claimed in claim 1, 2 or 3, wherein the connecting part of the front horizontal tube and the rear horizontal tube of the bottom fork is lifted off the plane of the side tubes of the two bottom forks.
8. The stable reinforced motorcycle bottom fork as claimed in claim 7, wherein the bottom fork side tube is fixed with a support plate (4) which is respectively fixed with and supports the bottom fork front cross tube and the bottom fork rear cross tube.
9. The steadily reinforced motorcycle fork of claim 8, wherein the support plate is provided with lightening holes (7) in the middle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120098876.XU CN214267860U (en) | 2021-01-14 | 2021-01-14 | Stable reinforced motorcycle bottom fork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120098876.XU CN214267860U (en) | 2021-01-14 | 2021-01-14 | Stable reinforced motorcycle bottom fork |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214267860U true CN214267860U (en) | 2021-09-24 |
Family
ID=77792143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120098876.XU Active CN214267860U (en) | 2021-01-14 | 2021-01-14 | Stable reinforced motorcycle bottom fork |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214267860U (en) |
-
2021
- 2021-01-14 CN CN202120098876.XU patent/CN214267860U/en active Active
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