CN203172812U - Metal bicycle frame - Google Patents
Metal bicycle frame Download PDFInfo
- Publication number
- CN203172812U CN203172812U CN 201220696018 CN201220696018U CN203172812U CN 203172812 U CN203172812 U CN 203172812U CN 201220696018 CN201220696018 CN 201220696018 CN 201220696018 U CN201220696018 U CN 201220696018U CN 203172812 U CN203172812 U CN 203172812U
- Authority
- CN
- China
- Prior art keywords
- crossbeam
- back vent
- pipe
- vehicle carriage
- communicates
- 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
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- Body Structure For Vehicles (AREA)
Abstract
The utility model discloses a metal bicycle frame which comprises a head tube, a middle tube, a transverse beam and rear branches. The head tube is connected with the front end of the transverse beam, the rear branches are formed by the rear end of the transverse beam, the rear end of the transverse beam is forwards cut to branch off till the middle of the transverse beam, and the middle tube is clamped between the two rear branches in a welded mode. The metal bicycle frame is high in strength, attractive in appearance and low in cost.
Description
Technical field
The utility model relates to cycle frame.
Background technology
Existing metal auto vehicle carriage comprises head pipe, middle pipe, crossbeam and back vent, pipe is welded on the front end of crossbeam, middle pipe is welded on the rear end of crossbeam, back vent is welded on the middle pipe, though the vehicle frame cost of this structure is lower, but because crossbeam and middle pipe are independent two sections, and all be to be connected by welding on the middle pipe, like this, the junction of the junction of crossbeam and middle pipe and back vent and middle pipe forms the phenomenon that stress is concentrated easily, and crossbeam and back vent need to bear bigger power, therefore, the phenomenon of fracture takes place in the junction easily, has caused the intensity of vehicle frame low; And the weld seam at middle pipe place can influence the outward appearance of vehicle frame.
For this reason, integrated carbon fiber bicycle frame has appearred in the back, but the material cost of this vehicle frame and manufacturing cost height very.
Summary of the invention
The purpose of this utility model provide a kind of metal auto vehicle carriage, metal auto vehicle carriage intensity height of the present utility model, appearance looks elegant, and cost is low.
For achieving the above object, a kind of metal auto vehicle carriage comprises head pipe, middle pipe, crossbeam and back vent, and a pipe is connected the front end of crossbeam; Cut apart the middle part of diverging to crossbeam forward by the rear end of crossbeam and form described back vent, described middle tube grip is welded between two back vents.
Said structure, because back vent is to be cut apart to diverge to by crossbeam to form, and middle pipe is to be clamped between two back vents, like this, back vent and crossbeam are structure as a whole, not only can form stress at middle pipe place and concentrate, guaranteed the intensity of vehicle frame, and plug-in attractive in appearance, and the cost of metal frame is low.
As improvement, be provided with in the place ahead that crossbeam is arranged in pipe and diverge to mouth, be provided with reinforced sheet with the crossbeam welding diverging to mouth.After reinforced sheet is set, can prevent crossbeam rear end continuation cracking on the one hand, the outward appearance U.S. that can improve vehicle frame on the other hand.
As improvement, the rear that is arranged in pipe between two back vents is provided with reinforced rib.After reinforced rib is set, can prevents two back vents cracking on the one hand or fold distortion, the outward appearance U.S. that can improve vehicle frame on the other hand.
As improvement, be provided with the folder that can make folding crossbeam at the middle part of crossbeam.Arranging behind the folder then can folding stand, is easy to carry.
As improvement, be provided with the brake cable incoming line that communicates with crossbeam inside at the front end of crossbeam, be provided with the brake cable line outlet that communicates with back vent inside at back vent.By brake cable incoming line and brake cable line outlet are set, then brake cable can be passed in crossbeam, prevents that brake cable from exposing, thereby improves the aesthetics of bicycle.
As improvement, be provided with the shift cable incoming line that communicates with crossbeam inside at the front end of crossbeam, be provided with the shift cable line outlet that communicates with back vent inside at back vent.By shift cable incoming line and shift cable line outlet are set, then shift cable can be passed in crossbeam, prevents that shift cable from exposing, thereby improves the aesthetics of bicycle.
Description of drawings
Fig. 1 the utility model metal auto vehicle carriage block diagram.
Fig. 2 is the utility model metal auto vehicle carriage front view.
Fig. 3 is the utility model metal auto vehicle carriage birds-eye view.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further elaborated.
As shown in Figure 1 to Figure 3, a kind of metal auto vehicle carriage comprises head pipe 1, middle pipe 2, crossbeam 9 and back vent 4.Head pipe 1 is welded on the front end of crossbeam 9.Cut apart to the middle part of crossbeam forward to diverge to by the rear end of crossbeam and form described back vent 4, middle pipe 2 is held and is welded between two back vents, the place ahead that is positioned at two back vents on the crossbeam forms naturally diverges to mouth 6, be provided with reinforced sheet (not shown) with the crossbeam welding diverging to mouthful 6 places, can prevent crossbeam rear end continuation cracking, and the outward appearance U.S. that can improve vehicle frame.The rear that is arranged in pipe between two back vents is formed with opening 7, and 7 places are welded with the reinforced rib (not shown) at opening, can prevent two back vents cracking or fold distortion, and can improve outward appearance U.S. of vehicle frame.In the present embodiment, back vent 4 is to be cut apart to diverge to by crossbeam to form, and middle pipe 2 is to be clamped between two back vents, like this, back vent and crossbeam are structure as a whole, not only can form stress at middle pipe place and concentrate, guaranteed the intensity of vehicle frame, and plug-in attractive in appearance, and the cost of metal frame is low.
In addition, be provided with the brake cable incoming line that communicates with crossbeam inside at the front end of crossbeam 9, be provided with the brake cable line outlet that communicates with back vent inside at back vent, like this, brake cable can be passed in crossbeam, prevents that brake cable from exposing, thereby improves the aesthetics of bicycle.Front end at crossbeam 9 is provided with the shift cable incoming line that communicates with crossbeam inside, is provided with the shift cable line outlet that communicates with back vent inside at back vent, and like this, shift cable can be passed in crossbeam, prevents that shift cable from exposing, thereby improves the aesthetics of bicycle.
Claims (6)
1. a metal auto vehicle carriage comprises head pipe, middle pipe, crossbeam and back vent, and a pipe is connected the front end of crossbeam; It is characterized in that: cut apart the middle part of diverging to crossbeam forward by the rear end of crossbeam and form described back vent, described middle tube grip is welded between two back vents.
2. metal auto vehicle carriage according to claim 1 is characterized in that: be provided with in the place ahead that crossbeam is arranged in pipe and diverge to mouth, be provided with reinforced sheet with the crossbeam welding diverging to mouth.
3. metal auto vehicle carriage according to claim 1, it is characterized in that: the rear that is arranged in pipe between two back vents is provided with reinforced rib.
4. metal auto vehicle carriage according to claim 1 is characterized in that: be provided with the folder that can make folding crossbeam at the middle part of crossbeam.
5. metal auto vehicle carriage according to claim 1, it is characterized in that: the front end at crossbeam is provided with the brake cable incoming line that communicates with crossbeam inside, is provided with the brake cable line outlet that communicates with back vent inside at back vent.
6. metal auto vehicle carriage according to claim 1 or 5, it is characterized in that: the front end at crossbeam is provided with the shift cable incoming line that communicates with crossbeam inside, is provided with the shift cable line outlet that communicates with back vent inside at back vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220696018 CN203172812U (en) | 2012-12-17 | 2012-12-17 | Metal bicycle frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220696018 CN203172812U (en) | 2012-12-17 | 2012-12-17 | Metal bicycle frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203172812U true CN203172812U (en) | 2013-09-04 |
Family
ID=49069554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220696018 Expired - Fee Related CN203172812U (en) | 2012-12-17 | 2012-12-17 | Metal bicycle frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203172812U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106741418A (en) * | 2016-11-16 | 2017-05-31 | 何响明 | With the bicycle for being integrally formed body frame structure for automotive |
-
2012
- 2012-12-17 CN CN 201220696018 patent/CN203172812U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106741418A (en) * | 2016-11-16 | 2017-05-31 | 何响明 | With the bicycle for being integrally formed body frame structure for automotive |
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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: 20130904 Termination date: 20151217 |
|
| EXPY | Termination of patent right or utility model |