CN211032890U - Frame front main beam and connection structure - Google Patents
Frame front main beam and connection structure Download PDFInfo
- Publication number
- CN211032890U CN211032890U CN201920173486.7U CN201920173486U CN211032890U CN 211032890 U CN211032890 U CN 211032890U CN 201920173486 U CN201920173486 U CN 201920173486U CN 211032890 U CN211032890 U CN 211032890U
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- girder
- main beam
- notch
- bending
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Abstract
The utility model relates to a girder before frame, girder upper end upwards sets up and its cross-section is the polygon to one side, the girder lower extreme sets up and its cross-section is the polygon to one side downwards, and contained angle between girder upper end and the girder lower extreme is greater than the girder upper end for obtuse angle and girder lower extreme appearance, and the end has a incision that is used for connecting under the girder. The utility model discloses in, the preferred hexagon in girder self cross-section makes the girder whole more solid durable, and the appearance is elegant appearance moreover, and simultaneously, the board of bending, girder and saddle sleeve pipe have formed the main support section of frame, and the power of load is dispersed to the board of bending, girder and saddle sleeve pipe on, compares with prior art, and the area of contact of each part junction is great, and the atress is more dispersed, has formed more firm, safer connection structure.
Description
Technical Field
The utility model belongs to the technical field of the frame construction improves, especially a frame front girder and connection structure.
Background
In various tools of riding instead of walk such as bicycle, electric motor car, vehicle using motor, the frame is the most important part, and it not only plays the effect of supporting load, still is a whole with other part organic connection, and the structure of frame is: the rear bottom fork comprises a front fork sleeve, a main beam and a saddle sleeve, wherein the front end of the main beam is provided with the front fork sleeve, the rear end of the main beam is connected with the saddle sleeve and the rear bottom fork, a middle shaft sleeve is further arranged at the position, a front wheel is arranged at the lower end of the front fork arranged in the front fork sleeve, a rear wheel is arranged at the rear end of the rear bottom fork, and an oblique beam is connected between the rear bottom fork and the saddle sleeve for improving the stability of support. In the frame with the structure, the front main beam is generally in a shape similar to a circle such as a circle or an oblate and is single in shape, the contact area of the front end part and the connection part of the front fork sleeve is small, and the main beam, the saddle sleeve, the middle shaft sleeve and the rear bottom fork are connected together, so that the structure of the connection part is too complex, operations such as multiple welding, grinding and the like are needed, the working efficiency is reduced, the contact area among the parts is small due to the connection of the parts, and the main beam has the defects that the main beam is single in pipe shape and the contact area between the front end part and the rear end part is small.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the not enough of prior art, provide girder cross sectional shape scientific and reasonable, preceding tip and preceding fork sleeve joint area of contact big, back tip shape are suitable for a frame front girder of connecting other parts.
The utility model adopts the technical proposal that:
the utility model provides a main beam before frame, includes the girder, its characterized in that: the girder upper end sets up and its cross-section is the polygon to one side, the girder lower extreme sets up and its cross-section is the polygon to one side, and the contained angle between girder upper end and the girder lower extreme is the obtuse angle and girder lower extreme appearance is greater than the girder upper end, and the girder lower extreme has a incision that is used for connecting other parts.
The polygon has 4 to 8 sides.
Moreover, the polygon has 6 sides.
Moreover, the polygon is a hexagon, the upper ends of two sides above the hexagon are connected through an arc-shaped section, and the lower ends of two sides below the hexagon are connected through an arc-shaped section.
Moreover, each side of the hexagon is a straight side or an arc side.
And the notch front side is bent to be inclined downwards, the notch rear side is bent to be inclined upwards, and the notch front side and the notch rear side are integrally connected through an inclined upwards middle side.
Another object of the utility model is to provide a connection structure of girder, its characterized in that: the folding main beam comprises the main beam, wherein a notch at the lower end part of the main beam is connected with a folding plate, and the folding plate is used for connecting a saddle sleeve, a rear bottom fork and a middle shaft assembly.
And the rear side of the notch is connected with the front side surface of the saddle sleeve, the middle edge of the notch is connected with the upper end surface of the bending plate, and the front side of the notch is connected with the bending front side of the bending plate.
And the lower end part of the saddle sleeve is connected with the rear side of the upper end face of the bent edge, the rear bottom fork is connected with the bent rear side of the bent edge, and the middle shaft assembly is connected with the side edge of the bent plate through the mounting piece arranged at the upper end of the middle shaft assembly.
And the section of the upper end of the saddle sleeve is circular, the section of the lower end of the saddle sleeve is quadrilateral, and the rear side surface of the upper end of the saddle sleeve is provided with an installation groove.
The utility model has the advantages that:
in the utility model, the girder is polygonal, preferably hexagonal, and the upper end and the lower end are connected through the arc section, a firmer shape is formed in the vertical direction of the girder, the complexity of the shape is also increased in the horizontal direction, the whole girder is firmer and more durable, and the appearance is more elegant, meanwhile, the cross-sectional shapes of the upper end and the lower end of the girder are the same, the included angle of the connection between the upper end and the lower end of the girder is obtuse angle, the lower end of the girder is provided with a notch, because the external shape of the lower end of the girder is bigger, the front side of the notch is connected with the bending front side of the bending plate, the middle side of the notch is connected with the upper end face of the bending plate, the rear side of the notch is connected with the front side surface of the saddle sleeve arranged on the rear side of the upper end face of the bending plate, thus, the lower end of the girder is connected with the large, the power of load is dispersed to bend on board, girder and the saddle sleeve pipe, compares with prior art, and the area of contact of each part junction is great, and the atress is more dispersed, has formed more firm, safer connection structure.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an enlarged cross-sectional view of the main beam of FIG. 1;
FIG. 3 is an enlarged cross-sectional view of the lower end of the saddle sleeve of FIG. 1.
Detailed Description
The present invention is further illustrated by the following examples, which are intended to be illustrative, not limiting and are not intended to limit the scope of the invention.
A frame front girder comprises a girder 8, and is characterized in that the upper end 9 of the girder is obliquely upwards arranged and the cross section of the girder is polygonal, the lower end 11 of the girder is obliquely downwards arranged and the cross section of the girder is polygonal, an included angle β between the upper end of the girder and the lower end of the girder is an obtuse angle, the appearance of the lower end of the girder is larger than that of the upper end of the girder, and the lower end of the girder is provided with a notch for connecting other components.
In this embodiment, the polygon has 4 to 8 sides, and a more preferable scheme is as follows: the polygon shown in fig. 2 has 6 sides, and the upper ends of the two sides 22 above the hexagon are connected by an arc segment 21, and the lower ends 24 of the two sides below the hexagon are connected by an arc segment. Each side 22, 23, 24 of the hexagon is a straight or curved side, preferably a curved side with a slightly outwardly convex middle as shown in fig. 2.
The notch front side 12 is bent and inclined downwards, the notch rear side 6 is bent and inclined upwards, and the notch front side and the notch rear side are integrally connected through an inclined upwards middle edge 7.
The connection of the main beam to other components is described in detail below with the structure of fig. 1:
the notch of girder lower tip connects a board 15 of bending, and this board of bending is used for connecting saddle sleeve pipe 3, back chain stay 19 and well axle subassembly 14, specifically is: the front side surface of the saddle sleeve pipe is connected to the rear side of the notch, the upper end surface of the bending plate is connected to the middle edge of the notch, the bending front side 13 of the bending plate is connected to the front side of the notch, the lower end portion 5 of the saddle sleeve pipe is connected to the rear side of the upper end surface of the bending plate, the rear bottom fork is connected to the bending rear side 18 of the bending plate, and the middle shaft assembly is connected to the side edge 16 of the bending plate through the mounting piece 17 arranged at the upper end.
In order to further increase the overall strength of the frame, the section of the upper end 4 of the saddle sleeve is circular, the section of the lower end of the saddle sleeve is quadrilateral as shown in figure 3, and the rear side surface of the upper end of the saddle sleeve is provided with an installation groove 2. The upper end of the circular saddle is used for embedding the vertical pipe arranged at the lower end of the saddle, the vertical pipe is fixed through bolts or screws arranged in the mounting grooves, each side 26 and 27 in the quadrangle at the lower end are arc sides with slightly outwards protruding middle parts, the four corners of the arc sides which are mutually connected are all made into arc connecting sections 25, the quadrangle is arranged to increase the contact area of the connection part with the lower end of the main beam and the connection part with the rear side of the upper end face of the bending plate, and the connection part is more stable and firmer.
The upper end of the main beam is connected with a front fork sleeve 10, an oblique beam 1 is arranged between the rear side surface of the upper end of the saddle sleeve and the rear bottom fork, and a rear wheel mounting plate 20 is arranged between the lower end of the oblique beam and the rear end of the rear bottom fork.
The frame shown in fig. 1 can be used in a common bicycle, wherein a middle shaft and a sleeve are arranged in the middle shaft assembly, the middle shaft penetrates through the sleeve, and two extending side end parts of the middle shaft are respectively provided with a pedal. More preferred embodiments are: the frame shown in fig. 1 is used in a moped, namely, a motor, a middle shaft, a sleeve and a sensor are arranged in a middle shaft assembly, the middle shaft penetrates through the sleeve, the middle shaft can be driven by pedals arranged at two ends of the middle shaft or by the motor, and the sensor can use a speed sensor or a torque sensor.
In the utility model, the girder is polygonal, preferably hexagonal, and the upper end and the lower end are connected through the arc section, a firmer shape is formed in the vertical direction of the girder, the complexity of the shape is also increased in the horizontal direction, the whole girder is firmer and more durable, and the appearance is more elegant, meanwhile, the cross-sectional shapes of the upper end and the lower end of the girder are the same, the included angle of the connection between the upper end and the lower end of the girder is obtuse angle, the lower end of the girder is provided with a notch, because the external shape of the lower end of the girder is bigger, the front side of the notch is connected with the bending front side of the bending plate, the middle side of the notch is connected with the upper end face of the bending plate, the rear side of the notch is connected with the front side surface of the saddle sleeve arranged on the rear side of the upper end face of the bending plate, thus, the lower end of the girder is connected with the large, the power of load is dispersed to bend on board, girder and the saddle sleeve pipe, compares with prior art, and the area of contact of each part junction is great, and the atress is more dispersed, has formed more firm, safer connection structure.
Claims (10)
1. The utility model provides a main beam before frame, includes the girder, its characterized in that: the girder upper end sets up and its cross-section is the polygon to one side, the girder lower extreme sets up and its cross-section is the polygon to one side, and the contained angle between girder upper end and the girder lower extreme is the obtuse angle and girder lower extreme appearance is greater than the girder upper end, and the end has a incision that is used for connecting under the girder.
2. The front main beam of a frame according to claim 1, characterized in that: the polygon has 4-8 sides.
3. The front main beam of a frame according to claim 1, characterized in that: the polygon has 6 sides.
4. The front main beam of a frame according to claim 1, characterized in that: the polygon is a hexagon, the upper ends of two edges above the hexagon are connected through an arc-shaped section, and the lower ends of two edges below the hexagon are connected through an arc-shaped section.
5. The front main beam of a frame according to claim 4, characterized in that: each side of the hexagon is a straight side or an arc side.
6. The front main beam of the frame according to any one of claims 1 to 5, characterized in that: the notch front side is bent to be inclined downwards, the notch rear side is bent to be inclined upwards, and the notch front side and the notch rear side are integrally connected through an inclined upward middle edge.
7. The utility model provides a connection structure of girder which characterized in that: the main beam of claim 6, wherein a bent plate is connected to the cut of the lower end of the main beam and is used for connecting the saddle sleeve, the rear bottom fork and the middle shaft assembly.
8. The connection structure of a main beam according to claim 7, wherein: the rear side of the notch is connected with the front side surface of the saddle sleeve, the middle edge of the notch is connected with the upper end surface of the bending plate, and the front side of the notch is connected with the bending front side of the bending plate.
9. The connection structure of a main beam according to claim 7 or 8, wherein: the lower end part of the saddle sleeve is connected with the rear side of the upper end face of the bending edge, the rear bottom fork is connected with the bending rear side of the bending edge, and the middle shaft assembly is connected with the side edge of the bending plate through the mounting piece arranged at the upper end of the middle shaft assembly.
10. The connection structure of a main beam according to claim 9, wherein: the cross section of the upper end of the saddle sleeve is circular, the cross section of the lower end of the saddle sleeve is quadrilateral, and the rear side surface of the upper end of the saddle sleeve is provided with an installation groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920173486.7U CN211032890U (en) | 2019-01-31 | 2019-01-31 | Frame front main beam and connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920173486.7U CN211032890U (en) | 2019-01-31 | 2019-01-31 | Frame front main beam and connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211032890U true CN211032890U (en) | 2020-07-17 |
Family
ID=71563670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920173486.7U Expired - Fee Related CN211032890U (en) | 2019-01-31 | 2019-01-31 | Frame front main beam and connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211032890U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113335438A (en) * | 2021-07-27 | 2021-09-03 | 江苏爱玛车业科技有限公司 | Crossbeam and electric vehicle frame |
-
2019
- 2019-01-31 CN CN201920173486.7U patent/CN211032890U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113335438A (en) * | 2021-07-27 | 2021-09-03 | 江苏爱玛车业科技有限公司 | Crossbeam and electric vehicle frame |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200717 Termination date: 20220131 |