CN214451585U - Integrated frame of bicycle - Google Patents
Integrated frame of bicycle Download PDFInfo
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- CN214451585U CN214451585U CN202023232263.5U CN202023232263U CN214451585U CN 214451585 U CN214451585 U CN 214451585U CN 202023232263 U CN202023232263 U CN 202023232263U CN 214451585 U CN214451585 U CN 214451585U
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Abstract
The utility model relates to a bicycle integrated frame, which comprises a head tube (1), a vertical tube (2), a flat tube (3), a first upper beam (4), a second upper beam (5), a lower beam (6), a vertical fork (7) and a flat fork (8), wherein the first upper beam (4) and the second upper beam (5) are plate-shaped, the lower beam (6) is hollow tube-shaped, the lower end surface of the lower beam is provided with an opening, the vertical tube (2) is arranged on the upper side surface of the first upper beam (4), the flat tube (3) is arranged on the lower end lower side surface of the lower beam (6), the upper end of the first upper beam (4) is connected with the upper end of the lower beam (6), the lower end of the first upper beam (4) is connected with the upper side surface of the vertical fork (7), the upper end of the second upper beam (5) is connected with the lower beam (6), the lower end of the second upper beam (5) is connected with the lower side surface of the vertical fork (7), the utility model has simple structure, high mechanical strength and novel service life, the use safety is high, the overall streamline shape, the appearance is attractive, the one-time die-casting molding is realized, and the production and processing efficiency is high.
Description
Technical Field
The utility model relates to a bicycle technical field, concretely relates to integrative frame of bicycle.
Background
The bicycle is a green vehicle and also a sports fitness device. Bicycles are in great demand at home and abroad. The existing universal bicycle frame comprises a head tube, an upper tube, a lower tube, a middle tube, a five-way joint, a vertical fork and a bottom fork, the single-processing integral welding process is adopted for production, the head tube, the upper tube, the lower tube, the middle tube, the five-way joint, the vertical fork and the bottom fork are subjected to single part processing, and the head tube, the upper tube, the lower tube, the middle tube, the five-way joint, the vertical fork and the bottom fork are welded together by the welding process to form the integral bicycle frame. The existing bicycle frame production process method generates a plurality of welded joints, the welded joints not only influence the overall aesthetic degree of the bicycle, but also have uneven structure of a heat affected zone of the welded joints and concentrated stress, the electric corrosion of welding seams becomes a failure source of the whole bicycle frame, the welded joints can be damaged in advance in subsequent quality test and use, the fatigue resistance and the damage resistance are low, the service life is short, and potential safety hazards are brought to riders. The whole frame of integrated into one piece can be accomplished to current carbon fiber bicycle frame, does not have welded joint, and light in weight intensity is good, but because of its production and processing technology is complicated, the productivity is little can not satisfy the volume production shipment demand to because carbon fiber material's structural characteristic, in the later stage use, once the surface fish tail will cause frame irreversible damage, the fracture of failing fast has very big potential safety hazard.
Disclosure of Invention
An object of the utility model is to solve the not enough of prior art existence, provide an integrative frame of bicycle, simple structure is novel, and mechanical strength is high, long service life, and the safety in utilization is high, and whole streamline shape, the outward appearance is pleasing to the eye, disposable die-casting shaping, and production machining efficiency is high.
The utility model adopts the technical proposal that: a bicycle integrated frame comprises a head pipe 1, a vertical pipe 2, a flat pipe 3, a first upper beam 4, a second upper beam 5, a lower beam 6, a vertical fork 7 and a flat fork 8, wherein the head pipe 1, the vertical pipe 2, the flat pipe 3, the first upper beam 4, the second upper beam 5, the lower beam 6, the vertical fork 7 and the flat fork 8 are connected in an integrated die-casting manner, the first upper beam 4 and the second upper beam 5 are plate-shaped, the lower beam 6 is hollow tube-shaped, the lower end surface of the lower beam is provided with an opening, the vertical pipe 2 is arranged on the upper side surface of the first upper beam 4, the flat pipe 3 is arranged on the lower end lower side surface of the lower beam 6, the upper end of the first upper beam 4 is connected with the upper end of the lower beam 6, the lower end of the first upper beam 4 is connected with the upper side surface of the vertical fork 7, the upper end of the second upper beam 5 is connected with the lower side surface of the vertical fork 7, the upper end of the lower beam 6 is connected with the head pipe 1, the front end of the flat fork 8 is connected with the lower end of the lower beam 6, the rear end of the vertical fork 7 is connected with the rear end of the bottom fork 8, a front triangular hollow frame 9 is formed among the first upper beam 4, the second upper beam 5 and the lower beam 6, and a rear triangular hollow frame 10 is formed among the second upper beam 5, the lower beam 6, the vertical fork 7 and the bottom fork 8.
The further improvement is that the flat pipe 3 is connected with the lower beam 6 through a connecting rib plate 31.
The further improvement is that the vertical fork 7 is V-shaped, the inner side of the front end of the vertical fork is provided with a connecting arc, the bottom fork 8 is V-shaped, and the inner side of the front end of the bottom fork is provided with a connecting arc.
The rear end of the vertical fork 7 is provided with a bending connection part 71, an angle A is formed between the bending connection parts, the value of the angle A is 110-160 degrees, and the rear end of the vertical fork 7 is connected with the rear end of the bottom fork 8 through the bending connection part 71.
The further improvement is that the materials of the head pipe 1, the vertical pipe 2, the flat pipe 3, the first upper beam 4, the second upper beam 5, the lower beam 6, the vertical fork 7 and the flat fork 8 are magnesium-manganese alloy or magnesium-aluminum alloy.
The further improvement is that reinforcing ribs are arranged in the front triangular hollow frame 9 and the rear triangular hollow frame 10.
Compared with the prior art, the utility model following beneficial effect has:
the first upper beam and the second upper beam are of plate-shaped structures, and the lower end surface of the lower beam is provided with an opening, namely a hollow tubular structure and a flat tube are arranged on the lower side surface structure of the lower end of the lower beam, so that the integral frame can be formed by one-time die casting, and the integral frame has high mechanical strength, attractive appearance and high production and processing efficiency;
the rear end of the vertical fork is connected with the rear end of the bottom fork through the bent connecting part, so that the bearing stress performance of the frame is enhanced, the overall stress of the frame is more balanced, the service life is long, and the safety in use is high.
Drawings
Figure 1 is a schematic structural diagram of the present invention,
FIG. 2 is a schematic view of the front axial three-dimensional structure of the present invention,
fig. 3 is the schematic diagram of the three-dimensional structure of the oblique axis of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.
As shown in fig. 1, 2 and 3, a bicycle integrated frame comprises a head pipe 1, a vertical pipe 2, a flat pipe 3, a first upper beam 4, a second upper beam 5, a lower beam 6, a vertical fork 7 and a flat fork 8, wherein the head pipe 1, the vertical pipe 2, the flat pipe 3, the first upper beam 4, the second upper beam 5, the lower beam 6, the vertical fork 7 and the flat fork 8 are integrally connected by die casting, the material of the head pipe is magnesium-manganese alloy or magnesium-aluminum alloy, the first upper beam 4 and the second upper beam 5 are plate-shaped, the lower beam 6 is hollow tube-shaped, the lower end surface of the lower beam is provided with an opening, the vertical pipe 2 is arranged on the upper side surface of the first upper beam 4, the flat pipe 3 is arranged on the lower end lower side surface of the lower beam 6, the flat pipe 3 is connected with the lower beam 6 through a connecting rib plate 31, the upper end of the first upper beam 4 is connected with the upper end of the lower beam 6, the lower end of the first upper beam 4 is connected with the upper side surface of the vertical fork 7, the upper end of the second upper beam 5 is connected with the lower beam 6, the lower end of the vertical fork 7 is connected with the lower beam 4, the upper end of the lower beam 6 is connected with the head pipe 1, the front end of the bottom fork 8 is connected with two side faces of the lower end of the lower beam 6, the rear end of the vertical fork 7 is connected with the rear end of the bottom fork 8, a front triangular hollow frame 9 is formed among the first upper beam 4, the second upper beam 5 and the lower beam 6, a rear triangular hollow frame 10 is formed among the second upper beam 5, the lower beam 6, the vertical fork 7 and the bottom fork 8, and reinforcing ribs are arranged in the front triangular hollow frame 9 and the rear triangular hollow frame 10.
In order to enhance the bearing and stress performance of the frame and enable the whole frame to be stressed more evenly, the vertical fork 7 is in a V shape, a connecting arc is arranged on the inner side of the front end of the vertical fork 7, the bottom fork 8 is in a V shape, a connecting arc is arranged on the inner side of the front end of the bottom fork 8, a bent connecting portion 71 is arranged at the rear end of the vertical fork 7, an angle A is formed between the bent connecting portion 71 and the bottom fork, the angle A is 110-160 degrees, and the rear end of the vertical fork 7 is connected with the rear end of the bottom fork 8 through the bent connecting portion 71.
This integrative frame, first upper beam 4 and second upper beam 5 are platelike, and underbeam 6 is hollow tube form, and its lower terminal surface is equipped with the opening, and flat tube 3 sets up the lower extreme downside at underbeam 6, and brand-new integrative die-casting shaping structural design carries out the lower extreme design of loosing core to underbeam 6, strengthens the connection structural design to riser 2, flat tube 3, and the whole die-casting of frame is loosed core the shaping, and mechanical strength is high, and the outward appearance is pleasing to the eye, and production and processing efficiency is high, and the yield is high.
Without being limited thereto, any changes or substitutions which are not thought of through creative efforts should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (6)
1. A bicycle integrated frame is characterized by comprising a head pipe (1), a vertical pipe (2), a flat pipe (3), a first upper beam (4), a second upper beam (5), a lower beam (6), a vertical fork (7) and a flat fork (8), wherein the head pipe (1), the vertical pipe (2), the flat pipe (3), the first upper beam (4), the second upper beam (5), the lower beam (6), the vertical fork (7) and the flat fork (8) are connected in an integrated die-casting manner, the first upper beam (4) and the second upper beam (5) are plate-shaped, the lower beam (6) is hollow and tubular, an opening is formed in the lower end face of the lower beam, the vertical pipe (2) is arranged on the upper side face of the first upper beam (4), the flat pipe (3) is arranged on the lower side face of the lower beam (6), the upper end of the first upper beam (4) is connected with the upper end of the lower beam (6), the lower end of the first upper beam (4) is connected with the upper side face of the vertical fork (7), the upper end of the second upper beam (5) is connected with the lower beam (6), the lower end of the second upper beam (5) is connected with the lower side face of the vertical fork (7), the upper end of the lower beam (6) is connected with the head pipe (1), the front end of the bottom fork (8) is connected with two side faces of the lower end of the lower beam (6), the rear end of the vertical fork (7) is connected with the rear end of the bottom fork (8), a front triangular hollow frame (9) is formed among the first upper beam (4), the second upper beam (5) and the lower beam (6), and a rear triangular hollow frame (10) is formed among the second upper beam (5), the lower beam (6), the vertical fork (7) and the bottom fork (8).
2. A bicycle frame as claimed in claim 1, characterised in that the flat tube (3) is connected to the lower beam (6) by means of a connecting web (31).
3. The bicycle integral frame as claimed in claim 1, wherein the seat stays (7) are shaped like a "V" and have connecting arcs on the inner sides of the front ends thereof, and the bottom stays (8) are shaped like a "V" and have connecting arcs on the inner sides of the front ends thereof.
4. A bicycle frame as claimed in claim 1, characterised in that the rear ends of the seat stays (7) are provided with bent connection portions (71) between which an angle a is formed, the angle a having a value of 110 ° to 160 °, and the rear ends of the seat stays (7) are connected to the rear ends of the bottom stays (8) through the bent connection portions (71).
5. The bicycle integral frame according to claim 1, characterized in that the head tube (1), the stand tube (2), the flat tube (3), the first upper beam (4), the second upper beam (5), the lower beam (6), the seat stays (7) and the seat stays (8) are made of magnesium-manganese alloy or magnesium-aluminum alloy.
6. The bicycle integral frame as claimed in claim 1, wherein reinforcing ribs are arranged in the front triangular hollow frame (9) and the rear triangular hollow frame (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023232263.5U CN214451585U (en) | 2020-12-25 | 2020-12-25 | Integrated frame of bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023232263.5U CN214451585U (en) | 2020-12-25 | 2020-12-25 | Integrated frame of bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214451585U true CN214451585U (en) | 2021-10-22 |
Family
ID=78108368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023232263.5U Active CN214451585U (en) | 2020-12-25 | 2020-12-25 | Integrated frame of bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214451585U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230034772A1 (en) * | 2021-07-21 | 2023-02-02 | Specialized Bicycle Components, Inc. | Bicycle frame with angled strut |
| US12122477B2 (en) * | 2021-07-21 | 2024-10-22 | Specialized Bicycle Components, Inc. | Bicycle frame with angled strut |
-
2020
- 2020-12-25 CN CN202023232263.5U patent/CN214451585U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230034772A1 (en) * | 2021-07-21 | 2023-02-02 | Specialized Bicycle Components, Inc. | Bicycle frame with angled strut |
| US12122477B2 (en) * | 2021-07-21 | 2024-10-22 | Specialized Bicycle Components, Inc. | Bicycle frame with angled strut |
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