CN105329392A - Lower beam pipe of bicycle - Google Patents
Lower beam pipe of bicycle Download PDFInfo
- Publication number
- CN105329392A CN105329392A CN201510688182.0A CN201510688182A CN105329392A CN 105329392 A CN105329392 A CN 105329392A CN 201510688182 A CN201510688182 A CN 201510688182A CN 105329392 A CN105329392 A CN 105329392A
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- lower beam
- beam pipe
- pipe body
- bicycle
- arc surface
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Abstract
The invention provides a lower beam pipe of a bicycle, which belongs to the technical field of a bicycle component. The lower beam pipe comprises a lower beam pipe body of a hollow structure, wherein an inner pipe of a hollow structure is concentrically arranged inside the lower beam pipe body, a plurality of reinforcing ribs are uniformly arranged between the inner pipe and the lower beam pipe body, one end of each reinforcing rib is connected to the inner wall of the lower beam pipe body to form an arc surface I, the other end of each reinforcing rib is connected to the outer wall of the inner pipe to form an arc surface II, and the space between the inner pipe and the lower beam pipe body is divided by two adjacent reinforcing ribs into independent spaces. The lower beam pipe body is relatively thinner and high in strength, the breaking situation is unlikely to happen, the bicycle formed by the lower beam pipe is light in weight, relatively light and convenient and easy and comfortable for people to ride.
Description
Technical field
The present invention relates to bicycle part field, specifically a kind of lower beam pipe of bicycle.
Background technology
In recent years, due to the develop rapidly of national economy and economy, the practicality of bicycle, bicycle obtains very large popularizing, and people have not only experienced convenience with quick in the use procedure of bicycle, have also discovered some problems that bicycle exists.At present, section bar for the manufacture of bicycle is varied, the lower beam pipe of bicycle is as the bearing tube of bicycle, stricter to its requirement of strength, but the section bar of the lower beam pipe of most of bicycle is a hollow tubular, in order to strengthen the intensity of hollow tubular, certainly will to increase the wall thickness of hollow tubular or increasing the size of hollow tubular.Such Problems existing is, the quality of hollow tubular is larger, owing to being subject to the effect of different directions power, the easy situation occurring fracture, in order to avoid the generation of the problems referred to above, after increasing the wall thickness of hollow tubular and size, certainly will produced bicycle quality weight, heavier, people ride more painstaking.
Summary of the invention
The problem to be solved in the present invention is: overcome the deficiencies in the prior art, provides a kind of lower beam pipe of bicycle, and lower beam pipe body is thinner and intensity is large, be not easy the situation occurring fracture, produced bicycle quality is light, and more lightly, convenient, people ride light, comfortable.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of lower beam pipe of bicycle, comprise the lower beam pipe body of a hollow structure, the inner concentric of described lower beam pipe body arranges the interior pipe of a hollow structure, several reinforced ribs are evenly provided with between described interior pipe and lower beam pipe body, one end of each reinforced rib is connected with the inwall of lower beam pipe body and forms arc surface one, the other end is connected with the outer wall of interior pipe and forms arc surface two, and adjacent two reinforced ribs are separated into independently space by between interior pipe and lower beam pipe body.
Further, described reinforced rib is four.
Further, the external diameter of described lower beam pipe body is 48-52mm.
Further, the wall thickness of described lower beam pipe body is 2.0-2.4mm.
Further, the internal diameter of described interior pipe is 14-18mm.
Further, the external diameter of described interior pipe is 20-22mm.
Further, the radius of described arc surface one is 1.8-2.2mm.
Further, the radius of described arc surface two is 0.8-1.2mm.
Further, the material of described lower beam pipe body, interior pipe and reinforced rib is aluminum alloy.
The advantage that the present invention has and good effect are:
The lower beam pipe of bicycle of the present invention, lower beam pipe body is hollow structure, and inside is provided with the interior pipe of hollow structure, reinforced rib is provided with between interior pipe and lower beam pipe body, in order to increase the intensity of lower beam pipe without the need to increasing size and the wall thickness of lower beam pipe body, make whole lower beam pipe body thinner and intensity is large, be not easy the situation occurring fracture; Adopt the produced bicycle quality of lower beam pipe of the present invention light, more lightly, convenient, people ride light, comfortable.
Accompanying drawing explanation
Fig. 1 is the structural representation of the lower beam pipe of bicycle of the present invention.
In figure: 1, lower beam pipe body; 2, interior pipe; 3, reinforced rib; 4, arc surface one; 5, arc surface two.
Detailed description of the invention
As shown in Figure 1, a kind of lower beam pipe of bicycle, comprise the lower beam pipe body 1 of a hollow structure, the inner concentric of lower beam pipe body 1 arranges the interior pipe 2 of a hollow structure, four reinforced ribs 3 are evenly provided with between interior pipe 2 and lower beam pipe body 1, one end of each reinforced rib 3 is connected with the inwall of lower beam pipe body 1 and forms arc surface 1, the radius of arc surface 1 is 2mm, the other end is connected with the outer wall of interior pipe 2 and forms arc surface 25, the radius of arc surface two is 1mm, adjacent two reinforced ribs 3 are separated into independently space by between interior pipe 2 and lower beam pipe body 1, the external diameter of lower beam pipe body 1 is 50.8mm, the wall thickness of lower beam pipe body 1 is 2.2mm, the internal diameter of interior pipe 2 is 16mm, the external diameter of interior pipe is 20.4mm, lower beam pipe body 1, interior pipe 2 is aluminum alloy with the material of reinforced rib 3.
The lower beam pipe of bicycle of the present invention, lower beam pipe body is hollow structure, and inside is provided with the interior pipe of hollow structure, reinforced rib is provided with between interior pipe and lower beam pipe body, in order to increase the intensity of lower beam pipe without the need to increasing size and the wall thickness of lower beam pipe body, make whole lower beam pipe body thinner and intensity is large, be not easy the situation occurring fracture; Adopt the produced bicycle quality of lower beam pipe of the present invention light, more lightly, convenient, people ride light, comfortable.
Above embodiments of the invention have been described in detail, but described content being only preferred embodiments of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (9)
1. the lower beam pipe of a bicycle, comprise the lower beam pipe body of a hollow structure, it is characterized in that: the inner concentric of described lower beam pipe body arranges the interior pipe of a hollow structure, several reinforced ribs are evenly provided with between described interior pipe and lower beam pipe body, one end of each reinforced rib is connected with the inwall of lower beam pipe body and forms arc surface one, the other end is connected with the outer wall of interior pipe and forms arc surface two, and adjacent two reinforced ribs are separated into independently space by between interior pipe and lower beam pipe body.
2. the lower beam pipe of a kind of bicycle according to claim 1, is characterized in that: described reinforced rib is four.
3. the lower beam pipe of a kind of bicycle according to claim 1, is characterized in that: the external diameter of described lower beam pipe body is 48-52mm.
4. the lower beam pipe of a kind of bicycle according to claim 3, is characterized in that: the wall thickness of described lower beam pipe body is 2.0-2.4mm.
5. the lower beam pipe of a kind of bicycle according to claim 1, is characterized in that: the internal diameter of described interior pipe is 14-18mm.
6. the lower beam pipe of a kind of bicycle according to claim 5, is characterized in that: the external diameter of described interior pipe is 20-22mm.
7. the lower beam pipe of a kind of bicycle according to claim 1, is characterized in that: the radius of described arc surface one is 1.8-2.2mm.
8. the lower beam pipe of a kind of bicycle according to claim 1, is characterized in that: the radius of described arc surface two is 0.8-1.2mm.
9. the lower beam pipe of a kind of bicycle according to any one of claim 1-8, is characterized in that: the material of described lower beam pipe body, interior pipe and reinforced rib is aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510688182.0A CN105329392A (en) | 2015-10-22 | 2015-10-22 | Lower beam pipe of bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510688182.0A CN105329392A (en) | 2015-10-22 | 2015-10-22 | Lower beam pipe of bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105329392A true CN105329392A (en) | 2016-02-17 |
Family
ID=55280228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510688182.0A Pending CN105329392A (en) | 2015-10-22 | 2015-10-22 | Lower beam pipe of bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105329392A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105857485A (en) * | 2016-05-16 | 2016-08-17 | 广西永保竹木业发展有限公司 | Bicycle frame made of bamboo |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1978274A (en) * | 2005-12-09 | 2007-06-13 | 王子运动集团公司 | Bicycle having multiple tube frame structure. |
| EP2474464A1 (en) * | 2011-01-10 | 2012-07-11 | J.D Components Co., Ltd. | Method of manufacturing frame tube and structure of the frame tube made therefrom |
| CN202716996U (en) * | 2012-07-16 | 2013-02-06 | 蔡廷箴 | Pipe fitting for bicycle frame |
| CN205131522U (en) * | 2015-10-22 | 2016-04-06 | 天津市佳世通金属制品有限公司 | Underbeam pipe of bicycle |
-
2015
- 2015-10-22 CN CN201510688182.0A patent/CN105329392A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1978274A (en) * | 2005-12-09 | 2007-06-13 | 王子运动集团公司 | Bicycle having multiple tube frame structure. |
| EP2474464A1 (en) * | 2011-01-10 | 2012-07-11 | J.D Components Co., Ltd. | Method of manufacturing frame tube and structure of the frame tube made therefrom |
| CN202716996U (en) * | 2012-07-16 | 2013-02-06 | 蔡廷箴 | Pipe fitting for bicycle frame |
| CN205131522U (en) * | 2015-10-22 | 2016-04-06 | 天津市佳世通金属制品有限公司 | Underbeam pipe of bicycle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105857485A (en) * | 2016-05-16 | 2016-08-17 | 广西永保竹木业发展有限公司 | Bicycle frame made of bamboo |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160217 |
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| WD01 | Invention patent application deemed withdrawn after publication |