CN205131520U - Underbeam pipe of bicycle - Google Patents
Underbeam pipe of bicycle Download PDFInfo
- Publication number
- CN205131520U CN205131520U CN201520819843.4U CN201520819843U CN205131520U CN 205131520 U CN205131520 U CN 205131520U CN 201520819843 U CN201520819843 U CN 201520819843U CN 205131520 U CN205131520 U CN 205131520U
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- China
- Prior art keywords
- pipe
- face
- pipe face
- arc surface
- lower beam
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- Expired - Fee Related
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Abstract
The utility model provides an underbeam pipe of bicycle belongs to zero technical field of bicycle, underbeam pipe body including a hollow structure, the cross section of underbeam pipe body is bilateral symmetry's hexagon structure, underbeam pipe body includes top tube face and low tube face, be equipped with upper left pipe face between top tube face and the low tube face, left side low tube face, upper right pipe face and right low tube face, upper left pipe face and upper right tub of plane symmetry setting, left side low tube face and right low tube plane symmetry set up, be connected with a strengthening rib between left side low tube face and the right low tube face, the strengthening rib is managed the body with the underbeam and is separated into two independent spaces, the top tube face, upper left pipe face, left side low tube face, the low tube face, in right side low tube face and the upper right pipe face, the crossing department of two adjacent pipe faces is the arc surface. The utility model discloses the outward appearance is pleasing to the eye, and underbeam pipe body is relatively thinner and intensity is big, is difficult to appear cracked circumstances, and it is light, lighter and handier, convenient to make the bicycle quality of coming out, and people ride easily, comfortable, and application scope is wide.
Description
Technical field
The utility model 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
Problem to be solved in the utility model is: overcome the deficiencies in the prior art, a kind of lower beam pipe of bicycle is provided, specious, lower beam pipe body is thinner and intensity is large, be not easy the situation occurring fracture, produced bicycle quality is light, more lightly, convenient, people ride light, comfortable, applied widely.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of lower beam pipe of bicycle, comprise the lower beam pipe body of a hollow structure, the cross-sectional plane of described lower beam pipe body is symmetrical hexagonal structure, described lower beam pipe body comprises pipe face and lower pipe face, pipe face, upper left is provided with between described upper pipe face and lower pipe face, pipe face, lower-left, upper right pipe face and pipe face, bottom right, pipe face, described upper left and upper right pipe face are symmetrical arranged, pipe face, described lower-left and pipe face, bottom right are symmetrical arranged, a reinforced rib is connected with between pipe face, described lower-left and pipe face, bottom right, lower beam pipe body is separated into two separate space by described reinforced rib, described upper pipe face, pipe face, upper left, pipe face, lower-left, lower pipe face, in pipe face, bottom right and upper right pipe face, the intersection in adjacent two pipe faces is arc surface.
Further, described reinforced rib is arc-shaped structure, and the radius of described reinforced rib is 118-125mm.
Further, described upper pipe face and the intersection between pipe face, upper left and upper right pipe face are respectively arc surface one and arc surface two, the intersection in pipe face, described upper left and pipe face, lower-left is arc surface three, the intersection in described upper right pipe face and pipe face, bottom right is arc surface four, and the intersection in described lower pipe face and pipe face, lower-left and pipe face, bottom right is respectively arc surface five and arc surface six.
Further, the radius of described arc surface one, arc surface two, arc surface five and arc surface six is 4-6mm, and the radius of described arc surface three and arc surface four is 3-5mm.
Further, pipe face, described upper left and upper right pipe face are to the recessed arc surface of underbeam tube body tube core or facing directly of being obliquely installed.
Further, pipe face, described lower-left and pipe face, bottom right are arc surface recessed outside underbeam tube body pipe, and the radius in pipe face, described lower-left and pipe face, bottom right is 65-70mm.
Further, described lower pipe face is arc surface, and the radius in described lower pipe face is 55-62mm.
Further, the height a of described lower beam pipe body is 58-62mm, and the width b of described lower beam pipe body is 38-40mm.
Further, the thickness of described lower beam pipe body is 1.8-2.2mm.
Further, the material of described lower beam pipe body and reinforced rib is aluminum alloy.
The advantage that the utility model has and good effect are:
The lower beam pipe of the utility model bicycle, lower beam pipe body is hollow structure, and forms hexagonal structure by six faces, specious; Be provided with reinforced rib in lower beam pipe body interior, 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, being not easy the situation occurring fracture; Adopt the produced bicycle quality of lower beam pipe of the present utility model light, more lightly, convenient, people ride light, comfortable; Because intensity ratio of the present utility model is comparatively large, not only for the manufacture of the bicycle needed for asian population, and be applicable to American-European crowd, applied widely.
Accompanying drawing explanation
Fig. 1 is the structural representation of the lower beam pipe of the utility model bicycle.
In figure: 1, lower beam pipe body; 2, upper pipe face; 3, lower pipe face; 4, upper left pipe face; 5, lower-left pipe face; 6, upper right pipe face; 7, bottom right pipe face; 8, reinforced rib; 9, arc surface one; 10, arc surface two; 11, arc surface three; 12, arc surface four; 13, arc surface five; 14, arc surface six.
Detailed description of the invention
As shown in Figure 1, a kind of lower beam pipe of bicycle, comprises the lower beam pipe body 1 of a hollow structure, the height a of lower beam pipe body 1 is 60mm, the width b of lower beam pipe body 1 is 39mm, and the thickness of lower beam pipe body 1 is 1.8-2.2mm, and the cross-sectional plane of lower beam pipe body 1 is symmetrical hexagonal structure;
Lower beam pipe body 1 comprises pipe face 2 and lower pipe face 3, lower pipe face 3 is arc surface, the radius in lower pipe face 3 is 60mm, pipe face, upper left 4, pipe face, lower-left 5, upper right pipe face 6 and pipe face, bottom right 7 is provided with between upper pipe face 2 and lower pipe face 3, pipe face, upper left 4 and upper right pipe face 6 are symmetrical arranged, pipe face, upper left 4 and upper right pipe face 6 are to the recessed arc surface of underbeam tube body 1 tube core, pipe face, lower-left 5 and pipe face, bottom right 7 are symmetrical arranged, pipe face, lower-left 5 and pipe face, bottom right 7 are arc surface recessed outside underbeam tube body 1 pipe, and the radius in pipe face, lower-left 5 and pipe face, bottom right 7 is 66mm;
A reinforced rib 8 is connected with between pipe face, lower-left 5 and pipe face, bottom right 7, lower beam pipe body 1 is separated into two separate space by reinforced rib 8, reinforced rib 8 is arc-shaped structure, the radius of reinforced rib 8 is 120mm, upper pipe face 2, pipe face, upper left 4, pipe face, lower-left 5, lower pipe face 3, in pipe face, bottom right 7 and upper right pipe face 6, the intersection in adjacent two pipe faces is arc surface, upper pipe face 2 and the intersection between pipe face, upper left 4 and upper right pipe face 7 are respectively arc surface 1 and arc surface 2 10, the intersection in pipe face, upper left 4 and pipe face, lower-left 7 is arc surface 3 11, the intersection in upper right pipe face 6 and pipe face, bottom right 7 is arc surface 4 12, lower pipe face 3 is respectively arc surface 5 13 and arc surface 6 14 with the intersection in pipe face, lower-left 5 and pipe face, bottom right 7, arc surface 1, arc surface 2 10, the radius of arc surface 5 13 and arc surface 6 14 is 5mm, the radius of arc surface 3 11 and arc surface 4 12 is 3.86mm,
Lower beam pipe body 1 is aluminum alloy with the material of reinforced rib 8.
The lower beam pipe of the utility model bicycle, lower beam pipe body is hollow structure, and form hexagonal structure by six faces, specious, reinforced rib is provided with in lower beam pipe body interior, 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, making whole lower beam pipe body thinner and intensity is large, being not easy the situation occurring fracture; Adopt the produced bicycle quality of lower beam pipe of the present utility model light, more lightly, convenient, people ride light, comfortable; Because intensity ratio of the present utility model is comparatively large, not only for the manufacture of the bicycle needed for asian population, and be applicable to American-European crowd, applied widely.
Above embodiment of the present utility model has been described in detail, but described content being only preferred embodiments of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (10)
1. the lower beam pipe of a bicycle, comprise the lower beam pipe body of a hollow structure, it is characterized in that: the cross-sectional plane of described lower beam pipe body is symmetrical hexagonal structure, described lower beam pipe body comprises pipe face and lower pipe face, pipe face, upper left is provided with between described upper pipe face and lower pipe face, pipe face, lower-left, upper right pipe face and pipe face, bottom right, pipe face, described upper left and upper right pipe face are symmetrical arranged, pipe face, described lower-left and pipe face, bottom right are symmetrical arranged, a reinforced rib is connected with between pipe face, described lower-left and pipe face, bottom right, lower beam pipe body is separated into two separate space by described reinforced rib, described upper pipe face, pipe face, upper left, pipe face, lower-left, lower pipe face, in pipe face, bottom right and upper right pipe face, the intersection in adjacent two pipe faces is arc surface.
2. the lower beam pipe of a kind of bicycle according to claim 1, is characterized in that: described reinforced rib is arc-shaped structure, and the radius of described reinforced rib is 118-125mm.
3. the lower beam pipe of a kind of bicycle according to claim 1, it is characterized in that: the intersection in described upper pipe face and pipe face, upper left and upper right pipe face is respectively arc surface one and arc surface two, intersection between pipe face, described upper left and pipe face, lower-left is arc surface three, the intersection in described upper right pipe face and pipe face, bottom right is arc surface four, and the intersection in described lower pipe face and pipe face, lower-left and pipe face, bottom right is respectively arc surface five and arc surface six.
4. the lower beam pipe of a kind of bicycle according to claim 3, is characterized in that: the radius of described arc surface one, arc surface two, arc surface five and arc surface six is 4-6mm, and the radius of described arc surface three and arc surface four is 3-5mm.
5. the lower beam pipe of a kind of bicycle according to claim 3, is characterized in that: pipe face, described upper left and upper right pipe face are to the recessed arc surface of underbeam tube body tube core or facing directly of being obliquely installed.
6. the lower beam pipe of a kind of bicycle according to claim 1, is characterized in that: pipe face, described lower-left and pipe face, bottom right are arc surface recessed outside underbeam tube body pipe, and the radius in pipe face, described lower-left and pipe face, bottom right is 65-70mm.
7. the lower beam pipe of a kind of bicycle according to claim 1, is characterized in that: described lower pipe face is arc surface, and the radius in described lower pipe face is 55-62mm.
8. the lower beam pipe of a kind of bicycle according to claim 1, is characterized in that: the height a of described lower beam pipe body is 58-62mm, and the width b of described lower beam pipe body is 38-40mm.
9. the lower beam pipe of a kind of bicycle according to claim 1, is characterized in that: the thickness of described lower beam pipe body is 1.8-2.2mm.
10. 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 and reinforced rib is aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520819843.4U CN205131520U (en) | 2015-10-22 | 2015-10-22 | Underbeam pipe of bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520819843.4U CN205131520U (en) | 2015-10-22 | 2015-10-22 | Underbeam pipe of bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205131520U true CN205131520U (en) | 2016-04-06 |
Family
ID=55617337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520819843.4U Expired - Fee Related CN205131520U (en) | 2015-10-22 | 2015-10-22 | Underbeam pipe of bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205131520U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105253236A (en) * | 2015-10-22 | 2016-01-20 | 天津市佳世通金属制品有限公司 | Bicycle lower beam pipe |
-
2015
- 2015-10-22 CN CN201520819843.4U patent/CN205131520U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105253236A (en) * | 2015-10-22 | 2016-01-20 | 天津市佳世通金属制品有限公司 | Bicycle lower beam pipe |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20161022 |