CN205131517U - Underbeam pipe of bicycle - Google Patents
Underbeam pipe of bicycle Download PDFInfo
- Publication number
- CN205131517U CN205131517U CN201520820585.1U CN201520820585U CN205131517U CN 205131517 U CN205131517 U CN 205131517U CN 201520820585 U CN201520820585 U CN 201520820585U CN 205131517 U CN205131517 U CN 205131517U
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- China
- Prior art keywords
- pipe
- face
- lower beam
- reinforced rib
- pipe face
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Abstract
The utility model provides an underbeam pipe of bicycle belongs to zero technical field of bicycle, including a hollow structure's underbeam pipe body and left branch pipe and the right branch pipe that is located underbeam pipe body one end, the left branch pipe sets up with right branch pipe bilateral symmetry, underbeam pipe body includes top tube face and low tube face, be equipped with left side pipe face and right side pipe face between top tube face and the low tube face, the inside parallel of underbeam pipe body is equipped with left strengthening rib and right strengthening rib, the one end of left side strengthening rib and right strengthening rib is connected with the top tube face is perpendicular, the other end and the low tube facial features of left side strengthening rib and right strengthening rib link, left side strengthening rib is managed the body with right strengthening rib with the underbeam and is cut apart into left cavity, middle cavity and right cavity, left branch pipe and left cavity intercommunication, right branch pipe and right cavity intercommunication. The utility model discloses a body shaping does not need welding processes, avoids the appearance of the welding seam fracture circumstances, simple structure, and the equipment is convenient, and it is light, durable to make the bicycle that comes out, practices thrift manufacturing cost.
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, need, by the section bar weld together of lower beam pipe, to obtain the lower beam pipe of required form when manufacturing the lower beam pipe of bicycle.Such Problems existing is, pass through the hollow tubular of welding owing to being subject to the effect of different directions power, easily there is the situation of welding seam breaking, in order to avoid the generation of the problems referred to above, need the lower beam pipe developing a kind of bicycle, this lower beam pipe is one-body molded, do not need welding sequence, structure is simple, easy to assembly, produced bicycle is light, durable, saves production cost.
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, this lower beam pipe is one-body molded, do not need welding sequence, avoid the appearance of welding seam breaking situation, structure is simple, easy to assembly, produced bicycle is light, durable, saves production cost.
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 and be positioned at the left arm of lower beam pipe body one end and right arm, described left arm and right arm are symmetrical set, described lower beam pipe body comprises pipe face and lower pipe face, left pipe face and right pipe face is provided with between described upper pipe face and lower pipe face, described lower beam pipe body interior is parallel is provided with left reinforced rib and right reinforced rib, described left reinforced rib is connected with upper pipe face is vertical with one end of right reinforced rib, described left reinforced rib is connected with lower pipe face with the other end of right reinforced rib, lower beam pipe body is divided into left cavity by described left reinforced rib and right reinforced rib, middle chamber and right cavity, described left arm is communicated with left cavity, described right arm is communicated with right cavity.
Further, described upper pipe face is horizontal surface structure, and described lower pipe face is arc-shaped structure.
Further, described left pipe face and right pipe face are the planar structure be obliquely installed, and the one end in described left pipe face is connected with upper pipe face, and the other end and the lower pipe face in described left pipe face are tangent, the one end in described right pipe face is connected with upper pipe face, and the other end and the lower pipe face in described right pipe face are tangent.
Further, described left pipe face is connected with left reinforced rib, and forms arc surface one, and described right pipe face is connected with right reinforced rib, and forms arc surface two.
Further, the wall thickness of described lower beam pipe body is 1.6-2.0mm.
Further, the wall thickness of described left reinforced rib and right reinforced rib is 1.6-2.0mm.
Further, the radius in described lower pipe face is 20-25mm.
Further, the distance between described left reinforced rib and right reinforced rib is 7-9mm.
Further, the height a of described lower beam pipe body is 53-56mm, and the width b of described lower beam pipe body is 44-46mm.
Further, the material of described lower beam pipe body and left reinforced rib and right 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 lower beam pipe body and left arm and right arm one-body molded, do not need welding sequence, avoid the appearance of welding seam breaking situation, structure is simple, easy to assembly, produced bicycle is light, durable, saves production cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the lower beam pipe of the utility model bicycle.
Fig. 2 is the cutaway view of the lower beam pipe of the utility model bicycle.
In figure: 1, lower beam pipe body; 2, left arm; 3, right arm; 4, upper pipe face; 5, lower pipe face; 6, left pipe face; 7, right pipe face; 8, left reinforced rib; 9, right reinforced rib; 10, left cavity; 11, middle chamber; 12, right cavity; 13, arc surface one; 14, 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 and be positioned at left arm 2 and the right arm 3 of lower beam pipe body 1 one end, left arm 2 is symmetrical set with right arm 3, the wall thickness of lower beam pipe body 1 is 1.8mm, the height a of lower beam pipe body 1 is 55mm, and the width b of lower beam pipe body 1 is 45mm;
Lower beam pipe body 1 comprises pipe face 4 and lower pipe face 5, upper pipe face 4 is horizontal surface structure, lower pipe face 5 is arc-shaped structure, the radius in lower pipe face 5 is 22.5mm, is provided with left pipe face 6 and right pipe face 7 between upper pipe face 4 and lower pipe face 5, left pipe face 6 and right pipe face 7 planar structure for being obliquely installed, the one end in left pipe face 6 is connected with upper pipe face 4, the other end and the lower pipe face 5 in left pipe face 6 are tangent, and the one end in right pipe face 7 is connected with upper pipe face 4, and the other end and the lower pipe face 5 in right pipe face 7 are tangent;
Lower beam pipe body 1 interior parallel is provided with left reinforced rib 8 and right reinforced rib 9, the wall thickness of left reinforced rib 8 and right reinforced rib 9 is 1.8mm, distance between left reinforced rib 8 and right reinforced rib 9 is 7.8mm, left reinforced rib 8 is connected with upper pipe face 4 is vertical with one end of right reinforced rib 9, left reinforced rib 8 is connected with lower pipe face 5 with the other end of right reinforced rib 9, left pipe face 6 is connected with left reinforced rib 8, and form arc surface 1, right pipe face 7 is connected with right reinforced rib 9, and form arc surface 2 14, lower beam pipe body 1 is divided into left cavity 10 by left reinforced rib 8 and right reinforced rib 9, middle chamber 11 and right cavity 12, left arm 2 is communicated with left cavity 10, right arm 3 is communicated with right cavity 12.
Lower beam pipe body 1 is aluminum alloy with the material of left reinforced rib 8 and right reinforced rib 9.
The lower beam pipe of the utility model bicycle, lower beam pipe body is hollow structure, and lower beam pipe body and left arm and right arm one-body molded, do not need welding sequence, avoid the appearance of welding seam breaking situation, structure is simple, easy to assembly, produced bicycle is light, durable, saves production cost.
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, it is characterized in that: comprise the lower beam pipe body of a hollow structure and be positioned at the left arm of lower beam pipe body one end and right arm, described left arm and right arm are symmetrical set, described lower beam pipe body comprises pipe face and lower pipe face, left pipe face and right pipe face is provided with between described upper pipe face and lower pipe face, described lower beam pipe body interior is parallel is provided with left reinforced rib and right reinforced rib, described left reinforced rib is connected with upper pipe face is vertical with one end of right reinforced rib, described left reinforced rib is connected with lower pipe face with the other end of right reinforced rib, lower beam pipe body is divided into left cavity by described left reinforced rib and right reinforced rib, middle chamber and right cavity, described left arm is communicated with left cavity, described right arm is communicated with right cavity.
2. the lower beam pipe of a kind of bicycle according to claim 1, is characterized in that: described upper pipe face is horizontal surface structure, and described lower pipe face is arc-shaped structure.
3. the lower beam pipe of a kind of bicycle according to claim 2, it is characterized in that: described left pipe face and right pipe face are the planar structure be obliquely installed, the one end in described left pipe face is connected with upper pipe face, the other end and the lower pipe face in described left pipe face are tangent, the one end in described right pipe face is connected with upper pipe face, and the other end and the lower pipe face in described right pipe face are tangent.
4. the lower beam pipe of a kind of bicycle according to claim 1, is characterized in that: described left pipe face is connected with left reinforced rib, and forms arc surface one, and described right pipe face is connected with right reinforced rib, and forms arc surface two.
5. the lower beam pipe of a kind of bicycle according to claim 1, is characterized in that: the wall thickness of described lower beam pipe body is 1.6-2.0mm.
6. the lower beam pipe of a kind of bicycle according to claim 1, is characterized in that: the wall thickness of described left reinforced rib and right reinforced rib is 1.6-2.0mm.
7. the lower beam pipe of a kind of bicycle according to claim 1, is characterized in that: the radius in described lower pipe face is 20-25mm.
8. the lower beam pipe of a kind of bicycle according to claim 1, is characterized in that: the distance between described left reinforced rib and right reinforced rib is 7-9mm.
9. 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 53-56mm, and the width b of described lower beam pipe body is 44-46mm.
10. the lower beam pipe of a kind of bicycle according to any one of claim 1-9, is characterized in that: the material of described lower beam pipe body and left reinforced rib and right reinforced rib is aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520820585.1U CN205131517U (en) | 2015-10-22 | 2015-10-22 | Underbeam pipe of bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520820585.1U CN205131517U (en) | 2015-10-22 | 2015-10-22 | Underbeam pipe of bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205131517U true CN205131517U (en) | 2016-04-06 |
Family
ID=55617334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520820585.1U Expired - Fee Related CN205131517U (en) | 2015-10-22 | 2015-10-22 | Underbeam pipe of bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205131517U (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 |
-
2015
- 2015-10-22 CN CN201520820585.1U patent/CN205131517U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20161022 |