CN216468256U - High-strength lower tube of frame - Google Patents
High-strength lower tube of frame Download PDFInfo
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- CN216468256U CN216468256U CN202123195454.3U CN202123195454U CN216468256U CN 216468256 U CN216468256 U CN 216468256U CN 202123195454 U CN202123195454 U CN 202123195454U CN 216468256 U CN216468256 U CN 216468256U
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- connecting pipe
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- plate
- fixed box
- limiting
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- 238000003466 welding Methods 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 abstract description 11
- 238000009826 distribution Methods 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The application discloses high strength frame low tube belongs to frame technical field, including fixed case, first spacing hole has been seted up to the surface of fixed case, the spacing hole of second has been seted up to the surface of fixed case, the inner chamber of fixed case is fixed to run through has first connecting pipe, the welding of the inner chamber diapire of fixed case has the connecting plate, the fixed inner chamber of establishing at the connecting plate of inserting of first connecting pipe, the external fixed surface of connecting plate is connected with the second connecting pipe. This high strength frame low tube, through fixed case, first spacing hole, the cooperation of the spacing hole of second and connecting plate is used, promote first connecting pipe, the holistic stability of second connecting pipe and third connecting pipe, the cooperation of rethread fixed plate and connecting plate is used, promote the stability between second connecting pipe and the third connecting pipe, further through reset spring, the cooperation of protection pad and fixed case is used, the effect that receives the secondary damage after the first connecting pipe of minimize receives the striking.
Description
Technical Field
The application belongs to the technical field of the frame, especially, relate to a high strength frame low tube.
Background
The concept of low-carbon travel is well known by more and more people, the number of bicycles and electric vehicles on the street is more and more, and the bicycles and the electric vehicles become an indispensable vehicle in daily life of people. The down tube of the frame is one of the most important parts of the frame, and the quality of the down tube directly influences the service life of the bicycle or the electric bicycle.
In the process of implementing the application, the inventor finds that at least the following problems exist in the technology: the traditional frame lower pipe is formed by molding hollow pipes generally, the hollow frame lower pipe lightens the whole quality, but the hollow frame lower pipe is easy to cause secondary damage due to external force deflection, and the whole strength of the frame is reduced.
Therefore, we propose a high strength down tube to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides an aim at solve among the prior art, hollow frame low tube receives external force skew to cause the secondary to destroy easily, and the holistic intensity of frame is lower problem, and a high strength frame low tube that provides.
In order to achieve the purpose, the following technical scheme is adopted in the application:
the utility model provides a high strength frame low tube, includes fixed case, first spacing hole has been seted up to the surface of fixed case, the spacing hole of second has been seted up to the surface of fixed case, the fixed first connecting pipe that runs through of inner chamber of fixed case, the welding of the inner chamber diapire of fixed case has the connecting plate, the fixed inner chamber of establishing at the connecting plate of inserting of first connecting pipe, the outer fixed surface of connecting plate is connected with the second connecting pipe, the outer fixed surface of connecting plate is connected with the third connecting pipe, one side welding that the second connecting pipe is close to the third connecting pipe has the fixed plate, one side and the third connecting pipe welding of second connecting pipe are kept away from to the fixed plate, the inner chamber lateral wall welding of fixed case has reset spring, reset spring keeps away from the one end welding of fixed case and has the protection pad, one side of protection pad and the outer surface overlap joint of first connecting pipe.
Through setting up first spacing hole, the spacing hole of second, connecting plate, reset spring and protection pad, realized strengthening the overall stability of frame low tube, and reduced the effect of the impact force that produces after first connecting pipe receives the impact.
Preferably, the longitudinal section of the fixing plate is arc-shaped, the length of the fixing plate is smaller than that of the second connecting pipe, and the radian of the fixing plate is equal to that of the second connecting pipe and the third connecting pipe.
Through radian and the length that sets up the fixed plate, realized the effect of the stability between reinforcing second connecting pipe and the third connecting pipe.
Preferably, the second connecting pipe penetrates through one of the second limiting holes to be movably connected with the fixed box, the third connecting pipe penetrates through the other second limiting hole to be movably connected with the fixed box, and the second connecting pipe and the third connecting pipe are equal in length.
Through setting up the spacing hole of second, realized the effect of restriction second connecting pipe and third connecting pipe position.
Preferably, the protection pad is connected to the top wall of the inner cavity of the fixed box in a sliding mode, and the cross sectional area of the protection pad is smaller than that of the inner wall of the fixed box in the length direction.
Through the cross-sectional area that sets up the protection pad, the effect of frictional force when having realized reducing the protection pad and sliding.
Preferably, the wire guide has been seted up to the inner chamber of connecting plate, the inner chamber top fixed mounting of fixed case has the fixed block, be provided with the limiting plate between two fixed blocks, the inner chamber threaded connection of limiting plate has the threaded rod, threaded rod swing joint is at the top of fixed case.
Through setting up wire guide, fixed block, limiting plate and threaded rod, realized the position of fixed wire, avoid the effect of wire position disorder.
Preferably, the number of the wire guiding holes is two, and the two wire guiding holes are symmetrically distributed by taking the center line of the threaded rod as the center.
Through setting up the wire guide of two symmetries, realized avoiding the wire to disturb the effect that the limiting plate removed.
Preferably, the width of the limiting plate is smaller than the distance between the two fixing blocks, and the vertical sectional area of the limiting plate is smaller than the vertical sectional area of the fixing blocks.
Through the vertical sectional area who sets up the limiting plate, the effect of frictional force when having realized reducing the limiting plate and sliding.
Preferably, the radius of the second limiting hole is smaller than that of the first limiting hole, and the second limiting hole is located below the first limiting hole.
The effect of controlling the relative positions of the first connecting pipe, the second connecting pipe and the third connecting pipe is achieved by setting the radiuses of the second limiting hole and the first limiting hole.
To sum up, the technical effect and the advantage of this application: this high strength frame low tube, through fixed case, first spacing hole, the cooperation of the spacing hole of second and connecting plate is used, promote first connecting pipe, the holistic stability of second connecting pipe and third connecting pipe, the cooperation of rethread fixed plate and connecting plate is used, promote the stability between second connecting pipe and the third connecting pipe, further through reset spring, the cooperation of protection pad and fixed case is used, the effect that receives the secondary damage after the first connecting pipe of minimize receives the striking.
Drawings
FIG. 1 is a schematic structural diagram of the present application;
FIG. 2 is a schematic front cross-sectional view of the present application;
FIG. 3 is a schematic rear cross-sectional view of the present application;
fig. 4 is an enlarged schematic view of the area a in fig. 2 of the present application.
In the figure: 1. a fixed box; 2. a first limit hole; 3. a second limiting hole; 4. a first connecting pipe; 5. a connecting plate; 6. a second connecting pipe; 7. a third connecting pipe; 8. a fixing plate; 9. a return spring; 10. a protection pad; 11. a wire guide hole; 12. a fixed block; 13. a limiting plate; 14. a threaded rod.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.
Referring to fig. 1-3, a high-strength vehicle frame lower tube comprises a fixed box 1, wherein a first limiting hole 2 is formed in the outer surface of the fixed box 1, and a second limiting hole 3 is formed in the outer surface of the fixed box 1. The radius of the second limiting hole 3 is smaller than that of the first limiting hole 2, the number of the second limiting holes 3 is two, the two second limiting holes 3 are symmetrically distributed by taking the central line of the fixed box 1 as the center, and the second limiting holes 3 are located below the first limiting holes 2.
The inner chamber of fixed case 1 is fixed to run through and has been had first connecting pipe 4, and first connecting pipe 4 passes first spacing hole 2 and gets into the inside of fixed case 1, and the welding of the inner chamber diapire of fixed case 1 has connecting plate 5, and the vertical sectional area of connecting plate 5 equals the vertical sectional area of fixed case 1 length direction lateral wall, and first connecting pipe 4 is fixed to be inserted and to be established the inner chamber at connecting plate 5.
The outer fixed surface of connecting plate 5 is connected with second connecting pipe 6, and second connecting pipe 6 passes spacing hole 3 of one of them second and fixed case 1 swing joint, and the outer fixed surface of connecting plate 5 is connected with third connecting pipe 7, and the outward appearance and the material of second connecting pipe 6 and third connecting pipe 7 are all the same, and third connecting pipe 7 passes spacing hole 3 of another second and fixed case 1 swing joint.
One side welding that second connecting pipe 6 is close to third connecting pipe 7 has fixed plate 8, one side and the welding of third connecting pipe 7 that second connecting pipe 6 was kept away from to fixed plate 8, the longitudinal section of fixed plate 8 is arc, the radian of fixed plate 8 equals with the radian of second connecting pipe 6 and third connecting pipe 7, the length of fixed plate 8 is less than the length of second connecting pipe 6, second connecting pipe 6 and third connecting pipe 7 link to each other through fixed plate 8, and fixed plate 8 can promote the stability between the two of second connecting pipe 6 and third connecting pipe 7.
The inner chamber lateral wall welding of fixed case 1 has reset spring 9, and reset spring 9's quantity has two, and two reset spring 9 use the central line of fixed case 1 to be the symmetric distribution as the center, and the one end welding that reset spring 9 kept away from fixed case 1 has protection pad 10. Protection pad 10 sliding connection is at the inner chamber roof of fixed case 1, and one side that protection pad 10 is close to first connecting pipe 4 is convex, and the convex one side of protection pad 10 and the surface overlap joint of first connecting pipe 4, and the cross-sectional area of protection pad 10 is less than the cross-sectional area of fixed case 1 length direction inner wall.
Referring to fig. 1 and 4, wire guide 11 has been seted up to the inner chamber of connecting plate 5, the inner chamber threaded connection of limiting plate 13 has threaded rod 14, wire guide 11's quantity has two, two wire guide 11 use the central line of threaded rod 14 to be the symmetric distribution as the center, wire accessible wire guide 11 gets into the inside of fixed case 1, the inner chamber top fixed mounting of fixed case 1 has fixed block 12, the quantity of fixed block 12 has two, two fixed blocks 12 use the central line of fixed case 1 to be the symmetric distribution as the center.
A limiting plate 13 is arranged between the two fixed blocks 12, the width of the limiting plate 13 is smaller than the distance between the two fixed blocks 12, the vertical sectional area of the limiting plate 13 is smaller than that of the fixed blocks 12, and the limiting plate 13 with a relatively narrow area can reduce friction force during sliding. The threaded rod 14 is movably connected to the top of the fixed box 1, and when the threaded rod 14 is rotated, the limiting plate 13 is driven by the rotation of the threaded rod 14 to move upwards or downwards.
The working principle is as follows: when the whole equipment of frame low tube, pass first connecting pipe 4 earlier and insert connecting plate 5 of fixed case 1 inside through first spacing hole 2, insert the inside of connecting plate 5 through the spacing hole 3 of second of two symmetric distributions respectively with two curved second connecting pipe 6 and third connecting pipe 7 again, and strengthen stability between them through fixed plate 8 between second connecting pipe 6 and the third connecting pipe 7, when the frame low tube received the striking, first connecting pipe 4 atress takes place the skew, and the removal of first connecting pipe 4 can compress the protection pad 10 of corresponding one side, the removal of protection pad 10 can be to the reset spring 9 that the backward compression corresponds, avoid 4 atress skews of first connecting pipe to strike other parts as far as possible and produce the secondary damage.
And wire accessible wire guide 11 inserts the inside of fixed case 1, after inserting the wire, rotatory threaded rod 14, because threaded rod 14 is threaded connection with limiting plate 13, and limiting plate 13 slides from top to bottom along the inner chamber of fixed block 12, then the rotation of threaded rod 14 drives limiting plate 13 and upwards moves along fixed block 12, and then the space of wire is restricted, avoids complicated wire influence the work of fixed case 1 inside other parts as far as possible.
The above description is only for the preferred embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present application, and all equivalent substitutions and changes according to the technical solutions and the inventive concepts of the present application should be covered by the scope of the present application.
Claims (8)
1. A high-strength vehicle frame lower pipe comprises a fixed box (1) and is characterized in that a first limiting hole (2) is formed in the outer surface of the fixed box (1), a second limiting hole (3) is formed in the outer surface of the fixed box (1), a first connecting pipe (4) penetrates through the inner cavity of the fixed box (1), a connecting plate (5) is welded on the bottom wall of the inner cavity of the fixed box (1), the first connecting pipe (4) is fixedly inserted into the inner cavity of the connecting plate (5), a second connecting pipe (6) is fixedly connected on the outer surface of the connecting plate (5), a third connecting pipe (7) is fixedly connected on the outer surface of the connecting plate (5), a fixed plate (8) is welded on one side, close to the third connecting pipe (7), of the second connecting pipe (6) is welded on one side, far away from the second connecting pipe (6), of the fixed plate (8) and the third connecting pipe (7) is welded on one side, far away from the second connecting pipe (6), inner chamber lateral wall welded joint of fixed case (1) has reset spring (9), reset spring (9) keep away from the one end welding of fixed case (1) and have protection pad (10), the outer overlap joint of one side and first connecting pipe (4) of protection pad (10).
2. A high strength down tube according to claim 1, wherein the longitudinal section of the fixing plate (8) is circular arc, the length of the fixing plate (8) is less than the length of the second connecting tube (6), and the radian of the fixing plate (8) is equal to the radians of the second connecting tube (6) and the third connecting tube (7).
3. A high strength down tube according to claim 1, wherein the second connecting tube (6) passes through one of the second limiting holes (3) to be movably connected with the fixed box (1), the third connecting tube (7) passes through the other second limiting hole (3) to be movably connected with the fixed box (1), and the lengths of the second connecting tube (6) and the third connecting tube (7) are equal.
4. A high strength down tube according to claim 1, wherein the protection pad (10) is slidably connected to the top wall of the inner cavity of the fixed box (1), and the cross-sectional area of the protection pad (10) is smaller than the cross-sectional area of the inner wall of the fixed box (1) in the length direction.
5. The high-strength frame lower tube according to claim 1, wherein the inner cavity of the connecting plate (5) is provided with a wire guide hole (11), a fixed block (12) is fixedly mounted at the top of the inner cavity of the fixed box (1), a limiting plate (13) is arranged between the two fixed blocks (12), a threaded rod (14) is connected to the inner cavity of the limiting plate (13) in a threaded manner, and the threaded rod (14) is movably connected to the top of the fixed box (1).
6. A high strength down tube according to claim 5, wherein the number of said wire guides (11) is two, and two of said wire guides (11) are symmetrically arranged around the center line of the threaded rod (14).
7. A high-strength down tube according to claim 5, characterized in that the width of the limiting plate (13) is smaller than the distance between two fixing blocks (12), and the vertical cross-sectional area of the limiting plate (13) is smaller than that of the fixing blocks (12).
8. A high strength down tube according to claim 1, wherein the radius of the second limiting hole (3) is smaller than the radius of the first limiting hole (2), and the second limiting hole (3) is located below the first limiting hole (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123195454.3U CN216468256U (en) | 2021-12-17 | 2021-12-17 | High-strength lower tube of frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123195454.3U CN216468256U (en) | 2021-12-17 | 2021-12-17 | High-strength lower tube of frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216468256U true CN216468256U (en) | 2022-05-10 |
Family
ID=81426702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123195454.3U Expired - Fee Related CN216468256U (en) | 2021-12-17 | 2021-12-17 | High-strength lower tube of frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216468256U (en) |
-
2021
- 2021-12-17 CN CN202123195454.3U patent/CN216468256U/en not_active Expired - Fee Related
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| 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: 20220510 |