CN214296294U - Low wind resistance bicycle frame - Google Patents

Abstract

The utility model discloses a low wind resistance bicycle frame, which comprises an upper pipe, a middle pipe, a lower pipe, a five-way pipe, a head pipe and a rear fork, wherein the upper pipe, the middle pipe and the lower pipe are connected end to form a triangular frame; the rear fork comprises a rear upper fork and a rear lower fork, one end of the rear lower fork is connected with the rear upper fork, the other end of the rear lower fork is connected with the five-way pipe, and the other end of the rear upper fork is connected with the middle pipe; the front end of the head pipe is integrally provided with an oval wind breaking head with the width gradually reduced from two sides to the middle; the front end of the cross section of the middle pipe is arc-shaped, and the rear end of the cross section of the middle pipe is triangular; the cross section of the rear fork is rectangular, and the length direction of the rectangle is parallel to the plane of the triangular frame; and the low wind resistance bicycle frame is formed by integral forming and processing. The utility model discloses a low windage bicycle frame can reduce the installation part, simplifies the outward appearance, promotes whole smoothness degree, effectively reduces the windage, reduces the consumption of riding.

Description

Low wind resistance bicycle frame

Technical Field

The utility model belongs to the technical field of the bicycle frame, especially, relate to a low windage bicycle frame.

Background

With the improvement of social economic level and living level, competitive sports are rapidly developed, wherein bicycle competition becomes one of choices of a plurality of sports enthusiasts and professional sporters. For bicycle competition, besides being related to physical quality and riding skill of athletes, whether the design of the bicycle can effectively reduce riding resistance or not is an important factor, especially in the field of field vehicle competition with the necessity of minutes and seconds. Therefore, minimizing the riding resistance becomes a constantly sought goal when designing and manufacturing competitive bicycle frames by many manufacturers.

The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model aims at providing a low windage bicycle frame can reduce the installation part, simplifies the outward appearance, promotes overall structure's smoothness degree, reduces the windage, reduces the consumption of riding, and the practicality is strong.

In order to achieve the purpose, the utility model provides a low wind resistance bicycle frame, which is characterized in that the bicycle frame comprises an upper pipe, a middle pipe, a lower pipe, a five-way pipe, a head pipe and a rear fork, wherein the upper pipe, the middle pipe and the lower pipe are connected end to form a triangular frame; the rear fork comprises an upper rear fork and a lower rear fork, one end of the lower rear fork is connected with the upper rear fork, the other end of the lower rear fork is connected with the five-way pipe, and the other end of the upper rear fork is connected with the middle pipe; the front end of the head pipe is integrally provided with an oval wind breaking head with the width gradually reduced from two sides to the middle; the front end of the cross section of the middle pipe is arc-shaped, and the rear end of the cross section of the middle pipe is triangular; the cross section of the rear fork is rectangular, and the length direction of the rectangle is parallel to the plane of the triangular frame; and the low wind resistance bicycle frame is integrally formed and processed.

In one example, a convex rib is arranged in the middle of one side of the rear fork, which is close to the rear fork, and the convex rib extends along the length direction of the rear fork.

In one example, the low wind resistance bicycle frame further comprises a protective shell, the protective shell is arranged on the periphery of the five-way pipe in a covering mode, and a cavity is arranged inside the protective shell.

In one example, the bottom of the protective shell is convex, and the protective shell has an expanding shape with a downward cross section gradually increasing.

In one example, the lower pipe is communicated with the inside of the under back fork, first threading holes communicated with the inside of the lower pipe are arranged at two ends of the lower pipe, and second threading holes communicated with the inside of the under back fork are arranged at one end, away from the five-way pipe, of the under back fork.

In one example, the low wind resistance bicycle frame is made of a carbon fiber material.

Through the utility model provides a low windage bicycle frame can bring following beneficial effect:

1. the wind resistance can be reduced by arranging the wind breaking head, the middle pipe with a special section shape and the rear fork with a flat structure; through setting up integrated into one piece's low windage bicycle frame, can reduce the installation part, simplify the outward appearance, promote overall structure's smoothness degree, further reduce the windage, reduce the consumption of riding, the practicality is strong.

2. Through setting up protruding muscle, can strengthen the bending strength of back fork, avoid the back fork atress to buckle, improve life, guarantee driving safety, the practicality is strong.

3. Through setting up the protective housing, can simplify the outward appearance, reinforcing surface smoothness reduces the windage, reduces the consumption of riding, can also protect to install in the inside mechanical structure of five-way pipe, increase of service life, the practicality is strong.

4. Through the bottom surface that sets up the convex surface form and the molding of downward expansion formula, can reduce the interference to the air current under the five-way pipe 4, can also increase the speed that the bottom air current passes through, reduce the atmospheric pressure of protective housing bottom, ground fertility and stability are grabbed in the reinforcing, the reinforcing effect of riding, and the practicality is strong.

5. Through setting up first through wires hole and second through wires hole, can simplify outward appearance structure in low windage bicycle frame inside wiring, reduce the windage, reduce the fault rate, and can reduce to ride and take advantage of the personnel and touch and be colluded the danger of stumbling, guarantee driving safety, the practicality is strong.

6. Through adopting carbon fiber material, can guarantee to improve the intensity of low windage bicycle frame even, guarantee driving safety, can also reduce whole weight, reinforcing result of use promotes to ride and experiences, and the practicality is strong.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a schematic structural view of a low wind resistance bicycle frame of the present invention;

fig. 2 is a top view of the rear upper fork of the present invention;

fig. 3 is a bottom view of the rear bottom fork of the present invention;

fig. 4 is a schematic structural view of the head pipe of the present invention;

fig. 5 is a schematic cross-sectional view of a middle tube according to the present invention;

fig. 6 is a schematic cross-sectional view of the rear fork of the present invention.

Detailed Description

In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. In the description herein, references to the description of the terms "an aspect," "some aspects," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the aspect or example is included in at least one aspect or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same solution or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more aspects or examples.

As shown in fig. 1 to 6, an embodiment of the present invention provides a low wind resistance bicycle frame 100, which includes an upper tube 1, a middle tube 2, a lower tube 3, a bottom tube 4, a head tube 5 and a rear fork 6, wherein the upper tube 1, the middle tube 2 and the lower tube 3 are connected end to form a triangular frame, the middle tube 2 is connected with the bottom tube 3 at one end of the bottom tube 4, and the upper tube 1 is connected with the bottom tube 3 at one end of the bottom tube 5; the rear fork 6 comprises a rear upper fork 61 and a rear lower fork 62, one end of the rear lower fork 62 is connected with the rear upper fork 61, the other end of the rear lower fork 62 is connected with the five-way pipe 4, and the other end of the rear upper fork 61 is connected with the middle pipe 2; the front end of the head pipe 5 is integrally provided with an oval wind breaking head 51 with the width gradually reduced from two sides to the middle; the front end of the cross section of the middle pipe 2 is arc-shaped, and the rear end is triangular; the cross section of the rear fork 6 is rectangular, and the length direction of the rectangle is parallel to the plane of the triangular frame; and the low wind resistance bicycle frame 100 is integrally formed. The wind resistance can be reduced by arranging the wind breaking head 51, the middle pipe 2 with a special section shape and the rear fork 6 with a flat structure; through setting up integrated into one piece's low windage bicycle frame 100, can reduce the installation part, simplify the outward appearance, promote overall structure's smoothness degree, further reduce the windage, reduce the consumption of riding, the practicality is strong.

In one embodiment, the top tube 1 and the rear upper fork 61 are located in the same plane.

Specifically, the center of the side where the rear forks 6 are close to each other is provided with a rib 63, and the rib 63 extends in the length direction of the rear forks 6. Through setting up protruding muscle 63, can strengthen the bending strength of back fork 6, avoid back fork 6 atress to buckle, improve life, guarantee driving safety, the practicality is strong.

In one embodiment, the ribs 63 are triangular in cross-sectional shape.

Specifically, low windage bicycle frame 100 still includes the protective housing, and the protective housing covers and sets up in the periphery of five-way pipe 4, and the protective housing is inside to be provided with the cavity. Through setting up the protective housing, can simplify the outward appearance, reinforcing surface smoothness reduces the windage, reduces the consumption of riding, can also protect to install in the inside mechanical structure of five-way pipe 4, increase of service life, the practicality is strong.

In one embodiment, the protective shell is of a split design and is divided into a left half shell and a right half shell along a direction perpendicular to the triangular frame.

Specifically, the bottom of the protective shell protrudes downwards to form a convex surface, and the protective shell is in an expanding shape with a downwards gradually-increasing cross section. Through the bottom surface that sets up the convex surface form and the molding of downward expansion formula, can reduce the interference to the air current under the five-way pipe 4, can also increase the speed that the bottom air current passes through, reduce the atmospheric pressure of protective housing bottom, ground fertility and stability are grabbed in the reinforcing, the reinforcing effect of riding, and the practicality is strong.

Specifically, the lower tube 3 is communicated with the inside of the rear lower fork 62, first threading holes communicated with the inside of the lower tube 3 are arranged at two ends of the lower tube 3, and second threading holes communicated with the inside of the rear lower fork 62 are arranged at one end, away from the five-way tube 4, of the rear lower fork 62. Through setting up first through wires hole and second through wires hole, can simplify outward appearance structure in low windage bicycle frame 100 inside wiring, reduce the windage, reduce the fault rate, and can reduce to ride the personnel of riding and touch and be colluded the danger of stumbling, guarantee driving safety, the practicality is strong.

In one embodiment, the first threading hole and the second threading hole are provided with elastic fixing rings for fixing the wires passing through the first threading hole and the second threading hole.

Specifically, the low wind resistance bicycle frame 100 is fabricated from a carbon fiber material. Through adopting carbon fiber material, can guarantee to improve even the intensity of low windage bicycle frame 100, guarantee driving safety, can also reduce whole weight, reinforcing result of use promotes the experience of riding, and the practicality is strong.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (6)

1. A low wind resistance bicycle frame comprises an upper tube, a middle tube, a lower tube, a five-way tube, a head tube and a rear fork, wherein the upper tube, the middle tube and the lower tube are connected end to form a triangular frame; the back vent includes back upper fork and back lower fork, the back lower fork one end with back upper fork is connected, the other end with the five-way pipe is connected, the back upper fork the other end with well union coupling, its characterized in that: the front end of the head pipe is integrally provided with an oval wind breaking head with the width gradually reduced from two sides to the middle; the front end of the cross section of the middle pipe is arc-shaped, and the rear end of the cross section of the middle pipe is triangular; the cross section of the rear fork is rectangular, and the length direction of the rectangle is parallel to the plane of the triangular frame; and the low wind resistance bicycle frame is integrally formed and processed.

2. A bicycle frame with low wind resistance according to claim 1, characterized in that a rib is arranged in the middle of one side of the rear fork, which is close to each other, and the rib extends along the length direction of the rear fork.

3. The low wind resistance bicycle frame of claim 1, characterized in that, the low wind resistance bicycle frame further comprises a protective shell, the protective shell is covered on the periphery of the five-way pipe, and a cavity is arranged inside the protective shell.

4. The low wind resistance bicycle frame of claim 3, wherein the bottom of the protective shell is convex, and the protective shell has an expanding shape with a gradually increasing downward cross section.

5. The low wind resistance bicycle frame of claim 1, wherein the down tube is communicated with the inside of the under back fork, two ends of the down tube are provided with first threading holes communicated with the inside of the down tube, and one end of the under back fork away from the five-way tube is provided with second threading holes communicated with the inside of the under back fork.

6. The low wind resistance bicycle frame according to claim 1, wherein the low wind resistance bicycle frame is processed by carbon fiber material.

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