Anti-extrusion carbon fiber bicycle frame

Abstract

The utility model discloses an anti-extrusion carbon fiber bicycle frame, and relates to the technical field of bicycle frames. A handle is arranged at the upper end of the front beam, a connecting beam is arranged at the rear end of the front beam, a rotating beam is arranged at the rear end of the connecting beam, a cross beam is arranged at the rear end of the rotating beam, a front buffer frame and a rear buffer frame are arranged at the lower ends of the front beam and the cross beam respectively, and rotating frames are arranged on the front side and the rear side of the rotating beam and arranged on the outer side of a rotating cylinder. By means of the arrangement, the connecting beam and the cross beam can be folded in half when the front beam and the cross beam are extruded, the cross beam is prevented from being bent when being extruded due to the fact that the cross beam is too long, the front beam and the cross beam can be buffered when being pressed, and practicability of the front beam and the cross beam is improved.

Description

Technical Field

[0001] The present application relates to the field of bicycle frames, and in particular to an anti-extrusion carbon fiber bicycle frame. Background Art

[0002] As the skeleton of the entire bicycle, the frame determines and affects the correctness and comfort of the riding posture to the greatest extent. The frame components are the basic structure of the bicycle, and are also the skeleton and body of the bicycle. Other components are also directly or indirectly installed on the frame. The frame material has evolved from the earliest chrome-molybdenum steel to aluminum alloy, and then the use of composite materials such as carbon fiber. Others include scandium alloy, magnesium alloy, titanium alloy, etc. The industry continues to develop new material formulas, improve pipe and structural design capabilities and innovate processing technology, just to make the frame lighter, stronger, more comfortable and more streamlined. Density is one of the key factors that determine the weight of the frame. The lower the density, the lighter the frame can be. The density of chrome-molybdenum steel is 7.9, aluminum alloy is 2.6-2.9, titanium is 4.5, titanium alloy is 4.3-5.1, carbon fiber composite is 1.6, and magnesium alloy is 1.7. It can be seen that chrome-molybdenum steel has the highest density and carbon fiber composite is the lowest.

[0003] In the prior art, most bicycle frames adopt an integrated molded frame, which has a simple structure and is easy to process. However, the cross beams of current carbon fiber bicycle frames are too long and are very easy to bend when squeezed. Utility Model Content

[0004] The purpose of the present application is to provide an anti-extrusion carbon fiber bicycle frame to solve the problem that the cross beams of the current carbon fiber bicycle frame are too long and are very easy to bend when being squeezed.

[0005] In order to achieve the above-mentioned purpose, the present application specifically adopts the following technical scheme: an anti-extrusion carbon fiber bicycle frame, comprising a front beam, characterized in that a handle is arranged at the upper end of the front beam, a connecting beam is arranged at the rear end of the front beam, a rotating beam is arranged at the rear end of the connecting beam, a cross beam is arranged at the rear end of the rotating beam, and a front buffer frame and a rear buffer frame are arranged at the lower ends of the front beam and the cross beam respectively;

[0006] A rotating frame is arranged on both sides of the rotating beam, the rotating frame is arranged outside the rotating drum, the rotating drum is arranged in the connecting beam and the cross beam, and a limiting buckle is arranged on the upper end of the rotating drum, and the limiting buckle is arranged in the connecting beam and the cross beam.

[0007] Furthermore, the rotating drum is threadedly connected to the rotating frame, and bearings are provided at the connection between the rotating drum and the connecting beam and the cross beam.

[0008] Furthermore, the connecting beam and the cross beam are provided with slots at the limiting buckles.

[0009] Furthermore, the front buffer frame includes a sub-beam, a bottom beam is arranged at the lower end of the sub-beam, and a front wheel frame is arranged at the lower end of the bottom beam.

[0010] Furthermore, a buffer spring is arranged between the auxiliary beam and the bottom beam.

[0011] Furthermore, a fixed shaft is arranged in the front beam, and a hydrophobic plate is arranged at the lower end of the fixed shaft.

[0012] Furthermore, an air rail is provided at the lower end of the cross beam, a sliding rod is provided inside the air rail, and the sliding rod is provided at the upper end of the rear buffer frame.

[0013] Furthermore, a buffer groove is provided at the lower end of the slide rod, and a rear wheel frame is provided at the lower end of the rear buffer frame.

[0014] The beneficial effects of the present application are as follows: First, since the utility model is provided with a connecting beam, a rotating beam, a cross beam, a rotating frame and a rotating drum, the utility model can fold the connecting beam and the cross beam in half when squeezed, thereby preventing the cross beam from bending when being squeezed due to its excessive length; secondly, since the utility model is provided with a front buffer frame and a rear buffer frame, the utility model can provide buffering when the front beam and the cross beam are under pressure, thereby improving the practicality of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the overall first-view structural diagram of this application;

[0016] Figure 2 This is the overall second-view structural diagram of this application;

[0017] Figure 3 This is the overall third-view structural diagram of this application;

[0018] Figure 4 It is a cross-sectional view of the entire application;

[0019] Figure 5 This application is attached Figure 2 Partial view at point A in the middle;

[0020] Figure 6 This application is attached Figure 2 Partial view at point B in the middle;

[0021] Figure 7 This application is attached Figure 3 Partial view at center C;

[0022] Figure 8 This application is attached Figure 4 Partial view at D in the middle;

[0023] Figure numerals: 1, front beam; 11, connecting beam; 12, handle; 13, fixed shaft; 2, rotating beam; 21, rotating frame; 3, cross beam; 31, limit buckle; 32, air rail; 33, bearing; 34, rotating drum; 4, front buffer frame; 41, drain plate; 42, subbeam; 43, bottom beam; 44, front wheel frame; 45, buffer spring; 5, rear buffer frame; 51, slide rod; 52, buffer groove; 53, rear wheel frame. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0025] like Figure 1-Figure 8 As shown, an anti-extrusion carbon fiber bicycle frame proposed in one embodiment of the present application, an anti-extrusion carbon fiber bicycle frame, comprising a front beam 1, characterized in that a handle 12 is provided at the upper end of the front beam 1, a connecting beam 11 is provided at the rear end of the front beam 1, a rotating beam 2 is provided at the rear end of the connecting beam 11, a cross beam 3 is provided at the rear end of the rotating beam 2, and a front buffer frame 4 and a rear buffer frame 5 are provided at the lower ends of the front beam 1 and the cross beam 3 respectively;

[0026] A rotating frame 21 is arranged on both sides of the rotating beam 2. The rotating frame 21 is arranged outside the rotating drum 34. The rotating drum 34 is arranged inside the connecting beam 11 and the cross beam 3. A limiting buckle 31 is arranged on the upper end of the rotating drum 34. The limiting buckle 31 is arranged inside the connecting beam 11 and the cross beam 3.

[0027] The rotating drum 34 is threadedly connected to the rotating frame 21 , and bearings 33 are provided at the connection between the rotating drum 34 and the connecting beam 11 and the cross beam 3 .

[0028] The connecting beam 11 and the cross beam 3 are provided with slots at the limit buckles 31 .

[0029] The front buffer frame 4 includes a sub-beam 42 , a bottom beam 43 is disposed at the lower end of the sub-beam 42 , and a front wheel frame 44 is disposed at the lower end of the bottom beam 43 .

[0030] A buffer spring 45 is provided between the auxiliary beam 42 and the bottom beam 43 .

[0031] A fixed shaft 13 is arranged inside the front beam 1 , and a hydrophobic plate 41 is arranged at the lower end of the fixed shaft 13 .

[0032] An air rail 32 is disposed at the lower end of the cross beam 3 , a slide bar 51 is disposed inside the air rail 32 , and the slide bar 51 is disposed at the upper end of the rear buffer frame 5 .

[0033] A buffer groove 52 is provided at the lower end of the slide bar 51 , and a rear wheel frame 53 is provided at the lower end of the rear buffer frame 5 .

[0034] The working principle of the present application is as follows: when the present invention is used, when the front beam 1 is pressed downward by force, the auxiliary beam 42 drives the buffer spring 45 to press the bottom beam 43 downward for buffering, and when the cross beam 3 is pressed downward by force, the two sides of the slide bar 51 slide into the air rail 32 and the buffer groove 52 respectively for buffering; when the present invention is squeezed, the limit buckle 31 is lifted, the connecting beam 11 and the cross beam 3 are folded and rotated, and the rotating drum 34 engages with the rotating frame 21, rotates and moves upward until the connecting beam 11 and the cross beam 3 are perpendicular to the rotating beam 2 to complete the squeezing and folding.

[0035] The beneficial technical effects of implementing the present application are as follows: first, since the utility model is provided with a connecting beam 11, a rotating beam 2, a cross beam 3, a rotating frame 21 and a rotating drum 34, the utility model can fold the connecting beam 11 and the cross beam 3 in half when squeezed, thereby preventing the cross beam 3 from being bent when being squeezed due to its excessive length; secondly, since the utility model is provided with a front buffer frame 4 and a rear buffer frame 5, the utility model can perform buffering when the front beam 1 and the cross beam 3 are under pressure, thereby improving the practicality of the utility model.

[0036] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An anti-extrusion carbon fiber bicycle frame, comprising a front beam (1), characterized in that: The upper end of the front beam (1) is provided with a handle (12), the rear end of the front beam (1) is provided with a connecting beam (11), the rear end of the connecting beam (11) is provided with a rotating beam (2), the rear end of the rotating beam (2) is provided with a cross beam (3), and the lower ends of the front beam (1) and the cross beam (3) are provided with a front buffer frame (4) and a rear buffer frame (5), respectively; A rotating frame (21) is provided on both the front and rear sides of the rotating beam (2); the rotating frame (21) is arranged outside a rotating drum (34); the rotating drum (34) is arranged inside the connecting beam (11) and the cross beam (3); a limiting buckle (31) is provided on the upper end of the rotating drum (34); the limiting buckle (31) is arranged inside the connecting beam (11) and the cross beam (3).

2. The compression-resistant carbon fiber bicycle frame according to claim 1, characterized in that: The rotating drum (34) is threadedly connected to the rotating frame (21), and a bearing (33) is provided at the connection between the rotating drum (34), the connecting beam (11) and the cross beam (3).

3. The compression-resistant carbon fiber bicycle frame according to claim 1, characterized in that: The connecting beam (11) and the cross beam (3) are provided with slots at the limiting buckles (31).

4. The compression-resistant carbon fiber bicycle frame according to claim 1, characterized in that: The front buffer frame (4) comprises a secondary beam (42), a bottom beam (43) is arranged at the lower end of the secondary beam (42), and a front wheel frame (44) is arranged at the lower end of the bottom beam (43).

5. The compression-resistant carbon fiber bicycle frame according to claim 4, characterized in that: A buffer spring (45) is provided between the auxiliary beam (42) and the bottom beam (43).

6. The compression-resistant carbon fiber bicycle frame according to claim 1, characterized in that: A fixed shaft (13) is arranged inside the front beam (1), and a hydrophobic plate (41) is arranged at the lower end of the fixed shaft (13).

7. The compression-resistant carbon fiber bicycle frame according to claim 1, characterized in that: An air rail (32) is provided at the lower end of the crossbeam (3), a sliding rod (51) is provided inside the air rail (32), and the sliding rod (51) is provided at the upper end of the rear buffer frame (5).

8. The compression-resistant carbon fiber bicycle frame according to claim 7, characterized in that: The lower end of the slide bar (51) is provided with a buffer groove (52), and the lower end of the rear buffer frame (5) is provided with a rear wheel frame (53).

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