High-strength light-weight bicycle frame

Abstract

The utility model discloses a high-strength light-weight bicycle frame which comprises a first bicycle frame body, a supporting rod fixedly connected to the front end of the first bicycle frame body, a second bicycle frame body fixedly connected to the outer wall of the supporting rod, an axle column fixedly connected to the bottom of the first bicycle frame body and a connecting frame fixedly connected to the lower surface of the outer wall of the second bicycle frame body. The end, away from the supporting rod, of the second frame is fixedly connected with a seat rod. According to the high-strength light-weight bicycle frame, the hinge piece arranged on the inner side of the second frame is used for sliding of the second installation workpiece, the second installation workpiece can slide at the notch position of the hinge piece after the first installation workpiece is loosened, and after the second installation workpiece slides to the embracing frame position, the seat rod is located on the first frame in a toppling mode; when the second installation workpiece slides to the position, shown in the figure 3, of the other set of embracing frame, namely the seat rod is perpendicular to the first frame, the welding lug installed between the two sets of second frames is used for being matched with the lower portion of the outer wall of the supporting rod, and the seat rod does not move after toppling towards the first frame.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle frames, specifically a high-strength lightweight bicycle frame. Background Technology

[0002] With the increasing severity of urban traffic congestion and growing environmental awareness, electric vehicles, as a convenient and low-carbon mode of transportation, are gaining popularity among consumers. Folding electric vehicles, due to their portability and small footprint, are particularly suitable for use and storage in cities. However, existing folding electric vehicle frame technology still has some shortcomings in structural design and lifespan, which urgently need improvement.

[0003] Traditional folding electric vehicle frames typically employ an X-shaped structure design. This design allows the frame to be unfolded to support the electric vehicle during use, while the X-shaped structure is retracted when not in use to fold the frame. In some cases, the stress of the X-shaped structure is concentrated at the central hinge, which can easily lead to damage and aging of the hinge over time, thus shortening the overall lifespan of the frame.

[0004] However, the traditional high-strength lightweight bicycle frame currently on the market has an insufficiently optimized structure and an unreasonable design. Utility Model Content

[0005] The purpose of this invention is to provide a high-strength, lightweight bicycle frame to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A high-strength, lightweight bicycle frame includes a frame one, a support rod fixedly connected to the front end of the frame one, a frame two fixedly connected to the outer wall of the support rod, an axle post fixedly connected to the bottom of the frame one, and a connecting frame fixedly connected to the lower surface of the outer wall of the frame two. A seat post is fixedly connected to the end of the frame two away from the support rod. The support rod is fixedly connected to the lower surface of the outer wall of the connecting frame. The bottom of the support rod is welded and fixed to the upper surface of the outer wall of the frame one. A hinge is hinged to the lower part of the outer wall of the seat post.

[0008] As a further embodiment of this utility model: a bracket is hinged to the middle part of the outer wall of the hinge member, and a mounting workpiece two is installed on the outer wall of the bracket through a connecting pin. One end of the mounting workpiece two is fixedly connected to a vehicle frame three.

[0009] As a further embodiment of this utility model: a top post is welded to the upper surface of the outer wall of the axle post, and an installation workpiece is installed on the outer wall of the top post through a connecting pin. One end of the installation workpiece is fixedly connected to a frame four.

[0010] As a further embodiment of this utility model: a frame four is provided below the frame three, and a welding block is welded to the rear end of the frame three and the frame four.

[0011] As a further improvement of this utility model: the number of welding blocks is two sets, and a connecting rod is installed between the two sets of welding blocks.

[0012] As a further embodiment of this utility model: a welding lug is welded to the center of the upper surface of the outer wall of the frame one, and a damping spring is installed at the hinge end of the welding lug, and the end of the damping spring away from the welding lug is hinged to the bottom of the hinge component.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In this utility model, a hinge joint located on the inner side of the second frame is used for sliding the second mounting workpiece. When the first mounting workpiece is released, the second mounting workpiece can slide within the hinge joint slot. When the second mounting workpiece slides to the bracket section, the seat post will tilt onto the first frame. When the second mounting workpiece slides to another bracket section, as... Figure 3 The position shown is where the seat rod is perpendicular to the first frame. The welding lugs installed between the two sets of the second frame are used to fit with the lower part of the outer wall of the support rod, so that the seat rod will not shift after tilting towards the first frame. Its structure is more optimized and its design is more reasonable. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a high-strength, lightweight bicycle frame.

[0016] Figure 2 This is an exploded view of a high-strength, lightweight bicycle frame.

[0017] Figure 3 This is a front view of a high-strength, lightweight bicycle frame.

[0018] Figure 4 For a high-strength lightweight bicycle frame Figure 1 Enlarged view of point A.

[0019] In the diagram: Frame 1, Frame 2, Connecting frame, Seat rod, Frame 3, Frame 4, Welding block, Top column, Axle column, Support rod, Hinge, Bracket, Mounting part 1, Mounting part 2, Connecting rod, Welding lug. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-4 In this embodiment of the present invention, a high-strength lightweight bicycle frame includes a frame 1, a support rod 10 fixedly connected to the front end of the frame 1, a frame 2 fixedly connected to the outer wall of the support rod 10, an axle post 9 fixedly connected to the bottom of the frame 1, and a connecting frame 3 fixedly connected to the lower surface of the outer wall of the frame 2. A seat post 4 is fixedly connected to one end of the frame 2 away from the support rod 10. The support rod 10 is fixedly connected to the lower surface of the outer wall of the connecting frame 3. The bottom of the support rod 10 is welded and fixed to the upper surface of the outer wall of the frame 1. A hinge 11 is hinged to the lower part of the outer wall of the seat post 4.

[0022] A bracket 12 is hinged to the middle part of the outer wall of the hinge 11. The outer wall of the bracket 12 is fitted with a mounting workpiece 14 via a connecting pin. One end of the mounting workpiece 14 is fixedly connected to a vehicle frame 5.

[0023] A top post 8 is welded to the upper surface of the outer wall of the axle post 9. The outer wall of the top post 8 is fitted with a mounting workpiece 13 via a connecting pin. One end of the mounting workpiece 13 is fixedly connected to the frame 6.

[0024] A frame 4 6 is installed below frame 3 5, and a welding block 7 is welded to the rear end of frame 3 5 and frame 4 6.

[0025] There are two sets of welding blocks 7, and a connecting rod 15 is installed between the two sets of welding blocks 7.

[0026] A welding lug 16 is welded to the center of the upper surface of the outer wall of the frame 1. A damping spring is installed at the hinge end of the welding lug 16, and the end of the damping spring away from the welding lug 16 is hinged to the bottom of the hinge 11.

[0027] The working principle of this utility model is as follows:

[0028] Welding: Welding of frame 1, axle column 9, frame 2 and seat rod 4 for assembly of the front bracket;

[0029] After the bracket is assembled, the hinge 11 that is hinged to the seat rod 4 is also hinged to the bracket 12. The second workpiece 14 is connected to one end of the bracket 12 to support the third frame 5 at the rear end of the second workpiece 14.

[0030] The top column 8, which is connected to the top of the axle column 9, and the mounting part 13 are mounted by a connecting rod to support the frame 4 6 at the rear end of the mounting part 13.

[0031] The welding block 7 at the rear of frame 3 5 and frame 4 6 is connected with the connecting rod 15 to form the rear frame after the frame 3 5 and frame 4 6 are assembled.

[0032] The hinged damping spring connecting the welding lug 16 on the upper surface of the outer wall of the frame 1 and the bottom of the hinge 11 is used to achieve shock absorption of the rear frame and the front frame. The light frame has a shock absorption problem, which can be solved by the above installation.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-strength, lightweight bicycle frame, comprising a frame one (1), a support rod (10) fixedly connected to the front end of the frame one (1), a frame two (2) fixedly connected to the outer wall of the support rod (10), an axle post (9) fixedly connected to the bottom of the frame one (1), and a connecting frame (3) fixedly connected to the lower surface of the outer wall of the frame two (2), wherein a seat post (4) is fixedly connected to one end of the frame two (2) away from the support rod (10), characterized in that: A support rod (10) is fixedly connected to the lower outer wall of the connecting frame (3). The bottom of the support rod (10) is welded and fixed to the upper outer wall of the frame (1). A hinge (11) is hinged to the lower outer wall of the seat rod (4).

2. The high-strength lightweight bicycle frame according to claim 1, characterized in that: The hinge (11) has a bracket (12) hinged to the middle part of its outer wall. The bracket (12) has a mounting workpiece two (14) mounted on its outer wall via a connecting pin. One end of the mounting workpiece two (14) is fixedly connected to a vehicle frame three (5).

3. The high-strength lightweight bicycle frame according to claim 1, characterized in that: A top post (8) is welded to the upper surface of the outer wall of the axle post (9). An installation workpiece (13) is installed on the outer wall of the top post (8) through a connecting pin. One end of the installation workpiece (13) is fixedly connected to the frame (6).

4. A high-strength, lightweight bicycle frame according to claim 2, characterized in that: A frame four (6) is provided below the frame three (5), and a welding block (7) is welded to the rear end of the frame three (5) and the frame four (6).

5. A high-strength, lightweight bicycle frame according to claim 4, characterized in that: The number of welding blocks (7) is two sets, and a connecting rod (15) is installed between the two sets of welding blocks (7).

6. A high-strength lightweight bicycle frame according to claim 1, characterized in that: A welding lug (16) is welded to the center of the outer wall of the frame (1). A damping spring is installed at the hinge end of the welding lug (16), and the end of the damping spring away from the welding lug (16) is hinged to the bottom of the hinge (11).

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