Portable motorcycle frame

Abstract

The utility model discloses a portable motorcycle frame which comprises a front vertical pipe, two side beam pipes and two cushion supporting pipes, each side beam pipe comprises a front connecting section, an arc-shaped turning section and a rear connecting section, a first supporting pipe is arranged between the rear connecting sections of the two side beam pipes, a second supporting pipe is arranged between the first supporting pipe and the front vertical pipe, and the cushion supporting pipes are arranged on the front vertical pipe. The frame further comprises a third supporting pipe, one end of the third supporting pipe is connected with the cushion supporting pipe, the other end of the third supporting pipe is connected with the tail end of the rear connecting section of the side beam pipe, a hanging piece mounting section is arranged at the connecting position of the third supporting pipe and extends towards the front end of the frame, and a hanging piece mounting groove is formed between the hanging piece connecting section and the tail end of the rear connecting section of the side beam pipe. The engine hanging piece is installed in the installation groove, the plane formed by the hanging piece connecting section and the rear connecting section of the side beam pipe is parallel to the plane in the length-width direction of the engine hanging piece, an engine supporting pipe is omitted, the engine is installed in a hanging piece mode, and therefore the weight of the frame is reduced, and the structure is simplified.

Description

Technical Field

[0001] This utility model relates to the field of vehicle frame technology, and in particular to a lightweight motorcycle frame. Background Technology

[0002] As a common and convenient means of transportation, the safety of motorcycles is directly related to the structural stability of their frame. The frame is a crucial component of a motorcycle, bearing the weight of the engine and other equipment and components; therefore, it requires a high load-bearing capacity. Existing motorcycle frames typically employ numerous load-bearing structures, making the overall frame relatively heavy, especially noticeable in large-displacement motorcycles, resulting in a higher overall weight.

[0003] To address the aforementioned issues, some improvements have been proposed in the prior art. For example, patent CN205737886U discloses a motorcycle frame, specifically a lightweight motorcycle frame; it includes a top tube and a main tube. The main tube is fixedly connected to the upper end of one side of the top tube, and a front support tube is fixedly connected to the lower end of one side of the top tube. Two engine support tubes are fixedly connected to both sides of the bottom end of the front support tube. An engine reinforcement plate is fixedly connected to one end of each of the two engine support tubes. Two first support tubes and two second support tubes are fixedly connected to the upper part of one end of each of the two engine support tubes. Two side tubes are fixedly connected to one end of the top tube, and a tailstock support tube is fixedly connected to one end of each of the two side tubes. Two shock-absorbing supports are fixedly connected to one side of the bottom end of each of the two second support tubes.

[0004] However, although the existing technology has a relatively simple overall structure, it still uses two engine support tubes, resulting in a heavy and complex frame. Utility Model Content

[0005] Purpose of the invention: The purpose of this utility model is to provide a lightweight motorcycle frame that eliminates the engine support tube and uses a hanging plate method for engine mounting, thereby reducing the weight of the frame and simplifying the structure.

[0006] Technical solution:

[0007] A lightweight motorcycle frame includes a front head tube, two side beam tubes, and two seat support tubes. Each side beam tube includes a front connecting section, an arc-shaped bend section, and a rear connecting section. The front connecting section of each side beam tube is connected to the front head tube. The arc-shaped bend section of each side beam tube is connected to a seat support tube. A first support tube is provided between the rear connecting sections of the two side beam tubes. A second support tube is provided between the first support tube and the front head tube. The frame also includes a third support tube. One end of the third support tube is connected to the seat support tube, and the other end of the third support tube is connected to the tail end of the rear connecting section of the side beam tube. A hanger mounting section extends towards the front of the frame from the connection point. A hanger mounting groove is formed between the hanger mounting section and the tail end of the rear connecting section of the side beam tube. An engine hanger is installed in the mounting groove. The plane formed by the hanger mounting section and the rear connecting section of the side beam tube is parallel to the plane along the length and width of the engine hanger.

[0008] Furthermore, a fifth support pipe is provided between the front connecting sections or the arc-shaped turning sections of the two side beam pipes.

[0009] Furthermore, a sixth support pipe is provided between the fifth support pipe and the second support pipe.

[0010] Furthermore, the spacing between the two side beam tubes gradually increases from the front end to the rear end of the frame.

[0011] Furthermore, a fourth support tube is provided between the two cushion support tubes.

[0012] Furthermore, a triangular support frame is provided between the front riser and the two side beams.

[0013] Furthermore, the front connecting section, the arc-shaped turning section, and the rear connecting section of the side beam tube are integrally formed.

[0014] Beneficial effects: Eliminating the traditional engine support tube and using a hanger mount significantly reduces the frame's weight and simplifies its structure. The hanger mount is installed in the mounting groove formed between the hanger mount connection section and the rear connection section of the side beam tube. The plane formed by the hanger mount connection section and the rear connection section of the side beam tube is parallel to the plane along the length and width of the engine hanger mount. This allows the load to be transferred along the plane formed by the length of the hanger mount connection section and the rear connection section of the side beam tube, effectively distributing the engine load and improving the overall load-bearing capacity of the frame. In addition, the overall frame structure is simpler and lighter, which is beneficial for improving the motorcycle's handling performance and fuel efficiency, making it particularly suitable for lightweight motorcycles that require high agility. The seat support tube, third support tube, and rear connection section form a triangular support structure, increasing the frame's stability and improving its load-bearing and deformation resistance. Attached Figure Description

[0015] Figure 1 This is a perspective view of the first embodiment of the present utility model;

[0016] Figure 2 This is a side view of the first embodiment of the present invention;

[0017] Figure 3 This is a plan view of the first embodiment of the present utility model;

[0018] Figure 4 This is a perspective view of the second embodiment of the present utility model;

[0019] Figure 5 This is a side view of the second embodiment of the present invention;

[0020] Figure 6 This is a plan view of the second embodiment of the present utility model. Detailed Implementation

[0021] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Example 1

[0023] like Figure 1-3 As shown, a lightweight motorcycle frame includes a front head tube 1, two side beam tubes 2, and two seat support tubes 3. Each side beam tube 2 includes a front connecting section 21, an arc-shaped bend section 22, and a rear connecting section 23. The front connecting section 21 of each side beam tube 2 is connected to the front head tube 1. The arc-shaped bend section 22 of each side beam tube 2 is connected to a seat support tube 3. A first support tube 4 is disposed between the rear connecting sections 23 of the two side beam tubes 2. A second support tube 5 is disposed between the first support tube 4 and the front head tube 1. The frame also includes... The system includes a third support tube 6, one end of which is connected to the seat support tube 3, and the other end of which is connected to the tail end of the rear connecting section 23 of the side beam tube 2. A hanger mounting section 61 is provided extending towards the front of the frame at the connection position. A hanger mounting groove is formed between the hanger mounting section 61 and the tail end of the rear connecting section 23 of the side beam tube 2. An engine hanger 7 is installed in the mounting groove. The plane formed by the hanger mounting section 61 and the rear connecting section 23 of the side beam tube 2 is parallel to the plane in the length and width direction of the engine hanger 7.

[0024] By eliminating the traditional engine support tube and using a hanger mount, the weight of the frame is significantly reduced, and the frame structure is simplified. The hanger 7 is installed in the mounting groove formed between the hanger mount connecting section 61 and the tail end of the rear connecting section 23 of the side beam tube 2. The plane formed by the hanger mount connecting section 61 and the rear connecting section 23 of the side beam tube is parallel to the plane in the length and width direction of the engine hanger 7. This allows the load-bearing force to be transferred along the plane formed by the length direction of the hanger mount connecting section 61 and the length direction of the rear connecting section 23 of the side beam tube, which can effectively distribute the engine load and improve the overall load-bearing capacity of the frame. In addition, the overall structure of the frame is also simpler and lighter, which is conducive to improving the handling performance and fuel efficiency of the motorcycle, and is particularly suitable for lightweight motorcycles that require high agility.

[0025] By reducing the use of traditional engine support tubes and adopting a hanger method for engine mounting, not only is the weight of the frame reduced, but the frame structure is also simplified, making it suitable for lightweight motorcycles and improving handling and comfort.

[0026] In this embodiment, the distance between the two side beam tubes 2 gradually increases from the front end to the rear end of the frame.

[0027] In this embodiment, a fourth support tube 8 is also provided between the two seat support tubes 3. By adding the fourth support tube 8 between the seat support tubes 3, the stability of the seat part can be increased, making the frame more stable when bearing the weight of the passenger and improving the comfort of the motorcycle.

[0028] In this embodiment, a triangular support frame 9 is provided between the front upright tube 1 and the two side beam tubes 2. This triangular support frame design strengthens the frame's resistance to lateral and torsional forces, and improves the overall rigidity and safety of the frame.

[0029] In this embodiment, the front connecting section 21, the arc-shaped turning section 22, and the rear connecting section 23 of the side beam tube 2 are integrally formed, which reduces the welding process, lowers the production cost, and improves the overall strength of the frame, avoiding structural weaknesses caused by welding connections.

[0030] Example 2

[0031] like Figure 4-6 As shown, a fifth support tube 10 is also provided between the front connecting sections 21 or the arc-shaped turning sections 22 of the two side beam tubes 2. This further enhances the rigidity of the frame, especially the support capacity at the front end. The support tube 10 effectively distributes the force between the side beam tubes, improves the stability of the frame, and avoids deformation or twisting of the front end.

[0032] In this embodiment, a sixth support tube 11 is provided between the fifth support tube 10 and the second support tube 5. This further enhances the torsional and bending resistance of the front end of the frame. The design of the sixth support tube 11 allows the frame to maintain high stability even under high loads.

[0033] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A motorcycle frame of the light type, characterized in that, The frame comprises a front vertical pipe (1), two side beam pipes (2) and two seat cushion support pipes (3), the side beam pipe (2) comprises a front connecting section (21), an arc-shaped turning section (22) and a rear connecting section (23), the front connecting section (21) of the side beam pipe (2) is connected with the front vertical pipe (1), the arc-shaped turning section (22) of each side beam pipe (2) is connected with a seat cushion support pipe (3), the rear connecting sections (23) of the two side beam pipes (2) are provided with a first support pipe (4) therebetween, the first support pipe (4) and the front vertical pipe (1) are provided with a second support pipe (5) therebetween, the frame further comprises a third support pipe (6), one end of the third support pipe (6) is connected with the seat cushion support pipe (3), the other end of the third support pipe (6) is connected with the tail end of the rear connecting section (23) of the side beam pipe (2) and is provided with a lug mounting section (61) extending to the front end of the frame at the connecting position, the lug mounting section (61) and the tail end of the rear connecting section (23) of the side beam pipe (2) form a lug mounting groove, an engine lug (7) is mounted in the mounting groove, the plane formed by the lug mounting section (61) and the rear connecting section (23) of the side beam pipe (2) is parallel to the plane of the engine lug (7) in the length and width directions.

2. A motorcycle frame according to claim 1, characterized in that The front connecting sections (21) or the arc-shaped turning sections (22) of the two side beam pipes (2) are further provided with a fifth support pipe (10).

3. A motorcycle frame according to claim 2, characterised in that The fifth support pipe (10) and the second support pipe (5) are provided with a sixth support pipe (11) therebetween.

4. The motorcycle frame of claim 1, wherein The distance between the two side beam pipes (2) gradually increases from the front end to the rear end of the frame.

5. The motorcycle frame of claim 1, wherein The fourth support pipe (8) is further provided between the two seat cushion support pipes (3).

6. The motorcycle frame of claim 1, wherein The front vertical pipe (1) and the two side beam pipes (2) are provided with a triangular support frame (9) therebetween.

7. The motorcycle frame of claim 1, wherein The front connecting section (21), the arc-shaped turning section (22) and the rear connecting section (23) of the side beam pipe (2) are integrally formed.

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