Main framework structure of motorcycle frame

Abstract

The utility model relates to the technical field of motorcycles, in particular to a main framework structure of a motorcycle frame. A main framework structure of a motorcycle frame comprises a first support, a second support, a third support, a fifth support and a sixth support, the upper end of the second support is connected with the upper end of the first support, and the upper end of the third support is connected with the second support; the lower end of the fifth bracket is connected with the lower end of the third bracket, and the upper end of the fifth bracket is connected with the second bracket, so that a triangular supporting structure is formed among the second bracket, the third bracket and the fifth bracket; the two ends of the sixth support are connected with the first support and the fifth support respectively. A plurality of supporting rods are erected on the sixth support and used for placing batteries. The utility model aims to reduce the weight of the main framework of the motorcycle under the conditions that the structural strength of the main framework of the frame of the motorcycle is guaranteed and the main framework has enough space for placing a battery and a motor.

Description

Technical Field

[0001] The utility model relates to the technical field of motorcycles, in particular to a main skeleton structure of a motorcycle frame. Background Art

[0002] Motorcycles are a popular means of transportation and are widely used in everyday life. However, due to their smaller size, the structural strength of their frames cannot compare to that of four-wheeled or three-wheeled vehicles. If the frame's structural strength is too high, the main frame of the motorcycle will often be too heavy, which in turn affects the motorcycle's performance during cornering and shifting. Therefore, how to ensure sufficient structural strength while reducing the frame's load is a key issue in the motorcycle industry.

[0003] Modern motorcycles feature a compact design, yet components like batteries and motors must be mounted on the frame. Therefore, ample space must be provided for these components. Since batteries and motors cannot be further reduced in size and weight, the motorcycle's main frame must provide ample space and structural strength to accommodate them. This limits the size and structure of current frame designs, further increasing the overall size and weight of the frame. Utility Model Content

[0004] The purpose of the utility model is to provide a main skeleton structure of a motorcycle frame, so as to reduce the weight of the main skeleton of the motorcycle while ensuring the structural strength of the main skeleton of the motorcycle frame and having enough space to place batteries and motors.

[0005] The purpose of this utility model is achieved in this way:

[0006] A main skeleton structure of a motorcycle frame comprises a first bracket, a second bracket, a third bracket, a fifth bracket and a sixth bracket, wherein the upper end of the second bracket is connected to the upper end of the first bracket, and the upper end of the third bracket is connected to the second bracket;

[0007] The lower end of the fifth bracket is connected to the lower end of the third bracket, and the upper end of the fifth bracket is connected to the second bracket, so that a triangular support structure is formed between the second bracket, the third bracket and the fifth bracket;

[0008] Two ends of the sixth bracket are connected to the first bracket and the fifth bracket respectively; a plurality of support rods are mounted on the sixth bracket, and the support rods are used to place batteries.

[0009] Preferably, a connecting piece is formed on the second bracket, and the position where the fifth bracket is connected to the second bracket is located between the lower end of the second bracket and the connecting piece.

[0010] Preferably, a seventh bracket is further provided on the main frame; the upper end of the seventh bracket is connected to the connection point of the second and third brackets, and the other end is connected to the middle of the fifth bracket, thereby dividing the triangular support structure formed by the second, third, and fifth brackets into two triangular support structures. Preferably, the second brackets are arranged at an angle relative to the first brackets, and the lower ends of the second brackets diverge to both sides of the main frame, so that the distance between the upper ends of the second brackets is smaller than the distance between the lower ends of the second brackets.

[0011] Preferably, a fourth bracket is further included, wherein the upper end of the fourth bracket is connected to the lower end of the fifth bracket;

[0012] The lower end of the fourth bracket is also connected to a bottom guard plate, and the other end of the bottom guard plate is connected to the lower end of the first bracket. The bottom guard plate is used to place the motor.

[0013] Preferably, the first bracket, the second bracket, the third bracket, the fourth bracket, the fifth bracket, the sixth bracket and the seventh bracket are integrally formed into a main skeleton.

[0014] Preferably, the rear tail rack is detachably connected to the second bracket;

[0015] The end of the second bracket is recessed to form a step portion, and the step portion is provided with a first connecting hole;

[0016] The rear tailstock includes an upper support rod and a lower support rod, and a second connecting hole is opened at the end of the lower support rod. The end of the lower support rod can abut against the step portion so that the first connecting hole and the second connecting hole can be aligned, thereby facilitating the connection of the rear tailstock with the second bracket.

[0017] Preferably, the end of the upper support rod is formed with an upper fixed portion;

[0018] The second bracket is provided with a connecting seat, and the fixing portion can be connected to the connecting seat, so that the upper support rod is connected to the second bracket.

[0019] Preferably, the rear tailstock is connected to the second bracket by bolts.

[0020] Preferably, a contraction portion is formed on the upper end of the second bracket, and a steering shaft connecting portion is provided on the upper end of the contraction portion.

[0021] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects:

[0022] 1. In this technical solution, the upper end of the first bracket is connected to the upper end of the second bracket, and the second bracket is inclined relative to the first bracket, leaving sufficient space between the lower end of the second bracket and the lower end of the first bracket for accommodating the battery. However, compared with existing structures, the upper ends of the first bracket and the second bracket can be narrower, thereby reducing the material used in the main frame and achieving the purpose of reducing the weight of the main frame.

[0023] 2. The main frame in this technical solution is formed with multiple sets of triangular support structures through the cooperation of the second bracket, the third bracket, the fifth bracket and the seventh bracket. While reducing the material used in the main frame and reducing the weight of the main frame, the triangular support structure is used to give the main frame sufficient structural strength.

[0024] 3. The rear tail rack can be detachably connected to the main frame, making assembly simple and convenient. Users can choose the appropriate rear tail rack according to their needs. When the rear tail rack is separated from the main frame, it is also easier to store and transport. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a motorcycle of the present utility model;

[0026] Figure 2 This is a schematic structural diagram of the utility model when the main frame is not connected to the rear tail frame;

[0027] Figure 3 It is a structural schematic diagram of the utility model when the main frame is connected to the rear tail frame.

[0028] Figure 4 It is a structural schematic diagram of another angle of view when the main frame of the utility model is connected to the rear tail frame.

[0029] Reference numerals:

[0030] 1. Frame; 11. Main skeleton; 12. Steering shaft connection; 13. Rear fork;

[0031] 2. The first bracket;

[0032] 3. Second bracket; 31. Third bracket; 32. Fifth bracket; 33. Contraction portion; 34. Step portion; 35. Connecting hole 1; 36. Connecting seat; 37. Connecting piece;

[0033] 4. Fourth bracket; 41. Bottom guard plate; 42. Rear fork connection;

[0034] 5. Rear tail rack; 51. Upper support rod; 52. Lower support rod; 53. Second connecting hole; 54. Fixing part;

[0035] 6. Sixth bracket; 61. Support rod;

[0036] 7. The seventh bracket. DETAILED DESCRIPTION

[0037] The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.

[0038] like Figure 1-Figure 3 The main skeleton structure of a motorcycle frame shown includes a first bracket 2 , a second bracket 3 , a third bracket 31 , a fifth bracket 32 and a sixth bracket 6 .

[0039] In this embodiment, two first brackets 2, two second brackets 3, two third brackets 31, two fifth brackets 32, and two sixth brackets 6 are provided, and they are symmetrically arranged. The upper end of the second bracket 3 is connected to the upper end of the first bracket 2, and the upper end of the third bracket 31 is connected to the second bracket 3.

[0040] The lower end of the fifth bracket 32 is connected to the lower end of the third bracket 31, and the upper end of the fifth bracket 32 is connected to the second bracket 3, forming a triangular support structure between the second bracket 3, the third bracket 31, and the fifth bracket 32. This triangular support structure increases the structural height of the main frame 11. The through hole formed between the second bracket 3, the third bracket 31, and the fifth bracket 32 also reduces the material used in the manufacture of the main frame 11, thereby reducing the overall weight of the main frame 11. This effectively improves the motorcycle's handling performance by reducing the weight of the frame 1 without affecting its structural strength.

[0041] Furthermore, both ends of the sixth bracket 6 are respectively connected to the first bracket 2 and the fifth bracket 32. A plurality of support rods 61 are arranged between the two sixth brackets 6, and the support rods 61 are used to place batteries.

[0042] like Figure 1-Figure 3 As shown, a tab 37 is formed on the second bracket 3, and the position where the fifth bracket 32 is connected to the second bracket 3 is located between the lower end of the second bracket 3 and the tab 37. The angle between the third bracket 31 and the second bracket 3 can be maintained at a fixed angle to ensure that the third bracket 31 can provide sufficient support.

[0043] like Figure 1-Figure 3 As shown, the main frame 11 is also provided with a seventh bracket 7. The upper end of the seventh bracket 7 is connected to the connection point of the second bracket 3 and the third bracket 31, and the other end is connected to the middle of the fifth bracket 32, thereby splitting the triangular support structure formed by the second bracket 3, the third bracket 31, and the fifth bracket 32 into two triangular support structures. This further improves the structural strength of the main frame 11.

[0044] like Figures 1-4As shown, the second brackets 3 are arranged obliquely relative to the first brackets 2, and the lower ends of the second brackets 3 diverge to both sides of the main frame 11, so that the distance between the upper ends of the second brackets 3 is smaller than the distance between the lower ends of the second brackets 3. This allows the structural dimensions of the upper end of the main frame 11 to be slightly reduced, and by introducing the materials used for the main frame 11, the weight of the main frame 11 is reduced.

[0045] Since the fifth bracket 32 is connected to the second bracket 3 at a position close to the lower end of the second bracket 3, and the sixth bracket 6 is connected to the fifth bracket 32, the space enclosed by the first bracket 2, the fifth bracket 32 and the sixth bracket 6 is still large enough to place the battery.

[0046] like Figures 1-4 As shown, a fourth bracket 4 is also included, and the upper end of the fourth bracket 4 is connected to the lower end of the fifth bracket 32. The lower end of the fourth bracket 4 is also connected to a bottom guard plate 41, and the other end of the bottom guard plate 41 is connected to the lower end of the first bracket 2. The bottom guard plate 41 is used to place the motor.

[0047] A rear flat fork connecting portion 42 is formed at the connection between the fourth bracket 4 and the fifth bracket 32 . The rear flat fork connecting portion 42 is used to connect the rear flat fork 13 .

[0048] As a preferred embodiment, the first bracket 2 , the second bracket 3 , the third bracket 31 , the fourth bracket 4 , the fifth bracket 32 , the sixth bracket 6 and the seventh bracket 7 are integrally formed into the main skeleton 11 .

[0049] like Figure 2-Figure 4 As shown, the rear tail frame 5 is detachably connected to the second bracket 3 .

[0050] The end of the second bracket 3 is recessed to form a step portion 34, and a connecting hole 35 is opened on the step portion 34;

[0051] The rear tailstock 5 includes an upper support rod 51 and a lower support rod 52. A second connecting hole 53 is formed at the end of the lower support rod 52. The end of the lower support rod 52 can abut against the step portion 34 so that the first connecting hole 35 and the second connecting hole 53 can be aligned, thereby facilitating the connection of the rear tailstock 5 to the second bracket 3.

[0052] When the rear tailstock 5 is connected to the main frame 11 , the end of the lower support rod 52 can abut against the step portion 34 , thereby limiting the upper limit of the swing of the rear tailstock 5 .

[0053] In this technical solution, the rear tailstock 5 can be easily and quickly connected to the main frame 11, and can be replaced with a rear tailstock 5 of different lengths according to the needs of the user during actual use.

[0054] like Figure 2-Figure 4 As shown, a fixing portion 54 is formed on the end of the upper support rod 51 .

[0055] The second bracket 3 is provided with a connecting seat 36 , and the fixing portion 54 can be connected to the connecting seat 36 , so that the upper support rod 51 is connected to the second bracket 3 .

[0056] The cooperation between the upper support rod 51 and the lower support rod 52 can make the rear tailstock 5 more firmly connected to the main frame 11 .

[0057] Furthermore, the rear tail frame 5 is connected to the second bracket 3 by bolts.

[0058] like Figure 2-Figure 4 As shown, a contraction portion 33 is formed at the upper end of the second bracket 3 , and the upper end of the contraction portion 33 is further contracted compared to the second bracket 3 , thereby reducing the weight of the main frame 11 .

[0059] The upper end of the contraction portion 33 is provided with a steering shaft connection portion 12. When the main skeleton 11 constitutes the vehicle frame 1, the steering shaft connection portion 12 is used to connect the steering shaft of the handlebar.

[0060] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

[0061] It should be noted that the structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification for the understanding and reading of those familiar with this technology, and are not used to limit the conditions for the implementation of the present invention. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose of the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be considered as the scope of the implementation of the present invention without substantially changing the technical content.

[0062] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element through an intervening element.

[0063] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

Claims

1. A main skeleton structure of a motorcycle frame, characterized by: It comprises a first bracket (2), a second bracket (3), a third bracket (31), a fifth bracket (32) and a sixth bracket (6), wherein the upper end of the second bracket (3) is connected to the upper end of the first bracket (2), and the upper end of the third bracket (31) is connected to the second bracket (3); The lower end of the fifth bracket (32) is connected to the lower end of the third bracket (31), and the upper end of the fifth bracket (32) is connected to the second bracket (3), so that a triangular support structure is formed between the second bracket (3), the third bracket (31) and the fifth bracket (32); The two ends of the sixth bracket (6) are respectively connected to the first bracket (2) and the fifth bracket (32); a plurality of support rods (61) are mounted on the sixth bracket (6), and the support rods (61) are used to place batteries.

2. The main skeleton structure of a motorcycle frame according to claim 1, characterized in that: A connecting piece (37) is formed on the second bracket (3), and the position where the fifth bracket (32) is connected to the second bracket (3) is located between the lower end of the second bracket (3) and the connecting piece (37).

3. The main skeleton structure of a motorcycle frame according to claim 1, characterized in that: A seventh bracket (7) is also provided on the main frame (11); the upper end of the seventh bracket (7) is connected to the connection point of the second bracket (3) and the third bracket (31), and the other end is connected to the middle of the fifth bracket (32), thereby dividing the triangular support structure formed by the second bracket (3), the third bracket (31) and the fifth bracket (32) into two triangular support structures.

4. The main skeleton structure of a motorcycle frame according to claim 1, characterized in that: The second brackets (3) are distributed obliquely relative to the first brackets (2), and the lower ends of the second brackets (3) diverge to both sides of the main frame (11), so that the distance between the upper ends of the second brackets (3) is smaller than the distance between the lower ends of the second brackets (3).

5. The main skeleton structure of a motorcycle frame according to claim 1, 2, 3 or 4, characterized in that: It also includes a fourth bracket (4), the upper end of the fourth bracket (4) being connected to the lower end of the fifth bracket (32); The lower end of the fourth bracket (4) is also connected to a bottom guard plate (41), the other end of the bottom guard plate (41) is connected to the lower end of the first bracket (2), and the bottom guard plate (41) is used to place the motor.

6. The main skeleton structure of a motorcycle frame according to claim 5, characterized in that: The first bracket (2), the second bracket (3), the third bracket (31), the fourth bracket (4), the fifth bracket (32), the sixth bracket (6) and the seventh bracket (7) are integrally formed into a main frame (11).

7. The main skeleton structure of a motorcycle frame according to claim 1, 4 or 6, characterized in that: The rear tail frame (5) is detachably connected to the second bracket (3); The end of the second bracket (3) is recessed to form a step portion (34), and a connecting hole (35) is formed on the step portion (34); The rear tailstock (5) comprises an upper support rod (51) and a lower support rod (52). A second connecting hole (53) is formed at the end of the lower support rod (52). The end of the lower support rod (52) can abut against the step portion (34), so that the first connecting hole (35) and the second connecting hole (53) can be aligned, thereby facilitating the connection of the rear tailstock (5) with the second bracket (3).

8. The main skeleton structure of a motorcycle frame according to claim 7, characterized in that: The end of the upper support rod (51) is formed with an upper fixed portion (54); A connecting seat (36) is provided on the second bracket (3), and the fixing portion (54) can be connected to the connecting seat (36), so that the upper support rod (51) is connected to the second bracket (3).

9. The main skeleton structure of a motorcycle frame according to claim 8, characterized in that: The rear tail frame (5) is connected to the second bracket (3) via bolts.

10. The main skeleton structure of a motorcycle frame according to claim 1, 4 or 6, characterized in that: A contraction portion (33) is formed at the upper end of the second bracket (3), and a steering shaft connection portion (12) is provided at the upper end of the contraction portion (33).

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