A motorcycle frame

Abstract

This utility model discloses a motorcycle frame, comprising: a main frame having a first connecting section and a second connecting section connected to each other, the first connecting section being located on a vertical plane of the main frame and the second connecting section being located on a horizontal plane of the main frame; a rear fork connected to the first connecting section and used for mounting the rear wheel axle; two fixed frames symmetrically distributed about a vertical plane, one end of each fixed frame being connected to the first connecting section and the other end being connected to the second connecting section, the orthographic projection of the fixed frame and the first connecting section in the vertical plane forming a triangular structure; and a reinforcing beam provided between the two fixed frames, the reinforcing beam connecting the two fixed frames, the orthographic projection of the reinforcing beam and the two fixed frames in the horizontal plane forming a triangular structure. This utility model improves the strength and rigidity of the frame by setting a stable triangular structure.

Description

Technical Field

[0001] This utility model relates to the technical field of vehicle frames, and particularly to a motorcycle frame. Background Technology

[0002] As the core load-bearing structure of the entire motorcycle, the rigidity and strength of the motorcycle frame directly affect the vehicle's safety, stability, and durability.

[0003] In some motorcycle frame structures, the motorcycle frame usually has a mounting bracket and a rear fork. The mounting bracket is located in the middle and rear of the frame and is mainly used to fix the seat and bear the vertical load of the driver and passenger. The rear fork is used to connect to the rear wheel and can receive the impact load of the road surface.

[0004] However, the existing frame mounting brackets and rear forks lack structural strength and rigidity, making them prone to localized deformation and affecting the normal operation of the motorcycle. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a motorcycle frame that improves the strength and rigidity of the frame by setting a triangular stabilizing structure.

[0006] A motorcycle frame according to an embodiment of the present invention includes: a main frame having a first connecting section and a second connecting section connected to each other, the first connecting section being located on a vertical plane of the main frame and the second connecting section being located on a horizontal plane of the main frame; a rear fork connected to the first connecting section and used for mounting a rear wheel axle; two fixed frames symmetrically distributed about the vertical plane, one end of each fixed frame being connected to the first connecting section and the other end being connected to the second connecting section, the orthographic projection of the fixed frame and the first connecting section in the vertical plane forming a triangular structure; and a reinforcing beam provided between the two fixed frames, the reinforcing beam connecting the two fixed frames, the orthographic projection of the reinforcing beam and the two fixed frames in the horizontal plane forming a triangular structure.

[0007] A motorcycle frame according to an embodiment of the present invention has at least the following beneficial effects:

[0008] 1. This utility model features two fixed frames that can be positioned corresponding to the motorcycle seat to support it. The first connecting section, the second connecting section, and the fixed frames are connected to form a three-dimensional structure, allowing the space between the two fixed frames to accommodate the rear fork, thus increasing the structural arrangement space of the rear fork. Furthermore, by projecting the fixed frames and the first connecting section onto a vertical plane to form a triangular structure, the structural strength and rigidity between the first connecting section, the second connecting section, and the fixed frames are improved using the principle of triangular stability. This allows the main frame to resist the longitudinal impact force transmitted from the rear wheel to the rear fork, while also improving the load-bearing capacity of the main frame and preventing deformation and breakage at the connection between the main frame and the rear fork.

[0009] 2. This utility model, by setting up a reinforcing beam, which is connected to two fixed frames, and the orthographic projection of the reinforcing beam and the two fixed frames on the horizontal plane is a triangular structure, utilizes the principle of structural stability of triangles to further improve the structural strength and rigidity of the fixed frames, so that the first connecting section can withstand the torsional force transmitted from the rear wheel to the rear fork, avoid the torsional deformation of the main frame, and further improve the heavy load capacity of the main frame.

[0010] According to an embodiment of the present invention, a motorcycle frame has a fixing frame having a first extension section and a second extension section connected to each other. The first extension section is connected to the end of the first connecting section away from the second connecting section, and the second extension section is connected to the end of the second connecting section.

[0011] According to an embodiment of the present invention, a motorcycle frame is provided with a first connecting post in the first extension section, the first connecting post being used to connect with a component of the motorcycle.

[0012] According to an embodiment of the present invention, a motorcycle frame has a second extension section having a slat and a decorative shell matching the shape of the slat. The slat and the decorative shell are connected to form a strip-shaped box structure, and the decorative shell is located on the side of the slat away from the rear fork.

[0013] According to an embodiment of the present invention, a motorcycle frame is provided, wherein the rear fork has a first support frame, a second support frame connected to the first support frame, and a connecting frame connecting the first support frame and the second support frame. The first support frame is installed on the first connecting section, and the second support frame is installed on the second connecting section. The first support frame, the second support frame, and the connecting frame have a triangular structure in their orthographic projection on the vertical plane.

[0014] According to an embodiment of the present invention, a motorcycle frame is provided with a shock absorber between a first support frame and a first connecting section. One end of the shock absorber is hinged to the first support frame, and the other end is hinged to the first connecting section. The shock absorber is located on the vertical plane.

[0015] According to an embodiment of the present invention, a motorcycle frame is provided with a mounting part at the connection between the first support frame and the second support frame. The mounting part is provided with a mounting hole for mounting the rear wheel axle of the motorcycle.

[0016] According to an embodiment of the present invention, a motorcycle frame is provided with bushings on both horizontal sides of the second support frame, and the first connecting section is provided with a shaft portion that is rotatably connected to the inside of the bushings.

[0017] According to an embodiment of the present invention, a motorcycle frame has a reinforcing beam that is arc-shaped, with the concave side of the reinforcing beam facing the shock absorber.

[0018] According to an embodiment of the present invention, a motorcycle frame has a main frame having a connecting tube for connecting the front of the motorcycle.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the frame structure of a motorcycle according to an embodiment of the present utility model;

[0022] Figure 2 for Figure 1 A front view of a motorcycle frame is shown.

[0023] Figure 3 for Figure 2 A schematic diagram of a motorcycle frame with the second extension removed is shown.

[0024] Figure 4 for Figure 1 A top view of a motorcycle frame is shown.

[0025] Figure 5 for Figure 1 The diagram shows a structural schematic of the second extension of a motorcycle frame.

[0026] Reference numerals: 100-Main frame, 110-First connecting section, 120-Second connecting section, 130-Rear fork, 140-Fixed frame, 150-Reinforcing beam, 160-First extension section, 170-Second extension section, 180-First connecting column, 190-Slat, 200-Decorative shell, 220-First support frame, 230-Second support frame, 240-Connecting frame, 250-Shock absorber, 260-Mounting part, 270-Mounting hole, 280-Busset, 290-Connecting pipe, 300-Shaft. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0028] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" and "second" are mentioned, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation, connection, and linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] The following description, in conjunction with the accompanying drawings, describes a motorcycle frame according to an embodiment of the present invention.

[0032] Reference Figure 1 The present invention aims to provide an embodiment of a motorcycle frame.

[0033] A motorcycle frame according to an embodiment of this utility model, referring to... Figure 1 , Figure 2 and Figure 4 The system includes a main frame 100, a rear fork 130, and two mounting brackets 140. The main frame 100 has a first connecting section 110 and a second connecting section 120 that are connected to each other. The first connecting section 110 is located on the vertical plane of the main frame 100, and the second connecting section 120 is located on the horizontal plane of the main frame 100. The rear fork 130 is connected to the first connecting section 110 and is used to mount the rear wheel axle. The two mounting brackets 140 are symmetrically distributed about the vertical plane. One end of the mounting bracket 140 is connected to the first connecting section 110, and the other end is connected to the second connecting section 120. The orthographic projection of the mounting bracket 140 and the first connecting section 110 in the vertical plane is a triangular structure. A reinforcing beam 150 is provided between the two mounting brackets 140, and the reinforcing beam 150 connects the two mounting brackets 140. The orthographic projection of the reinforcing beam 150 and the two mounting brackets 140 in the horizontal plane is a triangular structure.

[0034] It is understood that this utility model, by setting two fixing frames 140, which can be located at the corresponding position of the motorcycle seat and can support the motorcycle seat, and the first connecting section 110, the second connecting section 120 and the fixing frame 140 are connected to form a three-dimensional structure, so that the space between the two fixing frames 140 can accommodate the rear fork 130, thereby increasing the structural arrangement space of the rear fork 130. Furthermore, by making the fixing frame 140 and the first connecting section 110 project onto the vertical plane to form a triangular structure, the structural strength and rigidity between the first connecting section 110, the second connecting section 120 and the fixing frame 140 can be improved by utilizing the principle of structural stability of the triangle. This allows the main frame 100 to resist the longitudinal impact force transmitted from the rear wheel to the rear fork 130, and at the same time, it can improve the load-bearing capacity of the main frame 100 and avoid deformation and breakage at the connection between the main frame 100 and the rear fork 130.

[0035] Furthermore, by setting up a reinforcing beam 150, which is connected to two fixed frames 140, and the orthographic projection of the reinforcing beam 150 and the two fixed frames 140 on the horizontal plane is a triangular structure, the structural strength and rigidity of the fixed frame 140 are further improved by utilizing the principle of structural stability of the triangle. This allows the first connecting section 110 to withstand the torsional force transmitted from the rear wheel to the rear fork 130, avoiding torsional deformation of the main frame 100, and further improving the heavy load capacity of the main frame 100.

[0036] In some embodiments of this utility model, the fixing frame 140 has a first extension 160 and a second extension 170 that are connected to each other. The first extension 160 is connected to the end of the first connecting segment 110 away from the second connecting segment 120, and the second extension 170 is connected to the end of the second connecting segment 120. Therefore, the first connecting segment 110, the second connecting segment 120, the first extension 160 and the second extension 170 form a three-dimensional polygonal structure, which can improve the structural strength of the fixing frame 140.

[0037] In some embodiments of this utility model, the first extension 160 is provided with a first connecting post 180, which is used to connect with a component of a motorcycle.

[0038] Understandably, bolts can be used to fix the motorcycle seat bracket to the first connecting post 180 to ensure that the main frame 100 can strongly support the seat and improve the load-bearing capacity of the frame.

[0039] In some embodiments of this utility model, reference is made to Figure 5 The second extension 170 has a slat 190 and a decorative shell 200 that matches the shape of the slat 190. The slat 190 and the decorative shell 200 are connected to form a strip-shaped box structure. The decorative shell 200 is located on the side of the slat 190 away from the rear fork 130.

[0040] Understandably, the combination of the slats 190 and the decorative shell 200 forms a load-bearing box-shaped structure. The decorative shell 200 can be formed by sheet metal stamping, which reduces the weight of the second extension section 170. Furthermore, the bending structure of the decorative shell 200 can improve the strength of the second extension section 170, greatly reducing the risk of deformation of the second extension section 170 and greatly improving the load-bearing capacity of the fixing frame 140. In addition, the decorative shell 200 can also serve a decorative purpose.

[0041] In some embodiments of this utility model, reference is made to Figure 3 The rear fork 130 has a first support frame 220, a second support frame 230 connected to the first support frame 220, and a connecting frame 240 connecting the first support frame 220 and the second support frame 230. The first support frame 220 is installed on the first connecting section 110, and the second support frame 230 is installed on the second connecting section 120. The first support frame 220, the second support frame 230 and the connecting frame 240 have a triangular structure in their orthographic projection on the vertical plane.

[0042] Understandably, by making the first support frame 220, the second support frame 230, and the connecting frame 240 into a triangular structure in the vertical plane, the structural strength and rigidity of the rear fork 130 are improved by utilizing the structural stability principle of the triangle, which greatly reduces the risk of deformation and breakage of the rear fork 130 due to the impact force of the rear wheel.

[0043] In some embodiments of this utility model, a shock absorber 250 is provided between the first support frame 220 and the first connecting section 110. One end of the shock absorber 250 is hinged to the first support frame 220, and the other end is hinged to the first connecting section 110. The shock absorber 250 is located on a vertical plane.

[0044] Understandably, under the impact force transmitted to the rear wheel of the motorcycle, the impact force of the rear fork 130 can be transmitted to the shock absorber 250, causing the shock absorber 250 to compress and absorb the impact energy of the rear wheel. At the same time, it increases the vertical travel of the rear wheel axle, greatly improving the riding comfort.

[0045] In some embodiments of this utility model, a mounting part 260 is provided at the connection between the first support frame 220 and the second support frame 230, and the mounting part 260 is provided with a mounting hole 270 for mounting the rear wheel axle of the motorcycle.

[0046] Understandably, the connection between the first support frame 220 and the second support frame 230 has high structural strength, and the mounting hole 270 at this position allows the rear wheel axle to be installed, enabling the rear fork 130 to withstand the impact force generated by the rear wheel.

[0047] In some embodiments of this utility model, bushings 280 are provided on both horizontal sides of the second support frame 230, and the first connecting section 110 is provided with a shaft portion 300 that is rotatably connected to the inside of the bushing 280.

[0048] It should be noted that a bearing can be installed between the bushing 280 and the shaft 300. The bearing reduces the friction between the bushing 280 and the shaft 300, improves the life of the rear fork 130, and enhances the stability of the rear fork 130.

[0049] In some embodiments of this utility model, the reinforcing beam 150 is arranged in an arc shape, with the concave side of the reinforcing beam 150 facing the shock absorber 250.

[0050] Understandably, the reinforcing beam 150 has an arc-shaped structure, which can improve the strength of the reinforcing beam 150. Furthermore, when the rear fork 130 swings up and down, the reinforcing beam 150 can avoid the shock absorber 250, thus preventing interference between the reinforcing beam 150 and the shock absorber 250.

[0051] In some embodiments of this utility model, the main frame 100 has a connecting pipe 290 for connecting the front of the vehicle, thereby enabling the front of the motorcycle to achieve steering function.

[0052] In the description of this specification, references to terms such as "an embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0053] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A motorcycle frame, characterized in that, include: The main frame (100) has a first connecting section (110) and a second connecting section (120) that are connected to each other. The first connecting section (110) is located on the vertical plane of the main frame (100), and the second connecting section (120) is located on the horizontal plane of the main frame (100). A rear fork (130) is connected to the first connecting section (110) and is used to mount the rear wheel axle; Two fixing frames (140) are symmetrically distributed about the vertical plane. One end of each fixing frame (140) is connected to the first connecting segment (110), and the other end is connected to the second connecting segment (120). The orthographic projection of the fixing frame (140) and the first connecting segment (110) on the vertical plane is a triangular structure. A reinforcing beam (150) is provided between the two fixed frames (140), the reinforcing beam (150) connects the two fixed frames (140), and the orthographic projection of the reinforcing beam (150) and the two fixed frames (140) on the horizontal plane is a triangular structure.

2. The motorcycle frame according to claim 1, characterized in that, The fixing frame (140) has a first extension (160) and a second extension (170) connected to each other, the first extension (160) being connected to the end of the first connecting segment (110) away from the second connecting segment (120), and the second extension (170) being connected to the end of the second connecting segment (120).

3. The motorcycle frame according to claim 2, characterized in that, The first extension section (160) is provided with a first connecting post (180) for connecting to a component of the motorcycle.

4. The motorcycle frame according to claim 2, characterized in that, The second extension (170) has a slat (190) and a decorative shell (200) that matches the shape of the slat (190). The slat (190) and the decorative shell (200) are connected to form a strip-shaped box structure. The decorative shell (200) is located on the side of the slat (190) away from the rear fork (130).

5. The motorcycle frame according to claim 1, characterized in that, The rear fork (130) has a first support frame (220), a second support frame (230) connected to the first support frame (220), and a connecting frame (240) connecting the first support frame (220) and the second support frame (230). The first support frame (220) is installed on the first connecting section (110), and the second support frame (230) is installed on the second connecting section (120). The first support frame (220), the second support frame (230), and the connecting frame (240) have a triangular structure in the orthographic projection on the vertical plane.

6. The motorcycle frame according to claim 5, characterized in that, A shock absorber (250) is provided between the first support frame (220) and the first connecting section (110). One end of the shock absorber (250) is hinged to the first support frame (220), and the other end is hinged to the first connecting section (110). The shock absorber (250) is located on the vertical plane.

7. The motorcycle frame according to claim 5, characterized in that, A mounting part (260) is provided at the connection between the first support frame (220) and the second support frame (230). The mounting part (260) is provided with a mounting hole (270) for mounting the rear wheel axle of the motorcycle.

8. The motorcycle frame according to claim 5, characterized in that, The second support frame (230) is provided with bushings (280) on both horizontal sides, and the first connecting section (110) is provided with a shaft (300) that is rotatably connected to the inside of the bushings (280).

9. The motorcycle frame according to claim 6, characterized in that, The reinforcing beam (150) is arc-shaped, with the concave side of the reinforcing beam (150) facing the shock absorber (250).

10. The motorcycle frame according to claim 1, characterized in that, The main frame (100) has a connecting pipe (290) for connecting the front of the vehicle.

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