Frame assembly and motorcycle

Abstract

The frame assembly comprises a left side frame, a middle connecting piece and a right side frame, the left side frame and the right side frame are die castings of thin-wall structures, and the left side frame and the right side frame are oppositely arranged; the middle connecting piece is arranged between the left side frame and the right side frame and comprises a plurality of connecting rods and a cradle, the connecting rods are fixed to the left side frame and the right side frame through fasteners, and elastic connecting pieces are arranged on the two sides of the cradle to connect the left side frame with the right side frame; an oil tank containing cavity and a storage box containing cavity are formed between the left side frame and the right side frame, the oil tank containing cavity is located in front of the storage box containing cavity, a storage box is installed in the storage box containing cavity, and the storage box can at least contain two helmets. An oil tank containing cavity and a storage box containing cavity are formed between the left side frame and the right side frame, the oil tank containing cavity is located in front of the storage box containing cavity, so that the volume of the storage box containing cavity is increased, and the storage box at least can contain two helmets.

Description

Technical Field

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

[0002] In related technologies, motorcycle frame assemblies are typically constructed by welding multiple tubing together. Because various accessories (such as front footrests, rear footrests, and rear grab handles) need to be installed on the frame assembly, the stress from all these accessories is applied to the frame assembly. Therefore, the frame assembly needs sufficient strength, requiring multiple sets of tubing arranged side-by-side, as well as structures such as braces and tie rods. This increases the weight of the frame assembly, thus increasing the weight of the motorcycle. The large number of tubing to be welded leads to more processes and lower production efficiency. Furthermore, the numerous welding points make it prone to weak points such as incomplete welds, affecting the reliability of the frame assembly. The fuel tank is located at the rear of the frame assembly, taking up space and resulting in limited storage space in the storage compartment, typically only able to hold one helmet, which is inconvenient for users carrying two helmets. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems in the related art. To this end, this invention provides a frame assembly with optimized structure and layout, enabling the storage compartment to accommodate two helmets, thus providing convenience for the user.

[0004] According to an embodiment of this utility model, a vehicle frame assembly is provided, including a left side frame, a middle connector, and a right side frame. Both the left and right side frames are thin-walled die-cast parts, and are arranged opposite to each other. The middle connector is disposed between the left and right side frames, and includes several connecting rods and a rocker arm. The connecting rods are fixed to the left and right side frames by fasteners. Elastic connectors are provided on both sides of the rocker arm to connect the left and right side frames. A fuel tank cavity and a storage box cavity are formed between the left and right side frames. The fuel tank cavity is located in front of the storage box cavity, and a storage box is installed in the storage box cavity. The storage box can accommodate at least two helmets.

[0005] A vehicle frame assembly according to an embodiment of this utility model has at least the following beneficial effects:

[0006] The frame assembly uses die-cast left and right frames, which are fixedly connected by a middle connector. Between the left and right frames, there are fuel tank and storage compartments. The fuel tank is located in front of the storage compartment, which increases the volume of the storage compartment. The storage compartment can hold at least two helmets, providing convenience for the user.

[0007] According to some embodiments of the first aspect of the present invention, the outer wall of the storage box is provided with a plurality of support parts and mounting parts, the support parts abutting against the upper end face of the left side frame or the right side frame, and the mounting parts being fixed to the left side frame, the right side frame or the intermediate connecting member by fasteners.

[0008] According to some embodiments of the first aspect of the present invention, the support portion includes a plurality of vertically arranged ribs, the lower ends of the plurality of ribs are provided with a horizontal plate or a limiting groove, the horizontal plate abuts against the upper end surface of the left side frame or the right side frame, and the inner wall of the limiting groove abuts against the upper end surface of the left side frame or the right side frame.

[0009] According to some embodiments of the first aspect of the present invention, the intermediate connecting member includes a plurality of connecting rods arranged on the outer periphery of the oil tank receiving cavity, and the intermediate connecting member is provided with bolt holes for fixing the oil tank.

[0010] According to some embodiments of the first aspect of this utility model, the left side frame and the right side frame are integrally formed with a plurality of accessory mounting parts. The accessory mounting parts include a front footrest bracket, a rear footrest bracket, a rear armrest bracket, a fuel tank mounting interface, and a battery box mounting interface. The front footrest bracket and the rear footrest bracket are arranged on the outer sides of the left side frame and the right side frame, the rear armrest bracket is arranged at the rear end of the left side frame and the right side frame, and the fuel tank mounting interface and the battery box mounting interface are disposed between the left side frame and the right side frame.

[0011] According to some embodiments of the first aspect of this utility model, the left side frame includes a front inclined plate, a bottom horizontal plate, and a rear inclined plate connected in sequence. The bottom horizontal plate is connected to the lower ends of the front inclined plate and the rear inclined plate. An X-shaped support plate is provided between the front inclined plate and the rear inclined plate. The main structure of the right side frame is the same as that of the left side frame.

[0012] According to some embodiments of the first aspect of this utility model, the front inclined plate, the bottom horizontal plate, the rear inclined plate and the support plate are configured with non-uniform wall thickness.

[0013] According to some embodiments of the first aspect of this utility model, the opposing surfaces of the left side frame and the right side frame are provided with a plurality of reinforcing ribs, and the thickness of the plurality of reinforcing ribs is not uniform.

[0014] According to some embodiments of the first aspect of this utility model, the rocker arm is provided with shaft holes on both the left and right sides, and fastening bolts are provided in the shaft holes. The fastening bolts are fixed to the left side frame or the right side frame, and buffer sleeves are fitted on the fastening bolts to absorb lateral vibration. A front support arm is provided at the front end of the rocker arm, and a U-shaped opening is provided at the end of the front support arm. A hollow buffer block is provided in the U-shaped opening. The left side frame is provided with a limiting groove, and the hollow buffer block is located in the limiting groove to absorb longitudinal vibration.

[0015] The motorcycle according to a second aspect embodiment of the present invention includes the frame assembly described in the first aspect embodiment.

[0016] 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

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a schematic diagram of the frame assembly of this utility model embodiment. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the frame assembly of this utility model embodiment. Figure 2 ;

[0020] Figure 3 This is an exploded view of the left and right frames in an embodiment of this utility model;

[0021] Figure 4 This is a schematic diagram of the left side frame in an embodiment of this utility model;

[0022] Figure 5 This is a partially exploded view of the frame assembly according to an embodiment of the present utility model;

[0023] Figure 6 This is a schematic diagram of a storage box that holds two helmets.

[0024] Explanation of reference numerals in the attached figures:

[0025] Left side frame 100, front ramp 101, bottom cross plate 102, rear ramp 103, support plate 104, reinforcing rib 105, fuel tank cavity 106, storage box cavity 107, limiting groove 108, accessory mounting part 110, protective cover 120, intermediate connecting part 200, rocker arm 210, shaft hole 211, fastening bolt 212, buffer rubber sleeve 213, front support arm 214, hollow buffer block 215, right side frame 300, head tube 310, fuel tank 400, storage box 500, support part 510, mounting part 520, helmet 600. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] 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" or "second" is used in the description, 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 implicitly indicating the order of the indicated technical features.

[0029] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0030] Reference Figures 1 to 5 This application proposes a frame assembly, specifically a motorcycle frame assembly with a novel design, robust structure, and ease of mounting various accessories. The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings to better understand the technical solution and its effects.

[0031] The overall structure of the frame assembly mainly includes the left side frame 100, the middle connecting piece 200, and the right side frame 300. The left side frame 100 and the right side frame 300 are the main parts of the frame assembly. They have similar structures and both use thin-walled die-cast parts. The design of thin-walled die-cast parts not only reduces the overall weight of the frame assembly but also ensures its strength and rigidity, enabling the frame assembly to withstand various loads generated by the motorcycle during operation.

[0032] The left frame 100 and the right frame 300 are arranged opposite each other, forming the basic framework of the chassis assembly. A space is formed between the left frame 100 and the right frame 300 to accommodate components such as the fuel tank 400 and the storage box 500.

[0033] To support and secure the left side frame 100 and the right side frame 300, an intermediate connector 200 is positioned between them, serving a connecting and securing function. The intermediate connector 200 is fixed to the left side frame 100 and the right side frame 300 using fasteners (such as bolts, nuts, and pins), ensuring a tight connection between all parts of the frame assembly, forming a unified whole. This connection method is not only simple and reliable but also facilitates disassembly and maintenance.

[0034] The intermediate connector 200 can be designed in various shapes, sizes, and quantities to accommodate different models and specifications of motorcycles. Furthermore, the material of the intermediate connector 200 can be selected as needed to ensure its strength and durability.

[0035] Reference Figure 3 In one specific implementation, the intermediate connector 200 includes multiple connecting rods and a rocker arm 210. The connecting rods are arranged around the outer periphery of the fuel tank housing 106. On one hand, the multiple connecting rods effectively connect the left side frame 100 and the right side frame 300, enhancing the overall rigidity and stability of the frame assembly. The arrangement of the multiple connecting rods also improves the torsional resistance of the frame assembly, allowing the motorcycle to better resist the influence of external torque during operation. Figure 2 As shown, on the other hand, multiple connecting rods can also help fix the oil tank 400 and protect the oil tank 400. The oil tank 400 is usually assembled from two half shells. A side plate is formed on the connecting surface of the two half shells for easy installation. The connecting rods are provided with threaded holes. The side plate can be fixed to the connecting rods with bolts, or the side plate can be fixed to the left side frame 100 and the right side frame 300 with bolts, thereby fixing the oil tank 400.

[0036] Reference Figure 3 and Figure 5It should be understood that the rocker arm 210 is used to mount the engine. The rocker arm 210 has shaft holes 211 on both sides, with fastening bolts 212 installed in the shaft holes 211. The fastening bolts 212 are fixed to the left side frame 100 or the right side frame 300. A buffer sleeve 213 is fitted onto the fastening bolt 212. The fastening bolt 212 and the buffer sleeve 213 form an elastic connector to absorb lateral vibration. A front support arm 214 is provided at the front end of the rocker arm 210. A U-shaped opening is provided at the end of the front support arm 214, with a hollow buffer block 215 of free travel installed in the U-shaped opening. The front support arm 214 and the hollow buffer block 215 also form an elastic connector. The frame assembly has a limiting groove 108, in which the hollow buffer block 215 is located. The two opposite sidewalls of the limiting groove 108 limit the hollow buffer block 215 to absorb longitudinal vibration. Therefore, the vibrations generated during engine operation can be significantly reduced and transmitted to the frame assembly, improving riding comfort and stability.

[0037] The buffer sleeve 213 and the hollow buffer block 215 are typically made of elastic rubber or silicone. Two U-shaped plates can be integrally formed on the frame assembly, forming a limiting groove 108 between the two U-shaped plates. The two U-shaped plates are the two opposite sidewalls of the limiting groove 108. The hollow buffer block 215 is limited by the two U-shaped plates, resulting in a stable, durable, and highly reliable structure.

[0038] Between the left frame 100 and the right frame 300, two important cavities are formed: the fuel tank cavity 106 and the storage box cavity 107. The fuel tank cavity 106 is located at the front end of the frame assembly, and the storage box cavity 107 is located at the rear end of the frame assembly, that is, the fuel tank cavity 106 is located in front of the storage box cavity 107. This layout allows the fuel tank 400 and the storage box 500 to be reasonably distributed in different positions on the frame, which not only ensures the convenience of refueling the fuel tank 400, but also makes full use of the space of the frame. The fuel tank 400 does not occupy the space of the storage box 500, so that the storage box 500 has a larger volume.

[0039] The design of the fuel tank receiving cavity 106 takes into account the shape, size, and installation requirements of the fuel tank. Its shape matches the fuel tank 400, ensuring that the fuel tank 400 can be installed stably and facilitating refueling. The fuel tank receiving cavity 106 may also be equipped with auxiliary devices (such as clips, brackets, etc.) to fix the fuel tank, preventing the fuel tank 400 from shaking or falling off during driving.

[0040] Reference Figure 1 and Figure 2In some embodiments of this application, the fuel tank cavity 106 is located in front of the storage compartment cavity 107, and the layout fully considers the usage needs and space utilization of the fuel tank 400 and the storage compartment 500. Placing the fuel tank 400 at the front of the motorcycle makes the storage compartment cavity 107 more spacious, while the storage compartment 500 is located at the rear for convenient storage of items by passengers. The fuel tank 400 is mounted at the front of the frame assembly, and the left side frame 100 and right side frame 300 of the frame assembly form a "hugging" shape, which better protects the fuel tank 400 while ensuring strength and increasing the capacity of the fuel tank 400. Furthermore, the fuel tank 400 adopts a sunken layout, located at the front of the frame assembly, which effectively moves some electrical components forward and increases the longitudinal space of the storage box 500. The rear end of the frame assembly is outward-flaring, increasing the lateral space of the storage box 500. The rear armrest bracket is integrated into the rear of the frame assembly, increasing the vertical space of the storage box 500. This allows the storage box 500 to hold two helmets 600, optimizing the motorcycle's space utilization and solving the previous problem of not being able to fit two helmets 600, thus improving the motorcycle's practicality and making it convenient for users to carry two helmets. A divider can be installed inside the storage box 500 to separate the two helmets, preventing them from shifting or colliding.

[0041] At the front end of the left frame 100 and the right frame 300, a head tube 310 is provided. The head tube 310 is the mounting structure for the motorcycle's handlebars and front forks, and is a key component of the motorcycle's steering system. In practice, the head tube 310 can be integrally molded with the left frame 100 or the right frame 300 to improve the overall strength and rigidity of the frame assembly.

[0042] Several accessory mounting sections 110 are integrally formed on both the left side frame 100 and the right side frame 300. The accessory mounting sections 110 are used to mount motorcycle accessories such as front footrests, rear footrests, rear grab handles, fuel tanks 400, and battery boxes. The accessory mounting sections 110 allow these accessories to be quickly installed on the frame assembly, improving motorcycle production efficiency.

[0043] In practical implementation, the accessory mounting section 110 can be designed in various shapes and sizes according to the specific needs of the motorcycle to accommodate accessories of different models and specifications. Furthermore, the accessory mounting section 110 can also be equipped with threaded holes, slots, and other connecting structures to facilitate the installation of various accessories.

[0044] The frame assembly proposed in this application, applied to motorcycles, has the following technical advantages:

[0045] 1. Convenient for user storage: The storage compartment can hold at least two helmets, providing great convenience for users. Users can store two helmets (one for the driver and one for the passenger) together in the storage compartment, saving space and avoiding the problem of where to put the helmets. In addition, the storage compartment can also be used to store other items, such as raincoats, gloves, and other riding accessories, further improving the practicality and functionality of the motorcycle.

[0046] 2. Reduced weight, improved performance. The left frame 100 and right frame 300 are made of thin-walled die-cast parts, which have the advantages of light weight and high structural strength. This design not only reduces the weight of the frame assembly, but also helps to reduce the overall weight of the motorcycle, thereby improving the motorcycle's acceleration performance and fuel economy.

[0047] 3. Simplify the production process and improve efficiency. Several accessory mounting parts 110 are integrally formed on the left side frame 100 and the right side frame 300, which reduces the number of parts, simplifies the production process, reduces production costs, and improves production efficiency, making the production of the frame assembly faster and more efficient.

[0048] 4. Improved stability and durability of the frame assembly. The intermediate connector 200 tightly connects the left frame 100 and the right frame 300 together with fasteners, forming a unified whole. This makes the frame assembly structurally stable, improving its stability and durability. At the same time, the thin-walled structure of the left frame 100 and the right frame 300 also enhances the frame assembly's torsional strength and impact resistance, allowing it to better withstand the various loads generated during motorcycle operation.

[0049] 5. Facilitates the installation and removal of accessories. The accessory mounting section 110 is designed to ensure that accessories are securely installed on the frame assembly during motorcycle assembly, and to facilitate removal and replacement. This design not only improves the motorcycle's expandability and flexibility but also makes it easier for users to use and maintain.

[0050] Reference Figure 1 and Figure 6 The outer wall of the storage box 500 is provided with a support portion 510 and a mounting portion 520. The main function of the support portion 510 is to provide the necessary support force to ensure that the storage box 500 can be stably placed on the upper surface of the left side frame 100 and the right side frame 300, preventing shaking or displacement during travel. The positions of these support portions 510 are precisely designed to distribute the weight of the storage box 500, reduce local stress, and thus extend the service life of the storage box 500.

[0051] The mounting part 520 securely fixes the storage box 500 to the left side frame 100 and the right side frame 300, or connects it to the intermediate connector 200, using fasteners (such as bolts, nuts, rivets, etc.). The mounting part 520 can be a through hole or a threaded hole, and is fixed by bolts.

[0052] Furthermore, the support unit 510 has a specific structure consisting of multiple vertically arranged ribs. The lower end of each rib is equipped with a horizontal plate or a limiting groove. The horizontal plate, as a directly contacting planar support structure, has its width and thickness precisely calculated to provide sufficient support and stability. The limiting groove design is more flexible; its shape matches the upper surface of the left side frame 100 or the right side frame 300. The inner wall of the limiting groove can tightly fit the upper surface of the left side frame 100 or the right side frame 300, effectively preventing the storage box from shifting horizontally and maintaining good fixation even on bumpy roads.

[0053] In some embodiments of this application, the left side frame 100 or the right side frame 300 is provided with a plurality of accessory mounting portions 110, which may include a front footrest bracket, a rear footrest bracket, a rear armrest bracket, a fuel tank mounting interface, and a battery box mounting interface, etc. (See also...) Figure 1 and Figure 2 The front and rear footrest brackets are located on the outer sides of the left frame 100 and right frame 300, respectively, facilitating passenger access and riding. The rear grab handle bracket is located at the rear of the left frame 100 and right frame 300, providing stable support for passengers and facilitating the installation of the tail box. The fuel tank and battery box mounting interfaces are located between the left frame 100 and right frame 300, facilitating the installation and removal of the fuel tank 400 and battery box while maintaining the neatness and aesthetics of the frame assembly.

[0054] Reference Figure 3 and Figure 4 In some embodiments of this application, the left frame 100 includes a front ramp 101, a bottom cross plate 102, and a rear ramp 103 connected in sequence. The bottom cross plate 102 is connected to the lower ends of the front ramp 101 and the rear ramp 103, forming the bottom support of the frame assembly. An X-shaped support plate 104 is provided between the front ramp 101 and the rear ramp 103, which not only enhances the strength and stability of the frame assembly but also makes the frame assembly more visually layered. The X-shaped support plate 104 forms multiple hollows, which helps to reduce the weight of the frame assembly while meeting structural strength requirements. The main structure of the right frame 300 is basically the same as that of the left frame 100, ensuring the symmetry and balance of the frame assembly.

[0055] To further improve the performance of the frame assembly, the material thickness of its components has been optimized. Specifically, the front sloping plate 101, bottom cross plate 102, rear sloping plate 103, and support plate 104 are designed with non-uniform wall thickness. This design allows for adjustment of the wall thickness based on the stress conditions and functional requirements of each part, optimizing for different motorcycle models. This enables the frame assembly to meet strength and rigidity requirements while minimizing weight, thereby improving fuel economy and handling performance.

[0056] Reference Figure 4 Furthermore, to improve the rigidity and torsional resistance of the frame assembly, this invention also provides multiple reinforcing ribs 105 on the opposite surfaces of the left side frame 100 and the right side frame 300. The left side frame 100 and the right side frame 300 are thin-walled structures with edge plates. The reinforcing ribs 105 have multiple orientations, including parallel, intersecting, and end-to-end arrangements. The ends of the reinforcing ribs 105 connect to the edge plates, forming a complex reinforcing structure. The thickness of the multiple reinforcing ribs 105 is also non-uniform, allowing for optimization based on the stress conditions of the frame assembly. The addition of reinforcing ribs 105 significantly improves the strength and stability of the frame assembly, enabling the vehicle to maintain a stable posture under various road conditions.

[0057] It should be understood that the non-uniform thickness of multiple reinforcing ribs 105 means that the thickness of multiple reinforcing ribs 105 is inconsistent. It can be that some reinforcing ribs 105 are thicker and some are thinner, such as the reinforcing ribs 105 on the support plate 104 are thicker; or the thickness of each reinforcing rib 105 can vary, rather than being uniform. For example, the thickness can gradually decrease from the location of high stress to the location of low stress.

[0058] Moreover, such as Figure 4 As shown, to facilitate the connection of motorcycle components and the arrangement and management of wiring, cable trays are provided on the opposite sides of the left frame 100 and the right frame 300. These cable trays can accommodate the wires, preventing them from being exposed and improving the neatness and safety of the frame assembly. Furthermore, the design of the cable trays can be optimized according to the number and routing of the wires, allowing them to be neatly arranged inside the frame assembly, facilitating subsequent maintenance and repair.

[0059] X-shaped support plates 104 are distributed on both sides of the fuel tank receiving cavity 106. The support plates 104 not only form the fuel tank receiving cavity 106, but also enhance the overall structural strength of the frame assembly, which helps protect the fuel tank 400. By rationally designing the shape and position of the support plates 104, the stability and safety of the fuel tank 400 during operation can be ensured.

[0060] The number and position of the connecting rods can be optimized according to the specific dimensions and load-bearing requirements of the frame assembly. Increasing the number of connecting rods or adjusting their positions can further improve the structural strength and stability of the frame assembly. The shape of the connecting rods can be cylindrical, prismatic, or other specially designed shapes, depending on the specific motorcycle model.

[0061] Reference Figure 3 In some embodiments of this application, the head tube 310 is integrally formed at the front end of the right side frame 300. This design simplifies the connection structure between the head tube 310 and the right side frame 300, improves the stability and reliability of the connection, and reduces assembly steps. Compared with the traditional welding and fixing method, it greatly improves the shape and dimensional accuracy of the head tube 310 and prevents positional deviations during welding of the head tube 310, which could lead to the scrapping of the frame assembly.

[0062] Meanwhile, a protective cover 120 is provided at the front end of the left side frame 100. This protective cover 120 covers the left side of the head tube 310 and is fixed to it. The design of the protective cover 120 not only serves to fix and protect the head tube 310, but also improves the structural strength and rigidity of the entire vehicle. Multiple reinforcing ribs, such as mesh-like reinforcing ribs, are typically provided on the outer surface of the protective cover 120 to enhance structural strength. The protective cover 120 and the head tube 310 can be fixed together with bolts or other fasteners for easy disassembly and maintenance.

[0063] By designing the head tube 310 as a single piece molded onto the right side frame 300, the number of parts and assembly steps are reduced, lowering production costs and assembly difficulty. The design of the guard 120 further enhances the protective effect of the head tube 310, preventing it from being struck and damaged by external objects during operation.

[0064] The second aspect of this application proposes a motorcycle, which adopts the frame assembly of the first aspect embodiment, including all the technical solutions of the frame assembly, and has all the technical solutions of the frame assembly, which will not be described in detail here.

[0065] Understandably, the motorcycle proposed in this application improves the layout by placing the fuel tank in front of the storage box, while optimizing the layout of components such as the engine and shock absorbers. Under the same wheelbase, this allows for a further increase in the storage box space, meeting the user's need to store more items.

[0066] 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 vehicle frame assembly, characterized in that, include: The left and right frames are both thin-walled die-cast parts, and the left and right frames are arranged opposite to each other. An intermediate connector is disposed between the left side frame and the right side frame. The intermediate connector includes several connecting rods and a rocker arm. The connecting rods are fixed to the left side frame and the right side frame by fasteners. The rocker arm is provided with elastic connectors on both sides to connect the left side frame and the right side frame. A fuel tank cavity and a storage box cavity are formed between the left side frame and the right side frame. The fuel tank cavity is located in front of the storage box cavity. A storage box is installed in the storage box cavity, and the storage box can accommodate at least two helmets.

2. The frame assembly according to claim 1, characterized in that, The outer wall of the storage box is provided with multiple support parts and mounting parts. The support parts abut against the upper surface of the left side frame or the right side frame, and the mounting parts are fixed to the left side frame, the right side frame or the intermediate connector by fasteners.

3. The frame assembly according to claim 2, characterized in that, The support includes multiple vertically arranged ribs, and the lower end of the multiple ribs is provided with a horizontal plate or a limiting groove. The horizontal plate abuts against the upper end face of the left side frame or the right side frame, and the inner wall of the limiting groove abuts against the upper end face of the left side frame or the right side frame.

4. The frame assembly according to claim 1, characterized in that, The intermediate connector includes multiple connecting rods arranged around the outer periphery of the oil tank cavity, and bolt holes are provided on the intermediate connector for fixing the oil tank.

5. The frame assembly according to any one of claims 1 to 4, characterized in that, The left and right frames are integrally formed with several accessory mounting parts, each of which includes a front footrest bracket, a rear footrest bracket, a rear armrest bracket, a fuel tank mounting interface, and a battery box mounting interface. The front footrest bracket and the rear footrest bracket are arranged on the outer sides of the left and right frames, the rear armrest bracket is arranged at the rear end of the left and right frames, and the fuel tank mounting interface and the battery box mounting interface are located between the left and right frames.

6. The frame assembly according to any one of claims 1 to 4, characterized in that, The left side frame includes a front inclined plate, a bottom horizontal plate, and a rear inclined plate connected in sequence. The bottom horizontal plate is connected to the lower ends of the front and rear inclined plates. An X-shaped support plate is provided between the front and rear inclined plates. The main structure of the right side frame is the same as that of the left side frame.

7. The frame assembly according to claim 6, characterized in that, The front inclined plate, the bottom horizontal plate, the rear inclined plate, and the support plate are configured with non-uniform wall thickness.

8. The frame assembly according to claim 6, characterized in that, The opposite surfaces of the left and right frames are provided with multiple reinforcing ribs, and the thickness of the multiple reinforcing ribs is not uniform.

9. The frame assembly according to any one of claims 1 to 4, characterized in that, The rocker arm has shaft holes on both the left and right sides, and fastening bolts are installed in the shaft holes. The fastening bolts are fixed to the left side frame or the right side frame. The fastening bolts are fitted with buffer sleeves to absorb lateral vibration. A front support arm is provided at the front end of the rocker arm. The end of the front support arm is provided with a U-shaped opening. A hollow buffer block is provided in the U-shaped opening. The left side frame is provided with a limit groove. The hollow buffer block is located in the limit groove to absorb longitudinal vibration.

10. A motorcycle, characterized in that, Includes the frame assembly as described in any one of claims 1 to 9.

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