Motorcycle

Abstract

The motorcycle comprises a motorcycle frame, a motorcycle body covering part, a walking assembly and a power system, the motorcycle frame comprises a main motorcycle frame body and an auxiliary motorcycle frame body, and the main motorcycle frame body is fixedly connected with the auxiliary motorcycle frame body; the vehicle body cover includes a seat cushion; the walking assembly is connected with the frame and comprises a front wheel and a rear wheel; the power system is in transmission connection with the walking assembly. The seat cushion is at least partially arranged on the auxiliary frame; the seat cushion comprises a concave part, the connecting line between the axis of the front wheel and the axis of the rear wheel is defined as the wheel axis of the motorcycle, the distance between the lowest point where the concave part is located and the wheel axis is defined as the height of the seat cushion of the motorcycle, and the ratio of the height of the seat cushion to the length of the wheel axis is larger than or equal to 0.26 and smaller than or equal to 0.4. By means of the arrangement, a driver can change the riding posture more comfortably, meanwhile, the direction of the motorcycle can be better controlled when the driver stands for riding, the riding comfort is achieved, and meanwhile the using requirements of drivers of different heights for the motorcycle are met.

Description

Technical Field

[0001] The invention relates to the field of vehicle engineering, in particular to a motorcycle. Background Art

[0002] A motorcycle is a two-wheeled or three-wheeled vehicle driven by a gasoline engine and steered by a handlebar. It is light, flexible and fast, and is widely used for patrolling, passenger and cargo transportation, etc., and is also used as sports equipment.

[0003] Especially for off-road motorcycles, because they need to meet more complex environments, they are generally larger in size and heavier in weight. Because they often need to support the ground with their legs or control the center of gravity of the vehicle during riding, it is more difficult for some shorter drivers to support the off-road motorcycle. Therefore, off-road motorcycles are more difficult for such people to operate, and the human-computer interaction experience is not good. Summary of the invention

[0004] In order to solve the deficiencies of the prior art, an object of the present invention is to provide a motorcycle with better human-machine coordination.

[0005] To achieve the above object, the present invention adopts the following technical solution:

[0006] A motorcycle comprises a frame, a body covering, a running assembly and a power system, wherein the frame comprises a main frame arranged at a front end and a sub-frame arranged behind the main frame, wherein the main frame is fixedly connected to the sub-frame; the body covering comprises a seat cushion at least partially arranged on the frame; the running assembly is connected to the frame, and the running assembly comprises a front wheel and a rear wheel; the power system is transmission-connected to the running assembly; the seat cushion is at least partially arranged on the sub-frame, and the seat cushion is also at least partially arranged above the main frame; the seat cushion comprises a recessed portion for a driver to sit on, a line connecting the axle centers of the front wheel and the axle centers of the rear wheel is defined as the wheel axis of the motorcycle, a distance between the lowest point of the recessed portion and the wheel axis is defined as the seat cushion height of the motorcycle, and a ratio between the seat cushion height and the length of the wheel axis is greater than or equal to 0.26 and less than or equal to 0.4.

[0007] Further, a ratio between the seat cushion height and the length of the wheel axis is greater than or equal to 0.3 and less than or equal to 0.36.

[0008] Furthermore, the frame includes a head tube, the distance between the lowest point of the head tube and the wheel axis is defined as the head tube height, and the ratio between the head tube height and the wheel axis length is greater than or equal to 0.35 and less than or equal to 0.55.

[0009] Furthermore, the motorcycle also includes a fuel tank, which is at least partially arranged on the main frame, and the seat cushion is at least partially arranged on the fuel tank. When viewed from the height direction of the motorcycle, the main frame, the seat cushion and the fuel tank are arranged to at least partially overlap.

[0010] Furthermore, the sub-frame includes an upper bracket for supporting a seat cushion, the upper bracket includes two upper connection points for connecting to the main frame, and the width between the two upper connection points is defined as a first width; the upper bracket also includes a riding portion, and the width of the riding portion distributed in the width direction of the motorcycle is defined as a second width; the ratio between the second width and the first width can be set to be greater than or equal to 0.7 and less than or equal to 1.

[0011] Further, the recessed portion is at least partially arranged above the straddling portion, and the widths of the straddling portion and the recessed portion in the width direction of the motorcycle are arranged to be substantially consistent.

[0012] Furthermore, the main frame includes an upper main pipe, the sub-frame includes an upper bracket, a longitudinal plane perpendicular to the width direction of the motorcycle is defined, and a first straight line and a second straight line are defined, the projection of the axis of the upper main pipe along the width direction of the motorcycle on the longitudinal plane basically extends along the first straight line, the projection of the axis of the upper bracket along the width direction of the motorcycle on the longitudinal plane basically extends along the second straight line, and the angle between the first straight line and the second straight line is greater than or equal to 100° and less than or equal to 150°.

[0013] Furthermore, the subframe also includes a lower bracket, a reinforcing rod is arranged between the lower bracket and the upper bracket, and the body cover is at least partially arranged on the inner side of the reinforcing rod. When viewed from the height direction of the motorcycle, the upper bracket, the lower bracket and the body cover are arranged to at least partially overlap.

[0014] Furthermore, a limiting member for supporting the seat cushion is arranged on the main frame, the limiting member is basically arranged on the straddling part, and an air filter assembly is also arranged below the limiting member.

[0015] Furthermore, a ratio between the head tube height and the wheel axis length is greater than or equal to 0.4 and less than or equal to 0.5.

[0016] The motorcycle of the present application has a large wheelbase of an off-road vehicle and, at the same time, has a lowered seat height through a frame structure, so that some drivers of short stature can put their legs on the ground when the vehicle is temporarily parked, while still being able to enjoy the fun of off-road riding, thereby meeting the needs of drivers of different heights for off-road motorcycle driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of a motorcycle in an embodiment of the present application;

[0018] Figure 2 A schematic diagram of a frame in an embodiment of the present application;

[0019] Figure 3 This is a schematic diagram of the connection between the seat cushion and the frame in the embodiment of the present application;

[0020] Figure 4 An exploded view of a fuel tank and a vehicle body covering member in an embodiment of the present application;

[0021] Figure 5 A side view of a partial structure of a motorcycle in an embodiment of the present application;

[0022] Figure 6 This is an assembly diagram of the position limiting member in the implementation manner of the present application;

[0023] Figure 7 This is a schematic diagram of a position limiting member in an embodiment of the present application;

[0024] Figure 8 This is a schematic diagram of the connection of the air filter assembly in the embodiment of the present application;

[0025] Fig. 9 In the implementation mode of this application Figure 8 Enlarged view of point A. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the specific implementation modes of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the implementation modes of the present application.

[0027] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0028] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features.

[0029] This application provides Figure 1The motorcycle 100 shown includes a frame 11, a body covering 12, a suspension assembly 13, a traveling assembly 14 and a power system 15. The body covering 12 is at least partially disposed on the frame 11. The suspension assembly 13 is connected to the frame 11, and the traveling assembly 14 is connected to the frame 11 through the suspension assembly 13. The power system 15 is at least partially disposed on the frame 11, and the power system 15 is transmission-connected to the traveling assembly 14. The traveling assembly 14 includes a front wheel 141 disposed at the front end of the motorcycle 100 and a rear wheel 142 disposed at the rear end of the motorcycle 100. Specifically, the power system 15 is at least partially disposed in transmission connection with the rear wheel 142. It is also defined as follows: Figure 1 The front side, rear side, left side, right side, upper side and lower side shown are used as the front side, rear side, left side, right side, upper side and lower side of a motorcycle.

[0030] like Figure 2 As shown, as an implementation, the frame 11 is configured as a tubular frame that is substantially symmetrical left and right, and the frame 11 includes a main frame 111, a sub-frame 112, and an additional frame 113. The main frame 111 is disposed on the front side of the sub-frame 112 and is fixedly connected to the sub-frame 112. The additional frame 113 is at least partially disposed on the lower side of the main frame 111, and the additional frame 113 is configured to be detachably connected to the main frame 111.

[0031] like Figure 3 As shown, as an implementation, the motorcycle 100 further includes a fuel assembly 21, and the fuel assembly 21 includes a fuel tank 211 connected to the engine. The fuel tank 211 is at least partially disposed on the main frame 111, and the fuel tank 211 is fixedly connected to the main frame 111. The front portion of the seat cushion 121 extends toward the upper front of the motorcycle 100, and the front portion of the seat cushion 121 at least partially covers the surface of the fuel tank 211. Through the above arrangement, the contact area between the seat cushion 121 and the fuel tank 211 is increased, thereby reducing the pressure of the seat cushion 121 on the fuel tank 211, avoiding mutual compression between the seat cushion 121 and the fuel tank 211, thereby reducing the wear between the seat cushion 121 and the fuel tank 211, and extending the service life of the seat cushion 121.

[0032] Specifically, a reference plane 106 perpendicular to the height direction of the motorcycle 100 is defined, and the projection of the fuel tank 211 on the reference plane 106 along the height direction is defined as the fuel tank projection surface, and the projection of the seat cushion 121 on the reference plane 106 along the height direction is defined as the seat cushion projection surface. It can be understood that the fuel tank projection surface and the seat cushion projection surface at least partially overlap, and the size of the overlapping portion of the above two is defined as the first area S1, and the area of ​​the fuel tank projection surface is defined as the second area S2. As an optional implementation, the ratio between the first area S1 and the second area S2 is defined as greater than or equal to 0.12 and less than or equal to 0.18. Specifically, the ratio between the first area S1 and the second area S2 is defined as greater than or equal to 0.13 and less than or equal to 0.17. More preferably, the ratio between the first area S1 and the second area S2 is defined as equal to 0.15. It should be noted that the seat cushion 121 extending forward and upward and covering the fuel tank 211 can effectively reduce the wear between the seat cushion 121 and the fuel tank 211. However, if the ratio between the first area S1 and the second area S2 is too large, the cost of the seat cushion 121 will increase. In addition, since the outer shell of the fuel tank 211 is usually made of metal material, and the metal material has a high thermal conductivity. If the ratio between the first area S1 and the second area S2 is too small, the exposed area of ​​the outer shell of the fuel tank 211 will increase. Through the above-mentioned arrangement, while reducing the wear of the seat cushion 121, it is possible to avoid the excessive temperature of the outer shell of the fuel tank 211 in hot weather, which affects the driver's driving experience.

[0033] As an optional implementation, the first area S1 is limited to be greater than or equal to 165 cm 2 And less than or equal to 255cm 2 Specifically, the first area S1 is defined as being greater than or equal to 185 cm 2 And less than or equal to 230cm 2 More preferably, the first area S1 is defined as being equal to 210 cm 2 This prevents the first area S1 from being too small, which causes the seat cushion 121 to increase the pressure on the fuel tank 211, thereby preventing the seat cushion 121 from squeezing the fuel tank 211 and causing wear on both. If the first area S1 is too large, the cost of the seat cushion 121 will increase. The above arrangement prolongs the service life of the seat cushion 121 while ensuring the overall economy of the motorcycle 100.

[0034] Through the above arrangement, the sub-frame 112 and the fuel tank 211 jointly support the seat cushion 121 , thereby reducing the load of the sub-frame 112 and extending the service life of the sub-frame 112 .

[0035] The body cover 12 is at least partially disposed on the left and right sides of the fuel tank 211 and is fixedly connected to the fuel tank 211 by fasteners. It can be seen that the surface of the fuel tank 211 is set as a smooth plane or a curved surface, resulting in the phenomenon of warping at the connection position between the body cover 12 and the fuel tank 211 or at the edge of the body cover 12. In order to solve the above technical problems, the present application provides the following Figure 5 Fuel tank 211 is shown.

[0036] like Figure 4 As shown, as an implementation, the fuel tank 211 includes a first area 2111 outside the area covered by the body cover 12 and a second area 2112 covered by the body cover 12. A fixing portion 2113 is provided on the second area 2112. In addition to being fixedly connected to the main frame 111, the body cover 12 is also at least partially detachably connected to the fuel tank 211 through the fixing portion 2113. When the body cover 12 provided on the main frame 111 is in a connected state with the fuel tank 211, the part of the body cover 12 abuts against the fuel tank 211, thereby ensuring the tightness of the connection between the fuel tank 211 and the body cover 12, preventing the edge of the part of the body cover 12 from warping, and thus improving the overall aesthetics of the motorcycle 100.

[0037] Specifically, a longitudinal plane 101 perpendicular to the length direction of the motorcycle 100 is defined, and the fixing parts 2113 are substantially symmetrically distributed on the outer surface of the fuel tank 211 about the longitudinal plane 101. On either side of the left and right end surfaces of the fuel tank 211, the number of the fixing parts 2113 is set to be at least one.

[0038] Furthermore, the fixing portion 2113 is a groove body that is recessed into the interior of the fuel tank 211, and a mounting plane 2113a is formed in the fixing portion 2113, so that a fuel tank connector 2114 for connecting to the vehicle body cover 12 is provided on the fixing portion 2113, and the fuel tank connector 2114 is at least partially provided on the mounting plane 2113a. It can be understood that since the surface of the fuel tank 211 is substantially irregular in shape, the mounting plane 2113a is provided so that the fuel tank connector 2114 is fixed to the outer surface of the fuel tank 211.

[0039] Optionally, the fixing portion 2113 is a boss protruding toward the outside of the fuel tank 211 , and the fixing portion 2113 has a mounting plane 2113a that is substantially the same as that described above, so that a fuel tank connector 2114 for fixing the vehicle body cover 12 is provided on the fixing portion 2113 .

[0040] More specifically, the vehicle body panel 12 includes a mounting portion 123 . The mounting portion 123 is disposed on a side of the vehicle body panel 12 facing the fuel tank 211 . The vehicle body panel 12 is connected to the fuel tank 211 via the mounting portion 123 .

[0041] Through the above arrangement, the connection between the body cover 12 and the fuel tank 211 is made more stable, and the edge warping phenomenon at the joint between the body cover 12 and the fuel tank 211 is avoided, thereby improving the aesthetics of the motorcycle 100.

[0042] The fuel tank connector 2114 is a plastic part and has a through hole for matching the assembly portion 123, and the extension direction of the through hole is substantially parallel to the width direction of the motorcycle 100. When the body cover 12 is assembled with the fuel tank 211, the assembly portion 123 of the body cover 12 is aligned with the through hole of the fuel tank connector 2114, and the body cover 12 is translated in a direction close to the fuel tank 211 to the through hole of the assembly portion 123 penetrating the fuel tank connector 2114, so that the assembly portion 123 and the fuel tank connector 2114 are engaged.

[0043] It can be understood that when the vehicle body covering 12 and the fuel tank 211 are disassembled, the vehicle body covering 12 is translated in a direction away from the fuel tank 211 until the assembly portion 123 is separated from the fuel tank connector 2114 .

[0044] In this embodiment, the front and rear ends of the fuel tank 211 are respectively provided with mounting sheet metals 2115 for fixing the vehicle body cover 12, and the mounting sheet metals 2115 are half-ear sheet metals or "T-shaped" sheet metals.

[0045] like Figure 4 As shown, as an optional implementation, a receiving groove 2116 is further provided above the fixing portion 2113 and is recessed into the fuel tank 211, and the receiving groove 2116 extends substantially along the length direction of the motorcycle 100. The receiving groove 2116 is provided as a "U"-shaped groove, and the edge of the body cover 12 is embedded in the receiving groove 2116, which can effectively avoid the problem of the body cover 12 warping while limiting the height direction of the motorcycle 100.

[0046] Specifically, when the edge of the body cover 12 is at least partially disposed in the receiving groove 2116, the edge of the body cover 12 abuts against the receiving groove 2116, thereby reducing the installation gap between the body cover 12 and the fuel tank 211, thereby making the motorcycle 100 more beautiful.

[0047] It should be noted that the shape of the receiving groove 2116 is not limited to the aforementioned "U"-shaped groove, and any implementation method of embedding the edge of the body cover 12 into the receiving groove 2116 to prevent warping is within the scope of protection required by this application.

[0048] like Figure 5 As shown, specifically, the seat cushion 121 includes a recessed portion 1211 for the driver to sit on, and the recessed portion 1211 is arranged behind the fuel tank 211. When viewed from the width direction of the motorcycle 100, the recessed portion 1211 is defined as the area where the lowest point of the upper surface of the seat cushion 121 is located. It can be seen that the ground clearance heights of the front and rear ends of the seat cushion 121 are both set to be greater than the ground clearance height of the recessed portion 1211.

[0049] The motorcycle 100 provided in the present application is a vehicle that can be used by the driver for off-road riding. In order to facilitate the driver to maintain a standing riding posture when passing through complex terrain, the width of the straddling portion 1121b in the width direction is reduced as mentioned above. Observed from the height direction of the motorcycle 100, the recessed portion 1211 and the straddling portion 1121b at least partially overlap, and the widths of the recessed portion 1121 and the straddling portion 1121b in the width direction are substantially the same. This allows the driver to have a more comfortable driving experience when driving the motorcycle 100, avoids the excessive width of the seat cushion 121 affecting the driver's support of the motorcycle 100, and at the same time, the driver is more comfortable when supporting the motorcycle 100 when the vehicle is stationary.

[0050] like Figure 5 As shown, the distance between the lowest point where the recessed portion 1211 is located and the wheel axis is defined as the seat height of the motorcycle 100. As an optional implementation, the ratio between the seat height H1 and the length L1 of the wheel axis is defined as being greater than or equal to 0.26 and less than or equal to 0.4. Specifically, the ratio between the seat height H1 and the length L1 of the wheel axis is defined as being greater than or equal to 0.3 and less than or equal to 0.36. More preferably, the ratio between the seat height H1 and the length L1 of the wheel axis is defined as being equal to 0.33. It should be noted that since the present application involves a two-wheeled motorcycle 100 that combines off-road and travel operating scenarios, no matter which riding scenario is used, the height requirements for the entire vehicle are relatively high, so the height of the motorcycle 100 involved in the present application is relatively high relative to general models. Under this premise, if the ratio between the seat cushion height H1 and the length L1 of the wheel axis is too large, when the length L1 of the wheel axis remains unchanged, the recessed portion 1211 will be raised relative to the ground, which is not conducive to the driver's support of the motorcycle 100 when the vehicle is stationary, and is very unfriendly to drivers of smaller stature. Therefore, the above arrangement not only ensures riding comfort, but also meets the use requirements of drivers of different heights for the motorcycle 100 claimed in this application.

[0051] like Figure 5As shown, as another optional implementation, the distance between the lowest point of the head tube 1111 and the wheel axis is defined as the head tube height H2. The ratio between the head tube height H2 and the length L1 of the wheel axis is defined as greater than or equal to 0.35 and less than or equal to 0.55. Specifically, the ratio between the head tube height H2 and the length L1 of the wheel axis is defined as greater than or equal to 0.4 and less than or equal to 0.5. More preferably, the ratio between the head tube height H2 and the length L1 of the wheel axis is defined as equal to 0.45. It should be noted that, since about 60% of the driving scenarios of the motorcycle 100 proposed in this application are off-road, and under off-road conditions, standing riding is a very important riding state under off-road conditions, it is necessary to satisfy the driver's ability to switch different driving postures under this driving scenario. In the aforementioned scheme, under the premise of making corresponding designs for the height of the seat cushion 121 of drivers of different heights, if the ratio between the head tube height H2 and the length L1 of the wheel axis is too large, it will cause the driver's driving posture to be uncoordinated. If the ratio between the head tube height H2 and the wheel axis length L1 is too small, it is not conducive to the driver to stand and ride, and the handling of the motorcycle 100 will be reduced. In addition, since the motorcycle 100 proposed in the present application has a high body height, it also affects the stability of the motorcycle 100 at high speeds, posing a safety hazard to the use of the motorcycle in off-road scenes.

[0052] Through the above arrangement, the driver can change the riding posture more comfortably and can better control the direction of the motorcycle 100 when the driver stands and rides.

[0053] like Figure 6 and Figure 7 As shown, as an implementation, the frame 11 includes a stopper 117 for supporting the fuel tank 211, and the stopper 117 is detachably connected to the subframe 112. The fuel tank 211 is at least partially arranged above the stopper 117, and the fuel tank 211 is fixedly connected to the stopper 117 by a fastener. The stopper 117 is arranged below the seat cushion 121, and when the seat cushion 121 is connected to the frame 11, at least part of the seat cushion 121 abuts against the stopper 117. The power system 15 also includes an air filter assembly 153 connected to the engine, and the stopper 117 is at least partially arranged above the air filter assembly 153. When viewed from the height direction of the motorcycle 100, the fuel tank 211, the seat cushion 121, the stopper 117 and the air filter assembly 153 at least partially overlap. By providing a detachable stopper 117, it is avoided that the stopper 117 interferes with the air filter assembly 153 in the height direction, so that the maintenance of the air filter assembly 153 is more convenient.

[0054] like Figure 7 As shown, specifically, the limiting member 117 includes a seat cushion limiting portion 1171, and the lower side end surface of the seat cushion 121 is provided with (as shown in FIG. Figure 3When the seat cushion 121 is connected to the limiting member 117, the seat cushion limiting portions 1171 are respectively arranged on the left and right sides of the mounting portion 1212, and the seat cushion limiting portions 1171 are engaged with the mounting portion 1212. In this way, the sliding of the seat cushion 121 in the width direction is limited.

[0055] More preferably, a limiting groove 1172 is formed around the seat cushion limiting portion 1171. When the seat cushion 121 is connected to the limiting member 117, the mounting portion 1212 is at least partially disposed in the limiting groove 1172, and the mounting portion 1212 is engaged with the seat cushion limiting portion 1171. The seat cushion limiting portions 1171 on both sides of the mounting portion 1212 limit the sliding of the seat cushion 121 in the width direction.

[0056] Through the above arrangement, the wear of the connection between the seat cushion 121 and the fuel tank 211 can be reduced, thereby extending the service life of the seat cushion 121.

[0057] Furthermore, the width of the limiting groove 1172 extending along the width direction and the width of the mounting portion 1212 extending along the width direction are set to be substantially consistent.

[0058] More specifically, the stopper 117 further includes a reinforcing portion 1173 for limiting the forward and backward sliding of the seat cushion 121. The reinforcing portion 1173 is disposed at the rear end of the stopper 117 and is configured to extend upward so that the seat cushion 121 is configured to be in surface contact with the stopper 117. When the seat cushion 121 is at least partially disposed on the stopper 117, the seat cushion 121 abuts against the reinforcing portion 1173 of the stopper 117 along the length direction. This makes up for the strength of the stopper 117 and reduces the wear of the stopper 117 by the seat cushion 121.

[0059] like Figure 7 As shown, as an implementation method, the subframe 112 includes a sheet metal component 1124 for connecting the stopper 117, and the connection between the sheet metal component 1124 and the subframe 112 is set to be welded. Among them, the stopper 117 and the sheet metal component 1124 are detachably connected by fasteners. The sheet metal component 1124 is arranged on the inner side of the subframe 112, and the end face of the sheet metal component 1124 is tangent to the profile of the subframe 112. Thereby, the subframe 112 is prevented from being deformed by the pressure of the stopper 117, thereby extending the service life of the subframe 112. In addition, the above arrangement can meet the possibility of reducing the width of the recessed portion 1211 of the seat cushion 121 in the width direction to a certain extent, and avoid the sheet metal components 1124 distributed on the left and right having a large span in the width direction, resulting in an increase in the width of the seat cushion 121, thereby ensuring the riding comfort of the driver.

[0060] like Figure 8 and Fig. 9As shown, as an implementation method, when viewed from the height direction of the motorcycle 100, the air filter assembly 153 and the body cover 12 at least partially overlap. The air filter assembly 153 includes a first connection portion 1531 and a second connection portion 1532, and the air filter assembly 153 is fixedly connected to the engine through the first connection portion 1531. The body cover 12 arranged on the inner side of the subframe 112 is fixedly connected to the subframe 112, and the body cover 12 is also provided with an air filter mounting portion 124 extending to the inner side of the motorcycle 100, and the air filter assembly 153 is fixedly connected to the air filter mounting portion 124 through the second connection portion 1532. The air filter mounting portion 124 extends above the motorcycle 100 and is at least partially arranged above the subframe 112. Thereby, the sheet metal for fixing the air filter assembly 153 is avoided from being welded on the frame 11, the weld at the frame 11 is reduced, and the aesthetics of the frame 11 is improved.

[0061] Specifically, the first connection portion 1531 and the second connection portion 1532 each include a stack of connection points that are substantially symmetrical with respect to the longitudinal plane 101 , and the air filter mounting portion 124 is also symmetrically distributed with respect to the longitudinal plane 101 , thereby improving the stability of the air filter assembly 153 .

[0062] Further, the air filter mounting portion 124 is disposed on the inner side of the subframe 112, and the air filter mounting portion 124 includes an assembly plane 1241 substantially parallel to the second connection portion 1532. When the air filter assembly 153 is connected to the air filter mounting portion 124 via the second connection portion 1532, the fastener 1533 passes through the second connection portion 1532 and the assembly plane 1241 in sequence.

[0063] More specifically, a buffer mechanism 1534 is provided between the assembly plane 1241 and the second connection portion 1532, and the buffer mechanism 1534 is at least partially provided on the second connection portion 1532. Since the air filter mounting portion 124 is a plastic part, in order to avoid the wear of the fastener 1533 on the air filter mounting portion 124, an insert nut (not shown) for matching the fastener 1533 is provided in the assembly plane 1241.

[0064] Optionally, the body cover 12 covers the fuel tank 211 along the width direction of the motorcycle 100, and the air filter mounting portion 124 includes a groove 1242. In addition to being fixedly connected to the fuel tank 211, the body cover 12 covering the fuel tank 211 is also at least partially disposed in the groove 1242.

[0065] As an implementation method, a limiting structure (not shown) for fixing the vehicle-mounted tool is provided on the bottom surface of the seat cushion 121, and the limiting structure is integrally formed with the bottom surface of the seat cushion 121. The limiting structure is respectively defined as a first limiting structure and a second limiting structure according to the limiting method. When the vehicle-mounted tool is connected to the seat cushion 121 through the limiting structure, the first limiting structure can be engaged with the vehicle-mounted tool. Among them, the first limiting structure is set as a component with a certain deformation possibility, so as to improve the stability of the vehicle-mounted tool when connected to the seat cushion 121.

[0066] Specifically, when the vehicle-mounted tool is connected to the seat cushion 121, the second limiting structure is arranged at at least one end of the vehicle-mounted tool, and the vehicle-mounted tool abuts against the second limiting structure, thereby preventing the vehicle-mounted tool from slipping.

[0067] Through the above arrangement, the number of components for fixing the vehicle-mounted tool is reduced, and by providing a limiting structure integrated with the bottom surface of the seat cushion 121 , the slippage of the vehicle-mounted tool can be limited while preventing the vehicle-mounted tool from detaching from the seat cushion 121 .

[0068] In the description of the present application, it should be understood that the description “a component is located on the inner side of another component” means that one component is located on a side of another component away from the body cover or the outer surface of the motorcycle.

[0069] In the description of this application, it needs to be understood that the term "length direction" refers to the front-to-back direction parallel to the motorcycle driver's vehicle when the motorcycle driver is in the driving state, the term "width direction" refers to the left-to-right direction parallel to the motorcycle driver's vehicle when the motorcycle driver is in the driving state, and the term "height direction" refers to the up-and-down direction parallel to the motorcycle driver's vehicle when the motorcycle driver is in the driving state.

[0070] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A motorcycle, comprising: A vehicle frame, the vehicle frame comprising a main frame arranged at the front end and a sub-frame arranged at the rear of the main frame, the main frame being fixedly connected to the sub-frame; a body covering, the body covering comprising a seat cushion at least partially disposed on the frame; A traveling assembly, the traveling assembly being arranged below the frame and comprising a front wheel and a rear wheel; A power system, the power system is transmission-connected to the travel assembly; It is characterized in that the seat cushion is at least partially arranged on the sub-frame, and the seat cushion is also at least partially arranged above the main frame; the seat cushion includes a recessed portion for the driver to sit on, the line between the axis of the front wheel and the axis of the rear wheel is defined as the wheel axis of the motorcycle, the distance between the lowest point of the recessed portion and the wheel axis is defined as the seat cushion height of the motorcycle, and the ratio between the seat cushion height and the length of the wheel axis is greater than or equal to 0.26 and less than or equal to 0.

4.

2. The motorcycle according to claim 1, characterized in that: The ratio between the seat cushion height and the length of the wheel axis is greater than or equal to 0.3 and less than or equal to 0.

36.

3. The motorcycle according to claim 1, characterized in that: The frame includes a head tube, the distance between the lowest point of the head tube and the wheel axis is defined as the head tube height, and the ratio between the head tube height and the wheel axis length is greater than or equal to 0.35 and less than or equal to 0.

55.

4. The motorcycle according to claim 1, characterized in that: The motorcycle further comprises a fuel tank, which is at least partially arranged on the main frame, and the seat cushion is at least partially arranged on the fuel tank. When viewed from the height direction of the motorcycle, the main frame, the seat cushion and the fuel tank are arranged to at least partially overlap.

5. The motorcycle according to claim 1, characterized in that: The sub-frame includes an upper bracket for supporting the seat cushion, the upper bracket includes two upper connection points for connecting to the main frame, and the width between the two upper connection points is defined as a first width; the upper bracket also includes a riding portion, and the width of the riding portion distributed in the width direction of the motorcycle is defined as a second width; the ratio between the second width and the first width can be set to be greater than or equal to 0.7 and less than or equal to 1.

6. The motorcycle according to claim 5, characterized in that: The recessed portion is at least partially disposed above the straddling portion, and the straddling portion and the recessed portion have substantially the same width in the width direction of the motorcycle.

7. The motorcycle according to claim 1, characterized in that: The main frame includes an upper main pipe, and the subframe includes an upper bracket, defining a longitudinal plane perpendicular to the width direction of the motorcycle, and defining a first straight line and a second straight line, the projection of the axis of the upper main pipe along the width direction of the motorcycle on the longitudinal plane basically extends along the first straight line, the projection of the axis of the upper bracket along the width direction of the motorcycle on the longitudinal plane basically extends along the second straight line, and the angle between the first straight line and the second straight line is greater than or equal to 100° and less than or equal to 150°.

8. The motorcycle according to claim 5 or 7, characterized in that: The subframe also includes a lower bracket, a reinforcing rod is arranged between the lower bracket and the upper bracket, and the body cover is also at least partially arranged on the inner side of the reinforcing rod. When viewed from the height direction of the motorcycle, the upper bracket, the lower bracket and the body cover are arranged to at least partially overlap.

9. The motorcycle according to claim 5, characterized in that: The main frame is provided with a limiting member for supporting the seat cushion, the limiting member is basically arranged on the straddling part, and an air filter assembly is also arranged below the limiting member.

10. The motorcycle according to claim 1, characterized in that: The ratio between the head tube height and the wheel axis length is greater than or equal to 0.4 and less than or equal to 0.5.

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