Motorcycle

Abstract

The application discloses a motorcycle, which comprises a frame, a body cover, a walking assembly, a power system and a fuel assembly; the body cover comprises a seat cushion; the fuel assembly comprises a fuel tank; the frame comprises a main frame and a sub-frame; the fuel tank is arranged on the main frame basically; the seat cushion is arranged on the sub-frame basically and covers the fuel tank at least partially; the seat cushion and the fuel tank are arranged to overlap at least partially in the height direction of the motorcycle; on a horizontal plane perpendicular to the height direction of the motorcycle, the projection size of the overlapping part of the seat cushion and the fuel tank on the horizontal plane in the height direction is defined as a first area, the projection size of the fuel tank on the horizontal plane in the height direction is defined as a second area, and the ratio between the first area and the second area is greater than or equal to 0.12 and less than or equal to 0.18. Through the above arrangement, the sub-frame and the fuel tank support the seat cushion together, the load of the sub-frame is reduced, and the service life of the sub-frame is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of vehicle engineering, in particular to a motorcycle. BACKGROUND

[0002] Motorcycle, driven by gasoline engine, two or three wheeled vehicle, steering by handlebar, light and flexible, fast driving, widely used for patrol, passenger and freight transportation, etc., also used as sports equipment.

[0003] The seat cushion of the motorcycle is only supported by sheet metal at the front and rear ends of the auxiliary frame, especially the use environment of off-road motorcycle is generally more complex, if the vibration amplitude is large during vehicle driving, it will cause the load of the auxiliary frame to be too large, affecting the service life of the frame. In addition, the front end of the seat cushion generally abuts against the fuel tank, and in the daily driving process, the front end of the seat cushion will be worn with the edge of the fuel tank, causing the skin of the front end of the seat cushion to be damaged. SUMMARY

[0004] In order to solve the problems of the prior art, the purpose of the present application is to provide a motorcycle with longer service life of the seat cushion.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0006] A motorcycle, comprising a frame, a body covering, a walking assembly, a power system and a fuel assembly; the body covering comprises a seat cushion at least partially arranged on the frame; the walking assembly is connected with the frame; the power system is in transmission connection with the walking assembly; the fuel assembly comprises a fuel tank connected with the power system, and the fuel tank is at least partially arranged on the frame; the frame comprises a main frame arranged at the front and an auxiliary frame arranged at the rear end of the main frame, the fuel tank is substantially arranged on the main frame, and the seat cushion is substantially arranged on the auxiliary frame and at least partially covers the fuel tank, and the seat cushion and the fuel tank are arranged to at least partially overlap in the height direction of the motorcycle; on a horizontal plane perpendicular to the height direction of the motorcycle, the projection size of the overlapping part of the seat cushion and the fuel tank on the horizontal plane in the height direction is defined as a first area, the projection size of the fuel tank on the horizontal plane in the height direction is defined as a second area, and the ratio between the first area and the second area is greater than or equal to 0.12 and less than or equal to 0.18.

[0007] Further, the first area is greater than or equal to 165cm 2 and less than or equal to 255cm 2 .

[0008] Further, the seat cushion comprises a recess for sitting, and the recess is at least partially arranged between the fuel tank and the auxiliary frame.

[0009] Further, the walking assembly comprises a front wheel and a rear wheel, a line between the axis of the front wheel and the axis of the rear wheel defines a wheel axis of the motorcycle, a distance between the lowest point of the recess and the wheel axis defines a seat cushion height of the motorcycle, 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.

[0010] Further, the frame comprises a sub-frame for supporting the seat cushion, a front end of the sub-frame is provided with a straddle part, the recess and the straddle part at least partially overlap in a height direction of the motorcycle, and the width of the recess and the width of the straddle part in a width direction are substantially consistent.

[0011] Further, the frame further comprises a limiting piece for supporting the seat cushion, the limiting piece is detachably connected with the sub-frame, and the seat cushion is arranged to abut against the limiting piece.

[0012] Further, a lower side end surface of the seat cushion is provided with a mounting part, the limiting piece comprises a seat cushion limiting part for limiting the left and right sliding of the seat cushion, the seat cushion limiting part is arranged on the left and right sides of the mounting part respectively when the seat cushion is connected with the limiting piece, and the seat cushion limiting part is clamped with the mounting part.

[0013] Further, the power system further comprises an air filter assembly, and the seat cushion, the limiting piece and the air filter assembly at least partially overlap in the height direction of the motorcycle.

[0014] Further, the body cover is at least partially arranged on the fuel tank, the fuel tank comprises a fixing part arranged on the outer surface thereof, the fuel tank and the body cover are connected through a clamping piece, the clamping piece is fixedly connected to the fixing part, and the fixing part comprises a mounting plane for arranging the fixing part.

[0015] Further, the fixing part is arranged as a groove recessed towards the inside of the fuel tank, or the fixing part is arranged as a protrusion extending towards the outside of the fuel tank.

[0016] The mounting form of the seat cushion of the motorcycle can reduce the load on the sub-frame and prolong the service life of the sub-frame. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a schematic view of a motorcycle according to an embodiment of the present application;

[0018] Figure 2 FIG. 2 is a schematic view of a frame according to an embodiment of the present application;

[0019] Figure 3 FIG. 3 is a schematic view of the connection between a seat cushion and a frame according to an embodiment of the present application;

[0020] Figure 4 FIG. 4 is an exploded view of a fuel tank and a body cover according to an embodiment of the present application;

[0021] Figure 5 is a side view of a motorcycle part structure in the embodiment of the present application;

[0022] Figure 6 is an assembly view of a limiting member in the embodiment of the present application;

[0023] Figure 7 is a schematic view of a limiting member in the embodiment of the present application;

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

[0025] Figure 9 is an enlarged view of A in the embodiment of the present application. Figure 8 DETAILED DESCRIPTION

[0026] In order to make the personnel in the art better understand the present application, the technical solutions in the specific embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application.

[0027] In order to make the personnel in the art better understand the present application, the technical solutions in the specific embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application.

[0028] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can be present. The terms "vertical", "horizontal", "left", "right", and the like as used herein are used for illustration only and are not intended to be limiting.

[0029] In the description of the present application, it should be understood that the terms "first", "second", etc. are used only for the purpose of description and are not to be interpreted as indicating or implying relative importance or a specific number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features.

[0030] The present application provides a method for manufacturing a motorcycle part structure as shown in the accompanying drawings. Figure 1 ​The motorcycle 100 shown includes a frame 11, a body panel 12, a suspension assembly 13, a running gear 14, and a power system 15. The body panel 12 is at least partially mounted on the frame 11. The suspension assembly 13 is connected to the frame 11, and the running gear 14 is connected to the frame 11 via the suspension assembly 13. The power system 15 is at least partially mounted on the frame 11 and is drive-driven to the running gear 14. The running gear 14 includes a front wheel 141 located at the front end of the motorcycle 100 and a rear wheel 142 located at the rear end of the motorcycle 100; specifically, the power system 15 is at least partially drive-driven to the rear wheel 142. Also defined are... Figure 1 The front, rear, left, right, top, and bottom sides are shown as the front, rear, left, right, top, and bottom sides of the motorcycle.

[0031] like Figure 2 As shown, in one implementation, the frame 11 is configured as a tubular structure that is substantially symmetrical from left to right. The frame 11 includes a main frame 111, a subframe 112, and an auxiliary frame 113. The main frame 111 is located on the front side of the subframe 112 and is fixedly connected to the subframe 112. The auxiliary frame 113 is at least partially located on the lower side of the main frame 111, and the auxiliary frame 113 is detachably connected to the main frame 111.

[0032] like Figure 3 As shown, in one implementation, the motorcycle 100 also includes a fuel assembly 21, which includes a fuel tank 211 connected to the engine. The fuel tank 211 is at least partially mounted on the main frame 111 and is fixedly connected to the main frame 111. The front portion of the seat 121 extends forward and upward toward the motorcycle 100, and the front portion of the seat 121 at least partially covers the surface of the fuel tank 211. This arrangement increases the contact area between the seat 121 and the fuel tank 211, thereby reducing the pressure of the seat 121 on the fuel tank 211, preventing the seat 121 and the fuel tank 211 from squeezing against each other, thus reducing wear between the seat 121 and the fuel tank 211 and extending the service life of the seat 121.

[0033] Specifically, a reference plane 106 perpendicular to the height direction of the motorcycle 100 is defined, and a projection of the fuel tank 211 on the reference plane 106 in the height direction is defined as a fuel tank projection plane, and a projection of the seat cushion 121 on the reference plane 106 in the height direction is defined as a seat cushion projection plane. It can be understood that the fuel tank projection plane and the seat cushion projection plane at least partially overlap, and the size of the overlapping part of the above two is defined as a first area S1, and the area of the fuel tank projection plane is defined as a second area S2. As an optional implementation, the ratio between the first area S1 and the second area S2 is defined to be 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 to be 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 to be equal to 0.15. It should be noted that by setting the seat cushion 121 extending upward and covering the fuel tank 211, the wear between the seat cushion 121 and the fuel tank 211 can be effectively reduced, but 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 high thermal conductivity. If the ratio between the first area S1 and the second area S2 is too small, it will increase the exposed area of the outer shell of the fuel tank 211. Through the above setting, the wear of the seat cushion 121 can be reduced while avoiding the temperature of the outer shell of the fuel tank 211 being too high in hot weather to affect the driving experience of the driver.

[0034] As an optional implementation, the first area S1 is defined to be greater than or equal to 165cm 2 and less than or equal to 255cm 2 . Specifically, the first area S1 is defined to be greater than or equal to 185cm 2 and less than or equal to 230cm 2 . More preferably, the first area S1 is defined to be equal to 210cm 2 . Thus, preventing the first area S1 from being too small to increase the pressure of the seat cushion 121 on the fuel tank 211, thereby avoiding the extrusion of the seat cushion 121 on the fuel tank 211 causing wear. If the first area S1 is too large, the cost of the seat cushion 121 will increase. The above setting ensures the overall economy of the motorcycle 100 while prolonging the service life of the seat cushion 121.

[0035] Through the above setting, the subframe 112 and the fuel tank 211 jointly support the seat cushion 121, reducing the load of the subframe 112 and prolonging the service life of the subframe 112.

[0036] The vehicle body cover 12 is arranged at least partially on both sides of the fuel tank 211 and is fixedly connected to the fuel tank 211 by fasteners. As can be seen, the surface of the fuel tank 211 is arranged as a smooth plane or curved surface, which causes the connection position of the vehicle body cover 12 and the fuel tank 211, or the edge of the vehicle body cover 12 to be warped. In order to solve the above technical problems, the present application provides a fuel tank 211 as shown in Figure 5

[0037] As shown in Figure 4 As an implementation manner, the fuel tank 211 includes a first area 2111 outside the covering area of the vehicle body cover 12 and a second area 2112 covered by the vehicle body cover 12. The second area 2112 is provided with a fixing portion 2113. In addition to being fixedly connected to the main frame 111, the vehicle body cover 12 is also detachably connected to the fuel tank 211 at least partially through the fixing portion 2113, and when the vehicle body cover 12 arranged on the main frame 111 is in a connected state with the fuel tank 211, the part of the vehicle body cover 12 abuts against the fuel tank 211, thereby ensuring the tightness of the connection between the fuel tank 211 and the vehicle body cover 12, avoiding the edge of the part of the vehicle body cover 12 from being warped, and further improving the overall aesthetics of the motorcycle 100.

[0038] Specifically, a longitudinal plane 101 perpendicular to the length direction of the motorcycle 100 is defined, and the fixing portions 2113 are substantially symmetrically distributed on the outer surface of the fuel tank 211 with respect to the longitudinal plane 101. On any one side of the left and right side end surfaces of the fuel tank 211, the number of the fixing portions 2113 is at least one.

[0039] Further, the fixing portion 2113 is a groove recessed towards the inside of the fuel tank 211, and an installation plane 2113a is formed in the fixing portion 2113, so as to facilitate the arrangement of a fuel tank connecting piece 2114 for connecting the vehicle body cover 12 on the fixing portion 2113, and the fuel tank connecting piece 2114 is arranged at least partially on the installation plane 2113a. As can be understood, since the surface of the fuel tank 211 is substantially irregularly shaped, the installation plane 2113a is arranged to facilitate the fixing of the fuel tank connecting piece 2114 on the outer surface of the fuel tank 211.

[0040] Optionally, the fixing portion 2113 is a boss protruding towards the outside of the fuel tank 211, and the fixing portion 2113 has a substantially same installation plane 2113a as described above, so as to facilitate the arrangement of a fuel tank connecting piece 2114 for fixing the vehicle body cover 12 on the fixing portion 2113.

[0041] ​More specifically, the body panel 12 includes an assembly part 123, which is disposed on the side of the body panel 12 facing the fuel tank 211, and the body panel 12 is connected to the fuel tank 211 through the assembly part 123.

[0042] The above settings make the connection between the body panel 12 and the fuel tank 211 more stable, and prevent the seam between the body panel 12 and the fuel tank 211 from warping, thereby improving the aesthetics of the motorcycle 100.

[0043] The fuel tank connector 2114 is made of plastic and has a through hole for mating with the mounting part 123. The extension direction of the through hole is substantially parallel to the width direction of the motorcycle 100. When the body panel 12 is assembled with the fuel tank 211, the mounting part 123 of the body panel 12 is aligned with the through hole of the fuel tank connector 2114, and the body panel 12 is moved in a direction close to the fuel tank 211 until the mounting part 123 passes through the through hole of the fuel tank connector 2114, so that the mounting part 123 and the fuel tank connector 2114 engage.

[0044] Understandably, when the body panel 12 is removed from the fuel tank 211, the body panel 12 is moved away from the fuel tank 211 until the assembly part 123 is disengaged from the fuel tank connector 2114.

[0045] In this embodiment, the fuel tank 211 is provided with mounting sheet metal 2115 for fixing the body panel 12 at both the front and rear ends, and the mounting sheet metal 2115 is a half-ear type sheet metal or a "T-shaped" sheet metal.

[0046] like Figure 4 As shown, as an optional implementation, a receiving groove 2116 recessed into the fuel tank 211 is also provided above the fixing part 2113, and the receiving groove 2116 extends substantially along the length direction of the motorcycle 100. The receiving groove 2116 is configured as a "U"-shaped groove, and the edge of the body cover 12 is embedded in the receiving groove 2116. While limiting the height of the body cover 12 in the motorcycle 100, it can also effectively prevent the problem of the edge of the body cover 12 warping.

[0047] Specifically, when the edge of the body cover 12 is at least partially located within 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, and thus making the motorcycle 100 more aesthetically pleasing.

[0048] It should be noted that the shape of the receiving groove 2116 is not limited to the aforementioned "U" shaped groove. Any implementation method that prevents the edge from warping by embedding the edge of the body cover 12 into the receiving groove 2116 is within the scope of protection claimed in this application.

[0049] As shown in Figure 5 particular, the seat cushion 121 includes a recessed portion 1211 for the driver to sit on, which is arranged at the rear of the fuel tank 211. The recessed portion 1211 is defined as the region where the lowest point of the upper surface of the seat cushion 121 is located, as viewed in the width direction of the motorcycle 100. It can be seen that the ground clearance of both the front and rear ends of the seat cushion 121 is set to be greater than the ground clearance of the recessed portion 1211.

[0050] The motorcycle 100 provided by the present application is a model that can be ridden off-road by the driver. In order to facilitate the driver to maintain a standing riding posture when passing through complex terrain, the width of the straddle portion 1121b in the width direction is reduced as described above. As viewed in the height direction of the motorcycle 100, the recessed portion 1211 and the straddle portion 1121b at least partially overlap, and the widths of the recessed portion 1211 and the straddle 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, and avoids the width of the seat cushion 121 affecting the driver's support of the motorcycle 100, while also making the driver more comfortable when supporting the motorcycle 100 in a stationary state.

[0051] As shown in Figure 5 the distance between the lowest point where the recessed portion 1211 is located and the wheel axis is defined as the seat cushion height of the motorcycle 100. As an optional implementation, the ratio between the seat cushion height H1 and the length L1 of the wheel axis is defined to be greater than or equal to 0.26 and less than or equal to 0.4. In particular, the ratio between the seat cushion height H1 and the length L1 of the wheel axis is defined to be greater than or equal to 0.3 and less than or equal to 0.36. More preferably, the ratio between the seat cushion height H1 and the length L1 of the wheel axis is defined to be equal to 0.33. It should be noted that the present application relates to a two-wheeled motorcycle 100 that combines off-road and travel working conditions, but regardless of any one of the riding scenarios, the overall height requirement is relatively high, so the height of the motorcycle 100 involved in the present application is relatively high compared 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, and the length L1 of the wheel axis remains unchanged, it will result in the recessed portion 1211 being elevated relative to the ground, which is not conducive to the driver's support of the motorcycle 100 in a stationary state, and is therefore not friendly to drivers of smaller stature. Therefore, the above setting not only satisfies the riding comfort, but also meets the use requirements of drivers of different heights for the motorcycle 100 claimed in the present application.

[0052] As shown in Figure 5As another optional implementation, as shown, 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 to be 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 to be 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 to be equal to 0.45. It should be noted that about 60% of the driving scenarios of the motorcycle 100 proposed in the present application are off-road, and standing riding is an important riding state in off-road working conditions. Therefore, it is necessary to meet the requirement that the driver can switch different driving postures in this driving scenario. In the foregoing scheme, under the premise that the seat cushion 121 height of different height drivers is designed accordingly, 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 inconsistent. If the ratio between the head tube height H2 and the length L1 of the wheel axis is too small, it is not conducive to the driver's standing riding, and it will also reduce the maneuverability of the motorcycle 100. In addition, since the body height of the motorcycle 100 proposed in the present application is relatively high, it will affect the stability of the motorcycle 100 during high-speed driving, and cause safety hazards in off-road scenarios.

[0053] Through the above setting, the driver can change the riding posture more comfortably, and can better control the direction of the motorcycle 100 when standing riding.

[0054] As shown in Figure 6 and Figure 7 As an implementation, as shown, the frame 11 includes a limiting piece 117 for supporting the fuel tank 211, and the limiting piece 117 is detachably connected with the auxiliary frame 112. The fuel tank 211 is at least partially arranged above the limiting piece 117, and the fuel tank 211 is fixedly connected with the limiting piece 117 through fasteners. The limiting piece 117 is arranged below the seat cushion 121, and at least part of the seat cushion 121 abuts against the limiting piece 117 when the seat cushion 121 is connected with the frame 11. The power system 15 further includes an air filter assembly 153 connected with the engine, and the limiting piece 117 is at least partially arranged above the air filter assembly 153. From the height direction of the motorcycle 100, the fuel tank 211, the seat cushion 121, the limiting piece 117 and the air filter assembly 153 at least partially overlap. By arranging the detachable limiting piece 117, interference of the limiting piece 117 with the air filter assembly 153 in the height direction is avoided, so that maintenance of the air filter assembly 153 is more convenient.

[0055] As shown in Figure 7 Specifically, as shown in Figure 3The mounting portion 1212 (as shown) is used. When the seat cushion 121 is connected to the limiting member 117, the seat cushion limiting portions 1171 are respectively provided 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. This restricts the sliding of the seat cushion 121 in the width direction.

[0056] More preferably, a limiting groove 1172 is formed around the seat cushion limiting part 1171. When the seat cushion 121 is connected to the limiting member 117, the mounting part 1212 is at least partially disposed in the limiting groove 1172, and the mounting part 1212 is engaged with the seat cushion limiting part 1171. The seat cushion 121 is restricted from sliding in the width direction by the seat cushion limiting parts 1171 on both sides of the mounting part 1212.

[0057] The above-mentioned design can reduce wear at the connection between the seat cushion 121 and the fuel tank 211, thereby extending the service life of the seat cushion 121.

[0058] Furthermore, the width of the limiting groove 1172 extending in the width direction and the width of the mounting part 1212 extending in the width direction are set to be basically the same.

[0059] More specifically, the limiting member 117 also 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 limiting member 117 and is configured to extend upward so that the seat cushion 121 and the limiting member 117 are in surface contact. When the seat cushion 121 is at least partially disposed on the limiting member 117, the seat cushion 121 abuts against the reinforcing portion 1173 of the limiting member 117 along its length. This supplements the strength of the limiting member 117 and reduces wear on the limiting member 117 caused by the seat cushion 121.

[0060] like Figure 7 As shown, in one implementation, the subframe 112 includes a sheet metal member 1124 for connecting the limiting member 117, and the connection between the sheet metal member 1124 and the subframe 112 is welded. The limiting member 117 and the sheet metal member 1124 are detachably connected by fasteners. The sheet metal member 1124 is disposed on the inner side of the subframe 112, and its end face is tangent to the contour of the subframe 112. This prevents the subframe 112 from being deformed by the limiting member 117, thereby extending the service life of the subframe 112. Furthermore, the above arrangement, to a certain extent, allows for a reduction in the width of the recess 1211 of the seat cushion 121 in the width direction, preventing the span of the left and right distributed sheet metal members 1124 from becoming too large in the width direction, which would increase the width of the seat cushion 121 and ensure the rider's riding comfort.

[0061] like Figure 8 and Figure 9As shown, as an implementation, the air cleaner assembly 153 and the body cover 12 at least partially overlap in the height direction of the motorcycle 100. The air cleaner assembly 153 includes a first connecting portion 1531 and a second connecting portion 1532, and the air cleaner assembly 153 is fixedly connected with the engine through the first connecting portion 1531. The body cover 12 disposed on the inner side of the auxiliary frame 112 is fixedly connected with the auxiliary frame 112, and the body cover 12 is further provided with an air cleaner mounting portion 124 extending to the inner side of the motorcycle 100, and the air cleaner assembly 153 is fixedly connected with the air cleaner mounting portion 124 through the second connecting portion 1532. The air cleaner mounting portion 124 extends to the upper side of the motorcycle 100 and is at least partially disposed above the auxiliary frame 112. Thus, the metal plate for fixing the air cleaner assembly 153 is avoided to be welded on the frame 11, the welds at the frame 11 are reduced, and the appearance of the frame 11 is improved.

[0062] Specifically, the first connecting portion 1531 and the second connecting portion 1532 each include a plurality of connecting points substantially symmetrical with respect to the longitudinal plane 101, and the air cleaner mounting portion 124 is also symmetrically distributed with respect to the longitudinal plane 101, thereby improving the stability of the air cleaner assembly 153.

[0063] Further, the air cleaner mounting portion 124 is disposed on the inner side of the auxiliary frame 112, and the air cleaner mounting portion 124 includes an assembly plane 1241 substantially parallel to the second connecting portion 1532. When the air cleaner assembly 153 is connected with the air cleaner mounting portion 124 through the second connecting portion 1532, the fastener 1533 sequentially passes through the second connecting portion 1532 and the assembly plane 1241.

[0064] More specifically, a buffer mechanism 1534 is disposed between the assembly plane 1241 and the second connecting portion 1532, and the buffer mechanism 1534 is at least partially disposed on the second connecting portion 1532. Since the air cleaner mounting portion 124 is a plastic part, in order to avoid the wear of the air cleaner mounting portion 124 by the fastener 1533, an insert nut (not shown) for cooperating with the fastener 1533 is disposed in the assembly plane 1241.

[0065] Optionally, the body cover 12 covers the fuel tank 211 in the width direction of the motorcycle 100, and the air cleaner mounting portion 124 includes a groove 1242, and the body cover 12 covering the fuel tank 211 is at least partially disposed in the groove 1242 in addition to being fixedly connected with the fuel tank 211.

[0066] As an implementation manner, the bottom surface of the seat cushion 121 is provided with a limiting structure (not shown in the figure) for fixing the vehicle tool, 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 in a limiting manner. When the vehicle tool is connected with the seat cushion 121 through the limiting structure, the first limiting structure can be clamped with the vehicle tool. The first limiting structure is provided as a component with a certain deformation possibility, thereby improving the stability when the vehicle tool is connected with the seat cushion 121.

[0067] Specifically, when the vehicle tool is connected with the seat cushion 121, the second limiting structure is arranged at least one end of the vehicle tool, and the vehicle tool abuts against the second limiting structure. Thus, the vehicle tool is prevented from slipping through the second limiting structure.

[0068] Through the above arrangement, the number of parts for fixing the vehicle tool is reduced. By arranging the limiting structure integrally with the bottom surface of the seat cushion 121, the slipping of the vehicle tool is limited under the premise of avoiding the vehicle tool from being separated from the seat cushion 121.

[0069] In the description of the present application, it should be understood that the description "one component is located on the inner side of another component" means that one component is located on the side of another component away from the vehicle body covering or away from the outer surface of the motorcycle.

[0070] In the description of the present application, it should be understood that the term "length direction" refers to the front-rear direction of the vehicle parallel to the motorcycle driver in the driving state, the term "width direction" refers to the left-right direction of the vehicle parallel to the motorcycle driver in the driving state, and the term "height direction" refers to the up-down direction of the vehicle parallel to the motorcycle driver in the driving state.

[0071] It should be understood that, for those skilled in the art, modifications or changes can be made according to the above description, and all these modifications and changes shall belong to the protection scope of the appended claims of the present application.

Claims

1. A motorcycle, comprising: a frame; a body cover including a seat cushion arranged at least partially on the frame; a running assembly arranged below the frame; a power system in driving connection with the running assembly; a fuel assembly including a fuel tank connected with the power system, the fuel tank being arranged at least partially on the frame; characterized in that the frame includes a main frame arranged at a front end and a sub-frame arranged at a rear end of the main frame, the fuel tank is arranged substantially on the main frame, the seat cushion is arranged substantially on the sub-frame and covers at least partially the fuel tank, the seat cushion and the fuel tank are arranged to overlap at least partially in a height direction of the motorcycle, the body cover is arranged at least partially on the fuel tank, the fuel tank includes a fixing portion arranged on an outer surface thereof, the fuel tank and the body cover are connected through a clamping member, the clamping member is fixedly connected to the fixing portion, an accommodating groove recessed inwardly of the fuel tank is further arranged above the fixing portion, the accommodating groove extends substantially along a length direction of the motorcycle, and an edge of the body cover is arranged in the accommodating groove. 2.The motorcycle according to claim 1, characterized in that: a projection of an overlapping portion of the seat cushion and the fuel tank on a horizontal plane perpendicular to the height direction of the motorcycle in the height direction defines a first area, a projection of the fuel tank on the horizontal plane in the height direction defines a second area, and a ratio between the first area and the second area is greater than or equal to 0.12 and less than or equal to 0.

18. 3.The motorcycle according to claim 2, characterized in that: the first area is greater than or equal to 165 cm 2 and less than or equal to 255 cm 2. 4.The motorcycle according to claim 1, characterized in that: the seat cushion includes a recessed portion for sitting, and the recessed portion is arranged at least partially between the fuel tank and the sub-frame. 5.The motorcycle according to claim 4, characterized in that: the running assembly includes a front wheel and a rear wheel, a line connecting an axis of the front wheel and an axis of the rear wheel defines a wheel axis of the motorcycle, a distance between a lowest point of the recessed portion and the wheel axis defines a seat cushion height of the motorcycle, and a ratio between the seat cushion height and a length of the wheel axis is greater than or equal to 0.26 and less than or equal to 0.

4. 6.The motorcycle according to claim 4, characterized in that: the frame includes a sub-frame for supporting the seat cushion, a front end of the sub-frame is provided with a straddle portion, the recessed portion and the straddle portion at least partially overlap in the height direction of the motorcycle, and a width of the recessed portion and the straddle portion in a width direction is substantially uniform. 7.The motorcycle according to claim 6, characterized in that: the frame further includes a limiting member for supporting the seat cushion, the limiting member is arranged in detachable connection with the sub-frame, and the seat cushion is arranged in abutment with the limiting member.

8. The motorcycle of claim 7, wherein, the lower end surface of the seat cushion is provided with a mounting portion, the limiting member comprises a seat cushion limiting portion for limiting the left and right sliding of the seat cushion, and when the seat cushion is connected with the limiting member, the seat cushion limiting portions are respectively arranged on the left and right sides of the mounting portion, and the seat cushion limiting portions are clamped with the mounting portion.

9. The motorcycle of claim 7, wherein, the power system further comprises an air filter assembly, and from the height direction of the motorcycle, the seat cushion, the limiting member and the air filter assembly at least partially overlap.

10. The motorcycle of claim 1, wherein, the fixing portion comprises a mounting plane for arranging the clamping member; the fixing portion is arranged as a groove recessed to the inside of the fuel tank, or the fixing portion is arranged as a boss extending to the outside of the fuel tank.

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