Air inlet structure and motorcycle

Abstract

The utility model provides an air inlet structure and a motorcycle. The air inlet structure comprises a hard pipe, a first connecting pipe and a second connecting pipe. The hard tube is fixed on the frame side tube, the hard tube comprises a first section, a second section and a third section which are communicated in sequence, the first section is located on the inner side of the frame side tube, and the third section is located on the outer side of the frame side tube. One end of the first connecting pipe is communicated with the first section, and the other end is communicated with a frame main pipe. One end of the second connecting pipe is communicated with the third section, and the other end is communicated with a clutch. According to the air inlet structure, the hard pipe is fixed to the frame side pipe, the first connecting pipe and the second connecting pipe can be fixed and positioned, the mounting position precision of the first connecting pipe and the second connecting pipe is guaranteed, and the reliability of the air inlet structure is improved. In addition, the air inlet structure is communicated with the frame main pipe, a connector does not need to be arranged on the frame side pipe, the influence on the strength and rigidity of the frame side pipe is small, meanwhile, the occupied space of the outer side of the frame side pipe is small, and the practicability of the air inlet structure is improved.

Description

Technical Field

[0001] The utility model relates to the field of motorcycles, in particular to an air intake structure and a motorcycle. Background Art

[0002] At present, it is necessary to connect the clutch and the frame of a motorcycle through an air pipe. There are two common ways to connect the air pipes. The first is to use a long rubber air pipe. The two ends of the long rubber air pipe are respectively connected to the main pipe of the frame and the clutch. However, the length of the long rubber air pipe is too long, the accuracy of the middle position is poor, there is a problem of rubbing against the frame, and it is restricted by the production process of the long rubber air pipe. The second is to use a short rubber air pipe. The two ends of the short rubber air pipe are respectively connected to the side pipe of the frame and the clutch. However, the side pipe of the frame needs to be separately designed with a rubber pipe connector, which has a great impact on the strength and stiffness of the side pipe of the frame. At the same time, it occupies a large space in the left and right directions, which is not conducive to the inward contraction of the leg position of the whole vehicle. Summary of the Utility Model

[0003] Based on this, in view of the problems in the above two air pipe connection methods, it is necessary to provide an air intake structure and a motorcycle.

[0004] The technical solution is as follows:

[0005] On the one hand, an air intake structure is provided, which is applied to a motorcycle and includes:

[0006] A hard pipe, the hard pipe is fixed on the side pipe of the frame. The hard pipe includes a first section, a second section and a third section that are sequentially communicated. The first section is located inside the side pipe of the frame, and the third section is located outside the side pipe of the frame;

[0007] A first connecting pipe, one end of the first connecting pipe is communicated with the first section, and the other end is used for communicating with the main pipe of the frame;

[0008] A second connecting pipe, one end of the second connecting pipe is communicated with the third section, and the other end is used for communicating with the clutch.

[0009] The technical solution is further described below:

[0010] In one embodiment, the first section extends towards the direction close to the main pipe of the frame. The axis of the first section forms an angle with the axis of the second section. The third section extends towards the direction close to the clutch. The axis of the third section forms an angle with the axis of the second section.

[0011] In one embodiment, a first fixing portion is provided on the outer side wall of the second section close to the main pipe of the frame. The first fixing portion is used for fixedly connecting with the side pipe of the frame.

[0012] In one embodiment, a first limiting portion is provided on the outer sidewall of the first section, and the first limiting portion is used for corresponding limiting cooperation with the end face of the first connecting pipe when the first section extends into the first connecting pipe.

[0013] In one embodiment, a second fixing portion is provided on the outer sidewall of the third section, and the second fixing portion is used for fixedly connecting with the frame side pipe.

[0014] In one embodiment, a second limiting portion is provided on the outer sidewall of the third section, and a third limiting portion is provided at one end of the second connecting pipe away from the clutch. The third limiting portion is used for limiting cooperation with the second limiting portion when the third section extends into the second connecting pipe.

[0015] In one embodiment, the intake structure further includes a first locking member, and the first locking member is used for locking and cooperating the third section with the second connecting pipe when the third section extends into the second connecting pipe, so that the third section and the second connecting pipe are kept in sealed communication.

[0016] In one embodiment, one end of the third section close to the second connecting pipe is set as the first end, and one end of the second connecting pipe close to the third section is set as the second end. The first end and the second end are in sealed communication and are both set in a flat shape. The width of the first end is smaller than the height of the first end, and the width of the second end is smaller than the height of the second end.

[0017] In one embodiment, a third fixing portion is provided on the outer sidewall of the first connecting pipe, and the third fixing portion is used for fixedly connecting with the pedal structure on the frame side pipe.

[0018] On the other hand, a motorcycle is provided, including a frame side pipe, a frame main pipe, a clutch and the intake structure as described above. The intake structure is fixed on the frame side pipe and communicates the frame main pipe and the clutch.

[0019] Compared with the intake structure in the prior art, the intake structure in the present application has at least the following advantages: 1. The intake structure in the present application is assembled by a rigid pipe, a first connecting pipe and a second connecting pipe. The length of a single pipe is small, which is convenient for processing and production. 2. The rigid pipe is fixed on the side pipe of the frame, which can play a role in fixing and positioning the first connecting pipe and the second connecting pipe, ensure the installation position accuracy of the first connecting pipe and the second connecting pipe, and improve the reliability of the intake structure. 3. The intake structure is communicated with the main pipe of the frame, and there is no need to set a connector on the side pipe of the frame, which has little influence on the strength and stiffness of the side pipe of the frame. At the same time, the first section and the first connecting pipe are located inside the side pipe of the frame, occupying little space outside the side pipe of the frame, and improving the practicability of the intake structure. 4. The folding angle of the intake structure can be arranged at the connection between the first section and the second section, and at the connection between the second section and the third section, so that the number of folding angles on the first connecting pipe and the second connecting pipe is reduced, the design difficulty of the production mold for the first connecting pipe and the second connecting pipe is reduced, and the production process difficulty of the intake structure is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings forming a part of this application are used to provide a further understanding of the application. The schematic embodiments and descriptions thereof of the application are used to explain the application and do not constitute an improper limitation to the application.

[0021] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram after the intake structure of an embodiment is installed and communicated.

[0023] Figure 2 is Figure 1 The schematic structural diagram of the intake structure of after being fixedly connected to the pedal structure.

[0024] Figure 3 is Figure 2 The partial enlarged view of part A in.

[0025] Figure 4 is Figure 2 The partial enlarged view of part B in.

[0026] Description of the reference numerals:

[0027] 10. Intake structure; 100. Hard pipe; 110. First section; 120. Second section; 130. Third section; 131. First end; 140. First fixing part; 150. First limiting part; 160. Second fixing part; 170. Second limiting part; 200. First connecting pipe; 210. Third fixing part; 300. Second connecting pipe; 310. Third limiting part; 321. Second end; 400. First locking part; 20. Frame side tube; 30. Frame main tube; 40. Clutch; 50. Footrest structure. Detailed implementation manners

[0028] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0029] As Figure 1 shown, in one embodiment, a motorcycle is provided, including a frame side tube 20, a frame main tube 30, a clutch 40, and an intake structure 10. The intake structure 10 is fixed on the frame side tube 20 and communicates with the frame main tube 30 and the clutch 40. In this way, the clutch 40 can intake air through the intake structure 10 and the frame main tube 30, improving the practicality of the motorcycle.

[0030] Specifically in this embodiment, the intake structure 10 communicates with the air intake port on the clutch cover of the clutch 40. The air intake port is located on the side of the clutch cover close to the frame main tube 30 (i.e., on the front side of the clutch cover).

[0031] As Figure 1 shown, in one embodiment, an intake structure 10 is provided, including a hard pipe 100, a first connecting pipe 200, and a second connecting pipe 300. The hard pipe 100 is fixed on the frame side tube 20. The hard pipe 100 includes a first section 110, a second section 120, and a third section 130 that are sequentially connected. The first section 110 is located inside the frame side tube 20, and the third section 130 is located outside the frame side tube 20. One end of the first connecting pipe 200 communicates with the first section 110, and the other end is used to communicate with the frame main tube 30. One end of the second connecting pipe 300 communicates with the third section 130, and the other end is used to communicate with the clutch 40.

[0032] Compared with the intake structure in the prior art, the intake structure 10 in the present application has at least the following advantages: 1. The intake structure 10 in the present application is assembled by a hard pipe 100, a first connecting pipe 200 and a second connecting pipe 300. The length of a single pipe is small, which is convenient for processing and production. 2. The hard pipe 100 is fixed on the frame side pipe 20, which can play a role in fixing and positioning the first connecting pipe 200 and the second connecting pipe 300, ensuring the installation position accuracy of the first connecting pipe 200 and the second connecting pipe 300, and improving the reliability of the intake structure 10. 3. The intake structure 10 is communicated with the frame main pipe 30, and there is no need to set a connector on the frame side pipe 20, which has little influence on the strength and stiffness of the frame side pipe 20. At the same time, the first section 110 and the first connecting pipe 200 are located inside the frame side pipe 20, occupying little space outside the frame side pipe 20, and improving the practicability of the intake structure 10. 4. The folding angles of the intake structure 10 can be arranged at the connection between the first section 110 and the second section 120, and at the connection between the second section 120 and the third section 130, so that the number of folding angles on the first connecting pipe 200 and the second connecting pipe 300 is reduced, the design difficulty of the production molds for the first connecting pipe 200 and the second connecting pipe 300 is reduced, and the production process difficulty of the intake structure 10 is improved.

[0033] Wherein, the inner side of the frame side pipe 20 refers to the side of the frame side pipe 20 close to the frame main pipe 30 along the horizontal direction. The outer side of the frame side pipe 20 refers to the side of the frame side pipe 20 far from the frame main pipe 30 along the horizontal direction. Specifically in this embodiment, the motorcycle has two frame side pipes 20, and the area between the two frame side pipes 20 is the inner side of the frame side pipe 20, and the area outside the two frame side pipes 20 is the outer side of the frame side pipe 20.

[0034] Wherein, the hard pipe 100 can be installed on the frame side pipe 20 by means of clamping, screwing, bonding or other fixed connection methods. The first section 110 can be hermetically communicated with the first connecting pipe 200 by means of thread fitting, interference fit or other sealing connection methods. The third section 130 can be hermetically communicated with the second connecting pipe 300 by means of screwing, clamping, interference fit or other sealing connection structures.

[0035] As Figure 1 shown, specifically in this embodiment, the second section 120 is located above the frame side pipe 20. In this way, the frame side pipe 20 can play a supporting role for the hard pipe 100, improving the convenience of installing the intake structure 10. In other embodiments, the second section 120 can also be located below the frame side pipe 20.

[0036] As Figure 1As shown, optionally, the first section 110 extends towards the direction close to the frame main pipe 30, the axis of the first section 110 is arranged at an angle with the axis of the second section 120, the third section 130 extends towards the direction close to the clutch 40, and the axis of the third section 130 is arranged at an angle with the axis of the second section 120. In this way, the hard pipe 100 is in a Z shape, that is, the fold angle in the intake structure 10 is located on the hard pipe 100, so that the number of fold angles on the first connecting pipe 200 and the second connecting pipe 300 is reduced, the design difficulty of the production molds for the first connecting pipe 200 and the second connecting pipe 300 is reduced, and the production process difficulty of the intake structure 10 is improved.

[0037] Wherein, the included angle between the axis of the first section 110 and the axis of the second section 120, and the included angle between the axis of the third section 130 and the axis of the second section 120 can both be flexibly adjusted according to actual usage needs.

[0038] Specifically in this embodiment, both the first connecting pipe 200 and the second connecting pipe 300 can be set as rubber pipes, and the rubber pipes can be produced by ordinary injection molding. The hard pipe 100 can be set as a plastic pipe, and the plastic pipe is formed by blow molding.

[0039] Such as Figure 1 、 Figure 2 and Figure 3 As shown, in one embodiment, a first fixing portion 140 is provided on the outer side wall of the second section 120 close to the frame main pipe 30, and the first fixing portion 140 is used for fixedly connecting with the frame side pipe 20. In this way, the first fixing portion 140 is located in the fold angle area formed by the first section 110 and the second section 120, without occupying additional installation space, and improving the practicability of the intake structure 10.

[0040] Specifically in the embodiment, the first fixing portion 140 is set as a first mounting ear. The first mounting ear is integrally formed with the second section 120 and is fixed on the frame side pipe 20 by bolts.

[0041] Such as Figure 1 and Figure 3 As shown, optionally, a first limiting portion 150 is provided on the outer side wall of the first section 110, and the first limiting portion 150 is used for corresponding limiting cooperation with the end face of the first connecting pipe 200 when the first section 110 extends into the first connecting pipe 200. In this way, the first limiting portion 150 can play a limiting role, ensuring that the first section 110 can quickly and accurately extend into the first connecting pipe 200 by a first preset length, and further ensuring the sealing performance between the first section 110 and the first connecting pipe 200, and improving the convenience and reliability of the intake structure 10.

[0042] Among them, the first limiting part 150 can be set as a limiting seat, a limiting column, a limiting protrusion or other limiting structures. Specifically in this embodiment, the first limiting part 150 is set as a limiting ring, and the limiting ring is arranged along the circumferential direction of the first section 110.

[0043] As Figure 1 , Figure 2 and Figure 4 shown, in one embodiment, a second fixing part 160 is provided on the outer side wall of the third section 130, and the second fixing part 160 is used for fixedly connecting with the frame side tube 20. In this way, the third section 130 can be in close contact with the frame side tube 20 to reduce the space occupied outside the frame side tube 20 and improve the practicability of the air intake structure 10.

[0044] Specifically in this embodiment, the second fixing part 160 can be set as a second mounting ear, the second mounting ear is located above the third section 130 and is integrally formed with the third section 130, and the second mounting ear is fixed on the outer side wall of the frame side tube 20 through bolts.

[0045] As Figure 1 and Figure 4 shown, optionally, a second limiting part 170 is provided on the outer side wall of the third section 130, and a third limiting part 310 is provided at one end of the second connecting pipe 300 away from the clutch 40. The third limiting part 310 is used for limiting cooperation with the second limiting part 170 when the third section 130 extends into the second connecting pipe 300. In this way, the second limiting part 170 and the third limiting part 310 can cooperate to play a limiting role, ensuring that the third section 130 can quickly and accurately extend into the second connecting pipe 300 by a second preset length, and further ensuring the sealing performance between the third section 130 and the second connecting pipe 300, and improving the convenience and reliability of the air intake structure 10.

[0046] Among them, the second limiting part 170 can be set as a limiting seat, a limiting protrusion or other limiting structures. The third limiting part 310 can be correspondingly set as a limiting seat, a limiting groove or other limiting structures. The numbers of the second limiting part 170 and the third limiting part 310 can both be flexibly adjusted according to actual use requirements. Specifically in this embodiment, the second fixing part 160 is located on one side of the second limiting part 170 close to the second section 120. The second limiting part 170 is set as a limiting protrusion. The third limiting part 310 is set as a convex block, and a limiting groove corresponding to the limiting protrusion is provided on the side of the convex block away from the clutch 40. When the third section 130 extends into the second connecting pipe 300 by the second preset length, the limiting protrusion is in limiting cooperation with the inner wall of the limiting groove.

[0047] As Figure 1 and Figure 4As shown, optionally, the intake structure 10 further includes a first locking member 400. The first locking member 400 is configured to lock and cooperate with the third section 130 and the second connecting pipe 300 when the third section 130 extends into the second connecting pipe 300, so that the third section 130 and the second connecting pipe 300 maintain a sealed connection. In this way, the reliability of the intake structure 10 is improved.

[0048] Specifically, in this embodiment, an annular groove is provided on the outer sidewall of the end of the second connecting pipe 300 away from the clutch 40. The first locking member 400 is configured as a hoop. When the third section 130 extends into the second connecting pipe 300 by a second preset length, the hoop is installed in the annular groove to be able to seal and fix the end of the second connecting pipe 300 away from the clutch 40 to the outer sidewall of the third section 130.

[0049] As Figure 1 and Figure 4 shown, optionally, one end of the third section 130 close to the second connecting pipe 300 is set as the first end 131, and one end of the second connecting pipe 300 close to the third section 130 is set as the second end 321. The first end 131 and the second end 321 are in sealed communication and are both set to be flat. The width of the first end 131 is less than the height of the first end 131, and the width of the second end 321 is less than the height of the second end 321. In this way, the outer space of the frame side tube 20 occupied by the intake structure 10 can be further reduced, and the practicability of the intake structure 10 is improved.

[0050] As Figure 1 and Figure 3 shown, in one embodiment, a third fixing portion 210 is provided on the outer sidewall of the first connecting pipe 200. The third fixing portion 210 is used for fixedly connecting with the pedal structure 50 on the frame side tube 20. In this way, the pedal structure can play a role in fixing and positioning the first connecting pipe 200, ensuring the installation position accuracy of the first connecting pipe 200, and improving the reliability of the intake structure 10.

[0051] Among them, the third fixing portion 210 can be installed on the pedal structure 50 by means of snap connection, screw connection, bonding or other fixed connection methods. Specifically, in this embodiment, the third fixing portion 210 is provided with a slot extending in the horizontal direction, and the pedal structure 50 is provided with a tongue inserted and matched with the slot.

[0052] Specifically, in this embodiment, the frame includes a frame side tube 20 and a frame main tube 30.

[0053] In one embodiment, the footrest structure 50 includes a footrest bracket and a counterweight. The footrest bracket is mounted on the vehicle frame and is used to support the footrest. The counterweight is mounted on the footrest bracket and is used to adjust the vibration frequency on the footrest bracket. In this way, when the footrest structure 50 is in use, the counterweight can be mounted at the corresponding position of the footrest bracket according to the vibration distribution and frequency magnitude on the vehicle frame, so that the footrest bracket can adjust the vibration frequency transmitted from the vehicle frame and then transmit it to the footrest, ensuring that the vibration frequency at the footrest is within a comfortable range and improving the comfort of the vehicle.

[0054] Among them, the number, shape and material of the counterweight can all be flexibly adjusted according to actual usage needs. The counterweight can be mounted on the footrest bracket by screwing, clamping, banding, gluing or other connection methods.

[0055] Specifically in this embodiment, the counterweight is located at the bottom of the footrest bracket. In this way, the counterweight is hidden under the footrest bracket, ensuring that the counterweight will not interfere with surrounding components and improving the reliability of the footrest structure 50. In other embodiments, the counterweight can also be mounted on the side or other positions of the footrest bracket.

[0056] Further, the footrest bracket is provided with at least one fourth fixing portion, and each fourth fixing portion is arranged along the extending direction of the footrest bracket. The counterweight is at least one, and each counterweight can be selectively mounted on each fourth fixing portion. In this way, the mounting position and number of the counterweights can both be flexibly adjusted according to actual usage needs, ensuring that the vibration frequency at the footrest can be adjusted to a comfortable range and improving the reliability and practicality of the footrest structure 50.

[0057] It should be noted that no counterweight can be mounted at each fourth fixing portion, or one counterweight can be mounted, or multiple counterweights can be mounted. Specifically in this embodiment, the counterweight is detachably mounted at the fourth fixing portion.

[0058] Optionally, the footrest bracket includes a fourth section, a fifth section and a sixth section. The fourth section and the sixth section are arranged at intervals, the fifth section is connected to both the fourth section and the sixth section, and the fourth section, the fifth section and the sixth section are all provided with fourth fixing portions. In this way, each part of the footrest bracket is provided with a fourth fixing portion, increasing the adjustment range of the vibration frequency of the footrest structure 50, ensuring that the vibration frequency at the footrest can be adjusted to a comfortable range, and improving the reliability and practicality of the footrest structure 50.

[0059] Among them, the quantity of the fifth section can be flexibly adjusted according to actual usage needs. The quantity and positions of the fourth, fifth, and sixth sections and the fourth fixing parts can all be flexibly adjusted according to actual usage needs. Specifically in this embodiment, the footrest bracket is formed by injection molding. Both ends of the fifth section are respectively connected to the fourth section and the sixth section to cooperate to form a C shape. In other embodiments, the footrest bracket can also be in the shape of an I shape, a square shape, a well shape, etc.

[0060] In one embodiment, the footrest structure 50 further includes at least one second locking member for locking the counterweight to the fourth fixing part. In this way, the second locking member can lock the counterweight and the footrest bracket into one body, ensuring that the counterweight will not loosen relative to the footrest bracket during use and improving the reliability of the footrest structure 50.

[0061] Among them, the quantity of the second locking members can be flexibly adjusted according to the quantity of the counterweights. The second locking member can be set as a hoop, a locking bolt, or other locking structures.

[0062] Optionally, the fourth fixing part is provided with a first fixing hole, the counterweight is provided with a second fixing hole corresponding to the first fixing hole, and the second locking member includes a bolt and a nut. The bolt passes through the first fixing hole and the second fixing hole and is threadedly connected to the nut to lock the counterweight to the fourth fixing part. In this way, the convenience of assembling the footrest structure 50 is improved.

[0063] Among them, the quantity of the first fixing holes at each fourth fixing part and the quantity of the second fixing holes on each counterweight can both be flexibly adjusted according to actual usage needs. Specifically in this embodiment, each fourth fixing part is provided with two first fixing holes, each counterweight is provided with two second fixing holes, and the quantity of the second locking members is twice the quantity of the counterweights. Each of the second locking members is correspondingly arranged with each of the second fixing holes. In this way, it is ensured that the counterweight will not rotate around the axis of the bolt, and the reliability of the footrest structure 50 is improved.

[0064] Among them, the footrest structure 50 can be installed on the vehicle frame by screwing, clamping, plugging, banding, or other connection methods. The footrest can be installed on the footrest structure 50 by screwing, clamping, plugging, banding, or other connection methods.

[0065] In one embodiment, the footrest bracket is provided with at least one fifth fixing part, and each fifth fixing part is used for detachably connecting with the vehicle frame. In this way, the convenience of installing between the footrest structure 50 and the vehicle frame is improved.

[0066] Among them, the quantity of the fifth fixing parts can be flexibly adjusted according to actual usage needs. Specifically in this embodiment, the quantity of the fifth fixing parts is four, and the four fifth fixing parts are respectively installed at both ends of the fourth section and both ends of the sixth section.

[0067] In one embodiment, the footrest bracket is provided with at least one sixth fixing portion, and each sixth fixing portion is used for detachably connecting with the footrest. Thus, the convenience of installation between the footrest structure 50 and the footrest is improved.

[0068] Among them, the number of the sixth fixing portions can be flexibly adjusted according to actual usage needs. Specifically in this embodiment, the number of the sixth fixing portions is four, and the four sixth fixing portions are respectively installed at both ends of the fourth section and both ends of the sixth section.

[0069] Among them, the footrest bracket can be connected with the air intake structure 10 by screwing, clamping, plugging, gluing or other means. Specifically in this embodiment, the footrest bracket and the vehicle frame can adopt different materials (for example, the footrest bracket can adopt aluminum alloy or plastic materials) so that the footrest bracket can be designed with a complex shape to facilitate wiring and piping.

[0070] In one embodiment, the footrest bracket is provided with a seventh fixing portion, and the seventh fixing portion is used for connecting with the third fixing portion 210. Thus, the footrest bracket can play a role in fixing and positioning the air intake structure 10, ensure the installation position accuracy of the air intake structure 10, and improve the practicability of the footrest structure 50.

[0071] In the description of the present application, it should be understood that if there appear such terms as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application.

[0072] In addition, if there appear such terms as "first" and "second", these terms are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, if there appears the term "plural", the meaning of "plural" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0073] In this application, unless otherwise clearly defined and limited, if terms such as "installed", "connected", "joined", "fixed", etc. appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0074] In this application, unless otherwise clearly defined and limited, if there is a description such as a first feature being "on" or "under" a second feature, its meaning can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can mean that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is less than that of the second feature.

[0075] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0076] It should also be understood that when interpreting the connection relationship or position relationship of elements, although not clearly described, the connection relationship and position relationship are interpreted to include the error range, and this error range should be within the acceptable deviation range of a specific value determined by those skilled in the art. For example, "about", "approximate" or "substantially" can mean within one or more standard deviations, which is not limited here.

[0077] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0078] The above embodiments merely illustrate several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patented application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. An intake structure is applied to a motorcycle, and is characterized in that, Comprising: A rigid tube, which is fixed to the side tube of the vehicle frame. The rigid tube includes a first section, a second section, and a third section that are connected in sequence. The first section is located inside the side tube of the vehicle frame, and the third section is located outside the side tube of the vehicle frame; A first connecting tube, one end of which is connected to the first section, and the other end is for connecting to the main tube of the vehicle frame; A second connecting tube, one end of which is connected to the third section, and the other end is for connecting to the clutch.

2. The intake structure according to claim 1, characterized in that, The first section extends towards the direction close to the main tube of the vehicle frame. The axis of the first section is arranged at an angle with the axis of the second section. The third section extends towards the direction close to the clutch. The axis of the third section is arranged at an angle with the axis of the second section.

3. The intake structure according to claim 1, characterized in that, On the outer side wall of the second section close to the main tube of the vehicle frame, there is a first fixing portion, which is used for fixedly connecting with the side tube of the vehicle frame.

4. The intake structure according to claim 1, characterized in that, On the outer side wall of the first section, there is a first limiting portion, which is used for limit matching with the end face of the first connecting tube when the first section extends into the first connecting tube.

5. The intake structure according to claim 1, characterized in that On the outer side wall of the third section, there is a second fixing portion, which is used for fixedly connecting with the side tube of the vehicle frame.

6. The intake structure according to claim 1, characterized in that, On the outer side wall of the third section, there is a second limiting portion. At one end of the second connecting tube away from the clutch, there is a third limiting portion, which is used for limit matching with the second limiting portion when the third section extends into the second connecting tube.

7. The intake structure according to claim 1, characterized in that, The intake structure further includes a first locking member, which is used for locking and matching the third section with the second connecting tube when the third section extends into the second connecting tube, so that the third section and the second connecting tube maintain sealed connection.

8. The intake structure according to claim 1, wherein, One end of the third section close to the second connecting tube is set as the first end, and one end of the second connecting tube close to the third section is set as the second end. The first end and the second end are in sealed connection and are both set in a flat shape. The width of the first end is less than the height of the first end, and the width of the second end is less than the height of the second end.

9. The intake structure according to any one of claims 1 to 8, characterized in that, On the outer side wall of the first connecting tube, there is a third fixing portion, which is used for fixedly connecting with the pedal structure on the side tube of the vehicle frame.

10. A motorcycle, characterized in that, Comprising a side tube of the vehicle frame, a main tube of the vehicle frame, a clutch, and the intake structure according to any one of claims 1 to 9. The intake structure is fixed to the side tube of the vehicle frame and connects the main tube of the vehicle frame and the clutch.

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