All-terrain vehicle

Abstract

The utility model provides an all-terrain vehicle, relates to the technical field of vehicles, and aims at solving the technical problems that an existing all-terrain vehicle is long in exhaust path, large in heat radiation range and high in exhaust noise. The frame sequentially comprises a front space, a middle space and a rear space in the first direction. The power system is arranged in the rear space and fixed to a chassis of the frame, and the power system comprises an engine. The exhaust system is arranged in the rear space and comprises an exhaust pipe and a silencer, one end of the exhaust pipe is communicated with a combustion chamber of the engine, the other end of the exhaust pipe is connected with the silencer, and the longitudinal center line of the silencer extends in the second direction. According to the all-terrain vehicle, the exhaust path of the exhaust system can be shortened, then the heat radiation range is reduced, exhaust noise is lowered, and the driving experience and comfort of a driver and passengers are improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to an all-terrain vehicle. Background Art

[0002] All-terrain vehicles have good off-road performance and are gradually becoming suitable for sports, leisure, racing and other activities. All-terrain vehicles include power systems and exhaust systems, of which the power systems and exhaust systems are usually located in the middle of the all-terrain vehicle, which lengthens the exhaust path of the exhaust system, increases the heat radiation range and exhaust noise, and reduces the driving experience and comfort of the drivers and passengers. Utility Model Content

[0003] In view of the above problems, an embodiment of the present application provides an all-terrain vehicle that can shorten the exhaust path of the exhaust system, thereby reducing the heat radiation range and reducing exhaust noise, thereby improving the driving experience and comfort of the driver and passengers.

[0004] In order to achieve the above objectives, the embodiments of the present application provide the following technical solutions:

[0005] An embodiment of the present application provides an all-terrain vehicle, including a frame, a heat dissipation system, an air intake system, a fuel system, a power system and an exhaust system; the frame includes a front space, a middle space and a rear space in sequence along a first direction; the power system is arranged in the rear space, the power system is fixed on the chassis of the frame, and the power system includes an engine; the exhaust system is arranged in the rear space, the exhaust system includes an exhaust pipe and a muffler, one end of the exhaust pipe is connected to the combustion chamber of the engine, the other end of the exhaust pipe is connected to the muffler, and the longitudinal center line of the muffler extends along a second direction; along the first direction, the heat dissipation system is arranged at the front end of the frame, and the heat dissipation system is used to dissipate heat for the engine; the fuel system is arranged in the middle space and fixed on the chassis of the frame; the fuel system is used to provide fuel to the combustion chamber; the air intake system is used to provide air to the combustion chamber, and it includes an air filter, the air filter is arranged in the middle space and is located above the fuel system.

[0006] In one possible implementation, the heat dissipation system includes a radiator; along a first direction, the radiator is disposed at the front end of the frame, and the radiator is on the windward side of the all-terrain vehicle; the radiator is connected to the engine, and the radiator is configured to dissipate heat from the engine.

[0007] In a possible implementation, the frame includes two first main beams and two second main beams; the two first main beams correspond to the two second main beams respectively, the two first main beams are arranged at intervals along the second direction, and the two second main beams are arranged at intervals along the second direction; along the third direction, the first main beam is arranged above the second main beam, the front end of the first main beam has a bending portion, and is connected to the front end of the second main beam through the bending portion; the radiator is arranged on the bending portion.

[0008] In one possible implementation, the all-terrain vehicle further includes a front wheel and a rear wheel; a front wheel axle center is formed between the front wheel and the frame, and a rear wheel axle center is formed between the rear wheel and the frame; along the first direction, the power system is arranged close to the rear wheel axle center.

[0009] In a possible implementation, the exhaust pipe extends along a first direction, one end of the exhaust pipe is connected to the engine, and the other end of the exhaust pipe extends to the rear end of the all-terrain vehicle; along a second direction, the exhaust pipe is located in the middle of the frame.

[0010] In a possible implementation, the intake system also includes an intake pipe and an intake manifold; the intake pipe is located in the front space, and the air filter is arranged between the intake pipe and the intake manifold; the intake manifold is located in the rear space, and the intake manifold is connected to the combustion chamber.

[0011] In one possible implementation, the first end of the intake pipe has an air inlet; the air inlet is located on the rear side of the steering rod of the all-terrain vehicle along the first direction; the air inlet is located on the top of the frame along the second direction; the second end of the intake pipe extends toward the rear side along the first direction and is connected to the air filter.

[0012] In one possible implementation, the all-terrain vehicle also includes a battery; the fuel system includes a fuel tank, which is arranged in the middle space and at least partially installed on the chassis of the frame; the battery is arranged in the middle space, the battery is arranged parallel to the fuel tank, and is installed above the chassis of the frame.

[0013] In a possible implementation, the oil tank has a accommodating space that cooperates with the battery; the battery is disposed in the accommodating space.

[0014] In one possible implementation, the fuel tank includes a first part and a second part that are connected; along the first direction, the first part is arranged in front of the second part; along the second direction, the first part protrudes from the second part, and the accommodating space is enclosed therebetween, and the second part is connected to the chassis of the frame.

[0015] Compared with the related art, the all-terrain vehicle provided in the embodiment of the present application has the following advantages:

[0016] The all-terrain vehicle provided in the embodiment of the present application has a power system and an exhaust system arranged in the rear space. One end of the exhaust pipe of the exhaust system is connected to the engine of the power system, and the other end is connected to the muffler, so that the exhaust gas generated by the engine can be discharged through the exhaust pipe, while reducing the noise during exhaust.

[0017] In the related art, the power system and exhaust system of an all-terrain vehicle are usually arranged in the middle position of the all-terrain vehicle, resulting in a long exhaust path of the exhaust system, a large heat radiation range, and no muffler is provided at the tail end of the exhaust pipe, which reduces the driving experience and comfort of the driver and passengers.

[0018] The embodiment of the present application arranges the power system and the exhaust system in the rear space of the all-terrain vehicle, thereby shortening the exhaust path of the exhaust system, reducing the heat radiation range, and reducing the exhaust noise through the muffler, thereby improving the comfort of the drivers and passengers.

[0019] In addition to the technical problems solved by the embodiments of the present disclosure, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of the technical solutions described above, other technical problems that can be solved by the all-terrain vehicle provided by the embodiments of the present disclosure, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A front view of an all-terrain vehicle from one perspective provided in an embodiment of the present application;

[0022] Figure 2 A front view of the all-terrain vehicle provided in an embodiment of the present application from another perspective;

[0023] Figure 3 A top view of an all-terrain vehicle provided in an embodiment of the present application Figure 1 ;

[0024] Figure 4 A top view of an all-terrain vehicle provided in an embodiment of the present application Figure 2 ;

[0025] Figure 5 A schematic diagram of the layout of the fuel system and power system provided in the embodiment of the present application;

[0026] Figure 6 The structure diagram of the rear suspension provided in the embodiment of the present application is as follows Figure 1 ;

[0027] Figure 7 The structure diagram of the rear suspension provided in the embodiment of the present application is as follows Figure 2 ;

[0028] Figure 8 Schematic diagram of the layout of the intake system, fuel system, and power system provided in the embodiment of the present application Figure 1 ;

[0029] Fig. 9 Schematic diagram of the layout of the intake system, fuel system, and power system provided in the embodiment of the present application Figure 2 ;

[0030] Fig.10 A schematic diagram of the structure of the air intake system provided in an embodiment of the present application;

[0031] Fig.11 A schematic diagram of the arrangement of batteries and fuel tanks provided in the embodiment of the present application;

[0032] Fig.12 A detailed schematic diagram of the arrangement of the fuel tank on the vehicle frame provided in an embodiment of the present application.

[0033] Description of reference numerals:

[0034] 10-frame; 10a-front space; 10b-middle space; 10c-rear space;

[0035] 11-first main beam; 111-bending portion;

[0036] 12- second main beam;

[0037] 13- Support beam;

[0038] 14- front wheel support;

[0039] 15- rear wheel support;

[0040] 16-Rear suspension mounting plate;

[0041] 20-Fuel system;

[0042] 21- fuel tank; 211- first part; 212- second part;

[0043] 30-power system; 31-engine;

[0044] 40-Intake system;

[0045] 41-air filter; 42-intake pipe; 43-intake manifold; 44-intake port; 45-pressure stabilizing chamber; 46-throttle valve;

[0046] 50-Exhaust system;

[0047] 51-exhaust pipe; 52-muffler;

[0048] 60-Suspension system;

[0049] 61-Rear suspension;

[0050] 611-upper rocker arm; 612-lower rocker arm; 6121-first arm; 6122-second arm;

[0051] 62-Front suspension;

[0052] 70-transmission system;

[0053] 71-front drive shaft; 72-front axle assembly; 73-rear axle assembly;

[0054] 80-Steering system;

[0055] 81-steering rod;

[0056] 90- Radiator;

[0057] 100 - All-terrain vehicle;

[0058] 101-front wheel; 102-rear wheel; 103-battery. DETAILED DESCRIPTION

[0059] As described in the background technology, the current all-terrain vehicles have a long exhaust path, a large heat radiation range, and a large exhaust noise, which affects the comfort of the driver and passengers. The inventors have found that the reason for this problem is that in the related technology, the power system and exhaust system of the all-terrain vehicle are usually arranged in the middle position of the all-terrain vehicle, which lengthens the exhaust path of the exhaust system, has a large heat radiation range, and reduces the driving experience and comfort of the driver and passengers.

[0060] In view of the above technical problems, the embodiment of the present application provides an all-terrain vehicle, in which the power system and the exhaust system are arranged in the rear space of the all-terrain vehicle, one end of the exhaust pipe is connected to the engine, and the other end is connected to the muffler. Such an arrangement can shorten the exhaust path of the exhaust system, reduce the heat radiation range and exhaust noise, and improve the comfort of the driver and passengers.

[0061] In order to make the above-mentioned purposes, features and advantages of the embodiments of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of this application.

[0062] To facilitate the description of the embodiments of the present application, the coordinate system in the accompanying drawings is explained, wherein the X-axis direction is the first direction, which can be defined as the driving direction of the all-terrain vehicle; the Y-axis direction is the second direction, which can be defined as the width direction of the all-terrain vehicle; and the Z-axis direction is the third direction, which can be defined as the height direction of the all-terrain vehicle.

[0063] like Figures 1 to 5 As shown, the all-terrain vehicle 100 provided in the embodiment of the present application includes:

[0064] The frame 10 may be a frame structure and has a storage space. Along the first direction, the storage space of the frame 10 is divided into a front space 10a, a middle space 10b and a rear space 10c. Exemplarily, the frame 10 in the embodiment of the present application includes two first main beams 11, two second main beams 12 and a plurality of support beams 13; wherein the first main beams 11 and the second main beams 12 may be weldable square tubes or round tubes. Along the third direction, the two first main beams 11 are located at the top of the frame 10, the two second main beams 12 are located at the bottom of the frame 10, and the two first main beams 11 correspond to the two second main beams 12 respectively, that is, a first main beam 11 is arranged above each second main beam 12 at intervals.

[0065] Multiple support beams 13 are arranged along the third direction, and each support beam 13 is connected between the corresponding first main beam 11 and the second main beam 12. Each support beam 13 and the first main beam 11 and the second main beam 12 respectively enclose a front space 10a, a middle space 10b and a rear space 10c.

[0066] The power system 30 is arranged in the rear space 10 c and is fixed on the chassis of the frame 10 . The power system 30 includes an engine 31 . The engine 31 is used to provide power to the all-terrain vehicle 100 .

[0067] Furthermore, the all-terrain vehicle 100 also includes a traveling system and a transmission system 70. The traveling system includes wheels, which can be divided into a front wheel 101 and a rear wheel 102 according to the installation position of the wheels. The front wheel 101 can be installed on the front end of the frame 10 through a front wheel support 14, and the rear wheel 102 can be installed on the rear end of the frame 10 through a rear wheel support 15. The power generated by the power system 30 can be transmitted to the wheels through the transmission system 70, and drive the wheels to rotate.

[0068] For example, the transmission system 70 includes a front transmission shaft 71, a front axle assembly 72, a rear axle assembly 73, and a rear transmission shaft, wherein one end of the front transmission shaft 71 is transmission-connected to the engine 31 to receive power; the other end of the front transmission shaft 71 is transmission-connected to the front axle assembly 72, and the power is transmitted to the front wheel 101 through the front axle assembly 72, so that the front wheel 101 rotates. One end of the rear transmission shaft is transmission-connected to the engine 31 to receive power; the other end of the rear transmission shaft is transmission-connected to the rear axle assembly 73, and the power is transmitted to the rear wheel 102 through the rear axle assembly 73, so that the rear wheel 102 rotates.

[0069] The steering system 80 is disposed in the front space 10a and is used to control the forward direction of the straddle-type vehicle. For example, the steering system 80 includes a handlebar and a steering rod 81 connected thereto, the steering rod 81 extending along the third direction, the steering rod 81 can be connected to the front half shaft of the front axle assembly 72 through a steering gear, and controls the steering of the front wheel 101.

[0070] The exhaust system 50 is arranged in the rear space 10c, and includes an exhaust pipe 51 and a muffler 52. One end of the exhaust pipe 51 is connected to the combustion chamber of the engine 31, and the other end of the exhaust pipe 51 is connected to the muffler 52. The exhaust pipe 51 can discharge the exhaust gas in the combustion chamber of the engine 31 through the exhaust pipe 51 and can reduce the exhaust noise.

[0071] Further, the muffler 52 is configured as a muffler pipe, and the longitudinal center line of the muffler 52 extends along the second direction, that is, the muffler 52 extends along the width direction of the frame 10. Such an arrangement can optimize the layout of the all-terrain vehicle 100 and make it more compact.

[0072] The fuel system 20 is arranged in the middle space 10b and fixed on the chassis of the frame 10. The fuel system 20 is used to provide fuel to the combustion chamber of the engine 31, and includes a fuel tank 21, which is connected to the combustion chamber of the engine 31 through a fuel supply pipeline.

[0073] The air intake system 40 is used to provide air to the combustion chamber of the engine 31 and mix with the air in the combustion chamber for combustion, so that the engine 31 can output power. Furthermore, the air intake system 40 also includes an air filter 41, which is arranged in the middle space 10b and above the fuel system 20. This arrangement can optimize the layout of the all-terrain vehicle 100 and make it more compact.

[0074] The engine 31 of the all-terrain vehicle 100 generates heat during operation. To ensure the normal operation of the engine 31, the all-terrain vehicle 100 provided in the embodiment of the present application also includes a heat dissipation system. Along the first direction, the heat dissipation system is arranged at the front end of the frame 10 and is connected to the engine 31 so as to be able to perform heat exchange with the water tank of the engine 31 to reduce the temperature of the engine 31.

[0075] In the related art, the power system and exhaust system of an all-terrain vehicle are usually arranged in the middle position of the all-terrain vehicle, which prolongs the exhaust path of the exhaust system, increases the heat radiation range, and reduces the driving experience and comfort of the driver and passengers.

[0076] In the embodiment of the present application, the power system 30 and the exhaust system 50 are arranged in the rear space 10c of the all-terrain vehicle 100, so that the exhaust path of the exhaust system 50 can be shortened, the heat radiation range can be reduced, and the comfort of the drivers and passengers can be improved. Furthermore, by arranging a muffler 52 in the rear space 10c, and the muffler 52 is connected to the exhaust pipe 51, the exhaust noise can be reduced, and the comfort of the drivers and passengers can be further improved.

[0077] See also Figure 1 The heat dissipation system in the embodiment of the present application includes a radiator 90, which is disposed at the front end of the frame 10 along the first direction and is located on the windward side of the all-terrain vehicle. For example, the radiator 90 is detachably connected to the front end of the frame 10, and the radiator 90 is configured as a water-cooled radiator 90, and is connected to the water tank of the engine 31 through a fluid pipeline to dissipate the heat generated by the engine 31 during operation.

[0078] Further, the radiator 90 is disposed at the front end of the frame 10. For example, the first main beam 11 extends along the first direction, and has a bent portion 111 at its front end. The bent portion 111 extends obliquely downward along the third direction, and its inclined direction is toward the front side along the first direction, that is, the bent portion 111 forms an inclined surface at the front end. The radiator 90 is detachably mounted on the bent portion 111 and is located on the windward side of the all-terrain vehicle 100.

[0079] See also Figure 1 and Figure 2In the embodiment of the present application, the front wheel 101 and the frame 10 form the front wheel axle center, the rear wheel 102 and the frame 10 form the rear wheel axle center, and the power system 30 is arranged close to the rear axle center along the first direction. For example, the distance between the front axle center and the rear axle center is S1, and the distance between the front axle center and the front end of the power system 30 is S2, then S2 is greater than 0.5S1. In this way, the engine 31 is arranged at the rear position of the frame 10, which can further reduce the exhaust path, reduce the heat radiation range, and improve the comfort of the driver and passengers.

[0080] like Figure 6 and Figure 7 As shown, the all-terrain vehicle provided in the embodiment of the present application further includes a suspension system 60, which is used to provide shock absorption for the straddle-type vehicle. Specifically, the suspension system 60 includes a front suspension 62 and a rear suspension 61. The front suspension 62 is arranged at the front end of the frame 10 and connected to the front wheel support 14, that is, the front suspension 62 is connected between the front wheel support 14 and the frame 10, and is used to absorb shock for the front wheel 101. The rear suspension 61 is arranged at the rear end of the frame 10 and connected to the rear wheel support 15, that is, the rear suspension 61 is connected between the rear wheel support 15 and the frame 10, and is used to absorb shock for the rear wheel 102.

[0081] Further, the rear suspension 61 includes a rear left suspension and a rear right suspension, and the rear left suspension and the rear right suspension are symmetrically arranged along the second direction on both sides of the frame 10. For the convenience of describing the embodiment, one of the rear left suspension or the rear right suspension is taken as an example for description.

[0082] In the embodiment of the present application, the rear right suspension includes an upper rocker arm and a lower rocker arm, wherein the upper rocker arm 611 and the lower rocker arm 612 are arranged upward and downward along the third direction, and the frame 10 is provided with a rear suspension mounting plate 16. One end of the upper rocker arm 611 is connected to the rear suspension mounting plate 16, and two first connection points are formed between the upper rocker arm 611 and the rear suspension mounting plate 16; the other end of the upper rocker arm 611 is connected to the upper part of the rear wheel support 15, and two second connection points are formed.

[0083] Furthermore, in the first direction, the length L1 between the two first connection points is greater than the length L2 between the two second connection points. In this way, the connection length L1 between the upper rocker arm 611 and the frame 10 is greater than the connection length L2 between the upper rocker arm 611 and the rear wheel support 15, which can improve the reliability and stability of the connection between the rear suspension 61 and the frame 10.

[0084] On the basis of the above-mentioned embodiment, the lower rocker arm 612 in the embodiment of the present application includes a first arm 6121 and a second arm 6122, wherein one end of the first arm 6121 and the second arm 6122 are connected to the lower part of the rear wheel support 15, one end of the first arm 6121 is connected to the rear suspension mounting plate 16, and two third connection points are formed; the other end of the second arm 6122 is connected to the frame 10.

[0085] The width of the rear suspension mounting plate 16 gradually decreases from top to bottom along the third direction, and the upper rocker arm 611 and the first arm 6121 are respectively connected to one rear suspension mounting plate 16, and form a first connection point and a third connection point respectively. Along the first direction, the length L1 between the two first connection points is greater than the length L3 between the two third connection points. Such an arrangement can improve the shock absorption performance of the rear suspension 61.

[0086] See also Figure 4 In the embodiment of the present application, the exhaust pipe 51 extends along a first direction, and the exhaust pipe 51 includes a first end and a second end that are relatively arranged, wherein the first end of the exhaust pipe 51 is connected to the combustion chamber of the engine 31; the second end of the exhaust pipe 51 extends backward along the first direction to the rear end of the all-terrain vehicle 100, and the second end of the exhaust pipe 51 is connected to the muffler 52.

[0087] Furthermore, along the second direction, the exhaust pipe 51 is arranged at the middle position of the frame 10, that is, along the width direction of the frame 10, the exhaust pipe 51 is arranged in the center of the frame 10. Compared with the case where the exhaust pipe 51 is arranged on one side of the frame 10, this configuration can optimize the layout of the all-terrain vehicle 100, avoid scalding the driver and passengers with the exhaust pipe 51, and improve driving safety and comfort.

[0088] like Figures 8 to 10 As shown, in the embodiment of the present application, the intake system 40 further includes an intake pipe 42 and an intake manifold 43, and the air filter 41 is disposed between the intake pipe 42 and the intake manifold 43, and is respectively connected to the intake pipe 42 and the intake manifold 43. The intake pipe 42 is located in the front space 10a, and the first end of the intake pipe 42 has an air inlet 44. The second end of the intake pipe 42 extends toward the rear side along the first direction and is connected to the intake end of the air filter 41 to provide air to the air filter 41.

[0089] The intake manifold 43 is located in the rear space 10c. One end of the intake manifold 43 is used to connect with the air outlet end of the air filter 41, and the other end of the intake manifold 43 is connected to and sealed with the combustion chamber of the engine 31. The air filtered by the air filter 41 enters the combustion chamber of the engine 31 through the intake manifold 43.

[0090] Exemplarily, the air filter 41 may be a flat filter, the air inlet end of which is disposed on the lower cover and located at the bottom of the air filter 41. The air outlet end is disposed on the upper cover and located at the top of the air filter 41, that is, the air flows from bottom to top for filtering.

[0091] The air intake pipe 42 includes a first end and a second end opposite to each other, wherein the first end of the air intake pipe 42 is provided with an air intake port 44, and the air intake port 44 is connected to the first main beam 11 through a mounting plate. The air intake port 44 is located at the rear side of the steering rod 81 of the all-terrain vehicle 100 along the first direction; the air intake port 44 is located above the first main beam 11 along the second direction, that is, the air intake port 44 is located above the top of the frame 10.

[0092] The second end of the intake pipe 42 is connected to the air filter 41 through a clamp and communicates with the air filter 41. For example, the second end of the intake pipe 42 is communicated with and sealed to the intake end at the bottom of the air filter 41, so as to introduce air into the air filter 41 and filter it from bottom to top along the filter element. The filtered air can flow from the outlet end of the air filter 41 to the intake manifold 43, and further flow to the combustion chamber of the engine 31 through the intake manifold 43.

[0093] Furthermore, in order to improve the stability of the intake flow of the engine 31, the intake system 40 provided in the embodiment of the present application also includes a throttle 46 and a pressure stabilizing chamber 45, wherein one end of the pressure stabilizing chamber 45 is connected to the intake manifold 43, and the other end of the pressure stabilizing chamber 45 is connected to the throttle 46, and the throttle 46 is arranged between the pressure stabilizing chamber 45 and the air filter 41, and the throttle 46 is connected to the outlet end of the air filter 41, and the throttle 46 is configured to control the gas flow flowing into the pressure stabilizing chamber 45.

[0094] Specifically, the pressure stabilizing chamber 45 is L-shaped as a whole, and the pressure stabilizing chamber 45 includes a bottom and a top. Along the second direction, the throttle valve 46 is arranged below the pressure stabilizing chamber 45, and one side of the throttle valve 46 is connected to the air outlet end of the air filter 41, and the other side is connected to the bottom of the pressure stabilizing chamber 45, that is, the throttle valve 46 is used to connect the pressure stabilizing chamber 45 and the air outlet end of the air filter 41.

[0095] The top of the pressure stabilizing chamber 45 is connected to the intake manifold 43. The embodiment of the present application can control the opening of the throttle 46 to control the gas flow into the pressure stabilizing chamber 45, thereby controlling the intake flow of the engine 31. In this arrangement, the air first passes through the throttle 46, then enters the pressure stabilizing chamber 45, and enters the combustion chamber along the L-shaped trajectory through the intake manifold 43 for combustion. This arrangement can ensure the sufficiency and continuous stability of air.

[0096] On the basis of the above-mentioned embodiment, the air intake pipe 42 in the implementation of the present application is configured as a hose, which can facilitate the arrangement of the air intake pipe 42; and, along the first direction, the opening direction of the air intake port 44 is arranged toward the rear side; or, along the second direction, the opening of the air intake port 44 is arranged upward. Such an arrangement can prevent muddy water splashed during the driving of the all-terrain vehicle 100 from entering the air intake port 44, resulting in clogging of the filter element, thereby improving the service life and reliability of the air filter 41.

[0097] like Fig.11 and Fig.12 As shown, the all-terrain vehicle 100 provided in the embodiment of the present application also includes a battery 103, which is used to supply power to the all-terrain vehicle 100, wherein the battery 103 is arranged in the middle space 10b and is at least partially installed above the chassis of the frame 10, that is, the bottom of the battery 103 is spaced apart from the chassis of the vehicle along the third direction.

[0098] Furthermore, the fuel tank 21 of the fuel system 20 is disposed in the middle space 10b, and at least a portion of the fuel tank 21 is mounted on the chassis of the frame 10. In other words, the fuel tank 21 and the battery 103 in the embodiment of the present application are both disposed in the middle space 10b. In order to optimize the layout of the all-terrain vehicle 100 and lower the center of gravity of the all-terrain vehicle 100, a portion of the battery 103 and the fuel tank 21 are at the same height, and the two have overlapping portions.

[0099] Exemplarily, the fuel tank 21 is configured as a special-shaped fuel tank, and one side of the fuel tank 21 has a accommodating space or an avoidance space, and the accommodating space is coordinated with the outer contour of the fuel tank 21 so that the battery 103 can be arranged in the accommodating space, that is, at least the battery 103 is located in the accommodating space of the fuel tank 21 to reduce the layout space of the two.

[0100] For example, the fuel tank 21 includes a first part 211 and a second part 212 that are connected. Along the first direction, the first part 211 is arranged in front of the second part 212, and the first part 211 smoothly transitions toward the bottom of the second part 212. The bottom of the second part 212 is fixed to the chassis of the frame 10, that is, the bottom of the fuel tank 21 is fixedly connected to the chassis of the frame 10.

[0101] Along the second direction, the first side surface of the first portion 211 protrudes from the first side surface of the second portion 212 and encloses a receiving space. In other words, the extension length of the first portion 211 along the second direction is greater than the extension length of the second portion 212 along the second direction, and a certain distance is maintained between the first side surface of the first portion 211 and the first side surface of the second portion 212. This distance can be matched with the length of the battery 103 in the second direction, so that the battery 103 is arranged in the receiving space formed by the first portion 211 and the second portion 212.

[0102] It is understandable that the battery 103 is arranged in the accommodation space, the bottom of the battery 103 is located above the chassis of the frame 10, and the frame 10 is provided with a mounting frame or a supporting frame, through which the battery 103 is supported. In this way, a clearance space can be formed at the bottom of the battery 103 to facilitate the arrangement of the front transmission shaft 71.

[0103] In the embodiment of the present application, the fuel tank 21 is configured as a special-shaped fuel tank and has a space for accommodating the battery 103, so that part of the battery 103 can be arranged in parallel with the fuel tank 21. Compared with the related art in which the fuel tank 21 and the battery 103 are stacked in the vertical direction, this arrangement can lower the center of gravity of the all-terrain vehicle 100 and improve the driving safety of the all-terrain vehicle 100.

[0104] The various embodiments or implementation methods in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referenced to each other.

[0105] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0106] In general, terms should be understood, at least in part, by the context in which they are used. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, depending, at least in part, on the context. Similarly, terms such as "a," "an," or "the" may also be understood to convey singular usage or to convey plural usage, depending, at least in part, on the context.

[0107] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0108] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0109] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An all-terrain vehicle, characterized in that: Including frame, cooling system, air intake system, fuel system, power system and exhaust system; The frame includes a front space, a middle space and a rear space in sequence along a first direction; The power system is arranged in the rear space, the power system is fixed on the chassis of the frame, and the power system includes an engine; The exhaust system is arranged in the rear space, and the exhaust system includes an exhaust pipe and a muffler, one end of the exhaust pipe is communicated with the combustion chamber of the engine, the other end of the exhaust pipe is connected to the muffler, and the longitudinal center line of the muffler extends along the second direction; Along the first direction, the heat dissipation system is arranged at the front end of the frame, and the heat dissipation system is used to dissipate heat from the engine; The fuel system is arranged in the middle space and fixed on the chassis of the frame; the fuel system is used to provide fuel to the combustion chamber; The air intake system is used to provide air to the combustion chamber, and comprises an air filter. The air filter is arranged in the middle space and is located above the fuel system.

2. The all-terrain vehicle according to claim 1, characterized in that: The heat dissipation system comprises a radiator; Along the first direction, the radiator is disposed at the front end of the frame, and the radiator is located on the windward side of the all-terrain vehicle; The radiator is in communication with the engine, and is configured to dissipate heat from the engine.

3. The all-terrain vehicle according to claim 2, characterized in that: The frame includes two first main beams and two second main beams; The two first main beams correspond to the two second main beams respectively, the two first main beams are arranged at intervals along the second direction, and the two second main beams are arranged at intervals along the second direction; Along the third direction, the first main beam is arranged above the second main beam, the front end of the first main beam has a bending portion, and is connected to the front end of the second main beam through the bending portion; The heat sink is arranged on the bent portion.

4. The all-terrain vehicle according to any one of claims 1 to 3, characterized in that: The all-terrain vehicle also includes front wheels and rear wheels; A front wheel axle center is formed between the front wheel and the frame, and a rear wheel axle center is formed between the rear wheel and the frame; along the first direction, the power system is arranged close to the rear wheel axle center.

5. The all-terrain vehicle according to claim 4, characterized in that: The exhaust pipe extends along a first direction, one end of the exhaust pipe is connected to the engine, and the other end of the exhaust pipe extends to the rear end of the all-terrain vehicle; Along the second direction, the exhaust pipe is located at a middle position of the frame.

6. The all-terrain vehicle according to claim 1, characterized in that: The air intake system also includes an air intake pipe and an air intake manifold; The air intake pipe is located in the front space, and the air filter is arranged between the air intake pipe and the air intake manifold; The intake manifold is located in the rear space, and the intake manifold is communicated with the combustion chamber.

7. The all-terrain vehicle according to claim 6, characterized in that: The first end of the air inlet pipe has an air inlet; The air inlet is located at the rear side of the steering rod of the all-terrain vehicle along the first direction; the air inlet is located at the top of the frame along the second direction; The second end of the air intake pipe extends toward the rear side along the first direction and is communicated with the air filter.

8. The all-terrain vehicle according to claim 1, characterized in that: The all-terrain vehicle also includes a battery; The fuel system includes a fuel tank, which is disposed in the middle space and at least partially mounted on the chassis of the frame; The storage battery is arranged in the middle space, the battery is arranged in parallel with the oil tank, and is installed above the chassis of the frame.

9. The all-terrain vehicle according to claim 8, characterized in that: The oil tank has a storage space that matches the battery; The storage battery is arranged in the accommodating space.

10. The all-terrain vehicle according to claim 9, characterized in that: The oil tank comprises a first part and a second part which are connected; The first portion is arranged in front of the second portion along a first direction; Along the second direction, the first part protrudes from the second part, and the accommodating space is enclosed therebetween, and the second part is connected to the chassis of the frame.

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