All-terrain vehicle

Abstract

The utility model provides an all-terrain vehicle which comprises an engine, a silencer assembly and a first exhaust pipe, the engine comprises a cylinder, the silencer assembly comprises a tail gas pipe, one end of the first exhaust pipe is connected with an exhaust port of the cylinder, and the other end of the first exhaust pipe is connected with an inlet of the silencer assembly; waste gas generated by the engine sequentially passes through the first exhaust pipe, an inlet of the silencer assembly and the tail gas pipe and then is exhausted into the atmosphere. The inner diameter of the first exhaust pipe is R1, the inner diameter of the tail gas pipe is R2, and R1 / R2 is larger than or equal to 1.08 and smaller than or equal to 1.33. In this way, exhaust noise can be reduced, the exhaust temperature of the exhaust pipe can be reduced, and the output power of the engine can be further 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 are often used for field transportation, field rescue, field exploration, field construction and other purposes. Therefore, all-terrain vehicles need powerful engines to adapt to complex field terrain.

[0003] However, powerful engines often produce large amounts of exhaust gas and loud noise when emitting exhaust gas. Utility Model Content

[0004] In order to solve the above problems, an embodiment of the present application provides an all-terrain vehicle to at least partially solve the above problems.

[0005] An all-terrain vehicle provided by the present application includes an engine, a muffler assembly and a first exhaust pipe, the engine includes a cylinder, the muffler assembly includes an exhaust pipe, one end of the first exhaust pipe is connected to the exhaust port of the cylinder, and the other end is connected to the inlet of the muffler assembly; the exhaust gas generated by the engine passes through the first exhaust pipe and the inlet of the muffler assembly in sequence, and is discharged into the atmosphere through the exhaust pipe; the inner diameter of the first exhaust pipe is R1, the inner diameter of the exhaust pipe is R2, and 1.08≤R1 / R2≤1.33.

[0006] Optionally, the muffler assembly also includes a second exhaust pipe and a muffler body, the second exhaust pipe is connected to the inlet of the muffler body, and the tail pipe is connected to the outlet of the muffler body; the all-terrain vehicle also includes a first elastic member, the first exhaust pipe sealing sleeve is arranged on the second exhaust pipe, or the second exhaust pipe sealing sleeve is arranged on the first exhaust pipe, and the first elastic member is connected between the outer surface of the first exhaust pipe and the outer surface of the second exhaust pipe.

[0007] Optionally, a first hanging ring is provided on the outer surface of the first exhaust pipe, a second hanging ring is provided on the outer surface of the second exhaust pipe, and hooks are provided at both ends of the first elastic member to be connected to the first hanging ring and the second hanging ring respectively.

[0008] Optionally, the number of the first elastic members is at least three, and the at least three first elastic members are evenly spaced and distributed around the first exhaust pipe.

[0009] Optionally, the all-terrain vehicle further includes a first sealing member, which is sleeved on the first exhaust pipe or the second exhaust pipe and is located between the first exhaust pipe and the second exhaust pipe.

[0010] Optionally, the first exhaust pipe includes a connecting section and a first connecting seat, the cylinder includes a second connecting seat arranged at the exhaust port, the connecting section is inserted into the exhaust port of the cylinder, and the first connecting seat and the second connecting seat are connected.

[0011] Optionally, the connecting section is inserted into the cylinder exhaust port in a shape-fitting manner.

[0012] Optionally, the all-terrain vehicle also includes a frame, and the muffler assembly includes a first connecting part and a second connecting part, and the muffler assembly is flexibly connected to the frame through the first connecting part and the second connecting part, the first connecting part is located above the exhaust pipe, and the second connecting part is located below the exhaust pipe, wherein the number of the first connecting parts is at least two.

[0013] Optionally, in the left-right direction, the two first connecting parts are respectively located on both sides of the center of the cylinder exhaust port.

[0014] Optionally, the all-terrain vehicle further includes a muffler bracket, the muffler bracket is detachably mounted on the frame, and the second connecting portion is connected to the muffler bracket.

[0015] Based on the above-mentioned all-terrain vehicle provided by the present application, by making R1 and R2 reach the above-mentioned ratio relationship, the difference between the air inlet cross-sectional area and the air outlet cross-sectional area of ​​the muffler assembly can be effectively controlled, even if the two cross-sectional areas are close, which helps to reduce exhaust noise, reduce the exhaust temperature of the tail pipe, and help to further improve the engine output power. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following drawings are intended only to illustrate and explain the present application, and do not limit the scope of the present application.

[0017] Figure 1 It is a left view of a partial structure of an all-terrain vehicle provided by an exemplary embodiment of the present application.

[0018] Figure 2 It is a bottom view of a partial structure of an all-terrain vehicle provided by an exemplary embodiment of the present application.

[0019] Figure 3 It is a left view of a partial structure of an all-terrain vehicle provided by an exemplary embodiment of the present application.

[0020] Figure 4 is based on Figure 3 Schematic diagram of the first connecting portion.

[0021] Figure 5 It is a top view of a partial structure of an all-terrain vehicle provided by an exemplary embodiment of the present application.

[0022] Figure 6 It is a front view of a partial structure of an all-terrain vehicle provided by an exemplary embodiment of the present application.

[0023] Figure 7 It is a rear view of a partial structure of an all-terrain vehicle provided by an exemplary embodiment of the present application.

[0024] Reference numerals:

[0025] 10-engine, 11-cylinder;

[0026] 20-first exhaust pipe, 21-first hanging ring, 22-connecting section, 23-first connecting seat;

[0027] 30-muffler assembly, 31-exhaust pipe, 32-muffler body, 33-second exhaust pipe, 331-second hanging ring,

[0028] 35-first connecting part, 351-first rubber member, 352-support, 353-first connecting rod, 36-second connecting part,

[0029] 40-first elastic member, 51-vehicle frame, 52-muffler bracket. DETAILED DESCRIPTION

[0030] In order to have a clearer understanding of the technical features, purposes and effects of the embodiments of the present application, the specific implementation methods of the embodiments of the present application are now described with reference to the accompanying drawings.

[0031] In this document, “exemplary” means “serving as an example, instance or illustration”, and any diagram or implementation described in this document as “exemplary” should not be interpreted as a more preferred or more advantageous technical solution.

[0032] In order to simplify the drawings, only the parts related to the present application are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one or more of the parts with the same structure or function are schematically drawn or only one or more of them are marked.

[0033] The present application provides an all-terrain vehicle, referring to Figure 1 and Figure 2The all-terrain vehicle includes an engine 10, a muffler assembly 30 and a first exhaust pipe 20: the engine 10 includes a cylinder 11; the muffler assembly 30 includes an exhaust pipe 31; one end of the first exhaust pipe 20 is connected to the exhaust port of the cylinder 11, and the other end is connected to the inlet of the muffler assembly 30; the exhaust gas generated by the engine 10 passes through the first exhaust pipe 20 and the inlet of the muffler assembly 30 in sequence, and is discharged into the atmosphere after passing through the exhaust pipe 31; the inner diameter of the first exhaust pipe 20 is R1, and the inner diameter of the exhaust pipe 31 is R2, 1.08≤R1 / R2≤1.33.

[0034] Through the above technical solution, the noise during exhaust emission can be reduced through the muffler assembly 30, wherein, by making R1 and R2 reach the above-mentioned ratio relationship, the difference between the air inlet cross-sectional area and the air outlet cross-sectional area of ​​the muffler assembly 30 can be effectively controlled, even if the two cross-sectional areas are close, which helps to reduce exhaust noise, reduce the exhaust temperature of the tail pipe 31, and help to further improve the output power of the engine 10.

[0035] Among them, the all-terrain vehicle may include a steering wheel and four wheels; or, the all-terrain vehicle may include a handlebar and two front and rear wheels, which is not limited in this application.

[0036] For further reference, Figure 1 and Figure 2 , the muffler assembly 30 further includes a second exhaust pipe 33 and a muffler body 32, the second exhaust pipe 33 is connected to the inlet of the muffler body 32, and the tail pipe 31 is connected to the outlet of the muffler body 32; the all-terrain vehicle further includes a first elastic member 40, the first exhaust pipe 20 is sealed on the second exhaust pipe 33, or the second exhaust pipe 33 is sealed on the first exhaust pipe 20, and the first elastic member 40 is connected between the outer surface of the first exhaust pipe 20 and the outer surface of the second exhaust pipe 33. Based on the above technical solution, the first exhaust pipe 20 and the muffler assembly 30 can be connected together through the first elastic member 40, so that when assembling the vehicle, the adverse effects of manufacturing errors on assembly can be reduced, ensuring that the first exhaust pipe 20 and the muffler assembly 30 can still be connected together through the first elastic member 40 sealing sleeve; at the same time, the elastically connected first exhaust pipe 20 and the muffler assembly 30 can better adapt to the vibration of the all-terrain vehicle and enhance the durability of the connection between the two.

[0037] In one possible embodiment, reference Figure 3 and Figure 5A first hanging ring 21 is provided on the outer surface of the first exhaust pipe 20, a second hanging ring 331 is provided on the outer surface of the second exhaust pipe 33, and hooks are provided at both ends of the first elastic member 40 to be respectively connected with the first hanging ring 21 and the second hanging ring 331. In this way, the first exhaust pipe 20 and the second exhaust pipe 33 can be quickly and detachably connected together by hook connection, and the structure is simple.

[0038] In one possible embodiment, reference Figure 5 , the number of the first elastic members 40 is at least three, and the at least three first elastic members 40 are evenly spaced around the first exhaust pipe 20. That is, all the first elastic members 40 are evenly spaced around the first exhaust pipe 20, which helps to stably connect the first exhaust pipe 20 and the second exhaust pipe 33. Accordingly, the number of the first hanging rings 21 and the second hanging rings 331 are equal to the number of the first elastic members 40, all the first hanging rings 21 are evenly spaced around the first exhaust pipe 20, and all the second hanging rings 331 are evenly spaced around the second exhaust pipe 33.

[0039] In a possible embodiment, the all-terrain vehicle further includes a first sealing member, which is sleeved on the first exhaust pipe 20 or the second exhaust pipe 33 and located between the first exhaust pipe 20 and the second exhaust pipe 33. For example, the first sealing member may be a graphite sleeve.

[0040] In one possible implementation, reference Figure 3 and Figure 5 The first exhaust pipe 20 includes a connecting section 22 and a first connecting seat 23, and the cylinder 11 includes a second connecting seat arranged at the exhaust port. The connecting section 22 is inserted into the exhaust port of the cylinder 11, and the first connecting seat 23 is connected to the second connecting seat.

[0041] In one example, the all-terrain vehicle may include a first bolt and a first nut. After the first bolt passes through the first connection seat 23 and the second connection seat, it is threadedly connected with the first nut.

[0042] In one example, reference Figure 2 and Figure 5 , the connecting section 22 is inserted into the exhaust port of the cylinder 11 in a shape-matched manner. In this way, not only can the connecting section 22 and the exhaust port of the cylinder 11 have good sealing performance, but also the cross-sectional area of ​​the inner hole of the first exhaust pipe 20 and the cross-sectional area of ​​the exhaust port of the cylinder 11 can be substantially the same, which is conducive to the smooth entry of exhaust gas into the first exhaust pipe 20.

[0043] refer to Figure 1 and Figure 7The all-terrain vehicle further includes a vehicle frame 51, and the muffler assembly 30 includes a first connection portion 35 and a second connection portion 36. The muffler assembly 30 is flexibly connected to the vehicle frame 51 through the first connection portion 35 and the second connection portion 36. The first connection portion 35 is located above the exhaust pipe 31, and the second connection portion 36 is located below the exhaust pipe 31. The number of the first connection portions 35 is at least two. Through this technical solution, the muffler assembly 30 can be stably mounted on the vehicle frame 51 through at least three connection portions. Since the muffler assembly 30 is flexibly connected to the vehicle frame 51, the adverse effect of the vibration of the vehicle frame 51 on the muffler assembly 30 can be reduced.

[0044] Among them, reference Figure 3 and Figure 4 The first connecting portion 35 may include a first rubber member 351, a support 352 and a first connecting rod 353. The two ends of the first connecting rod 353 are respectively connected to the muffler body 32 and the first rubber member 351. The first rubber member 351 is nested in the support 352. The support 352 is detachably connected to the frame 51. Specifically, the support 352 can be detachably connected to the frame 51 by a second bolt and a second nut.

[0045] The second connecting portion 36 may also include a second connecting rod and a second rubber member. Two ends of the second connecting rod are respectively connected to the muffler body 32 and the second rubber member. The second rubber member is connected to the vehicle frame 51 .

[0046] In one example, the first connection portion 35 and the second connection portion 36 are both connected to the muffler body 32 , the first connection portion 35 is connected to the upper end of the muffler body 32 , and the second connection portion 36 is connected to the lower end of the muffler body 32 .

[0047] In one example, reference Figure 2 and Figure 6 In the left-right direction of the all-terrain vehicle, the two first connecting parts 35 are respectively located on both sides of the center of the exhaust port of the cylinder 11.

[0048] In one example, reference Figure 7 The all-terrain vehicle further includes a muffler bracket 52, which is detachably mounted on the vehicle frame 51, and the second connecting portion 36 is connected to the muffler bracket 52. With this technical solution, during the assembly of the all-terrain vehicle, the muffler bracket 52 can be mounted on the vehicle frame 51 when the second connecting portion 36 needs to be connected at the end, so as to prevent the muffler bracket 52 from obstructing the assembly of other parts.

[0049] In addition, the tail pipe 31 may include a flange and a pipe body, and the flange may be detachably connected to the muffler body 32 via a third bolt and a third nut.

[0050] It should be clarified that the "up" and "down" defined in this application are up and down in the direction of gravity. "Front" and "rear" are defined based on the front and rear of the all-terrain vehicle, with the front being in the front and the rear being in the rear. "Left" and "right" defined in this application are defined based on the left and right sides of the driver when the driver is driving the vehicle.

[0051] It should be noted that, unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present application. The terms used herein in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0052] It should be noted that although the specific embodiments of the present application are described in detail in conjunction with the accompanying drawings, this should not be construed as limiting the scope of protection of the present application. Within the scope described in the claims, various modifications and variations that can be made by those skilled in the art without creative work still fall within the scope of protection of the present application.

[0053] The examples of the embodiments of the present application are intended to concisely illustrate the technical features of the embodiments of the present application so that those skilled in the art can intuitively understand the technical features of the embodiments of the present application, and are not intended to be improper limitations of the embodiments of the present application.

[0054] 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 make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An all-terrain vehicle, characterized in that: include: An engine (10) comprising a cylinder (11); A muffler assembly (30) including an exhaust pipe (31); A first exhaust pipe (20), one end of which is connected to the exhaust port of the cylinder (11), and the other end of which is connected to the inlet of the muffler assembly (30); The exhaust gas generated by the engine (10) passes through the first exhaust pipe (20), the inlet of the muffler assembly (30), and the tail pipe (31) in sequence and is discharged into the atmosphere; The inner diameter of the first exhaust pipe (20) is R1, the inner diameter of the tail gas pipe (31) is R2, and 1.08≤R1 / R2≤1.

33.

2. The all-terrain vehicle according to claim 1, characterized in that: The muffler assembly (30) further comprises a second exhaust pipe (33) and a muffler body (32), wherein the second exhaust pipe (33) is connected to an inlet of the muffler body (32), and the tail pipe (31) is connected to an outlet of the muffler body (32); The all-terrain vehicle further comprises a first elastic member (40); the first exhaust pipe (20) is sealed on the second exhaust pipe (33), or the second exhaust pipe (33) is sealed on the first exhaust pipe (20); and the first elastic member (40) is connected between the outer surface of the first exhaust pipe (20) and the outer surface of the second exhaust pipe (33).

3. The all-terrain vehicle according to claim 2, characterized in that: A first hanging ring (21) is provided on the outer surface of the first exhaust pipe (20), a second hanging ring (331) is provided on the outer surface of the second exhaust pipe (33), and hooks are provided at both ends of the first elastic member (40) to be connected to the first hanging ring (21) and the second hanging ring (331) respectively.

4. The all-terrain vehicle according to claim 2, characterized in that: The number of the first elastic members (40) is at least three, and the at least three first elastic members (40) are evenly spaced and distributed around the first exhaust pipe (20).

5. The all-terrain vehicle according to claim 2, characterized in that: The all-terrain vehicle further comprises a first sealing member, which is sleeved on the first exhaust pipe (20) or the second exhaust pipe (33) and is located between the first exhaust pipe (20) and the second exhaust pipe (33).

6. The all-terrain vehicle according to claim 1, characterized in that: The first exhaust pipe (20) comprises a connecting section (22) and a first connecting seat (23), the cylinder (11) comprises a second connecting seat arranged at the exhaust port, the connecting section (22) is inserted into the exhaust port of the cylinder (11), and the first connecting seat (23) is connected to the second connecting seat.

7. The all-terrain vehicle according to claim 6, characterized in that: The connecting section (22) is inserted into the exhaust port of the cylinder (11) in a form-fitting manner.

8. The all-terrain vehicle according to claim 1, characterized in that: The all-terrain vehicle also includes a frame (51), and the muffler assembly (30) includes a first connecting portion (35) and a second connecting portion (36). The muffler assembly (30) is flexibly connected to the frame (51) via the first connecting portion (35) and the second connecting portion (36), wherein the first connecting portion (35) is located above the exhaust pipe (31), and the second connecting portion (36) is located below the exhaust pipe (31), wherein the number of the first connecting portions (35) is at least two.

9. The all-terrain vehicle according to claim 8, characterized in that: In the left-right direction, the two first connection parts (35) are respectively located on both sides of the center of the exhaust port of the cylinder (11).

10. The all-terrain vehicle according to claim 8, characterized in that: The all-terrain vehicle further comprises a muffler bracket (52), wherein the muffler bracket (52) is detachably mounted on the vehicle frame (51), and the second connecting portion (36) is connected to the muffler bracket (52).

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