Silencer exhaust pipe and motorcycle

Abstract

The utility model relates to a silencer exhaust pipe which comprises an outer pipe, an inner pipe and a supporting piece, both the outer pipe and the inner pipe are provided with bending portions, the inner pipe is used for communicating with an air cylinder exhaust port, and the supporting piece is arranged close to the bending portions of the outer pipe and the inner pipe and used for supporting the bending portions of the outer pipe and the inner pipe. The stability between the inner pipe and the outer pipe of the silencer is improved, the supporting piece plays a positioning role in the bending process, it is guaranteed that the centers of the inner pipe and the outer pipe are consistent, and the undesirable phenomena such as wrinkling are reduced, so that airflow circulation is guaranteed, the strength of the exhaust pipe is improved, and related damage caused by vibration in the whole vehicle running process can be effectively prevented.

Description

Technical Field

[0001] The utility model relates to the field of motorcycle accessories, in particular to a muffler exhaust pipe and a motorcycle. Background Art

[0002] Due to the structural limitations of V-twin motorcycles, there are generally two arrangements for mufflers. The first is to connect a muffler to each of the front and rear cylinder heads, and the second is to weld the two exhaust pipes connected to the front and rear cylinder heads into a whole, and the two rear cylinders are also welded into a whole, and then connected in the middle with a clamp. In the above scheme, the lower muffler exhaust pipe connected to the front cylinder head of the engine is too long (the vibration of the whole vehicle has a greater impact on it, and it is easy to damage the welding part), so there are high requirements for its structural stability and manufacturing process. V-twin motorcycles have problems such as structural stability caused by the excessive length of the lower muffler exhaust pipe.

[0003] Therefore, how to avoid the structural stability problem caused by the excessive length of the lower muffler exhaust pipe is a technical problem that urgently needs to be solved. Utility Model Content

[0004] In view of this, the utility model provides a muffler exhaust pipe, which improves its strength and structural stability, can effectively prevent vibration from damaging the welding parts during driving, and improves the reliability of the muffler exhaust pipe structure; the second purpose of the utility model is to provide a motorcycle including the above-mentioned muffler exhaust pipe.

[0005] The utility model provides a muffler exhaust pipe adopts the following technical solution:

[0006] A muffler exhaust pipe comprises an outer pipe, an inner pipe and a support member, wherein the outer pipe and the inner pipe both have a bending portion, the inner pipe is used for communicating with a cylinder exhaust port, the support member is arranged close to the bending portions of the outer pipe and the inner pipe, and the support member is used for supporting the bending portions of the outer pipe and the inner pipe.

[0007] Optionally, the support member has a protrusion, and the protrusion is used to be fixedly connected to the outer tube to form a gap between the outer tube and the inner tube.

[0008] Optionally, the support member is arranged near the corresponding bending portion and is relatively evenly distributed on the exhaust pipe.

[0009] Optionally, the outer contour of the support member is fixedly connected to the inner contour of the outer tube, and the inner contour of the support member is fixedly connected to the outer contour of the inner tube.

[0010] Optionally, at least two bending portions are provided, and each bending portion is correspondingly provided with a supporting member.

[0011] Optionally, the front and rear ends of the outer tube and the inner tube are welded.

[0012] Optionally, the support member is welded to the outer tube by plug welding.

[0013] In order to achieve the above-mentioned second purpose, the present invention also provides a motorcycle, which includes any one of the above-mentioned muffler exhaust pipes. Since the above-mentioned muffler exhaust pipe has the above-mentioned technical effects, the motorcycle having the muffler exhaust pipe should also have corresponding technical effects.

[0014] To sum up, the utility model includes at least one of the following beneficial technical effects: the stability between the inner tube and the outer tube of the muffler is improved, and the support member plays a positioning role when bending, ensuring that the centers of the inner and outer tubes are consistent, reducing undesirable phenomena such as wrinkling, thereby ensuring airflow flow, increasing the strength of the exhaust pipe, and effectively preventing related damage caused by vibration during the driving of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the muffler exhaust pipe of the utility model embodiment installed on a motorcycle;

[0016] Figure 2 It is a partial cross-sectional view of the muffler exhaust pipe of an embodiment of the utility model;

[0017] Figure 3 yes Figure 2 A schematic diagram of the enlarged structure of the AA part;

[0018] Figure 4 yes Figure 2 Schematic diagram of the enlarged structure of parts B and C;

[0019] Figure 5 It is a structural schematic diagram of a support member of an embodiment of the utility model.

[0020] Explanation of the accompanying drawings: 1. outer tube; 2. inner tube; 3. support member; 4. bending portion. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-5 The utility model is described in further detail.

[0022] The utility model embodiment discloses a muffler exhaust pipe.

[0023] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5A muffler exhaust pipe includes an outer pipe 1, an inner pipe 2 and a support 3. The outer pipe 1 and the inner pipe 2 both have a bending portion. The inner pipe 2 is used to flow with the cylinder exhaust port. The support 3 is arranged close to the bending portion of the outer pipe 1 and the inner pipe 2. The support 3 is used to support the bending portion of the outer pipe 1 and the inner pipe 2, thereby improving the stability between the inner pipe 2 and the outer pipe 1 of the muffler. The support 3 plays a positioning role when bending, ensuring that the centers of the inner and outer pipes 1 are consistent, reducing undesirable phenomena such as wrinkling, thereby ensuring the airflow flow, increasing the strength of the exhaust pipe, and effectively preventing related damage caused by vibration during the driving of the vehicle.

[0024] There are at least two bending parts, each of which is provided with a support member 3. The number of bending parts 4 is determined according to the length and applicability of the exhaust pipe. In this embodiment, there are two bending parts 4, each of which is provided with a support member 3.

[0025] In this embodiment, the support member 3 is arranged near the corresponding bending portion 4 (arranged close to the bending portion 4) and is relatively evenly distributed on the exhaust pipe. When the inner tube 2 and the outer tube 1 are bent, the position of the inner tube 2 can be controlled in the center due to the arrangement of the support member 3. In addition, the strength of the exhaust pipe near the bending portion is improved by the support member 3, the deformation of the exhaust pipe during bending is reduced, and defects such as wrinkling and bulging are effectively reduced.

[0026] The support member 3 has a raised portion, which is used to be fixedly connected to the outer tube 1 to form a gap between the outer tube 1 and the inner tube 2. The gap can reduce the heat transferred from the inner tube 2 to the outer tube 1, effectively preventing the outer tube 1 from overheating. Due to the setting of the raised portion of the support member 3, the position of the inner tube 2 is controlled, the possibility of the inner tube 2 contacting the outer tube 1 is reduced, thereby ensuring that the temperature of the outer tube 1 is not overheated, and the phenomenon of excessive temperature on one side will not occur, thereby ensuring the uniformity of temperature.

[0027] The outer contour of the support member 3 is fixedly connected to the inner contour of the outer tube 1, and the inner contour of the support member 3 is fixedly connected to the outer contour of the inner tube 2, wherein the support member 3 is welded to the outer tube 1 by plug welding, which improves the stability of the connection and ensures the reliability of the fixation of the two.

[0028] The front and rear ends of the outer pipe 1 and the inner pipe 2 are welded, which increases the number of welding points between the inner and outer pipes 1 of the exhaust pipe and improves the strength and structural stability of the exhaust pipe.

[0029] The above structural design can effectively prevent damage to the welding parts caused by vibration during the driving of the motorcycle.

[0030] The implementation principle of the utility model is as follows: first, the support member 3 is placed near the bending position of the inner tube 2 of the muffler (the bending position is pre-set), and then the support member 3 and the inner tube 2 are welded together, and then the welded inner tube 2 is placed in the outer tube 1 for overall bending, and after bending, the support member 3 and the outer tube 1 are welded by plug welding so that the inner and outer tubes 1 and the support member 3 become a whole, and then the inner tube 2 and the outer tube 1 are welded at both ends.

[0031] The support member 3 can effectively improve the stability between the inner tube 2 and the outer tube 1 of the muffler, and play a positioning role when bending to ensure that the centers of the inner tube 2 and the outer tube 1 are consistent, reduce wrinkling and other undesirable phenomena, thereby ensuring the flow of air, increasing the strength of the exhaust pipe, and effectively preventing related damage caused by vibration during the driving of the vehicle. In particular, it effectively solves the structural stability problems caused by the excessive length of the lower muffler exhaust pipe of the V-twin prince vehicle.

[0032] The present invention also provides a motorcycle, which includes the above-mentioned muffler exhaust pipe. Since the motorcycle adopts all the above-mentioned technical solutions, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A muffler exhaust pipe, characterized in that: It includes an outer tube, an inner tube and a support member, wherein the outer tube and the inner tube both have a bending portion, the inner tube is used for communicating with the cylinder exhaust port, the support member is arranged close to the bending portions of the outer tube and the inner tube, and the support member is used for supporting the bending portions of the outer tube and the inner tube.

2. The muffler exhaust pipe according to claim 1, characterized in that: The support member has a protrusion, and the protrusion is used to be fixedly connected to the outer tube to form a gap between the outer tube and the inner tube.

3. The muffler exhaust pipe according to claim 1, characterized in that: The support members are arranged near the corresponding bending portions and are relatively evenly distributed on the exhaust pipe.

4. The muffler exhaust pipe according to claim 3, characterized in that: The outer contour of the support member is fixedly connected to the inner contour of the outer tube, and the inner contour of the support member is fixedly connected to the outer contour of the inner tube.

5. The muffler exhaust pipe according to claim 1, characterized in that: At least two bending portions are provided, and each bending portion is correspondingly provided with a supporting member.

6. The muffler exhaust pipe according to claim 1, characterized in that: The front and rear ends of the outer tube and the inner tube are welded.

7. The muffler exhaust pipe according to claim 1, characterized in that: The support member is welded to the outer tube by plug welding.

8. A motorcycle, characterized in that: The motorcycle is equipped with a muffler exhaust pipe as claimed in any one of claims 1 to 7.

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