Silencer and motorcycle

Abstract

The utility model discloses a silencer and motorcycle relates to motorcycle technical field, including outer cylinder body, inner cylinder body, pass through the tail pipe of inner cylinder body and be equipped with the tail cover on the outer cylinder body, be equipped with the rear end cover in the outer cylinder body, be equipped with the thermal insulation board on the rear end cover, the tail pipe passes through the rear end cover and the thermal insulation board and is fixedly connected with the rear end cover, and the tail cover is equipped with the thermal insulation board on the rear end cover. A tail cover bracket for mounting a tail cover is arranged on the heat insulation plate; the multi-layer heat insulation mode of the heat insulation plate and the rear end cover is adopted, the structure is simple, the technology is reliable, under the condition that the tail cover is protected, the development and manufacturing cost can be reduced, meanwhile, the supporting strength between the outer barrel body and the inner barrel body can be improved, meanwhile, the tail cover support can separate the tail cover from the heat insulation plate, heat transfer can be reduced, and the tail cover is protected.

Description

Technical Field

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

[0002] The motorcycle muffler is an indispensable part in the history of motorcycle development, and the history of motorcycle muffler development is as long as that of motorcycles. After the engine works, the exhaust stroke follows. Exhaust is to discharge the exhaust gas in the cylinder. Since the exhaust gas at this time is high temperature and high pressure, it will be very noisy if it is directly discharged from the exhaust pipe. The function of the muffler is simply to gradually attenuate the noise after the airflow discharged by the engine passes through the porous pipe and baffle in the muffler and repeatedly revolves, so as to achieve the purpose of muffler. The existing motorcycle muffler generally includes a steel muffler shell, an air inlet pipe and an air outlet pipe. The outer cylinder of the muffler is connected to the inner cylinder through a front cover and a rear cover. The muffler material is filled between the outer cylinder and the inner cylinder. Due to the material and installation position of the motorcycle muffler itself, the heat damage problem of the motorcycle muffler is widespread. At present, the design of heat insulation structure, the addition of anti-scalding parts, the improvement of the heat resistance of parts, the pasting of reflective film and other methods have become the mainstream measures to solve the heat damage problem, but they all have the problems of complex structure and high cost. Utility Model Content

[0003] In view of this, the utility model provides a muffler and a motorcycle, which can prevent the tail cover of the muffler from being damaged by heat and solve the problem of heat damage to the muffler.

[0004] The muffler and motorcycle provided by the utility model adopt the following technical solutions:

[0005] A muffler comprises an outer cylinder, an inner cylinder, a tail pipe passing through the inner cylinder and a tail cover arranged on the outer cylinder, wherein a rear end cover is arranged in the outer cylinder, a heat insulation plate is arranged on the rear end cover, the tail pipe passes through the rear end cover and the heat insulation plate and is fixedly connected to the rear end cover, and a tail cover bracket for mounting the tail cover is arranged on the heat insulation plate.

[0006] By adopting the above technical solution, the multi-layer insulation method of the heat insulation board and the rear end cover has a simple structure and reliable process. Under the condition of protecting the tail cover, the development and manufacturing costs can be reduced, and the supporting strength between the outer cylinder and the inner cylinder can be increased. At the same time, the tail cover bracket can separate the tail cover from the heat insulation board, which can reduce heat transfer and protect the tail cover.

[0007] Furthermore, the rear end cover is recessed into the outer cylinder to form a heat insulation cavity between the heat insulation plate.

[0008] By adopting the above technical solution, the heat insulation cavity can isolate the influence of the radiant heat of the rear end cover on the tail cover, and at the same time increase the heat transfer distance, which can protect the tail cover.

[0009] Furthermore, the tail cover bracket is provided with a plurality of legs for mounting on the heat insulation board.

[0010] By adopting the above technical solution, the support legs are longer and are welded and fixed on the heat insulation board. The longer support legs can reduce heat transfer and protect the tail cover.

[0011] Furthermore, a rear baffle is provided in the inner cylinder, the rear baffle is located on the inner side of the rear end cover, a cavity is left between the rear baffle and the rear end cover, and the tail pipe passes through the rear baffle and is fixedly connected to the rear baffle.

[0012] By adopting the above technical solution, the cavity between the rear baffle and the rear end cover can reduce the heat transfer and lower the temperature of the rear end cover, the heat insulation plate and the tail cover bracket. At the same time, the arrangement of the heat insulation plate, the rear end cover and the rear baffle has the function of supporting the tail pipe, which can improve the strength, reduce the vibration of the tail pipe, and reduce the noise caused by vibration.

[0013] Furthermore, the cavity between the rear baffle and the rear end cover is filled with heat insulating material.

[0014] By adopting the above technical solution, the heat insulation material is glass fiber, which can directly block the high temperature in the muffler barrel from transmitting to the rear, greatly reducing the temperature of the rear end cover, the heat insulation board and the tail cover bracket.

[0015] A motorcycle adopts the muffler in the above technology.

[0016] In summary, the present invention has at least one of the following beneficial effects:

[0017] 1. The multi-layer heat insulation method of the heat insulation board, the rear end cover and the rear partition has a simple structure and reliable process. It can reduce the development and manufacturing costs while protecting the rear cover, and at the same time increase the support strength between the inner and outer cylinders;

[0018] 2. The multi-layer protective structure design of heat insulation board, rear cover, rear partition and glass fiber filling can effectively protect the tail cover;

[0019] 3. The arrangement of the heat shield, rear end cover and rear bulkhead has the function of supporting the tail pipe, which can improve the strength, reduce the vibration of the tail pipe and reduce the noise caused by vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods 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 The structure of the embodiment of the utility model is shown in FIG. Figure 1 ;

[0022] Figure 2 The structure of the embodiment of the utility model is shown in FIG. Figure 2 ;

[0023] Figure 3 It is a partial cross-sectional view of an embodiment of the utility model.

[0024] Description of reference numerals:

[0025] 1. Outer cylinder; 11. Rear end cover; 12. Heat insulation board; 13. Tail cover bracket; 14. Heat insulation cavity; 15. Support foot; 2. Inner cylinder; 21. Rear partition; 3. Tail pipe; 4. Tail cover. DETAILED DESCRIPTION

[0026] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0027] The following is combined with Figure 1-3 The utility model is described in further detail.

[0028] The utility model embodiment discloses a muffler and a motorcycle. Figure 1-Figure 3 The muffler comprises an outer cylinder 1, an inner cylinder 2, a tail pipe 3 passing through the inner cylinder 2 and a tail cover 4 arranged on the outer cylinder 1. The outer cylinder 1 and the inner cylinder 2 are filled with a muffler material, which is glass fiber. A rear end cover 11 is arranged in the outer cylinder 1, and a heat insulation board 12 is arranged on the rear end cover 11. The tail pipe 3 passes through the rear end cover 11 and the heat insulation board 12 and is fixedly connected with the rear end cover 11. A tail cover bracket 13 for mounting the tail cover 4 is arranged on the heat insulation board 12. The tail cover bracket 13 is welded and fixed on the heat insulation board 12. The tail cover 4 is mounted on the tail cover bracket 13 through a clamp nut. The multi-layer heat insulation method of the heat insulation board 12 and the rear end cover 11 has a simple structure and reliable process. Under the condition of protecting the tail cover 4, the development and manufacturing costs can be reduced, and the supporting strength between the outer cylinder 1 and the inner cylinder 2 can be increased. At the same time, the tail cover bracket 13 can separate the tail cover 4 from the heat insulation board 12, which can reduce heat transfer and protect the tail cover 4.

[0029] In this embodiment, the rear end cover 11 is recessed into the outer cylinder 1 to form an insulating cavity 14 between the insulating plate 12. The insulating cavity 14 can isolate the influence of the radiant heat of the rear end cover 11 on the tail cover 4, while increasing the heat transfer distance, which can protect the tail cover 4.

[0030] In this embodiment, the tail cover bracket 13 is provided with a plurality of legs 15 for mounting on the heat insulation board 12. There are three legs 15, and the three legs 15 are relatively long and are welded and fixed on the heat insulation board 12. The longer legs 15 can reduce heat transfer and protect the tail cover 4.

[0031] In this embodiment, a rear baffle 21 is provided in the inner cylinder 2, and the rear baffle 21 is located on the inner side of the rear end cover 11. A cavity is left between the rear baffle 21 and the rear end cover 11. The tail pipe 3 passes through the rear baffle 21 and is fixedly connected to the rear baffle 21. The cavity between the rear baffle 21 and the rear end cover 11 can reduce the transfer of heat, and reduce the temperature of the rear end cover 11, the heat insulation board 12 and the tail cover bracket 13. At the same time, the arrangement of the heat insulation board 12, the rear end cover 11 and the rear baffle 21 has the function of supporting the tail pipe 4, which can improve the strength, reduce the vibration of the tail pipe 4, and reduce the noise caused by the vibration.

[0032] In this embodiment, the cavity between the rear partition 21 and the rear end cover 11 is filled with insulation material, which is glass fiber, which can directly block the high temperature in the muffler cylinder from transmitting to the rear, thereby significantly reducing the temperature of the rear end cover 11, the insulation board 12 and the tail cover bracket 13.

[0033] A motorcycle adopts the muffler in the above technology.

[0034] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A muffler, characterized in that: The invention comprises an outer cylinder (1), an inner cylinder (2), a tail pipe (3) passing through the inner cylinder (2), and a tail cover (4) arranged on the outer cylinder (1); a rear end cover (11) is arranged in the outer cylinder (1); a heat insulation board (12) is arranged on the rear end cover (11); the tail pipe (3) passes through the rear end cover (11) and the heat insulation board (12) and is fixedly connected to the rear end cover (11); and a tail cover bracket (13) for mounting the tail cover (4) is arranged on the heat insulation board (12).

2. The muffler according to claim 1, characterized in that: The rear end cover (11) is recessed into the outer cylinder (1) to form a heat insulation cavity (14) between the heat insulation plate (12).

3. The muffler according to claim 1, characterized in that: The tail cover bracket (13) is provided with a plurality of supporting feet (15) for being mounted on the heat insulation board (12).

4. The muffler according to claim 1, characterized in that: A rear baffle (21) is arranged inside the inner cylinder (2), the rear baffle (21) is located on the inner side of the rear end cover (11), a cavity is left between the rear baffle (21) and the rear end cover (11), and the tail pipe (3) passes through the rear baffle (21) and is fixedly connected to the rear baffle (21).

5. The muffler according to claim 4, characterized in that: The cavity between the rear baffle (21) and the rear end cover (11) is filled with heat insulation material.

6. A motorcycle, characterized in that: The present invention comprises a muffler as described in any one of claims 1 to 5.

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