CN210637133U

CN210637133U - Motorcycle exhaust muffler and motorcycle

Info

Publication number: CN210637133U
Application number: CN201920568017.5U
Authority: CN
Inventors: 陶环富
Original assignee: Chongqing Hengfu Electromechanical Manufacturing Co Ltd
Current assignee: Chongqing Hengfu Electromechanical Manufacturing Co Ltd
Priority date: 2019-04-24
Filing date: 2019-04-24
Publication date: 2020-05-29
Anticipated expiration: 2029-04-24

Abstract

The utility model discloses a motorcycle exhaust muffler, which comprises an exhaust pipe and a first silencing pipe, wherein the rear end of the exhaust pipe is connected with the front end of the first silencing pipe, the tail end of the first silencing pipe is provided with a first tail pipe, and a detachable back pressure tuning component is arranged in the first tail pipe; the back pressure tuning assembly consists of a second silencing pipe and an adjustable plug, and the adjustable plug can be selectively fixed at the tail part of the second silencing pipe; the utility model discloses simple structure, through set up detachable back pressure tuning subassembly in first amortization is intraductal, go at a high speed when the motorcycle needs, when the engine needs high-power output, the driver can get off back pressure tuning subassembly from first amortization intraductal portion dismantlement, when the motorcycle was gone on normal road at low speed, the motorcycle driver was installed back pressure tuning subassembly in the motorcycle amortization is intraductal to adjustable plug on the back pressure tuning subassembly can assemble through the locating hole on the selective and second amortization pipe of screw, adjust the back pressure size in the amortization pipe.

Description

Motorcycle exhaust muffler and motorcycle

Technical Field

The utility model relates to a motorcycle accessories and motorcycle field especially relate to a motorcycle exhaust silencer and motorcycle.

Background

The motorcycle is one of the common traffic tools in people's life, but the motorcycle all can send out the noise in the process of riding, and the exhaust noise of some motorcycles is very big, can cause the disturbing people. It is known that the main functions of an exhaust muffler for a motorcycle are to exhaust and muffler, but another function is to promote combustion by back pressure, so that the back pressure is one of the main factors affecting the exhaust sound. The back pressure refers to resistance encountered by gas exhausted by the engine in the process of exhausting through a pipeline, and the higher the back pressure is, the larger the exhaust resistance is, the lower the exhaust efficiency is, and the condition is suitable for exerting force at medium and low rotating speeds; on the contrary, the lower the back pressure is, the higher the exhaust efficiency is, and the engine is suitable for generating power at medium and high rotating speed.

Therefore, the back pressure function of the motorcycle silencer is very important, if the back pressure of the motorcycle is too small, the exhaust is too smooth, and the mixed gas which is not completely combusted can be exhausted, so that the energy waste is caused; if the back pressure of the motorcycle is too large, the exhaust of waste gas can be blocked, and the waste gas and the mixed gas are combusted together, so that the combustion efficiency is reduced, and the power of an engine is influenced. The existing motorcycle for racing requires the maximization of the power of an engine in order to ensure that the motorcycle can run at high speed during racing, so the exhaust efficiency of the motorcycle is very high, but the motorcycle has high exhaust efficiency in the back when running at low speed on a normal road, the air flow speed is high, the motorcycle is powerless, and huge noise is accompanied when the motorcycle runs at low speed.

Therefore, those skilled in the art have made efforts to develop an exhaust muffler for a motorcycle and a motorcycle that can reduce noise when a racing car is normally driven at a low speed.

Disclosure of Invention

In view of the above-mentioned defects of the prior art, the technical problem to be solved by the utility model is to provide a motorcycle exhaust silencer, its high-power output that can satisfy the cycle racing when going at a high speed can satisfy its low-speed forcefully traveling of noise on normal road again.

In order to achieve the purpose, the utility model provides a motorcycle exhaust silencer, which comprises an exhaust pipe and a first silencing pipe, wherein the rear end of the exhaust pipe is connected with the front end of the first silencing pipe, the tail end of the first silencing pipe is provided with a first tail pipe, and a detachable back pressure tuning component is arranged in the first tail pipe;

the back pressure tuning assembly is composed of a second silencing pipe and an adjustable plug, the rear portion of the second silencing pipe is arranged in the first tail pipe, a plurality of section-position vent holes are formed in the pipe wall of the front portion of the second silencing pipe, positioning holes matched with the vent holes are formed in the adjustable plug, and a tail pipe partition plate is arranged between the second silencing pipe and the first tail pipe.

Preferably, the tail pipe partition plate is arranged in the middle of the first tail pipe.

Preferably, the tail end of the first tail pipe is connected with a tail ring, an inner tail pipe is arranged in the tail ring, and the front end of the inner tail pipe is connected with the tail end of the second silencing pipe.

Preferably, the tail end of the first silencing pipe is sequentially provided with a first inner tail cover and an outer tail cover, the first inner tail cover is sleeved on the outer surface of the rear part of the first tail pipe, and the outer tail cover is sleeved on the outer surface of the tail ring.

Preferably, a second inner tail cover is arranged at the rear end of the inner tail pipe.

Preferably, the inner tail pipe is fixed in the tail ring through a nut.

Preferably, the pipe wall of the first silencing pipe is sequentially provided with a flame suppression net and a sound absorption surface layer from inside to outside, the flame suppression net is arranged in the pipe wall of the first silencing pipe through a hoop, and the silencing net is arranged in the first silencing pipe.

Preferably, the front end of the first silencing pipe is provided with a front cover, the front cover is connected with the tail end of the exhaust pipe through a liner pipe, and the outer surface of the matched part of the tail end of the exhaust pipe and the front end of the front cover is provided with a graphite sleeve.

Preferably, an exhaust pipe support is arranged on the exhaust pipe close to the first silencing pipe.

A motorcycle comprises an engine, and the exhaust manifold of the engine is connected with the motorcycle exhaust silencer.

The utility model discloses simple structure, through set up detachable back pressure tuning subassembly in first amortization intraductal, travel at a high speed when the motorcycle needs, when the engine needs high-power output, the driver can get off back pressure tuning subassembly from first amortization intraductal portion dismantlement, when the motorcycle is gone at the low-speed on normal road, motorcycle driver installs back pressure tuning subassembly in the motorcycle amortization intraductal, and the adjustable end cap on the back pressure tuning subassembly can assemble through the locating hole on the selective and second amortization pipe of screw, and then according to self actual demand, adjust the back pressure size in the amortization pipe, with this low-speed that adapts to the motorcycle is gone, the noise when having reduced the motorcycle low-speed and traveling, the phenomenon of motorcycle when having eliminated the low-speed simultaneously and traveling, the suitability of motorcycle is improved.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 3 is an enlarged schematic view of the structure at B in FIG. 1;

in the figure: 1-an exhaust pipe; 11-a graphite sleeve; 12-an exhaust pipe holder; 13-a connector; 14-a bushing;

2-a first silencer duct; 21-flame arresting net; 22-sound absorption surface layer; 23-hoop; 24-a sound-deadening net;

3-a first tailpipe;

4-back pressure tuning component; 41-a second silencer duct; 42-adjustable plugs; 43-a vent hole; 45-tailpipe baffle; 46-a nut; 47-inner tail tube; 48-second inner tail cap;

5-tail ring; 6-first inner tail cap; 7-outer tail cover; 8-front cover; 9-lining pipe.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples, wherein it is noted that, in the description of the invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular manner, and therefore should not be construed as limiting the present invention. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Example 1

As shown in fig. 1 to 3, a motorcycle exhaust muffler comprises an exhaust pipe 1 and a first silencing pipe 2, wherein the rear end of the exhaust pipe 1 is connected with the front end of the first silencing pipe 2, the tail end of the first silencing pipe 2 is provided with a first tail pipe 3, and a detachable back pressure tuning assembly 4 is arranged in the first tail pipe 3; when high power is needed, the back pressure tuning component 4 can be taken down, and when medium and low power is needed to be output, the back pressure tuning component 4 can be installed in the first tail pipe 3, so that the effects of reducing the air flow speed and adjusting the back pressure are achieved, the exhaust noise during low-speed driving is favorably reduced, and the weakness symptom during low-speed driving of the motorcycle is relieved. In addition, the back pressure tuning assembly 4 is composed of a second silencing tube 41 and an adjustable plug 42, the rear part of the second silencing tube 41 is arranged in the first tail tube 3, the back pressure tuning assembly 4 is composed of the second silencing tube 41 and the adjustable plug 42, the rear part of the second silencing tube 41 is arranged in the first tail tube 3, a plurality of section-position vent holes 43 are formed in the front tube wall, and positioning holes matched with the vent holes 43 are formed in the adjustable plug 42, so that the adjustable plug 42 penetrates through the vent holes 41a and the positioning holes 42a through screws to be fixed on the second silencing tube 41, and further adjustment of the displacement is achieved. Specifically, the number of the vent holes 43 is 40, and each 8 vent holes form a section, so that 5 sections of vent holes are formed in the front pipe wall of the second silencing pipe 41, the exhaust gas volume and the airflow speed of the motorcycle are more finely adjusted, and the effect of adjusting the back pressure of the silencer is achieved.

A tail pipe partition plate 45 is arranged between the second silencing pipe 41 and the first tail pipe 3, the tail pipe partition plate can be preferably used for supporting the second silencing pipe 41 and blocking airflow from directly flowing out of the first tail pipe, and the tail pipe partition plate 45 is arranged in the middle of the first tail pipe 3, so that the supporting force of the tail pipe partition plate 45 on the second silencing pipe 41 is more balanced, and the position fixing stability of the second silencing pipe 41 and the first tail pipe 3 is improved.

The tail end of the first tail pipe 3 is connected with a tail ring 5, an inner tail pipe 47 is arranged in the tail ring 5, and the front end of the inner tail pipe 47 is connected with the tail end of the second silencing pipe 41; after the back pressure tuning assembly 4 is installed, the gas can be refluxed conveniently, and the exhaust effect is achieved.

The tail end of the first silencing pipe 2 is sequentially provided with a first inner tail cover 6 and an outer tail cover 7, the first inner tail cover 6 is sleeved on the outer surface of the rear part of the first tail pipe 3, and the outer tail cover 7 is sleeved on the outer surface of the tail ring 5; the stability of the tail pipe structure of the silencer is improved under high-power output when the back pressure tuning component 4 is not installed; noise generated by vibration of the tail pipe is avoided; when the back pressure tuning unit 4 is mounted, a second inner tail cap 48 is provided at the rear end of the inner tail pipe 47, in order to further stabilize the structure of the inner tail pipe 47 and prevent unnecessary noise.

The inner tail pipe 47 is fixed in the tail ring 5 through a nut 46 and a matched bolt, and the whole back pressure tuning assembly 4 is favorably detached from the first tail pipe 3.

In order to further promote the ability of making an uproar that falls in the first hush pipe 2, the pipe wall intermediate layer of first hush pipe 2 is filled with and inhales sound surface course 22, the inside of first hush pipe 2 is equipped with hush net 24, simultaneously in order to the mode not burn abundant mist in the hush pipe burning blow out blowout flame, it has been equipped with one deck flame retardant net 21 to inhale the internal surface of sound surface course, flame retardant net 21 passes through staple bolt 23 fixed stay at inhaling sound surface course 22 internal surface, be favorable to the firm fixing of flame retardant net in the silencer, reach the flame retardant effect.

The front end of first hush pipe 2 is equipped with protecgulum 8, and protecgulum 8 passes through bushing pipe 9 and exhaust pipe 1's end-to-end connection, is favorable to the steadiness that exhaust pipe 1 and first hush pipe are connected, in addition, in order to promote the leakproofness that exhaust pipe 1 and first hush pipe are connected, is equipped with graphite sleeve 11 on the terminal of exhaust pipe 1 and the surface of 8 front ends of protecgulum cooperations.

An exhaust pipe bracket 12 is arranged on the exhaust pipe 1 close to the first silencing pipe 2, which is beneficial to stably installing the exhaust pipe on the motorcycle.

When the muffler is used, the muffler is directly connected to an engine of a motorcycle through the connector 13 and the bushing 14 at the front end of the exhaust pipe, when the motorcycle needs to be driven in environments like racing, a driver can disassemble the back pressure tuning assembly 4 in the first muffler pipe, so that the muffler can be ensured to have large exhaust volume, and the maximum output of the power of the engine of the motorcycle is further met; when the motorcycle needs to run at a low speed on a normal road, the back pressure tuning assembly 4 is installed in the first silencing pipe, and the back pressure in the silencing pipe is adjusted by adjusting the assembling position of the positioning hole in the adjustable plug and the second silencing pipe by a driver, so that the requirement of specific low-speed driving is met, the condition that huge noise is generated when the motorcycle runs at a low speed is avoided, and the problem that the motorcycle is weak when the motorcycle runs at a low speed is solved.

Example 2

A motorcycle comprises an engine, and the exhaust muffler of the motorcycle is connected to an exhaust manifold of the engine.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. A motorcycle exhaust muffler comprises an exhaust pipe (1) and a first silencing pipe (2); the rear end of the exhaust pipe (1) is connected with the front end of the first silencing pipe (2); the method is characterized in that: the tail end of the first silencing pipe (2) is provided with a first tail pipe (3); a detachable back pressure tuning component (4) is arranged in the first tail pipe (3);

the back pressure tuning assembly (4) consists of a second silencing pipe (41) and an adjustable plug (42); the rear part of the second silencing pipe (41) is arranged in the first tail pipe (3); the front pipe wall of the second silencing pipe (41) is provided with a plurality of sections of vent holes (43); the adjustable plug (42) is provided with a positioning hole matched with the vent hole (43); a tail pipe partition plate (45) is arranged between the second silencing pipe (41) and the first tail pipe (3).

2. The motorcycle exhaust muffler of claim 1, wherein: the tail pipe partition plate (45) is arranged in the middle of the first tail pipe (3).

3. The motorcycle exhaust muffler of claim 1, wherein: the tail end of the first tail pipe (3) is connected with a tail ring (5); an inner tail pipe (47) is arranged in the tail ring (5); the front end of the inner tail pipe (47) is connected with the tail end of the second silencing pipe (41).

4. A motorcycle exhaust muffler according to claim 3, wherein: the tail end of the first silencing pipe (2) is sequentially provided with a first inner tail cover (6) and an outer tail cover (7); the first tail pipe (3) is sleeved with the first tail cover (6); the outer tail cover (7) is sleeved on the outer surface of the tail ring (5).

5. A motorcycle exhaust muffler according to claim 3, wherein: and a second inner tail cover (48) is arranged at the rear end of the inner tail pipe (47).

6. The motorcycle exhaust muffler of claim 4, wherein: the inner tail pipe (47) is fixed in the tail ring (5) through a nut (46).

7. The motorcycle exhaust muffler of claim 1, wherein: the pipe wall of the first silencing pipe (2) is sequentially provided with a flame-proof net (21) and a sound-absorbing surface layer (22) from inside to outside; the flame-proof net (21) is arranged in the pipe wall of the first sound-proof pipe (2) through a hoop (23); a silencing net (24) is arranged inside the first silencing pipe (2).

8. The motorcycle exhaust muffler of claim 1, wherein: the front end of the first silencing pipe (2) is provided with a front cover (8); the front cover (8) is connected with the tail end of the exhaust pipe (1) through a liner pipe (9); and a graphite sleeve (11) is arranged on the outer surface of the matching part of the tail end of the exhaust pipe (1) and the front end of the front cover (8).

9. A motorcycle exhaust muffler according to any one of claims 1 to 8, wherein: an exhaust pipe support (12) is arranged on the part, close to the first silencing pipe (2), of the exhaust pipe (1).

10. A motorcycle comprises an engine and is characterized in that: an exhaust manifold of the engine to which is attached an exhaust muffler for a motorcycle as claimed in any one of claims 1 to 9.