CN210829449U - Noise silencer - Google Patents

Abstract

The utility model relates to a motorcycle silencer technical field, specifically the silencer, including the interface, first blast pipe, connector and a plurality of noise elimination unit, the noise elimination unit includes the urceolus, the inner tube, a plurality of baffles, the second blast pipe, the third blast pipe, amortization trachea and tail-hood, all be equipped with a plurality of through-holes on baffle and the inner tube, be equipped with a plurality of through-holes on the second blast pipe, amortization trachea one end and second blast pipe intercommunication, the amortization trachea other end passes a plurality of baffles and is located the cavity that is close to the tail-hood, be equipped with a plurality of through. This scheme all is equipped with a plurality of through-holes on baffle and blast pipe, changes the exhaust circuit through the effect of through-hole, has changed amortization resonance circuit, and amortization resonance circuit is more complicated, does not influence the exhaust simultaneously again, and noise cancelling effect is better, has solved the not good problem of prior art noise cancelling effect.

Description

Noise silencer

Technical Field

The utility model relates to a motorcycle silencer technical field specifically is the silencer.

Background

The motorcycle is one of important transportation tools, the noise pollution seriously affects the life quality of urban residents, and the existing motorcycle, especially the motorcycle with high power, can generate harsh noise when being filled with a fuel. The silencer is a noise reduction device for an airflow pipeline with noise transmission, such as a pipeline and an elbow with sound absorption linings or a pipeline with suddenly changed sectional area and other discontinuous acoustic impedances, and the like, so that the noise in the pipeline is attenuated or reflected.

As shown in fig. 6, the conventional motorcycle muffler includes an interface, a first exhaust pipe, a connector, an inner cylinder, an outer cylinder, a second exhaust pipe, three partition plates, two third exhaust pipes and a tail cover, the three partition plates are fixed in the inner cylinder and divide the inner cylinder into three independent chambers, one end of the first exhaust pipe is connected with the interface, the other end is located in the connector, one end of the second exhaust pipe is located in the chamber communicated with the inner cylinder, the other end of the second exhaust pipe penetrates through the chamber in the middle of the inner cylinder and is located in the chamber near the end of the tail cover, one end of the two third exhaust pipes is located in the chamber in the middle of the inner cylinder, the other end of the two third exhaust pipes penetrates through the tail cover and is communicated with the outside. Above-mentioned scheme reaches the noise reduction effect through changing the exhaust circuit, but exhaust circuit and amortization resonance circuit are a circuit among the above-mentioned scheme (the arrow direction in fig. 6 is exhaust circuit and amortization resonance circuit), and the blast pipe that basically leans on the connection communicates with each other between two cavities, and exhaust resistance is big, and sound is not good to be controlled, and the noise reduction effect is not good.

SUMMERY OF THE UTILITY MODEL

The utility model provides a silencer to solve the not good problem of prior art noise reduction effect.

In order to achieve the above object, the basic scheme of the present invention is as follows:

the silencer comprises an interface, a first exhaust pipe and a connecting body, wherein the first exhaust pipe is fixedly connected with the interface, the end part of the first exhaust pipe is positioned in the connecting body, the silencer also comprises a plurality of silencing units, each silencing unit comprises an outer barrel, an inner barrel, a plurality of partition plates, a second exhaust pipe, a third exhaust pipe, a silencing pipe and a tail cover, the outer barrel is fixedly connected with the connecting body, the inner barrel is fixedly connected in the outer barrel, the partition plates are fixed in the inner barrel, the connecting body and the tail cover are divided into a plurality of cavities by the partition plates, a plurality of through holes are formed in the partition plates and the inner barrel, one end of the second exhaust pipe is communicated with the connecting body, the other end of the second exhaust pipe penetrates through the partition plates and is positioned in the middle of the inner barrel, a plurality of through holes are formed in the second exhaust pipe, one end of the silencing, one end of the third exhaust pipe is located in the middle of the inner barrel, the other end of the third exhaust pipe penetrates through the tail cover after penetrating through the plurality of partition plates and is communicated with the outside, a plurality of through holes are formed in the third exhaust pipe, and the outer barrel of the silencing unit is fixedly connected with the connector and is sealed.

Further, the noise elimination unit is provided with two.

Furthermore, a plurality of through holes are formed in the first exhaust pipe.

Further, the baffle is equipped with three, connector is separated for first cavity, second cavity, resonant cavity room and buffering cavity by three baffles in proper order to the tailcap, second blast pipe both ends are located first cavity and second cavity respectively, amortization trachea both ends are located the second blast pipe respectively and buffer cavity room, third blast pipe both ends are located second cavity and tailcap outside respectively.

Further, still include the hangers, the hangers is fixed on the urceolus that the position is the highest.

Furthermore, a silencing cotton is fixed between the outer cylinder and the inner cylinder.

The beneficial effect of this scheme: (1) according to the scheme, the partition plate and the exhaust pipe are respectively provided with the plurality of through holes, and the exhaust line is changed under the action of the through holes, so that the exhaust line is smoother, the power loss of an engine is smaller, the power is better, and the vehicle speed is increased more quickly; on the other hand, the silencing resonance circuit is more complex by changing the silencing resonance circuit, and meanwhile, the exhaust is not influenced, and the silencing effect is better.

(2) This scheme has still set up the amortization trachea, makes amortization resonance circuit more complicated once more, has optimized the noise reduction effect once more.

(3) The exhaust line is optimized in the scheme, and after the exhaust line is smooth, the exhaust resistance of the engine is reduced, the exhaust is better, and the engine is more environment-friendly.

(4) This scheme is provided with a plurality of amortization units, when guaranteeing that the exhaust is smooth and easy, increases noise reduction effect to reach better noise cancelling effect.

(5) In the scheme, the third exhaust pipe is provided with the plurality of through holes, the third exhaust pipe is communicated with the resonant cavity through the through holes in the third exhaust pipe, and the resonant effect is achieved when the exhaust vibration frequency in the third exhaust pipe is inconsistent with the frequency in the resonant cavity.

Drawings

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

FIG. 2 is an isometric view of an embodiment of the present invention;

fig. 3 is a cross-sectional isometric view of an embodiment of the present invention;

FIG. 4 is a schematic view of an exhaust line in an embodiment of the present invention;

FIG. 5 is a schematic diagram of an embodiment of the present invention illustrating a silencing resonance circuit;

fig. 6 is a schematic diagram of a specific structure in the prior art.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the silencer comprises a connector 1, a first exhaust pipe 2, a connector 3, a hanging lug 4, an outer cylinder 5, an inner cylinder 6, a partition plate 7, a second exhaust pipe 8, a third exhaust pipe 9, a silencing air pipe 10, a tail cover 11, a first cavity 12, a second cavity 13, a resonance cavity 14, a buffer cavity 15 and silencing cotton 16.

Examples

Substantially as shown in figures 1, 2 and 3: the silencer comprises a connector 1, a first exhaust pipe 2, a connector 3, a hanging lug 4 and two silencing units, wherein the first exhaust pipe 2 is fixedly connected with the connector 1, the end part of the first exhaust pipe 2 is located in the connector 3, and a plurality of through holes are formed in the first exhaust pipe 2. The silencing unit comprises an outer barrel 5, an inner barrel 6, a plurality of partition plates 7, a second exhaust pipe 8, a third exhaust pipe 9, a silencing air pipe 10 and a tail cover 11, the outer barrel 5 is fixedly connected with the connecting body 3, the inner barrel 6 is fixedly connected in the outer barrel 5, and silencing cotton 16 is placed between the outer barrel 5 and the inner barrel 6. The partition plates 7 are three, the partition plates 7 are fixed in the inner cylinder 6, the connecting body 3 to the tail cover 11 are sequentially divided into a first cavity 12, a second cavity 13, a resonance cavity 14 and a buffer cavity 15 by the three partition plates 7, two ends of the second exhaust pipe 8 are respectively located in the first cavity 12 and the second cavity 13, two ends of the silencing air pipe 10 are respectively located in the second exhaust pipe 8 and the buffer cavity 15, and two ends of the third exhaust pipe 9 are respectively located outside the second cavity 13 and the tail cover 11. The partition plate 7, the inner cylinder 6, the second exhaust pipe 8 and the third exhaust pipe 9 are all provided with a plurality of through holes, and the outer cylinders 5 of the two silencing units are fixedly connected and sealed with the connecting body 3. The hanging lug 4 is fixed on the outer cylinder 5 with the highest position.

The specific implementation process is as follows: combine shown in fig. 4, the arrow direction of fig. 4 is exhaust circuit trend in this embodiment, and with prior art contrast, the exhaust circuit of this embodiment is simpler, smooth and easy to make engine power loss littleer, power is better, and the vehicle accelerates more, and engine exhaust resistance has reduced, and the emission is better, more environmental protection. As shown in fig. 5, the arrow direction in fig. 5 is the direction of the silencing resonance circuit in this embodiment, and compared with the prior art, the silencing resonance circuit in this embodiment is more complex and has better silencing effect.

The foregoing is merely an example of the present invention and common general knowledge in the art of known specific structures and/or features has not been set forth herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (6)

1. The silencer comprises an interface, a first exhaust pipe and a connector, wherein the first exhaust pipe is fixedly connected with the interface, and the end part of the first exhaust pipe is positioned in the connector, and is characterized in that: the silencer comprises an outer barrel, an inner barrel, a plurality of partition plates, a second exhaust pipe, a third exhaust pipe, a silencing air pipe and a tail cover, wherein the outer barrel is fixedly connected with a connector, the inner barrel is fixedly connected in the outer barrel, the partition plates are fixed in the inner barrel, the connector and the tail cover are separated into a plurality of cavities by the partition plates, a plurality of through holes are formed in the partition plates and the inner barrel, one end of the second exhaust pipe is communicated with the connector, the other end of the second exhaust pipe penetrates through the partition plates and is positioned in the middle of the inner barrel, a plurality of through holes are formed in the second exhaust pipe, one end of the silencing air pipe is communicated with the second exhaust pipe, the other end of the silencing air pipe penetrates through the partition plates and is positioned in the cavity close to the tail cover, one end of the third exhaust pipe is positioned in the middle of the, and the third exhaust pipe is provided with a plurality of through holes, and the outer cylinders of the silencing units are fixedly connected and sealed with the connector.

2. The muffler of claim 1, wherein: the noise elimination unit is provided with two.

3. The muffler of claim 2, wherein: a plurality of through holes are formed in the first exhaust pipe.

4. The muffler of claim 3, wherein: the baffle is equipped with three, connector is separated for first cavity, second cavity, resonant cavity room and buffering cavity by three baffles in proper order to the tailcap, second blast pipe both ends are located first cavity and second cavity respectively, amortization trachea both ends are located the second blast pipe respectively and buffer cavity room, third blast pipe both ends are located second cavity and tailcap outside respectively.

5. The muffler of claim 4, wherein: the hanging ring is fixed on the outer barrel with the highest position.

6. The muffler of claim 1, wherein: and silencing cotton is fixed between the outer cylinder and the inner cylinder.

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