CN218235206U - Exhaust silencer of sanitation vehicle - Google Patents

Abstract

The utility model provides an exhaust silencer of a sanitation vehicle, wherein the left end and the right end of the shell are respectively provided with a sealing cover; the inner cavity of the shell is divided into four chambers from left to right through a first partition plate, a second partition plate and a third partition plate which are sequentially arranged from left to right, wherein the four chambers are a first chamber, a second chamber, a third chamber and a fourth chamber from left to right; the first silencing pipe is communicated with the vehicle exhaust port and the second chamber, the second silencing pipe is communicated with the first chamber and the third chamber, and the third silencing pipe is inserted into the fourth chamber from the right side of the shell; and a plurality of hollow pipes communicated with chambers on two sides of the first partition plate and the third partition plate are respectively arranged on the first partition plate and the third partition plate. The utility model discloses can help the complete machine noise reduction, it is simultaneously fire-retardant, anti-seismic performance good, effectively improve the quality of complete machine.

Description

Exhaust silencer of sanitation vehicle

Technical Field

The utility model relates to a muffler equipment, concretely relates to sanitation vehicle exhaust silencer.

Background

As is well known, an automobile muffler is a device for reducing exhaust noise of an automobile engine, and is widely applied to the field of automobile manufacturing, and as one of main vibration sources, vibration of the engine is transmitted to the muffler, so that the structure of the muffler is damaged, and outward radiation noise on the surface of the muffler is caused; as one of the main noise sources, exhaust noise of an engine affects external noise generated when a vehicle operates, and a muffler is used as the most common method for reducing exhaust noise. At present, the original muffler of the engineering vehicle adopts a straight-through pipe structure, the insertion loss (muffling amount) is small, and gasoline combustion residues are easy to bring into the surrounding environment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an exhaust silencer of a sanitation vehicle.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a sanitation vehicle exhaust muffler, the left and right ends of the shell are respectively provided with a sealing cover; the inner cavity of the shell is divided into four chambers from left to right through a first partition plate, a second partition plate and a third partition plate which are sequentially arranged from left to right, wherein the four chambers are a first chamber, a second chamber, a third chamber and a fourth chamber from left to right respectively; the first silencing pipe is communicated with the vehicle exhaust port and the second chamber, the second silencing pipe is communicated with the first chamber and the third chamber, and the third silencing pipe is inserted into the fourth chamber from the right side of the shell; the first partition plate and the third partition plate are respectively provided with a plurality of hollow pipes communicated with chambers on two sides of the first partition plate and the third partition plate; the first silencing pipe silencing part is arranged in the second chamber, the second silencing pipe silencing part is arranged in the third chamber, the third silencing pipe silencing part is arranged in the fourth chamber, and the end parts of the silencing parts of the first silencing pipe, the second silencing pipe and the third silencing pipe are sealed.

As the utility model discloses an preferably set up, first hush pipe, second hush pipe and all evenly distributed has a plurality of hush holes on the hush portion of third hush pipe.

As the preferred arrangement of the utility model, the aperture of the silencing hole is 2-4 mm.

As the preferred arrangement of the utility model, the inner wall of the shell is covered with the noise reduction layer and the perforated plate in sequence.

As the preferred arrangement of the utility model, the sound-deadening layer is made of the glass fiber sound-deadening cotton with the thickness of at least 10 mm.

As the preferred arrangement of the present invention, the thickness of the porous plate is at least 1mm.

As the preferred arrangement of the utility model, the shell is made of a metal titanium plate.

The utility model discloses possess following beneficial effect:

the utility model provides a sanitation vehicle exhaust muffler is with exhaust muffler adopts multistage amortization structure, has the characteristics that noise cancelling effect is good, through set up this silencer in vehicle vent-pipe department, avoids the waste gas that the vehicle produced to send at random along its blast pipe, can effectively reduce vibrations and noise that its exhaust waste gas brought when the engineering vehicle goes, has stronger anti mechanical shock performance and noise cancelling effect, can effectively reduce environmental noise pollution; meanwhile, the silencer can eliminate sparks in the silencer cavity, so that the flame-retardant effect is achieved; to summer up, the utility model discloses can help the complete machine noise reduction, fire-retardant, anti-seismic performance is good simultaneously, effectively improves the quality of complete machine.

Drawings

Fig. 1 is a schematic view of the exhaust muffler structure of the sanitation vehicle of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, a muffler for an exhaust of a sanitary vehicle, wherein sealing caps 2 are respectively installed at left and right ends of a housing 1; an inner cavity of the shell 1 is divided into four chambers from left to right through a first partition plate 3, a second partition plate 4 and a third partition plate 5 which are sequentially arranged, namely a first chamber 6, a second chamber 7, a third chamber 8 and a fourth chamber 9 from left to right; the silencer further comprises a first silencing pipe 10, a second silencing pipe 11 and a third silencing pipe 12, wherein the first silencing pipe 10 is communicated with a vehicle exhaust port and the second chamber 7, the second silencing pipe 11 is communicated with the first chamber 7 and the third chamber 8, and the third silencing pipe 12 is inserted into the fourth chamber 9 from the right side of the shell 1; the first partition plate 3 and the third partition plate 5 are respectively provided with a plurality of hollow pipes 13 communicated with chambers on two sides of the first partition plate and the third partition plate; the first silencing pipe 10 is arranged in the second chamber 7, the second silencing pipe 11 is arranged in the third chamber 8, the third silencing pipe 12 is arranged in the fourth chamber 9, and the end parts of the silencing parts of the first silencing pipe 10, the second silencing pipe 11 and the third silencing pipe 12 are closed.

As a preferable configuration of the embodiment of the present invention, a plurality of muffling holes 14 are uniformly and densely distributed in the muffling portions of the first muffling pipe 10, the second muffling pipe 11, and the third muffling pipe 12.

As the preferred setting of the embodiment of the present invention, further, the aperture of the muffling hole 14 is 2-4 mm.

As a preferable configuration of the embodiment of the present invention, further, the inner wall of the housing 1 is covered with the sound attenuation layer 15 and the porous plate 16 in this order.

As a preferred arrangement of the embodiment of the present invention, the sound-deadening layer 15 is made of glass fiber sound-deadening cotton having a thickness of at least 10 mm.

As a preferred arrangement of the embodiment of the present invention, the perforated plate 16 has a thickness of at least 1mm.

As the preferred setting of the embodiment of the utility model, the shell 1 is made of a metal titanium plate.

During operation, waste gas discharged when the sanitation vehicle runs enters the first silencing pipe 10 from a vehicle exhaust port, enters the second chamber 7 under the blocking and filtering of the silencing holes 14 on the first silencing pipe 10, enters the first chamber 6 through the hollow pipe 13, is filled into the third chamber 8 after being blocked and filtered through the silencing holes 14 on the second silencing pipe 11, and is analogized in turn until being discharged from the third silencing pipe 13, so that all silencing and filtering operations are completed. The high-temperature and high-pressure flue gas exhausted by the sanitation vehicle passes through the first silencing pipe 10, the second silencing pipe 11 and the third silencing pipe 13 for multiple times of blocking and filtering, so that the exhaust noise is greatly reduced. In addition, the silencing pipes are fixed with the partition plate, looseness caused by exhaust vibration is avoided, and the silencing pipe has better mechanical vibration resistance.

To sum up, the utility model provides an exhaust muffler for sanitation vehicle exhaust muffler adopts multistage amortization structure, has the characteristics that the noise cancelling effect is good, through set up this muffler in vehicle blast pipe department, avoids the vehicle to produce the waste gas and sends out at random along its blast pipe, can effectively reduce vibrations and the noise that its exhaust gas brought when the engineering vehicle goes, has stronger anti mechanical shock performance and noise cancelling effect, can effectively reduce environmental noise pollution; meanwhile, the silencer can eliminate sparks in the silencer cavity, so that the flame-retardant effect is achieved; to summer up, the utility model discloses can help the complete machine noise reduction, fire-retardant, anti-seismic performance is good simultaneously, effectively improves the quality of complete machine.

Moreover, those skilled in the art will appreciate that although some embodiments described herein include some features included in other embodiments, not other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims above, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

Claims (7)

1. An exhaust silencer of a sanitation vehicle is characterized in that sealing covers are respectively arranged at the left end and the right end of a shell; the inner cavity of the shell is divided into four chambers from left to right through a first partition plate, a second partition plate and a third partition plate which are sequentially arranged from left to right, wherein the four chambers are a first chamber, a second chamber, a third chamber and a fourth chamber from left to right; the first silencing pipe is communicated with the vehicle exhaust port and the second chamber, the second silencing pipe is communicated with the first chamber and the third chamber, and the third silencing pipe is inserted into the fourth chamber from the right side of the shell; the first partition plate and the third partition plate are respectively provided with a plurality of hollow pipes communicated with chambers on two sides of the first partition plate and the third partition plate; the first silencing pipe silencing part is arranged in the second chamber, the second silencing pipe silencing part is arranged in the third chamber, the third silencing pipe silencing part is arranged in the fourth chamber, and the end parts of the silencing parts of the first silencing pipe, the second silencing pipe and the third silencing pipe are sealed.

2. The sanitation vehicle exhaust muffler according to claim 1, wherein a plurality of muffling holes are uniformly distributed in the muffling portions of the first, second and third muffling pipes.

3. The sanitation vehicle exhaust muffler according to claim 1, wherein the muffler hole has a diameter of 2 to 4mm.

4. The sanitation vehicle exhaust muffler of claim 1, wherein the inner wall of the housing is covered with a sound deadening layer and a perforated plate in this order.

5. The sanitation vehicle exhaust muffler of claim 4, wherein the sound-deadening layer is made of fiberglass sound-deadening cotton having a thickness of at least 10 mm.

6. The sanitation vehicle exhaust muffler of claim 4, wherein the perforated plate has a thickness of at least 1mm.

7. The sanitation vehicle exhaust muffler of claim 4, wherein the housing is formed of a metallic titanium plate.

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