CN217712736U - Noise-reduction environment-friendly motorcycle exhaust pipe - Google Patents

Abstract

The utility model provides a noise-reducing environment-friendly motorcycle exhaust pipe, which comprises an air inlet unit, a purification unit and a noise elimination unit; the air inlet unit is arranged at the rightmost end, an air inlet of the air inlet unit is bent in a J shape, the air inlet unit is inserted into the center of the right side of the purification unit through a guide pipe, the purification unit is sequentially provided with a filter and a catalysis chamber from an air inlet direction to an air outlet direction, and a partition plate is arranged between the filter and the catalysis chamber; the purifying unit is connected with the silencing unit through a guide pipe, the guide pipe and the silencing unit are coaxially arranged, a plurality of communicated silencing chambers are arranged in the silencing unit, the silencing chambers are conical, the conical angles are sequentially arranged from small to large in the direction from the air inlet to the air outlet, and a layer of sound insulation cotton is wrapped on the outer ring of each silencing chamber; the utility model has the advantages that the tail gas purification and noise elimination are carried out step by step through the separated purification unit and noise elimination unit, thereby prolonging the working time of the tail gas catalyst and improving the purification efficiency; the muffler structure is improved to reduce exhaust sound.

Description

Noise-reduction environment-friendly motorcycle exhaust pipe

Technical Field

The invention relates to the field of motorcycle exhaust pipes, in particular to a noise-reducing environment-friendly motorcycle exhaust pipe.

Background

The motorcycle has the characteristics of small volume, high speed, strong maneuverability, good off-road property, simple and convenient operation and the like, and is widely applied to the fields of patrol, passenger and goods transportation and the like. Along with the gradual improvement of social and economic level and environmental protection requirements, the emission standard of the motorcycle is increasingly strict, and simultaneously, in order to improve the use comfort of the motorcycle, the requirements of people on the exhaust noise and the exhaust quality of the motorcycle are higher and higher. Motorcycle exhaust system mainly comprises blast pipe, silencer and clarifier combination generally for purify tail gas and weaken exhaust sound, current silencer and clarifier group are mostly the integral type structure, simple structure, and tail gas flow path is shorter, is unfavorable for weakening exhaust sound and purification exhaust, and the problem becomes urgent of affairs above the solution.

Present silencer and clarifier group are mostly the integral type structure, simple structure, and tail gas flow path is shorter, is unfavorable for weakening exhaust sound and purification exhaust.

Disclosure of Invention

In view of the above shortcomings of the prior art, an object of the present invention is to provide a noise reduction environment-friendly motorcycle exhaust pipe for solving the difficulties of the prior art, comprising: an air intake unit 100, a purification unit 200, and a muffler unit 300; the air inlet unit 100 is arranged at the rightmost end, the air inlet 101J-shaped bend of the air inlet unit 100 is 90 degrees, so that ventilation is smoother, the left end of the air inlet 101 is in sealing connection with the purification unit 200 through the first flange 201, so that the air tightness of the exhaust pipe is guaranteed, and a plurality of screw holes are distributed on the second flange 102 along the circumference; the air inlet unit 100 is inserted into the center of the right side of the purification unit 200 through a conduit, the purification unit 200 is sequentially divided into a filter 202 and a catalytic chamber 203 from the air inlet direction to the air outlet direction, and a partition plate is arranged between the filter 202 and the catalytic chamber 203; the guide pipe and the silencing unit 300 are coaxially arranged, a plurality of communicated silencing chambers 301 are arranged in the silencing unit 300, and a layer of sound insulation cotton 302 wraps the outer rings of the silencing chambers 301; an activated carbon adsorption device is arranged in the filter 202 to adsorb harmful particles in waste; a circular vent hole is formed in a partition plate between the filter 202 and the catalytic chamber 203, and a support structure is formed between a plurality of reinforcing ribs and the upper wall and the lower wall of the purification unit 200, so that the purification unit 200 is more stable in structure; six communicated conical chambers are arranged in the silencing chamber 301 from the air inlet to the air outlet, and are respectively a first chamber 3011, a second chamber 3012, a third chamber 3013, a fourth chamber 3014, a fifth chamber 3015 and a sixth chamber 3016 in the direction from the air inlet 101 to the air outlet, wherein the conical angles are arranged from small to large; the first cavity 3011 has a cone angle of 79 degrees, the second cavity 3012 has a cone angle of 77 degrees, the third cavity 3013 has a cone angle of 73 degrees, the fourth cavity 3014 has a cone angle of 69 degrees, the fifth cavity 3015 has a cone angle of 63 degrees, and the sixth cavity 3016 has a cone angle of 49 degrees; the width of the plurality of sound attenuation chambers 301 decreases in sequence; the gas outlet of the silencing unit 300 is provided with a tail gas content analyzer 303 for detecting whether the discharged tail gas reaches the standard, and the gas outlet of the silencing unit 300 is honeycomb-shaped so as to facilitate the discharge of the tail gas.

According to a preferred embodiment, the air intake unit 100, the purification unit 200, and the muffler unit 300 are welded to form an integrated structure.

According to a preferred embodiment, the gas inlet 101 of the gas inlet unit 100 is bent in a J shape, and the bent angle is 90 degrees to facilitate gas delivery.

According to preferred scheme, install a plurality of strengthening ribs on the baffle, make the baffle more firm, increase of service life.

According to a preferred embodiment, the number of chambers is 6, which is the most cost-effective number of sound-attenuating units.

According to a preferred embodiment, the first cavity 3011 has a cone angle of 79 degrees, the second cavity 3012 has a cone angle of 77 degrees, the third cavity 3013 has a cone angle of 73 degrees, the fourth cavity 3014 has a cone angle of 69 degrees, the fifth cavity 3015 has a cone angle of 63 degrees, and the sixth cavity 3016 has a cone angle of 49 degrees.

According to a preferred solution, the plurality of muffling chambers 301 decrease in width in sequence.

According to the preferred scheme, a tail gas content analyzer 303 is installed at the gas outlet of the silencing unit 300, so that the tail gas emission can be conveniently monitored in real time.

According to a preferred embodiment, the exhaust gas analyzer 303 is sanfeng HPC501.

According to a preferable scheme, the sound insulation cotton 302 material is preferably a glass fiber needled blanket.

Compared with the prior art, this patent, the advantage lies in: through the separated purification unit and the silencing unit, the tail gas is purified and silenced step by step, so that the working time of a tail gas catalyst is prolonged, and the purification efficiency is improved; the muffler structure is improved to reduce exhaust sound.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 shows a cross-sectional view of the present invention;

100. an air intake unit; 101. an air inlet; 102. a second flange; 200. a purification unit; 201. a first flange; 202. filter 203, catalytic chamber; 204. reinforcing ribs; 300. a sound attenuation unit; 301. a sound attenuation chamber; 3011. a first chamber; 3012. a second chamber; 3013. a third chamber; 3014. a fourth chamber; 3015. a fifth chamber; 3016. a sixth chamber; 302. sound insulation cotton; 303. an off-gas content analyzer 303.

Detailed Description

In order to make the technical solution of the present invention's purpose, technical solution and advantages clearer, the following description will be combined with the drawings of the specific embodiments of the present invention, to carry out clear and complete description on the technical solution of the embodiments of the present invention. Like reference numerals in the drawings denote like elements. It should be noted that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

Possible embodiments within the scope of the invention may have fewer components, have other components not shown in the figures, different components, differently arranged components or differently connected components, etc. than the embodiments shown in the figures. Further, two or more of the components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as a plurality of separate components.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

The utility model provides an environment-friendly motorcycle blast pipe of making an uproar falls for in the motorcycle blast pipe field technology, the utility model discloses do not restrict tail gas content analyzer 303's type, nevertheless should detect during the structure specially adapted falls the environment-friendly motorcycle blast pipe of making an uproar.

Generally, the present invention provides a noise-reducing environment-friendly motorcycle exhaust pipe, which mainly comprises an air intake unit 100, a purification unit 200 and a noise elimination unit 300, wherein, referring to fig. 1, the arrangement relationship of the air intake unit 100, the purification unit 200 and the noise elimination unit 300 can be shown.

The rightmost end of the air inlet unit 100 is provided with an air inlet 101, a second flange 102 disc which is connected in a sealing manner is arranged on the air inlet 101 to ensure the air tightness of the device, the air inlet 101 is fixedly installed with a motorcycle through a screw hole on the second flange 102 disc, the air inlet 101 of the air inlet unit 100 is bent in a J shape, the bending angle is 90 degrees, the ventilation efficiency of an air inlet pipe reaches the highest degree under the angle, the air inlet unit 100 is inserted into the center of the right side of the purification unit 200 through a conduit, the purification unit 200 is provided with a filter 202 and a catalysis chamber 203 from the air inlet direction to the air outlet direction, the inlet of the filter 202 is provided with a filter screen, when tail gas enters the filter 202 through the conduit, fine particles in the tail gas are firstly filtered by the filter screen, an active carbon adsorption device is arranged in the filter 202 and used for filtering the fine particles which cannot be filtered by the filter screen, a plurality of reinforcing ribs 204 which are arranged up and down are arranged on the partition board to form a supporting structure with the upper wall and the lower wall of the purification unit 200, the structure of the purification unit 200 is more stable, the tail gas enters the catalytic chamber 203 through the circular vent holes on the vent partition plate, harmful gases such as nitrogen oxides in the tail gas are decomposed and converted into harmless gases meeting the emission requirements under the action of a catalyst, the purification unit 200 is connected with the noise elimination unit 300 through a guide pipe, the guide pipe and the noise elimination unit 300 are coaxially arranged, a plurality of communicated noise elimination chambers 301 are arranged in the noise elimination unit 300, the conical angles of the gas inlets 101 in the direction of the gas outlets are sequentially arranged from small to large, the conical angle of the first chamber 3011 is 79 degrees, the conical angle of the second chamber 3012 is 77 degrees, the conical angle of the third chamber 3013 is 73 degrees, the conical angle of the fourth chamber 3014 is 69 degrees, the conical angle of the fifth chamber 3015 is 63 degrees, the conical angle of the sixth chamber 3016 is 49 degrees, sound has the effect of attenuating the transmission of sound at the bottom of the chamber cone in the process of transmitting the sound from the first chamber 3011 to the sixth chamber 3016, the waste gas is subjected to multiple reflection, collision and expansion, energy is consumed layer by layer, and the waste gas is expanded step by step to form a vortex to slow down the impact speed, the attenuation of the noise at a continuously reduced angle is exponentially increased, and the widths of the plurality of silencing chambers 301 are reduced in sequence to have the effect of multi-stage attenuation on the transmission of sound; noise elimination cavity 301 outer lane parcel one deck glass fiber acupuncture blanket sound insulation cotton 302 plays the effect of strengthening syllable-dividing, and noise elimination unit 300 gas outlet is installed three feng HPC501 tail gas content analysis ware 303 and is monitored whether the exhaust tail gas purifies the completion, and noise elimination unit 300 gas outlet is cellular, makes things convenient for the tail gas to discharge.

The working principle is as follows: harmful tail gas enters the purification unit 200 from the gas inlet unit 100, primary filtration is carried out by a filter screen, and fine particles in the tail gas are filtered; the activated carbon device is subjected to secondary filtration, fine particles which cannot be filtered by the filter screen are filtered, and purification is finished; the six muffling chambers 301 of the muffling unit 300 gradually decrease the harmful noise to finally reach the safe noise level.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention shall be covered by the claims of the present invention.

Claims (7)

1. The utility model provides a noise reduction environment-friendly motorcycle blast pipe, includes air intake unit (100), purification unit (200) and noise elimination unit (300), its characterized in that:

the air inlet unit (100) is arranged at the rightmost end, an air inlet (101) of the air inlet unit (100) is bent in a J shape, and the air inlet unit (100) is inserted into the center of the right side of the purification unit (200) through a conduit;

the purification unit (200) is sequentially provided with a filter (202) and a catalysis chamber (203) from an air inlet direction to an air outlet direction, and a partition plate is arranged between the filter (202) and the catalysis chamber (203);

the purifying unit (200) is connected with the silencing unit (300) through a guide pipe, the guide pipe and the silencing unit (300) are coaxially arranged, a plurality of communicated silencing chambers (301) are arranged in the silencing unit (300), the silencing chambers (301) are conical, the conical angles from the air inlet (101) to the air outlet are sequentially arranged from small to large, and the outer ring of the silencing chamber (301) is wrapped by a layer of sound insulation cotton (302).

2. The noise-reducing environment-friendly motorcycle exhaust pipe as claimed in claim 1, wherein the air inlet (101) is bent by 90 degrees, the left end of the air inlet (101) is hermetically connected with the purification unit (200) through a first flange (201), a second flange (102) is connected to the air inlet in the vertical direction, and a plurality of screw holes are distributed on the second flange (102) along the circumference.

3. The exhaust pipe for motorcycle according to claim 1, wherein the filter (202) is internally installed with an activated carbon adsorption device.

4. The exhaust pipe for the motorcycle according to claim 1, wherein a circular vent hole is formed in a partition plate between the filter (202) and the catalytic chamber (203), and a support structure is formed between a plurality of reinforcing ribs (204) arranged up and down and the upper and lower walls of the purification unit (200) on the partition plate.

5. The noise-reducing environment-friendly motorcycle exhaust pipe as claimed in claim 1, wherein six communicated conical chambers are arranged in the sound-deadening chamber (301) from the air inlet to the air outlet and are respectively a first chamber (3011), a second chamber (3012), a third chamber (3013), a fourth chamber (3014), a fifth chamber (3015) and a sixth chamber (3016), the conical angle of the first chamber (3011) is 79 degrees, the conical angle of the second chamber (3012) is 77 degrees, the conical angle of the third chamber (3013) is 73 degrees, the conical angle of the fourth chamber (3014) is 69 degrees, the conical angle of the fifth chamber (3015) is 63 degrees, and the conical angle of the sixth chamber (3016) is 49 degrees.

6. The exhaust pipe for a motorcycle according to claim 1, wherein the width of the plurality of muffling chambers (301) is sequentially reduced.

7. The noise-reducing environment-friendly motorcycle exhaust pipe according to claim 1, wherein a tail gas content analyzer (303) is installed at the air outlet of the noise-eliminating unit (300), and the air outlet of the noise-eliminating unit (300) is honeycomb-shaped.

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