CN223550077U - A duct muffler with an air intake structure - Google Patents

Abstract

The utility model discloses a pipeline muffler with an air inlet pipe structure, which comprises an external muffler pipe and a pipeline body, wherein an internal muffler pipe is sleeved outside the pipeline body, the internal muffler pipe is sleeved in the external muffler pipe, a spiral groove is formed in the internal muffler pipe, a sound absorption groove is formed in the external muffler pipe, the spiral groove is communicated and connected with the inside of the sound absorption groove, an L-shaped pipe is connected with the top of the spiral groove, and one end, far away from the spiral groove, of the L-shaped pipe is communicated and connected with the inside of the sound absorption groove. This technical scheme is through inhaling the mutual cooperation between the cotton etc. parts of sound groove, helicla flute, first sound absorption, sound absorption hole and second for it can carry out multiple effectual sound absorption, thereby makes it carry out effectual amortization, has improved its amortization efficiency and availability factor, and can carry out effectual protection, is difficult for making its pipeline body cause the damage, has improved its protection efficiency, has prolonged its life.

Description

Pipeline silencer with air inlet pipe structure

Technical Field

The utility model relates to the technical field of pipelines, in particular to a pipeline muffler with an air inlet pipe structure.

Background

With the continuous progress and development of society, the technological level of people is continuously improved, the requirements on life quality are also gradually improved, and in order to reduce the noise tone, a pipeline muffler is generally required, and the pipeline muffler refers to an air flow pipeline with noise transmission. The pipeline muffler with the air inlet pipe structure disclosed by the application number 202023318050.4 solves the problem that the muffler main body and the air inlet pipe main body are inconvenient to connect, improves the convenience of operation of operators, greatly saves the operation time of the operators, and improves the practicability.

However, the structure cannot perform multiple effective sound absorption during use, so that the structure cannot perform effective sound absorption, the sound absorption efficiency and the service efficiency of the structure are reduced, and the structure cannot perform effective protection, so that the pipeline body of the structure is easily damaged, the protection efficiency of the structure is reduced, and the service life of the structure is shortened, and therefore, the pipeline muffler with the air inlet pipe structure is provided.

Disclosure of utility model

The utility model aims to at least solve one of the technical problems in the prior art, and provides a pipeline muffler with an air inlet pipe structure, which can perform multiple effective sound absorption, so that the pipeline muffler can perform effective silencing, the silencing efficiency and the service efficiency of the pipeline muffler are improved, the pipeline muffler can be effectively protected, the pipeline body is not easy to damage, the protection efficiency of the pipeline muffler is improved, and the service life of the pipeline muffler is prolonged.

In order to achieve the above purpose, the pipeline muffler with the air inlet pipe structure comprises an outer muffler pipe and a pipeline body, wherein the pipeline body is externally sleeved with an inner muffler pipe, the inner muffler pipe is sleeved in the outer muffler pipe, a spiral groove is formed in the inner muffler pipe, a sound absorption groove is formed in the outer muffler pipe, the spiral groove is communicated and connected with the inside of the sound absorption groove, the top of the spiral groove is communicated and connected with an L-shaped pipe, one end, far away from the L-shaped pipe, of the L-shaped pipe is communicated and connected with the inside of the sound absorption groove, and one end, far away from the sound absorption groove, of the spiral groove is close to the top and is attached to the outer wall of the pipeline body.

According to the pipeline muffler with the air inlet pipe structure, the top of the pipeline body is sleeved with the air inlet pipe, and the bottom of the pipeline body is sleeved with the air outlet pipe.

According to the pipeline muffler with the air inlet pipe structure, the air inlet pipe and the air outlet pipe are sleeved with the protection pipes, the opposite ends of the protection pipes are respectively connected to the top and the bottom of the external silencing pipe, and the ends, far away from the external silencing pipe, of the protection pipes are closed.

According to the pipeline muffler with the air inlet pipe structure, the first sound-absorbing cotton is sleeved in the protective pipe, and the second sound-absorbing cotton is sleeved between the external sound-absorbing pipe and the pipeline body close to the bottom.

According to the pipeline muffler with the air inlet pipe structure, one side of the first sound absorbing cotton opposite to the air inlet pipe is provided with the groove, and an L-shaped groove is connected between the groove and the outer muffler pipe in a communicating manner.

According to the pipeline muffler with the air inlet pipe structure, the inner sound-absorbing pipe and the second sound-absorbing cotton are provided with a plurality of sound-absorbing holes which are uniformly distributed.

The technical scheme has the advantages that through the mutual matching among the parts such as the sound absorption groove, the spiral groove, the first sound absorption cotton, the sound absorption hole, the second sound absorption cotton and the like, the sound absorption groove can absorb sound in multiple and effective ways, so that the sound absorption groove can effectively damp sound, the sound absorption efficiency and the service efficiency of the sound absorption groove are improved, the sound absorption groove can effectively protect the sound absorption groove, the sound absorption groove is not easy to damage a pipeline body, the protection efficiency of the sound absorption groove is improved, and the service life of the sound absorption groove is prolonged.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described below with reference to the drawings and examples;

FIG. 1 is a front perspective view of the present utility model;

FIG. 2 is a schematic cross-sectional structure of FIG. 1;

FIG. 3 is an enlarged view at A in FIG. 2;

fig. 4 is a partial perspective view of the L-shaped tube, the inner sound-absorbing tube, and the like of fig. 1.

Legend description:

1. A sound tube; 2, a protective pipe, 3, an air inlet pipe, 4, a pipeline body, 5, an inner sound-absorbing pipe, 6, a sound-absorbing groove, 7, a spiral groove, 8, an L-shaped pipe, 9, first sound-absorbing cotton, 10, an L-shaped groove, 11, a groove, 12, a sound-absorbing hole, 13, second sound-absorbing cotton, 14 and an air outlet pipe.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

Referring to fig. 1 to 4, the pipe muffler with the air inlet pipe structure according to the embodiment of the utility model comprises an outer muffler pipe 1 and a pipe body 4, wherein an inner muffler pipe 5 is sleeved outside the pipe body 4, the inner muffler pipe 5 is sleeved in the outer muffler pipe 1, a spiral groove 7 is formed in the inner muffler pipe 5, a sound absorption groove 6 is formed in the outer muffler pipe 1, the spiral groove 7 is communicated with the inside of the sound absorption groove 6, the top of the spiral groove 7 is communicated with an L-shaped pipe 8, one end, far away from the spiral groove 7, of the L-shaped pipe 8 is communicated with the inside of the sound absorption groove 6, and one end, near the top, of the spiral groove 7, far away from the sound absorption groove 6 is attached to the outer wall of the pipe body 4. .

The top of the pipeline body 4 is sleeved with an air inlet pipe 3, and the bottom of the pipeline body 4 is sleeved with an air outlet pipe 14. Through this structure for it can carry out multiple effectual sound absorption, thereby makes it can carry out effectual amortization, has improved its amortization efficiency and availability factor.

The air inlet pipe 3 and the air outlet pipe 14 are sleeved with the protective pipe 2, one ends of the two protective pipes 2 opposite to each other are respectively connected to the top and the bottom of the external sound-absorbing pipe 1, one ends of the protective pipe 2 far away from the external sound-absorbing pipe 1 are closed, the protective pipe 2 is sleeved with the first sound-absorbing cotton 9, the part between the external sound-absorbing pipe 1 and the pipeline body 4, which is close to the bottom, is sleeved with the second sound-absorbing cotton 13, one side of the first sound-absorbing cotton 9, which is opposite to the air inlet pipe 3, is provided with the groove 11, the groove 11 is communicated with the external sound-absorbing pipe 1, the L-shaped groove 10 is connected with the internal sound-absorbing pipe 5, and the second sound-absorbing cotton 13 are provided with a plurality of evenly distributed sound-absorbing holes 12. Through this structure for it can carry out effectual protection, is difficult for making its pipeline body 4 cause the damage, has improved its protection efficiency, has prolonged its life.

The technical scheme is characterized in that when the sound-absorbing and sound-absorbing device is used, firstly, installation connection of the sound-absorbing and sound-absorbing device is completed through the air inlet pipe 3 and the air outlet pipe 14, then the sound is guided into the external sound-absorbing pipe 1 through the groove 11 and the L-shaped groove 10, at the moment, the sound enters the sound-absorbing holes 12 on the spiral groove 7 and the internal sound-absorbing pipe 5, the spiral groove 7 and the sound-absorbing holes 12 are communicated and connected, the sound is absorbed in the spiral groove 7 and the sound-absorbing holes 12 and is guided into the sound-absorbing groove 6 through the L-shaped pipe 8, and finally, the sound is guided into the L-shaped groove 10 and the groove 11 below through the sound-absorbing holes 12 of the second sound-absorbing cotton 13, so that the sound is subjected to multiple effective sound absorption, the sound absorption can be effectively carried out, the sound absorption efficiency and the use efficiency are improved, the pipeline body 4 is arranged in the internal sound-absorbing pipe 5 and the protection pipe 2, the effective protection is protected, the damage is not easy to cause the pipeline body 4, the protection efficiency is improved, and the service life is prolonged.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims (6)

1. The pipeline silencer with the air inlet pipe structure is characterized by comprising an outer silencing pipe (1) and a pipeline body (4), wherein an inner silencing pipe (5) is sleeved outside the pipeline body (4), the inner silencing pipe (5) is sleeved in the outer silencing pipe (1), a spiral groove (7) is formed in the inner silencing pipe (5), a sound absorbing groove (6) is formed in the outer silencing pipe (1), the spiral groove (7) is communicated with the inside of the sound absorbing groove (6), an L-shaped pipe (8) is connected to the top of the spiral groove (7), one end, far away from the spiral groove (7), of the L-shaped pipe is communicated with the inside of the sound absorbing groove (6), and one end, close to the top, of the spiral groove (7) far away from the sound absorbing groove (6) is attached to the outer wall of the pipeline body (4).

2. The pipeline muffler with the air inlet pipe structure according to claim 1, wherein the top of the pipeline body (4) is sleeved with an air inlet pipe (3), and the bottom of the pipeline body (4) is sleeved with an air outlet pipe (14).

3. The pipeline muffler with the air inlet pipe structure according to claim 1, wherein the air inlet pipe (3) and the air outlet pipe (14) are sleeved with the protection pipes (2), opposite ends of the two protection pipes (2) are respectively connected to the top and the bottom of the external muffler pipe (1), and one end, far away from the external muffler pipe (1), of the protection pipe (2) is in a closed arrangement.

4. A pipe silencer with an air inlet pipe structure according to claim 3, characterized in that the protection pipe (2) is sleeved with a first sound absorbing cotton (9), and a second sound absorbing cotton (13) is sleeved between the outer sound absorbing pipe (1) and the pipe body (4) near the bottom.

5. The pipeline muffler with the air inlet pipe structure according to claim 4, wherein the side of the first sound absorbing cotton (9) opposite to the air inlet pipe (3) is provided with a groove (11), and an L-shaped groove (10) is connected between the groove (11) and the outer muffler pipe (1) in a communicating manner.

6. The pipeline muffler with the air inlet pipe structure according to claim 1, wherein a plurality of sound absorption holes (12) which are uniformly distributed are formed in the inner sound absorption pipe (5) and the second sound absorption cotton (13).