Pipeline silencer with air inlet pipe structure

Abstract

The utility model discloses a pipeline silencer with an air inlet pipe structure, which comprises an outer silencing pipe and a pipeline body, the pipeline body is sleeved with an inner silencing pipe, the inner silencing pipe is sleeved with the outer silencing pipe, the inner silencing pipe is provided with a spiral groove, the outer silencing pipe is provided with a sound absorption groove, and the spiral groove and the sound absorption groove are communicated with each other. And the spiral groove communicates with the interior of the sound absorption groove, the top of the spiral groove communicates with an L-shaped pipe, and the end, away from the spiral groove, of the L-shaped pipe communicates with the interior of the sound absorption groove. According to the technical scheme, through mutual cooperation of the sound absorption grooves, the spiral grooves, the first sound absorption cotton, the sound absorption holes, the second sound absorption cotton and other components, multiple effective sound absorption can be conducted, so that effective sound attenuation can be conducted, the sound attenuation efficiency and the use efficiency are improved, effective protection can be conducted, a pipeline body is not prone to being damaged, and the service life of the pipeline is prolonged. The protection efficiency is improved, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of pipeline technology, and in particular to a pipeline silencer with an air intake pipe structure. Background Technology

[0002] With continuous social progress and development, people's technological level is also constantly improving, and their requirements for quality of life are gradually increasing. In order to reduce the pitch of noise, duct silencers are generally needed. A duct silencer is used for airflow ducts that also transmit noise. For example, a duct silencer with an air intake pipe structure disclosed in application number 202023318050.4 solves the problem of inconvenience in connecting the silencer body and the air intake pipe body, improves the convenience of operation for operators, greatly saves the operation time of operators, and improves practicality.

[0003] However, the above structure cannot effectively absorb sound in multiple ways during use, thus failing to effectively silence the sound, reducing its silencing efficiency and usage efficiency. Furthermore, it cannot provide effective protection, which can easily damage the pipe body, reducing its protection efficiency and shortening its service life. Therefore, we propose a pipe silencer with an air inlet pipe structure. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a pipe silencer with an air intake pipe structure that can perform multiple effective sound absorption, thereby enabling it to effectively silence, improve its silencer efficiency and usage efficiency, and provide effective protection, making it less likely to be damaged by the pipe body, thus improving its protection efficiency and extending its service life.

[0005] To achieve the above objectives, a duct muffler with an intake pipe structure is provided, comprising: an outer muffler pipe and a duct body, wherein an inner muffler pipe is sleeved over the duct body and the inner muffler pipe is sleeved inside the outer muffler pipe, the inner muffler pipe has a spiral groove, the outer muffler pipe has a sound-absorbing groove, and the spiral groove and the sound-absorbing groove are connected internally, the top of the spiral groove is connected to an L-shaped pipe, and the end of the L-shaped pipe away from the spiral groove is connected to the interior of the sound-absorbing groove, and the end of the spiral groove away from the sound-absorbing groove is close to the top and fits against the outer wall of the duct body.

[0006] According to the aforementioned pipe muffler with an air inlet pipe structure, an air inlet pipe is sleeved on the top of the pipe body, and an air outlet pipe is sleeved on the bottom of the pipe body.

[0007] According to the aforementioned pipe silencer with an air inlet pipe structure, both the air inlet pipe and the air outlet pipe are fitted with protective pipes, and the opposite ends of the two protective pipes are respectively connected to the top and bottom of the outer silencer pipe, and the end of the protective pipe that is far away from the outer silencer pipe is closed.

[0008] According to the aforementioned pipe silencer with an air intake pipe structure, a first sound-absorbing cotton is sleeved inside the protective pipe, and a second sound-absorbing cotton is sleeved between the outer silencer pipe and the pipe body near the bottom.

[0009] According to the aforementioned pipe silencer with an air intake pipe structure, a groove is formed on the side of the first sound-absorbing cotton opposite to the air intake pipe, and an L-shaped groove is connected between the groove and the outer silencer pipe.

[0010] According to the aforementioned pipe silencer with an air intake pipe structure, the inner silencer pipe and the second sound-absorbing cotton are each provided with a number of evenly distributed sound-absorbing holes.

[0011] The above solution has at least one of the following beneficial effects: This technical solution, through the cooperation between components such as sound-absorbing groove, spiral groove, first sound-absorbing cotton, sound-absorbing hole and second sound-absorbing cotton, enables it to perform multiple effective sound absorption, thereby enabling it to effectively reduce noise, improving its noise reduction efficiency and usage efficiency, and providing effective protection, making it less likely to cause damage to its pipe body, improving its protection efficiency and extending its service life.

[0012] Additional aspects and advantages of this invention 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 invention. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0014] Figure 1 This is a front perspective view of the present invention;

[0015] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure;

[0016] Figure 3 for Figure 2 Enlarged view of point A in the image;

[0017] Figure 4 for Figure 1 Partial 3D view of components such as the L-shaped tube and the inner silencer tube.

[0018] Legend:

[0019] 1. External silencer pipe; 2. Protective pipe; 3. Air inlet pipe; 4. Pipe body; 5. Internal silencer pipe; 6. Sound absorption groove; 7. Spiral groove; 8. L-shaped pipe; 9. First sound-absorbing cotton; 10. L-shaped groove; 11. Groove; 12. Sound absorption hole; 13. Second sound-absorbing cotton; 14. Air outlet pipe. Detailed Implementation

[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0021] Reference Figures 1 to 4 This utility model discloses a pipe muffler with an air intake structure, comprising an outer muffler pipe 1 and a pipe body 4. An inner muffler pipe 5 is fitted over the pipe body 4 and is fitted inside the outer muffler pipe 1. The inner muffler pipe 5 has a spiral groove 7, and the outer muffler pipe 1 has a sound-absorbing groove 6. The spiral groove 7 is connected to the interior of the sound-absorbing groove 6. An L-shaped pipe 8 is connected to the top of the spiral groove 7, and the end of the L-shaped pipe 8 away from the spiral groove 7 is connected to the interior of the sound-absorbing groove 6. The end of the spiral groove 7 away from the sound-absorbing groove 6 is close to the top and fits against the outer wall of the pipe body 4.

[0022] An air inlet pipe 3 is fitted onto the top of the pipe body 4, and an air outlet pipe 14 is fitted onto the bottom of the pipe body 4. This structure enables multiple effective sound absorption processes, thereby achieving effective noise reduction and improving its noise reduction efficiency and overall usability.

[0023] Both the intake pipe 3 and the exhaust pipe 14 are fitted with protective pipes 2, with one end of each protective pipe 2 connected to the top and bottom of the outer silencer pipe 1, respectively. The end of the protective pipe 2 away from the outer silencer pipe 1 is closed. A first sound-absorbing cotton 9 is fitted inside the protective pipe 2, and a second sound-absorbing cotton 13 is fitted between the outer silencer pipe 1 and the pipe body 4 near the bottom. A groove 11 is formed on the side of the first sound-absorbing cotton 9 opposite to the intake pipe 3, and an L-shaped groove 10 connects the groove 11 to the outer silencer pipe 1. Several evenly distributed sound-absorbing holes 12 are formed on both the inner silencer pipe 5 and the second sound-absorbing cotton 13. This structure provides effective protection, preventing damage to the pipe body 4, improving its protection efficiency, and extending its service life.

[0024] Working principle: In use, this technical solution first completes the installation and connection through the air inlet pipe 3 and the air outlet pipe 14. Then, the groove 11 and the L-shaped groove 10 guide the sound into the outer silencer pipe 1. At this time, the sound enters the spiral groove 7 and the sound absorption hole 12 on the inner silencer pipe 5. The spiral groove 7 and the sound absorption hole 12 on the inner silencer pipe 5 are connected, so that the sound is absorbed in the spiral groove 7 and the sound absorption hole 12 and guided to the sound absorption groove 6 through the L-shaped pipe 8. Finally, the sound is guided to the lower L-shaped groove 10 and groove 11 through the sound absorption hole 12 of the second sound-absorbing cotton 13, so that it can perform multiple effective sound absorptions, thereby effectively silencing the sound and improving its silencing efficiency and usage efficiency. The pipe body 4 is placed inside the inner silencer pipe 5 and the protective pipe 2, so that it can be effectively protected and is not easily damaged, thereby improving its protection efficiency and extending its service life.

[0025] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A pipe silencer with an air intake pipe structure, characterized in that, include: An outer silencer pipe (1) and a pipe body (4) are provided. An inner silencer pipe (5) is fitted over the pipe body (4), and the inner silencer pipe (5) is fitted inside the outer silencer pipe (1). A spiral groove (7) is provided on the inner silencer pipe (5), and a sound-absorbing groove (6) is provided on the outer silencer pipe (1). The spiral groove (7) is connected to the interior of the sound-absorbing groove (6). An L-shaped pipe (8) is connected to the top of the spiral groove (7), and the end of the L-shaped pipe (8) that is away from the spiral groove (7) is connected to the interior of the sound-absorbing groove (6). The end of the spiral groove (7) that is away from the sound-absorbing groove (6) is close to the top and fits against the outer wall of the pipe body (4).

2. A pipe silencer with an air intake pipe structure according to claim 1, characterized in that, An air inlet pipe (3) is fitted onto the top of the pipe body (4), and an air outlet pipe (14) is fitted onto the bottom of the pipe body (4).

3. A pipe silencer with an air intake pipe structure according to claim 1, characterized in that, The air inlet pipe (3) and the air outlet pipe (14) are both fitted with protective pipes (2), and the opposite ends of the two protective pipes (2) are respectively connected to the top and bottom of the outer silencer pipe (1). The end of the protective pipe (2) that is far away from the outer silencer pipe (1) is closed.

4. A pipe silencer with an air intake pipe structure according to claim 3, characterized in that, The protective tube (2) is fitted with a first sound-absorbing cotton (9), and the outer silencer tube (1) and the pipe body (4) are fitted with a second sound-absorbing cotton (13) near the bottom.

5. A pipe silencer with an air intake pipe structure according to claim 4, characterized in that, The first sound-absorbing cotton (9) has a groove (11) on the side opposite to the air inlet pipe (3), and the groove (11) is connected to the outer silencer pipe (1) by an L-shaped groove (10).

6. A pipe silencer with an air intake pipe structure according to claim 1, characterized in that, The inner silencing tube (5) and the second sound-absorbing cotton (13) are each provided with a number of evenly distributed sound-absorbing holes (12).

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