Air draft system with noise reduction function

Abstract

The air draft system with the noise reduction function comprises a noise reduction pipe body, an inner pipe body is connected in the noise reduction pipe body in a sleeved mode, the right side of the inner pipe body is closed, the right side of the noise reduction pipe body is connected with a noise reduction cover through a bolt, the left side of the noise reduction cover is open, and the right side of the noise reduction cover is connected with a fan. An exhaust fan is connected into the silencing cover through bolts, a funnel pipe is connected between the top and the bottom of an inner cavity of the inner pipe body, an air guide opening is formed in the left side of the funnel pipe, mounting grooves are formed in the tops and the bottoms of the inner cavities of the silencing pipe body and the inner pipe body correspondingly, and the right sides of the mounting grooves communicate with air guide grooves. And the right side of the air guide groove is communicated and connected with the interior of the silencing cover. According to the technical scheme, the silencing pipe body, the silencer, the buffer spring, the piston piece, the air guide groove and other components are matched with one another, so that effective shunting can be carried out, air can be dispersed and guided out, vibration can be effectively reduced, effective silencing can be carried out, and the silencing efficiency of the silencer is improved.

Description

Technical Field

[0001] This utility model relates to the field of ventilation system technology, and in particular to a ventilation system with a noise reduction function. Background Technology

[0002] An exhaust system is a device or system that improves air circulation, removes harmful substances, or regulates the environment through forced ventilation. Its core function is to generate negative pressure using equipment such as fans to extract air from a specific area, thereby achieving purposes such as ventilation, heat dissipation, dust removal, or controlling the spread of pollutants. However, existing exhaust systems cannot effectively divert airflow during use, thus failing to disperse and exhaust the air effectively, and they also cannot effectively reduce vibration, resulting in ineffective noise reduction and lower noise reduction efficiency. Therefore, we propose an exhaust system with noise reduction capabilities. Utility Model Content

[0003] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a ventilation system with a noise reduction function that can effectively divert airflow, thereby dispersing and discharging the air, and effectively reducing vibration, thereby effectively reducing noise and improving its noise reduction efficiency.

[0004] To achieve the above objectives, a ventilation system with a noise reduction function is provided, comprising: a noise reduction pipe body, an inner pipe body sleeved inside the noise reduction pipe body, the right side of the inner pipe body being closed, a noise reduction cover being bolted to the right side of the noise reduction pipe body, the left side of the noise reduction cover being open, a fan being bolted to the inside of the noise reduction cover, a funnel tube being connected between the top and bottom of the inner cavity of the inner pipe body, an air guide opening being provided on the left side of the funnel tube, mounting grooves being provided at the top and bottom of the inner cavities of the noise reduction pipe body and the inner pipe body, and an air guide groove being connected to the right side of the mounting groove, the right side of the air guide groove being connected to the inside of the noise reduction cover.

[0005] According to the exhaust system with silencing function, the right side of the silencing cover is connected to a vertical pipe by bolts, and the top and bottom of the vertical pipe are respectively closed. The right side of the silencing cover is connected to a connecting pipe near the top and bottom, and the right end of the connecting pipe is connected to the inside of the vertical pipe.

[0006] According to the ventilation system with silencing function, the top and bottom of the vertical pipe are respectively connected to a first row of air ducts, and the right side of the vertical pipe is connected to a plurality of evenly distributed second row of air ducts.

[0007] According to the aforementioned ventilation system with silencing function, a movable block is slidably connected in the mounting groove near the funnel tube, and a cylinder communicating with the mounting groove is connected to the top and bottom of the silencing tube, and a piston plate is slidably connected in the cylinder, with a connecting rod connecting the movable block and the piston plate.

[0008] According to the aforementioned ventilation system with silencing function, a buffer spring is bolted to the side of the piston plate that is away from the connecting rod, and the end of the buffer spring that is away from the piston plate is connected to the inner wall of the cylinder.

[0009] According to the exhaust system with silencing function, a silencer is sleeved on the left side of the inner tube, and a threaded pipe is bolted to the right side of the silencer, and the threaded pipe is threaded into the inner tube.

[0010] The above solution has at least one of the following beneficial effects: This technical solution, through the cooperation between components such as the silencer tube, silencer, buffer spring, piston plate and air guide groove, enables it to effectively divert airflow, thereby dispersing and discharging the air, and effectively reducing vibration, thus enabling it to effectively silence the air and improving its silencing efficiency.

[0011] 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

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0013] Figure 1 This is a front perspective view of the present invention;

[0014] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure;

[0015] Figure 3 for Figure 1 Enlarged view of point A in the image;

[0016] Figure 4 for Figure 1 Partial 3D view of components such as the central vertical pipe and connecting pipe.

[0017] Legend:

[0018] 1. Silencing pipe body; 2. Silencer; 3. Air vent; 4. Cylinder; 5. Silencing cover; 6. Vertical pipe; 7. First exhaust duct; 8. Second exhaust duct; 9. Inner pipe body; 10. Buffer spring; 11. Connecting rod; 12. Mounting groove; 13. Exhaust fan; 14. Threaded pipe; 15. Connecting pipe; 16. Air guide groove; 17. Piston plate; 18. Movable block; 19. Funnel pipe. Detailed Implementation

[0019] 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.

[0020] Reference Figures 1 to 4 This utility model provides a ventilation system with a noise reduction function, which includes a noise reduction pipe body 1, an inner pipe body 9 sleeved inside the noise reduction pipe body 1, and the right side of the inner pipe body 9 is closed. A noise reduction cover 5 is bolted to the right side of the noise reduction pipe body 1, and the left side of the noise reduction cover 5 is open. An exhaust fan 13 is bolted to the inside of the noise reduction cover 5. A funnel pipe 19 is connected between the top and bottom of the inner cavity of the inner pipe body 9. An air guide 3 is opened on the left side of the funnel pipe 19. Mounting grooves 12 are opened at the top and bottom of the inner cavities of the noise reduction pipe body 1 and the inner pipe body 9. An air guide groove 16 is connected to the right side of the mounting groove 12. The right side of the air guide groove 16 is connected to the inside of the noise reduction cover 5.

[0021] A vertical pipe 6 is bolted to the right side of the silencer hood 5, with the top and bottom of the vertical pipe 6 being closed. Connecting pipes 15 are connected to the right side of the silencer hood 5 near the top and bottom, with the right end of the connecting pipes 15 connected to the interior of the vertical pipe 6. The top and bottom of the vertical pipe 6 are connected to a first row of air ducts 7, and several evenly distributed second row of air ducts 8 are connected to the right side of the vertical pipe 6. This structure allows for effective airflow diversion, enabling the air to be dispersed and discharged.

[0022] A movable block 18 is slidably connected to the mounting groove 12 near the funnel tube 19. The top and bottom of the silencer tube 1 are respectively connected to a cylinder 4 communicating with the mounting groove 12. A piston plate 17 is slidably connected inside the cylinder 4. A connecting rod 11 connects the movable block 18 and the piston plate 17. A buffer spring 10 is bolted to the side of the piston plate 17 away from the connecting rod 11, and the end of the buffer spring 10 away from the piston plate 17 is connected to the inner wall of the cylinder 4. A silencer 2 is fitted on the left side of the inner tube 9, and a threaded pipe 14 is bolted to the right side of the silencer 2, and the threaded pipe 14 is threaded into the inner tube 9. This structure effectively reduces vibration, thereby achieving effective noise reduction and improving its noise reduction efficiency.

[0023] Working principle: In use, the exhaust pipe of the exhaust fan 13 is first connected to the inside of the funnel pipe 19. Then, the exhaust fan 13 draws in air through the silencer 2, the inner pipe 9 and the air guide 3. The air force then pushes open the movable block 19, causing the connecting rod 11 to drive the connecting rod 17 to slide inside the cylinder 4 and squeeze the buffer spring 10. At this time, the air is guided into the silencer 5 through the two air guide slots 16. Then, the air is guided into the vertical pipe 6 through the connecting pipe 15, and finally discharged through the first row of air pipes 7 and the second row of air pipes 8. This allows for effective air diversion, which disperses and discharges the air, effectively reduces vibration, and thus effectively silences the air, improving its silencing efficiency.

[0024] 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 system for extracting air with sound attenuation, characterized in that, Include: The muffler body (1), the inner tube body (9) is sleeved in the muffler body (1), and the right side of the inner tube body (9) is closed, the right side of the muffler body (1) is connected with the muffler cover (5) through the bolt, and the left side of the muffler cover (5) is open, the muffler cover (5) is connected with the exhaust fan (13) through the bolt, and the inner cavity of the inner tube body (9) is connected with the funnel pipe (19) between the top and bottom, the left side of the funnel pipe (19) is provided with the air guide (3), the inner cavity of the muffler body (1) and the inner tube body (9) is provided with the installation groove (12) on the top and bottom, and the right side of the installation groove (12) is connected with the air guide groove (16), the right side of the air guide groove (16) is connected with the inside of the muffler cover (5).

2. The sound-absorbing and air-extracting system according to claim 1, wherein The right side of the muffler cover (5) is connected with the vertical pipe (6) through the bolt, and the top and bottom of the vertical pipe (6) are closed, respectively, the right side of the muffler cover (5) is connected with the communication pipe (15) near the top and bottom, respectively, and the right end of the communication pipe (15) is connected with the inside of the vertical pipe (6).

3. The sound-absorbing and air-extracting system according to claim 2, wherein The top and bottom of the vertical pipe (6) are connected with the first exhaust pipe (7), respectively, and the right side of the vertical pipe (6) is connected with a plurality of uniformly distributed second exhaust pipes (8).

4. The sound-absorbing and air-extracting system according to claim 1, wherein The movable block (18) is connected in the installation groove (12) near the funnel pipe (19), the top and bottom of the muffler body (1) are connected with the cylinder (4) connected with the installation groove (12), respectively, and the piston sheet (17) is connected in the cylinder (4), the movable block (18) and the piston sheet (17) are connected with the butt joint rod (11).

5. The sound-absorbing exhaust system according to claim 4, wherein The side, away from the piston sheet (17) and the butt joint rod (11), is connected with the buffer spring (10) through the bolt, and the end, away from the piston sheet (17), of the buffer spring (10) is connected to the inner wall of the cylinder (4).

6. The sound-absorbing and air-extracting system according to claim 1, wherein The left side of the inner tube body (9) is provided with the muffler (2), and the right side of the muffler (2) is connected with the threaded pipe (14) through the bolt, and the threaded pipe (14) is connected in the inner tube body (9) through the thread.

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