A multi-stage silencer

Abstract

The utility model discloses a multi-stage silencer, which specifically relates to the technical field of silencers, including a support tube, a top cover is provided on the top of the support tube, two connecting pipes are provided between the top cover and the support tube, and multiple groups of silencer components for reducing noise are provided inside each connecting pipe; each group of silencer components includes a support isolation ring, and a silencer baffle is provided inside the top of the support isolation ring. The utility model can disperse the flow velocity of air through the arrangement of a first silencer mesh plate and a second silencer mesh plate to achieve the purpose of rapid silence, and the arrangement of multiple groups of silencer components can perform multi-level noise reduction on the sound, thereby ensuring the silencer effect of the utility model, and because the support tube, the two connecting pipes and the top cover are connected by flanges, the support tube, the two connecting pipes and the top cover can be disassembled by the staff, thereby achieving the purpose of convenient maintenance and repair of the silencer components and improving the convenience of the staff when repairing the equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of mufflers, and more specifically to a multi-stage muffler. Background Art

[0002] A muffler is a device that blocks sound transmission but allows airflow to pass through. It is an important measure to eliminate aerodynamic noise. A muffler is a device installed in an airflow channel or in an intake or exhaust system to reduce noise.

[0003] As shown in the application document with the prior art publication number CN220020602U, it includes an air intake assembly and an air outlet assembly; the air intake assembly is arranged on the air outlet assembly; the utility model arranges the air intake assembly and the air outlet assembly, and the air enters the air intake barrel from the air intake pipe and connects with the air exhaust barrel to form a silencer cavity, and after filling the cavity, a vortex is formed, and since the air intake pipe and the air outlet pipe form a staggered structure, the air vibration is reduced, and then the air is discharged from the air outlet pipe to achieve the effect of reducing the sound; this technical solution has the advantages of clear structural design, convenient operation and low production cost.

[0004] However, the above technical solution can only perform one sound absorption and noise reduction operation on the sound, resulting in poor noise reduction effect of the technical solution, which in turn affects the use effect of the technical solution. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a multi-stage silencer. Through the arrangement of the first silencer mesh plate and the second silencer mesh plate, the flow velocity of the air can be dispersed to achieve the purpose of rapid silencing. The arrangement of multiple groups of silencer components can perform multi-level noise reduction on the sound, thereby ensuring the silencer effect of the utility model. Moreover, because the support tube, the two connecting pipes and the top cover are connected by flanges, the staff can disassemble the support tube, the two connecting pipes and the top cover, thereby achieving the purpose of convenient inspection and maintenance of the silencer components, improving the convenience of the staff in inspecting the equipment, so as to solve the problems arising from the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a multi-stage muffler, comprising a support tube, a top cover is provided on the top of the support tube, two connecting pipes are provided between the top cover and the support tube, and multiple groups of muffler components for reducing noise are provided inside each connecting pipe;

[0007] Each set of silencer components includes a support isolation ring, a silencer baffle is provided inside the top of the support isolation ring, a first silencer mesh is provided at the bottom of the silencer baffle, a silencer cotton ring is provided on the top of the first silencer mesh, a plurality of fixed protective frames are installed at the bottom of the silencer baffle, and the bottom of the fixed protective frame is fixed to the first silencer mesh;

[0008] A top ring is provided on the top of the sound-absorbing baffle, a support plate is provided on the top of the top ring, a plurality of through holes are opened inside the support plate, a second sound-absorbing mesh plate is provided at the bottom of the support plate, sound-absorbing cotton is provided on the top of the second sound-absorbing mesh plate, a plurality of top rods are provided outside the sound-absorbing cotton, and the top and bottom ends of the top rods are respectively fixed to the top of the second sound-absorbing mesh plate and the bottom of the support plate.

[0009] In a preferred embodiment, the multiple fixed protective frames and the multiple top rods are evenly spaced apart. The arrangement of the multiple fixed protective frames and the multiple top rods can perform multi-directional installation and fixation of the first silencer mesh panel and the multiple second silencer mesh panels, thereby ensuring the stability of the first silencer mesh panel and the second silencer mesh panel.

[0010] In a preferred embodiment, the front side of the bottom end of the support tube is connected to an inlet pipe, and the top of the top cover is fixedly connected to an outlet pipe. Through the setting of the inlet pipe, the sound can be transported through the support tube to the interior of multiple groups of silencer components in the connecting pipe, and then the noise-reduced sound can be discharged with the help of the outlet pipe.

[0011] In a preferred embodiment, the ends of the two connecting pipes that are close to each other and the ends of the two connecting pipes that are respectively close to the support tube and the top cover are connected by flanges. The support tube, the connecting pipe and the top cover are connected by flanges, which can facilitate the staff to disassemble and install the support tube, the connecting pipe and the top cover, thereby improving the convenience of the staff when repairing the equipment.

[0012] In a preferred embodiment, a sound insulation mesh ring is provided inside the support tube. Through the provision of the sound insulation mesh ring, the flow velocity of the air can be dispersed to achieve the purpose of rapid noise reduction.

[0013] In a preferred embodiment, a plurality of mounting plates are installed on the outside of the bottom end of the support tube, and the plurality of mounting plates are evenly spaced apart. Mounting holes are opened through the inside of the mounting plates. The arrangement of the mounting holes on the mounting plates facilitates the installation and fixing of the support tube in a suitable position, thereby ensuring the stability of the support tube.

[0014] Technical effects and advantages of the utility model:

[0015] By setting the first silencer mesh plate and the second silencer mesh plate, the air flow velocity can be dispersed to achieve the purpose of rapid silencer, and the setting of multiple groups of silencer components can perform multi-level noise reduction, thereby ensuring the silencer effect of the utility model, and because the support tube, two connecting pipes and the top cover are connected by flanges, the support tube, the two connecting pipes and the top cover can be disassembled by the staff, thereby achieving the purpose of convenient inspection and maintenance of the silencer components, and improving the convenience of the staff when repairing the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a side sectional view of the connecting pipe of the utility model;

[0018] Figure 3 This is an exploded view of the support isolation ring of the utility model;

[0019] Figure 4 This is a bottom view of the first sound-absorbing mesh plate of the utility model;

[0020] Figure 5 It is the front view of the support tube of the utility model.

[0021] The accompanying drawings are marked as follows: 1. support tube; 2. top cover; 3. connecting pipe; 4. support isolation ring; 5. sound-absorbing baffle; 6. first sound-absorbing mesh plate; 7. sound-absorbing cotton ring; 8. fixed protective frame; 9. top ring; 10. support plate; 11. through hole; 12. second sound-absorbing mesh plate; 13. sound-absorbing cotton; 14. top rod; 15. inlet pipe; 16. outlet pipe; 17. flange; 18. sound-absorbing mesh ring; 19. mounting plate; 20. mounting hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Refer to the instruction manual Figure 1-5 The utility model provides a multi-stage silencer, comprising a support tube 1, a top cover 2 is provided on the top of the support tube 1, two connecting pipes 3 are provided between the top cover 2 and the support tube 1, and each connecting pipe 3 is provided with multiple groups of silencer components for reducing noise;

[0024] like Figure 2-4As shown, each group of silencer components includes a supporting isolation ring 4, a silencer baffle 5 is provided inside the top of the supporting isolation ring 4, a first silencer mesh plate 6 is provided at the bottom of the silencer baffle 5, a silencer cotton ring 7 is provided on the top of the first silencer mesh plate 6, a plurality of fixed protective frames 8 are installed at the bottom of the silencer baffle 5, and the bottom end of the fixed protective frame 8 is fixed to the first silencer mesh plate 6; a top ring 9 is provided on the top of the silencer baffle 5, a supporting plate 10 is provided on the top of the top ring 9, a plurality of through holes 11 are opened inside the supporting plate 10, and a first soundproofing cotton ring 7 is provided at the bottom of the supporting plate 10 A second sound-absorbing mesh panel 12, a sound-absorbing cotton 13 is arranged on the top of the second sound-absorbing mesh panel 12, and a plurality of top rods 14 are arranged outside the sound-absorbing cotton 13, the top and bottom ends of the top rods 14 are respectively fixed to the top of the second sound-absorbing mesh panel 12 and the bottom of the support plate 10, and the plurality of fixed protective frames 8 and the plurality of top rods 14 are evenly spaced. The arrangement of the plurality of fixed protective frames 8 and the plurality of top rods 14 can perform multi-directional installation and fixation of the first sound-absorbing mesh panel 6 and the plurality of second sound-absorbing mesh panels 12, thereby ensuring the stability of the first sound-absorbing mesh panel 6 and the second sound-absorbing mesh panel 12.

[0025] Specifically, through the layered coordination of multiple groups of silencer components, the sound can be reduced at multiple levels to achieve the purpose of rapid silencer. Because the support tube 1, the two connecting tubes 3 and the top cover 2 are connected by the flange 17, the staff can disassemble the support tube 1, the two connecting tubes 3 and the top cover 2, so as to achieve the purpose of convenient inspection and maintenance of the silencer components.

[0026] like Figure 1 and 5 As shown, the front side of the bottom end of the support tube 1 is connected to an inlet pipe 15, and the top of the top cover 2 is fixedly connected to an outlet pipe 16. Through the setting of the inlet pipe 15, the sound can be transported through the support tube 1 to the interior of the multiple groups of silencer components in the connecting pipe 3, and then the noise-reduced sound can be discharged with the help of the outlet pipe 16.

[0027] like Figure 1 , 2 As shown in Figure 5, the ends of the two connecting tubes 3 that are close to each other and the ends of the two connecting tubes 3 that are close to the support tube 1 and the top cover 2 are connected via flanges 17. The support tube 1, the connecting tube 3 and the top cover 2 are connected via flanges 17, which can facilitate the staff to disassemble and install the support tube 1, the connecting tube 3 and the top cover 2, thereby improving the convenience of the staff when repairing the equipment.

[0028] like Figure 5 As shown, a sound insulation mesh ring 18 is provided inside the support tube 1. By providing the sound insulation mesh ring 18, the flow velocity of the air can be dispersed to achieve the purpose of rapid noise reduction.

[0029] like Figure 1 and 5As shown, a plurality of mounting plates 19 are installed on the outside of the bottom end of the support tube 1, and the plurality of mounting plates 19 are evenly spaced apart. A mounting hole 20 is opened through the inside of the mounting plate 19. Through the setting of the mounting hole 20 on the mounting plate 19, it is convenient to install and fix the support tube 1 in a suitable position, thereby ensuring the stability of the support tube 1.

[0030] The noise is initially dispersed and absorbed by the first silencer mesh plate 6 and the silencer cotton ring 7, and then the processed sound is transmitted to the inside of the top ring 9 through the silencer baffle plate 5 and contacts with the second silencer mesh plate 12 and the silencer cotton 13, so as to disperse and absorb the sound again and improve the noise reduction treatment of the sound. With the help of the layered coordination of multiple groups of silencer components, the sound can be reduced at multiple levels to achieve the purpose of rapid silencing. Because the support tube 1, the two connecting tubes 3 and the top cover 2 are connected by the flange 17, the staff can disassemble the support tube 1, the two connecting tubes 3 and the top cover 2, so as to achieve the purpose of convenient inspection and maintenance of the silencer components and improve the convenience of the staff when inspecting the equipment.

[0031] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A multi-stage silencer, comprising a support tube (1), characterized in that: The top of the support tube (1) is provided with a top cover (2), two connecting pipes (3) are provided between the top cover (2) and the support tube (1), and each connecting pipe (3) is provided with a plurality of groups of silencer components for reducing noise; Each group of silencer components comprises a support isolation ring (4), a silencer baffle (5) is provided inside the top end of the support isolation ring (4), a first silencer mesh plate (6) is provided at the bottom end of the silencer baffle (5), a silencer cotton ring (7) is provided at the top of the first silencer mesh plate (6), a plurality of fixed protection frames (8) are installed at the bottom of the silencer baffle (5), and the bottom end of the fixed protection frame (8) is fixed to the first silencer mesh plate (6); The top of the sound-absorbing baffle (5) is provided with a top ring (9), the top of the top ring (9) is provided with a support plate (10), a plurality of through holes (11) are opened inside the support plate (10), a second sound-absorbing mesh plate (12) is provided at the bottom of the support plate (10), a sound-absorbing cotton (13) is provided at the top of the second sound-absorbing mesh plate (12), a plurality of top rods (14) are provided outside the sound-absorbing cotton (13), and the top and bottom ends of the top rods (14) are respectively fixed to the top of the second sound-absorbing mesh plate (12) and the bottom of the support plate (10).

2. A multi-stage muffler according to claim 1, characterized in that: The front side of the bottom end of the support tube (1) is connected to an inlet pipe (15), and the top of the top cover (2) is fixedly connected to an outlet pipe (16).

3. A multi-stage muffler according to claim 1, characterized in that: The ends of the two connecting pipes (3) that are close to each other and the ends of the two connecting pipes (3) that are close to the support tube (1) and the top cover (2) are connected via flanges (17).

4. A multi-stage muffler according to claim 1, characterized in that: A sound insulation mesh ring (18) is provided inside the support tube (1).

5. The multi-stage muffler according to claim 1, characterized in that: A plurality of mounting plates (19) are installed on the outside of the bottom end of the support tube (1), the plurality of mounting plates (19) are evenly spaced and distributed, and mounting holes (20) are provided through the inside of the mounting plates (19).

6. A multi-stage muffler according to claim 1, characterized in that: The plurality of fixed protection frames (8) and the plurality of top rods (14) are evenly spaced and distributed.

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