Multi-layer filtering structure of silencing box

Abstract

The utility model provides a silencing box multilayer filter structure, relates to silencing box field, including: multilayer filter frame body and silencing box body, multilayer filter frame body inner side is provided with dust cleaning chamber and filter chamber, the filter chamber is distributed with first filter plate, second filter plate and third filter plate in proper order, and the first filter plate, the second filter plate and the third filter plate are arranged in the silencing box body. Partition plates are fixed to the left ends of the first filter plate, the second filter plate and the third filter plate, limiting plates are fixed to the left side ends of the first filter plate, the second filter plate and the third filter plate, a driving block is connected to the left side of the dust cleaning cavity through a positioning groove, and a cleaning brush is connected to the right side of the driving block through a rotating column; the upper end of the driving block is connected with an electric push rod, and the surface of the electric push rod is connected with an electric sliding rail through a connecting sliding plate. The noise reduction box solves the problem that in the prior art, dust and impurities filtered by a sound insulation filter plate and a sound insulation dust blocking plate in daily life are prone to blocking meshes, air noise circulation is poor, and the noise reduction effect is affected.

Description

Technical Field

[0001] This utility model relates to the field of silencer box technology, specifically to a multi-layer filter structure for a silencer box. Background Technology

[0002] A silencer box is a device specifically designed to reduce noise transmission and lower noise levels. It reduces noise levels through methods such as sound absorption, sound insulation, and reflection control, protecting workers' hearing, improving work efficiency, and reducing the impact of noise on the environment and residents. Typically, filter materials are used inside the silencer box to further reduce noise. A search revealed existing technology (publication number: CN202322104124.1) for a low-frequency silencer box for a fresh air system. The document describes that "a vibration-damping base is fixedly installed on the bottom surface inside the silencer box, and a fan is installed above the vibration-damping base. An air inlet is opened on the inner wall of the silencer box near the fan's air intake, and a sound-insulating filter plate, bolted to the air inlet, is installed at the air inlet. The sound-insulating filter plate has evenly arranged, horn-shaped first openings, with the flared side of the first opening facing outwards; the silencer box..." A removable activated carbon plate is installed on one side of the interior near the exhaust port of the fan, and a disassembly and assembly assembly for the activated carbon plate is provided on the silencer housing. An air outlet is provided on the open side of the silencer housing parallel to the door, and a sound-insulating and dust-blocking plate installed with bolts is provided at the air outlet. The sound-insulating and dust-blocking plate has a second opening that is evenly arranged and shaped like a horn, with the flared side of the second opening facing the inside of the silencer housing. The beneficial effect is that this application achieves the functions of sound insulation and filtration by using a bolt-installed sound-insulating filter plate and a sound-insulating and dust-blocking plate, and the activated carbon plate adsorbs pollutants. However, in the prior art, the sound-insulating filter plate and the sound-insulating and dust-blocking plate installed at the air inlet and outlet of the silencer housing are prone to clogging of the mesh by dust and impurities filtered on a daily basis, resulting in poor airflow and affecting the sound insulation effect. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, a multi-layer filtration structure for a silencer box is provided to solve the problem that in existing technologies, the dust and impurities filtered daily by the sound-insulating filter plates and sound-insulating dust-blocking plates installed at the air inlet and outlet of the silencer box easily clog the mesh, resulting in poor airflow and affecting the silencer effect.

[0004] To achieve the above objectives, a multi-layer filter structure for a silencer box is provided, comprising: a multi-layer filter frame, wherein a silencer box is screwed to the rear side of the multi-layer filter frame.

[0005] The multi-layer filter frame is provided with a dust cleaning chamber and a filter chamber on its inner side. The filter chamber is provided with a first filter plate, a second filter plate and a third filter plate arranged in sequence. A partition plate is fixed to the left end of the first filter plate, the second filter plate and the third filter plate. A limit plate is fixed to the left end of the first filter plate, the second filter plate and the third filter plate. A drive block is connected to the left side of the dust cleaning chamber through a positioning groove. A cleaning brush is connected to the right side of the drive block through a rotating column. An electric push rod is connected to the upper end of the drive block. An electric slide rail is connected to the surface of the electric push rod through a connecting slide plate.

[0006] Furthermore, an electric slide rail is installed on the outer left side of the multi-layer filter frame, and a controller is fixed at the lower end of the electric slide rail. Three sets of positioning grooves are provided on the left side wall of the dust cleaning chamber.

[0007] Furthermore, an electric push rod and a connecting slide are attached to the left edge of the upper surface of the multi-layer filter frame, and an air inlet is provided on the front end face of the multi-layer filter frame.

[0008] Furthermore, an air outlet is provided on the rear end face of the multi-layer filter frame; and the air outlet is connected to the inner side of the silencer box, and a partition plate is provided between the dust cleaning chamber and the filter chamber.

[0009] Furthermore, a dust discharge slot is provided on the lower surface of the dust removal chamber, and a dust collection box is inserted into the lower end of the dust discharge slot. A rectangular frame is fixed on the lower edge of the front side of the first filter plate, the second filter plate, and the third filter plate.

[0010] Furthermore, a small motor is fixed inside the drive block, and a rotating column is connected to the right side shaft of the small motor; and a cleaning brush is screwed onto the external threaded surface on the right side of the rotating column.

[0011] Furthermore, a sealing cover is screwed to the right end of the multi-layer filter frame, and a push plate is inserted into the right end of the sealing cover via a pin. A limit plate is connected to the left end of the push plate.

[0012] The beneficial effects of this utility model are as follows: the multi-layer filter structure of the silencer box utilizes a cleaning brush, an electric push rod, a connecting slide plate, a drive block, a small motor, and a rotating column to form an automatic dust removal structure. By periodically pushing the filter plate into the dust removal chamber, the rotating cleaning brush cleans the dust and impurities on the filter plate mesh, making it convenient, labor-saving, and easy to clean the multi-layer filter structure of the silencer box. This prevents filtered dust and impurities from obstructing air noise from entering the silencer box, ensuring normal air noise circulation, enhancing the filtration and noise reduction performance of the silencer box, ensuring that the silencer box efficiently absorbs vibration sound energy and air noise, and improving the practicality of the multi-layer filter structure of the silencer box. Attached Figure Description

[0013] Figure 1This is a front view schematic diagram of the multi-layer filter structure of the silencer box according to an embodiment of the present utility model.

[0014] Figure 2 This is a front view cross-sectional schematic diagram of the multi-layer filter structure of the silencer box according to an embodiment of the present utility model.

[0015] Figure 3 This is a top view partial cross-sectional diagram of the connection structure of the silencer box and the multi-layer filter structure according to an embodiment of the present invention.

[0016] Figure 4 This is a front view cross-sectional structural diagram of the cleaning brush according to an embodiment of the present utility model.

[0017] Figure 5 This is a three-dimensional structural diagram of the first filter plate in an embodiment of the present invention.

[0018] In the diagram: 1. Multi-layer filter frame; 11. Controller; 12. Electric slide rail; 13. Air inlet; 14. Dust cleaning chamber; 15. Dust discharge slot; 16. Positioning slot; 17. Air outlet; 18. Filter chamber; 2. First filter plate; 21. Push plate; 22. Second filter plate; 23. Limiting plate; 24. Third filter plate; 25. Divider plate; 26. Rectangular frame; 3. Dust collection box; 4. Cleaning brush; 41. Electric push rod; 42. Connecting slide plate; 43. Drive block; 44. Small motor; 45. Rotating column; 5. Sealing cover plate; 51. Pin; 6. Silencing housing. Detailed Implementation

[0019] Reference Figures 1 to 5 As shown, this utility model provides a multi-layer filter structure for a silencer box, including: a multi-layer filter frame 1 and a silencer box 6, with the silencer box 6 screwed to the rear side of the multi-layer filter frame 1.

[0020] The inner side of the multi-layer filter frame 1 is provided with a dust cleaning chamber 14 and a filter chamber 18. The filter chamber 18 is arranged with a first filter plate 2, a second filter plate 22 and a third filter plate 24 in sequence. A partition plate 25 is fixed to the left end of the first filter plate 2, the second filter plate 22 and the third filter plate 24. A limit plate 23 is fixed to the left end of the first filter plate 2, the second filter plate 22 and the third filter plate 24. A drive block 43 is connected to the left side of the dust cleaning chamber 14 through a positioning groove 16. A cleaning brush 4 is connected to the right side of the drive block 43 through a rotating column 45. An electric push rod 41 is connected to the upper end of the drive block 43. An electric slide rail 12 is connected to the surface of the electric push rod 41 through a connecting slide plate 42.

[0021] First, install and fix the multi-layer filter frame 1 at the air intake of the silencer box 6. When the silencer box 6 draws in air noise, it first passes through the first filter plate 2, the second filter plate 22, and the third filter plate 24 inside the multi-layer filter frame 1 before entering the silencer box 6 for noise reduction. Periodically, manually remove the pin 51 to push the filter plate inside the multi-layer filter frame 1 to the left into the dust cleaning chamber 14. At this time, the small motor 44 inside the drive block 43 drives the cleaning brush 4 to rotate and clean along the front mesh surface of the filter plate. At the same time, the electric push rod 41 pushes the cleaning brush 4 to descend at a uniform speed, sweeping the dust and impurities on the surface of the filter plate into the dust collection box 3. Finally, pull back the filter plate and insert it into the positioning position.

[0022] In this embodiment, an electric slide rail 12 is installed on the outer left side of the multi-layer filter frame 1, and a controller 11 is fixed at the lower end of the electric slide rail 12. Three sets of positioning grooves 16 are opened on the left side wall of the dust cleaning chamber 14.

[0023] In a preferred embodiment, the controller 11 controls the operation of the electrical equipment during the dust removal process. The electric slide rail 12 facilitates the control of the movement position of the cleaning brush 4, so that the cleaning brush 4 moves to the front side of the first filter plate 2, the second filter plate 22 and the third filter plate 24 respectively.

[0024] In this embodiment, an electric push rod 41 and a connecting slide plate 42 are attached to the left edge of the upper surface of the multi-layer filter frame 1, and an air inlet 13 is provided on the front end face of the multi-layer filter frame 1. An air outlet 17 is provided on the rear end face of the multi-layer filter frame 1; and the air outlet 17 is connected to the inner side of the silencer box 6. A partition plate is provided between the dust cleaning chamber 14 and the filter chamber 18. A dust discharge slot 15 is provided on the lower surface of the dust cleaning chamber 14, and a dust collection box 3 is inserted into the lower end of the dust discharge slot 15. A partition plate 25 is fixed to the left end of the first filter plate 2, the second filter plate 22, and the third filter plate 24, and a rectangular frame 26 is fixed to the lower front edge.

[0025] In a preferred embodiment, the connecting slide plate 42 drives the electric push rod 41 to move to the appropriate positioning slot 16, so that the cleaning brush 4 moves accordingly to the front side of the filter plate inside the dust cleaning chamber 14. The air inlet 13 and the air outlet 17 are located at the front and rear sides of the filter chamber 18, so that the air noise drawn in by the silencer box 6 is first filtered by the multi-layer filter structure in the multi-layer filter frame 1 before further noise reduction. The rectangular frame 26 is convenient for storing dust and impurities that fall from the surface of the filter plate. When the filter plate is pushed into the dust cleaning chamber 14, the dust and impurities inside the rectangular frame 26 fall to the dust discharge slot 15, and the dust and impurities swept down are discharged into the dust collection box 3 through the dust discharge slot 15.

[0026] In this embodiment, a small motor 44 is fixed inside the drive block 43, and a rotating column 45 is connected to the right side shaft of the small motor 44; and a cleaning brush 4 is screwed to the right external thread surface of the rotating column 45.

[0027] In a preferred embodiment, the drive block 43 pushes the cleaning brush 4 up and down to clean via the electric push rod 41. The small motor 44 drives the cleaning brush 4 to rotate via the rotating column 45, so that the bristles on the surface of the cleaning brush 4 clean and remove dust and impurities from the filter plate mesh, making it convenient and labor-saving to clean the multi-layer filter structure inside the multi-layer filter frame 1, and preventing the filtered dust and impurities from obstructing air noise from entering the soundproof box 6.

[0028] In this embodiment, a sealing cover plate 5 is screwed to the right end of the multi-layer filter frame 1, and a push plate 21 is inserted into the right end of the sealing cover plate 5 through a pin 51. A limit plate 23 is connected to the left end of the push plate 21.

[0029] In a preferred embodiment, the sealing cover 5 is located on the right side of the dust cleaning chamber 14. Removing the sealing cover 5 allows the multi-layer filter structure inside the multi-layer filter frame 1 to be taken out, facilitating its maintenance and cleaning. The push plate 21 facilitates the movement of the filter plate inside the dust cleaning chamber 14 into the dust cleaning chamber 14, cleaning the dust and impurities on the filter plate surface and allowing normal airflow across the filter plate surface.

[0030] This utility model's multi-layer filtration structure for a silencer box effectively solves the problem in existing silencer boxes where daily filtration of dust and impurities at the air inlet and outlet easily clogs the mesh, leading to poor airflow and affecting the silencing effect. It facilitates convenient and labor-saving cleaning of the multi-layer filtration structure, preventing filtered dust and impurities from obstructing airflow and noise from entering the silencer box, ensuring normal airflow, enhancing the filtration and noise reduction performance of the silencer box, ensuring efficient absorption of vibration sound energy and air noise, and improving the practicality of the multi-layer filtration structure. It is suitable for multi-layer filtration structures in silencer boxes.

Claims

1. A multi-layer filter structure for a silencer box, comprising: A multi-layer filter frame (1), wherein a sound-absorbing housing (6) is screwed to the rear side of the multi-layer filter frame (1), characterized in that: The multi-layer filter frame (1) is provided with a dust cleaning chamber (14) and a filter chamber (18) inside. The filter chamber (18) is provided with a first filter plate (2), a second filter plate (22) and a third filter plate (24) arranged in sequence. The left end of the first filter plate (2), the second filter plate (22) and the third filter plate (24) is fixed with a partition plate (25). The left end of the first filter plate (2), the second filter plate (22) and the third filter plate (24) is fixed with a limit plate (23). The left side of the dust cleaning chamber (14) is connected to a drive block (43) through a positioning groove (16). The right side of the drive block (43) is connected to a cleaning brush (4) through a rotating column (45). The upper end of the drive block (43) is connected to an electric push rod (41). The surface of the electric push rod (41) is connected to an electric slide rail (12) through a connecting slide plate (42).

2. The multi-layer filter structure of a silencer box according to claim 1, characterized in that, An electric slide rail (12) is installed on the outer left side of the multi-layer filter frame (1), and a controller (11) is fixed at the lower end of the electric slide rail (12). Three sets of positioning grooves (16) are opened on the left side wall of the dust cleaning chamber (14).

3. The multi-layer filter structure of a silencer box according to claim 1, characterized in that, An electric push rod (41) and a connecting slide plate (42) are attached to the left edge of the upper surface of the multi-layer filter frame (1), and an air inlet (13) is provided on the front end face of the multi-layer filter frame (1).

4. The multi-layer filter structure of a silencer box according to claim 1, characterized in that, The rear end face of the multi-layer filter frame (1) is provided with an air outlet (17); and the air outlet (17) is connected to the inner side of the soundproof box (6). A partition plate is provided between the dust cleaning chamber (14) and the filter chamber (18).

5. The multi-layer filter structure of a silencer box according to claim 1, characterized in that, The dust removal chamber (14) has a dust discharge slot (15) on its lower surface. A dust collection box (3) is inserted into the lower end of the dust discharge slot (15). A partition plate (25) is fixed to the left end of the first filter plate (2), the second filter plate (22) and the third filter plate (24), and a rectangular frame (26) is fixed to the lower edge of the front side of the partition plate (25).

6. The multi-layer filter structure of a silencer box according to claim 1, characterized in that, The drive block (43) has a small motor (44) fixed inside, and a rotating column (45) is connected to the right side of the small motor (44); and a cleaning brush (4) is screwed to the external threaded surface on the right side of the rotating column (45).

7. The multi-layer filter structure of a silencer box according to claim 1, characterized in that, The right side of the multi-layer filter frame (1) is screwed with a sealing cover plate (5), and the right side of the sealing cover plate (5) is connected to a push plate (21) by a pin (51). The left side of the push plate (21) is connected to a limit plate (23).

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