A centralized sound muffling device

Abstract

The utility model discloses a device centralized silencing device, including cover, structure body, gas path connecting block, straight type thread air pipe joint, silencer, soundproofing cotton, L type soundproofing shunt plate and Z type flow reduction protection board, the cover is fixed on the structure body, and the straight type thread air pipe joint is installed on the gas path connecting block, is provided with the air hole on the gas path connecting block, and the air hole on the gas path connecting block is communicated straight type thread air pipe joint, and the silencer is installed in the structure body inside, and L type soundproofing shunt plate and Z type flow reduction protection board are installed in the structure body inside, and the structure body is provided with the exhaust hole, and the soundproofing cotton is pasted in the structure body inside close exhaust hole. The utility model discloses the airflow through L type soundproofing shunt plate and reduces exhaust pressure, and then through Z type flow reduction protection board changes the flow direction, angle to control each branch's flow proportion, thereby significantly reduces the gas flow, and after eliminating the noise through the soundproofing cotton, slowly discharges from the exhaust hole, thereby reaches the purpose of silencing.

Description

Technical Field

[0001] This utility model relates to a pneumatic exhaust device. Background Technology

[0002] The noise level of the factory equipment during operation exceeds the standard. Frontline production workers are exposed to excessive noise for a long time, which leads to health problems such as hearing loss, sleep disorders, and increased psychological stress. It also increases the risk of occupational diseases such as noise-induced hearing loss. Many frontline production workers have to wear earplugs. Workers who wear earplugs for long periods of time report that their ears hurt. The exhaust silencer of the existing equipment still exceeds 120 dB, which exceeds the national noise standard. Utility Model Content

[0003] To overcome the above shortcomings, this utility model provides a centralized equipment silencing device to reduce exhaust noise generated during production.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: A centralized silencing device includes a cover plate, a structural body, an air passage connecting block, a straight threaded air pipe connector, a silencer, sound insulation cotton, an L-shaped sound insulation diverter plate, and a Z-shaped flow reduction and protection plate; the cover plate is fixed on the structural body, the straight threaded air pipe connector is installed on the air passage connecting block, the air passage connecting block is fixed on the cover plate, the air passage connecting block is provided with a vent hole, the vent hole on the air passage connecting block is connected to the straight threaded air pipe connector, the silencer is installed inside the structural body and corresponds to the vent hole on the air passage connecting block, the L-shaped sound insulation diverter plate and the Z-shaped flow reduction and protection plate are installed inside the structural body, the structural body is provided with an exhaust hole, and the sound insulation cotton is pasted inside the structural body and tightly attached to the exhaust hole.

[0005] The cover plate is fixed to the structural body through cover plate mounting holes.

[0006] The L-shaped sound insulation and diversion plate and the Z-shaped flow reduction and protection plate are installed inside the structure body through screw through holes.

[0007] The airflow of this utility model reduces the exhaust pressure through the L-shaped sound insulation diversion plate, and then changes the airflow direction and angle through the Z-shaped flow reduction and protection plate to control the flow ratio of each branch, thereby significantly reducing the gas flow. After the sound insulation cotton eliminates the noise, it is slowly discharged from the exhaust hole, thereby achieving the purpose of noise reduction. Moreover, this utility model has a simple appearance, is easy to install, and the size can be customized according to the site of use. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the three-dimensional assembly structure of this utility model;

[0009] Figure 2 This is a schematic diagram of the external structural design of this utility model;

[0010] Figure 3 This is a schematic diagram of the cross-sectional structure of this utility model. Detailed Implementation

[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0012] Please see the appendix Figure 1 - Appendix Figure 3 An embodiment of this utility model provides a centralized silencing device comprising: a cover plate 1, a structural body 8, an air passage connecting block 4, a straight threaded air pipe connector 2, a silencer 3, sound insulation cotton 7, an L-shaped sound insulation diverter plate 5, and a Z-shaped flow reduction and protection plate 6; the cover plate 1 is fixed on the structural body 8, the straight threaded air pipe connector 2 is installed on the air passage connecting block 4, the air passage connecting block 4 is fixed on the cover plate 1, the air passage connecting block 4 is provided with a vent hole, the vent hole on the air passage connecting block 4 is connected to the straight threaded air pipe connector 2, the silencer 3 is installed inside the structural body 8 and corresponds to the vent hole on the air passage connecting block 4, the L-shaped sound insulation diverter plate 5 and the Z-shaped flow reduction and protection plate 6 are installed inside the structural body 8, the structural body 8 is provided with an exhaust hole 10, and the sound insulation cotton 7 is pasted inside the structural body 8 tightly against the exhaust hole 10. The cover plate 1 is fixed to the structural body 8 by screws through the cover plate mounting hole 12; the L-shaped sound insulation diversion plate 5 and the Z-shaped flow reduction and protection plate 6 are installed inside the structural body 8 by screws through the screw through hole 9.

[0013] The airflow reduces exhaust pressure through the L-shaped sound-insulating diversion plate 5, and then changes the airflow direction and angle through the Z-shaped flow-reducing protective plate 6 to control the flow ratio of each branch, thereby significantly reducing gas flow. After noise is eliminated by the sound-insulating cotton 7, the gas is slowly discharged from the exhaust port 10, thus achieving the purpose of noise reduction. The silencer 3 is installed inside the box through the reserved hole on the cover plate 1. After the cover plate 1 is installed, it is locked onto the main body 8. The external exhaust pipe is connected to the straight threaded air pipe connector 2. The appearance is simple, the installation is convenient, and the size can be customized according to the usage site.

[0014] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A centralized equipment silencing device, characterized in that, The structure includes a cover plate (1), a structural body (8), an air passage connection block (4), a straight threaded air pipe connector (2), a silencer (3), sound insulation cotton (7), an L-shaped sound insulation diversion plate (5), and a Z-shaped flow reduction protection plate (6). The cover plate 1 is fixed on the structural body (8), the straight threaded air pipe connector (2) is installed on the air passage connection block (4), the air passage connection block (4) is fixed on the cover plate (1), the air passage connection block (4) is provided with a vent hole, the vent hole on the air passage connection block (4) is connected to the straight threaded air pipe connector (2), the silencer (3) is installed inside the structural body (8) and corresponds to the vent hole on the air passage connection block (4), the L-shaped sound insulation diversion plate (5) and the Z-shaped flow reduction protection plate (6) are installed inside the structural body (8), the structural body (8) is provided with an exhaust hole (10), and the sound insulation cotton (7) is pasted inside the structural body (8) and closely attached to the exhaust hole (10).

2. The centralized equipment silencing device according to claim 1, characterized in that, The cover plate (1) is fixed to the structural body (8) through the cover plate mounting hole (12).

3. The centralized equipment silencing device according to claim 1, characterized in that, The L-shaped sound insulation diversion plate (5) and the Z-shaped flow reduction protection plate (6) are installed inside the structural body (8) through screw through holes (9).

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