Noise elimination static pressure box of air supply system

Abstract

The utility model relates to the field of silencing plenum chambers, and discloses a silencing plenum chamber of an air supply system, which comprises a box body, air supply outlets are formed in the middle parts of the front and rear ends of the box body, noise reduction plates are mounted in the box body close to the four side edges, a plurality of silencing holes are formed in one side of each noise reduction plate, and sound insulation cotton is mounted in each noise reduction plate. Limiting frames are movably installed at the front and rear end edges of the inner wall of the box body, fixing clamping grooves are formed in the edges of one ends of the limiting frames, fixing frames are symmetrically and fixedly connected to the two side edges of the outer surface of the box body, inner grooves are formed in the positions, corresponding to the fixing frames, of the inner wall of the box body, and limiting plates are hinged to the bottoms of the front and rear ends of the inner wall of each inner groove through damping bearings. The multiple noise reduction plates are mounted in the box body through the limiting frames, so that the effect of conveniently disassembling and assembling the noise reduction plates is achieved, the convenience during replacement of the noise reduction plates is improved, the problem that dust in air enters the noise reduction plates to affect the noise reduction effect is solved, and the overall difficulty during operation by people is reduced.

Description

Technical Field

[0001] The present application relates to the field of silencer static pressure boxes, and in particular to a silencer static pressure box of an air supply system. Background Art

[0002] Air supply system refers to the system used to provide fresh air to indoor space or regulate indoor air circulation. This system is usually composed of fans, air ducts, air conditioning boxes, air outlets, etc. Its main function is to deliver processed air to the room to maintain indoor air quality and temperature. The anechoic static pressure box is a device used to reduce the noise of fans, air supply systems or other equipment. It can effectively reduce the noise generated by mechanical equipment and provide a quiet working environment. It blocks, absorbs and suppresses the spread of noise when the equipment is running.

[0003] When the existing silencer plenum box is in use, it will process the noise carried in the air transported by the air supply system. However, the air contains a certain amount of dust and impurities. After the silencer plenum box has been used for a certain period of time, a certain amount of dust and impurities will adhere to the noise reduction plate inside the silencer plenum box, which will in turn have a certain impact on the overall use efficiency of the silencer plenum box. The noise reduction plate is generally fixed inside the silencer plenum box, and the silencer plenum box is installed and fixed in the air supply system, which makes it time-consuming and laborious for people to disassemble and replace the noise reduction plate, increasing the difficulty of people's operation.

[0004] With respect to the above-mentioned related technologies, the inventor believes that after being used for a certain period of time, there is a defect that dust and debris are attached to the noise reduction plate in the silencer static pressure box. Therefore, a silencer static pressure box for an air supply system is proposed to solve the above problem. Utility Model Content

[0005] In order to solve the problem of dust and debris adhering to the noise reduction plate after being used for a certain period of time in the silencer static pressure box, the present application provides a silencer static pressure box for an air supply system.

[0006] The present application provides a silencing static pressure box for an air supply system adopts the following technical solution:

[0007] A sound-absorbing static pressure box of an air supply system comprises a box body, air supply outlets are arranged in the middle of the front and rear ends of the box body, noise reduction plates are installed near the four sides inside the box body, a plurality of sound-absorbing holes are opened on one side of the noise reduction plate, sound insulation cotton is installed inside the noise reduction plate, limiting frames are movably installed at the edges of the front and rear ends of the inner wall of the box body, a fixed slot is opened on the edge of one end of the limiting frame, and fixed frames are symmetrically fixedly connected to the edges of the two sides of the outer surface of the box body, inner grooves are opened at the corresponding positions of the inner wall of the box body and the fixed frame, the bottoms of the front and rear ends of the inner wall of the inner groove are hinged to the limiting plates by damping bearings, a knob is installed at the hinge point of one end of the limiting plate extending to the outside of the fixed frame, and a fixing component is also provided on the outer surface of the limiting frame for fixing multiple noise reduction plates inside the box body.

[0008] Preferably, the fixing assembly includes threaded holes, which are symmetrically opened at the front and rear ends of the noise reduction plate, and one end of the limit frame is symmetrically opened with through holes at four sides, and one end of the limit frame extends to the inside of the threaded hole and is threadedly connected with a fastening bolt.

[0009] Preferably, a limiting groove is opened in the middle of one side of the limiting plate, the overall thickness of the limiting frame is smaller than the distance between the front and rear ends of the inner wall of the limiting groove, the edge of the outer surface of the limiting frame is located inside the limiting groove, and the limiting frame and the limiting groove are coupled to each other.

[0010] Preferably, the front and rear end edges of the noise reduction plate are both located inside the fixed slot, and the plurality of noise reduction plates are engaged with the fixed slot.

[0011] Preferably, the outer diameter of the fastening bolt is smaller than the inner diameter of the through hole, one side of the outer surface of the fastening bolt is located inside the limiting frame, and the fastening bolt and the through hole are embedded in each other.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] By placing multiple noise reduction plates on the four sides of the inner wall of the box, turning the fastening bolts to pass through the limit frame and thread them into the threaded holes, the fastening bolts can fix the single noise reduction plate. After the multiple noise reduction plates are installed, turning the multiple fastening bolts again to push the limit frame to fit tightly against the outer surface of the noise reduction plate. Turning the knob can make the limit plate movably clamped on the outer surface of the limit frame along the inner groove to keep the limit frame stably placed inside the box. Compared with the prior art, this solution has the effect of facilitating the disassembly and assembly of the noise reduction plate, improves the convenience of replacing the noise reduction plate, solves the problem of dust in the air entering the noise reduction plate and affecting the noise reduction effect, and reduces the overall difficulty of people's operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the application;

[0015] Figure 2 It is a schematic diagram of the structure of the limit frame in the application embodiment;

[0016] Figure 3 is a schematic cross-sectional structure diagram of a fixing frame in an embodiment of the application;

[0017] Figure 4 It is a schematic diagram of the structure of the sound insulation cotton in the application embodiment;

[0018] Explanation of the reference numerals: 1. Box body; 2. Air outlet; 3. Noise reduction plate; 4. Silence hole; 5. Sound insulation cotton; 6. Limiting frame; 7. Fixed slot; 8. Fixed frame; 9. Inner slot; 10. Limiting plate; 11. Limiting slot; 12. Knob; 13. Threaded hole; 14. Fastening bolt. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-4 This application is described in further detail.

[0020] The present application embodiment discloses a silencing static pressure box of an air supply system. Figure 1-4 , a sound-absorbing static pressure box of an air supply system comprises a box body 1, air supply ports 2 are arranged in the middle of the front and rear ends of the box body 1, noise reduction plates 3 are installed near the four sides inside the box body 1, a plurality of silencer holes 4 are opened on one side of the noise reduction plate 3, and sound insulation cotton 5 is installed inside the noise reduction plate 3. Limiting frames 6 are movably installed at the edges of the front and rear ends of the inner wall of the box body 1, and a fixed card slot 7 is opened at one end of the edge of the limiting frame 6. The front and rear ends of the noise reduction plate 3 are located inside the fixed card slot 7, and multiple noise reduction plates 3 are engaged with the fixed card slot 7. Fixed frames 8 are symmetrically fixed to the edges of both sides of the outer surface of the box body 1, and inner grooves 9 are opened at the corresponding positions of the inner wall of the box body 1 and the fixed frame 8. The bottom of the front and rear ends of the inner wall of the inner groove 9 is hinged to a limiting plate 10 through a damping bearing. A knob 12 is installed at the hinge point of one end of the limiting plate 10 extending to the outside of the fixed frame 8. A fixing component is also provided on the outer surface of the limiting frame 6 for fixing multiple noise reduction plates 3 inside the box body 1.

[0021] By adjusting the distance between the two limit frames 6 to make it larger than the overall length of the noise reduction plate 3, a single noise reduction plate 3 is placed on the side of the inner wall of the box body 1 and between the two limit frames 6, so that the limit frame 6 is clamped and fixed to the noise reduction plate 3, and the limit frame 6 is moved close to the position of the limit plate 10, and the knob 12 is turned to drive the limit plate 10 to be clamped on the outer surface of the limit frame 6, so that the limit frame 6 is kept stably placed inside the box body 1, and the silencer holes 4 on the outer surface of the noise reduction plate 3 cooperate with the internal sound insulation cotton 5 to perform sound silencing and noise reduction treatment inside the box body 1.

[0022] Reference Figure 2 and Figure 4 The fixing component includes a threaded hole 13, which is symmetrically opened at the front and rear ends of the noise reduction plate 3. One end of the limiting frame 6 is symmetrically opened with through holes at the four sides. One end of the limiting frame 6 extends to the inside of the threaded hole 13 and is threadedly connected with a fastening bolt 14. The outer diameter of the fastening bolt 14 is smaller than the inner diameter of the through hole. One side of the outer surface of the fastening bolt 14 is located inside the limiting frame 6, and the fastening bolt 14 and the through hole are embedded with each other.

[0023] By rotating the fastening bolts 14 through the limit frame 6 and threading it in the threaded hole 13, the fastening bolts 14 fix the single noise reduction plate 3 inside the box body 1, and the other multiple noise reduction plates 3 are simultaneously installed inside the box body 1, the limit frame 6 is pushed to make the fixing slot 7 clamped on the noise reduction plate 3, and the multiple fastening bolts 14 are rotated again to fit tightly against the outer surface of the limit frame 6, so that the limit frame 6 and the noise reduction plate 3 are in a fixed state as a whole, which reflects the limiting and fixing effect of the fastening bolts 14 on the limit frame 6 and the noise reduction plate 3.

[0024] Reference Figure 3 A limiting groove 11 is provided in the middle of one side of the limiting plate 10, the overall thickness of the limiting frame 6 is less than the distance between the front and rear ends of the inner wall of the limiting groove 11, the edge of the outer surface of the limiting frame 6 is located inside the limiting groove 11, the limiting frame 6 and the limiting groove 11 are coupled to each other, and the limiting plate 10 is moved to drive the limiting groove 11 to be clamped on the outer surface of the limiting frame 6, thereby keeping the limiting plate 10 and the limiting frame 6 in a stable clamping state, which reflects the placement effect of the limiting plate 10 on the outer surface of the limiting frame 6.

[0025] The implementation principle of the silencer static pressure box of the air supply system of the embodiment of the present application is as follows: by adjusting the spacing between the two limit frames 6 so that it is larger than the overall length of the noise reduction plate 3, a single noise reduction plate 3 is placed on the side of the inner wall of the box body 1 and is located between the two limit frames 6, the fastening bolts 14 are rotated to pass through the limit frames 6 and are threadedly connected in the threaded holes 13, so that the fastening bolts 14 fix the single noise reduction plate 3 inside the box body 1, and other multiple noise reduction plates 3 are installed inside the box body 1 simultaneously, the limit frames 6 are pushed to make the fixing slots 7 clamped on the noise reduction plate 3, and the multiple fastening bolts 14 are rotated again to be close to the outer surface of the limit frames 6, so that the limit frames 6 and the noise reduction plate 3 are in a fixed state as a whole, and the limit frames are fixed. 6 moves close to the position of the limit plate 10, and the knob 12 is turned to drive the limit plate 10 to move along the inner groove 9, so that the limit groove 11 is clamped on the outer surface of the limit frame 6, so that multiple limit plates 10 limit and fix the limit frame 6 and the noise reduction plate 3 inside the box body 1 as a whole, keep the limit frame 6 stably placed inside the box body 1, and make the silencer holes 4 on the outer surface of the noise reduction plate 3 cooperate with the internal sound insulation cotton 5 to reduce the sound inside the box body 1; compared with the prior art, this solution has the effect of facilitating the disassembly and assembly of the noise reduction plate 3, improves the convenience of replacing the noise reduction plate 3, solves the problem of dust in the air entering the noise reduction plate 3 and affecting the noise reduction effect, and reduces the overall difficulty of people's operation.

[0026] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0027] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0028] 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.

[0029] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A silencing static pressure box of an air supply system, comprising a box body (1), wherein air supply ports (2) are arranged in the middle of both front and rear ends of the box body (1), and the characteristics are: Noise reduction plates (3) are installed near the four sides of the box body (1), a plurality of silencer holes (4) are provided on one side of the noise reduction plate (3), sound insulation cotton (5) is installed inside the noise reduction plate (3), limit frames (6) are movably installed at the edges of the front and rear ends of the inner wall of the box body (1), a fixed slot (7) is provided at one end of the limit frame (6), and fixed frames (8) are symmetrically fixedly connected to the edges of the two sides of the outer surface of the box body (1), an inner groove (9) is provided at the corresponding position of the inner wall of the box body (1) and the fixed frame (8), and the bottom of the front and rear ends of the inner wall of the inner groove (9) are hinged to the limit plate (10) through a damping bearing, and a knob (12) is installed at the hinge point of one end of the limit plate (10) extending to the outside of the fixed frame (8), and a fixing component is also provided on the outer surface of the limit frame (6) for fixing the plurality of noise reduction plates (3) inside the box body (1).

2. The silencing static pressure box of the air supply system according to claim 1, characterized in that: The fixing assembly comprises a threaded hole (13), wherein the threaded hole (13) is symmetrically arranged at the front and rear ends of the noise reduction plate (3), one end of the limit frame (6) is symmetrically arranged at four sides with through holes, and one end of the limit frame (6) extends to the inside of the threaded hole (13) and is threadedly connected with a fastening bolt (14).

3. The silencing static pressure box of the air supply system according to claim 1, characterized in that: A limiting groove (11) is provided in the middle of one side of the limiting plate (10); the overall thickness of the limiting frame (6) is smaller than the distance between the front and rear ends of the inner wall of the limiting groove (11); the edge of the outer surface of the limiting frame (6) is located inside the limiting groove (11); and the limiting frame (6) and the limiting groove (11) are coupled to each other.

4. The silencing static pressure box of the air supply system according to claim 1, characterized in that: The front and rear end edges of the noise reduction plate (3) are both located inside the fixed slot (7), and a plurality of the noise reduction plates (3) are mutually engaged with the fixed slot (7).

5. The silencing static pressure box of the air supply system according to claim 2, characterized in that: The outer diameter of the fastening bolt (14) is smaller than the inner diameter of the through hole, one side of the outer surface of the fastening bolt (14) is located inside the limiting frame (6), and the fastening bolt (14) and the through hole are interlocked.

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