Silencing static pressure box

Abstract

The utility model discloses a noise elimination plenum chamber, which comprises first sealing sound insulation main bodies, connecting ends, a chamber body, second sealing sound insulation main bodies and mounting clamping grooves, the connecting ends are fixedly connected to the two ends of the chamber body, and the first sealing sound insulation main bodies are arranged on the upper side end face and the lower side end face of the chamber body. When the fixing frame is used and the noise reduction performance is reduced, the first sealing sound insulation main body and the second sealing sound insulation main body can be conveniently taken down from the box body to be integrally replaced by screwing the fixing bolts at all positions, so that the noise reduction performance is greatly improved. Or polyester fiber boards and EVA buffer cotton gaskets fixed through bolts in the first sealing sound insulation main body and the second sealing sound insulation main body are replaced, so that the equipment can be adjusted and control the silencing effect in a matched mode conveniently in the using process, the equipment is convenient to use and adjust, and the good silencing and static pressure performance is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of silencing static pressure boxes, in particular to a silencing static pressure box. Background Art

[0002] The anechoic static pressure box is a device that can reduce the noise of air flow and stabilize the airflow pressure. It is usually used in conjunction with fresh air units, fan coils, etc. to reduce the airflow noise at the air outlet, increase the static pressure of the system, and thus improve the air supply effect. However, the existing anechoic static pressure box has a poor internal silencing effect during use, and when the silencing effect is not good during use, it is not convenient to change and adjust and control the silencing performance and level due to the practical fixed installation, so that the anechoic static pressure box cannot be used stably and continuously for a long time. Therefore, a device is needed to solve the above problems. Utility Model Content

[0003] The purpose of the utility model is to provide a noise-absorbing static pressure box to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a silencing static pressure box, comprising a first sealed sound insulation body, a connecting end, a box body, a second sealed sound insulation body and a mounting slot, wherein the connecting end is fixedly connected to the two ends of the box body, the first sealed sound insulation body is arranged on the upper and lower side end surfaces of the box body, the second sealed sound insulation body is arranged on the left and right side end surfaces of the box body, and the first sealed sound insulation body and the second sealed sound insulation body have the same structure, the mounting slot is opened on the side end of the box body, and the mounting slot is adapted to the first sealed sound insulation body and the second sealed sound insulation body.

[0005] Preferably, a sealing sound-isolating gasket is fixedly installed inside the mounting slot.

[0006] Preferably, the first sealing sound insulation body includes a polyester fiber board, a clamping connection groove, a fixed sound insulation board and a fixing bolt, the fixed sound insulation board is arranged on the inner sides of both ends of the clamping connection groove, the polyester fiber board is fixedly connected to the side end of the clamping connection groove, and the fixing bolt is evenly threaded and inserted into the clamping connection groove.

[0007] Preferably, an EVA cushioning cotton gasket is fixedly connected to the side end of the polyester fiberboard facing away from the fastening connection groove.

[0008] Preferably, the clamping connection groove is clamped to the box body by fixing the sound insulation plate and the installation clamping groove, and the inner side of the edge of the clamping connection groove is squeezed into contact with the sealing sound insulation gasket, and the fixing bolt is threadedly inserted into the box body.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0010] The present utility model can be connected and used through the connection end. During the process of fixed erection and use of the device, when the sound insulation performance decreases, by screwing the fixing bolts at each position, the first sealed sound insulation main body and the second sealed sound insulation main body can be conveniently removed from the box body for overall replacement, or the polyester fiber board and EVA buffer cotton gasket fixed by bolts in the first sealed sound insulation main body and the second sealed sound insulation main body can be replaced, so that during the process of fixed erection and use of the device, the adaptation adjustment and control of the sound insulation effect can be conveniently carried out, the device is convenient to use and adjust, and has good sound insulation and static pressure performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic three-dimensional structure diagram of the main body of the present utility model;

[0012] Figure 2 is a schematic exploded structure diagram of the main body in the present utility model;

[0013] Figure 3 is a schematic structure diagram of the first sealed sound insulation main body in the present utility model.

[0014] In the figure: 1 - first sealed sound insulation main body, 2 - connection end, 3 - box body, 4 - second sealed sound insulation main body, 5 - sealed sound insulation gasket, 6 - installation card slot, 7 - EVA buffer cotton gasket, 8 - polyester fiber board, 9 - clamping connection groove, 10 - fixed sound insulation board, 11 - fixing bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0016] Please refer to Figures 1-3 , an embodiment provided by the present utility model: a sound-absorbing static pressure box, including a first sealed sound insulation main body 1, a connection end 2, a box body 3, a second sealed sound insulation main body 4 and an installation card slot 6. The connection end 2 is fixedly connected to both ends of the box body 3. The first sealed sound insulation main body 1 is arranged on the upper and lower side end faces of the box body 3. The second sealed sound insulation main body 4 is arranged on the left and right side end faces of the box body 3. And the structures of the first sealed sound insulation main body 1 and the second sealed sound insulation main body 4 are the same. The installation card slot 6 is opened on the side end of the box body 3, and the installation card slot 6 is adapted to the first sealed sound insulation main body 1 and the second sealed sound insulation main body 4.

[0017] The first sealed sound insulation body 1 includes a polyester fiber board 8, a clamping connection groove 9, a fixed sound insulation board 10 and a fixing bolt 11. The fixed sound insulation board 10 is arranged on the inner side of both ends of the clamping connection groove 9. The polyester fiber board 8 is fixedly connected to the side end of the clamping connection groove 9. The fixing bolt 11 is evenly threaded and inserted into the clamping connection groove 9. The polyester fiber board 8 and the clamping connection groove 9 are sufficiently soundproofed and easy to disassemble and fix.

[0018] The side end of the polyester fiber board 8 facing away from the fastening connection groove 9 is fixedly connected with an EVA cushioning cotton gasket 7, and the EVA cushioning cotton gasket 7 has sufficient sound absorption and sound insulation effects.

[0019] The clamping connection groove 9 is clamped and connected to the box body 3 by fixing the sound insulation board 10 and the installation clamping groove 6. The sealing sound insulation gasket 5 is clamped and installed inside the installation clamping groove 6, and the inner side of the edge of the clamping connection groove 9 is squeezed and contacted with the sealing sound insulation gasket 5, which has the effect of sealing and sound insulation. The fixing bolt 11 is threadedly inserted into the box body 3 for easy fixing and disassembly.

[0020] Working principle: During use, the connection can be achieved through the connecting end 2. During the fixed installation and use of the device, when the sound insulation performance is reduced, the first sealed sound insulation body 1 and the second sealed sound insulation body 4 can be conveniently removed from the box body 3 and replaced as a whole by screwing the fixing bolts 11 at various positions, or the polyester fiber board 8 and the EVA buffer cotton gasket 7 fixed by bolts in the first sealed sound insulation body 1 and the second sealed sound insulation body 4 can be replaced, so that during the installation and fixed use of the device, the sound insulation effect can be conveniently adapted and controlled, and the device is easy to use and adjust, and has good sound insulation and static pressure performance.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A silencing static pressure box, comprising a first sealing sound insulation body (1), a connecting end (2), a box body (3), a second sealing sound insulation body (4) and a mounting slot (6), characterized in that: The connecting end (2) is fixedly connected to the two ends of the box body (3); the first sealed sound insulation body (1) is arranged on the upper and lower side end surfaces of the box body (3); the second sealed sound insulation body (4) is arranged on the left and right side end surfaces of the box body (3); the first sealed sound insulation body (1) and the second sealed sound insulation body (4) have the same structure; the mounting slot (6) is provided at the side end of the box body (3); and the mounting slot (6) is adapted to the first sealed sound insulation body (1) and the second sealed sound insulation body (4).

2. The silencing static pressure box according to claim 1, characterized in that: A sealing sound insulation gasket (5) is fixedly mounted inside the installation slot (6).

3. The silencing plenum box according to claim 2, characterized in that: The first sealing sound insulation body (1) comprises a polyester fiber board (8), a clamping connection groove (9), a fixed sound insulation board (10) and a fixing bolt (11); the fixed sound insulation board (10) is arranged on the inner sides of both ends of the clamping connection groove (9); the polyester fiber board (8) is fixedly connected to the side end of the clamping connection groove (9); and the fixing bolt (11) is evenly threaded and inserted into the clamping connection groove (9).

4. The silencing static pressure box according to claim 3, characterized in that: An EVA cushioning cotton pad (7) is fixedly connected to the side end of the polyester fiber board (8) facing away from the fastening connection groove (9).

5. The silencing static pressure box according to claim 4, characterized in that: The clamping connection groove (9) is clamped and connected to the box body (3) through a fixed sound insulation plate (10) and an installation clamping groove (6), and the inner side of the edge of the clamping connection groove (9) is in compression contact with the sealing sound insulation gasket (5), and the fixing bolt (11) is threadedly inserted into the box body (3).

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