Composite pit silencing equipment

Abstract

The utility model relates to composite pit silencing equipment which comprises a main body and further comprises a mounting face used for mounting the main body, the main body comprises an inner shell and an outer shell, and a silencing assembly is arranged on the inner side of the inner shell; a mounting groove for mounting the inner shell and the outer shell is formed in the mounting surface, and a boss is arranged in the mounting groove; the inner shell is embedded into the mounting groove, and the inner shell is attached to the side wall of the boss; the outer shell is arranged outside the inner shell, and the bottom of the outer shell is embedded above the boss. According to the utility model, the first silencing plate, the second silencing plate and the third silencing plate are arranged to carry out multiple silencing treatment, so that the silencing effect is good; based on the arrangement of the sound insulation material between the inner shell and the outer shell and the arrangement of the springs among the inner shell, the outer shell and the mounting surface, the vibration can be further eliminated, so that the generation of secondary noise is reduced, and the sound attenuation is faster; and a remote transmission module and a sound detector are arranged, so that the decibel of the noise can be monitored in real time and fed back to a worker, and the worker can conveniently adjust the equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of composite sound insulation equipment, in particular to a composite pit sound insulation equipment. Background Art

[0002] When the noise values of various noise sources such as equipment, pipelines and steam emissions reach 90 - 120 decibels, it will have a great impact on the physical health and sleep of work, life and surrounding residents.

[0003] The current sound insulation method is to install a small muffler at the outlet of the noise source, but the noise value after sound insulation by the current muffler is still as high as 90 - 120 decibels.

[0004] Chinese Utility Model Patent CN207585385U discloses a composite pit sound insulation tower, which includes a base, several steel columns arranged on the base, a shockproof frame surrounded by the steel columns, a sand pile arranged at the bottom of the shockproof frame, several maze sound insulation plates arranged above the sand pile, an air - equalizing sound insulation plate arranged above the maze sound insulation plates, two groups of microporous sound absorption plates arranged above the air - equalizing sound insulation plate, and a top cover arranged on the upper part of the shockproof frame. The top cover includes a cover wall composed of sound absorption plates and a top cover sound absorption plate arranged in the top cover. The utility model reduces the pressure drop applied to each local structure, controls the flow velocity through the minimum cross - section below the critical flow velocity and as low as possible, so as to achieve the purpose of reducing jet noise. Different pit sound insulation towers can be designed according to different noise values on site, and the equipment noise can be reduced to within the national standard range.

[0005] However, it still has the following problems:

[0006] The vibration of its shockproof frame will generate noise. After the construction is completed, the treatment effect of the noise cannot be monitored. Moreover, the sound insulation plates are directly assembled inside its shell (shockproof frame), and the noise generated by resonance will cause secondary sound pollution, and it is not convenient to use. Summary of the Invention

[0007] Technical Problems to be Solved by the Utility Model

[0008] The vibration of its shockproof frame will generate noise. After the construction is completed, the treatment effect of the noise cannot be monitored. Moreover, the sound insulation plates are directly assembled inside its shell (shockproof frame), and the noise generated by resonance will cause secondary sound pollution, and it is not convenient to use.

[0009] Technical Solutions for Solving the Technical Problems

[0010] Other advantageous and partially creative implementation manners and extended designs of the utility model are described in the following description.

[0011] A composite pit sound insulation equipment, including a main body, further including:

[0012] The installation surface for installing the main body, the main body includes an inner shell and an outer shell, and a sound insulation component is arranged inside the inner shell;

[0013] The installation surface is provided with installation grooves for installing the inner shell and the outer shell, and bosses are arranged in the installation grooves;

[0014] The inner shell is embedded in the installation groove, the inner shell is attached to the side wall of the boss, and an installation platform corresponding to the boss is arranged on the outer wall of the inner shell;

[0015] The outer shell is arranged outside the inner shell, and its bottom is embedded above the boss.

[0016] Preferably, the installation groove is set as a countersunk head groove, and the installation groove slides above the boss.

[0017] Preferably, a plurality of springs are arranged between the outer shell and the inner shell, and between the installation platform and the boss.

[0018] Preferably, the sound insulation component includes;

[0019] The first sound absorption board, arranged inside the inner shell; [[ID=...]]

[0020] The second sound absorption board, arranged inside the inner shell and above the first sound absorption board;

[0021] The third sound absorption board, arranged at the top end of the inner shell.

[0022] Preferably, the number of the first sound absorption boards is several and they are staggered inside the inner shell.

[0023] Preferably, the second sound absorption board is set as a porous sound absorption board, and the number is at least 2.

[0024] Preferably, the third sound absorption board is set as a cone and is fixed to the top of the inner shell through a mounting post;

[0025] A sound detector and a remote transmission module are arranged on one side of the outer wall of the outer shell close to the third sound absorption board.

[0026] Preferably, sound insulation materials are filled between the inner wall of the inner shell and between the inner shell and the outer shell.

[0027] Effects of the utility model

[0028] 1. Set the first sound insulation board (refraction), the second sound insulation board (absorption) and the third sound insulation board (reflection and dispersion) for multi-channel sound insulation treatment, and the sound insulation effect is good;

[0029] 2. Based on the setting of the sound insulation material between the inner shell and the outer shell, and the spring setting between the inner shell, the outer shell and the installation surface, vibration can be further eliminated, thereby reducing the generation of secondary noise and achieving faster sound attenuation.

[0030] 3. By setting up a remote transmission module and a sound detector, the decibel level of the noise can be monitored in real time and feedback to the staff, which is convenient for the staff to adjust the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The embodiments of the present invention will be described in detail below with reference to the drawings. In the drawings:

[0032] Figure 1 is the structural view of the present invention;

[0033] Figure 2 is the cross-sectional view of the present invention;

[0034] Figure 3 is the structural view of the present invention with the outer shell, inner shell, sound insulation material and installation surface hidden.

[0035] DESCRIPTION OF THE REFERENCE NUMERALS

[0036] 1. Installation surface; 1-1. Boss; 2. Outer shell; 201. Inner shell; 201-1. Installation table; 202. Spring; 3. Sound insulation material; 4. First sound absorption board; 401. Second sound absorption board; 402. Third sound absorption board; 402-1. Installation column; 5. Sound detector; 501. Remote transmission module. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0037] Hereinafter, a composite pit sound attenuation device as an embodiment of the present invention will be described with reference to the drawings.

[0038] Please refer to Figures 1 - 3 As shown, a composite pit sound attenuation device includes a main body, the main body includes an outer shell 2 and an inner shell 201, a sound attenuation component is arranged inside the inner shell 201, and the outer shell 2 is arranged on the installation surface 1;

[0039] A noise source inlet communicating with the inside of the inner shell 201 is arranged inside the installation surface 1;

[0040] A noise source inlet extending into the inside of the inner shell 201 penetrates through the inner shell 201 and the outer shell 2;

[0041] The noise enters the bottom of the inner shell 201, and after being attenuated by the sound attenuation component inside the inner shell 201, it is discharged from the top of the inner shell 201;

[0042] [ Specifically, the installation surface 1 is the ground (cement, soil, paved ground);

[0043] An installation surface 1 is provided with installation grooves for installing an inner shell 201 and an outer shell 2;

[0044] Specifically, a boss 1-1 is provided in the installation groove, and the installation groove is set as a countersunk head groove;

[0045] Regarding the inner shell 201, it is embedded in the installation groove and fits against the side wall of the boss 1-1;

[0046] An installation platform 201-1 is provided on the outer wall of the inner shell 201 and above the boss 1-1;

[0047] Specifically, the installation platform 201-1 can slide above the boss 1-1;

[0048] Regarding the outer shell 2, it is arranged outside the inner shell 201, and its bottom is embedded above the boss 1-1;

[0049] A number of springs 202 are provided between the outer shell 2 and the inner shell 201, and between the installation platform 201-1 on the outer wall of the inner shell 201 and the boss 1-1;

[0050] During use, part of the vibration generated by the inner shell 201 due to sound impact can be absorbed by the springs 202 between the outer shell 2 and the inner shell 201, and between the installation platform 201-1 and the boss 1-1;

[0051] Regarding the sound absorption component, it includes:

[0052] A first sound absorption board 4, which is arranged inside the inner shell 201;

[0053] Specifically, the number of the first sound absorption boards 4 is several, and they are arranged alternately inside the inner shell 201;

[0054] During use, the function of the first sound absorption board 4 is to reflect the noise wave inside the inner shell 201 for preliminary sound absorption;

[0055] A second sound absorption board 401, which is installed on the inner side of the inner shell 201 and above the first sound absorption board 4;

[0056] Specifically, the second sound absorption board 401 is set as a porous sound absorption board, and the number is at least two, and the holes for absorbing noise of the two second sound absorption boards 401 are vertically staggered;

[0057] During use, the function of the second sound absorption board 401 is to further absorb the noise processed by the first sound absorption board 4 to achieve multi-channel sound absorption processing;

[0058] A third sound absorption board 402, which is installed at the top end of the inner shell 201;

[0059] Specifically, the third sound-absorbing panel 402 is arranged in a conical sleeve, and the third sound-absorbing panel 402 is installed at the top of the inner shell 201 through the mounting posts 402-1;

[0060] During use, the function of the third sound-absorbing panel 402 is to reflect and absorb the noise processed by the second sound-absorbing panel 401, and process it into noise emissions within the specified threshold;

[0061] A sound detector 5 and a remote transmission module 501 are arranged on one side of the outer shell 2 close to the third sound-absorbing panel 402. When the noise decibel exceeds the set threshold, it is transmitted to the staff through the remote transmission module 501, facilitating the staff to know the sound absorption effect of the noise source in real time;

[0062] Specifically, the remote transmission module 501 adopts a 4G / 5G transmission component;

[0063] Sound insulation materials 3 are filled between the inner wall of the inner shell 201 and between the inner shell 201 and the outer shell 2. The sound insulation materials 3 are used to absorb the vibration and noise of the first sound-absorbing panel, the second sound-absorbing panel and the third sound-absorbing panel, and relieve the noise generated during the operation of the device.

[0064] Compared with the prior art, the utility model has the following characteristics:

[0065] 1. Multiple sound absorption treatments are carried out by setting the first sound-absorbing panel (refraction), the second sound-absorbing panel (absorption) and the third sound-absorbing panel (reflection and dispersion), and the sound absorption effect is good;

[0066] 2. Based on the setting of the sound insulation material 3 between the inner shell 201 and the outer shell 2, and the setting of the spring 202 between the inner shell 201, the outer shell 2 and the mounting surface 1, the vibration can be further eliminated, thereby reducing the generation of secondary noise and achieving faster sound absorption;

[0067] 3. By setting the remote transmission module 501 and the sound detector 5, the decibel of the noise can be monitored in real time and feedback to the staff, which is convenient for the staff to adjust the equipment.

[0068] The utility model is not limited to the embodiments, and various deformations can be implemented as long as its purpose is not violated.

Claims

1. A composite pit sound absorption device, comprising a main body, characterized in that: Further included are: An installation surface (1) for installing the main body. The main body includes an inner shell (201) and an outer shell (2), and a sound absorption component is provided inside the inner shell (201); On the installation surface (1), installation grooves for installing the inner shell (201) and the outer shell (2) are provided, and a boss (1-1) is provided in the installation grooves; The inner shell (201) is embedded in the installation grooves. The inner shell (201) is in contact with the side wall of the boss (1-1), and an installation platform (201-1) corresponding to the boss (1-1) is provided on the outer wall of the inner shell (201); The outer shell (2) is arranged outside the inner shell (201), and its bottom is embedded above the boss (1-1).

2. The composite pit sound insulation device according to claim 1, characterized in that: The installation grooves are set as counterbore grooves and slide above the boss (1-1).

3. The composite pit sound insulation device according to claim 1, characterized in that: A number of springs (202) are provided between the outer shell (2) and the inner shell (201), and between the installation platform (201-1) and the boss (1-1).

4. A composite pit sound insulation device according to claim 1, characterized in that: The sound absorption component includes; A first sound absorption board (4), provided inside the inner shell (201); A second sound absorption board (401), provided inside the inner shell (201) and above the first sound absorption board (4); A third sound absorption board (402), provided at the top of the inner shell (201).

5. The composite pit sound insulation device according to claim 4, characterized in that: The number of the first sound absorption boards (4) is several and they are arranged staggered inside the inner shell (201).

6. A composite pit sound insulation device according to claim 4, characterized in that: The second sound absorption board (401) is set as a porous sound absorption board, and the number is at least 2.

7. The composite pit sound insulation device according to claim 4, characterized in that: The third sound absorption board (402) is set as a cone and is fixed to the top of the inner shell (201) through an installation column (402-1); A sound detector (5) and a remote transmission module (501) are provided on one side of the outer wall of the outer shell (2) close to the third sound absorption board (402).

8. A composite pit sound insulation device according to claim 1, characterized in that: Sound insulation materials (3) are filled between the inner wall of the inner shell (201) and between the inner shell (201) and the outer shell (2).

Images