Closed test mute room with double-layer wall body structure

Abstract

The utility model discloses a closed test silence room with a double-layer wall structure, which comprises a silence room outer shell, an expansion box communicated with the interior of the silence room outer shell is fixedly mounted on the front surface of the silence room outer shell, an external loose-leaf door is hinged to the front surface of the expansion box, and a storage groove is formed in the side wall of the expansion box. The double-layer wall structure of the metal outer wall and the glass fiber inner wall is adopted, the sound insulation cotton is filled between the metal outer wall and the glass fiber inner wall, external noise, especially low-frequency noise, is effectively blocked, the purity of the acoustic environment in the silence room is ensured, the shock pad can reduce interference of vibration of internal equipment on acoustic testing, and the testing accuracy is further improved. And meanwhile, leakproofness and convenience for people to go in and out are achieved through the design of the expansion box and the double doors, external noise can be prevented from permeating even in the testing process, air circulation in the mute room is achieved through the air exchange assembly arranged at the top, and it is ensured that interference cannot be introduced in the air exchange process.

Description

Technical Field

[0001] This utility model relates to the field of soundproof room technology, and more specifically, to a sealed test soundproof room with a double-wall structure. Background Technology

[0002] In modern industry, scientific research, and acoustic testing, accurate acoustic performance evaluation of equipment, products, or materials is crucial. For example, in fields such as electronic equipment manufacturing, mechanical engineering, the automotive industry, and acoustic research, noise level control and testing are important indicators of product quality and performance. To obtain accurate test results, testing needs to be conducted in an environment completely isolated from external noise interference; therefore, soundproof rooms (also known as anechoic chambers) have emerged.

[0003] However, existing soundproof rooms still face some technical bottlenecks in practical applications. First, traditional single-layer wall structures are ineffective at blocking low-frequency noise, making it difficult to meet the demands of high-precision acoustic testing. Second, the airtightness of soundproof rooms is insufficient, allowing external noise to easily seep in through gaps such as door seams and ventilation openings, affecting the reliability of test results. Furthermore, vibrations from equipment and airflow within the soundproof room can also interfere with the acoustic environment, thereby reducing the accuracy of the tests. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a sealed test quiet room with a double-wall structure to solve the problems in the background technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution;

[0006] A sealed test soundproof room with a double-wall structure includes a soundproof room shell. An expansion box connected to the interior is fixedly installed on the front of the soundproof room shell. An external hinged door is hinged to the front of the expansion box. A storage slot is provided on the side wall of the expansion box. An internal sliding door is slidably installed on the inner wall of the storage slot. The internal sliding door and the external hinged door are correspondingly arranged. Two ventilation components are provided on the top of the soundproof room shell.

[0007] The soundproof room's outer shell includes a metal outer wall and a fiberglass inner wall. The fiberglass inner wall is installed on the inside of the metal outer wall, and sound insulation cotton is filled between the fiberglass inner wall and the soundproof room's outer shell.

[0008] The ventilation assembly includes a mounting base, which is fixedly installed on the top of the soundproof room shell and extends through and into the interior of the soundproof room shell. A sealing groove is provided inside the mounting base. A drive motor is fixedly installed on the front of the mounting base. The output shaft of the drive motor passes through the mounting base and extends into the interior of the sealing groove. Evenly distributed sound-absorbing panels are fixedly connected to the output shaft of the drive motor.

[0009] As a further description of the above technical solution: both the external hinged door and the internal sliding door are fixedly installed with handles on their front sides, and the handles are provided with evenly distributed anti-slip textures.

[0010] As a further description of the above technical solution: a metal sealing strip is fixedly installed on the inner wall of the expansion box, and a magnetic strip is fixedly installed on the right side of the internal sliding door. The magnetic strip is located inside the metal sealing strip and is magnetically connected to the metal sealing strip.

[0011] As a further description of the above technical solution: a dustproof plate is detachably connected to the top of the mounting base, and the dustproof plate covers the sealing groove.

[0012] As a further description of the above technical solution: the sides of some of the sound-absorbing panels away from the output shaft of the drive motor are in contact with the inner wall of the sealing groove.

[0013] As a further description of the above technical solution: shock-absorbing pads are connected to the inner wall of the soundproof room's outer shell.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] This invention employs a double-layer wall structure consisting of a metal exterior wall and a fiberglass interior wall, with sound-insulating cotton filling the space between them. This effectively blocks external noise, especially low-frequency noise, ensuring the purity of the acoustic environment inside the soundproof room. The vibration damping pad reduces the interference of internal equipment vibration on acoustic testing, further improving test accuracy. Meanwhile, the expansion box and double-door design achieve both airtightness and convenient personnel access, preventing external noise from seeping in even during testing. Furthermore, the ventilation components installed at the top allow for air circulation inside the soundproof room while ensuring that no interference is introduced during ventilation. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a top view cross-sectional structural diagram of the expansion box of this utility model;

[0018] Figure 3 This is a schematic diagram of the outer shell structure of the soundproof room according to this utility model;

[0019] Figure 4 This is a schematic cross-sectional view of the mounting base of this utility model.

[0020] Explanation of the labels in the diagram:

[0021] 1. Soundproof room outer shell; 101. Metal exterior wall; 102. Fiberglass interior wall; 103. Sound insulation cotton; 2. Expansion box; 3. External hinged door; 4. Storage slot; 5. Internal sliding door; 6. Ventilation assembly; 601. Mounting base; 602. Sealing groove; 603. Drive motor; 604. Sound-absorbing panel; 7. Handle; 8. Metal sealing strip; 9. Magnetic strip; 10. Dustproof panel; 11. Vibration damping pad. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model;

[0023] Please see Figures 1-4 In this utility model, a sealed test quiet room with a double-wall structure includes a quiet room shell 1. An expansion box 2 connected to the interior is fixedly installed on the front of the quiet room shell 1. An external hinged door 3 is hinged to the front of the expansion box 2. A storage groove 4 is opened on the side wall of the expansion box 2. An internal sliding door 5 is slidably installed on the inner wall of the storage groove 4. The internal sliding door 5 is correspondingly set with the external hinged door 3. Two ventilation components 6 are set on the top of the quiet room shell 1.

[0024] The soundproof room shell 1 includes a metal outer wall 101 and a fiberglass inner wall 102. The fiberglass inner wall 102 is installed on the inside of the metal outer wall 101, and sound insulation cotton 103 is filled between the fiberglass inner wall 102 and the soundproof room shell 1.

[0025] The ventilation assembly 6 includes a mounting base 601, which is fixedly installed on the top of the soundproof room shell 1 and extends through and into the interior of the soundproof room shell 1. A sealing groove 602 is provided inside the mounting base 601. A drive motor 603 is fixedly installed on the front of the mounting base 601. The output shaft of the drive motor 603 passes through the mounting base 601 and extends into the interior of the sealing groove 602. Evenly distributed sound-absorbing panels 604 are fixedly connected to the output shaft of the drive motor 603.

[0026] A metal sealing strip 8 is fixedly installed on the inner wall of the expansion box 2. A magnetic strip 9 is fixedly installed on the right side of the internal sliding door 5. The magnetic strip 9 is located inside the metal sealing strip 8 and is magnetically connected to the metal sealing strip 8. The sides of some sound-absorbing panels 604 that are away from the output shaft of the drive motor 603 are all in contact with the inner wall of the sealing groove 602.

[0027] The soundproof room's outer shell 1 adopts a double-wall structure, with shock-absorbing pads 11 connected to the inner wall. It consists of a metal outer wall 101 and a fiberglass inner wall 102, with sound-insulating cotton 103 filling the space between them. The metal outer wall 101 provides mechanical strength and external protection, while the fiberglass inner wall 102 has excellent sound absorption performance. The sound-insulating cotton 103 further blocks the propagation of sound waves, effectively reducing the impact of external noise on the interior of the soundproof room. In addition, the shock-absorbing pads 11 connected to the inner wall of the soundproof room's outer shell 1 reduce the interference of internal equipment vibration on the acoustic environment, ensuring the accuracy of test results.

[0028] When it is necessary to enter the soundproof room, personnel first open the outer hinged door 3 to enter the expansion box 2, then close the outer hinged door 3, then pull open the inner sliding door 5 to enter the soundproof room, and finally close the inner sliding door 5. This design allows personnel to enter and exit even during testing, while preventing the infiltration of external noise. A magnetic strip 9 is fixedly installed on the right side of the inner sliding door 5, which is magnetically connected to the metal sealing strip 8 on the inner wall of the expansion box 2, further enhancing the sealing of the door.

[0029] The top of the soundproof room shell 1 is equipped with two ventilation components 6 to achieve air circulation inside the soundproof room. When the drive motor 603 starts, it drives the sound-absorbing plate 604 to rotate in the sealing groove 602. The gap between the sound-absorbing plates 604 forms an airflow channel to achieve ventilation inside the soundproof room. At the same time, when external noise enters the sealing groove 602, it will be blocked by multiple sets of sound-absorbing plates 604 to ensure that no external noise is introduced during the ventilation process. The side of the sound-absorbing plate 604 away from the output shaft of the drive motor 603 is in contact with the inner wall of the sealing groove 602 to further reduce noise leakage.

[0030] In this invention, a double-wall structure consisting of a metal outer wall 101 and a fiberglass inner wall 102 is adopted, with sound insulation cotton 103 filling the middle, effectively blocking external noise, especially low-frequency noise, and ensuring the purity of the acoustic environment inside the soundproof room. The vibration damping pad 11 can reduce the interference of internal equipment vibration on acoustic testing, further improving the accuracy of the test. At the same time, the expansion box 2 and double door design achieve airtightness and convenient personnel access, preventing external noise from seeping in even during the test. The ventilation component 6 set at the top enables air circulation inside the soundproof room, while ensuring that no interference is introduced during the ventilation process.

[0031] Please see Figure 1 and 2 Among them, the front of both the outer hinged door 3 and the inner sliding door 5 are fixedly installed with handles 7, and the handles 7 are provided with evenly distributed anti-slip textures.

[0032] In this invention, when users open and close the outer hinged door 3 and the inner sliding door 5, the handle 7 can provide a good point of leverage, and the anti-slip texture can further improve friction and prevent the hand from slipping.

[0033] Please see Figure 1 and 4 The top of the mounting base 601 is detachably connected to a dustproof plate 10, which covers the sealing groove 602.

[0034] In this invention, the dustproof plate 10 can block dust in the airflow, thereby preventing dust from entering the interior of the soundproof room shell 1 through the sealing groove 602.

[0035] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A sealed test room with a double-walled structure, comprising a soundproof outer shell (1), characterized in that: An expansion box (2) connected to the interior is fixedly installed on the front of the soundproof room shell (1). An external hinged door (3) is hinged on the front of the expansion box (2). A storage slot (4) is provided on the side wall of the expansion box (2). An internal sliding door (5) is slidably installed on the inner wall of the storage slot (4). The internal sliding door (5) is correspondingly arranged with the external hinged door (3). Two ventilation components (6) are provided on the top of the soundproof room shell (1). The soundproof room shell (1) includes a metal outer wall (101) and a fiberglass inner wall (102). The fiberglass inner wall (102) is installed on the inside of the metal outer wall (101). Sound insulation cotton (103) is filled between the fiberglass inner wall (102) and the soundproof room shell (1). The ventilation assembly (6) includes a mounting base (601), which is fixedly installed on the top of the soundproof room shell (1) and extends through and into the interior of the soundproof room shell (1). A sealing groove (602) is provided inside the mounting base (601). A drive motor (603) is fixedly installed on the front of the mounting base (601). The output shaft of the drive motor (603) extends through the mounting base (601) and into the interior of the sealing groove (602). Evenly distributed sound-absorbing plates (604) are fixedly connected to the output shaft of the drive motor (603).

2. The sealed test room with a double-wall structure according to claim 1, characterized in that: Both the outer hinged door (3) and the inner sliding door (5) are fixedly equipped with handles (7), and the handles (7) are provided with evenly distributed anti-slip textures.

3. The sealed test room with a double-wall structure according to claim 1, characterized in that: A metal sealing strip (8) is fixedly installed on the inner wall of the expansion box (2), and a magnetic strip (9) is fixedly installed on the right side of the internal sliding door (5). The magnetic strip (9) is located inside the metal sealing strip (8) and is magnetically connected to the metal sealing strip (8).

4. The sealed test room with a double-wall structure according to claim 1, characterized in that: The top of the mounting base (601) is detachably connected to a dustproof plate (10), which covers the sealing groove (602).

5. The sealed test room with a double-wall structure according to claim 1, characterized in that: The sides of the sound-absorbing panels (604) away from the output shaft of the drive motor (603) are all in contact with the inner wall of the sealing groove (602).

6. The sealed test room with a double-wall structure according to claim 1, characterized in that: The inner wall of the soundproof room shell (1) is connected to a shock-absorbing pad (11).

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