Modular test chamber for detecting sound insulation performance of elevator panel

Abstract

The utility model discloses a modular test cabin for elevator panel sound insulation performance detection, including receiving room modular sound insulation board: 450mm's modular sound insulation board, sound reduction cabin accessory: sound reduction cabin accessory is according to different demand installation integrated equipment, receiving room frame: receiving room frame is the main load square steel frame fixed through the angle code connection, reverberation chamber modular sound insulation board: the reverberation chamber modular sound insulation board surrounds 63mm thickness's modular sound insulation board, flanging opening, and self -drilling screw is fixed through flanging hole and square steel frame connection, and two pieces of opposite buckle are installed, sound source room frame: sound source room frame is the main load square steel frame connected through the angle code, and test performance accessory: integrated temperature and humidity sensor, monitoring, sound source can detect the accessory of influence test performance, and test system: 8 channel high accuracy data acquisition system and MFF12 microphone. This test cabin system can be spliced through reverberation cabin and silence cabin to create the test environment of measuring elevator wallboard acoustic performance.

Description

Technical Field

[0001] This utility model relates to the field of acoustic testing equipment technology, and in particular to a modular test chamber for testing the sound insulation performance of elevator panels. Background Technology

[0002] Currently, the acoustic properties testing of elevator wall panels mostly uses traditional elevator car test towers, which have the following problems: 1. The testing environment is fixed and cannot flexibly adapt to samples of different sizes; 2. Sound insulation testing is greatly affected by external noise interference, resulting in a low signal-to-noise ratio; 3. The cabin structure is bulky, resulting in low efficiency in moving and installing.

[0003] Although relevant technical standards (such as GB / T 19889.5-2006) provide testing methods, they do not offer efficient solutions for the customized needs of modular panels. Utility Model Content

[0004] The purpose of this application is to provide a modular test chamber for testing the sound insulation performance of elevator panels, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this application provides the following technical solution: a modular test chamber for testing the sound insulation performance of elevator panels, including a receiving chamber modular sound insulation panel: a 450mm modular sound insulation panel with flanged openings, and self-drilling screws connected and fixed to a square steel frame through the flanged openings; Silenced Cabin Accessories: The silenced cabin accessories are integrated equipment installed according to different needs; Receiving chamber frame: The receiving chamber frame is a main load-bearing square steel frame that is fixed by angle brackets; Modular sound insulation panel for reverberation chamber: The modular sound insulation panel for reverberation chamber is a 63mm thick modular sound insulation panel with flanged openings. Self-drilling screws are used to connect and fix it to the square steel frame through the flanged openings. The two panels are interlocked during installation. Sound source chamber frame: The sound source chamber frame is a main load-bearing square steel frame that is fixed by angle brackets; Test performance accessories: integrates temperature and humidity sensors, monitoring, and sound sources to detect accessories that affect test performance; Test system: 8-channel high-precision data acquisition system and MFF12 microphone, the sound source uses Test-AS100 series loudspeakers, and insertion loss is calculated with BOACH Acoustics Lab software.

[0006] Preferably, the center of the receiving chamber frame and the sound source chamber frame has a window of the required size reserved as a sample fixing point, and the size of the space between the frames is consistent with the size of the modular sound insulation panel.

[0007] Preferably, the receiving chamber frame and the sound source chamber frame are fixed together by welding clamps.

[0008] Preferably, the window includes a sample fixing window and a sample testing window. The sample fixing window is supported by an angle steel base. Appropriate and a suitable number of pressure fixtures of appropriate specifications are installed in the reverberation chamber to press the sample tightly onto the angle steel. A movable arm and a microphone clamp are installed on the other side of the window.

[0009] Preferably, the sample testing window is equipped with a movable arm and a microphone clamp on the side of the anechoic chamber.

[0010] Preferably, the modular sound insulation panel for the receiving chamber and the modular sound insulation panel for the reverberation chamber are composed of a multi-layer structure consisting of a steel plate layer, a damping layer, a high-grade fireproof material, a superstructure, a steel plate layer, a sound-absorbing and insulating cotton layer, and a perforated plate layer.

[0011] In summary, the technical effects and advantages of this utility model are as follows: 1. Supports rapid installation and testing of elevator panels of different thicknesses and sizes; 2. Increase the sound pressure level difference between the interior and exterior of the cabin to reduce environmental noise interference; 3. Improve cabin deployment efficiency through modular design and mobile solutions. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of a modular test chamber for testing the sound insulation performance of an elevator panel, as described in an embodiment of this application. Figure 2 This is a schematic diagram of the soundproofing chamber accessory structure of a modular test chamber for testing the sound insulation performance of an elevator panel, as described in an embodiment of this application. Figure 3 This is a schematic diagram of the modular sound insulation panel structure of the receiving chamber of a modular test chamber for testing the sound insulation performance of an elevator panel, as described in an embodiment of this application. Figure 4 This is a schematic diagram of the reverberation chamber modular sound insulation panel structure of a modular test chamber for testing the sound insulation performance of an elevator panel, as described in an embodiment of this application. Figure 5 This is a schematic diagram of the receiving chamber frame structure of a modular test chamber for testing the sound insulation performance of an elevator panel, as described in an embodiment of this application.

[0014] In the diagram: 1. Modular sound insulation panel for the receiving chamber; 2. Silencing chamber accessories; 3. Frame of the receiving chamber; 4. Modular sound insulation panel for the reverberation chamber; 5. Frame of the sound source chamber. Detailed Implementation

[0015] 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.

[0016] In the description of this disclosure, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] It should also be noted that all standard parts used in this application are commercially available, and can be custom-made according to the description and drawings. Unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances, and unless explicitly limited, machinery, parts, and equipment can all adopt conventional models in the prior art.

[0018] In this document, the term "comprising" is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0019] Example: Reference Figure 1-5The modular test chamber shown is used for testing the sound insulation performance of elevator panels. It includes a 1:450mm modular sound insulation panel for receiving chamber, with flanged openings and self-drilling screws connected and fixed to the square steel frame through the flanged openings. Silencing chamber accessory 2: The silencing chamber accessory is an integrated device installed according to different needs; Receiving chamber frame 3: The receiving chamber frame is a main load-bearing square steel frame that is fixed by angle brackets; Modular sound insulation panel 4 for reverberation chamber: The modular sound insulation panel for reverberation chamber is a 63mm thick modular sound insulation panel with flanged openings. Self-drilling screws are used to connect and fix it to the square steel frame through the flanged openings. The two panels are interlocked during installation. Sound source chamber frame 5: The sound source chamber frame is a main load-bearing square steel frame that is fixed by angle brackets; Test performance accessory 5: integrates temperature and humidity sensors, monitoring, and sound source to detect accessories that affect test performance; Test system: 8-channel high-precision data acquisition system and MFF12 microphone, the sound source uses Test-AS100 series loudspeakers, and insertion loss is calculated with BOACH Acoustics Lab software.

[0020] With the above structure: the center of the two compartments of the receiving chamber frame and the sound source chamber frame has a window of the required size reserved as a sample fixing point, and the size of the space between the frames is consistent with the size of the modular sound insulation panel.

[0021] With the above structure, the receiving chamber frame and the sound source chamber frame are fixed together by welding clamps. Angle steel and reinforcing ribs are fixed to the lower part of both sides of the frame. Claw-type hydraulic jacks are combined with the load-bearing tank vehicle to support multi-directional movement of the chambers.

[0022] With the above structure: the window includes a sample fixing window and a sample testing window. The sample fixing window is supported by an angle steel base. Appropriate and a suitable number of pressure fixtures of appropriate specifications are installed in the reverberation chamber to press the sample tightly onto the angle steel. A movable arm and a microphone clamp are installed on the other side of the window.

[0023] With the above structure, the sample testing window has a movable arm and a microphone clamp installed on the side of the anechoic chamber.

[0024] With the above structure, the modular sound insulation panels of the receiving room and the modular sound insulation panels of the reverberation room are composed of a multi-layer structure of steel plate layer - damping layer - high-grade fireproof material - super structure - steel plate layer - sound-absorbing and sound-insulating cotton layer - perforated plate layer, and are spliced ​​with SPH065 (140-150mm thick, sound insulation ≥35dB) and SPH450 (450-460mm thick, sound insulation ≥38dB) modular sound insulation panels.

[0025] Implementation steps: 1. The main frame of the sound source chamber is assembled using four main specifications of square steel tubing: 140mm×140mm×4mm, 140mm×80mm×4mm, 40mm×30mm×1.5mm, and 60mm×30mm×2mm. The 140mm×140mm×4mm square steel tubing serves as the main beams at each corner of the frame, constructing the main support structure. Extended support structures are formed by welding 60mm×30mm×2mm and 40mm×30mm×1.5mm square steel tubing, used for the interlocking installation of the sound insulation panels. 2. The receiving chamber frame is constructed using square steel of the same specifications as the reverberation chamber, ensuring that the window positions are completely aligned. 3. Install SPH065 and SPH450 sound insulation panels in the sound source and receiving rooms; 4. Configure the Test-DR-DRH08 data acquisition system and MFF12 microphone, and place them in designated locations inside and outside the cabin; 5. Install the adjustable snap-on sample clamp to fix the elevator panel to be tested (800mm×800mm). 6. Start the sound source, acquire sound pressure data using BOACH Acoustics Lab software, and calculate the insertion loss (IL=SPL). L-wo - SPL L-w ); 7. Verify the cabin's sound insulation performance (sound pressure level difference index) and generate a test report.

[0026] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are 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 modular test chamber for testing the sound insulation performance of elevator panels, characterized in that: include: Modular sound insulation panel for receiving room: 450mm modular sound insulation panel with flanged openings, and self-drilling screws are used to connect and fix it to the square steel frame through the flanged holes; Silenced Cabin Accessories: The silenced cabin accessories are integrated equipment installed according to different needs; Receiving chamber frame: The receiving chamber frame is a main load-bearing square steel frame that is fixed by angle brackets; Modular sound insulation panel for reverberation chamber: The modular sound insulation panel for reverberation chamber is a 63mm thick modular sound insulation panel with flanged openings. Self-drilling screws are used to connect and fix it to the square steel frame through the flanged openings. The two panels are interlocked during installation. Sound source chamber frame: The sound source chamber frame is a main load-bearing square steel frame that is fixed by angle brackets; Test performance accessories: integrates temperature and humidity sensors, monitoring, and sound sources to detect accessories that affect test performance; Test system: 8-channel high-precision data acquisition system and MFF12 microphone, the sound source uses Test-AS100 series loudspeakers, and insertion loss is calculated with BOACH Acoustics Lab software.

2. The modular test chamber for testing the sound insulation performance of elevator panels according to claim 1, characterized in that: The receiving chamber frame and the sound source chamber frame have windows of the required size reserved in the center of their respective compartments as sample fixing points, and the size of the space between the frames is consistent with the size of the modular sound insulation panel.

3. The modular test chamber for testing the sound insulation performance of elevator panels according to claim 1, characterized in that: The receiving chamber frame and the sound source chamber frame are fixed together by welding clamps.

4. A modular test chamber for testing the sound insulation performance of elevator panels according to claim 2, characterized in that: The window includes a sample fixing window and a sample testing window. The sample fixing window is supported by an angle steel base. Appropriate and a suitable number of pressure fixtures of appropriate specifications are installed in the reverberation chamber to press the sample tightly onto the angle steel. A movable arm and a microphone clamp are installed on the other side of the window.

5. A modular test chamber for testing the sound insulation performance of elevator panels according to claim 4, characterized in that: The sample testing window has a movable arm and a microphone clamp installed on the side of the anechoic chamber.

6. A modular test chamber for testing the sound insulation performance of elevator panels according to claim 1, characterized in that: The modular sound insulation panels for the receiving chamber and the modular sound insulation panels for the reverberation chamber are composed of a multi-layer structure consisting of a steel plate layer, a damping layer, a high-grade fireproof material, a superstructure, a steel plate layer, a sound-absorbing and sound-insulating cotton layer, and a perforated plate layer.

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