Sound loss detection device for waterproof sound transmission membrane

Abstract

The utility model discloses a waterproof sound transmission membrane sound loss detection device which comprises a detection device body, a detection assembly and a clamping assembly are arranged in the detection device body, a second sliding rail is installed in the detection device body, a limiting block is arranged at one end of the second sliding rail, and the clamping assembly comprises a sliding seat. A plurality of fixing plates are arranged above the sliding seat, a groove is formed in the rear end of the fixing plate at the rear end of the sliding seat, a threaded hole is formed in the fixing plate at the front end of the sliding seat, through holes are formed in the upper end and the lower end of the threaded hole, a rotating handle is rotationally installed in the threaded hole of the fixing plate, and a bearing seat is installed at the end of the rotating handle. A clamping plate is installed at the end of the bearing seat, and a plurality of anti-skid rubber pads are arranged on the outer wall, away from the bearing seat, of the clamping plate. The anti-skid rubber pads are arranged on the outer walls of the clamping plates, so that the sound transmission films can be prevented from sliding, and the sound transmission films are prevented from being stacked together to influence the detection result.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, in particular to a waterproof sound-permeable membrane sound loss detection device. Background Art

[0002] Membrane sound loss refers to the attenuation of sound as it passes through the membrane, typically measured in decibels. Sound attenuates during propagation due to absorption, scattering, and refraction, resulting in reduced intensity, frequency shifts, and directional blurring. Testing waterproof and sound-permeable membranes for sound loss in decibels is a key performance indicator. The testing method involves preparing suitable waterproof and sound-permeable membrane samples, using equipment such as acoustic meters and speakers, recording the sound intensity before and after passing through the membrane, and calculating the amount of sound attenuation. Utility Model Content

[0003] The purpose of the utility model is to further configure the device to solve the shortcomings of the prior art and propose a waterproof sound-permeable membrane sound loss detection device.

[0004] The device is further configured to achieve the above-mentioned purpose, and the utility model adopts the following technical solutions:

[0005] The cam is provided with a plurality of guide rails, and a plurality of guide rails are provided on the cam, and a plurality of guide rails are provided on the cam.

[0006] As a further solution of the present invention: the detection device also includes sound-absorbing cotton, and the sound-absorbing cotton is installed on the inner wall of the detection device body.

[0007] As a further solution of the present invention: the detection component includes a pneumatic telescopic rod, which is installed at the front end of the second slide rail, and a connecting plate is installed at the output end of the pneumatic telescopic rod, and a speaker is installed on the outer wall of the connecting plate close to the second slide rail.

[0008] As a further solution of the present invention: the detection component also includes slide rail one, which is installed at the rear end of slide rail two, and a screw is rotatably installed in slide rail one. A stepper motor is installed on the outer wall of the detection device body away from slide rail two, and the output end of the stepper motor passes through the detection device body and is connected to the screw in slide rail one.

[0009] As a further solution of the present invention: the detection component also includes a fixed seat, which is slidably mounted on the screw of the slide rail 1, and an acoustic measuring instrument is installed on the fixed seat.

[0010] As a further solution of the present invention: the detection device also includes a laser rangefinder, which is installed at the bottom of one side of the fixed seat, and a reflective plate is installed on the front of the fixed plate at the front end of the slide seat.

[0011] As a further solution of the present invention: the detection device also includes a control panel, which is installed on the outer wall of the detection device body away from the limit block on the second slide rail, an electrical box is installed on the outer wall of the detection device body, and a glass window is rotatably installed on the outer wall of the detection device body close to the control panel, and a handle is provided on the glass window.

[0012] The beneficial effects of the utility model are:

[0013] 1. Take the slide out of the device and place the acoustic membrane in the fixed plate. Rotate the handle to drive the clamping plate to move, so that the clamping plate clamps the acoustic membrane. During the clamping process, adjust the acoustic membrane to prevent wrinkles until the membrane is fixed in the groove of the fixed plate. Install anti-slip rubber pads on the outer wall of the clamping plate to prevent the acoustic membrane from sliding, thereby preventing the acoustic membrane from piling up and affecting the test results.

[0014] 2. By installing sound-absorbing cotton, the interior of the monitoring device can be silenced to avoid echoes during the detection process that may affect the detection results.

[0015] 3. The height of the connecting plate is controlled by driving the pneumatic telescopic rod to prevent affecting the movement of the clamping assembly. The sound is emitted by a speaker, and sound loss occurs when the sound passes through the sound-permeable membrane. The sound is received by an acoustic measuring instrument to calculate the sound loss. The screw in the slide rail 1 is driven by a stepper motor to rotate, so that the acoustic measuring instrument adjusts the distance between it and the sound-permeable membrane, thereby measuring the sound loss at different distances multiple times. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a waterproof and sound-permeable membrane sound damage detection device proposed in the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of a waterproof and sound-permeable membrane sound loss detection device proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the detection component proposed in the utility model;

[0019] Figure 4 This is a schematic structural diagram of the clamping assembly proposed in the present invention.

[0020] In the figure: 1- detection device body, 2- electrical box, 3- control panel, 4- detection component, 5- clamping component, 6- sound-absorbing cotton, 7- slide rail 1, 8- stepping motor, 9- fixed seat, 10- acoustic measuring instrument, 11- slide rail 2, 12- pneumatic telescopic rod, 13- connecting plate, 14- speaker, 15- slide seat, 16- fixed plate, 17- turning handle, 18- clamping plate, 19- bearing seat, 20- guide rod, 21- reflector, 22- laser rangefinder. DETAILED DESCRIPTION

[0021] The technical solution of the present utility model will be further described in detail below in conjunction with specific implementation methods.

[0022] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0023] Example 1

[0024] A waterproof sound-permeable membrane sound loss detection device, such as Figures 1-4 As shown, it includes a detection device body 1, a detection component 4 and a clamping component 5 are provided in the detection device body 1, a slide rail 2 11 is installed inside the detection device body 1, a limit block is provided at one end of the slide rail 2 11, and the clamping component 5 includes a slide seat 15, and the slide seat 15 is slidably installed on the slide rail 2 11, and a plurality of fixing plates 16 are provided above the slide seat 15, and a groove is provided at the rear end of the fixing plate 16 at the rear end of the slide seat 15, and a threaded hole is provided on the fixing plate 16 at the front end of the slide seat 15, and through holes are provided at the upper and lower ends of the threaded hole, and a turning handle 17 is rotatably installed in the threaded hole of the fixing plate 16, and a bearing seat 19 is installed at the end of the turning handle 17, and a splint 18 is installed at the end of the bearing seat 19, and a plurality of anti-slip rubber pads are provided on the outer wall of the splint 18 away from the bearing seat 19, and a plurality of guide rods 20 are installed on the outer wall of the splint 18 close to the bearing seat 19, and the guide rods 20 are located in the through holes of the fixing plate 16.

[0025] Take the slide 15 out of the device and place the sound-transmitting membrane in the fixed plate 16. By rotating the handle 17, the handle 17 drives the clamping plate 18 to move, so that the clamping plate 18 clamps the sound-transmitting membrane. During the clamping process, the sound-transmitting membrane is adjusted to prevent wrinkles until the sound-transmitting membrane is fixed in the groove of the fixed plate 16. By providing an anti-slip rubber pad on the outer wall of the clamping plate 18, the sound-transmitting membrane can be prevented from sliding, thereby preventing the sound-transmitting membrane from piling up and affecting the test results.

[0026] The device is further configured as follows: Figure 2 As shown, the detection device further includes sound-absorbing cotton 6, which is installed on the inner wall of the detection device body 1. By providing the sound-absorbing cotton 6, the interior of the monitoring device can be silenced to avoid echoes during the detection process that affect the detection results.

[0027] The device is further configured as follows: Figure 1-Figure 3 As shown, the detection component includes a pneumatic telescopic rod 12, which is installed at the front end of the slide rail 2 11, and a connecting plate 13 is installed at the output end of the pneumatic telescopic rod 12, and a speaker 14 is installed on the outer wall of the connecting plate 13 close to the slide rail 2 11. The detection component also includes a slide rail 1 7, which is installed at the rear end of the slide rail 2 11, and a screw is rotatably installed in the slide rail 1 7. A stepper motor 8 is installed on the outer wall of the detection device body 1 away from the slide rail 2 11, and the output end of the stepper motor 8 passes through the detection device body 1 and is connected to the screw in the slide rail 1 7. The detection component also includes a fixed seat 9, which is slidably installed on the screw of the slide rail 1 7, and an acoustic measuring instrument 10 is installed on the fixed seat 9.

[0028] The height of the connecting plate 13 is controlled by driving the pneumatic telescopic rod 12 to prevent affecting the movement of the clamping assembly 5. The sound is emitted by using the speaker 14, and the sound loss occurs when the sound passes through the sound-transmitting membrane. The sound is received by using the acoustic measuring instrument 10 to calculate the sound loss. The stepping motor 8 is used to drive the screw in the slide rail 7 to rotate, so that the acoustic measuring instrument 10 adjusts the distance between it and the sound-transmitting membrane, thereby measuring the sound loss at different distances multiple times.

[0029] The device is further configured as follows: Figure 3 、 Figure 4 As shown, the detection device also includes a laser rangefinder 22, which is mounted on the bottom side of the fixed base 9. A reflector 21 is mounted on the front of the fixed plate 16 at the front end of the slide 15. The combination of the laser rangefinder 22 and the reflector 21 facilitates the control of the distance between the acoustic measuring instrument 10 and the sound-transmitting membrane, allowing the inspector to accurately adjust the distance.

[0030] The device is further configured as follows: Figure 1 As shown, the detection device also includes a control panel 3, which is installed on the outer wall of the detection device body 1 away from the limit block on the slide rail 2 11, and an electrical box 2 is installed on the outer wall of the detection device body 1. A glass window is rotatably installed on the outer wall of the detection device body 1 close to the control panel 3, and a handle is provided on the glass window.

[0031] Working principle: The sound-transmitting membrane is fixed by the clamping assembly 5. The fixing method is: take the slide 15 out of the device, place the sound-transmitting membrane on the fixed plate 16, and rotate the handle 17 to drive the clamping plate 18 to move, so that the clamping plate 18 clamps the sound-transmitting membrane. During the clamping process, the sound-transmitting membrane is adjusted to prevent wrinkles from occurring until the sound-transmitting membrane is fixed in the groove of the fixed plate 16. Then the clamping assembly 5 is placed on the slide rail 2 11, and the pneumatic telescopic rod 12 is driven to lift the speaker 14 to the front of the sound-transmitting membrane. The screw is driven by the stepper motor 8 to rotate, and the position of the acoustic measuring instrument 10 is controlled. The sound is emitted through the speaker 14, and the acoustic measuring instrument 10 detects the intensity of the sound. During the detection process, the screw is driven by the stepper motor 8 to adjust the distance between the acoustic measuring instrument 10 and the sound-transmitting membrane, and the distance is detected by the laser rangefinder 22.

[0032] The above is only a preferred specific implementation method of the present invention. Parts that do not require creative work such as circuit control and signal control transmission may refer to the existing technology, but the protection scope of the present invention is not limited to this. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A waterproof sound-permeable membrane sound loss detection device, comprising a detection device body (1), wherein a detection component (4) and a clamping component (5) are arranged in the detection device body (1), a second slide rail (11) is installed inside the detection device body (1), and a limit block is arranged at one end of the second slide rail (11), characterized in that: The clamping assembly (5) includes a slide seat (15), the slide seat (15) is slidably mounted on the slide rail 2 (11), a plurality of fixed plates (16) are arranged above the slide seat (15), a groove is arranged at the rear end of the fixed plate (16) at the rear end of the slide seat (15), a threaded hole is arranged on the fixed plate (16) at the front end of the slide seat (15), and through holes are arranged at the upper and lower ends of the threaded hole, a turning handle (17) is rotatably mounted in the threaded hole of the fixing plate (16), a bearing seat (19) is mounted at the end of the turning handle (17), a clamping plate (18) is mounted at the end of the bearing seat (19), a plurality of anti-slip rubber pads are arranged on the outer wall of the clamping plate (18) away from the bearing seat (19), a plurality of guide rods (20) are mounted on the outer wall of the clamping plate (18) close to the bearing seat (19), and the guide rods (20) are located in the through holes of the fixing plate (16).

2. The waterproof sound-permeable membrane sound loss detection device according to claim 1, characterized in that: The detection device further comprises sound-absorbing cotton (6), and the sound-absorbing cotton (6) is mounted on the inner wall of the detection device body (1).

3. The waterproof sound-permeable membrane sound loss detection device according to claim 2, characterized in that: The detection component comprises a pneumatic telescopic rod (12), the pneumatic telescopic rod (12) being mounted on the front end of the second slide rail (11), a connecting plate (13) being mounted on the output end of the pneumatic telescopic rod (12), and a loudspeaker (14) being mounted on the outer wall of the connecting plate (13) close to the second slide rail (11).

4. The waterproof sound-permeable membrane sound loss detection device according to claim 3, characterized in that: The detection component also includes a slide rail (7), which is installed at the rear end of the slide rail (11). A screw is rotatably installed in the slide rail (7). A stepper motor (8) is installed on the outer wall of the detection device body (1) away from the slide rail (11). The output end of the stepper motor (8) passes through the detection device body (1) and is connected to the screw in the slide rail (7).

5. The waterproof sound-permeable membrane sound loss detection device according to claim 4, characterized in that: The detection assembly further comprises a fixed seat (9), the fixed seat (9) being slidably mounted on the screw of the slide rail (7), and an acoustic measuring instrument (10) being mounted on the fixed seat (9).

6. The waterproof sound-permeable membrane sound loss detection device according to claim 5, characterized in that: The detection device further comprises a laser rangefinder (22), which is mounted on the bottom of one side of the fixing seat (9), and a reflective plate (21) is mounted on the front side of the fixing plate (16) at the front end of the slide seat (15).

7. The waterproof sound-permeable membrane sound loss detection device according to claim 6, characterized in that: The detection device further comprises a control panel (3), the control panel (3) being mounted on the outer wall of the detection device body (1) away from the limit block on the second slide rail (11), an electrical box (2) being mounted on the outer wall of the detection device body (1), and a glass window being rotatably mounted on the outer wall of the detection device body (1) close to the control panel (3), and a handle being provided on the glass window.

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