Performance detection device for waterproof sound-transmitting membrane

Abstract

The utility model discloses a waterproof sound transmission membrane performance detection device which comprises a spraying assembly, the spraying assembly comprises a workbench, a fixing frame is arranged on the outer wall of the top of the workbench, an opening is formed in the center of the fixing frame, a water retaining edge is arranged on the top of the fixing frame, and a supporting frame is arranged on the outer wall of the top of the workbench. A liquid storage tank is arranged on the outer wall of the top of the supporting frame, an adding opening is connected to the top of the liquid storage tank, a conveying pump is fixedly arranged on the outer wall of one side of the supporting frame through bolts, the liquid storage tank is connected with the conveying pump, and a spraying frame is connected to the bottom of the conveying pump and matched with the fixing frame in position. A sound transmission detection assembly used for detecting sound transmission performance is arranged on one side of the workbench, a fixing assembly used for fixing a waterproof sound transmission film is arranged on one side of the water retaining edge, the sound transmission detection assembly comprises a test box, a partition plate is arranged on the inner wall of the test box, an opening is formed in the center of the partition plate, and a loudspeaker is arranged on the outer wall of the top of the workbench. And the position of the loudspeaker is matched with that of the test box.

Description

Technical Field

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

[0002] Waterproof and sound-permeable membranes are high-performance films that are both waterproof and sound-permeable. They effectively prevent water ingress while ensuring clear sound transmission. They are widely used in the speakers, receivers, and microphones of consumer electronics such as mobile phones, headphones, and microphones, as well as in communications equipment requiring waterproofness and sound transmission for underwater and outdoor use. After processing, waterproof and sound-permeable membranes require performance testing.

[0003] After searching, Chinese patent application number 202223015869.2 discloses a dual-audio sound test device, comprising a lower shielding box, an upper shielding box, a test module, a lifting drive module, a microphone, a frequency response speaker, a sealed speaker, and a scanning module. The lifting drive module is connected between the upper shielding box and the lower shielding box. The test module includes a pressing block and a test platform. The pressing block is connected to the upper shielding box, the microphone is connected to the pressing block, and the test platform is set on the lower shielding box. The dual-audio sound test device in the above patent has the following shortcomings: the device is not equipped with a spray device to test the waterproofness of the waterproof and sound-permeable membrane during use, and its waterproof performance cannot be detected, so it is impossible to know whether its waterproofness is defective, which will have a certain impact on the quality of the product. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a waterproof and sound-permeable membrane performance detection device.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A device for testing the performance of a waterproof and sound-permeable membrane includes a spray assembly, which includes a workbench, a fixing frame provided on the top outer wall of the workbench, an opening provided in the center of the fixing frame, a water retaining edge provided on the top outer wall of the workbench, a support frame provided on the top outer wall of the support frame, a liquid storage tank provided on the top outer wall of the support frame, an addition port connected to the top of the liquid storage tank, a delivery pump fixed by bolts on the outer wall of one side of the support frame, the liquid storage tank is connected to the delivery pump, and a spray frame is connected to the bottom of the delivery pump, the position of the spray frame is adapted to the fixing frame, a sound transmission detection assembly for detecting sound transmission performance is provided on one side of the workbench, and a fixing assembly for fixing the waterproof and sound-permeable membrane is provided on one side of the water retaining edge.

[0007] As a further solution of the present invention: the sound transmission detection component includes a test box, the inner wall of the test box is provided with a partition, the center of the partition is provided with an opening, a speaker is provided on the outer wall of the top of the workbench, the position of the speaker is adapted to the test box, and two groups of sound level meters are provided on one side of the test box, and the two groups of sound level meters are respectively installed above and below the partition.

[0008] As a further solution of the present invention: the fixing assembly includes a mounting frame, and the mounting frame is provided with multiple groups, which are arranged on one side and installed on the inner wall of the water retaining edge. A hydraulic telescopic rod is fixed to the outer wall of the top of the mounting frame by bolts, and the output end of the bottom of the hydraulic telescopic rod can slide through the mounting frame, and a pressure frame is installed at the bottom end of the hydraulic telescopic rod.

[0009] As a further solution of the present invention: the outer wall of the bottom of the workbench is fixed with support legs by bolts, there are two groups of support legs, and foot pads are provided at the bottom of the support legs.

[0010] As a further solution of the present invention: an auxiliary frame is installed on the top of the addition port, and the auxiliary frame is funnel-shaped, and the opening gradually expands upward.

[0011] As a further solution of the present invention: a gasket is provided at the bottom of the foot pad, the gasket is made of rubber material, and the bottom of the gasket is provided with anti-slip texture.

[0012] As a further solution of the present invention: a control panel is fixed on the outer wall of one side of the support frame by bolts, and the control panel is covered with a protective film.

[0013] As a further solution of the present invention: a transparent observation window is provided on one side of the liquid storage tank, the observation window is affixed with an explosion-proof film, and the explosion-proof film is provided with scale lines.

[0014] The beneficial effects of the utility model are:

[0015] 1. The waterproof sound-permeable membrane can be placed on the fixing frame. After completion, the water in the liquid storage tank is transported by the delivery pump, and the water flow is transported to the spraying frame to spray the waterproof sound-permeable membrane on the fixing frame. During the spraying, the bottom of the waterproof sound-permeable membrane is observed through the opening of the fixing frame to check whether there are water stains, so as to detect whether its waterproof performance meets the standard. At the same time, the water retaining edge can play the role of collecting water to form a certain amount of water on the waterproof sound-permeable membrane for immersion testing, making the test more comprehensive and obtaining more realistic results, which can avoid the problem of being unable to test the waterproofness and know whether the waterproofness is defective.

[0016] 2. After placing the waterproof sound-permeable membrane on the fixing frame, the hydraulic telescopic rod can be used to control the pressing frame to fall and contact the waterproof sound-permeable membrane. By pressing the edge of the waterproof sound-permeable membrane and aligning it for fixation, displacement during the waterproof test can be avoided to affect the accuracy of the test.

[0017] 3. The auxiliary rack that gradually expands upward through the opening can increase the contact area when water is added, thereby avoiding leakage when adding water. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram from the main perspective of a waterproof and sound-permeable membrane performance testing device proposed in the present invention;

[0019] Figure 2 This is a structural diagram of the support part of a waterproof and sound-permeable membrane performance testing device proposed in the utility model;

[0020] Figure 3 This is a schematic structural diagram of the sound transmission test portion of a waterproof sound transmission membrane performance testing device proposed in the present invention;

[0021] Figure 4 This is a structural schematic diagram of the fixed part of a waterproof and sound-permeable membrane performance detection device proposed in the utility model.

[0022] In the figure: 1-workbench, 2-control panel, 3-gasket, 4-foot pad, 5-support leg, 6-test box, 7-support frame, 8-observation window, 9-addition port, 10-auxiliary frame, 11-liquid storage tank, 12-delivery pump, 13-spray frame, 14-hydraulic telescopic rod, 15-mounting frame, 16-pressure frame, 17-fixing frame, 18-water retaining edge, 19-sound level meter, 20-speaker, 21-partition. DETAILED DESCRIPTION

[0023] The technical solution of the present utility model will be further described in detail below in conjunction with specific implementation methods.

[0024] 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.

[0025] Example 1

[0026] A waterproof and sound-permeable membrane performance testing device, such as Figure 1-4As shown, it includes a shower assembly, which includes a workbench 1, a fixing frame 17 is fixed to the top outer wall of the workbench 1 by bolts, an opening is provided in the center of the fixing frame 17, a water retaining edge 18 is provided on the top outer wall of the workbench 1, a support frame 7 is fixed to the top outer wall of the support frame 7 by bolts, a liquid storage tank 11 is fixed to the top outer wall of the liquid storage tank 11 by bolts, an addition port 9 is connected to the top of the liquid storage tank 11, a delivery pump 12 is fixed to the outer wall of one side of the support frame 7 by bolts, the liquid storage tank 11 is connected to the delivery pump 12, and a shower frame 13 is connected to the bottom of the delivery pump 12, the position of the shower frame 13 is adapted to the fixing frame 17, a sound transmission detection component for detecting sound transmission performance is provided on one side of the workbench 1, and a fixing component for fixing the waterproof and sound-permeable membrane is provided on one side of the water retaining edge 18;

[0027] During use, water can be added to the liquid storage tank 11 through the adding port 9, the waterproof sound-permeable membrane to be tested is placed on the fixing frame 17, the water in the liquid storage tank 11 is transported by the delivery pump 12, and the water flow is transported to the spraying frame 13 to spray the waterproof sound-permeable membrane on the fixing frame 17. During the spraying, the bottom of the waterproof sound-permeable membrane is observed through the opening of the fixing frame 17 to check whether there are water stains, so as to detect whether its waterproof performance meets the standard. The water retaining edge 18 can collect the water flow during the spraying, so that a certain amount of water is formed on the waterproof sound-permeable membrane for immersion testing, thereby making the test more comprehensive;

[0028] The sound transmission detection assembly includes a test box 6, the inner wall of the test box 6 is provided with a partition 21, the center of the partition 21 is provided with an opening, and a speaker 20 is fixed to the top outer wall of the workbench 1 by bolts. The position of the speaker 20 is adapted to the test box 6. Two sets of sound level meters 19 are provided on one side of the test box 6, and the two sets of sound level meters 19 are respectively installed above and below the partition 21;

[0029] During use, the waterproof sound-permeable membrane to be tested is placed on the partition 21. After placement, a heavy object is placed on its edge to fix it. After fixation, the speaker 20 is started, and sound is emitted through the speaker 20. The two sets of sound level meters 19 below and above the partition 21 can detect the decibels before and after passing through the waterproof sound-permeable membrane, thereby checking whether there is any attenuation in the decibels to test the sound transmission performance of the waterproof sound-permeable membrane.

[0030] The fixing assembly includes a mounting frame 15, which is provided with multiple groups and is respectively arranged on one side and installed on the inner wall of the water retaining edge 18. A hydraulic telescopic rod 14 is fixed to the outer wall of the top of the mounting frame 15 by bolts. The output end of the bottom of the hydraulic telescopic rod 14 can slide through the mounting frame 15, and a pressure frame 16 is installed at the bottom end of the hydraulic telescopic rod 14.

[0031] During use, after placing the waterproof sound-permeable membrane on the fixing frame 17, the hydraulic telescopic rod 14 can be used to control the pressing frame 16 to fall and contact the waterproof sound-permeable membrane. By pressing the edge of the waterproof sound-permeable membrane and aligning it for fixation, it can avoid displacement during the waterproof test that affects the accuracy of the test.

[0032] To support the device, such as Figure 2 As shown, the outer wall of the bottom of the workbench 1 is fixed with support legs 5 by bolts, and there are two groups of support legs 5. The bottom of the support legs 5 is provided with foot pads 4;

[0033] When in use, the device can be supported by the cooperation of the foot pad 4 and the support leg 5, thereby maintaining the stability of the device;

[0034] In order to add water conveniently, Figure 1 As shown, an auxiliary frame 10 is installed on the top of the adding port 9. The auxiliary frame 10 is funnel-shaped, and the opening gradually expands upwards;

[0035] When in use, the auxiliary frame 10, which gradually expands upward through the opening, can increase the contact area when water is added, thereby avoiding leakage when adding water;

[0036] To prevent the device from sliding, Figure 2 As shown, a gasket 3 is provided at the bottom of the foot pad 4. The gasket 3 is made of rubber material, and the bottom of the gasket 3 is provided with anti-slip textures;

[0037] When in use, the rubber gasket 3 and the anti-skid pattern on its bottom can increase the friction when in contact with the ground, thereby increasing the anti-skid property and preventing the device from sliding.

[0038] To facilitate control, Figure 1 As shown, a control panel 2 is fixed to the outer wall of one side of the support frame 7 by bolts, and the control panel 2 is covered with a protective film;

[0039] When in use, the control panel 2 is connected to various components of the device through lines. The device can be conveniently controlled and adjusted through the control panel 2, and the protective film can prevent the control panel 2 from being scratched.

[0040] Example 2

[0041] To observe the remaining water level, refer to Figure 1 A device for testing the performance of a waterproof and sound-permeable membrane is provided. Compared with Example 1, this embodiment has the following improvements: a transparent observation window 8 is provided on one side of the liquid storage tank 11, and an explosion-proof membrane is affixed to the observation window 8, and the explosion-proof membrane is provided with scale lines;

[0042] During use, the amount of water remaining in the liquid storage tank 11 can be observed through the transparent observation window 8, and insufficient water can be found and replenished in time.

[0043] 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 and sound-permeable membrane performance testing device, comprising a spray assembly, characterized in that: The spray assembly comprises a workbench (1), a fixing frame (17) is provided on the top outer wall of the workbench (1), an opening is provided in the center of the fixing frame (17), a water retaining edge (18) is provided on the top outer wall of the workbench (1), a support frame (7) is provided on the top outer wall of the support frame (7), a liquid storage tank (11) is provided on the top outer wall of the support frame (7), a feeding port (9) is connected to the top of the liquid storage tank (11), a delivery pump (12) is fixed on the outer wall of one side of the support frame (7) by bolts, the liquid storage tank (11) is connected to the delivery pump (12), a spray frame (13) is connected to the bottom of the delivery pump (12), the position of the spray frame (13) is adapted to the fixing frame (17), a sound transmission detection assembly for detecting sound transmission performance is provided on one side of the workbench (1), and a fixing assembly for fixing a waterproof sound-permeable membrane is provided on one side of the water retaining edge (18).

2. A waterproof sound-permeable membrane performance detection device according to claim 1, characterized in that: The sound transmission detection assembly comprises a test box (6), the inner wall of the test box (6) is provided with a partition (21), the center of the partition (21) is provided with an opening, a loudspeaker (20) is provided on the outer wall of the top of the workbench (1), the position of the loudspeaker (20) is adapted to the test box (6), and two groups of sound level meters (19) are provided on one side of the test box (6), and the two groups of sound level meters (19) are respectively installed above and below the partition (21).

3. The waterproof sound-permeable membrane performance detection device according to claim 1, characterized in that: The fixing assembly comprises a mounting frame (15), wherein the mounting frame (15) is provided with a plurality of groups, each of which is arranged on one side and mounted on the inner wall of the water retaining edge (18); a hydraulic telescopic rod (14) is fixed to the outer wall of the top of the mounting frame (15) by bolts; the output end of the bottom of the hydraulic telescopic rod (14) can slide through the mounting frame (15); and a pressing frame (16) is installed at the bottom end of the hydraulic telescopic rod (14).

4. The waterproof sound-permeable membrane performance detection device according to claim 1, characterized in that: The outer wall of the bottom of the workbench (1) is fixed with support legs (5) by bolts, and two groups of support legs (5) are provided. Foot pads (4) are provided at the bottom of the support legs (5).

5. The waterproof sound-permeable membrane performance detection device according to claim 1, characterized in that: An auxiliary frame (10) is installed at the top of the addition port (9), and the auxiliary frame (10) is funnel-shaped, with the opening gradually expanding upwards.

6. The waterproof sound-permeable membrane performance detection device according to claim 4, characterized in that: A gasket (3) is provided at the bottom of the foot pad (4); the gasket (3) is made of rubber material; and an anti-slip pattern is provided at the bottom of the gasket (3).

7. The waterproof sound-permeable membrane performance detection device according to claim 1, characterized in that: A control panel (2) is fixedly provided on the outer wall of one side of the support frame (7) by means of bolts, and the control panel (2) is affixed with a protective film.

8. The waterproof sound-permeable membrane performance detection device according to claim 1, characterized in that: A transparent observation window (8) is provided on one side of the liquid storage tank (11), and an explosion-proof film is attached to the observation window (8), and the explosion-proof film is provided with scale lines.

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