Hearing aid testing device

Abstract

The utility model relates to a hearing aid testing device, which belongs to the technical field of testing devices and comprises a base, a support frame is arranged on the upper surface of the base, a testing mechanism is arranged on the upper surface of the support frame, and a placing mechanism is arranged on the upper surface of the base. According to the testing device of the hearing aid, when the interior of the hearing aid shell is inflated to a pressure value preset by the pressure sensor, a signal is sent to the control panel, the control panel closes at least two electromagnetic valves, and the pressure is kept for a period of time; the at least two pressure sensors monitor pressure values in the at least two hearing aid shells in real time and display the pressure values through the at least two first display screens, if leakage exists in the hearing aid shells, the pressure will be reduced, the pressure values are displayed in the corresponding first display screens, and the hearing aid shells are displayed in the corresponding first display screens. And when the pressure drop is smaller than a set threshold value, judging that the product leaks, and determining that the product is an unqualified product.

Description

Technical Field

[0001] The utility model relates to the technical field of testing devices, in particular to a testing device for hearing aids. Background Art

[0002] A hearing aid is a small amplifier that amplifies sounds that were originally inaudible, and then uses the residual hearing of the hearing-impaired person to send the sound to the auditory center of the brain, so that the sound can be felt, which brings great convenience to the hearing-impaired person. A hearing aid mainly consists of five parts: a microphone, an amplifier, earphones, a power supply, and a volume control. Hearing aids are divided into air-conduction hearing aids and bone-conduction hearing aids according to the conduction method, and are classified into cassette type, glasses type, hairpin type, behind-the-ear type, in-the-ear type, canal type, and deep-canal type hearing aids according to the usage method. During the production process of hearing aids, a sealing test of the shell connection is required, and at this time, a testing device for hearing aids is needed.

[0003] For example, Chinese Patent CN213956693U discloses a testing device for hearing aids. The key points of its technical solution are: including a bottom plate, two symmetric fixing plates are fixedly installed on the upper surface of the bottom plate, a top plate is fixedly installed above the fixing plates, a conveyor belt mechanism is arranged below the top plate, the conveyor belt mechanism is rotationally installed on the fixing plates through bearings, a dust suction mechanism is connected to the lower surface of the top plate, the dust suction mechanism is fixedly installed on the lower surface of the bottom plate, a support column is arranged on one side of the fixing plate, a mounting plate is fixedly installed on the support column, and a moving mechanism is fixedly installed on the mounting plate. The provided conveyor belt mechanism is convenient for transporting hearing aid shells and improves the transportation efficiency. The provided dust suction mechanism is beneficial to removing impurities on the surface of the hearing aid shells and ensuring the accuracy of the test. The provided moving mechanism is convenient for horizontally moving the hearing aid shells.

[0004] Traditional sealing tests of hearing aids mostly use airtight testing machines to test each hearing aid to be tested one by one. When there are many hearing aid samples, the overall testing time of the hearing aids is relatively long, which will affect the overall testing efficiency of the hearing aids. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a testing device for hearing aids, which has the advantages of being able to detect the sealing performance of multiple hearing aid shells and improving the testing efficiency, and solves the problem that traditional sealing tests of hearing aids mostly use airtight testing machines to test each hearing aid to be tested one by one. When there are many hearing aid samples, the overall testing time of the hearing aids is relatively long, which will affect the overall testing efficiency of the hearing aids.

[0006] To achieve the above object, the present utility model provides the following technical solution: A test device for a hearing aid, including a base, wherein a support frame is provided on the upper surface of the base, a test mechanism is provided on the upper surface of the support frame, and a placement mechanism is provided on the upper surface of the base;

[0007] The test mechanism includes an electric push rod, a compressed nitrogen gas tank, a connecting plate, two telescopic rods, not less than two fixing blocks, not less than two rubber sealing rings, not less than two pressure sensors and a connecting component. The electric push rod is assembled on the upper surface of the support frame, the outer side of the output shaft of the electric push rod slidably penetrates the support frame and extends to the inside, and the compressed nitrogen gas tank is assembled on the left side of the upper surface of the support frame.

[0008] By adopting this technical solution, the test mechanism can detect the sealing performance of multiple hearing aid shells, improving the test efficiency.

[0009] Furthermore, the connecting plate is assembled on the outer side of the output shaft of the electric push rod. The tops of the two telescopic rods are fixedly connected to the left and right sides of the top wall of the inner cavity of the support frame respectively, the bottom ends of the telescopic rods are fixedly connected to the upper surface of the connecting plate, not less than two fixing blocks are all assembled on the lower surface of the connecting plate, the rubber sealing ring is arranged on the lower surface of the fixing block, the pressure sensor is assembled on the lower surface of the fixing block, and the pressure sensor is located inside the rubber sealing ring.

[0010] By adopting this technical solution, the electric push rod can drive the connecting plate to move up and down.

[0011] Furthermore, the connecting component includes a delivery pipe, a fixed pipe, not less than two first connecting pipes, not less than two electromagnetic valves, not less than two second connecting pipes, not less than two first display screens and a control panel. One end of the delivery pipe is communicated with the right side of the compressed nitrogen gas tank, the bottom end of the delivery pipe is communicated with the upper surface of the fixed pipe, and not less than two first connecting pipes are all communicated with the lower surface of the fixed pipe.

[0012] By adopting this technical solution, the connecting component can deliver nitrogen gas and detect the sealing performance of the hearing aid shell.

[0013] Furthermore, not less than two electromagnetic valves are all communicated with the outer sides of the bottoms of not less than two first connecting pipes, the top ends of the second connecting pipes are communicated with the inside of the bottoms of the electromagnetic valves, not less than two first display screens are all assembled on the front surface of the connecting plate, the bottom ends of the second connecting pipes penetrate through the connecting plate and the fixing block and extend to the inside of the rubber sealing ring, and the control panel is assembled on the right side of the front surface of the support frame.

[0014] By adopting this technical solution, the corresponding first display screen can display in real time the pressure value inside the corresponding hearing aid shell.

[0015] Furthermore, no less than two of the electromagnetic valves are electrically connected to the control panel through wires, no less than two of the pressure sensors are electrically connected to the control panel through wires, and the electric push rod and no less than two of the first display screens are electrically connected to the control panel through wires.

[0016] By adopting this technical solution, no less than two electromagnetic valves can be opened by operating the control panel.

[0017] Furthermore, the placement mechanism includes a fixing frame, a placement plate, no less than two placement grooves, and no less than two limiting ring frames. The fixing frame is arranged on the upper surface of the base, the placement plate is fixed on the upper surface of the fixing frame by bolts, no less than two of the placement grooves are all opened on the upper surface of the placement plate, and the limiting ring frames are arranged inside the placement grooves.

[0018] By adopting this technical solution, the placement mechanism can limit the placement of no less than two hearing aid shells to facilitate the test of airtightness.

[0019] Furthermore, the limiting ring frame is located directly below the rubber sealing ring.

[0020] By adopting this technical solution, the hearing aid shell can be placed inside the limiting ring frame, and the gap between the hearing aid shell and the limiting ring frame is matched to fix the hearing aid shell.

[0021] Furthermore, no less than two of the placement grooves are evenly distributed on the upper surface of the placement plate.

[0022] By adopting this technical solution, the uniformity of the placement of no less than two hearing aid shells is improved.

[0023] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0024] The test device for hearing aids can place at least two hearing aid shells inside at least two limiting ring frames, with the test ports of the hearing aid shells facing upward. The gaps between the limiting ring frames and the hearing aid shells are matched. Then, operate the control panel to start the electric push rod, driving at least two rubber sealing rings to move downward. The lower surfaces of at least two rubber sealing rings are respectively fitted with the test ports of at least two hearing aid shells to form a sealed state. At this time, at least two electromagnetic valves 4 can be opened by operating the control panel to convey the compressed nitrogen inside the compressed nitrogen tank into the interiors of at least two hearing aid shells. Then, at least two pressure sensors respectively test the pressure values inside at least two hearing aid shells. When the interior of the hearing aid shell is inflated to the pressure value preset by the pressure sensor, a signal is sent to the control panel. The control panel closes at least two electromagnetic valves and maintains this pressure for a period of time to stabilize the system. At least two pressure sensors respectively monitor the pressure values inside at least two hearing aid shells in real time and display them through at least two first display screens. If there is a leak in the hearing aid shell, the pressure will drop, and the pressure value will be displayed on the corresponding first display screen. When the pressure drop is less than the set threshold, it is determined that the product has a leak and is a non-conforming product. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of the present utility model;

[0026] Figure 2 is a schematic diagram of the test mechanism of the present utility model;

[0027] Figure 3 is a three-dimensional structural schematic diagram of the connecting plate of the present utility model;

[0028] Figure 4 is a schematic diagram of the placement mechanism of the present utility model.

[0029] In the figure: 1, base; 2, support frame; 3, test mechanism; 31, electric push rod; 32, compressed nitrogen tank; 33, connecting plate; 34, telescopic rod; 35, fixing block; 36, rubber sealing ring; 37, pressure sensor; 381, conveying pipe; 382, fixing pipe; 383, first connecting pipe; 384, electromagnetic valve; 385, second connecting pipe; 386, first display screen; 387, control panel; 4, placement mechanism; 41, fixing frame; 42, placement plate; 43, placement groove; 44, limiting ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figure 1 , a test device for a hearing aid in this embodiment includes a base 1. A support frame 2 is provided on the upper surface of the base 1. A test mechanism 3 is provided on the upper surface of the support frame 2. The test mechanism 3 detects the airtightness of multiple hearing aid shells to improve the test efficiency. A placement mechanism 4 is provided on the upper surface of the base 1. The placement mechanism 4 is used for limiting and placing no less than two hearing aid shells.

[0032] Please refer to Figures 2 to 3 , in order to detect the airtightness of multiple hearing aid shells and improve the test efficiency, in this embodiment, the test mechanism 3 includes an electric push rod 31, a compressed nitrogen tank 32, a connecting plate 33, two telescopic rods 34, no less than two fixing blocks 35, no less than two rubber sealing rings 36, no less than two pressure sensors 37 and a connecting component. The electric push rod 31 is assembled on the upper surface of the support frame 2. The outer side of the output shaft of the electric push rod 31 slidably penetrates the support frame 2 and extends to the inside. The compressed nitrogen tank 32 is assembled on the left side of the upper surface of the support frame 2.

[0033] , in this embodiment, the connecting plate 33 is assembled on the outer side of the output shaft of the electric push rod 31. The tops of the two telescopic rods 34 are fixedly connected to the left and right sides of the top wall of the inner cavity of the support frame 2 respectively. The bottom ends of the telescopic rods 34 are fixedly connected to the upper surface of the connecting plate 33. No less than two fixing blocks 35 are all assembled on the lower surface of the connecting plate 33. The rubber sealing ring 36 is arranged on the lower surface of the fixing block 35. The pressure sensor 37 is assembled on the lower surface of the fixing block 35.

[0034] , in this embodiment, the pressure sensor 37 is located inside the rubber sealing ring 36. The connecting component includes a delivery pipe 381, a fixed pipe 382, no less than two first connecting pipes 383, no less than two electromagnetic valves 384, no less than two second connecting pipes 385, no less than two first display screens 386 and a control panel 387. One end of the delivery pipe 381 is communicated with the right side of the compressed nitrogen tank 32. The bottom end of the delivery pipe 381 is communicated with the upper surface of the fixed pipe 382. No less than two first connecting pipes 383 are all communicated with the lower surface of the fixed pipe 382.

[0035] In this embodiment, the operation control panel 387 starts the electric push rod 31. The conveying shaft of the electric push rod 31 drives the connecting plate 33 to move downward, and drives the rubber sealing rings 36 with a quantity of not less than two to move downward. The lower surfaces of the rubber sealing rings 36 with a quantity of not less than two are respectively in contact with the test ports of the hearing aid housings with a quantity of not less than two to form a sealed state. At this time, the electromagnetic valves 384 with a quantity of not less than two can be opened through the operation control panel 387.

[0036] In this embodiment, the electromagnetic valves 384 with a quantity of not less than two are all connected to the outside of the bottom ends of the first connecting pipes 383 with a quantity of not less than two. The top end of the second connecting pipe 385 is connected to the inside of the bottom end of the electromagnetic valve 384. The first display screens 386 with a quantity of not less than two are all assembled on the front surface of the connecting plate 33. The bottom end of the second connecting pipe 385 penetrates through the connecting plate 33 and the fixing block 35 and extends into the rubber sealing ring 36. The nitrogen gas compressed inside the compressed nitrogen gas tank 32 is respectively conveyed into the hearing aid housings with a quantity of not less than two through the conveying pipe 381, the fixing pipe 382, the first connecting pipes 383 with a quantity of not less than two, the electromagnetic valves 384 with a quantity of not less than two, and the second connecting pipes 385 with a quantity of not less than two. Then, the pressure sensors 37 with a quantity of not less than two respectively test the pressure values inside the hearing aid housings with a quantity of not less than two.

[0037] In this embodiment, the control panel 387 is assembled on the right side of the front surface of the support frame 2. The electromagnetic valves 384 with a quantity of not less than two are all electrically connected to the control panel 387 through wires. The pressure sensors 37 with a quantity of not less than two are all electrically connected to the control panel 387 through wires. The electric push rod 31 and the first display screens 386 with a quantity of not less than two are all electrically connected to the control panel 387 through wires.

[0038] It should be noted that when the air pressure inside the hearing aid housing reaches the pressure value preset by the pressure sensor 37, a signal is sent to the control panel 387. The control panel 387 closes the electromagnetic valves 384 with a quantity of not less than two and maintains this pressure for a period of time to stabilize the system. The pressure sensors 37 with a quantity of not less than two respectively monitor the pressure values inside the hearing aid housings with a quantity of not less than two in real time and display them through the first display screens 386 with a quantity of not less than two respectively. If there is a leak in the hearing aid housing, the pressure will drop, and the pressure value will be displayed on the corresponding first display screen 386. When the pressure drop is less than the set threshold, it is determined that the product has a leak and is a non-conforming product.

[0039] Please refer to Figure 4, in order to limit the placement of no less than two hearing aid casings, in this embodiment, the placement mechanism 4 includes a fixing frame 41, a placement plate 42, no less than two placement grooves 43 and no less than two limiting ring frames 44. The fixing frame 41 is arranged on the upper surface of the base 1, the placement plate 42 is fixed to the upper surface of the fixing frame 41 by bolts, no less than two placement grooves 43 are all formed in the upper surface of the placement plate 42, and the limiting ring frames 44 are arranged inside the placement grooves 43.

[0040] In this embodiment, the limiting ring frames 44 are located directly below the rubber sealing rings 36, and no less than two placement grooves 43 are evenly distributed on the upper surface of the placement plate 42.

[0041] It should be noted that no less than two hearing aid casings can be respectively placed inside no less than two limiting ring frames 44, and the test ports of the hearing aid casings face upward, and the gaps between the limiting ring frames 44 and the hearing aid casings are matched.

[0042] The working principle of the above embodiment is as follows:

[0043] At least two hearing aid housings can be respectively placed inside at least two limiting ring frames 44, with the test ports of the hearing aid housings facing upward. The limiting ring frames 44 are matched with the gaps of the hearing aid housings. Then, operate the control panel 387 to start the electric push rod 31. The conveying shaft of the electric push rod 31 drives the connecting plate 33 to move downward, and drives at least two rubber sealing rings 36 to move downward. The lower surfaces of at least two rubber sealing rings 36 are respectively in contact with the test ports of at least two hearing aid housings to form a sealed state. At this time, at least two solenoid valves 384 can be opened by operating the control panel 387. The compressed nitrogen in the compressed nitrogen tank 32 is respectively conveyed into the interiors of at least two hearing aid housings through the conveying pipe 381, the fixed pipe 382, at least two first connecting pipes 383, at least two solenoid valves 384, and at least two second connecting pipes 385. Then, at least two pressure sensors 37 respectively test the pressure values inside at least two hearing aid housings. When the interior of the hearing aid housing is inflated to the pressure value preset by the pressure sensor 37, a signal is sent to the control panel 387. The control panel 387 closes at least two solenoid valves 384 and maintains this pressure for a period of time to allow the system to stabilize. At least two pressure sensors 37 respectively monitor the pressure values inside at least two hearing aid housings in real time and are respectively displayed through at least two first display screens 386. If there is a leak in the hearing aid housing, the pressure will drop, and the pressure value will be displayed on the corresponding first display screen 386. When the pressure drop is less than the set threshold, it is determined that the product has a leak and is a non-conforming product.

Claims

1. A hearing aid testing device, comprising a base (1), characterized in that: A support frame (2) is provided on the upper surface of the base (1), a testing mechanism (3) is provided on the upper surface of the support frame (2), and a placement mechanism (4) is provided on the upper surface of the base (1); The testing mechanism (3) comprises an electric push rod (31), a compressed nitrogen tank (32), a connecting plate (33), two telescopic rods (34), at least two fixed blocks (35), at least two rubber sealing rings (36), at least two pressure sensors (37) and a connecting assembly, wherein the electric push rod (31) is mounted on the upper surface of the support frame (2), the outer side of the output shaft of the electric push rod (31) slides through the support frame (2) and extends into the interior, and the compressed nitrogen tank (32) is mounted on the left side of the upper surface of the support frame (2).

2. A hearing aid testing device according to claim 1, characterized in that: The connecting plate (33) is mounted on the outside of the output shaft of the electric push rod (31); the top ends of the two telescopic rods (34) are fixedly connected to the left and right sides of the top wall of the inner cavity of the support frame (2); the bottom ends of the telescopic rods (34) are fixedly connected to the upper surface of the connecting plate (33); the fixing blocks (35) of at least two in number are mounted on the lower surface of the connecting plate (33); the rubber sealing ring (36) is arranged on the lower surface of the fixing block (35); the pressure sensor (37) is mounted on the lower surface of the fixing block (35); and the pressure sensor (37) is located inside the rubber sealing ring (36).

3. The hearing aid testing device according to claim 1, characterized in that: The connection assembly comprises a delivery pipe (381), a fixed pipe (382), at least two first connecting pipes (383), at least two electromagnetic valves (384), at least two second connecting pipes (385), at least two first display screens (386) and a control panel (387), one end of the delivery pipe (381) being connected to the right side of a compressed nitrogen tank (32), the bottom end of the delivery pipe (381) being connected to the upper surface of the fixed pipe (382), and the at least two first connecting pipes (383) being connected to the lower surface of the fixed pipe (382).

4. A hearing aid testing device according to claim 3, characterized in that: The electromagnetic valves (384), which are not less than two in number, are all connected to the outside of the bottom ends of the first connecting tubes (383), which are not less than two in number; the top ends of the second connecting tubes (385) are connected to the inside of the bottom ends of the electromagnetic valves (384); the first display screens (386), which are not less than two in number, are all mounted on the front side of the connecting plate (33); the bottom ends of the second connecting tubes (385) penetrate the connecting plate (33) and the fixing block (35) and extend to the inside of the rubber sealing ring (36); and the control panel (387) is mounted on the right side of the front side of the support frame (2).

5. The hearing aid testing device according to claim 3, characterized in that: The electromagnetic valves (384), numbering not less than two, are electrically connected to the control panel (387) via wires; the pressure sensors (37), numbering not less than two, are electrically connected to the control panel (387) via wires; the electric push rods (31) and the first display screens (386), numbering not less than two, are electrically connected to the control panel (387) via wires.

6. The hearing aid testing device according to claim 1, characterized in that: The placement mechanism (4) comprises a fixing frame (41), a placement plate (42), not less than two placement grooves (43) and not less than two limit ring frames (44), wherein the fixing frame (41) is arranged on the upper surface of the base (1), the placement plate (42) is fixed to the upper surface of the fixing frame (41) by bolts, not less than two placement grooves (43) are both opened on the upper surface of the placement plate (42), and the limit ring frame (44) is arranged inside the placement grooves (43).

7. A hearing aid testing device according to claim 6, characterized in that: The limiting ring frame (44) is located directly below the rubber sealing ring (36).

8. The hearing aid testing device according to claim 6, characterized in that: The placement grooves (43), numbering not less than two, are evenly distributed on the upper surface of the placement plate (42).

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