CN112887889A - Bone conduction type hearing aid testing device - Google Patents
Bone conduction type hearing aid testing device Download PDFInfo
- Publication number
- CN112887889A CN112887889A CN202110332226.1A CN202110332226A CN112887889A CN 112887889 A CN112887889 A CN 112887889A CN 202110332226 A CN202110332226 A CN 202110332226A CN 112887889 A CN112887889 A CN 112887889A
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- China
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- bone conduction
- hearing aid
- fixed pulley
- bone
- testing device
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/30—Monitoring or testing of hearing aids, e.g. functioning, settings, battery power
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
- H04R2460/13—Hearing devices using bone conduction transducers
Abstract
The invention discloses a bone conduction type hearing aid testing device, which comprises a base, a force coupler, a force application module and a fixing module, wherein the force coupler is provided with a probe, the force application module comprises a support frame, an upper fixed pulley, a lower fixed pulley, a linear bearing, a pressure lever, a pull wire and a weight, the linear bearing is horizontally arranged at the lower part of the support frame, the pressure lever penetrates through the linear bearing and is aligned with the probe, the pressure lever is provided with a groove, the lower edge of the lower fixed pulley is positioned in the groove, one end of the pull wire is connected with the weight, the other end of the pull wire is horizontally connected with the pressure lever, and the fixing module comprises a cylinder and a fixing frame. This bone conduction formula audiphone testing arrangement both can adjust the angle of bone oscillator for the bone oscillator laminates with the probe of force coupler better mutually, can also give a horizontally, last and stable static force of bone oscillator through the depression bar, and whole operation process is simple swift, has made things convenient for the sound performance index test of bone conduction formula audiphone.
Description
Technical Field
The present invention relates to a testing device, and more particularly, to a testing device for a bone conduction hearing aid.
Background
The bone conduction hearing aid works on the principle that a picked sound signal is amplified and converted into mechanical motion, and the mechanical motion is conducted to the inner ear through a mastoid part or a skull, so that the brain generates hearing. The sound performance index of the bone conduction hearing aid needs to be tested by a special testing instrument for judging whether the sound performance index meets the requirement.
At present, a whole set of test equipment for a bone conduction hearing aid consists of a closed sound insulation box (containing a sound production loudspeaker), a force coupler, a data processor and a display screen, wherein the bone conduction hearing aid is required to be arranged in the sound insulation box during testing, the sound production loudspeaker in the sound insulation box emits sound with certain frequency to be used as sound input of the bone conduction hearing aid, and the bone conduction hearing aid acquires sound signals through a microphone and then converts the sound signals into mechanical motion through a bone vibrator after amplification. The bone oscillator compresses tightly the laminating with the probe of force coupler, and the mechanical vibration of bone oscillator is received to the force coupler, converts vibration signal into voltage signal transmission for data processor again, and data processor carries out data analysis, shows the sound performance index of bone conduction hearing aid through the display screen display.
In the testing process, the coupling between the bone oscillator of the bone conduction hearing aid and the probe of the force coupler is very important, and the coupling directly influences the output effect and accuracy of the testing index, so that an auxiliary device is needed in order to enable the bone oscillator of the bone conduction hearing aid and the probe of the force coupler to achieve a better coupling state. According to the general test requirements of the bone conduction hearing aid, a certain static force needs to be applied to a probe of a force coupler by a bone oscillator, the force application in different sizes needs to be realized by manually adjusting the position of a balancing weight by a method of pressing rod counterweight, and the accuracy cannot be ensured due to the existence of manual operation errors; and the spring is very sensitive to displacement by adopting a method of adjusting the spring, and when the bone oscillator vibrates or equipment assembly has errors, the position of the stress surface of the bone oscillator on the probe is easy to change, so that the elastic force of the spring is changed, and accurate and constant static force cannot be obtained. In addition, the above 2 conventional methods cannot directly reflect the magnitude of the applied static force, the spring method needs to set a position in advance according to the magnitude of the force, and the operation is very troublesome, while the counterweight pressing rod method needs to measure the magnitude of the force by means of a spring scale and can only apply the static force in the vertical direction. If the bone conduction hearing aid cannot be vertically placed due to the limited space of the sound insulation box and the limited size of the bone conduction hearing aid, namely, the axes of the left and right bone oscillators are in the vertical direction. The ring diameter of the back pillow of the bone conduction hearing aid is not compressed to be in an abnormal state, so that the axes of the left and right bone vibrators are placed along the vertical direction, and the risk of damaging products is possibly caused by the treatment. Therefore, during testing, the bone conduction hearing aid can be placed only horizontally, namely, the axes of the left and right bone oscillators are in the horizontal direction. In the conventional method, no other method is found except that a spring method is adopted to apply static force in the horizontal direction.
In addition, sometimes special testing requirements need to be realized, for example, a large number of sound performance indexes of the bone conduction hearing aid need to be tested under different static force, and the design parameters of the head clamping force of the bone conduction hearing aid are researched, so that the special requirements are difficult to realize by the conventional method at present.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a bone conduction hearing aid testing apparatus, which can press and fit a bone vibrator and a probe of a force coupler.
To achieve the above object, the present invention provides a bone conduction hearing aid testing device, which comprises a base, a force coupler, a force application module, and a fixing module, wherein the force coupler is disposed on the base and provided with a probe at a side facing the force application module, the force application module comprises a supporting frame, an upper fixed pulley, a lower fixed pulley, a linear bearing, a pressing rod, a pulling wire, and a weight, the supporting frame is disposed on the base, the upper fixed pulley is disposed on an upper portion of the supporting frame, the lower fixed pulley is disposed on a lower portion of the supporting frame, the linear bearing is horizontally disposed on a lower portion of the supporting frame, the pressing rod passes through the linear bearing and is aligned with the probe, the pressing rod is provided with a groove, a lower edge of the lower fixed pulley is disposed in the groove, an upper end of the pulling wire is connected with the weight by passing through the upper fixed pulley, a lower end of the pulling wire is connected with the pressing rod by passing, this fixed module includes drum and mount, and this drum is settled and is equipped with locking screw on this base, and this mount includes montant and first horizontal pole, and this montant is settled in this drum, and this first horizontal pole is located the upper end of this montant, and one end is equipped with rotatable chuck.
The fixing frame further comprises a second cross rod, wherein the two ends of the second cross rod are provided with clamping grooves, and the second cross rod is located at the upper end of the vertical rod and intersected with the first cross rod. Furthermore, the chuck and the clamping groove are of a rotatable structure.
The force application module also comprises a positioning piece which is movably sleeved on one side of the pressure rod close to the probe and is provided with a square groove.
The base is provided with a chute, and the cylinder can be movably and rotatably arranged in the chute.
A gasket is arranged at one end of the pressure lever close to the probe.
The bone conduction hearing aid testing device can adjust the position of the bone vibrator to enable the bone vibrator to be well attached to a probe of the force coupler, can provide a continuous and stable static force for the bone vibrator through the pressure lever, is simple and quick in the whole operation process, facilitates the sound performance index test of the bone conduction hearing aid, and has low failure rate and no electromagnetic interference except the force coupler because other parts are mechanical structures.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Drawings
Fig. 1 is a schematic view of a bone conduction hearing aid testing device according to the present invention.
Fig. 2 is a side cross-sectional view of a bone conduction hearing aid testing device (without a mount) of the present invention.
Fig. 3 is a schematic view of a positioning member.
Fig. 4 is a schematic diagram of the bone conduction hearing aid testing device of the present invention installed with a bone conduction hearing aid.
Detailed Description
The invention is further elucidated with reference to the drawing.
As shown in fig. 1 and 2, the present invention provides a bone conduction hearing aid testing apparatus, which includes a base 1, a force coupler 2, a force application module 3, and a fixing module 4, wherein the force coupler 2, the force application module 3, and the fixing module 4 are all disposed on the base 1.
The force coupler 2 is provided with a probe 21 on the side facing the force application module 3.
The force application module 3 comprises a support frame 31, an upper fixed pulley 32, a lower fixed pulley 33, a linear bearing 34, a pressing rod 35, a pulling wire 36 and a weight 37, wherein the support frame 31 is arranged on the base 1, the upper fixed pulley 32 is arranged on the upper part of the support frame 31, the lower fixed pulley 33 is arranged on the lower part of the support frame 31, the linear bearing 34 is horizontally arranged on the lower part of the support frame 31, the pressing rod 35 passes through the linear bearing 34 and is aligned with the probe 21, the pressing rod 35 is provided with a groove, the lower edge of the lower fixed pulley 33 is positioned in the groove, the upper end of the pulling wire 36 is connected with the weight 37 by passing through the upper fixed pulley 32, the lower end of the pulling wire is connected with the pressing rod 35 by passing through the lower fixed pulley 33, namely, the portion of the pulling wire 36 which is positioned in the groove and passes through the lower fixed pulley 33 is in a horizontal state, so that when the pulling wire 36 pulls the pressing rod 35 to move horizontally along, the tension received by the strut 35 does not change with movement and can always maintain a value. It should be noted that there may be more than one weight 37 to meet different requirements.
This fixed module 4 includes drum 41 and mount 42, wherein, this drum 41 settles on this base 1, be equipped with locking screw 411, this mount 42 includes montant 421, first horizontal pole 422, and second horizontal pole 423, this montant 421 settles in this drum 41, through this locking screw 411, the height of this montant 421 can be adjusted, this first horizontal pole 422 intersects with this second horizontal pole 423 and is located the upper end of this montant 421, this first horizontal pole 422 one end is equipped with rotatable chuck 4221, this second horizontal pole 423 both ends all are equipped with rotatable draw-in groove, cooperation through this chuck 4221 and this draw-in groove 423, simulate the state of really wearing, make the test result more tend to reality, simultaneously, be convenient for the research to bone conduction formula hearing aid head clamping force key parameter. It should be noted that, for convenience of use, the vertical bar 421, the first cross bar 422 and the second cross bar 423 can be designed to be retractable structures.
The base 1 is provided with a chute 11, and the cylinder 41 is movably and rotatably disposed in the chute 11.
The force application module 3 further comprises a positioning member 38, the positioning member 38 is movably sleeved on one side of the pressing rod 35 close to the probe 21, as shown in fig. 3, the positioning member 38 is provided with a square groove 381, and the square groove 381 can position the bone oscillator so as to facilitate fixing of the bone conduction hearing aid.
The compression bar 35 is provided with a gasket at one end close to the probe 21 to buffer the pressure of the compression bar 35 on the bone vibrator.
Before testing, firstly, the collet 4221 of the first cross bar 422 is used for clamping the middle of the back pillow of the bone conduction hearing aid, two ends of the bone conduction hearing aid are placed in the clamping grooves of the second cross bar 423, secondly, the bone vibrator is attached to the probe 21 by adjusting the position or the rotation angle of the cylinder 41 and the height of the vertical bar 421, if necessary, the collet 4221 can be further adjusted to enable the bone vibrator to be attached to the probe 21, then, the bone vibrator is positioned through the square groove 381 of the positioning piece 38, the cylinder 41 and the vertical bar 421 are fixed, the bone vibrator is fixed, the positioning piece 38 is moved away from the bone vibrator to avoid resonance during testing, finally, the proper weight 37 is selected, the weight 37 is connected with the pull wire 36, the pull wire 36 is subjected to the gravity of the weight 37, the vertical gravity of the weight 37 passes through the upper fixed pulley 32 and the lower fixed pulley 33, and the vertical gravity of the weight 37 becomes the tensile force of the compression bar 35, so that the compression bar 35 generates a horizontal, continuous and stable pressure (i.e. static force) on the bone vibrator, see fig. 4.
It is worth reminding that, because the friction force between the pulley and the linear bearing is generally small, the deviation between the gravity of the weight 37 and the static force of the compression bar 35 to the bone vibrator is small, and most of the test precision requirements can be met. If the requirement on the test precision is high, the sliding groove of the pulley and the surface of the compression bar 35 can be subjected to smoothing treatment, such as surface polishing and PTFE coating treatment; the weight of the weight 37 can be increased to compensate the loss of the friction force, so that the static force of the compression bar 35 on the bone vibrator is more accurate.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (6)
1. A bone conduction hearing aid testing device, characterized in that: the force applying module comprises a support frame, an upper fixed pulley, a lower fixed pulley, a linear bearing, a pressure rod, a pull wire and a weight, wherein the support frame is arranged on the base, the upper fixed pulley is arranged on the upper part of the support frame, the lower fixed pulley is arranged on the lower part of the support frame, the linear bearing is horizontally arranged on the lower part of the support frame, the pressure rod penetrates through the linear bearing and is aligned with the probe, the pressure rod is provided with a groove, the lower edge of the lower fixed pulley is positioned in the groove, the upper end of the pull wire is connected with the weight by bypassing the upper fixed pulley, the lower end of the pull wire is connected with the pressure rod by bypassing the lower fixed pulley, the fixing module comprises a cylinder and a fixing frame, the cylinder is arranged on the base and is provided with a locking screw, the fixing frame comprises a vertical rod and a first cross rod, the vertical rod is arranged in the cylinder, the first cross rod is located at the upper end of the vertical rod, and one end of the first cross rod is provided with a rotatable chuck.
2. The bone conduction hearing aid testing device of claim 1, wherein: the fixing frame further comprises a second cross rod, wherein the two ends of the second cross rod are provided with clamping grooves, and the second cross rod is located at the upper end of the vertical rod and intersected with the first cross rod.
3. The bone conduction hearing aid testing device of claim 2, wherein: the chuck and the clamping groove are of rotatable structures.
4. The bone conduction hearing aid testing device of claim 1, wherein: the force application module also comprises a positioning piece which is movably sleeved on one side of the pressure rod close to the probe and is provided with a square groove.
5. The bone conduction hearing aid testing device of claim 1, wherein: the base is provided with a chute, and the cylinder can be movably and rotatably arranged in the chute.
6. The bone conduction hearing aid testing device of claim 1, wherein: a gasket is arranged at one end of the pressure lever close to the probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110332226.1A CN112887889B (en) | 2021-03-29 | 2021-03-29 | Bone conduction type hearing aid testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110332226.1A CN112887889B (en) | 2021-03-29 | 2021-03-29 | Bone conduction type hearing aid testing device |
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| Publication Number | Publication Date |
|---|---|
| CN112887889A true CN112887889A (en) | 2021-06-01 |
| CN112887889B CN112887889B (en) | 2022-09-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110332226.1A Active CN112887889B (en) | 2021-03-29 | 2021-03-29 | Bone conduction type hearing aid testing device |
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| CN (1) | CN112887889B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116347317A (en) * | 2023-05-17 | 2023-06-27 | 杭州惠耳听力技术设备有限公司 | Hearing aid testing device and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6671381B1 (en) * | 1993-11-23 | 2003-12-30 | Gabriele Lux-Wellenhof | Sleeve for hearing aids, and a method and apparatus for testing hearing |
| CN108882138A (en) * | 2018-07-16 | 2018-11-23 | 合肥禾松信息科技有限公司 | A kind of embedded computer is with headphone test machine people |
| CN109982226A (en) * | 2019-04-11 | 2019-07-05 | 深圳市吸铁石科技有限公司 | State switching method of bone conduction hearing aid device, wearing detection unit and hearing aid device |
| CN209402723U (en) * | 2019-08-05 | 2019-09-17 | 共达电声股份有限公司 | A kind of bone-conduction speaker |
| CN212115645U (en) * | 2020-07-03 | 2020-12-08 | 佛山博智医疗科技有限公司 | Self-adaptive audiometric earphone device |
-
2021
- 2021-03-29 CN CN202110332226.1A patent/CN112887889B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6671381B1 (en) * | 1993-11-23 | 2003-12-30 | Gabriele Lux-Wellenhof | Sleeve for hearing aids, and a method and apparatus for testing hearing |
| CN108882138A (en) * | 2018-07-16 | 2018-11-23 | 合肥禾松信息科技有限公司 | A kind of embedded computer is with headphone test machine people |
| CN109982226A (en) * | 2019-04-11 | 2019-07-05 | 深圳市吸铁石科技有限公司 | State switching method of bone conduction hearing aid device, wearing detection unit and hearing aid device |
| CN209402723U (en) * | 2019-08-05 | 2019-09-17 | 共达电声股份有限公司 | A kind of bone-conduction speaker |
| CN212115645U (en) * | 2020-07-03 | 2020-12-08 | 佛山博智医疗科技有限公司 | Self-adaptive audiometric earphone device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116347317A (en) * | 2023-05-17 | 2023-06-27 | 杭州惠耳听力技术设备有限公司 | Hearing aid testing device and method |
| CN116347317B (en) * | 2023-05-17 | 2023-08-08 | 杭州惠耳听力技术设备有限公司 | Hearing aid testing device and method |
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| Publication number | Publication date |
|---|---|
| CN112887889B (en) | 2022-09-06 |
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