CN209402733U - A kind of test fixture for headphone - Google Patents
A kind of test fixture for headphone Download PDFInfo
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- CN209402733U CN209402733U CN201821782495.8U CN201821782495U CN209402733U CN 209402733 U CN209402733 U CN 209402733U CN 201821782495 U CN201821782495 U CN 201821782495U CN 209402733 U CN209402733 U CN 209402733U
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Abstract
The utility model relates to a kind of test fixtures for headphone, including artificial mouth and artificial ear, it further include pedestal, left earphone fixed mechanism, right earphone fixed mechanism, artificial mouth sliding block and apart from testing agency, left earphone fixed mechanism includes the left slider being slidably connected with pedestal and the left fixed block that is detachably connected with left slider, right earphone fixed mechanism includes the right sliding block being slidably connected with pedestal and the right fixed block with right sliding block dismantling connection, it is detachably provided on left slider and right sliding block apart from testing agency, artificial mouth sliding slot and earphone sliding slot are provided on pedestal, left slider and right sliding block are all set in earphone sliding slot and move back and forth along earphone sliding slot direction, artificial mouth sliding block is set in artificial mouth sliding slot and moves back and forth along artificial mouth sliding slot direction.The test posture of earphone can be adjusted, the effect of test has been effectively ensured, and structure is simple in the true real case being worn in human ear for reflecting headphone, and easy to operate, versatility is high.
Description
Technical field
The utility model relates to headphone testing fields, control more particularly to a kind of test for headphone
Tool.
Background technique
The quality of the voice signal in relation to sound source is extracted for raising headphone at present, it will usually be arranged in headphone
At least four microphone.Since each single microphone has a certain difference, in order to keep the electroacoustic feature of each microphone most
Amount is consistent, needs to carry out calibration test to each microphone.
However, the position of each microphone aperture set in headphone is different at present, and headphone ear
Cup portion can generally also have relative displacement phenomenon with wearing part, therefore, calibrate in each microphone to headphone
When test, it is difficult accurately to fix entire headphone.
In addition, headphone is placed in test fixture every time during carrying out calibration test to each microphone
When, existing headphone electroacoustical measurement device is usually nonadjustable, so the headphone to different model into
When row electroacoustical measurement, different electroacoustical measurement devices must be customized according to model, will increase the cost of electroacoustical measurement in this way.
Utility model content
The purpose of this utility model is to provide a kind of test fixtures for headphone, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above objectives, the present invention adopts the following technical solutions: a kind of test for headphone is controlled
Tool, including artificial mouth, artificial ear, pedestal, left earphone fixed mechanism, right earphone fixed mechanism, the emulation being slidably connected with pedestal
Mouth sliding block, apart from testing agency and headband fixed mechanism, left earphone fixed mechanism include the left slider being slidably connected with pedestal and
The left fixed block being detachably connected with left slider, right earphone fixed mechanism include the right sliding block being slidably connected with pedestal and with right cunning
It is removably connected with respectively on the opposite sides face of the right fixed block of block dismantling connection, left slider and right sliding block apart from detection machine
Structure is provided with artificial mouth sliding slot and earphone sliding slot arranged in parallel on pedestal, and left slider and right sliding block are all set in earphone
Move back and forth in sliding slot and along earphone sliding slot direction, artificial mouth sliding block is set in artificial mouth sliding slot and along artificial mouth sliding slot direction
Move back and forth.
It is adjusted between left earphone fixed mechanism and right earphone fixed mechanism by adjusting the position of left slider and right sliding block
Spacing, by movable simulation mouth sliding block adjust artificial mouth position, when testing headphone, pass through earphone itself
Chucking power come the headband, left ear muff and auris dextra set of fixed earphone, it is true to reflect that being worn on for headphone is true in human ear
Truth shape can adjust the test posture of earphone, the effect of test be effectively ensured, and adjusting is simple to operate reliable,
Versatility is high, and structure is simple, effectively reduces cost.
Headband fixed mechanism is set between left fixed block and right fixed block, and headband fixed mechanism includes connector and installation
Seat, mounting base are detachably set in the middle part of connector, and mounting base includes mounting base main body, the limit that is fixedly connected with mounting base main body
Position bar and stop nut is provided with external screw thread on gag lever post, and external screw thread and stop nut are threadedly engaged.
Mounting base is used for fixing head band, and headband is tightened under the action of own resilient, and mounting base fixes headband, can
It is fixed the position of headband, improves measuring accuracy.
Mounting base further includes the scale bar being fixedly connected with mounting base main body, and scale bar and gag lever post are arranged in parallel, scale
It is carved with a plurality of scale on bar, is offered on connector respectively for gag lever post and the perforative through hole of scale bar.
Mounting base and company can be accurately adjusted using the combination for having graduated scale bar and gag lever post and stop nut
Gap size between fitting realizes the accurate adjusting of headband position, improves the accuracy of detection.
The circumferential direction of the left fixed block and right fixed block is equipped with multiple positioning screw holes, and headband fixed mechanism includes limit spiral shell
Silk, connector both ends are offered respectively for the perforative locating slot of limited screw, and limited screw passes through locating slot and positioning screw hole spiral shell
Line cooperation.
Set screw can pass through locating slot and be arranged in positioning screw hole and be screw-locked on left fixed block or right fixed block, to even
Fitting is clamped positioning, is adjusted by the position of positioning screw hole in the position of connector, set screw can be left in locating slot
It moving right, mounting base is inserted into connector, the position of mounting base can be adjusted, if headband fixed mechanism damages, replaceable zero
Part, no replacement is required entire jig.
Include Test bench, laser range finder and reflector block apart from testing agency, offers in the middle part of test bench for Laser Measuring
Distance meter or the mounting groove of reflector block installation, laser range finder and reflector block be embedded in Test bench respectively and laser range finder and
Reflector block is oppositely arranged, and offers the test groove being embedded for Test bench on left slider and right sliding block respectively.
Reflector is arranged on the path for the laser that laser range finder issues, and laser range finder reflector is oppositely arranged,
The distance between laser range finder and reflector are the distance between left slider and right sliding block, by laser range finder and reflective
Plate can accurately measure the distance between left slider and right sliding block, avoid left earphone fixed mechanism and right earphone fixed mechanism
The distance between change cause influence test result.
The spill groove body to match with earphone shape is respectively equipped on left fixed block and right fixed block, left fixed block and the right side are solid
Determine the side on block far from spill groove body and be equipped with the accommodation groove to match with artificial ear shape, spill groove body is connected to accommodation groove.
By the way that the spill groove body to match with earphone is arranged on left fixed block and right fixed block, earphone and spill groove body are tight
Closely connected conjunction can make earphone uniform force, by the way that the accommodation groove to match with artificial ear is arranged on left fixed block and right fixed block,
Artificial ear is at least partly placed in accommodation groove, increases contact area, can make artificial ear uniform force, and artificial ear installation is more steady
It is fixed.
Accommodating groove edge is detachably provided with several position limiting clamps, and position limiting clamp includes fastening screw and L-shaped position limiting clamp master
Body offers on position limiting clamp for the perforative through-hole of fastening screw, accommodates groove edge and correspond to through-hole position and offers threaded hole, fastening
Screw and threaded hole are threadedly coupled.
Position limiting clamp is detachably connected with left fixed block and right fixed block respectively by the fastening screw in through-hole, effectively
Prevent artificial ear from shifting, meanwhile, artificial ear remains to be freely rotated, convenient for users to adjusting the angle of artificial ear at any time.
The junction of the peripheral surface and connector of left fixed block and right fixed block is provided with connection plane.
Increase the contact area of connector and left fixed block and right fixed block, improves connector stability, avoid connector
On headband shake when detecting, improve accuracy.
Be provided between accommodation groove and position limiting clamp for accommodating artificial ear rubber pressure cover, rubber pressure cover be internally provided with
The recess that artificial ear shape matches, rubber pressure cover is external to be provided with to bit pointer, is accommodated groove edge and is arranged with calibration loop.
Accommodation groove is arranged with calibration loop, and calibration loop is located at the junction for accommodating groove edge and rubber pressure cover, and rubber pressure is covered
It is provided with to bit pointer, the rotational angle of artificial ear can be accurately adjusted by rotation rubber pressure cover and using calibration loop, thus
Accurate to adjust artificial ear, easy to use, structure is simple, improves working efficiency.
Preferably, it is provided with outside artificial ear to bit pointer, accommodates groove edge and be arranged with calibration loop.
Accommodation groove is arranged with calibration loop, and calibration loop is located at accommodation groove edge, is provided on artificial ear to bit pointer, passes through
Rotation artificial ear and the rotational angle that artificial ear can be accurately adjusted using calibration loop, easy to use, structure is simple, improves work
Make efficiency.
The utility model has the following beneficial effects: the position of left earphone fixed mechanism, right earphone fixed mechanism and artificial mouth sliding block
Set it is adjustable, it is applied widely, the test posture of earphone can be adjusted, it is true to reflect that being worn on for headphone is true in human ear
The effect of test has been effectively ensured in truth shape, and adjusting is simple to operate reliable, and versatility is high, and structure is simple, effectively drops
Low cost.
Detailed description of the invention
The utility model is described in further detail for attached drawing, but the embodiment in attached drawing is not constituted to any of the utility model
Limitation.
Fig. 1 is the structural schematic diagram for the test fixture for headphone that an embodiment of the present invention provides；
Fig. 2 is the plan structure signal for the test fixture for headphone that an embodiment of the present invention provides
Figure；
The test fixture for headphone that Fig. 3 provides for an embodiment of the present invention looks up structural representation
Figure；
Fig. 4 is the structure of the left fixed block for the test fixture for headphone that an embodiment of the present invention provides
Enlarged diagram；
Fig. 5 is the headband fixed mechanism for the test fixture for headphone that an embodiment of the present invention provides
Structure enlargement diagram.
Pointer in figure: pedestal 1, artificial mouth sliding slot 11, earphone sliding slot 12, left earphone fixed mechanism 2, left slider 21, Zuo Gu
Determine block 22, right earphone fixed mechanism 3, right sliding block 31, right fixed block 32, positioning screw hole 41, connection plane 42, accommodation groove 43, recessed
Shape groove body 44, position limiting clamp 45, headband fixed mechanism 5, connector 51, locating slot 511, mounting base 52, artificial mouth 6, artificial mouth are sliding
Block 61, artificial ear 7.
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein
Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.
It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element
On one element or it may be simultaneously present centering elements.When an element is known as " being connected to " another element, it can
To be directly to another element or may be simultaneously present centering elements.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, left and right " is usual
Refer to it is as shown in Figure 1 up and down." inside and outside " refer in specific profile it is interior with it is outer." remote, close " refers to relative to some portion
Part it is remote with it is close.
Embodiment 1
As shown in figures 1-5, a kind of test fixture for headphone that an embodiment of the present invention provides, packet
Include artificial mouth 6, artificial ear 7, pedestal 1, left earphone fixed mechanism 2, right earphone fixed mechanism 3, be slidably connected with pedestal 1 it is imitative
True 6 sliding block of mouth, apart from testing agency and headband fixed mechanism 5, left earphone fixed mechanism 2 includes the left side being slidably connected with pedestal 1
Sliding block 21 and the left fixed block 22 being detachably connected with left slider 21, right earphone fixed mechanism 3 include being slidably connected with pedestal 1
On the opposite sides face of right sliding block 31 and right fixed block 32 with right 31 dismantling connection of sliding block, left slider 21 and right sliding block 31 respectively
It is removably connected with and is provided with 6 sliding slot 11 of artificial mouth and earphone sliding slot arranged in parallel in testing agency, pedestal 1
12, left slider 21 and right sliding block 31 are all set in earphone sliding slot 12 and move back and forth along 12 direction of earphone sliding slot, and artificial mouth 6 is sliding
Block is set in 6 sliding slot 11 of artificial mouth and moves back and forth along 6 sliding slot of artificial mouth, 11 direction.
Left earphone fixed mechanism 2 and right earphone fixed mechanism are adjusted by adjusting the position of left slider 21 and right sliding block 31
Spacing between 3 is adjusted the position of artificial mouth 6 by 6 sliding block of movable simulation mouth, when testing headphone, passed through
The chucking power of earphone itself carrys out the headband, left ear muff and auris dextra set of fixed earphone, and true reflection headphone is worn on people
Real case on ear can adjust the test posture of earphone, the effect of test be effectively ensured, and adjust side easy to operate
It can lean on, versatility is high, and structure is simple, effectively reduces cost.
Headband fixed mechanism 5 is set between left fixed block 22 and right fixed block 32, and headband fixed mechanism 5 includes connector
51 and mounting base 52, mounting base 52 is detachably set to 51 middle part of connector, mounting base 52 include 52 main body of mounting base, with installation
52 main bodys of the seat gag lever post and stop nut that are fixedly connected are provided with external screw thread, external screw thread and stop nut screw thread on gag lever post
Cooperation.
Mounting base 52 is used for fixing head band, and headband is tightened under the action of own resilient, and mounting base 52 consolidates headband
It is fixed, the position of headband can be made to be fixed, improve measuring accuracy.
Mounting base 52 further includes the scale bar being fixedly connected with 52 main body of mounting base, and scale bar and gag lever post are arranged in parallel,
It is carved with a plurality of scale on scale bar, is offered on connector 51 respectively for gag lever post and the perforative through hole of scale bar.
52 He of mounting base can be accurately adjusted using the combination for having graduated scale bar and gag lever post and stop nut
Gap size between connector 51 realizes the accurate adjusting of headband position, improves the accuracy of detection.
The circumferential direction of the left fixed block 22 and right fixed block 32 is equipped with multiple positioning screw holes 41, and headband fixed mechanism 5 wraps
Limited screw is included, 51 both ends of connector are offered respectively for the perforative locating slot 511 of limited screw, and limited screw passes through locating slot
511 are threadedly engaged with positioning screw hole 41.
Set screw can pass through locating slot 511 and be arranged in positioning screw hole 41 and be screw-locked at left fixed block 22 or right fixed block
On 32, positioning is clamped to connector 51, is adjusted by the position of positioning screw hole 41 in the position of connector 51, set screw
It can be moved left and right in locating slot 511, mounting base 52 is inserted into connector 51, the position of mounting base 52 can be adjusted, if headband
Fixed mechanism 5 damages, replaceable components, no replacement is required entire jig.
Include Test bench, laser range finder and reflector block apart from testing agency, offers in the middle part of test bench for Laser Measuring
Distance meter or the mounting groove of reflector block installation, laser range finder and reflector block be embedded in Test bench respectively and laser range finder and
Reflector block is oppositely arranged, and offers the test groove being embedded for Test bench on left slider 21 and right sliding block 31 respectively.
Reflector is arranged on the path for the laser that laser range finder issues, and laser range finder reflector is oppositely arranged,
The distance between laser range finder and reflector are the distance between left slider 21 and right sliding block 31, by laser range finder and
Reflector can accurately measure the distance between left slider 21 and right sliding block 31, avoid left earphone fixed mechanism 2 and right earphone
The change of the distance between fixed mechanism 3 causes to influence test result.
The spill groove body 44 to match with earphone shape, left fixed block are respectively equipped on left fixed block 22 and right fixed block 32
22 and right fixed block 32 on the side far from spill groove body 44 be equipped with the accommodation groove 43 that matches with 7 shape of artificial ear, baltimore groove
Body 44 is connected to accommodation groove 43.
By the way that the spill groove body 44 to match with earphone, earphone and spill are arranged on left fixed block 22 and right fixed block 32
Groove body 44 fits closely, and can make earphone uniform force, by being arranged and 7 phase of artificial ear on left fixed block 22 and right fixed block 32
Matched accommodation groove 43, artificial ear 7 are at least partly placed in accommodation groove 43, are increased contact area, can be made 7 stress of artificial ear
Uniformly, artificial ear 7 is installed more stable.
43 edge of accommodation groove is detachably provided with several position limiting clamps 45, and position limiting clamp 45 includes fastening screw and L-shaped limit
Position presss from both sides 45 main bodys, offers on position limiting clamp 45 for the perforative through-hole of fastening screw, 43 edge of accommodation groove corresponds to through-hole position and opens up
There is threaded hole, fastening screw and threaded hole are threadedly coupled.
Position limiting clamp 45 is detachably connected with left fixed block 22 and right fixed block 32 respectively by the fastening screw in through-hole
It connects, artificial ear 7 is effectively prevent to shift, meanwhile, artificial ear 7 remains to be freely rotated, convenient for users to adjusting the angle of artificial ear 7 at any time
Degree.
The peripheral surface of left fixed block 22 and right fixed block 32 is provided with the junction of connector 51 connect plane 42.
Increase the contact area of connector 51 and left fixed block 22 and right fixed block 32, improves 51 stability of connector, keep away
The headband exempted from connector 51 shakes when detecting, improves accuracy.
It is provided with outside artificial ear 7 to bit pointer, 43 edge of accommodation groove is arranged with calibration loop.
Accommodation groove 43 is arranged with calibration loop, and calibration loop is located at 43 edge of accommodation groove, is provided on rubber pressure cover to bit pointer,
It is covered by rotation rubber pressure and can accurately adjust the rotational angle of artificial ear 7 using calibration loop, to accurately adjust artificial ear
7, easy to use, structure is simple, improves working efficiency.
Embodiment 2
A kind of test fixture for headphone, including artificial mouth 6, artificial ear 7, pedestal 1, left earphone fixed mechanism
2, right earphone fixed mechanism 3, be slidably connected with pedestal 16 sliding block of artificial mouth, apart from testing agency and headband fixed mechanism 5, it is left
Earphone fixed mechanism 2 includes the left slider 21 being slidably connected with pedestal 1 and the left fixed block that is detachably connected with left slider 21
22, right earphone fixed mechanism 3 includes the right sliding block 31 being slidably connected with pedestal 1 and the right fixed block with right 31 dismantling connection of sliding block
32, it is removably connected on the opposite sides face of left slider 21 and right sliding block 31 and is provided in testing agency, pedestal 1 respectively
6 sliding slot 11 of artificial mouth arranged in parallel and earphone sliding slot 12, left slider 21 and right sliding block 31 are all set in earphone sliding slot 12
In and move back and forth along 12 direction of earphone sliding slot, 6 sliding block of artificial mouth is set in 6 sliding slot 11 of artificial mouth and along 6 sliding slot of artificial mouth
11 directions move back and forth.
Left earphone fixed mechanism 2 and right earphone fixed mechanism are adjusted by adjusting the position of left slider 21 and right sliding block 31
Spacing between 3 is adjusted the position of artificial mouth 6 by 6 sliding block of movable simulation mouth, when testing headphone, passed through
The chucking power of earphone itself carrys out the headband, left ear muff and auris dextra set of fixed earphone, and true reflection headphone is worn on people
Real case on ear can adjust the test posture of earphone, the effect of test be effectively ensured, and adjust side easy to operate
It can lean on, versatility is high, and structure is simple, effectively reduces cost.
Headband fixed mechanism 5 is set between left fixed block 22 and right fixed block 32, and headband fixed mechanism 5 includes connector
51 and mounting base 52, mounting base 52 is detachably set to 51 middle part of connector, mounting base 52 include 52 main body of mounting base, with installation
52 main bodys of the seat gag lever post and stop nut that are fixedly connected are provided with external screw thread, external screw thread and stop nut screw thread on gag lever post
Cooperation.
Mounting base 52 is used for fixing head band, and headband is tightened under the action of own resilient, and mounting base 52 consolidates headband
It is fixed, the position of headband can be made to be fixed, improve measuring accuracy.
Mounting base 52 further includes the scale bar being fixedly connected with 52 main body of mounting base, and scale bar and gag lever post are arranged in parallel,
It is carved with a plurality of scale on scale bar, is offered on connector 51 respectively for gag lever post and the perforative through hole of scale bar.
52 He of mounting base can be accurately adjusted using the combination for having graduated scale bar and gag lever post and stop nut
Gap size between connector 51 realizes the accurate adjusting of headband position, improves the accuracy of detection.
The circumferential direction of the left fixed block 22 and right fixed block 32 is equipped with multiple positioning screw holes 41, and headband fixed mechanism 5 wraps
Limited screw is included, 51 both ends of connector are offered respectively for the perforative locating slot 511 of limited screw, and limited screw passes through locating slot
511 are threadedly engaged with positioning screw hole 41.
Set screw can pass through locating slot 511 and be arranged in positioning screw hole 41 and be screw-locked at left fixed block 22 or right fixed block
On 32, positioning is clamped to connector 51, is adjusted by the position of positioning screw hole 41 in the position of connector 51, set screw
It can be moved left and right in locating slot 511, mounting base 52 is inserted into connector 51, the position of mounting base 52 can be adjusted, if headband
Fixed mechanism 5 damages, replaceable components, no replacement is required entire jig.
Include Test bench, laser range finder and reflector block apart from testing agency, offers in the middle part of test bench for Laser Measuring
Distance meter or the mounting groove of reflector block installation, laser range finder and reflector block be embedded in Test bench respectively and laser range finder and
Reflector block is oppositely arranged, and offers the test groove being embedded for Test bench on left slider 21 and right sliding block 31 respectively.
Reflector is arranged on the path for the laser that laser range finder issues, and laser range finder reflector is oppositely arranged,
The distance between laser range finder and reflector are the distance between left slider 21 and right sliding block 31, by laser range finder and
Reflector can accurately measure the distance between left slider 21 and right sliding block 31, avoid left earphone fixed mechanism 2 and right earphone
The change of the distance between fixed mechanism 3 causes to influence test result.
The spill groove body 44 to match with earphone shape, left fixed block are respectively equipped on left fixed block 22 and right fixed block 32
22 and right fixed block 32 on the side far from spill groove body 44 be equipped with the accommodation groove 43 that matches with 7 shape of artificial ear, baltimore groove
Body 44 is connected to accommodation groove 43.
By the way that the spill groove body 44 to match with earphone, earphone and spill are arranged on left fixed block 22 and right fixed block 32
Groove body 44 fits closely, and can make earphone uniform force, by being arranged and artificial ear 7 on left fixed block 22 and right fixed block 32
The accommodation groove 43 to match, artificial ear 7 are at least partly placed in accommodation groove 43, increase contact area, can make artificial ear 7 by
Power is uniform, and artificial ear 7 is installed more stable.
43 edge of accommodation groove is detachably provided with several position limiting clamps 45, and position limiting clamp 45 includes fastening screw and L-shaped limit
Position presss from both sides 45 main bodys, offers on position limiting clamp 45 for the perforative through-hole of fastening screw, 43 edge of accommodation groove corresponds to through-hole position and opens up
There is threaded hole, fastening screw and threaded hole are threadedly coupled.
Position limiting clamp 45 is detachably connected with left fixed block 22 and right fixed block 32 respectively by the fastening screw in through-hole
It connects, artificial ear 7 is effectively prevent to shift, meanwhile, artificial ear 7 remains to be freely rotated, convenient for users to adjusting the angle of artificial ear 7 at any time
Degree.
The peripheral surface of left fixed block 22 and right fixed block 32 is provided with the junction of connector 51 connect plane 42.
Increase the contact area of connector 51 and left fixed block 22 and right fixed block 32, improves 51 stability of connector, keep away
The headband exempted from connector 51 shakes when detecting, improves accuracy.
The rubber pressure cover for accommodating artificial ear 7 is provided between accommodation groove 43 and position limiting clamp 45, rubber pressure cover is internal to be set
It is equipped with the recess to match with 7 shape of artificial ear, rubber pressure cover is external to be provided with to bit pointer, and 43 edge of accommodation groove is arranged with quarter
Spend ring.
Accommodation groove 43 is arranged with calibration loop, and calibration loop is located at the junction at 43 edge of accommodation groove and rubber pressure cover, rubber pressure
It is provided on cover to bit pointer, the rotational angle of artificial ear 7 can be accurately adjusted by rotation rubber pressure cover and using calibration loop,
To accurately adjust artificial ear 7, easy to use, structure is simple, improves working efficiency.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (6)
1. a kind of test fixture for headphone, including artificial mouth and artificial ear, it is characterised in that: further include pedestal,
Left earphone fixed mechanism, right earphone fixed mechanism, the artificial mouth sliding block being slidably connected with pedestal and apart from testing agency, left earphone
Fixed mechanism includes the left slider being slidably connected with pedestal and the left fixed block that is detachably connected with left slider, the fixed machine of right earphone
Structure includes the right sliding block being slidably connected with pedestal and the right fixed block with right sliding block dismantling connection, left slider and right sliding block it is opposite
It is removably connected with respectively on two sides and is provided with artificial mouth sliding slot and ear arranged in parallel in testing agency, pedestal
Machine sliding slot, left slider and right sliding block are all set in earphone sliding slot and move back and forth along earphone sliding slot direction, and artificial mouth sliding block is set
It is placed in artificial mouth sliding slot and moves back and forth along artificial mouth sliding slot direction, further include headband fixed mechanism, headband fixed mechanism is set
It is placed between left fixed block and right fixed block, headband fixed mechanism includes connector and mounting base, and mounting base is detachably set to
In the middle part of connector, mounting base includes mounting base main body, the gag lever post and stop nut that are fixedly connected with mounting base main body, gag lever post
On be provided with external screw thread, external screw thread and stop nut are threadedly engaged, and are respectively equipped on the left fixed block and right fixed block and ear
Side on the spill groove body that machine shape matches, left fixed block and right fixed block far from spill groove body is equipped with and artificial ear shape
The accommodation groove to match, spill groove body are connected to accommodation groove, and the accommodating groove edge is detachably provided with several position limiting clamps, position limiting clamp
Including fastening screw and L-shaped limit clip main body, is offered on position limiting clamp for the perforative through-hole of fastening screw, accommodate groove edge
Corresponding through-hole position offers threaded hole, and fastening screw and threaded hole are threadedly coupled.
2. according to claim 1 be used for headphone test fixture, it is characterised in that: the mounting base further include with
The scale bar that mounting base main body is fixedly connected, scale bar and gag lever post are arranged in parallel, and a plurality of scale, connector are carved on scale bar
On offer respectively for gag lever post and the perforative through hole of scale bar.
3. being used for the test fixture of headphone according to claim 1, it is characterised in that: the left fixed block and the right side are solid
The circumferential direction for determining block is equipped with multiple positioning screw holes, and headband fixed mechanism includes limited screw, and connector both ends offer confession respectively
The perforative locating slot of limited screw, limited screw pass through locating slot and are threadedly engaged with positioning screw hole.
4. being used for the test fixture of headphone according to claim 1, it is characterised in that: described to be wrapped apart from testing agency
Test bench, laser range finder and reflector block are included, the installation for laser range finder or reflector block installation is offered in the middle part of test bench
Slot, laser range finder and reflector block are embedded at respectively in Test bench and laser range finder and reflector block are oppositely arranged, left slider
With the test groove being embedded for Test bench is offered on right sliding block respectively.
5. being used for the test fixture of headphone according to claim 1, it is characterised in that: the left fixed block and the right side are solid
The junction of the peripheral surface and connector of determining block is provided with connection plane.
6. being used for the test fixture of headphone according to claim 1, it is characterised in that: the accommodation groove and the limit
The rubber pressure cover for accommodating artificial ear is provided between the folder of position, rubber pressure cover, which is internally provided with, to match with artificial ear shape
Recess, rubber pressure cover is external to be provided with to bit pointer, is accommodated groove edge and is fixedly installed calibration loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821782495.8U CN209402733U (en) | 2018-10-31 | 2018-10-31 | A kind of test fixture for headphone |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821782495.8U CN209402733U (en) | 2018-10-31 | 2018-10-31 | A kind of test fixture for headphone |
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| CN209402733U true CN209402733U (en) | 2019-09-17 |
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| CN201821782495.8U Active CN209402733U (en) | 2018-10-31 | 2018-10-31 | A kind of test fixture for headphone |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114363784A (en) * | 2021-12-16 | 2022-04-15 | 安徽讴歌电子科技有限公司 | Earplug type earphone testing machine |
| CN114666719A (en) * | 2022-03-01 | 2022-06-24 | 深圳市百泰实业股份有限公司 | Noise reduction earphone testing device |
-
2018
- 2018-10-31 CN CN201821782495.8U patent/CN209402733U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114363784A (en) * | 2021-12-16 | 2022-04-15 | 安徽讴歌电子科技有限公司 | Earplug type earphone testing machine |
| CN114666719A (en) * | 2022-03-01 | 2022-06-24 | 深圳市百泰实业股份有限公司 | Noise reduction earphone testing device |
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Address after: 516006 No. 56, Dongxing Road, Chenjiang street, Zhongkai high tech Zone, Huizhou City, Guangdong Province (plant 35) Patentee after: HUIZHOU GUIDE MEASUREMENT AND CONTROL TECHNOLOGY Co.,Ltd. Address before: 516006 plant 1, Hechang East 4th Road, Zhongkai high tech Zone, Huizhou City, Guangdong Province Patentee before: HUIZHOU GUIDE MEASUREMENT AND CONTROL TECHNOLOGY Co.,Ltd. |