CN214799888U

CN214799888U - Acoustic testing device

Info

Publication number: CN214799888U
Application number: CN202121358001.5U
Authority: CN
Inventors: 吴玑琪; 赵品彰; 吴云; 王婷
Original assignee: Jiangsu Institute Of Econometrics (jiangsu Energy Measurement Data Center)
Current assignee: Jiangsu Institute Of Econometrics (jiangsu Energy Measurement Data Center)
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2021-11-19
Anticipated expiration: 2031-06-18

Abstract

The utility model discloses an acoustic testing device, which comprises a base, a first loudspeaker, a mounting column, a supporting plate, a sliding piece, a mounting disc, a supporting plate, a supporting rod, a fixed rod, an extension rod and a second loudspeaker; the sliding piece is axially and slidably connected with the mounting column through a first sliding mechanism, and the supporting plate is axially and slidably connected with the sliding piece through a second sliding mechanism; the mounting disc is connected with the sliding piece in a radial sliding mode through a third sliding mechanism; the supporting plate is connected with the base in a sliding mode through a fourth sliding mechanism and slides circumferentially around the mounting column; one end of the fixed rod is connected with the support rod in an axial sliding mode through a fifth sliding mechanism, the other end of the fixed rod is fixedly connected with the extension rod, and the second loudspeaker is installed on the extension rod. The utility model discloses can adapt the headphone of different models, also can simulate different head types, simultaneously can the noise simulation, and can test the influence of the sound source of different distances to headphone's microphone pickup effect.

Description

Acoustic testing device

Technical Field

The utility model relates to an acoustics test field, in particular to acoustics testing arrangement.

Background

Along with the improvement of the living standard of people, the demand of people on the headset is larger and larger, and the requirement on the noise reduction capability of the headset is higher and higher. Before the headset leaves the factory, the headset needs to be tested, and the headset can leave the factory and be sold after the test is qualified.

When traditional testing arrangement tested, the headphone was fixed inconvenient, and did not possess regulatory function, was unfavorable for using the headphone of one set of testing arrangement test multiple model, and current testing arrangement does not possess noise simulation function, can't test the ability of making an uproar that falls of headphone, can't satisfy the test demand of modern earphone mill, and is very inconvenient.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to overcome the deficiencies in the prior art, the utility model provides an acoustic testing device.

The technical scheme is as follows: in order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides an acoustics testing arrangement, includes base, first speaker, erection column, layer board, slider, installation disc, backup pad, bracing piece, dead lever, extension rod, second speaker, wherein:

the number of the first loudspeakers is more than two, the first loudspeakers are arranged on the upper surface of the base, the bottoms of the mounting columns are arranged on the upper surface of the base, and the first loudspeakers are distributed along the circumferential direction of the mounting columns; the sliding piece is axially and slidably connected with the mounting column through a first sliding mechanism, and the supporting plate is axially and slidably connected with the sliding piece through a second sliding mechanism; the mounting disc is connected with the sliding piece in a radial sliding mode through a third sliding mechanism; the supporting plate is connected with the base in a sliding mode through a fourth sliding mechanism and slides circumferentially around the mounting column; the bracing piece is installed in the backup pad, dead lever one end is through fifth slide mechanism and bracing piece axial sliding connection, the other end and extension rod fixed connection, the second speaker is installed on the extension rod.

Preferably: the first sliding mechanism comprises a mounting groove and a first sliding block, the mounting groove is arranged in the axial direction of the mounting column, the first sliding block is arranged on the sliding piece, the first sliding block is arranged in the sliding groove, and the first sliding block is connected with the sliding groove in a sliding mode.

Preferably: the second sliding mechanism comprises a second telescopic hole and a second telescopic column, the second telescopic hole is formed in the axial direction of the mounting column, one end of the second telescopic column extends into the second telescopic hole, and the other end of the second telescopic column is fixedly connected with the supporting plate.

Preferably: the third sliding mechanism comprises a third telescopic pipe and a telescopic rod, one end of the telescopic rod extends into the third telescopic pipe, and the other end of the telescopic rod is fixedly connected with the mounting disc.

Preferably: the fourth sliding mechanism comprises a sliding rail and a fourth sliding block, the sliding rail is arranged on the base, and the sliding rail is arranged around the circumferential direction of the mounting column; the fourth sliding block is connected with the sliding rail in a sliding mode and is fixedly connected with the supporting plate.

Preferably: the fifth sliding mechanism comprises an adjusting groove and an adjusting knob, the adjusting groove is formed in the axial direction of the fixing rod, the fixing rod is connected with the adjusting groove in a sliding mode, and the adjusting knob penetrates through the adjusting groove and is connected with the fixing rod in a threaded mode.

Preferably: the positioning device comprises a first positioning mechanism, a second positioning mechanism, a third positioning mechanism and a fourth positioning mechanism, wherein the first positioning mechanism comprises a first positioning screw hole and a first positioning screw, the first positioning screw hole is formed in a sliding part, the first positioning screw hole penetrates through a connecting surface between the sliding part and an installation column, and the first positioning screw is in threaded connection with the first positioning screw hole; the second positioning mechanism comprises a row of second positioning screw holes and second positioning screws, the second positioning screw holes are axially arranged on the telescopic column, and the second positioning screws are in threaded connection with one of the second positioning screw holes; the third positioning mechanism comprises a third positioning screw hole and a third positioning screw, the third positioning screw hole is formed in the third telescopic pipe and penetrates through a connecting surface between the third telescopic pipe and the telescopic rod, and the third positioning screw is in threaded connection with the third positioning screw hole; the fourth positioning mechanism comprises a fourth positioning screw hole and a fourth positioning screw, the fourth positioning screw hole is formed in the supporting plate, the fourth positioning screw hole penetrates through a connecting surface between the supporting plate and the base, and the fourth positioning screw is in threaded connection with the fourth positioning screw hole.

Preferably: be provided with the mounting groove on the upper surface of base, the bottom of erection column is provided with the mounting panel, the erection column passes through the mounting panel to be installed on the mounting groove.

Preferably: and a rubber strip is arranged on the lower surface of the base.

Preferably: the first loudspeakers are uniformly distributed along the circumferential direction of the mounting column.

Compared with the prior art, the utility model, following beneficial effect has:

the utility model discloses a first slide mechanism adjusts the upper and lower height of slider, adjusts the upper and lower height of layer board through second slide mechanism, adjusts the width between the installation disc through third slide mechanism, and then can simulate different head types, and the person of facilitating the use tests, but first speaker noise simulation for the ability of making an uproar falls in test headphone, the influence of the sound source of the testable different distances of second speaker to headphone's microphone pickup effect.

Drawings

Fig. 1 is one of the overall structural schematic diagrams of the present invention;

fig. 2 is a second schematic view of the overall structure of the present invention;

fig. 3 is a schematic diagram of the overall structure of the present invention;

fig. 4 is a partial structural schematic diagram of the present invention;

fig. 5 is a bottom view of the present invention;

in the figure: 1. a base; 2. mounting grooves; 3. a slide rail; 4. a first speaker; 5. mounting a plate; 6. mounting a column; 7. a telescopic column; 8. a support plate; 9. a slider; 10. a telescopic rod; 11. installing a disc; 12. an audio collector; 13. a support plate; 14. a support bar; 15. an adjustment groove; 16. fixing the rod; 17. an extension pole; 18. a second speaker; 19. adjusting a knob; 20. a chute; 21. a first slider; 22. a second slider; 23. a rubber strip.

Detailed Description

The invention will be further elucidated with reference to the drawings and specific embodiments, it being understood that these examples are intended to illustrate the invention only and are not intended to limit the scope of the invention, and that modifications to the various equivalent forms of the invention, which may occur to those skilled in the art after reading the present invention, fall within the scope of the invention as defined in the claims appended hereto.

An acoustic testing apparatus, as shown in fig. 1-5, comprises a base 1, a first speaker 4, a mounting post 6, a support plate 8, a sliding member 9, a mounting disc 11, a support plate 13, a support rod 14, a fixing rod 16, an extension rod 17, and a second speaker 18, wherein:

the number of first speaker 4 is more than two, and first speaker 4 sets up on the upper surface of base 1, the bottom of erection column 6 is installed on the upper surface of base 1, just first speaker 4 distributes along 6 circumferences of erection column. The number of the first loudspeakers 4 is four, and the first loudspeakers 4 are uniformly distributed along the circumferential direction of the mounting column 6. The first loudspeaker 4 may simulate noise for testing the noise reduction capability of the headset. Be provided with mounting groove 2 on the upper surface of base 1, the bottom of erection column 6 is provided with mounting panel 5, erection column 6 passes through mounting panel 5 to be installed on mounting groove 2.

The sliding part 9 is axially and slidably connected with the mounting column 6 through a first sliding mechanism, and the vertical height of the sliding part 9 can be adjusted through the first sliding mechanism. First slide mechanism includes mounting groove 2, first slider 21, mounting groove 2 sets up in the axial of erection column 6, first slider 21 sets up on slider 9, first slider 21 sets up in spout 20, just first slider 21 and spout 20 sliding connection, slider 9 and erection column 6 sliding connection, slider 9 slides along spout 20, and then slider 9 slides along erection column 6. The slide groove 20 and the first slider 21 are four in number, and the four first speakers 4 can simulate noise from different directions. Be provided with first positioning mechanism on the first slide mechanism, first positioning mechanism includes first positioning screw, first set screw, first positioning screw sets up on slider 9, just first positioning screw link up the connection face between slider 9 and the erection column 6, first positioning screw and first positioning screw threaded connection, when slider 9 slides to the position of needs at erection column 6, screw through first set screw and fix on erection column 6.

The supporting plate 8 is axially and slidably connected with the sliding part 9 through a second sliding mechanism, and the upper height and the lower height of the supporting plate 8 can be adjusted through the second sliding mechanism. The second sliding mechanism comprises a second telescopic hole and two telescopic columns 7, the number of the telescopic columns 7 is two, the second telescopic hole is formed in the axial direction of the mounting column 6, one end of each telescopic column 7 extends into the second telescopic hole, and the other end of each telescopic column is fixedly connected with the supporting plate 8. The second sliding mechanism is provided with a second positioning mechanism, the second positioning mechanism comprises a row of second positioning screw holes and second positioning screws, the second positioning screw holes are axially arranged on the telescopic column 7, and the second positioning screws are in threaded connection with one of the second positioning screw holes. When the telescopic column 7 slides to a required position in the telescopic hole II, the telescopic column is screwed and fixed on the telescopic column 7 through a second positioning screw, and then the supporting plate 8 is adjusted to a required height.

The mounting disc 11 is connected with the sliding part 9 in a radial sliding mode through a third sliding mechanism, and the left and right width of the mounting disc 11 can be adjusted through the third sliding mechanism. The third sliding mechanism comprises a third telescopic pipe and a telescopic rod 10, one end of the telescopic rod 10 extends into the third telescopic pipe, and the other end of the telescopic rod is fixedly connected with the mounting disc 11. And a third positioning mechanism is arranged on the third sliding mechanism and comprises a third positioning screw hole and a third positioning screw, the third positioning screw hole is arranged on the third telescopic pipe and penetrates through the connecting surface between the third telescopic pipe and the telescopic rod 10, and the third positioning screw is in threaded connection with the third positioning screw hole. When the telescopic rod 10 slides to a required position in the third telescopic pipe, the third positioning screw is screwed and fixed on the third telescopic pipe, and the left and right width of the mounting disc 11 is further adjusted.

The supporting plate 13 is connected with the base 1 in a sliding mode through a fourth sliding mechanism, the supporting plate 13 slides circumferentially around the mounting column 6, and the position between the supporting plate 13 and the mounting column 6 can be adjusted through a fourth sliding machine. The fourth sliding mechanism comprises a sliding rail 3 and a fourth sliding block 22, the sliding rail 3 is arranged on the base 1, and the sliding rail 3 is circumferentially arranged around the mounting column 6; the number of the slide rails 3 and the second sliders 22 is two. The fourth sliding block 22 is connected with the sliding rail 3 in a sliding manner, and the fourth sliding block 22 is fixedly connected with the supporting plate 13. The support plate 13 is slidable within the confines of the slide track 3. The fourth sliding mechanism is provided with a fourth positioning mechanism, the fourth positioning mechanism comprises a fourth positioning screw hole and a fourth positioning screw, the fourth positioning screw hole is formed in the supporting plate 13 and penetrates through the connecting surface between the supporting plate 13 and the base 1, and the fourth positioning screw is in threaded connection with the fourth positioning screw hole. When the supporting plate 13 slides to a required position within the range of the sliding rail 3, the supporting plate is screwed and fixed on the base 1 through a fourth positioning screw, and then the position between the supporting plate 13 and the mounting column 6 is adjusted and adjusted.

The support rod 14 is installed on the support plate 13, one end of the fixing rod 16 is axially slidably connected with the support rod 14 through a fifth sliding mechanism, the other end of the fixing rod is fixedly connected with the extension rod 17, the second loudspeaker 18 is installed on the extension rod 17, and the vertical height of the fixing rod 16 can be adjusted through the fifth sliding mechanism. The second speaker 18 can test the influence of sound sources at different distances on the sound pickup effect of the microphone of the headset. The fifth sliding mechanism comprises an adjusting groove 15 and an adjusting knob 19, the adjusting groove 15 is arranged on the axial direction of the fixing rod 16, the fixing rod 16 is connected with the adjusting groove 15 in a sliding mode, the adjusting knob 19 penetrates through the adjusting groove 15 to be connected with the fixing rod 16 in a threaded mode, the adjusting knob 19 can be loosened to adjust the height of the fixing rod 16 within the range of the adjusting groove 15, and the fixing rod 16 can be fixed by screwing the adjusting knob 19.

Be provided with rubber strip 23 on the lower surface of base 1, the quantity of rubber strip 23 is five, and rubber strip 23 is used for the antiskid.

During testing, the earphone sleeves of the to-be-tested earphones are sleeved on the mounting disc 11, the positions of the sliding pieces 9 on the mounting columns 6 and the lengths of the telescopic rods 10 are changed to adapt to the earphones of different models or simulate different head models, the telescopic columns 7 can be further adjusted to simulate more head models, the supporting plates 8 are used for supporting the head beams of the earphones, the device is convenient to use to test the influence of various earphones or head models on the earphones, and the telescopic columns 7, the sliding pieces 9 and the telescopic rods 10 have a locking function, so that a user can conveniently fix the earphones after adjusting to the proper lengths; the second loudspeaker 18 can slide by matching the supporting plate 13 with the sliding rail 3, the second loudspeaker 18 can change the height by matching the adjusting knob 19 with the adjusting groove 15, the angle of the second loudspeaker 18 can be changed by rotating the fixing rod 16, and the design can test the influence of the position of a sound source on the microphone of the headset to be tested; after the headset to be tested is fixed, the headset to be tested starts to play audio, the audio collector 12 collects audio data played by the headset to be tested, the second loudspeaker 18 can play audio and is received by a microphone of the headset to be tested, the first loudspeaker 4 can simulate different noises and play the noises in four directions, and the noise reduction capability of the headset to be tested can be tested; this acoustics testing arrangement and host computer connection, through host computer output signal, steerable first speaker 4, audio collector 12 and second speaker work, audio collector 12 and the headphone's that awaits measuring microphone can be with the data input to the host computer of gathering, and the person of facilitating the use carries out the analysis to data.

The utility model discloses an adjust the headphone of slider 9, telescopic link 10 and the different models of flexible post 7 adaptation, also can simulate different head types, the person of facilitating the use tests, but first speaker 4 noise simulation for the ability of making an uproar falls in test headphone, the influence of the sound source of the different distances of second speaker 18 testable to the pickup effect of headphone's microphone, this acoustics testing arrangement possess multiple functions, can save the cost of purchasing multiple equipment.

The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. An acoustic testing apparatus, characterized by: including base (1), first speaker (4), erection column (6), layer board (8), slider (9), installation disc (11), backup pad (13), bracing piece (14), dead lever (16), extension rod (17), second speaker (18), wherein:

the number of the first loudspeakers (4) is more than two, the first loudspeakers (4) are arranged on the upper surface of the base (1), the bottoms of the mounting columns (6) are arranged on the upper surface of the base (1), and the first loudspeakers (4) are distributed along the circumferential direction of the mounting columns (6); the sliding piece (9) is axially and slidably connected with the mounting column (6) through a first sliding mechanism, and the supporting plate (8) is axially and slidably connected with the sliding piece (9) through a second sliding mechanism; the mounting disc (11) is in radial sliding connection with the sliding piece (9) through a third sliding mechanism; the supporting plate (13) is connected with the base (1) in a sliding mode through a fourth sliding mechanism, and the supporting plate (13) slides circumferentially around the mounting column (6); the support rod (14) is installed on the support plate (13), one end of the fixing rod (16) is axially and slidably connected with the support rod (14) through a fifth sliding mechanism, the other end of the fixing rod is fixedly connected with the extension rod (17), and the second loudspeaker (18) is installed on the extension rod (17).

2. The acoustic testing apparatus of claim 1, wherein: the first sliding mechanism comprises a mounting groove (2) and a first sliding block (21), the mounting groove (2) is arranged in the axial direction of the mounting column (6), the first sliding block (21) is arranged on the sliding part (9), the first sliding block (21) is arranged in the sliding groove (20), and the first sliding block (21) is connected with the sliding groove (20) in a sliding mode.

3. The acoustic testing apparatus of claim 2, wherein: the second sliding mechanism comprises a telescopic hole II and a telescopic column (7), the telescopic hole II is arranged in the axial direction of the mounting column (6), one end of the telescopic column (7) extends into the telescopic hole II, and the other end of the telescopic column is fixedly connected with the supporting plate (8).

4. The acoustic testing apparatus of claim 3, wherein: the third sliding mechanism comprises a third telescopic pipe and a telescopic rod (10), one end of the telescopic rod (10) extends into the third telescopic pipe, and the other end of the telescopic rod is fixedly connected with the mounting disc (11).

5. The acoustic testing apparatus of claim 4, wherein: the fourth sliding mechanism comprises a sliding rail (3) and a fourth sliding block (22), the sliding rail (3) is arranged on the base (1), and the sliding rail (3) is arranged circumferentially around the mounting column (6); the fourth sliding block (22) is connected with the sliding rail (3) in a sliding mode, and the fourth sliding block (22) is fixedly connected with the supporting plate (13).

6. The acoustic testing apparatus of claim 5, wherein: the fifth sliding mechanism comprises an adjusting groove (15) and an adjusting knob (19), the adjusting groove (15) is arranged in the axial direction of the fixing rod (16), the fixing rod (16) is in sliding connection with the adjusting groove (15), and the adjusting knob (19) penetrates through the adjusting groove (15) and is in threaded connection with the fixing rod (16).

7. The acoustic testing apparatus of claim 6, wherein: the positioning device comprises a first positioning mechanism, a second positioning mechanism, a third positioning mechanism and a fourth positioning mechanism, wherein the first positioning mechanism comprises a first positioning screw hole and a first positioning screw, the first positioning screw hole is formed in a sliding part (9), the first positioning screw hole penetrates through a connecting surface between the sliding part (9) and a mounting column (6), and the first positioning screw is in threaded connection with the first positioning screw hole; the second positioning mechanism comprises a row of second positioning screw holes and second positioning screws, the second positioning screw holes are axially arranged on the telescopic column (7), and the second positioning screws are in threaded connection with one of the second positioning screw holes; the third positioning mechanism comprises a third positioning screw hole and a third positioning screw, the third positioning screw hole is formed in the third telescopic pipe, the third positioning screw hole penetrates through a connecting surface between the third telescopic pipe and the telescopic rod (10), and the third positioning screw is in threaded connection with the third positioning screw hole; the fourth positioning mechanism comprises a fourth positioning screw hole and a fourth positioning screw, the fourth positioning screw hole is formed in the supporting plate (13), the fourth positioning screw hole penetrates through the connecting surface between the supporting plate (13) and the base (1), and the fourth positioning screw is in threaded connection with the fourth positioning screw hole.

8. The acoustic testing apparatus of claim 7, wherein: be provided with mounting groove (2) on the upper surface of base (1), the bottom of erection column (6) is provided with mounting panel (5), mounting column (6) are installed on mounting groove (2) through mounting panel (5).

9. The acoustic testing apparatus of claim 8, wherein: and a rubber strip (23) is arranged on the lower surface of the base (1).

10. The acoustic testing apparatus of claim 9, wherein: the first loudspeakers (4) are uniformly distributed along the circumferential direction of the mounting column (6).