CN217486649U - Noise reduction earphone electroacoustic test equipment - Google Patents
Noise reduction earphone electroacoustic test equipment Download PDFInfo
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- CN217486649U CN217486649U CN202221492054.0U CN202221492054U CN217486649U CN 217486649 U CN217486649 U CN 217486649U CN 202221492054 U CN202221492054 U CN 202221492054U CN 217486649 U CN217486649 U CN 217486649U
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Abstract
The utility model relates to an electroacoustic test equipment technical field especially relates to an earphone electroacoustic test equipment of making an uproar falls. The technical scheme comprises the following steps: the workbench is provided with a servo motor and a guide rail on the upper surface, and the guide rail is positioned on one side of the servo motor. The utility model discloses a servo motor switches on external power supply, servo motor's output shaft passes through shaft coupling A and is connected with the lead screw, servo motor drives the lead screw when rotating, the thread bush removes on the lead screw, the fixed plate that the thread bush is connected removes on the guide rail through the slider, through the removal of fixed plate, the earphone body of fixed plate top carries out the displacement thereupon, speaker A takes place for the noise and the noise takes place speaker B switches on outside power, take place the noise that speaker A and noise take place speaker B and send through the noise and conveniently test out the intensity of making an uproar when different positions of earphone body.
Description
Technical Field
The utility model relates to an electroacoustic test equipment technical field specifically is a noise reduction earphone electroacoustic test equipment.
Background
The earphone is a pair of conversion units which receive the electric signals from the media player or receiver and convert them into audible sound waves by using a speaker near the ear. The earphone can be separated from the media player, can be connected by only one plug, can listen to the sound independently without influencing other people, can isolate the sound of the surrounding environment, and is very helpful for people who use the earphone in a noisy environment such as a recording studio, a bar, a journey, sports and the like. The earphone is originally used for telephone and radio, but with the prevalence of portable electronic devices, the earphone is often used for mobile phones, walkmans, radios, portable electronic games, digital audio players, and the like.
Through retrieval, patent publication No. CN213186559U3 discloses an electroacoustic test device for a noise reduction earphone, which comprises a sound insulation box body, an artificial mouth, a left artificial ear, a right artificial ear, a sliding seat and a noise generation loudspeaker, wherein the artificial mouth, the left artificial ear, the right artificial ear, the sliding seat and the noise generation loudspeaker are arranged in the sound insulation box body; the left artificial ear and the right artificial ear are arranged on the sliding seat in a mirror image manner; the two noise generation loudspeakers are positioned on the same straight line in the vertical direction and are respectively arranged at the top and the bottom of the sound insulation box body; the device also comprises a power assembly for driving the sliding seat to slide.
The existing electroacoustic test equipment for the noise reduction earphone has the following defects: the electroacoustic test equipment of the existing noise reduction earphone cannot test the noise reduction capability of the earphone at different positions, and the noise reduction capability of the test earphone has the defects of certain limitation and low accuracy, so certain improvement is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a make an uproar earphone electroacoustic test equipment falls to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an earphone electroacoustic test equipment of making an uproar falls, includes the workstation, surface mounting has servo motor and guide rail on the workstation, and the guide rail is located servo motor one side, surface mounting has the slider on the guide rail, surface mounting has the fixed plate on the slider, surface mounting has driving motor on the fixed plate, driving motor's output shaft passes through shaft coupling B and is connected with the rotation axis, the rotor plate is installed to the rotation axis other end, surface mounting has the supporting shoe on the rotor plate, fixed ear is installed to workstation upper surface one side, servo motor's output shaft passes through shaft coupling A and is connected with the lead screw, and the lead screw other end passes the bearing on the fixed ear, workstation upper surface one side is installed the noise and is taken place speaker A, and the noise takes place speaker A and is located servo motor one side.
An external power supply is connected through a servo motor, an output shaft of the servo motor is connected with a lead screw through a coupler A, one end of the lead screw penetrates through a bearing on a fixed lug, the lead screw is meshed with a threaded hole in a threaded sleeve through external threads on the outer wall, the threaded sleeve is connected with a fixed plate, the fixed plate is connected with a sliding block, when the servo motor drives the lead screw to rotate, the threaded sleeve moves on the lead screw, the fixed plate connected with the threaded sleeve moves on a guide rail through the sliding block, an earphone body above the fixed plate moves along with the fixed plate through the movement of the fixed plate, a noise generation loudspeaker A and a noise generation loudspeaker B are connected with the external power supply, the noise reduction strength of the earphone body at different positions can be conveniently tested through the noise emitted by the noise generation loudspeaker A and the noise generation loudspeaker B, the driving motor is connected with the external power supply, and the output shaft of the driving motor is connected with a rotating plate through a coupler B, the rotor plate is connected with the supporting shoe to when making driving motor drive the supporting shoe rotation, the earphone body is rotatory thereupon, through the rotation of earphone body, conveniently tests out the earphone body at the intensity of making an uproar that falls of different angles.
Preferably, the outer wall of the screw rod is provided with a threaded sleeve, the threaded sleeve is positioned on the lower surface of the fixing plate, and the screw rod is meshed and connected with a threaded hole in the threaded sleeve through an external thread on the outer wall. Through the meshing connection between thread bush and the lead screw, when the lead screw was rotatory, the thread bush removed thereupon and made things convenient for earphone body displacement to test the intensity of making an uproar that falls.
Preferably, through welded fastening between fixed plate and the thread bush, surface mounting has the sound-proof housing on the workstation, sealing door is installed to sound-proof housing outer wall one side, the handle is installed to the terminal surface before the sealing door. Fixed plate and thread bush welding make the degree of stability of being connected between fixed plate and the thread bush high, through the convenient isolated outside noise of sound-proof housing, increased the earphone body and fallen the accuracy of making an uproar test.
Preferably, an L-shaped supporting plate is installed on one side of the upper surface of the workbench, and a noise generation loudspeaker B is installed on one side of the outer wall of the L-shaped supporting plate. When the loudspeaker B is powered on to work through noise, the noise reduction capability of the earphone body is conveniently tested.
Preferably, support columns are installed on two sides of the lower surface of the workbench. The workbench is conveniently supported through the supporting columns.
Preferably, the upper surface of the supporting block is provided with an earphone body. The earphone body is conveniently placed through the supporting block.
Compared with the prior art, the beneficial effects of the utility model are that: an external power supply is connected through a servo motor, an output shaft of the servo motor is connected with a screw rod through a coupler A, one end of the screw rod penetrates through a bearing on a fixed lug, the screw rod is meshed and connected with a threaded hole in a threaded sleeve through external threads on the outer wall, the threaded sleeve is connected with a fixed plate, the fixed plate is connected with a sliding block, when the servo motor drives the screw rod to rotate, the threaded sleeve moves on the screw rod, the fixed plate connected with the threaded sleeve moves on a guide rail through the sliding block, an earphone body above the fixed plate moves along with the fixed plate through the movement of the fixed plate, a noise generation loudspeaker A and a noise generation loudspeaker B are connected with the external power supply, the noise reduction strength of the earphone body at different positions can be conveniently tested through the noise emitted by the noise generation loudspeaker A and the noise generation loudspeaker B, the driving motor is connected with the external power supply, and the output shaft of the driving motor is connected with a rotating plate through a coupler B, the rotor plate is connected with the supporting shoe to when making driving motor drive the supporting shoe rotatory, the earphone body is rotatory thereupon, through the rotation of earphone body, conveniently tests out the earphone body at the intensity of making an uproar of falling of different angles.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the present invention without a soundproof cover;
fig. 3 is a front view of the present invention.
In the figure: 1. a sound-proof housing; 2. a work table; 3. a support pillar; 4. a sealing door; 5. a handle; 6. a noise generating speaker A; 7. a servo motor; 8. a coupler A; 9. a drive motor; 10. a support block; 11. an earphone body; 12. a rotating plate; 13. an L-shaped support plate; 14. a noise generating speaker B; 15. a screw rod; 16. fixing the ear; 17. a threaded sleeve; 18. a guide rail; 19. a fixing plate; 20. a slider; 21. a coupler B; 22. a rotating shaft.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.
Example one
As shown in figures 1-3, the utility model provides a noise reduction earphone electroacoustic test device, which comprises a workbench 2, a servo motor 7 and a guide rail 18 are arranged on the upper surface of the workbench 2, and the guide rail 18 is positioned at one side of the servo motor 7, the upper surface of the guide rail 18 is provided with a slide block 20, the upper surface of the slide block 20 is provided with a fixed plate 19, the upper surface of the fixed plate 19 is provided with a driving motor 9, the output shaft of the driving motor 9 is connected with a rotating shaft 22 through a coupling B21, the other end of the rotating shaft 22 is provided with a rotating plate 12, the upper surface of the rotating plate 12 is provided with a supporting block 10, one side of the upper surface of the workbench 2 is provided with a fixing lug 16, the output shaft of the servo motor 7 is connected with a screw rod 15 through a coupling A8, and the other end of the screw rod 15 passes through a bearing on the fixed lug 16, a noise generation loudspeaker A6 is installed on one side of the upper surface of the workbench 2, and the noise generation loudspeaker A6 is positioned on one side of the servo motor 7.
The working principle of the highway bridge construction cofferdam device based on the first embodiment is as follows: an external power supply is connected through a servo motor 7, an output shaft of the servo motor 7 is connected with a screw rod 15 through a coupler A8, one end of the screw rod 15 penetrates through a bearing on a fixed lug 16, the screw rod 15 is meshed with a threaded hole on a threaded sleeve 17 through external threads on an outer wall, the threaded sleeve 17 is connected with a fixed plate 19, the fixed plate 19 is connected with a sliding block 20, when the servo motor 7 drives the screw rod 15 to rotate, the threaded sleeve 17 moves on the screw rod 15, the fixed plate 19 connected with the threaded sleeve 17 moves on a guide rail 18 through the sliding block 20, an earphone body 11 above the fixed plate 19 moves along with the threaded sleeve, a noise generation loudspeaker A6 and a noise generation loudspeaker B14 are connected with the external power supply, noise emitted by the noise generation loudspeaker A6 and the noise generation loudspeaker B14 facilitates testing the noise reduction strength of the earphone body 11 at different positions, driving motor 9 switches on external power supply, and driving motor 9's output shaft passes through shaft coupling B21 and is connected with rotor plate 12, and rotor plate 12 is connected with supporting shoe 10 to when making driving motor 9 drive supporting shoe 10 rotatory, earphone body 11 is rotatory along with it, through earphone body 11's rotation, conveniently tests out earphone body 11 at the intensity of making an uproar of falling of different angles.
Example two
As shown in fig. 1-3, the utility model provides a noise reduction earphone electroacoustic test equipment, compare in embodiment one, this embodiment still includes: install thread bush 17 on the 15 outer walls of lead screw, and thread bush 17 is located 19 lower surfaces of fixed plate, the screw hole meshing connection on external screw thread and the thread bush 17 on the lead screw 15 through the outer wall, pass through welded fastening between fixed plate 19 and the thread bush 17, 2 upper surface mounting of workstation has sound-proof housing 1, sealing door 4 is installed to 1 outer wall one side of sound-proof housing, the terminal surface installs handle 5 before the sealing door 4, L type backup pad 13 is installed to 2 upper surface one sides of workstation, 13 outer wall one side of L type backup pad is installed the noise and is taken place speaker B14, support column 3 is all installed to 2 lower surface both sides of workstation, surface mounting has earphone body 11 on the support block 10.
In this embodiment, be connected through the meshing between thread bush 17 and the lead screw 15, when lead screw 15 is rotatory, thread bush 17 removes the intensity of making things convenient for earphone body 11 displacement to test to fall and making an uproar thereupon, fixed plate 19 and thread bush 17 welding, the degree of stability of being connected between messenger's fixed plate 19 and the thread bush 17 is high, through the convenient isolated outside noise of sound-proof housing 1, the accuracy of the test of making an uproar falls in earphone body 11 has been increased, take place speaker B14 switch on during operation through the noise, conveniently test earphone body 11 fall the ability of making an uproar, conveniently support workstation 2 through support column 3, conveniently place earphone body 11 through supporting shoe 10.
The above embodiments are merely some preferred embodiments of the present invention, and those skilled in the art can make various alternative modifications and combinations to the above embodiments based on the technical solution of the present invention and the related teachings of the above embodiments.
Claims (6)
1. The utility model provides a noise reduction earphone electroacoustic test equipment, includes workstation (2), its characterized in that: the automatic feeding device is characterized in that a servo motor (7) and a guide rail (18) are arranged on the upper surface of the workbench (2), the guide rail (18) is located on one side of the servo motor (7), a slider (20) is arranged on the upper surface of the guide rail (18), a fixing plate (19) is arranged on the upper surface of the slider (20), a driving motor (9) is arranged on the upper surface of the fixing plate (19), an output shaft of the driving motor (9) is connected with a rotating shaft (22) through a coupler B (21), a rotating plate (12) is arranged on the other end of the rotating shaft (22), a supporting block (10) is arranged on the upper surface of the rotating plate (12), a fixing lug (16) is arranged on one side of the upper surface of the workbench (2), an output shaft of the servo motor (7) is connected with a screw rod (15) through a coupler A (8), and the other end of the screw rod (15) penetrates through a bearing on the fixing lug (16), and a noise generation loudspeaker A (6) is installed on one side of the upper surface of the workbench (2), and the noise generation loudspeaker A (6) is positioned on one side of the servo motor (7).
2. The electro-acoustic testing device of a noise reducing headphone of claim 1, characterized by: the outer wall of the screw rod (15) is provided with a threaded sleeve (17), the threaded sleeve (17) is located on the lower surface of the fixing plate (19), and the screw rod (15) is meshed and connected with a threaded hole in the threaded sleeve (17) through external threads on the outer wall.
3. The electro-acoustic testing device of a noise reducing headphone of claim 2, characterized by: fixed plate (19) and thread bush (17) between through welded fastening, surface mounting has sound-proof housing (1) on workstation (2), sealing door (4) are installed to sound-proof housing (1) outer wall one side, handle (5) are installed to the terminal surface before sealing door (4).
4. The electro-acoustic testing device of a noise reducing headphone of claim 1, characterized by: l type backup pad (13) are installed to workstation (2) upper surface one side, speaker B (14) take place in the noise is installed to L type backup pad (13) outer wall one side.
5. The electro-acoustic testing device of a noise reducing headphone of claim 1, characterized by: support columns (3) are installed on two sides of the lower surface of the workbench (2).
6. The electro-acoustic testing device of a noise reducing headphone of claim 1, characterized by: an earphone body (11) is arranged on the upper surface of the supporting block (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221492054.0U CN217486649U (en) | 2022-06-15 | 2022-06-15 | Noise reduction earphone electroacoustic test equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221492054.0U CN217486649U (en) | 2022-06-15 | 2022-06-15 | Noise reduction earphone electroacoustic test equipment |
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| CN217486649U true CN217486649U (en) | 2022-09-23 |
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| CN202221492054.0U Active CN217486649U (en) | 2022-06-15 | 2022-06-15 | Noise reduction earphone electroacoustic test equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118523542A (en) * | 2024-07-19 | 2024-08-20 | 深圳市中冀联合技术股份有限公司 | Electric movement assembly of drawer type shielding box |
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2022
- 2022-06-15 CN CN202221492054.0U patent/CN217486649U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118523542A (en) * | 2024-07-19 | 2024-08-20 | 深圳市中冀联合技术股份有限公司 | Electric movement assembly of drawer type shielding box |
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