Loudspeaker testing device

Abstract

Disclosed in the present invention is a loudspeaker testing device, comprising a box body. Door panels are mounted on the outer side of the box body; one end of each of pull ropes is fixed to the inner side surface of the corresponding door panel, and the other end of the pull rope is wound around a corresponding first bevel gear; one side of the first bevel gear is meshed with a second bevel gear; one end of the second bevel gear is connected to a screw rod; the screw rod is rotatably mounted in a movement groove in an embedded manner; a movable rod is threadedly sleeved on the screw rod; the inner wall of a mounting ring is connected to clamping plates by means of first elastic telescopic rods; vertical plates are vertically mounted in side cavities of the mounting ring in a penetrating manner; upper pressing plates are connected into middle cavities of the vertical plates by means of second elastic telescopic rods; the upper pressing plates are located above the mounting ring; the outer ends of the upper pressing plates are connected to a mounting rod; a microphone is mounted in the middle of the top of the mounting rod; guide seats are fixed to the bottom surface in the box body; movement grooves are formed in the tops of the guide seats; the bottom ends of the vertical plates are placed in the movement grooves; guide rods are fixed to side edges of the bottoms of the vertical plates; the guide rods are located in guide grooves; and the guide grooves are formed in the side walls of the movement grooves. The loudspeaker testing device facilitates the placement / takeout of loudspeakers and the adjustment of the distance between the microphone and loudspeakers of different specifications.

Description

Speaker testing device Technical Field

[0001] The present invention relates to the technical field of acoustic testing, and in particular to a speaker testing device. Background Art

[0002] In the field of acoustics, speakers are commonly used to convert electrical signals into sound signals. During the speaker manufacturing process, it is usually necessary to test the speaker's sound performance. The conventional method is to use a speaker testing device. Most of them are in a sealed box, using a microphone to collect the sound and using an audio analyzer for analysis. However, the existing speaker testing devices have the following problems when used:

[0003] When testing speakers in a cabinet, some speakers are usually selected for testing, including speakers of different specifications. However, existing speaker testing devices are not convenient for stably picking up and testing speakers of different specifications. On the one hand, it is necessary to reach into the cabinet to disassemble and take out the speakers. On the other hand, when using a microphone to collect sound, the heights of speakers of different specifications are also different, resulting in inconsistent distances between the microphone and the speaker, which easily affects the stability of sound collection and thus affects the test effect.

[0004] In view of the above problems, it is urgent to carry out innovative design based on the original speaker testing device. Summary of the Invention

[0005] The purpose of the present invention is to provide a speaker testing device to solve the problem that the existing speaker testing device proposed in the above background technology is not convenient for stably picking up and testing speakers of different specifications. The technical solution of the present invention addresses the technical problem that the existing technical solution is too single and provides a solution that is significantly different from the existing technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a speaker testing device, comprising a box, with a door panel installed on the outer side of the box;

[0007] It further includes a pull rope. One end of the pull rope is fixed to the inner side of the door panel, and the other end of the pull rope is wound around the first bevel gear. The first bevel gear is rotatably installed in the side wall cavity of the box body through a torsion spring in an embedded manner. One side of the first bevel gear meshes with a second bevel gear, and one end of the second bevel gear is connected to a screw rod. The screw rod is rotatably installed in the movable groove in an embedded manner, and the movable groove is opened on the side wall of the box body. A movable rod is sleeved on the screw rod in a threaded manner, and one end of the movable rod is connected to a mounting ring, and the mounting ring is located at the middle position of the box body. A clamping plate is connected to the inner wall of the mounting ring through a first elastic telescopic rod. A vertical plate is vertically and penetratingly installed in the side cavity of the mounting ring, and an upper pressing plate is connected to the middle cavity of the vertical plate through a second elastic telescopic rod, and the upper pressing plate is located above the mounting ring. The outer end of the upper pressing plate is connected to a mounting rod, and a microphone is installed in the middle of the top of the mounting rod;

[0008] A guide seat is fixed to the bottom surface inside the box body, and a moving groove is opened at the top of the guide seat. The bottom end of the vertical plate is placed in the moving groove, and a guide rod is fixed to the side of the bottom of the vertical plate. The guide rod is located in a guide groove, and the guide groove is opened on the side wall of the moving groove;

[0009] A cleaning component is installed on the rear side wall of the box body, and the cleaning component is used for cleaning the microphone.

[0010] Preferably, there are two door panels, and the door panels drive the first bevel gear to rotate through the pull rope.

[0011] Preferably, the movable rod fits and slides in the movable groove through the screw rod, and the movable rod is parallel to the bottom surface of the box body.

[0012] Preferably, the clamping plates are symmetrically arranged in the mounting ring, and the inner sides of the tops of the clamping plates are designed as inclined arc structures.

[0013] Preferably, the vertical plate vertically fits and slides in the side cavity of the mounting ring, and the vertical plate longitudinally fits and slides in the moving groove.

[0014] Preferably, the upper pressing plate and the mounting ring are parallel to each other.

[0015] Preferably, the mounting rod is designed as a "C" - shaped structure with an opening downward, and the microphone on the mounting rod and the mounting ring share the same central axis.

[0016] Preferably, the guide rod longitudinally fits and slides in the guide groove, and the guide groove is designed as an inclined structure, and the height of the guide groove gradually increases from the inside to the outside.

[0017] Preferably, the cleaning assembly includes a guide rod, which is fixed to the rear side wall of the box, and the front end of the guide rod is connected to a cleaning sleeve, and the cleaning sleeve is provided on the microphone, a motor is fixed at the top edge of the cleaning sleeve, and the output end of the motor is connected to a gear roller, the bottom of the gear roller is engaged with a gear sleeve, and the gear sleeve is rotatably installed on the inner wall of the cleaning sleeve, and a cleaning brush is fixed to the inner wall of the gear sleeve.

[0018] Preferably, the height of the cleaning sleeve is smaller than the length of the microphone, and the cleaning sleeve moves longitudinally with the microphone, and the guide rod on the cleaning sleeve is a limited telescopic structure.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention, when the door is opened, the movable rod and the mounting ring are driven to slide outward by the pull rope, the first bevel gear, the second bevel gear and the screw, so that the speaker can be replaced at the door of the box conveniently. At the same time, when the mounting ring drives the vertical plate to move, the upper pressure plate can be driven to move up by the guide seat, the guide rod and the guide groove, so that the speaker can be taken out and installed conveniently without having to put hands into the box for operation. Furthermore, the setting of the inclined arc surface on the top of the two clamping plates, combined with the use of the first elastic telescopic rod, can clamp and center the speakers of different specifications, which has good practicality. After the door panel is closed, the mounting ring is automatically retracted into the box, and the operation is simple.

[0021] 2. This invention clamps speakers of different specifications. After the mounting ring enters the housing, the vertical plate moves longitudinally with it. Cooperating with the guide rod and guide groove, the vertical plate can be moved vertically. This allows the upper pressure plate to cooperate with the second elastic telescopic rod to press the top of the speaker. The upper pressure plate then drives the mounting rod and microphone to move accordingly, allowing the microphone to maintain a constant distance from speakers of different specifications, facilitating stable sound reception and improving detection efficiency.

[0022] 3. When the door panel is opened, the mounting ring extends, causing the microphone to move forward and upward. The cleaning sleeve, driven by the guide rod, only moves forward with it. As a result, the sound-receiving portion of the microphone moves upward and enters the gear sleeve. The motor then drives the gear sleeve to rotate, cleaning the bottom of the microphone and preventing dust accumulation from affecting the sound reception. When the door is closed, the microphone moves downward, allowing the bottom of the microphone to extend out of the gear sleeve, allowing normal sound reception.

[0023] In summary, the present invention only requires conventional door opening and closing operations to facilitate the installation and removal of the speaker. At the same time, while being suitable for fixed installation of speakers of different specifications, it can maintain a constant distance between the microphone and speakers of different specifications, thereby facilitating the stability of sound reception and subsequent detection. At the same time, the automatic cleaning of the bottom of the microphone can reduce the impact of dust on the sound reception effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG1 is a schematic diagram of the front three-dimensional structure of the present invention;

[0025] FIG2 is a schematic diagram of the side structure of the movable rod of the present invention;

[0026] FIG3 is an enlarged structural diagram of point A in FIG2 of the present invention;

[0027] FIG4 is a schematic diagram of the three-dimensional structure of the mounting ring of the present invention;

[0028] FIG5 is an enlarged structural diagram of point B in FIG4 of the present invention;

[0029] FIG6 is a bottom view of the cleaning assembly of the present invention;

[0030] FIG7 is a schematic diagram of the top view of the cleaning assembly of the present invention.

[0031] In the figure: 1. Box body; 2. Door panel; 3. Pull rope; 4. First bevel gear; 5. Second bevel gear; 6. Screw; 7. Movable groove; 8. Movable rod; 9. Mounting ring; 10. First elastic telescopic rod; 11. Clamping plate; 12. Vertical plate; 13. Second elastic telescopic rod; 14. Upper pressure plate; 15. Mounting rod; 16. Microphone; 17. Guide seat; 18. Movable groove; 19. Guide rod; 20. Guide groove; 21. Cleaning assembly; 211. Guide rod; 212. Cleaning sleeve; 213. Motor; 214. Gear roller; 215. Gear sleeve; 216. Cleaning brush. Implementation Method

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Please refer to Figures 1-7. The present invention provides a technical solution: a speaker testing device, a box body 1, a door panel 2, a pull rope 3, a first bevel gear 4, a second bevel gear 5, a screw 6, a movable groove 7, a movable rod 8, a mounting ring 9, a first elastic telescopic rod 10, a splint 11, a vertical plate 12, a second elastic telescopic rod 13, an upper pressure plate 14, a mounting rod 15, a microphone 16, a guide seat 17, a movable groove 18, a guide rod 19, a guide groove 20, a cleaning assembly 21, a guide rod 211, a cleaning sleeve 212, a motor 213, a gear roller 214, a gear sleeve 215 and a cleaning brush 216. Example

[0034] Please refer to FIGS. 1-4, which includes a box body 1, and a door panel 2 is installed on the outer side of the box body 1; one end of a pulling rope 3 is fixed to the inner side surface of the door panel 2, and the other end of the pulling rope 3 is wound around a first bevel gear 4, and the first bevel gear 4 is rotationally installed in the side wall cavity of the box body 1 by a torsion spring in an embedded manner. A second bevel gear 5 is engaged with one side of the first bevel gear 4, and one end of the second bevel gear 5 is connected to a screw rod 6. The screw rod 6 is rotationally installed in an activity groove 7 in an embedded manner, and the activity groove 7 is opened on the side wall of the box body 1. An activity rod 8 is sleeved on the screw rod 6 in a threaded manner, and one end of the activity rod 8 is connected to a mounting ring 9, and the mounting ring 9 is located at the middle position of the box body 1. A clamping plate 11 is connected to the inner wall of the mounting ring 9 through a first elastic telescopic rod 10; there are two door panels 2, and the door panels 2 drive the first bevel gear 4 to rotate through the pulling rope 3; the activity rod 8 slides in the activity groove 7 in a fitting manner through the screw rod 6, and the activity rod 8 is parallel to the bottom surface of the box body 1; the clamping plates 11 are symmetrically arranged in the mounting ring 9, and the inner side of the top of the clamping plate 11 is designed as an inclined arc structure; when opening or closing the door panel 2, it can drive the mounting ring 9 to slide out or slide in, which is convenient for the installation and taking of the speaker on the mounting ring 9; Embodiment

[0035] Please refer to FIGS. 1 and 4-5. A vertical plate 12 is vertically and penetratingly installed in the side cavity of the mounting ring 9, and an upper pressing plate 14 is connected to the middle cavity of the vertical plate 12 through a second elastic telescopic rod 13, and the upper pressing plate 14 is located above the mounting ring 9. The outer end of the upper pressing plate 14 is connected to a mounting rod 15, and a microphone 16 is installed in the middle of the top of the mounting rod 15; a guide seat 17, the guide seat 17 is fixed to the bottom surface inside the box body 1, and a moving groove 18 is opened on the top of the guide seat 17. The bottom end of the vertical plate 12 is placed in the moving groove 18, and a guide rod 19 is fixed to the side of the bottom of the vertical plate 12. The guide rod 19 is located in a guide groove 20, and the guide groove 20 is opened on the side wall of the moving groove 18; the vertical plate 12 slides vertically and in a fitting manner in the side cavity of the mounting ring 9, and the vertical plate 12 slides longitudinally and in a fitting manner in the moving groove 18; the upper pressing plate 14 and the mounting ring 9 are parallel to each other; the mounting rod 15 is designed as a "匚"-shaped structure with an opening downward, and the microphone 16 on the mounting rod 15 and the mounting ring 9 share the same central axis; the guide rod 19 slides longitudinally and in a fitting manner in the guide groove 20, and the guide groove 20 is designed as an inclined structure, and the height of the guide groove 20 gradually increases from the inside to the outside; when opening or closing the door panel 2, the movement of the mounting ring 9 is used to drive the vertical plate 12 to move up and down, and cooperate with the upper pressing plate 14 to contact the top of the speaker, so as to adjust the height of the microphone 16, so that the microphone 16 always maintains a constant distance from the speaker; Embodiment

[0036] Please refer to Figures 6-7. The cleaning component 21 is installed on the rear side wall of the box body 1. The cleaning component 21 is used to clean the microphone 16. The cleaning component 21 includes a guide rod 211. The guide rod 211 is fixed to the rear side wall of the box body 1, and the front end of the guide rod 211 is connected to a cleaning sleeve 212, and the cleaning sleeve 212 is sleeved on the microphone 16. A motor 213 is fixed at the top edge of the cleaning sleeve 212, and the output end of the motor 213 is connected to a gear roller 214. The bottom of the gear roller 214 is engaged with a gear sleeve 215, and the gear sleeve 215 is rotatably mounted on the inner wall of the cleaning sleeve 212, and a cleaning brush 216 is fixed on the inner wall of the gear sleeve 215; the height of the cleaning sleeve 212 is less than the length of the microphone 16, and the cleaning sleeve 212 moves longitudinally with the microphone 16, and the guide rod 211 on the cleaning sleeve 212 is a limited telescopic structure. The cleaning component 21 moves along with the microphone 16 to clean the microphone 16 to avoid affecting the sound reception effect.

[0037] Working principle: When using the speaker testing device, as shown in Figure 1-7, first rotate the door panel 2 to open, and the door panel 2 drives the first bevel gear 4 to rotate through the pull rope 3. The rotation of the first bevel gear 4 drives the screw 6 to rotate in the movable groove 7 through the second bevel gear 5, and then drives the movable rod 8 to slide in the movable groove 7, so that the mounting ring 9 slides to the door position of the box body 1, and the speaker to be tested is placed in the mounting ring 9. The bottom of the speaker contacts the inclined arc surface of the top of the splint 11, so that the splint 11 is forced to move outward, compressing the first elastic telescopic rod 10, fixing and centering the speaker, and electrically connecting the speaker, and then closing the door panel 2. The first bevel gear 4 rotates and resets under the action of the torsion spring, driving the second bevel gear 5 to rotate in the opposite direction, and then drives the mounting ring 9 to reset through the screw 6 and the movable rod 8, and the speaker is put into the box body 1;

[0038] Furthermore, when the mounting ring 9 moves inward, the vertical plate 12 on the mounting ring 9 slides in the movable groove 18 on the guide seat 17, and at the same time, the guide rod 19 on the vertical plate 12 slides in the guide groove 20. Guided by the guide groove 20, the vertical plate 12 moves downward during the inward sliding process, thereby driving the upper pressure plate 14 to move downward. When the bottom of the upper pressure plate 14 contacts the speaker, the upper pressure plate 14 stops moving downward. At this time, the second elastic telescopic rod 13 is compressed, which can keep the upper pressure plate 14 in contact with the top of the speaker, and then the upper pressure plate 14 adjusts the height of the microphone 16 through the mounting rod 15, so that the microphone 16 always maintains a distance from the speaker, thereby improving the sound reception effect of the microphone 16 and cooperating with an external audio analysis instrument to test the speaker;

[0039] When the door is opened to take out the speaker, the movable rod 8 is driven outward by the pull rope 3 and the screw 6, and then the mounting ring 9 is slid to the door position of the box body 1. At this time, the vertical plate 12 is affected by the guide rod 19 and the guide groove 20 and moves upward, so that the mounting rod 15 can finally slide upward, so that the bottom of the microphone 16 on the mounting rod 15 enters the gear sleeve 215. At this time, when the speaker is taken out, the motor 213 can be started. The motor 213 drives the gear sleeve 215 to rotate through the gear roller 214, and the cleaning brush 216 in the gear sleeve 215 cleans the receiving position at the bottom of the microphone 16. When the door is closed, the various components are reset, and the mounting rod 15 drives the microphone 16 to move downward, so that the bottom of the microphone 16 extends out of the gear sleeve 215, which can clean the microphone 16 without affecting the normal use of the microphone 16.

[0040] Any content not described in detail in this specification is prior art known to those skilled in the art. In the description of the present invention, unless otherwise specified, "plurality" means two or more. Terms such as "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," and "tail" indicate positions or relationships based on those shown in the accompanying drawings and are intended solely for ease of description and simplification. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation and are therefore not to be construed as limiting the present invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, unless otherwise specified or limited, the terms "connected" and "connected" are to be understood broadly, meaning, for example, fixedly connected, detachably connected, or integrally connected; mechanically connected, electrically connected; directly connected, or indirectly connected through an intermediary. Those skilled in the art will understand the specific meanings of these terms in the present invention on a case-by-case basis.

[0041] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A horn testing device, comprising a box body (1), and a door panel (2) is installed on the outer side of the box body (1); Features: It further includes a pull rope (3), one end of the pull rope (3) is fixed to the inner side surface of the door panel (2), and the other end of the pull rope (3) is wound around a first bevel gear (4), and the first bevel gear (4) is rotationally installed in the side wall cavity of the box body (1) through a torsion spring in an embedded manner. One side of the first bevel gear (4) is engaged with a second bevel gear (5), and one end of the second bevel gear (5) is connected to a screw rod (6). The screw rod (6) is rotationally installed in an embedded manner in a movable groove (7), and the movable groove (7) is opened on the side wall of the box body (1). A movable rod (8) is sleeved on the screw rod (6) in a threaded manner, and one end of the movable rod (8) is connected to a mounting ring (9), and the mounting ring (9) is located at the middle position of the box body (1). A clamping plate (11) is arranged on the inner wall of the mounting ring (9) through a first elastic telescopic rod (10). A vertical plate (12) is installed vertically and penetratingly in the side cavity of the mounting ring (9), and an upper pressing plate (14) is connected to the middle cavity of the vertical plate (12) through a second elastic telescopic rod (13), and the upper pressing plate (14) is located above the mounting ring (9). The outer end of the upper pressing plate (14) is connected to a mounting rod (15), and a microphone (16) is installed in the middle of the top of the mounting rod (15); A guide seat (17), the guide seat (17) is fixed to the bottom surface inside the box body (1), and a moving groove (18) is opened on the top of the guide seat (17). The bottom end of the vertical plate (12) is placed in the moving groove (18), and a guide rod (19) is fixed to the side of the bottom of the vertical plate (12). The guide rod (19) is located in a guide groove (20), and the guide groove (20) is opened on the side wall of the moving groove (18); A cleaning assembly (21), the cleaning assembly (21) is installed on the rear side wall of the box body (1), and the cleaning assembly (21) is used for cleaning the microphone (16).

2. A speaker testing device according to claim 1, characterized in that: There are two door panels (2), and the door panels (2) drive the first bevel gear (4) to rotate through the pull rope (3).

3. A speaker testing device according to claim 1, characterized in that: The movable rod (8) fits and slides in the movable groove (7) through the screw rod (6), and the movable rod (8) is parallel to the bottom surface of the box body (1).

4. A speaker testing device according to claim 1, characterized in that: The clamping plates (11) are symmetrically arranged in the mounting ring (9), and the inner sides of the tops of the clamping plates (11) are designed as inclined arc structures.

5. The speaker testing device according to claim 1, characterized in that: The vertical plate (12) fits and slides vertically in the side cavity of the mounting ring (9), and the vertical plate (12) fits and slides longitudinally in the moving groove (18).

6. A speaker testing device according to claim 1, characterized in that: The upper pressing plate (14) is parallel to the mounting ring (9).

7. A speaker testing device according to claim 1, characterized in that: The mounting rod (15) is designed as a "C"-shaped structure with an opening downward, and the microphone (16) on the mounting rod (15) and the mounting ring (9) share the same central axis.

8. The speaker testing device according to claim 1, characterized in that: The guide rod (19) fits and slides longitudinally in the guide groove (20), and the guide groove (20) is designed as an inclined structure, and the height of the guide groove (20) gradually increases from inside to outside.

9. The speaker testing device according to claim 1, characterized in that: The cleaning assembly (21) comprises a guide rod (211), the guide rod (211) being fixed on the rear side wall of the box body (1), and the front end of the guide rod (211) being connected to a cleaning sleeve (212), and the cleaning sleeve (212) being sleeved on the microphone (16), a motor (213) being fixed at the top edge of the cleaning sleeve (212), and a gear roller (214) being connected to the output end of the motor (213), a gear sleeve (215) being meshed at the bottom of the gear roller (214), and the gear sleeve (215) being rotatably mounted on the inner wall of the cleaning sleeve (212), and a cleaning brush (216) being fixed to the inner wall of the gear sleeve (215).

10. A speaker testing device according to claim 9, characterized in that: The height of the cleaning sleeve (212) is smaller than the length of the microphone (16), and the cleaning sleeve (212) moves longitudinally along with the microphone (16), and the guide rod (211) on the cleaning sleeve (212) is a position-limiting telescopic structure.

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