Loudspeaker waterproof detection device

Abstract

The utility model discloses a waterproof detection device for a loudspeaker, and relates to the technical field of loudspeakers. Comprising a control box, the top of the control box is fixedly connected with a workbench, the top of the workbench is symmetrically connected with guide rails, the workbench is provided with a test tool, the bottom of the test tool is symmetrically connected with sliding tables, the inner walls of the sliding tables are slidably connected with the outer walls of the guide rails, and rectangular grooves are symmetrically formed in the top of the test tool. A circular groove is formed in the top of the testing tool, the circular groove is located between the two rectangular grooves, air holes are formed in the inner wall of the testing tool, and the rectangular grooves are communicated with the circular groove through the air holes. According to the detection device, sufficient drying agents are placed in the rectangular groove, the rectangular groove is sealed through the sealing plate, it is guaranteed that external water vapor cannot enter the rectangular groove, the rectangular groove and the circular groove are communicated through the air holes, it is guaranteed that the circular groove is in a dry state all the time, residual water in the circular groove is effectively prevented from interfering the detection result, and the detection accuracy is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a loudspeaker technical field especially relates to a loudspeaker waterproof detection device. BACKGROUND

[0002] As an important audio output component, the waterproof performance of the loudspeaker is crucial, and the performance of the loudspeaker has a great influence on the sound quality. With the development of electronic products towards miniaturization and multifunction, the requirement for the waterproof performance of the loudspeaker is also increasing. For example, in smart phones, smart watches, wireless earphones and other products, the loudspeaker needs to have good waterproof ability to ensure normal work in various complex environments and avoid problems such as sound quality damage and short circuit failure caused by water ingress.

[0003] The existing detection device adopts an open test environment, which is difficult to completely isolate external water vapor, and water may remain in the detection tank after testing, causing interference to the subsequent detection results, especially in high-precision detection scenarios, there is a large error, and the practicability is poor. Therefore, a loudspeaker waterproof detection device is proposed. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a loudspeaker waterproof detection device, which solves the technical problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a loudspeaker waterproof detection device, comprising a control box, the top of the control box is fixedly connected with a workbench, the top of the workbench is symmetrically connected with guide rails, a test tool is arranged on the workbench, the bottom of the test tool is symmetrically connected with sliding tables, the inner wall of the sliding table is slidably connected with the outer wall of the guide rail, the top of the test tool is symmetrically provided with rectangular grooves, the top of the test tool is provided with a circular groove, the circular groove is located between the two rectangular grooves, air holes are arranged in the inner wall of the test tool, and the rectangular grooves and the circular groove are connected through the air holes.

[0006] The top of the workbench is fixedly connected with a support, the support is located outside the test tool, and a detection mechanism is arranged on the support.

[0007] Preferably, the detection mechanism comprises a guide plate and an air pump, a gas cylinder is fixedly connected to the top of the support, the output end of the gas cylinder is connected with the top surface of the guide plate, a connecting plate is fixedly connected to the bottom of the guide plate, a connecting rod is fixedly connected to the bottom of the connecting plate, a cover is fixedly connected to the lower end of the connecting rod, and the air pump is fixedly connected to the top of the support.

[0008] Preferably, a sealing ring is fixedly connected to the upper surface of the test tool, the sealing ring is located outside the circular groove, and the inner diameter size of the sealing ring is greater than the diameter size of the workbench.

[0009] Preferably, the top of the workbench is fixedly connected with a vertical plate, the top of the workbench is symmetrically connected with positioning blocks, a lead screw is rotatably connected between the two positioning blocks, the rear side wall of the vertical plate is fixedly connected with a servo motor, the output end of the servo motor is connected with the rear end of the lead screw, and the bottom of the test tooling is fixedly connected with a sliding block.

[0010] Preferably, the bottom of the test tooling is symmetrically connected with a drain valve, the drain valve is connected with the rectangular groove, and the rectangular groove is provided with a sealing plate.

[0011] Preferably, the top of the workbench is fixedly connected with an air tightness detector.

[0012] Compared with the related art, the loudspeaker waterproof detection device has the following beneficial effects:

[0013] 1. The loudspeaker waterproof detection device provided by the utility model, in the detection device, sufficient drying agent is placed in the rectangular groove, the rectangular groove is sealed by the sealing plate, so that external water vapor cannot enter, the rectangular groove and the circular groove are connected with each other by the air holes, the circular groove is kept in a dry state, the detection result is not disturbed by residual water in the circular groove, and the detection accuracy is improved.

[0014] 2. The loudspeaker waterproof detection device provided by the utility model judges the sealing and waterproof performance of the loudspeaker by detecting the gas escape condition by the air tightness detector, has high detection efficiency, small error and high practicability, the design of the lead screw and the sliding block enables the test tooling to move forward and backward on the workbench, the loudspeaker is convenient to place and take, and the operation convenience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is another angle whole structure schematic view of the utility model;

[0017] Figure 3 It is a structure schematic view of the servo motor of the utility model;

[0018] Figure 4 It is a structure schematic view of the test tooling of the utility model;

[0019] Figure 5 It is the air tightness detector of the utility model; Figure 2 It is an enlarged view of A in the middle.

[0020] In the figure: 1, control box; 2, workbench; 3, support; 4, vertical plate; 5, positioning block; 6, screw rod; 7, servo motor; 8, sliding block; 9, test tool; 10, guide rail; 11, sliding table; 12, rectangular groove; 13, circular groove; 14, sealing ring; 15, air hole; 16, drain valve; 17, sealing plate; 18, air cylinder; 19, guide plate; 20, connecting plate; 21, connecting rod; 22, cover; 23, air pump; 24, air tightness detector. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Embodiment:

[0023] Please refer to Figures 1-5 The utility model provides a kind of technical solutions: a loudspeaker waterproof detection device, including control box 1, the top of control box 1 is fixedly connected with workbench 2, the top of workbench 2 is symmetrically connected with guide rail 10, test tool 9 is provided on workbench 2, the bottom of test tool 9 is symmetrically connected with sliding table 11, the inner wall of sliding table 11 is slidably connected with the outer wall of guide rail 10, the top of test tool 9 is symmetrically provided with rectangular groove 12, the top of test tool 9 is provided with circular groove 13, circular groove 13 is between two rectangular grooves 12, air hole 15 is provided in the inner wall of test tool 9, rectangular groove 12 and circular groove 13 are communicated by air hole 15, the bottom of test tool 9 is symmetrically connected with drain valve 16, drain valve 16 is communicated with rectangular groove 12, sealing plate 17 is provided on rectangular groove 12;

[0024] When using, sufficient drying agent is added in rectangular groove 12, then sealing plate 17 is tightly covered on rectangular groove 12, to ensure that rectangular groove 12 is completely sealed, rectangular groove 12 and circular groove 13 are kept in communication state by air hole 15, in this process, drying agent plays its hygroscopic property, effectively absorbs moisture, so that circular groove 13 inside remains dry, avoids that water remains in circular groove 13, and produces error influence on loudspeaker waterproof detection result.

[0025] The top of the workbench 2 is fixedly connected with a support 3, the support 3 is located outside the test tooling 9, a detection mechanism is arranged on the support 3, the detection mechanism comprises a guide plate 19 and an air pump 23, the top of the support 3 is fixedly connected with an air cylinder 18, the output end of the air cylinder 18 is connected with the top surface of the guide plate 19, the bottom of the guide plate 19 is fixedly connected with a connecting plate 20, the bottom of the connecting plate 20 is fixedly connected with a connecting rod 21, the lower end of the connecting rod 21 is fixedly connected with a cover 22, the air pump 23 is fixedly connected on the top of the support 3, and the top of the workbench 2 is fixedly connected with an air tightness detector 24.

[0026] The upper surface of the test tooling 9 is fixedly connected with a sealing ring 14, the sealing ring 14 is located outside the circular groove 13, and the inner diameter size of the sealing ring 14 is greater than the diameter size of the workbench 2.

[0027] It should be noted that the bottom of the circular groove 13 is provided with a flow guide hole, the flow guide hole is communicated with the air pump 23, and in the detection process, the flow guide hole can be used to fill the circular groove 13 with gas;

[0028] In use, the guide plate 19 is controlled to move upwards by the air cylinder 18, so that the cover 22 is opened, then the loudspeaker is placed into the circular groove 13, the guide plate 19 is controlled to move downwards by the air cylinder 18, so that the cover 22 is pressed tightly on the outside of the loudspeaker, the sealing property between the cover 22 and the test tooling 9 is improved by the sealing ring 14, so that the gas cannot overflow, in detection, the circular groove 13 is filled with gas by the air pump 23, whether the gas escapes or not is detected by the air tightness detector 24, the sealing performance of the loudspeaker is judged, and whether the waterproof performance of the loudspeaker is qualified is obtained, so that the detection method has high detection efficiency, small error and strong practicability.

[0029] The top of the workbench 2 is fixedly connected with a vertical plate 4, the top of the workbench 2 is symmetrically connected with positioning blocks 5, the two positioning blocks 5 are rotatably connected with a lead screw 6, the rear side wall of the vertical plate 4 is fixedly connected with a servo motor 7, the output end of the servo motor 7 is connected with the rear end of the lead screw 6, and the bottom of the test tooling 9 is fixedly connected with a sliding block 8; the inner wall of the sliding block 8 is threadedly connected with the outer wall of the lead screw 6.

[0030] In the process of placing the loudspeaker, the servo motor 7 is started to drive the lead screw 6 to rotate, the sliding block 8 is driven to move forwards and backwards by the lead screw 6, so that the test tooling 9 can move forwards and backwards on the workbench 2, and the loudspeaker is conveniently taken.

[0031] Working principle: when using, add enough desiccant in the rectangular groove 12, then tightly cover the sealing plate 17 on the rectangular groove 12, ensure that the rectangular groove 12 is completely sealed, make the rectangular groove 12 and the circular groove 13 keep in communication state through the air hole 15, in this process, the desiccant plays its moisture absorption characteristics, effectively absorbs moisture, so that the inside of the circular groove 13 keeps dry, avoid the residual moisture in the circular groove 13, produce error influence to the waterproof detection result of the loudspeaker, through the air cylinder 18 control the upward movement of the guide plate 19, open the cover 22, then put the loudspeaker into the circular groove 13, use the air cylinder 18 control the downward movement of the guide plate 19, make the cover 22 press tightly on the outside of the loudspeaker, through the sealing ring 14 increase the sealing between the cover 22 and the test tool 9, ensure that the gas will not overflow, when detecting, use the air pump 23 to fill the circular groove 13 with gas, through the air tightness detector 24 to detect whether there is gas escaping, judge the sealing performance of the loudspeaker, so as to obtain whether the waterproof performance of the loudspeaker is qualified, this detection mode not only has high detection efficiency, but also has small error, and has strong practicability.

[0032] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A loudspeaker waterproof detection device, comprising a control box (1), characterized in that: The top of the control box (1) is fixedly connected with a workbench (2), the top of the workbench (2) is symmetrically connected with guide rails (10), a test tooling (9) is arranged on the workbench (2), the bottom of the test tooling (9) is symmetrically connected with sliding tables (11), the inner wall of the sliding table (11) is in sliding connection with the outer wall of the guide rail (10), the top of the test tooling (9) is symmetrically provided with rectangular grooves (12), the top of the test tooling (9) is provided with a circular groove (13), the circular groove (13) is located between the two rectangular grooves (12), air holes (15) are arranged in the inner wall of the test tooling (9), and the rectangular grooves (12) and the circular groove (13) are in communication through the air holes (15). The top of the workbench (2) is fixedly connected with a support (3), the support (3) is located outside the test tooling (9), and a detection mechanism is arranged on the support (3).

2. The waterproof detection device for a loudspeaker according to claim 1, characterized in that: The detection mechanism comprises a guide plate (19) and an air pump (23), the top of the support (3) is fixedly connected with an air cylinder (18), the output end of the air cylinder (18) is connected with the top surface of the guide plate (19), the bottom of the guide plate (19) is fixedly connected with a connecting plate (20), the bottom of the connecting plate (20) is fixedly connected with a connecting rod (21), the lower end of the connecting rod (21) is fixedly connected with a cover (22), and the air pump (23) is fixedly connected to the top of the support (3).

3. The waterproof detection device for a speaker according to claim 1, characterized in that: The upper surface of the test tooling (9) is fixedly connected with a sealing ring (14), the sealing ring (14) is located outside the circular groove (13), and the inner diameter size of the sealing ring (14) is greater than the diameter size of the workbench (2).

4. The waterproof detection device for a speaker according to claim 1, characterized in that: The top of the workbench (2) is fixedly connected with a vertical plate (4), the top of the workbench (2) is symmetrically connected with positioning blocks (5), a lead screw (6) is rotatably connected between the two positioning blocks (5), the rear side wall of the vertical plate (4) is fixedly connected with a servo motor (7), the output end of the servo motor (7) is connected with the rear end of the lead screw (6), and the bottom of the test tooling (9) is fixedly connected with a sliding block (8).

5. The loudspeaker waterproof detection device of claim 1, wherein: The bottom of the test tooling (9) is symmetrically connected with a drain valve (16), the drain valve (16) is in communication with the rectangular groove (12), and a sealing plate (17) is arranged on the rectangular groove (12).

6. The loudspeaker waterproof detection device of claim 1, wherein: The top of the workbench (2) is fixedly connected with an air tightness detector (24).

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