A detection device for loudspeaker production

Abstract

This utility model discloses a testing device for loudspeaker production, comprising a housing, a cover plate slidably connected to the inner surface of the housing near its upper top, a handle fixedly connected to the outer surface of the cover plate, a microphone fixedly connected to the middle of the cover plate, a decibel meter fixedly connected to the upper surface of the microphone, an inner shell fixedly connected inside the housing, a lifting device inside the inner shell, and a clamping device inside the inner shell. With this structure, the clamping device clamps and fixes the loudspeaker to be tested, and the lifting device moves the clamping device up and down, bringing the fixed loudspeaker closer to the microphone. The microphone, in conjunction with the decibel meter, detects whether the loudspeaker can produce sound, thus solving the problem of frequently changing clamps for loudspeakers of different shapes or sizes.

Description

Technical Field

[0001] This utility model relates to the field of loudspeaker testing technology, specifically a testing device for loudspeaker production. Background Technology

[0002] A loudspeaker, commonly known as a "horn," is a very common electroacoustic transducer found in all sound-producing electronic and electrical equipment. Generally, a loudspeaker consists of a magnet, frame, centering support, and a cone-shaped diaphragm. It is a transducer that converts electrical signals into sound signals, and the performance of a loudspeaker greatly affects sound quality. The loudspeaker is one of the weakest components in audio equipment, yet it is also one of the most important components for achieving optimal sound effects. There are many types of loudspeakers, and their prices vary greatly. Audio electrical energy, through electromagnetic, piezoelectric, or electrostatic effects, causes the cone or diaphragm to vibrate and resonate with the surrounding air, producing sound. Loudspeaker testing mainly refers to inspecting loudspeakers at the production site to test their ability to produce sound.

[0003] Existing testing devices for loudspeaker production require the loudspeakers to be fixed in place before testing. However, most of these devices can only fix one type of loudspeaker. If there are loudspeakers of different shapes or sizes, the fixtures used for fixing them need to be changed, which is time-consuming and labor-intensive. To address this, we provide a testing device for loudspeaker production. Summary of the Invention

[0004] This utility model provides a testing device for loudspeaker production. It can clamp and fix the loudspeaker to be tested through a clamping device, and raise and lower the clamping device through a lifting device to bring the fixed loudspeaker closer to the microphone. The microphone, together with a decibel meter, detects whether the loudspeaker can produce sound. This solves the problem of having to frequently switch clamps for loudspeakers of different shapes or sizes.

[0005] To achieve the above objectives, a testing device for loudspeaker production is provided, comprising a housing, a cover plate slidably connected to the inner surface of the housing near the top, a handle fixedly connected to the outer surface of the front side of the cover plate, a microphone fixedly connected to the middle of the cover plate, a decibel meter fixedly connected to the upper surface of the microphone, an inner shell fixedly connected inside the housing, a lifting device and a clamping device provided inside the inner shell.

[0006] According to the aforementioned testing device for loudspeaker production, the lifting device includes a chassis, a first lead screw, a disc, and a handle, with the chassis slidably connected inside the inner shell.

[0007] According to the aforementioned testing device for horn production, the first lead screw is rotatably connected to the upper surface of the bottom of the inner shell, and the chassis is threadedly connected to the outer surface of the first lead screw.

[0008] According to the aforementioned testing device for horn production, the disc is fixedly connected to the upper end of the first lead screw, and the handle is fixedly connected to the upper surface of the disc near its edge.

[0009] According to the aforementioned testing device for speaker production, the clamping device includes a turntable, a second lead screw, a fixed block, a connecting block, a moving block, a limiting block, a clamping block, a spring, and a baffle, wherein the turntable is fixedly connected to one end of the second lead screw.

[0010] According to the aforementioned testing device for speaker production, the other end of the second lead screw is rotatably connected to the inner surface of the baffle near the bottom end, and the second lead screw is rotatably connected inside the fixed block.

[0011] According to the aforementioned testing device for horn production, the fixing block is fixedly connected to the upper surface of the chassis, the connecting block is fixedly connected to the outer surface of the front side of the moving block, the moving block is threadedly connected to the outer surface of the second lead screw, and the limiting block is fixedly connected to the outer surface of the rear side of the connecting block.

[0012] According to the aforementioned testing device for horn production, the clamping block is slidably connected inside the moving block, the clamping block is slidably connected inside the limiting block, one end of the spring is fixedly connected to the outer surface of the front side of the clamping block, the other end of the spring is fixedly connected to the inner surface of the limiting block, and the baffle is fixedly connected to the upper surface of the chassis.

[0013] The beneficial effects of this utility model are as follows: The clamping device clamps and fixes the speaker to be tested, and the lifting device drives the clamping device to rise and fall, so that the fixed speaker is closer to the microphone. The microphone, together with the decibel meter, detects whether the speaker can produce sound, thereby solving the problem of frequently changing clamps for speakers of different shapes or sizes.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a schematic diagram of the overall structure of a testing device for loudspeaker production according to the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of a testing device for loudspeaker production according to the present invention;

[0018] Figure 3 This is a schematic diagram of the lifting device structure of a testing device for loudspeaker production according to this utility model;

[0019] Figure 4 This is a schematic diagram of the clamping device structure of a testing device for loudspeaker production according to this utility model. Figure 1 ;

[0020] Figure 5 This is a schematic diagram of the clamping device structure of a testing device for loudspeaker production according to this utility model. Figure 2 ;

[0021] Figure 6 This is an enlarged view of point A of a testing device for loudspeaker production according to this utility model.

[0022] Legend:

[0023] 1. Outer shell; 2. Cover plate; 3. Handle; 4. Decibels; 5. Microphone; 6. Inner shell; 7. Lifting device; 701. Chassis; 702. First lead screw; 703. Disc; 704. Handle; 8. Clamping device; 801. Turntable; 802. Second lead screw; 803. Fixing block; 804. Connecting block; 805. Moving block; 806. Limiting block; 807. Clamping block; 808. Spring; 809. Baffle. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] Reference Figures 1 to 6 This utility model discloses a testing device for loudspeaker production, comprising a housing 1, a cover plate 2 slidably connected to the inner surface of the housing 1 near its upper top, a handle 3 fixedly connected to the outer surface of the front side of the cover plate 2, a microphone 5 fixedly connected to the middle of the cover plate 2, a decibel meter 4 fixedly connected to the upper surface of the microphone 5, an inner shell 6 fixedly connected inside the housing 1, a lifting device 7 and a clamping device 8 provided inside the inner shell 6, and a groove provided on the upper inner surface of the housing 1 to cooperate with the cover plate 2, allowing it to slide. The housing 1 is made of cement fiberboard with rubber filling inside, making it soundproof and not affected by external sounds during testing. The cover plate 2 is made of gypsum board with rubber filling inside. The outer surface of the microphone 5 is wrapped with sponge. The decibel meter 4 is a product of the Shendawei brand, and the inner shell 6 is made of stainless steel.

[0026] The clamping device 8 includes a turntable 801, a second lead screw 802, a fixing block 803, a connecting block 804, a moving block 805, a limiting block 806, a clamping block 807, a spring 808, and a baffle 809. The turntable 801 is fixedly connected to one end of the second lead screw 802, and the other end of the second lead screw 802 is rotatably connected to the inner surface of the baffle 809 near its bottom end. The second lead screw 802 is rotatably connected inside the fixing block 803, and the fixing block 803 is fixedly connected to the upper surface of the chassis 701. The connecting block 804 is fixedly connected to the outer surface of the front side of the moving block 805, and the moving block 805 is threaded... Connected to the outer surface of the second lead screw 802, the limiting block 806 is fixedly connected to the rear outer surface of the connecting block 804, the clamping block 807 is slidably connected inside the moving block 805, and the clamping block 807 is slidably connected inside the limiting block 806. One end of the spring 808 is fixedly connected to the front outer surface of the clamping block 807, and the other end of the spring 808 is fixedly connected to the inner surface of the limiting block 806. The baffle 809 is fixedly connected to the upper surface of the chassis 701. The clamping block 807 and the baffle 809 are made of rubber and have sponge filling on their surfaces to protect the outer surface of the horn from damage when it is clamped.

[0027] The lifting device 7 includes a chassis 701, a first lead screw 702, a disc 703, and a handle 704. The chassis 701 is slidably connected inside the inner shell 6. The first lead screw 702 is rotatably connected to the upper surface of the bottom of the inner shell 6. The chassis 701 is threadedly connected to the outer surface of the first lead screw 702. The disc 703 is fixedly connected to the upper end of the first lead screw 702. The handle 704 is fixedly connected to the upper surface of the disc 703 near the edge.

[0028] Working principle: Pull the handle 3 to open the cover 2, place the speaker to be tested with the sound-producing part facing upwards in the clamping device 8, rotate the turntable 801 to drive the second lead screw 802 to rotate, and the rotation of the second lead screw 802 drives the moving block 805 to move. When part of the clamping block 807 touches the speaker to be tested, it will slide into the limit block 806 under the action of the spring 808. At this time, continue to rotate the turntable 801 until it can no longer rotate, and the speaker can be fixed. Then, rotate the disc 703 to drive the first lead screw 702 to rotate. The rotation of the first lead screw 702 drives the base 701 to move, bringing the speaker closer to the microphone 5. Then, turn on the speaker switch, pull the cover 2, turn on the decibel meter 4 switch, and the staff can observe the digital display on the decibel meter 4 to know whether the speaker can produce sound normally.

[0029] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A detection device for horn production, characterized by, The device includes an outer shell (1), a cover plate (2) is slidably connected to the inner surface of the outer shell (1) near the top, a handle (3) is fixedly connected to the outer surface of the front side of the cover plate (2), a microphone (5) is fixedly connected to the middle position of the cover plate (2), a decibel meter (4) is fixedly connected to the upper surface of the microphone (5), an inner shell (6) is fixedly connected inside the outer shell (1), a lifting device (7) is provided inside the inner shell (6), and a clamping device (8) is provided inside the inner shell (6).

2. The detection device for a loudspeaker production according to claim 1, characterized in that, The lifting device (7) includes a chassis (701), a first lead screw (702), a disc (703) and a handle (704), wherein the chassis (701) is slidably connected inside the inner shell (6).

3. The detection device for a loudspeaker production according to claim 2, characterized in that, The first lead screw (702) is rotatably connected to the upper surface of the bottom of the inner shell (6), and the chassis (701) is threadedly connected to the outer surface of the first lead screw (702).

4. The detection device for a loudspeaker production according to claim 2, characterized in that, The disc (703) is fixedly connected to the upper end of the first lead screw (702), and the handle (704) is fixedly connected to the upper surface of the disc (703) near the edge.

5. The detection device for a loudspeaker production according to claim 1, characterized in that, The clamping device (8) includes a turntable (801), a second lead screw (802), a fixing block (803), a connecting block (804), a moving block (805), a limiting block (806), a clamping block (807), a spring (808), and a baffle (809). The turntable (801) is fixedly connected to one end of the second lead screw (802).

6. The detection device for a loudspeaker production according to claim 5, characterized in that, The other end of the second lead screw (802) is rotatably connected to the inner surface of the baffle (809) near the bottom end, and the second lead screw (802) is rotatably connected inside the fixed block (803).

7. The detection device for a loudspeaker production according to claim 6, characterized in that, The fixing block (803) is fixedly connected to the upper surface of the chassis (701), the connecting block (804) is fixedly connected to the front outer surface of the moving block (805), the moving block (805) is threadedly connected to the outer surface of the second lead screw (802), and the limiting block (806) is fixedly connected to the rear outer surface of the connecting block (804).

8. The detection device for a loudspeaker production according to claim 7, characterized in that, The clamping block (807) is slidably connected inside the moving block (805), the clamping block (807) is slidably connected inside the limiting block (806), one end of the spring (808) is fixedly connected to the outer surface of the front side of the clamping block (807), the other end of the spring (808) is fixedly connected to the inner surface of the limiting block (806), and the baffle (809) is fixedly connected to the upper surface of the chassis (701).

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