Bluetooth connection voice prompter

By designing protective components on the Bluetooth speaker, the problem of foreign objects accumulating in the sound hole is solved, ensuring clear sound quality and extending the lifespan.

CN224385610UActive Publication Date: 2026-06-19SHENZHEN LONGQIANSHU INVESTMENT SERVICES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN LONGQIANSHU INVESTMENT SERVICES CO LTD
Filing Date
2025-04-30
Publication Date
2026-06-19

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Abstract

This utility model relates to the field of Bluetooth voice technology, specifically a Bluetooth-connected voice prompt device, including a speaker, a sound hole, and a protective component. The sound hole is located on the outer arc surface of the speaker. A light guide ring is mounted on the upper surface of the speaker, and the light guide ring is arc-shaped. A button is fixedly mounted on the upper surface of the speaker. The protective component is located on the outer arc surface of the speaker and includes a guide rail. The guide rail is fixedly connected to the left side of the speaker near the sound hole and is rectangular in shape. A guide block is slidably connected to the inner wall of the guide rail, and a baffle is fixedly connected to the side of the guide block away from the guide rail. This utility model, by incorporating the protective component, can effectively prevent dust, hair, debris, and other foreign objects from entering the sound hole. If these foreign objects enter the interior, they may adhere to the speaker diaphragm and other sound-producing components, affecting sound propagation and sound quality, and may even damage the diaphragm, shortening the lifespan of the voice prompt device.
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Description

Technical Field

[0001] This utility model relates to the field of Bluetooth voice technology, and in particular to a Bluetooth-connected voice prompt device. Background Technology

[0002] Since its inception, Bluetooth technology has been continuously developed and improved. From its initial low transmission rate and short-range transmission, it has gradually evolved to today's high transmission rate, long-range transmission, and low power consumption. This makes the connection between Bluetooth devices more stable and faster, providing a technological foundation for Bluetooth voice prompt devices to achieve reliable wireless connection.

[0003] Existing technologies, such as the utility model patent with publication number CN202949530U, disclose a Bluetooth speaker. This patent uses a cabinet, which includes a voice prompt unit, a Bluetooth transceiver, an audio amplifier, and an audio output unit connected in sequence. The voice prompt unit outputs a corresponding voice prompt tone based on the user's input button commands. The voice prompt tone is then transmitted to the audio amplifier via the Bluetooth transceiver for amplification, and finally output through the audio output unit. This improves the practicality and fun of the Bluetooth speaker, achieving a perfect combination of human-computer interaction and solving the problem of inconvenience caused by the lack of voice prompts in existing speakers.

[0004] In existing Bluetooth speakers, such as those mentioned above, the sound hole is exposed to the outside for a long time, making it easy for foreign objects such as dust and hair to enter the voice prompt device through the sound hole. These objects accumulate on the speaker diaphragm, which changes the vibration characteristics of the diaphragm, making the speaker sound blurry and distorted, reducing the clarity and purity of the sound quality. Severe accumulation of foreign objects may even block the sound hole, hindering the propagation of sound, causing the voice prompt to become quieter, or even causing the speaker to be unable to produce sound normally. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the existing technology where, due to the long-term exposure of the sound hole, foreign objects such as dust and hair can easily enter the voice prompt device through the sound hole and accumulate on the speaker diaphragm. This will change the vibration characteristics of the diaphragm, making the speaker sound blurry and distorted, reducing the clarity and purity of the sound quality. Severe accumulation of foreign objects may even block the sound hole, hindering the propagation of sound, causing the voice prompt to become quieter, or even causing the device to be unable to produce sound normally. Therefore, this invention proposes a Bluetooth-connected voice prompt device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a Bluetooth-connected voice prompt device, comprising a speaker, a sound hole, and a protective component. The sound hole is located on the outer arc surface of the speaker. A light guide ring is installed on the upper surface of the speaker. The light guide ring is arc-shaped. A button is fixedly installed on the upper surface of the speaker. The protective component is located on the outer arc surface of the speaker. The protective component includes a guide rail. A guide rail is fixedly connected to the left side of the speaker near the sound hole. The guide rail is rectangular.

[0007] Preferably, a guide block is slidably connected to the inner wall of the guide rail, and a baffle is fixedly connected to the side of the guide block away from the guide rail. The baffle contacts the side surface of the guide rail and the outer arc surface of the speaker. The baffle is arc-shaped. There are two guide blocks, which are symmetrically arranged at the center of the baffle. The guide rail facilitates the guidance of the sliding direction of the guide blocks to ensure that the guide blocks move in a vertical direction.

[0008] Preferably, the baffle has a mounting groove on the side away from the guide rail. The mounting groove is T-shaped. A limit spring is fixedly connected to the inner wall of the mounting groove. A linkage block is fixedly connected to the side of the limit spring away from the mounting groove. The linkage block is rectangular and is slidably connected to the inner wall of the mounting groove. The limit spring facilitates the application of a reset spring force to the linkage block.

[0009] Preferably, a plug is fixedly connected to the side of the linkage block away from the limiting spring. The plug is rectangular and contacts the inner wall of the mounting groove. The plug helps to restrict the position of the baffle to ensure the locking of the baffle in the blocked state.

[0010] Preferably, the baffle has a linkage hole on the outer side near the mounting groove, a connecting rod is fixedly connected to the side of the linkage block near the linkage hole, and a pull block is fixedly connected to the side of the connecting rod away from the linkage block. The pull block is arc-shaped. The baffle facilitates the shielding of the sound hole when the speaker is not in use, preventing dust from entering the speaker from the sound hole and thus increasing the lifespan of the speaker.

[0011] Preferably, a fixed post is fixedly connected to the side of the speaker away from the guide rail. The fixed post is rectangular and contacts the side surface of the baffle. A first limiting hole is provided on the lower part of the fixed post near the baffle, and the first limiting hole is inserted into the insert block. A second limiting hole is provided on the upper middle part of the fixed post near the baffle, and the second limiting hole is inserted into the insert block. The cooperation of the first limiting hole and the second limiting hole facilitates the constraint of different states of the baffle.

[0012] Preferably, a rubber scraper is fixedly installed on the upper surface of the baffle. The rubber scraper is chamfered and contacts the outer arc surface of the speaker and the outer surface of the sound hole. The rubber scraper facilitates the cleaning of dust that may adhere to the surface of the sound hole when the baffle is moved.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] In this utility model, by setting a protective component, when the user finishes using the speaker, the user can hold the pull block with one hand and pull it in the direction of the guide rail. The pull moves the linkage block, which then compresses the limit spring. The limit spring deforms under the pressure, which in turn moves the insert block into the mounting groove. Once the insert block is fully in the mounting groove, the position of the baffle is released. Then, the pull block is pulled upward, which moves the baffle upward. As the baffle moves upward, the rubber scraper also comes into contact with the outer surface of the sound hole. The movement and contact can push the dust adhering to the surface of the sound hole upward. At the same time as the baffle moves, the fixing post abuts against the insert block.

[0015] Move until the insert block contacts the second limiting hole. Then the insert block loses its restriction, which in turn loses its restriction on the linkage block. The limiting spring then returns to its original position, causing the insert block to be inserted into the second limiting hole. This allows the baffle to protect the position of the sound hole. By setting up the protective component, it can effectively prevent foreign objects such as dust, hair, and debris from entering the sound hole. If these foreign objects enter the interior, they may adhere to the speaker diaphragm and other sound-producing components, affecting the propagation and sound quality of the sound, and may even cause damage to the diaphragm, shortening the service life of the voice prompt device. Attached Figure Description

[0016] Figure 1 This utility model provides a three-dimensional structural diagram of a Bluetooth-connected voice prompt device;

[0017] Figure 2 This utility model provides a schematic diagram of the structure of a Bluetooth-connected voice prompt device in an obstructed state.

[0018] Figure 3 This utility model provides a schematic diagram of a protective component structure for a Bluetooth-connected voice prompt device;

[0019] Figure 4 This utility model provides a partial structural schematic diagram of a protective component for a Bluetooth-connected voice prompt device;

[0020] Figure 5 This utility model presents a partial structural diagram of a protective component for a Bluetooth-connected voice prompt device.

[0021] Legend:

[0022] 1. Speaker; 2. Sound hole; 3. Light guide ring; 4. Button; 5. Protective components; 51. Guide rail; 52. Guide block; 53. Baffle; 54. Mounting slot; 55. Limiting spring; 56. Linkage block; 57. Insertion block; 58. Linkage hole; 59. Connecting rod; 510. Pull block; 511. Fixing post; 512. First limiting hole; 513. Second limiting hole; 514. Rubber scraper. Detailed Implementation

[0023] Please see Figures 1-5 This utility model provides a technical solution: a Bluetooth-connected voice prompt device, including a speaker 1, a sound hole 2 and a protective component 5. The sound hole 2 is opened on the outer arc surface of the speaker 1. A light guide ring 3 is installed on the upper surface of the speaker 1. The light guide ring 3 is arc-shaped. A button 4 is fixedly installed on the upper surface of the speaker 1. The protective component 5 is set on the outer arc surface of the speaker 1.

[0024] In this embodiment: the protective component 5 includes a guide rail 51. The left side of the speaker 1 near the sound hole 2 is fixedly connected to the guide rail 51, which is rectangular in shape.

[0025] Specifically, a guide block 52 is slidably connected to the inner wall of the guide rail 51. A baffle 53 is fixedly connected to the side of the guide block 52 away from the guide rail 51. The baffle 53 is in contact with the side surface of the guide rail 51 and the outer arc surface of the speaker 1. The baffle 53 is arc-shaped. There are two guide blocks 52, which are located at the center of the baffle 53 and are arranged symmetrically from top to bottom.

[0026] The effect achieved by the above components is that the guide rail 51 facilitates the direction of sliding of the guide block 52, so as to ensure that the guide block 52 moves in a vertical direction.

[0027] Specifically, a mounting groove 54 is provided on the side of the baffle 53 away from the guide rail 51. The mounting groove 54 is T-shaped. A limit spring 55 is fixedly connected to the inner wall of the mounting groove 54. A linkage block 56 is fixedly connected to the side of the limit spring 55 away from the mounting groove 54. The linkage block 56 is rectangular and is slidably connected to the inner wall of the mounting groove 54.

[0028] The effect achieved by the above components is that the limiting spring 55 facilitates the application of a reset spring force to the linkage block 56.

[0029] Specifically, a plug 57 is fixedly connected to the side of the linkage block 56 away from the limit spring 55. The plug 57 is rectangular and contacts the inner wall of the mounting groove 54.

[0030] The effect achieved by the above components is that the position of the baffle 53 can be restricted by the insert 57 to ensure the locking of the baffle 53 in the blocked state.

[0031] Specifically, a linkage hole 58 is provided on the outer side of the baffle 53 near the mounting groove 54, a connecting rod 59 is fixedly connected to the side of the linkage block 56 near the linkage hole 58, and a pull block 510 is fixedly connected to the side of the connecting rod 59 away from the linkage block 56. The pull block 510 is arranged in an arc shape.

[0032] The effect achieved by the above components is that the baffle 53 can cover the sound hole 2 when the speaker 1 is not in use, so as to prevent dust from entering the speaker 1 from the sound hole 2, thereby increasing the service life of the speaker 1.

[0033] Specifically, a fixing post 511 is fixedly connected to the side of the speaker 1 away from the guide rail 51. The fixing post 511 is rectangular and contacts the side surface of the baffle 53. A first limiting hole 512 is opened on the lower side of the fixing post 511 near the baffle 53. The first limiting hole 512 is inserted into the plug block 57. A second limiting hole 513 is opened on the upper middle side of the fixing post 511 near the baffle 53. The second limiting hole is inserted into the plug block 57.

[0034] The effect achieved by the above components is that the cooperation of the first limiting hole 512 and the second limiting hole 513 facilitates the constraint of different states of the baffle 53.

[0035] Specifically, a rubber scraper 514 is fixedly installed on the upper surface of the baffle 53. The rubber scraper 514 is chamfered and contacts the outer arc surface of the speaker 1 and the outer surface of the sound hole 2.

[0036] The effect achieved by the above components is that the rubber scraper 514 facilitates the cleaning of dust that may adhere to the surface of the sound hole 2 when the baffle 53 is moved.

[0037] Working principle: When the user finishes using speaker 1, the user can hold the pull block 510 with one hand and pull it in the direction of guide rail 51. The pull will move the linkage block 56, which will then compress the limit spring 55. The limit spring 55 will deform under the pressure, which will then move the insert block 57 into the mounting groove 54. Once the insert block 57 is fully in the mounting groove 54, the position of the baffle 53 will be unlocked. Then, the user can pull the pull block 510 upward, which will move the baffle 53 upward. As the baffle 53 moves upward, the rubber scraper 514 will also come into contact with the outer surface of the sound hole 2. The movement of the contact will push the dust adhering to the surface of the sound hole 2 upward. At the same time as the baffle 53 moves, the fixing post 511 will abut against the insert block 57.

[0038] Move until the insert 57 contacts the second limiting hole 513. Then the insert 57 loses its restriction, and subsequently loses its restriction on the linkage block 56. Then the limiting spring 55 rebounds and resets, causing the insert 57 to be inserted into the second limiting hole 513. Then the baffle 53 protects the position of the sound hole 2. By setting the protective component 5, it can effectively prevent foreign objects such as dust, hair, and debris from entering the sound hole 2. If these foreign objects enter the interior, they may adhere to the speaker diaphragm and other sound-producing components, affecting the sound propagation and sound quality, and may even cause diaphragm damage, shortening the service life of the voice prompt device.

Claims

1. A Bluetooth connected voice prompter comprising a sound box (1), a sound emitting hole (2) and a protection assembly (5), characterized in that: The sound hole (2) is opened on the outer arc surface of the speaker (1). A light guide ring (3) is installed on the upper surface of the speaker (1). The light guide ring (3) is arc-shaped. A button (4) is fixedly installed on the upper surface of the speaker (1). The protective component (5) is set on the outer arc surface of the speaker (1). The protective component (5) includes a guide rail (51). The left side of the speaker (1) near the sound hole (2) is fixedly connected to the guide rail (51). The guide rail (51) is rectangular.

2. The Bluetooth connection voice prompter according to claim 1, characterized in that: The inner wall of the guide rail (51) is slidably connected to a guide block (52). A baffle (53) is fixedly connected to the side of the guide block (52) away from the guide rail (51). The baffle (53) is in contact with the side surface of the guide rail (51) and the outer arc surface of the speaker (1). The baffle (53) is arc-shaped. There are two guide blocks (52). The two guide blocks (52) are located at the center of the baffle (53) and are arranged symmetrically from top to bottom.

3. A Bluetooth-connected voice prompt device according to claim 2, characterized in that: The baffle (53) has an installation groove (54) on the side away from the guide rail (51). The installation groove (54) is T-shaped. A limit spring (55) is fixedly connected to the inner wall of the installation groove (54). A linkage block (56) is fixedly connected to the side of the limit spring (55) away from the installation groove (54). The linkage block (56) is rectangular and is slidably connected to the inner wall of the installation groove (54).

4. A Bluetooth-connected voice prompt device according to claim 3, characterized in that: A plug (57) is fixedly connected to the side of the linkage block (56) away from the limiting spring (55). The plug (57) is rectangular and contacts the inner wall of the mounting groove (54).

5. A Bluetooth-connected voice prompt device according to claim 3, characterized in that: The baffle (53) has a linkage hole (58) on the outer side near the mounting groove (54). The linkage block (56) is fixedly connected to a connecting rod (59) on the side near the linkage hole (58). The connecting rod (59) is fixedly connected to a pull block (510) on the side away from the linkage block (56). The pull block (510) is arc-shaped.

6. A Bluetooth-connected voice prompt device according to claim 2, characterized in that: The speaker (1) is fixedly connected to a fixed post (511) on the side away from the guide rail (51). The fixed post (511) is rectangular and contacts the side surface of the baffle (53). A first limiting hole (512) is provided on the lower side of the fixed post (511) near the baffle (53). The first limiting hole (512) is inserted into the plug (57). A second limiting hole (513) is provided on the upper middle side of the fixed post (511) near the baffle (53). The second limiting hole (513) is inserted into the plug (57).

7. A Bluetooth-connected voice prompt device according to claim 2, characterized in that: A rubber scraper (514) is fixedly installed on the upper surface of the baffle (53). The rubber scraper (514) is chamfered and contacts the outer arc surface of the speaker (1). The rubber scraper (514) contacts the outer surface of the sound hole (2).

Citation Information

Patent Citations

  • Bluetooth sound equipment

    CN202949530U