A sound protection device

By designing a flip-up component for the speaker protection device and large-diameter wheels, the problem of outdoor speaker equipment being unable to adjust its orientation or tilt has been solved, improving the flexibility and stability of the equipment, and enhancing the user experience and sound quality.

CN224289983UActive Publication Date: 2026-05-26SHENZHEN LETTER FIDELITY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN LETTER FIDELITY TECH CO LTD
Filing Date
2025-05-30
Publication Date
2026-05-26

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Abstract

This utility model discloses a speaker protection device, comprising a slide plate, a speaker body, a locking assembly, a flipping assembly, a first handrail, and two second handrails. Two traveling wheels and two pulleys are fixedly connected to the underside of the slide plate. The locking assembly is used to limit and lock each of the traveling wheels. The first handrail and the two second handrails are all fixedly connected to the slide plate. The flipping assembly is disposed on the slide plate and is used to adjust the sound output direction of the speaker body. The diameter of the traveling wheel 13 is larger than the diameter of the pulley 14. This utility model aims to facilitate user operation, flexibly adjust the channel direction, and improve the usability of the product.
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Description

Technical Field

[0001] This utility model relates to the technical field of concrete production equipment, and in particular to a sound protection device. Background Technology

[0002] The history of audio technology can be traced back to the early 20th century. With the continuous advancement of electrical engineering technology, audio equipment gradually evolved from the earliest mechanical audio devices (such as phonographs) into electrified audio systems. The earliest audio systems consisted of tape recorders, vinyl record players, and simple loudspeakers. With technological development, audio equipment gradually achieved higher sound quality, such as high-fidelity sound and stereo effects, and also realized more complex functions in sound processing. Today, audio equipment has a very wide range of applications, covering multiple scenarios such as home, entertainment, education, and business.

[0003] With the increasing number of outdoor activities, the demand for outdoor audio equipment is also growing. In this environment, speakers not only need high-quality audio performance, but also good portability and adaptability, allowing for easy movement and orientation adjustment to meet different usage needs and environmental challenges. Existing portable outdoor speakers suffer from the inability to adjust their orientation, and because outdoor terrain is often uneven, speakers are prone to tipping over during movement, making it difficult to maintain stable operation. These problems affect the usability of the equipment and reduce the user experience. Utility Model Content

[0004] The main purpose of this utility model is to provide a sound protection device that is convenient for users to operate, allows for flexible adjustment of the channel orientation, and improves the usability of the product.

[0005] To achieve the above objectives, this utility model proposes a sound protection device, comprising:

[0006] The skateboard and speaker body are provided, with two wheels and two pulleys fixedly connected to the underside of the skateboard.

[0007] A locking assembly is used to limit and lock each of the aforementioned wheels;

[0008] The first handrail and two second handrails are all fixedly connected to the skateboard;

[0009] A flipping component, which is mounted on a sliding plate, is used to adjust the sound output direction of the speaker body;

[0010] The diameter of the traveling wheel 13 is larger than that of the pulley 14.

[0011] In one possible implementation, the flipping component includes:

[0012] A pedal, which is hinged to a slide plate, and a torsion spring is provided between the pedal and the slide plate to ensure that the pedal is lifted upward;

[0013] Positioning seat, on which a positioning block is slidably connected;

[0014] A transmission plate, which is hinged between the pedal and the positioning block;

[0015] A flip-up base, which is fixedly connected to the slide plate;

[0016] The flip plate is rotatably connected to the flip base, and the speaker body is detachably fixedly connected to the flip plate. The flip plate is engaged with the positioning block.

[0017] In one possible implementation, the underside of the flip disk is provided with a plurality of locking slots in a ring around the axis of the flip disk, and the positioning block abuts against the inner wall of each locking slot.

[0018] In one possible implementation, the positioning seat is tilted downwards in a direction away from the pedal.

[0019] In one possible implementation, the pedal has several striped grooves.

[0020] In one possible implementation, the locking component includes:

[0021] A plurality of limiting blocks, each of which is hinged to a sliding plate, and each of which has a limiting strip hinged to its upper end;

[0022] Several limiting seats are fixedly connected to the slide plate. Several limiting grooves are provided on the limiting seats. The end of the limiting strip away from the limiting block abuts against the inner wall of the limiting groove.

[0023] Several limiting springs are provided, each of which is disposed between the limiting block and the sliding plate;

[0024] A brake pad is fixedly connected to the lower end of the limit block facing the side of the traveling wheel.

[0025] In one possible implementation, the limiting block is provided with a positioning groove for limiting the maximum flipping angle of the limiting block.

[0026] This utility model's technical solution, through a flip component, allows users to adjust the rotation direction of the speaker body according to specific needs, thereby adjusting the channel orientation of the speaker body. This enables users to quickly adapt to different scenario requirements when using the speaker, not only facilitating user operation but also enhancing the flexibility and adaptability of the speaker body, thus improving the overall user experience. In addition, flexibly adjusting the channel orientation helps improve sound quality and makes the sound coverage more uniform, thereby enhancing the overall auditory experience. Furthermore, when moving the speaker body, it can increase the contact area between the product and the ground, providing more stability and reducing tilting or imbalance during pushing and pulling, especially on uneven ground or in the presence of obstacles, thus improving usability. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0028] Figure 1 This is an enlarged schematic diagram of the structure of a sound protection device according to the present invention;

[0029] Figure 2 This is an enlarged schematic diagram of a partial structure of the sound protection device of this utility model. Figure 1 ;

[0030] Figure 3 for Figure 2 Enlarged diagram of A in the middle;

[0031] Figure 4 This is an enlarged schematic diagram of a partial structure of the sound protection device of this utility model. Figure 2 ;

[0032] Figure 5 for Figure 4 Enlarged diagram of B in the middle;

[0033] Figure 6 This is an enlarged schematic diagram of a limiting block for a sound protection device according to this utility model.

[0034] Explanation of icon numbers:

[0035] 11. Skateboard; 12. Speaker unit; 13. Wheels; 14. Pulley; 15. First handrail; 16. Second handrail; 21. Pedal; 211. Groove; 22. Positioning seat; 23. Positioning block; 24. Transmission plate; 25. Flip seat; 26. Flip disc; 261. Slot; 31. Limiting block; 311. Positioning groove; 32. Limiting strip; 33. Limiting seat; 331. Limiting groove; 34. Limiting spring; 35. Brake pad.

[0036] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0038] Example

[0039] Reference Figures 1 to 6 This utility model proposes a sound protection device, comprising:

[0040] The skateboard 11 and the speaker body 12 are fixedly connected to the underside of the skateboard 11, with two wheels 13 and two pulleys 14.

[0041] The locking component is used to limit and lock each of the traveling wheels 13;

[0042] The first handrail 15 and the two second handrails 16 are all fixedly connected to the slide plate 11;

[0043] A flip component is mounted on the slide plate 11 and is used to adjust the sound output direction of the speaker body 12.

[0044] The diameter of wheel 13 is larger than that of pulley 14;

[0045] By using the flip component, users can adjust the rotation direction of the speaker body 12 according to specific needs, thereby adjusting the channel orientation of the speaker body 12. This allows users to quickly adapt to different scenario requirements when using the speaker, which not only makes it easier for users to operate, but also enhances the flexibility and adaptability of the speaker body, improving the overall user experience. In addition, flexibly adjusting the channel orientation helps to improve the sound quality and make the sound coverage more uniform, thereby enhancing the overall listening experience.

[0046] The larger diameter of the walking wheel 13 compared to the pulley 14 provides better stability. Since outdoor use often involves pushing and pulling on uneven ground, the larger diameter of the walking wheel 13 increases the contact area with the ground, providing greater stability and reducing tilting or imbalance during pushing and pulling. This is especially beneficial on uneven ground or when there are obstacles. It also improves the steering ability and maneuverability of the skateboard 11. When turning or adjusting direction, the larger walking wheel 13 allows for more flexible steering, reducing the risk of the skateboard 11 tipping over. This is particularly beneficial when using it under heavy loads or on steep slopes, enhancing usability. Finally, the larger diameter of the walking wheel 13 better distributes pressure on the speaker body 12 during use, reducing wear on the walking wheel 13 and pulley 14, thereby improving the overall durability of the product and extending its lifespan, especially in scenarios with frequent use.

[0047] refer to Figures 1 to 6 The flipping component includes:

[0048] The pedal 21 is hinged to the slide plate 11, and a torsion spring is provided between the pedal 21 and the slide plate 11 to ensure that the pedal 21 is lifted upward.

[0049] Positioning seat 22, on which positioning block 23 is slidably connected;

[0050] Transmission plate 24 is hinged between pedal 21 and positioning block 23;

[0051] The flip seat 25 is fixedly connected to the slide plate 11.

[0052] The flip plate 26 is rotatably connected to the flip base 25. The speaker body 12 is detachably fixedly connected to the flip plate 26. The flip plate 26 is snapped into the positioning block 23.

[0053] By using the flip component, users can adjust the rotation direction of the speaker body 12 according to specific needs, thereby adjusting the channel orientation of the speaker body 12. This allows users to quickly adapt to different scenario requirements when using the speaker, which not only makes it easier for users to operate, but also enhances the flexibility and adaptability of the speaker body, improving the overall user experience. In addition, flexibly adjusting the channel orientation helps to improve the sound quality and make the sound coverage more uniform, thereby enhancing the overall listening experience.

[0054] refer to Figures 1 to 2 and Figures 4 to 5 The underside of the flip disk 26 is provided with a number of locking slots 261 in a ring around the axis of the flip disk 26, and the positioning block 23 abuts against the inner wall of each locking slot 261.

[0055] By stepping on pedal 21, pedal 21 will flip towards positioning seat 22, causing positioning block 23 to move away from pedal 21 along positioning seat 22. During this process, positioning block 23 will separate from the inner wall of locking groove 261. When pedal 21 is no longer under force, due to the torsion spring between pedal 21 and slide plate 11, pedal 21 will be pushed back to its original position, thereby driving positioning block 23 to re-engage with the inner wall of locking groove 261. Since it has multiple locking grooves 261, users can adjust the rotation direction of speaker body 12 according to specific needs, thereby adjusting the channel orientation of speaker body 12. This design not only facilitates user operation, but also enhances the flexibility and adaptability of speaker body, improving the overall user experience.

[0056] refer to Figures 4 to 5 The positioning seat 22 is inclined downward in the direction away from the pedal 21;

[0057] The tilting of the positioning seat 22 allows the positioning block 23 to slide along the upper surface of the positioning seat 22 and gradually move downwards. This allows the positioning block 23 to separate from each slot 261 more quickly, ensuring that the flip plate 26 can rotate stably.

[0058] refer to Figures 1 to 2 The pedal 21 has several striped grooves 211.

[0059] The striped groove 211 is designed to increase the surface friction of the pedal 21, thereby improving the stability of the user during operation. When the user adjusts the channel orientation of the speaker body 12 through the pedal 21, the presence of the striped groove can effectively prevent slippage, ensuring that the user can operate more steadily, enhancing the overall user experience, reducing the potential risks caused by slippage, and ensuring the stability of the speaker system during the adjustment process. By increasing the contact area between the user and the pedal, the user can control the speaker direction with more confidence and ensure that the sound quality reaches the best state.

[0060] refer to Figures 1 to 3 The card slot components include:

[0061] Several limiting blocks 31 are hinged to the slide plate 11, and each limiting block 31 has a limiting strip 32 hinged to its upper end.

[0062] Several limiting seats 33 are fixedly connected to the slide plate 11. Several limiting grooves 331 are provided on the limiting seats 33. The end of the limiting strip 32 away from the limiting block 31 abuts against the inner wall of the limiting groove 331.

[0063] Several limiting springs 34 are provided, and each limiting spring 34 is disposed between each limiting block 31 and the sliding plate 11;

[0064] A brake pad 35 is fixedly connected to the lower end of the limiting block 31 facing the side of the traveling wheel 13;

[0065] The locking component, through the flipping mechanism of the limiting block 31, can effectively flip the brake pad 35 to the direction of the traveling wheel 13. When the speaker body 12 is connected to the skateboard 11 and needs to stop sliding, the locking component can apply a brake to the traveling wheel 13, thereby braking the skateboard 11. This ensures that the speaker body 12 will not become unstable due to the movement of the skateboard 11 during operation, thus enhancing the safety and stability of the speaker system. By combining locking and braking, accidental movement can be effectively prevented, while also improving the user experience and the reliability of the equipment.

[0066] refer to Figures 1 to 3 and Figure 6 The limiting block 31 is provided with a positioning groove 311, which is used to limit the maximum flipping angle of the limiting block 31;

[0067] The positioning groove 311 is designed to limit the maximum angle at which the limiting block 31 flips toward the limiting seat 33, thereby effectively preventing the limiting block 31 from being damaged due to the action of the limiting spring 34 after the limiting strip 32 falls. This not only improves the stability of the limiting block 31, but also significantly extends its service life, ensuring safety and reliability under various operating conditions. Through reasonable angle limitation and reliable spring mechanism, the durability of the entire device is enhanced, maintenance costs are reduced, and overall performance is improved.

[0068] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0069] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A sound protection device, characterized in that, include: The slide (11) and the speaker body (12) are fixedly connected to the underside of the slide (11) with two wheels (13) and two pulleys (14); The locking component is used to limit and lock each of the walking wheels (13); The first handrail (15) and two second handrails (16) are fixedly connected to the slide plate (11); A flipping component is disposed on a slide plate (11) for adjusting the sound output direction of the speaker body (12); The diameter of the traveling wheel (13) is greater than that of the pulley (14).

2. The sound protection device according to claim 1, characterized in that, The flipping component includes: A pedal (21) is hinged to a slide plate (11), and a torsion spring is provided between the pedal (21) and the slide plate (11) to ensure that the pedal (21) is lifted upward. Positioning seat (22), on which a positioning block (23) is slidably connected; A transmission plate (24) is hinged between the pedal (21) and the positioning block (23); A flip seat (25) is fixedly connected to a slide plate (11); The flip plate (26) is rotatably connected to the flip base (25), and the speaker body (12) is detachably fixedly connected to the flip plate (26). The flip plate (26) is engaged with the positioning block (23).

3. The sound protection device according to claim 2, characterized in that, The underside of the flip disk (26) is provided with a plurality of locking slots (261) arranged in a ring around the axis of the flip disk (26), and the positioning block (23) abuts against the inner wall of each locking slot (261).

4. The sound protection device according to claim 2, characterized in that, The positioning seat (22) is inclined downward in the direction away from the pedal (21).

5. The sound protection device according to claim 2, characterized in that, The pedal (21) is provided with several striped grooves (211).

6. The sound protection device according to claim 1, characterized in that, The card slot component includes: A plurality of limiting blocks (31) are provided, each of the limiting blocks (31) being hinged to the slide plate (11), and each of the limiting blocks (31) having a limiting strip (32) hinged to its upper end; A plurality of limiting seats (33) are fixedly connected to the slide plate (11). A plurality of limiting grooves (331) are provided on the limiting seats (33). The end of the limiting strip (32) away from the limiting block (31) abuts against the inner wall of the limiting groove (331). A plurality of limiting springs (34) are provided, each of the limiting springs (34) being disposed between each limiting block (31) and the sliding plate (11); A brake pad (35) is fixedly connected to the lower end of the limiting block (31) facing the side of the traveling wheel (13).

7. The sound protection device according to claim 6, characterized in that, The limiting block (31) is provided with a positioning groove (311) for limiting the maximum flipping angle of the limiting block (31).