Waterproof and dustproof structure of high-power loudspeaker
By designing a waterproof and dustproof structure, and utilizing a combination of a motor-driven worm gear to shield the horn opening and a sealing ring sleeve, the problem of dust and moisture corrosion during outdoor use of high-power horns is solved, ensuring the normal operation of the horn and extending its service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN SOUND SOURCE ELECTRONICS CO LTD
- Filing Date
- 2025-04-22
- Publication Date
- 2026-05-01
AI Technical Summary
High-power speakers lack effective protection when used outdoors, making them susceptible to dust and moisture corrosion, which leads to deterioration in sound quality and a shortened lifespan.
A waterproof and dustproof structure was designed, comprising a storage shell, a dual-axis motor, a worm gear, a worm wheel, a rotating shaft, and a protective cover. The worm gear and worm wheel are rotated by the motor to cover the opening of the storage shell. The sealing performance is improved by combining a rubber sealing ring and a heat shrink tubing. The support rod and mounting bracket provide support and fixation.
It effectively prevents dust and moisture corrosion, ensuring the speaker operates normally when idle, and improving its lifespan and sound quality.
Smart Images

Figure CN224192014U_ABST
Abstract
Description
A waterproof and dustproof structure for a high-power speaker Technical Field
[0001] This utility model relates to the field of audio equipment technology, specifically a waterproof and dustproof structure for a high-power speaker. Background Technology
[0002] High-power loudspeakers refer to loudspeaker units or systems with high rated power (usually above 50W) that can withstand strong current driving. They are mainly used in occasions that require high volume, long-distance transmission, or strong bass performance, such as concerts, outdoor broadcasting, and cinema systems.
[0003] However, high-power speakers are usually exposed to the elements when used outdoors. Due to the lack of effective protective structures, they are susceptible to dust and moisture corrosion during long-term idle periods, which can lead to deterioration of sound quality or even damage, greatly affecting the normal operation and lifespan of the speakers. Summary of the Invention
[0004] The purpose of this utility model is to provide a waterproof and dustproof structure for a high-power speaker, which can effectively store and protect the high-power speaker when it is not in use, reduce the chance of the high-power speaker being affected by dust and moisture, and improve the overall service life.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a waterproof and dustproof structure for a high-power horn, comprising a housing shell, an opening on the right side of the housing shell, a high-power horn body disposed in the middle of the inner cavity of the housing shell, a dual-axis motor fixedly installed at the right end of the top of the inner cavity of the housing shell, worm gears fixedly installed on both sides of the output end of the dual-axis motor, the surface of the worm gears being movably connected to the upper end of the inner cavity of the housing shell via bearings, two rotating shafts being movably connected to the top of the housing shell and to the right of the dual-axis motor via bearings, a worm wheel being fixedly installed at the bottom of the rotating shafts, a fixed rod being fixedly connected to the top of the rotating shafts, and a protective cover being fixedly connected to the side of the two fixed rods that are far apart from each other.
[0006] As a preferred embodiment, a cable tray is fixedly connected to the middle of the bottom of the storage shell, a rubber sealing ring is fixedly installed at the lower end of the inner cavity of the cable tray, and a heat shrink sleeve is fitted onto the lower end of the outer surface of the cable tray.
[0007] As a preferred embodiment, a rubber sealing gasket is fixedly installed on the right side of the outer surface of the storage shell.
[0008] As a preferred embodiment, a support rod is fixedly connected to the bottom of the protective cover, and the surface of the support rod is movably connected to the bottom of the outer surface of the storage shell via a bearing.
[0009] As a preferred embodiment, a mounting frame is fixedly connected to the left end of the outer surface of the storage shell, and mounting holes are provided around the perimeter of the mounting frame.
[0010] As a preferred embodiment, mounting brackets are fixedly connected to both ends of the left side of the inner cavity of the storage shell, and the left side of the high-power speaker body is fixedly mounted on the right side of the mounting bracket.
[0011] As a preferred embodiment, the worm gear meshes with the worm.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model, through the design of a storage shell, can store and protect the high-power speaker body during outdoor use, reducing the chance of the high-power speaker body being affected by dust and moisture. At the same time, through the design of a dual-axis motor, worm gear, worm wheel, rotating shaft, fixing rod, and protective cover, the opening on the right side of the storage shell can be shielded and protected when the high-power speaker body is not in use or idle. This effectively improves the waterproof and dustproof protection effect around the high-power speaker body when it is not in use or idle, ensuring that the high-power speaker body can operate normally in later use.
[0014] 2. This utility model, through the design of the cable tray, facilitates the cable routing of the high-power speaker body. The rubber sealing ring and heat-shrink tubing effectively improve the sealing between the cable and the cable tray. The rubber sealing gasket enhances the sealing between the protective cover and the housing. The support rod supports the bottom of the protective cover, preventing it from tilting under stress. The mounting frame and mounting holes facilitate the installation and fixing of the housing. The mounting bracket provides support between the high-power speaker body and the interior of the housing. Attached Figure Description
[0015] Figure 1 is a perspective view of this utility model;
[0016] Figure 2 is a schematic cross-sectional view of the front of the storage shell of this utility model;
[0017] Figure 3 is a schematic cross-sectional view of the right side of the storage shell of this utility model;
[0018] Figure 4 is a schematic diagram of the worm gear structure of this utility model.
[0019] In the diagram: 1. High-power speaker body; 2. Rubber sealing gasket; 3. Protective cover; 4. Storage shell; 5. Mounting frame; 6. Mounting hole; 7. Fixing rod; 8. Cable tray; 9. Support rod; 10. Shaft; 11. Dual-axis motor; 12. Worm gear; 13. Worm wheel; 14. Rubber sealing ring; 15. Heat shrink tubing; 16. Opening; 17. Mounting bracket. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0022] Example 1:
[0023] Please refer to Figures 1-4. This utility model provides a waterproof and dustproof structure for a high-power speaker, including a housing 4. An opening 16 is provided on the right side of the housing 4. A high-power speaker body 1 is provided in the middle of the inner cavity of the housing 4. A dual-axis motor 11 is fixedly installed at the right end of the top of the inner cavity of the housing 4. Worms 12 are fixedly installed on both sides of the output end of the dual-axis motor 11. The surface of the worm 12 is movably connected to the upper end of the inner cavity of the housing 4 through bearings. Two rotating shafts 10 are movably connected to the top of the housing 4 and to the right of the dual-axis motor 11 through bearings. A worm wheel 13 is fixedly installed at the bottom of the rotating shaft 10. A fixing rod 7 is fixedly connected to the top of the rotating shaft 10. A protective cover 3 is fixedly connected to the side of the two fixing rods 7 that are far apart from each other.
[0024] In this technical solution, the storage shell 4 can protect the high-power speaker body 1 during outdoor use, reducing the chance of dust and moisture corrosion. Simultaneously, the dual-axis motor 11, worm gear 12, worm wheel 13, rotating shaft 10, fixing rod 7, and protective cover 3 can shield the opening 16 on the right side of the storage shell 4 when the high-power speaker body 1 is not in use. This effectively improves the waterproof and dustproof protection of the high-power speaker body 1 when it is not in use, ensuring its normal operation during later use.
[0025] Example 2:
[0026] Based on Embodiment 1, as shown in Figures 1-4, this utility model discloses a cable reel 8 fixedly connected to the middle of the bottom of the storage shell 4, a rubber sealing ring 14 fixedly installed at the lower end of the inner cavity of the cable reel 8, a heat shrink sleeve 15 sleeved on the lower end of the outer surface of the cable reel 8, a rubber sealing gasket 2 fixedly installed on the right side of the outer surface of the storage shell 4, a support rod 9 fixedly connected to the bottom of the protective cover 3, the surface of the support rod 9 being movably connected to the bottom of the outer surface of the storage shell 4 via a bearing, a mounting frame 5 fixedly connected to the left end of the outer surface of the storage shell 4, mounting holes 6 being provided around the mounting frame 5, mounting brackets 17 fixedly connected to both ends of the left side of the inner cavity of the storage shell 4, the left side of the high-power speaker body 1 being fixedly installed on the right side of the mounting bracket 17, and a worm gear 13 meshing with a worm 12.
[0027] In this technical solution, the cable tray 8 facilitates the cable routing of the high-power speaker body 1. The rubber sealing ring 14 and heat shrink tubing 15 effectively improve the sealing between the cable and the cable tray 8. The rubber sealing gasket 2 effectively improves the sealing between the protective cover 3 and the housing 4. The support rod 9 supports the bottom of the protective cover 3, preventing it from tilting due to stress. The mounting frame 5 and mounting holes 6 facilitate the installation and fixing of the housing 4 (it should be noted that the mounting frame 5 can be installed at an angle to ensure that the opening 16 on the right side of the housing 4 faces downwards at a certain angle). The mounting bracket 17 provides support for the installation between the high-power speaker body 1 and the interior of the housing 4.
[0028] The working principle of this utility model is as follows: By setting up the storage shell 4, the high-power speaker body 1 can be stored and protected during outdoor use, reducing the chance of the high-power speaker body 1 being subject to dust adhesion and moisture corrosion. When the high-power speaker body 1 is not in use and is not idle, the person can start the dual-axis motor 11 through the external controller to drive the worm gear 12 to rotate (it should be noted that the direction of the helical teeth on the surfaces of the two sets of worm gears 12 is opposite). The rotation of the worm gear 12 drives the two sets of worm wheels 13 to rotate, which in turn drives the rotating shaft 10, the fixing rod 7 and the protective cover 3 to rotate until the two sets of protective covers 3 can fit together under the action of rotation, thus covering the opening 16 on the right side of the storage shell 4. This effectively prevents dust and moisture in the environment from entering the interior of the storage shell 4 when the high-power speaker body 1 is not in use and is not idle, ensuring that the high-power speaker body 1 can operate normally during later use.
[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.
Claims
1. A waterproof and dustproof structure for a high-power speaker, comprising a housing (4), characterized in that: An opening (16) is provided on the right side of the storage shell (4). A high-power speaker body (1) is provided in the middle of the inner cavity of the storage shell (4). A dual-axis motor (11) is fixedly installed at the right end of the top of the inner cavity of the storage shell (4). Worms (12) are fixedly installed on both sides of the output end of the dual-axis motor (11). The surface of the worm (12) is movably connected to the upper end of the inner cavity of the storage shell (4) through a bearing. A rotating shaft (10) is movably connected to the top of the storage shell (4) and to the right of the dual-axis motor (11) through a bearing. There are two rotating shafts (10). A worm wheel (13) is fixedly installed at the bottom of the rotating shaft (10). A fixing rod (7) is fixedly connected to the top of the rotating shaft (10). A protective cover (3) is fixedly connected to the side of the two fixing rods (7) that are far apart from each other.
2. The waterproof and dustproof structure for a high-power speaker according to claim 1, characterized in that: A cable tray (8) is fixedly connected to the middle of the bottom of the storage shell (4). A rubber sealing ring (14) is fixedly installed at the lower end of the inner cavity of the cable tray (8). A heat shrink sleeve (15) is fitted on the lower end of the outer surface of the cable tray (8).
3. The waterproof and dustproof structure of a high-power speaker according to claim 1, characterized in that: A rubber sealing gasket (2) is fixedly installed on the right side of the outer surface of the storage shell (4).
4. The waterproof and dustproof structure of a high-power speaker according to claim 1, characterized in that: The bottom of the protective cover (3) is fixedly connected to a support rod (9), and the surface of the support rod (9) is movably connected to the bottom of the outer surface of the storage shell (4) through a bearing.
5. The waterproof and dustproof structure for a high-power speaker according to claim 1, characterized in that: A mounting frame (5) is fixedly connected to the left end of the outer surface of the storage shell (4), and mounting holes (6) are provided around the mounting frame (5).
6. The waterproof and dustproof structure of a high-power speaker according to claim 1, characterized in that: The storage shell (4) has mounting brackets (17) fixedly connected to both ends of the left side of its inner cavity, and the left side of the high-power speaker body (1) is fixedly installed on the right side of the mounting bracket (17).
7. The waterproof and dustproof structure of a high-power speaker according to claim 1, characterized in that: The worm gear (13) meshes with the worm (12).