A dust removal net cover mounting structure for a sound box
By installing a pull-type fastening component on the speaker, the problem of cumbersome disassembly of the speaker dust cover is solved, enabling quick disassembly and installation, and improving the speaker's ease of use and cleaning efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGTAI PENGMEI ELECTRONIC IND CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-06-05
AI Technical Summary
The existing speaker dust cover is cumbersome to disassemble and clean, making it inconvenient to disassemble and install quickly. It is especially difficult to clean when tools are lacking, which affects the speaker's flexibility of use and sound quality.
The dust collector screen is fastened using a pull-type fastening assembly, including a connecting ring, a moving guide rod, a positioning sleeve, a pressure spring, a pull rod, and a locking ring. The dust collector screen can be quickly installed and removed by pulling and rotating the pull rod. The sealing ring and protective ring gasket enhance the sealing and protection.
It enables quick and convenient installation and removal of the dust cover, ensuring the speaker's sealing and dustproof effect, and improving the speaker's usability and cleaning efficiency.
Smart Images

Figure CN224329554U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of speaker manufacturing, and in particular relates to a speaker dust removal mesh cover installation structure. Background Technology
[0002] A speaker is a device that converts audio signals into sound. In smart voice devices, speakers are an indispensable component. A speaker typically includes a horn and a casing surrounding it. The horn amplifies the sound for playback to meet user needs. Currently, the speaker's sound-emitting opening often requires dust removal. This is typically achieved by installing a dust filter on the outside of the opening to isolate dust. However, after a period of use, a large amount of dust accumulates on the outside of the filter, affecting the speaker's sound quality. Therefore, regular disassembly and cleaning are necessary. Users usually need to remove screws for cleaning and then reassemble, which is cumbersome and inconvenient. Furthermore, speakers cannot be quickly disassembled, cleaned, or reassembled during use, and disassembly and cleaning are impossible without the necessary tools. This makes use and cleaning inconvenient and reduces flexibility. Summary of the Invention
[0003] In view of the shortcomings of the prior art, the present invention solves the problem of providing a speaker dust cover installation structure that can quickly, conveniently and efficiently clean the dust cover.
[0004] To solve the above problems, the technical solution adopted by this utility model is as follows:
[0005] A speaker dust cover mounting structure includes a speaker body, a speaker unit, a dust cover, and a pull-type fastening assembly. The speaker body has a sound-emitting opening in the center of its front side. The speaker unit is installed inside the speaker body, located inside the sound-emitting opening. The dust cover is located outside the sound-emitting opening, directly opposite it. The pull-type fastening assembly is mounted on the speaker body. The pull-type fastening assembly includes a connecting ring, a moving guide rod, a positioning sleeve, a pressure spring, a pull rod, and a locking ring. Connecting rings are installed around the dust cover. A moving guide rod is installed at the top and bottom of the inner side of each connecting ring. The moving guide rods pass through the speaker body, with their outer ends extending into the interior of the speaker body. A positioning sleeve is installed at the top and bottom of the rear interior side of the speaker body. Each positioning sleeve has a pressure spring installed inside; the outer end of the moving guide rod slides into the positioning sleeve and elastically abuts against the pressure spring; the pull rod slides through the middle of the rear side of the speaker body, with the inner end of the pull rod located inside the speaker body and connected to the two moving guide rods, and the outer end of the pull rod located outside the rear side of the speaker body; a locking ring is threaded onto the pull rod, and when the pull rod is pulled backward, the locking ring rotates and is firmly pressed against the outer wall of the speaker body, forming a locked installation, and making the dust filter tightly press against the outer wall of the speaker body; the locking ring rotates outward on the pull rod, the pressure spring presses against the moving guide rod, and makes the dust filter and the pull rod move synchronously, so that the outer end of the pull rod moves towards the speaker body, the pull rod is pulled outward and then released, and this is repeated multiple times, causing the dust filter to vibrate back and forth to remove dust.
[0006] Furthermore, the front side of the speaker body is provided with through holes at the top and bottom; the movable guide rod passes through the through holes and is connected to the speaker body.
[0007] Furthermore, a sealing ring is provided around the inner perimeter of the connecting ring; movable guide rods are respectively distributed above and below the sealing ring; the pull rod is pulled outward, causing the sealing ring to seal against the outer wall of the speaker body, and the sealing ring is located around the outer perimeter of the sound opening.
[0008] Furthermore, the pull rod has an external thread section around its outer perimeter; the locking ring is threadedly rotatably sleeved on the external thread section of the pull rod.
[0009] Furthermore, the speaker body has movable sliding grooves on its upper and lower sides; the movable guide rod is provided with movable locking rods; the outer end of the movable locking rod is slidably locked onto the movable sliding groove.
[0010] Furthermore, a through-channel is provided in the middle of the rear side of the speaker body, through which the pull rod slides and is connected to the speaker body; protective ring pads are provided around the outer perimeter of the through-channel.
[0011] Furthermore, the inner end of the pull rod is provided with a longitudinal connecting rod; the upper and lower ends of the longitudinal connecting rod are respectively connected to a movable guide rod.
[0012] Furthermore, the sound-producing unit is a loudspeaker.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. During installation, the pull rod is pulled backward, and the locking ring rotates and securely presses against the outer wall of the speaker body, causing the dust filter to press tightly against the outer wall of the speaker body, forming a locked installation. This constitutes the normal installation operation mode. When it is necessary to clean the dust filter, the locking ring is rotated outward on the pull rod, causing the pull rod to move inward to release space. The pressure spring then presses against the moving guide rod, causing the moving guide rod to move outward. The moving guide rod drives the dust filter and the pull rod to move synchronously, causing the outer end of the pull rod to move towards the speaker body. Finally, the pull rod is pulled outward and then released. Repeating this process multiple times causes the dust filter to vibrate back and forth to remove dust, which is efficient and convenient.
[0015] 2. This utility model has a sealing ring around the inner side of the connecting ring, which can ensure the sealing of the dust removal mesh cover and prevent dust from entering the speaker body.
[0016] 3. This utility model provides protective ring pads around the outer perimeter of the through-channel of the speaker body, so as to prevent impact when the pull rod and locking ring move toward the outer wall of the speaker body, thus playing a role in isolation and protection. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model after installation and locking.
[0018] Figure 2 This is a schematic diagram of the structure of the locking ring of this utility model after it rotates outward on the pull rod.
[0019] Figure 3 This is a schematic diagram of the structure of the dust removal mesh cover, connecting ring, sealing ring, and moving guide rod of this utility model.
[0020] Figure 4 This is an enlarged structural schematic diagram of the pull-type fastening assembly of this utility model. Detailed Implementation
[0021] The present invention will now be described in further detail with reference to the accompanying drawings.
[0022] like Figures 1 to 4As shown, a speaker dust cover mounting structure includes a speaker body 1, a sound unit 2, a dust cover 3, and a pull-type fastening assembly 4. A sound opening 11 is formed in the center of the front side of the speaker body 1. The sound unit 2 is installed inside the speaker body 1, located inside the sound opening 11. The dust cover 3 is located outside the sound opening 11, directly opposite it. The pull-type fastening assembly 4 is mounted on the speaker body 1. The pull-type fastening assembly 4 includes a connecting ring 41, a moving guide rod 42, a positioning sleeve 43, a pressure spring 44, a pull rod 45, and a locking ring 46. The connecting ring 41 is installed around the dust cover 3. A moving guide rod 42 is installed on the upper and lower sides of the inner side of the connecting ring 41. The moving guide rod 42 passes through the speaker body 1, with its outer end extending into the interior of the speaker body 1. A positioning sleeve is installed on the upper and lower sides of the rear interior of the speaker body 1. 43. A compression spring 44 is installed inside the positioning sleeve 43; the outer end of the moving guide rod 42 is slidably inserted into the positioning sleeve 43 and elastically abuts against the compression spring 44; the pull rod 45 is slidably connected to the middle of the rear side of the speaker body 1, the inner end of the pull rod 45 is located inside the speaker body 1 and connected to the two moving guide rods 42, and the outer end of the pull rod 45 is located outside the rear side of the speaker body 1; a locking ring 46 is threaded onto the pull rod 45, and the pull rod 45 is pulled backward. Furthermore, the locking ring 46 rotates and presses firmly against the outer wall of the speaker body 1, forming a locked installation, and making the dust removal mesh cover 3 press tightly against the outer wall of the speaker body; the locking ring 46 rotates outward on the pull rod 45, the spring 44 presses against the moving guide rod 42, and the dust removal mesh cover 3 and the pull rod 45 move synchronously, so that the outer end of the pull rod 45 moves towards the speaker body 1, pulls the pull rod 45 outward and then releases it, repeating this process multiple times, causing the dust removal mesh cover 3 to vibrate back and forth to remove dust.
[0023] like Figures 1 to 4 As shown, in order to facilitate the installation of the movable guide rod 42, the front side of the speaker body 1 is provided with through holes 12 at the top and bottom respectively; the movable guide rod 42 is connected to the speaker body 1 through the through holes 12.
[0024] like Figures 1 to 4 As shown, in order to improve the sealing between the dust removal mesh cover 3 and the speaker body 1, a sealing ring 411 is provided around the inner side of the connecting ring 41; the upper and lower parts of the sealing ring 411 are respectively connected to the movable guide rod 42; the pull rod 45 is pulled outward, so that the sealing ring 411 is sealed and fitted against the outer wall of the speaker body 1, and the sealing ring 411 is located around the outer side of the sound opening 11.
[0025] like Figures 1 to 4As shown, in order to facilitate the installation of the locking ring 46, the outer periphery of the pull rod 45 is provided with an external thread section 451; the locking ring 46 is threadedly rotatably sleeved on the external thread section 451 of the pull rod 45.
[0026] like Figures 1 to 4 As shown, in order to improve the movement stability of the moving guide rod 42, the speaker body 1 is further provided with moving slide grooves 13 at the top and bottom respectively; the moving guide rod 42 is provided with moving locking rods 421 respectively; the outer end of the moving locking rod 421 is slidably locked onto the moving slide groove 13.
[0027] like Figures 1 to 4 As shown, in order to facilitate the sliding connection of the pull rod 45 and prevent collision, a connection channel 14 is provided in the middle of the rear side of the speaker body 1, and the pull rod 45 is slidably connected to the speaker body 1 through the connection channel 14; a protective ring pad 141 is provided around the outer perimeter of the connection channel 14.
[0028] like Figures 1 to 4 As shown, to facilitate the connection between the pull rod 45 and the two movable guide rods 42, a longitudinal connecting rod 452 is further provided at the inner end of the pull rod 45; the upper and lower ends of the longitudinal connecting rod 452 are respectively connected to the movable guide rods 42. Furthermore, the sound-producing unit 2 is a loudspeaker.
[0029] During installation, the pull rod 45 is pulled backward, and the locking ring 46 rotates and presses firmly against the outer wall of the speaker body 1, causing the dust filter 3 to press tightly against the outer wall of the speaker body, forming a locked installation. This constitutes the normal installation operation mode. When it is necessary to clean the dust filter 3, the locking ring 46 is rotated outward on the pull rod 45, causing the pull rod 45 to move inward to release space. The pressure spring 44 then presses against the moving guide rod 42, causing the moving guide rod 42 to move outward. The moving guide rod 42 drives the dust filter 3 and the pull rod 45 to move synchronously, causing the outer end of the pull rod 45 to move towards the speaker body 1. Finally, the pull rod 45 is pulled outward and then released. This process is repeated multiple times, causing the dust filter 3 to vibrate back and forth to remove dust, which is efficient and convenient.
[0030] This utility model provides a sealing ring 411 around the inner side of the connecting ring 41, which can ensure the sealing of the dust removal mesh cover 3 and prevent dust from entering the speaker body 1.
[0031] This invention provides protective ring pads 141 around the outer perimeter of the through-channel 14 of the speaker body 1. This prevents impact when the pull rod 45 and locking ring 46 move toward the outer wall of the speaker body 1, thus providing isolation and protection.
[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A speaker dust removal mesh cover installation structure, characterized in that, The speaker includes a speaker body, a driver unit, a dust filter, and a pull-type fastening assembly. A sound-emitting opening is located in the center of the front side of the speaker body. The driver unit is installed inside the speaker body, located inside the sound-emitting opening. The dust filter is located outside the sound-emitting opening, directly opposite it. The pull-type fastening assembly is mounted on the speaker body. The pull-type fastening assembly includes a connecting ring, a moving guide rod, a positioning sleeve, a pressure spring, a pull rod, and a locking ring. Connecting rings are installed around the dust filter. A moving guide rod is installed at the top and bottom of the inner side of each connecting ring. The moving guide rods pass through the speaker body, with their outer ends extending into the interior of the speaker body. A positioning sleeve is installed at the top and bottom of the rear interior side of the speaker body. Each part is equipped with a pressure spring; the outer end of the movable guide rod slides into the positioning sleeve and elastically abuts against the pressure spring; the pull rod slides through the middle of the rear side of the speaker body, the inner end of the pull rod is located inside the speaker body and connected to the two movable guide rods, and the outer end of the pull rod is located outside the rear side of the speaker body; a locking ring is threaded onto the pull rod, and when the pull rod is pulled backward, the locking ring rotates and is firmly pressed against the outer side wall of the speaker body, forming a locked installation, and making the dust filter tightly press against the outer side wall of the speaker body; the locking ring rotates outward on the pull rod, the pressure spring presses against the movable guide rod, and makes the dust filter and the pull rod move synchronously, so that the outer end of the pull rod moves towards the speaker body, the pull rod is pulled outward and then released, and repeated multiple times, causing the dust filter to vibrate back and forth to remove dust.
2. The speaker dust removal mesh cover installation structure according to claim 1, characterized in that, The front side of the speaker body is provided with through holes at the top and bottom; the movable guide rod is connected to the speaker body through the through holes.
3. The speaker dust removal mesh cover installation structure according to claim 1, characterized in that, The inner perimeter of the connecting ring is provided with a sealing ring; the upper and lower parts of the sealing ring are respectively connected to movable guide rods; the pull rod is pulled outward, so that the sealing ring is sealed and fitted against the outer wall of the speaker body, and the sealing ring is located on the outer perimeter of the sound opening.
4. The speaker dust removal mesh cover installation structure according to claim 1, characterized in that, The pull rod has an external thread section around its outer perimeter; the locking ring is rotatably sleeved on the external thread section of the pull rod.
5. The speaker dust removal mesh cover installation structure according to claim 1, characterized in that, The speaker body has movable sliding grooves on its upper and lower sides; the movable guide rod is equipped with movable locking rods; the outer end of the movable locking rod is slidably locked onto the movable sliding groove.
6. The speaker dust removal mesh cover installation structure according to claim 1, characterized in that, The speaker body has a through-channel in the middle of its rear side, through which the pull rod slides and connects to the speaker body; the outside of the through-channel is provided with protective ring pads.
7. The speaker dust removal mesh cover installation structure according to claim 1, characterized in that, The inner end of the pull rod is provided with a longitudinal connecting rod; the upper and lower ends of the longitudinal connecting rod are respectively connected to a movable guide rod.
8. The speaker dust removal mesh cover installation structure according to claim 1, characterized in that, The sound-producing unit is a loudspeaker.