An acoustic device capable of effective waterproofing

Abstract

The application discloses a kind of effectively waterproof sound equipment, belongs to sound equipment technical field, including installation surface and sound equipment ontology, and the side wall of installation surface is equipped with mounting hole, and mounting seat is inserted in the mounting hole.The beneficial effects of the present application are: this kind of effectively waterproof sound equipment makes the installation and disassembly of sound equipment ontology more convenient and fast, at the same time, when installation is completed, the sidewall of fixing ring is abutted after the complete inflation of air bag, so as to ensure that the sealing effect of sound equipment ontology after installation is better, avoid the entry of dust and water stain, when disassembling, the air bag is retracted, so as to reduce the abrasion of air bag during installation and disassembly, ensure its sealing effect and service life, and during installation and disassembly, the fixing ring is not in the state of complete abutment all the time, so that installation and disassembly are more convenient.

Description

Technical Field

[0001] This invention belongs to the field of audio equipment technology, and specifically relates to an audio device that can be effectively waterproofed. Background Technology

[0002] Audio equipment is a commonly used electroacoustic transducer, found in almost every sound-producing electronic and electrical device. It converts electrical signals into sound signals. Its working principle is as follows: When an audio current is passed through the voice coil of an audio device, the voice coil generates an alternating magnetic field under the influence of the current. Simultaneously, a permanent magnet generates a constant magnetic field of unchanging magnitude and direction. Because the magnitude and direction of the magnetic field generated by the voice coil constantly change with the audio current, the interaction of these two magnetic fields causes the voice coil to move perpendicular to the direction of the current within it. Since the voice coil is connected to the diaphragm, this causes the diaphragm to vibrate, which in turn causes the air to vibrate, producing sound.

[0003] Most existing audio equipment is fixed to the mounting surface with multiple screws, which is inconvenient for installation and disassembly. At the same time, frequent removal of screws can easily lead to loosening of the threaded hole connection. Furthermore, the sealing performance of audio equipment after installation is poor, allowing external dust and water stains to easily enter. If a sealing ring is used on the sealing surface, it will be squeezed during installation, which not only makes installation and disassembly inconvenient but also easily causes wear on the sealing ring, resulting in poor waterproof performance and affecting its sealing effect and service life. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide an audio device that is effectively waterproof.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A waterproof audio device includes a mounting surface and an audio device body. The mounting surface has a mounting hole on its side wall, a mounting base is inserted into the mounting hole, and a fixing component is provided between the mounting base and the mounting surface. The end of the mounting base has a through hole, and a fixing ring is fixedly connected to the side wall of the audio device body. The end of the fixing ring is fixedly connected to two symmetrically arranged connecting plates, and a plug rod is fixedly connected to the side wall of the connecting plates. The end of the mounting base has two symmetrically arranged insertion holes, and a moving tube is connected to the insertion holes through a reset mechanism. The side wall of the insertion hole is provided with a limiting mechanism for limiting the insertion rod, and the side wall of the through hole is provided with a sealing mechanism for sealing the side wall of the audio device body.

[0007] Furthermore, the reset mechanism is fixedly connected to the fixed rod at the bottom of the socket, and the upper end of the fixed rod extends through the moving tube and is fixedly connected to the moving disk. The moving disk slides inside the moving tube, and a reset component is provided between the fixed rod and the moving tube.

[0008] Furthermore, the reset assembly includes a first spring sleeved on the side wall of the fixed rod, the upper end of the first spring being fixed to the bottom of the moving tube, and the lower end of the first spring being fixed to the bottom of the insertion hole.

[0009] Furthermore, the limiting mechanism includes a first limiting block fixedly connected to the side wall of each insertion rod, and each insertion hole has an installation groove on its side wall. An installation plate is fixedly connected to the side wall of the installation groove, and a first sliding groove is provided on the side wall of the installation plate. A sliding plate is connected to the first sliding groove through a telescopic component, and a plurality of second limiting blocks arranged in an array are fixedly connected to the side wall of the sliding plate. The second limiting block includes a limiting surface and an inclined surface, and the movement of the sliding plate is driven by a pushing component.

[0010] Furthermore, the telescopic assembly includes a sleeve rod fixedly connected to the side wall of each sliding plate, and a sleeve is fitted on the side wall of the sleeve rod. The sleeve is fixed to the side wall of the first sliding groove, and a second spring is fitted on the side wall of the sleeve.

[0011] Furthermore, the pushing component includes a second sliding groove formed on the top of the mounting plate, and the second sliding groove communicates with the first sliding groove. A pushing plate is slidably connected in the second sliding groove, and the lower sidewall of the pushing plate is fixed to the upper sidewall of the sliding plate.

[0012] Furthermore, the fixing component includes two symmetrically arranged fixing plates fixedly connected to the side wall of the mounting base, and the side wall of the fixing plates is provided with a slot.

[0013] Furthermore, the sealing mechanism includes an annular groove formed on the inner sidewall of the through hole, and an annularly arranged airbag is fixedly installed in the annular groove. The sidewall of the moving tube is provided with an inflation component for inflating the airbag, and the moving tube is filled with gas.

[0014] Furthermore, the inflation assembly includes a long slot formed on the side wall of the moving tube, and an L-shaped air passage is formed on the side wall of the through hole, the upper end of which is connected to the interior of the airbag.

[0015] Furthermore, a sealing ring is provided on the side wall where the movable disk mates with the movable tube.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. By setting up a sealing mechanism, during installation, when the moving tube moves downwards, the moving disc moves upwards inside the moving tube, thus compressing the air inside the moving tube. At the same time, the air passage aligns with the long slot. At this point, the compressed air inside the moving tube enters the airbag through the long slot and the air passage, causing it to gradually expand. When the audio equipment body is installed in place, i.e., the fixing ring is aligned with the airbag, the long slot and the air passage are misaligned, allowing the airbag to fully expand and abut against the side wall of the fixing ring. This ensures a better sealing effect after the audio equipment body is installed, preventing dust and water stains from entering. Furthermore, when the audio equipment body is disassembled, when the moving tube moves upwards, a negative pressure is created inside the moving tube. Simultaneously, the long slot gradually aligns with the air passage again. At this point, the air inside the airbag is drawn back into the moving tube, causing the airbag to contract and return to its original position. This reduces wear on the airbag during installation and disassembly, ensuring its sealing effect and service life. Moreover, the airbag is not always in a completely tight state against the fixing ring during installation and disassembly, making installation and disassembly more convenient.

[0018] 2. By setting a limiting mechanism, when the speaker body needs to be installed, the plug is inserted into the socket and abuts against the upper end of the moving tube. At the same time, the speaker body moves into the through hole, thereby pushing the moving tube downward. Simultaneously, the moving plate is compressed, and the first limiting block slides on the side wall of the inclined plane, thereby pushing the second limiting block into the first sliding groove. At the same time, the second spring is compressed. When the first limiting block crosses the inclined plane, the second limiting block can extend under the action of the second spring, so that the upper side wall of the first limiting block abuts against the limiting surface, thereby fixing the plug and ensuring that the lower side wall of the connecting plate abuts against the top of the mounting base, thus ensuring that the speaker body is installed in place, making the installation of the speaker body more convenient and quick.

[0019] 3. By setting up a pushing mechanism, when it is necessary to disassemble the audio equipment body, the push plate is moved to move the sliding plate away from the moving tube. The movement of the sliding plate drives the second limiting block to move synchronously. At the same time, the second spring is compressed, so that the second limiting block is disengaged from the first limiting block. At this time, the limiting effect on the plug rod is lost. Thus, under the action of the moving plate, the moving tube and the plug rod are pushed upward and the plug rod is pushed out of the plug hole, which facilitates the disassembly of the audio equipment body.

[0020] Other advantages, objectives, and features of the invention will be set forth in the following description and will be apparent to those skilled in the art in some respects, or may be learned by practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0021] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the following figures are provided for illustration:

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall structure of the mounting base in this invention;

[0024] Figure 3 This is a cross-sectional view of the mounting base in this invention;

[0025] Figure 4 This is a schematic diagram of the internal structure of the mounting base in this invention;

[0026] Figure 5 for Figure 2 Enlarged structural diagram at point A;

[0027] Figure 6 for Figure 3 Enlarged structural diagram at point B;

[0028] Figure 7 for Figure 4 A magnified structural diagram at point C.

[0029] The following labels are used in the attached diagram: 1. Push plate; 201. Fixing plate; 202. Groove; 301. Fixing rod; 302. Moving disk; 401. First limiting block; 402. Mounting groove; 403. Mounting plate; 404. Second limiting block; 405. Limiting surface; 406. Inclined surface; 407. First sliding groove; 408. Sliding plate; 501. Sleeve; 502. Sleeve rod; 503. Second spring; 601. Annular groove; 602. Airbag; 701. Long groove; 702. Air passage; 801. Second sliding groove; 9. First spring; 10. Moving tube; 11. Mounting base; 12. Through hole; 13. Mounting surface; 14. Mounting hole; 15. Audio equipment body; 16. Fixing ring; 17. Connecting plate; 18. Insert rod; 19. Insertion hole. Detailed Implementation

[0030] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0031] Since the magnitude and direction of the magnetic field generated by the voice coil constantly change with the change of audio current, the interaction of these two magnetic fields causes the voice coil to move perpendicular to the direction of the current in the voice coil. Because the voice coil is connected to the diaphragm, it drives the diaphragm to vibrate. The vibration of the diaphragm causes the air to vibrate, thus producing sound. Audio equipment is a type of loudspeaker.

[0032] After in-depth investigation and research into the installation and disassembly process of audio equipment, the inventor discovered that the sealing performance of audio equipment after installation is poor, allowing external dust and water stains to easily enter. If a sealing ring is used on the sealing surface, it is compressed during installation, making installation and disassembly inconvenient and prone to wear, affecting its sealing effect and service life. Furthermore, most existing audio equipment is fixed to the mounting surface with multiple screws, which is inconvenient for installation and disassembly, and frequent screw removal can lead to loosening of the threaded hole connection. Therefore, the inventor proposed an effectively waterproof audio device to solve these problems.

[0033] The present invention provides the following preferred embodiments.

[0034] like Figures 1-7 As shown, a waterproof audio device includes a mounting surface 13 and an audio device body 15. The mounting surface 13 has a mounting hole 14 on its side wall, into which a mounting base 11 is inserted. A fixing assembly is provided between the mounting base 11 and the mounting surface 13. The end of the mounting base 11 has a through hole 12. A fixing ring 16 is fixedly connected to the side wall of the audio device body 15. Two symmetrically arranged connecting plates 17 are fixedly connected to the end of the fixing ring 16, and a plug rod 18 is fixedly connected to the side wall of the connecting plate 17. The end of the mounting base 11 has two symmetrically arranged insertion holes 19, and a moving tube 10 is connected to each insertion hole 19 via a reset mechanism. A limiting mechanism for limiting the insertion rod 18 is provided on the side wall of the insertion hole 19. The sidewall of the through hole 12 is provided with a sealing mechanism for sealing the sidewall of the audio equipment body 15. This type of audio equipment, which is effectively waterproof, makes the installation and disassembly of the audio equipment body 15 more convenient and quick. At the same time, when the installation is completed, the airbag 602 can fully inflate and abut against the sidewall of the fixing ring 16, thereby ensuring a better sealing effect after the installation of the audio equipment body 15 and preventing the entry of dust and water stains. When disassembling, the airbag 602 can retract and return to its original position, thereby preventing wear on the airbag 602 during installation and disassembly, ensuring its sealing effect and service life. Furthermore, the airbag 602 is not always in a fully tight state against the fixing ring 16 during installation and disassembly, making installation and disassembly more convenient.

[0035] In this embodiment, as Figure 3 and Figure 4 As shown, the reset mechanism is fixedly connected to the fixed rod 301 at the bottom of the socket 19, and the upper end of the fixed rod 301 extends into the moving tube 10 and is fixedly connected to the moving disk 302. The moving disk 302 slides in the moving tube 10, and a reset component is provided between the fixed rod 301 and the moving tube 10 to guide the movement of the moving tube 10.

[0036] In this embodiment, as Figure 3 and Figure 4 As shown, the reset assembly includes a first spring 9 sleeved on the side wall of the fixed rod 301. The upper end of the first spring 9 is fixed to the bottom of the moving tube 10, and the lower end of the first spring 9 is fixed to the bottom of the insertion hole 19, which plays a reset role in the movement of the moving tube 10.

[0037] In this embodiment, as Figure 5 , Figure 6 ,and Figure 7 As shown, the limiting mechanism includes a first limiting block 401 fixedly connected to the side wall of each plug 18, and each plug hole 19 has a mounting groove 402 on its side wall. A mounting plate 403 is fixedly connected to the side wall of the mounting groove 402, and a first sliding groove 407 is provided on the side wall of the mounting plate 403. A sliding plate 408 is connected to the first sliding groove 407 through a telescopic component, and a plurality of second limiting blocks 404 arranged in an array are fixedly connected to the side wall of the sliding plate 408. The second limiting block 404 includes a limiting surface 405 and an inclined surface 406, and the sliding plate 408 is moved by a pushing component. When it is necessary to install the audio equipment body 15, the plug 18 is inserted into the plug hole 19 and abuts against the upper end of the moving tube 10. At the same time, the audio... The device body 15 moves into the through hole 12, thereby pushing the moving tube 10 downward. At the same time, the moving disk 302 is compressed, and the first limiting block 401 slides on the side wall of the inclined surface 406, thereby pushing the second limiting block 404 into the first sliding groove 407. Simultaneously, the second spring 503 is compressed. When the first limiting block 401 passes the inclined surface 406, the second limiting block 404 can extend under the action of the second spring 503, so that the upper side wall of the first limiting block 401 abuts against the limiting surface 405, thereby fixing the plug rod 18 and ensuring that the lower side wall of the connecting plate 17 abuts against the top of the mounting base 11, thereby ensuring that the audio device body 15 is installed in place, making the installation of the audio device body 15 more convenient and quick.

[0038] In this embodiment, as Figure 6 As shown, the telescopic assembly includes a sleeve 502 fixedly connected to the side wall of each sliding plate 408, and a sleeve 501 is sleeved on the side wall of the sleeve 502. The sleeve 501 is fixed to the side wall of the first sliding groove 407, and a second spring 503 is sleeved on the side wall of the sleeve 501, which guides and resets the movement of the sliding plate 408.

[0039] In this embodiment, as Figure 6 and Figure 7As shown, the pushing component includes a second sliding groove 801 formed on the top of the mounting plate 403, and the second sliding groove 801 is connected to the first sliding groove 407. A pushing plate 1 is slidably connected in the second sliding groove 801, and the lower side wall of the pushing plate 1 is fixed to the upper side wall of the sliding plate 408. When it is necessary to disassemble the audio equipment body 15, the pushing plate 1 is moved to make the sliding plate 408 move away from the moving tube 10. The movement of the sliding plate 408 drives the second limiting block 404 to move synchronously. At the same time, the second spring 503 is compressed, so that the second limiting block 404 is disengaged from the first limiting block 401. At this time, the limiting effect on the plug rod 18 is lost, and the moving tube 10 and the plug rod 18 are pushed upward under the action of the moving disk 302, and the plug rod 18 is pushed out from the socket 19, so as to facilitate the disassembly of the audio equipment body 15.

[0040] In this embodiment, as Figure 2 As shown, the fixing assembly includes two symmetrically arranged fixing plates 201 fixedly connected to the side wall of the mounting base 11, and the side wall of the fixing plate 201 is provided with a slot 202 to facilitate the installation and fixing of the mounting base 11 and the mounting surface 13.

[0041] In this embodiment, as Figure 5 , Figure 6 and Figure 7 As shown, the sealing mechanism includes an annular groove 601 formed on the inner sidewall of the through hole 12, and an annularly arranged airbag 602 is fixedly installed in the annular groove 601. The sidewall of the moving tube 10 is provided with an inflation component for inflating the airbag 602, and the moving tube 10 is filled with gas. During installation, when the moving tube 10 moves downward, the moving disk 302 moves upward in the moving tube 10 and inflates the airbag 602 through the inflation component, causing it to gradually expand. When the audio equipment body 15 is installed in place, that is, the fixing ring 16 is aligned with the airbag 602, at this time, the long slot 701 is misaligned with the air passage 702, so that the airbag 602, after being fully inflated, abuts against the sidewall of the fixing ring 16.

[0042] In this embodiment, as Figure 6 and Figure 7 As shown, the inflation assembly includes an elongated slot 701 on the side wall of the moving tube 10, and an L-shaped air passage 702 on the side wall of the through hole 12. The upper end of the air passage 702 is connected to the interior of the airbag 602. When the moving tube 10 moves downward, the moving disc 302 moves upward inside the moving tube 10, thereby compressing the air inside the moving tube 10. At the same time, the air passage 702 overlaps with the elongated slot 701. At this time, the compressed air inside the moving tube 10 enters the airbag 602 through the elongated slot 701 and the air passage 702, causing it to gradually inflate.

[0043] In this embodiment, as Figure 6As shown, a sealing ring is provided on the side wall where the movable disk 302 mates with the movable tube 10 to ensure the sealing performance of the mating of the movable disk 302 and the movable tube 10.

[0044] The specific steps for using this invention are as follows:

[0045] In use, firstly, when it is necessary to install the audio equipment body 15, insert the plug 18 into the plug hole 19 and abut against the upper end of the moving tube 10. At the same time, the audio equipment body 15 moves into the through hole 12, thereby pushing the moving tube 10 to move downward. Simultaneously, the moving disk 302 is compressed, and the first limiting block 401 slides on the side wall of the inclined surface 406, thereby pushing the second limiting block 404 into the first sliding groove 407. At the same time, the second spring 503 is compressed. When the first limiting block 401 passes over the inclined surface 406, the second limiting block 404 can extend under the action of the second spring 503, so that the upper side wall of the first limiting block 401 abuts against the limiting surface 405, thereby fixing the plug 18 and ensuring that the lower side wall of the connecting plate 17 abuts against the top of the mounting base 11, thereby ensuring that the audio equipment body 15 is installed in place, making the installation of the audio equipment body 15 more convenient and quick.

[0046] When it is necessary to disassemble the audio equipment body 15, the push plate 1 is moved to move the sliding plate 408 away from the moving tube 10. The movement of the sliding plate 408 drives the second limiting block 404 to move synchronously. At the same time, the second spring 503 is compressed, so that the second limiting block 404 is disengaged from the first limiting block 401. At this time, the limiting effect on the plug rod 18 is lost. Thus, under the action of the moving plate 302, the moving tube 10 and the plug rod 18 are pushed upward, and the plug rod 18 is pushed out from the socket 19, which facilitates the disassembly of the audio equipment body 15.

[0047] Furthermore, during installation, as the moving tube 10 moves downwards, the moving disk 302 moves upwards within the moving tube 10, thereby compressing the air within the moving tube 10. Simultaneously, the air passage 702 aligns with the elongated slot 701. At this point, the compressed air within the moving tube 10 enters the airbag 602 through the elongated slot 701 and the air passage 702, causing it to gradually expand. When the audio equipment body 15 is installed in place, i.e., the fixing ring 16 is aligned with the airbag 602, the elongated slot 701 and the air passage 702 are misaligned, allowing the airbag 602 to fully expand and abut against the side wall of the fixing ring 16, thus ensuring the audio equipment body 15 is securely installed. The sealing effect after installation is better, preventing dust and water stains from entering. At the same time, when the audio equipment body 15 is disassembled, when the moving tube 10 moves upward, a negative pressure is formed inside the moving tube 10. Meanwhile, the long slot 701 gradually overlaps with the air passage 702 again. At this time, the air in the airbag 602 is drawn back into the moving tube 10, causing the airbag 602 to contract and return to its original position. This can prevent wear on the airbag 602 during installation and disassembly, ensuring its sealing effect and service life. Furthermore, the airbag 602 is not always in a completely tight state against the fixing ring 16 during installation and disassembly, making installation and disassembly more convenient.

[0048] In summary, the beneficial effects of this invention are specifically reflected in making the installation and disassembly of the audio equipment body 15 more convenient and quick. Simultaneously, upon completion of installation, the airbag 602 fully inflates and abuts against the side wall of the fixing ring 16, thereby ensuring a better sealing effect of the audio equipment body 15 after installation and preventing the entry of dust and water stains. During disassembly, the airbag 602 contracts and resets, thus avoiding wear on the airbag 602 during installation and disassembly, ensuring its sealing effect and service life. Furthermore, during installation and disassembly, the airbag 602 is not always in a fully pressed state against the fixing ring 16, making installation and disassembly more convenient.

[0049] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.

Claims

1. A waterproof audio device, comprising a mounting surface (13) and an audio device body (15), wherein the sidewall of the mounting surface (13) is provided with a mounting hole (14), characterized in that, A mounting base (11) is inserted into the mounting hole (14), and a fixing component is provided between the mounting base (11) and the mounting surface (13). A through hole (12) is opened at the end of the mounting base (11), and a fixing ring (16) is fixedly connected to the side wall of the audio equipment body (15). Two symmetrically arranged connecting plates (17) are fixedly connected to the end of the fixing ring (16), and a plug rod (18) is fixedly connected to the side wall of the connecting plate (17). Two symmetrically arranged insertion holes (19) are opened at the end of the mounting base (11), and a moving tube (10) is connected to the insertion hole (19) through a reset mechanism. A limiting mechanism for limiting the insertion rod (18) is provided on the side wall of the insertion hole (19), and a sealing mechanism for sealing the side wall of the audio equipment body (15) is provided on the side wall of the through hole (12).

2. The audio device capable of effective waterproofing according to claim 1, characterized in that, The reset mechanism is fixedly connected to the fixing rod (301) at the bottom of the socket (19), and the upper end of the fixing rod (301) extends into the moving tube (10) and is fixedly connected to the moving disk (302). The moving disk (302) slides in the moving tube (10), and a reset component is provided between the fixing rod (301) and the moving tube (10).

3. The audio device capable of effective waterproofing according to claim 2, characterized in that, The reset assembly includes a first spring (9) sleeved on the side wall of the fixed rod (301), the upper end of the first spring (9) being fixed to the bottom of the moving tube (10), and the lower end of the first spring (9) being fixed to the bottom of the insertion hole (19).

4. The audio device capable of effective waterproofing according to claim 3, characterized in that, The limiting mechanism includes a first limiting block (401) fixedly connected to the side wall of each plug (18), and each plug hole (19) has an installation groove (402) on its side wall. An installation plate (403) is fixedly connected to the side wall of the installation groove (402), and a first sliding groove (407) is provided on the side wall of the installation plate (403). A sliding plate (408) is connected to the first sliding groove (407) through a telescopic component. A plurality of second limiting blocks (404) arranged in an array are fixedly connected to the side wall of the sliding plate (408). The second limiting block (404) includes a limiting surface (405) and an inclined surface (406). The movement of the sliding plate (408) is driven by a pushing component.

5. The audio device capable of effective waterproofing according to claim 4, characterized in that, The telescopic assembly includes a sleeve (502) fixedly connected to the side wall of each sliding plate (408), and a sleeve (501) is sleeved on the side wall of the sleeve (502). The sleeve (501) is fixed to the side wall of the first sliding groove (407), and a second spring (503) is sleeved on the side wall of the sleeve (501).

6. The audio device capable of effective waterproofing according to claim 4, characterized in that, The pushing component includes a second sliding groove (801) formed on the top of the mounting plate (403), and the second sliding groove (801) is connected to the first sliding groove (407). A pushing plate (1) is slidably connected in the second sliding groove (801), and the lower side wall of the pushing plate (1) is fixed to the upper side wall of the sliding plate (408).

7. The audio device capable of effective waterproofing according to claim 1, characterized in that, The fixing component includes two symmetrically arranged fixing plates (201) fixedly connected to the side wall of the mounting base (11), and the side wall of the fixing plate (201) is provided with a slot (202).

8. The audio device capable of effective waterproofing according to claim 1, characterized in that, The sealing mechanism includes an annular groove (601) opened on the inner sidewall of the through hole (12), and an annularly arranged airbag (602) is fixedly installed in the annular groove (601). The sidewall of the moving tube (10) is provided with an inflation component for inflating the airbag (602), and the moving tube (10) is filled with gas.

9. A waterproof audio device according to claim 8, characterized in that, The inflation assembly includes a long slot (701) opened on the side wall of the moving tube (10), and an L-shaped air passage (702) opened on the side wall of the through hole (12), the upper end of the air passage (702) being connected to the interior of the airbag (602).

10. A waterproof audio device according to claim 2, characterized in that, A sealing ring is provided on the side wall of the movable disk (302) that cooperates with the movable tube (10).

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