Fixing structure and fixing method for locomotive horn audio cable

Abstract

The invention belongs to the technical field of fixing structures, and discloses a locomotive horn audio cable fixing structure and a fixing method.The locomotive horn audio cable fixing structure comprises a cable fixing box, a top cover is installed at the top end of the cable fixing box, lug plates are fixedly connected to the side walls of the cable fixing box and the top cover, the lug plates are evenly arranged, and a mounting hole is formed in each lug plate; a plurality of connecting grooves are formed in the top end of the wire fixing box, a connecting block is embedded in each connecting groove, the connecting blocks are fixedly installed at the bottom end of the top cover, and wire penetrating grooves are formed in the inner walls of the wire fixing box and the top cover. When the device is used, one end of the locomotive horn audio cable penetrates in from the threading groove in one side of the cable fixing box, then the cable is wound around the winding plate at the end of each fixing plate in an S shape and penetrates out from the threading groove in the other side of the cable fixing box, a cable tie is prevented from making direct contact with the audio cable, abrasion to the audio cable is avoided, the attractiveness of the device is improved, and the service life of the audio cable is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of fixing structures, and in particular relates to a fixing structure and a fixing method for a motorcycle speaker audio line. Background Art

[0002] The motorcycle speaker audio cable is a cable designed to connect the audio equipment (such as signal source, power amplifier, etc.) on the motorcycle with the speaker. In the locomotive sound system, it plays a vital role, mainly responsible for transmitting audio signals to ensure that the sound can be played from the speaker in a clear and accurate way;

[0003] During the running of the locomotive, due to the unevenness of the road and the vibration of the vehicle, the audio cable may become loose if it is not properly fixed. This looseness may cause poor contact between the audio cable and the device, and may even cause the audio signal to be interrupted. Therefore, correctly fixing the audio cable of the locomotive speaker is very important to ensure the normal operation of the speaker and extend the service life of the audio cable;

[0004] Currently, motorcycle speaker audio cables are usually installed using fixing clips or binding straps. However, this installation method may impose unnecessary pressure or cause wear on the audio cables and lack aesthetics. Summary of the invention

[0005] The object of the present invention is to provide a fixing structure and a fixing method for a motorcycle speaker audio cable to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fixing structure of a motorcycle speaker audio line, comprising a wire fixing box, a top cover is installed on the top of the wire fixing box, the side walls of the wire fixing box and the top cover are fixedly connected with ear plates, the ear plates are evenly arranged, and each ear plate has a mounting hole inside, a connecting groove is opened on the top of the wire fixing box, and a plurality of connecting grooves are provided, and a connecting block is embedded inside each connecting groove, and the connecting block is fixedly installed on the bottom end of the top cover, the inner walls of the wire fixing box and the top cover are opened with threading grooves, and two sets of wire fixing components are arranged inside the wire fixing box;

[0007] Among them, the wire fixing component includes a fixing plate fixedly installed inside the wire fixing box, and the fixing plates are evenly arranged in multiple numbers. Both ends of each fixing plate are slidably installed with a winding plate through a moving component, and the top of each winding plate is fixedly installed with a limiting plate.

[0008] As a further technical solution of the present invention, the movable component includes a rotating shaft arranged under the fixed plate, the rotating shaft is rotatably installed inside the wire fixing box, the outer wall of the rotating shaft is provided with a sliding groove, two of the sliding grooves are symmetrically arranged, the inner wall of the sliding groove is slidably connected with a slider, the slider is fixedly installed on the inner wall of the movable plate, and the movable plate is fixedly installed on the bottom end of the winding plate.

[0009] As a further technical solution of the present invention, a pulley set is installed on the outer wall of the rotating shaft.

[0010] As a further technical solution of the present invention, a clamping block is installed on the top of the limiting plate, and the clamping block is embedded in the inside of the clamping slot. The clamping slot is opened inside the top cover and is evenly arranged.

[0011] As a further technical solution of the present invention, the clamping block is slidably connected to the limiting plate, and a spring is installed between the clamping block and the limiting plate.

[0012] As a further technical solution of the present invention, a first airbag is fixedly installed inside each of the threading grooves.

[0013] As a further technical solution of the present invention, the inner wall of the wiring box is provided with heat dissipation holes, and the heat dissipation holes are evenly distributed.

[0014] As a further technical solution of the present invention, a connecting tube is fixedly connected to the bottom end of the first airbag, a second airbag is fixedly installed on the end of the connecting tube away from the first airbag, the second airbag is arranged inside the wire box, a pressure plate is arranged on the top end of the second airbag, and the pressure plate is arranged at the bottom end of the connecting block.

[0015] As a further technical solution of the present invention, the pressing plate is slidably installed inside the wire fixing box, and a tension spring is installed between the pressing plate and the wire fixing box.

[0016] A method for fixing a fixing structure of a motorcycle speaker audio line comprises the following steps:

[0017] S1: When fixing the motorcycle horn audio cable, first insert one end of the motorcycle horn audio cable through the wire groove on one side of the wire box, then pass the wire around the winding plate at the end of each fixing plate in an S shape, and pass it out from the wire groove on the other side of the wire box;

[0018] S2: Then adjust the length of the fixed plate and the winding plate according to the length and installation position of the audio cable, slide one of the winding plates at both ends of the fixed plate, the movement of the winding plate drives the movement of the movable plate, the movement of the movable plate drives the movement of the slider, so that the slider slides on the inner wall of the slide groove, drives the rotation of the rotating shaft, and the rotation of the rotating shaft drives the other rotating shafts to rotate through the pulley group. Similarly, when the rotating shaft rotates, it drives the slide groove to rotate and causes the slider to move, so that the winding plate moves, and the two winding plates at both ends of the fixed plate move outward to stretch the audio cable;

[0019] S3: Then the connecting block is inserted into the connecting groove. When the connecting block is pressed downward, the pressing plate is driven downward. The pressing plate squeezes the gas inside the second airbag and transmits it to the inside of the first airbag through the connecting pipe, so that the first airbag is inflated.

[0020] S4: After the top cover moves down and fits on the top of the wire fixing box, the card slot is sleeved on the outer wall of the card block to fix the position of the winding plate. At the same time, the first airbags at the relative positions of the top cover and the wire fixing box fit together to form a full circle, thereby sealing the audio cable and the wire fixing box or the top cover.

[0021] S5: Finally, install through the ear plate installed on the side wall of the wire box and the top cover.

[0022] The beneficial effects of the present invention are as follows:

[0023] 1. The present invention sets a wire fixing component. When fixing the audio line of the locomotive horn, firstly, one end of the audio line of the locomotive horn is inserted into the wire threading groove on one side of the wire fixing box. Then, the wire is passed around the winding plate at the end of each fixing plate in an S shape and passed out from the wire threading groove on the other side of the wire fixing box. Then, the connecting block is embedded in the interior of the connecting groove so that the top cover is fitted on the top of the wire fixing box. At the same time, the top of the winding plate is fitted with the bottom of the top cover. Finally, the ear plates installed on the side walls of the wire fixing box and the top cover can be installed. The device can be connected by inserting bolts and cable ties into the interior of the mounting holes. The wire fixing box and the top cover are installed inside the locomotive. The device supports and limits the audio line through the winding plate to prevent the audio line from being too long and being located outside the device. The device has a certain aesthetics. After limiting the winding plate, the audio line is installed on the locomotive through the combination of the wire fixing box and the top cover to prevent the cable tie from directly contacting the audio line and causing wear to it. This not only improves the aesthetics of the device, but also improves the service life of the audio line.

[0024] 2. The present invention provides a movable component. When installing the audio cable, one of the winding plates at both ends of the sliding fixed plate is moved. The movement of the winding plate drives the movement of the movable plate. The movement of the movable plate drives the movement of the slider, so that the slider slides on the inner wall of the slide groove, driving the rotation of the rotating shaft, thereby moving the other winding plate, so that the two winding plates at both ends of the fixed plate move outward to stretch the audio cable, change the distance between the fixed plate and the winding plate, thereby facilitating the adjustment of the length of the audio cable, being suitable for audio cables of different lengths and different installation conditions, and improving the adaptability and flexibility of the device.

[0025] 3. The present invention provides a first airbag. When the top cover is installed on the top of the wire fixing box, the first airbags at the relative positions of the top cover and the wire fixing box fit together to form a full circle, thereby sealing the audio cable and the wire fixing box or the top cover. This can not only increase the stability of the audio cable in the wire fixing box and prevent poor connection or failure due to vibration or looseness, but also prevent moisture and dust from entering the fixing box, thereby protecting the audio cable from corrosion and damage and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;

[0028] Figure 3 For the present invention Figure 2 A schematic diagram of the structure enlargement in the middle;

[0029] Figure 4 This is a disassembled diagram of the overall structure of the present invention;

[0030] Figure 5 It is a schematic cross-sectional view of the structure of the wire fixing box of the present invention;

[0031] Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure at B in the middle;

[0032] Figure 7 It is a schematic cross-sectional view of the structure of the winding plate of the present invention.

[0033] In the figure: 1. wire box; 2. top cover; 3. ear plate; 4. wire threading groove; 5. fixed plate; 6. winding plate; 7. movable plate; 8. slider; 9. slide groove; 10. rotating shaft; 11. pulley set; 12. limit plate; 13. connecting block; 14. first air bag; 15. pressure plate; 16. second air bag; 17. connecting pipe; 18. tension spring; 19. clamping block; 20. clamping groove; 21. spring; 22. heat dissipation hole; 23. mounting hole; 24. connecting groove. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] like Figures 1 to 7 As shown, in an embodiment of the present invention, a fixing structure of a motorcycle speaker audio line includes a wire fixing box 1, a top cover 2 is installed on the top of the wire fixing box 1, and the side walls of the wire fixing box 1 and the top cover 2 are fixedly connected with ear plates 3, the ear plates 3 are evenly arranged, and each ear plate 3 has a mounting hole 23 inside, a connecting groove 24 is opened on the top of the wire fixing box 1, and a plurality of connecting grooves 24 are provided, and a connecting block 13 is embedded inside each connecting groove 24, and the connecting block 13 is fixedly installed on the bottom end of the top cover 2, and the inner walls of the wire fixing box 1 and the top cover 2 are opened with a threading groove 4, and two sets of wire fixing components are arranged inside the wire fixing box 1;

[0036] Among them, the wire fixing component includes a fixing plate 5 fixedly installed inside the wire fixing box 1, and multiple fixing plates 5 are evenly arranged. Both ends of each fixing plate 5 are slidably installed with a winding plate 6 through a moving component, and the top of each winding plate 6 is fixedly installed with a limiting plate 12.

[0037] When fixing the locomotive horn audio line, firstly, insert one end of the locomotive horn audio line through the threading groove 4 on one side of the wire box 1, then pass the line around the winding plate 6 at the end of each fixing plate 5 in an S shape, and pass it out from the threading groove 4 on the other side of the wire box 1, and then embed the connecting block 13 into the inside of the connecting groove 24, so that the top cover 2 fits on the top of the wire box 1, and at the same time, the top of the winding plate 6 fits with the bottom of the top cover 2, and finally installs it through the ear plate 3 installed on the side wall of the wire box 1 and the top cover 2, and can be connected by bolts and cable ties inserted into the inside of the mounting hole 23, and the wire box 1 and the top cover 2 are installed inside the locomotive;

[0038] The device supports and limits the audio cable through the winding plate 6 to prevent the audio cable from being too long and being outside the device, and has a certain aesthetics. After limiting the winding plate 6, the audio cable is installed on the locomotive through the combination of the fixed wire box 1 and the top cover 2 to prevent the cable tie from directly contacting the audio cable and causing wear to the audio cable, which not only improves the aesthetics of the device, but also increases the service life of the audio cable.

[0039] The connection block 13 and the connection slot 24 are magnetically connected, so that the top cover 2 is installed on the top of the wiring box 1;

[0040] Since most motorcycle horn audio cables are double-wired, the device is configured to be used with a double-wire motorcycle horn audio cable, so two sets of fixed-wire components are provided, and the two sets of fixed-wire components are symmetrically arranged.

[0041] like Figure 5 , Figure 6 and Figure 7 As shown, the moving component includes a rotating shaft 10 arranged below the fixed plate 5, the rotating shaft 10 is rotatably installed inside the wire fixing box 1, the outer wall of the rotating shaft 10 is provided with a slide groove 9, two slide grooves 9 are symmetrically arranged, the inner wall of the slide groove 9 is slidably connected with a slider 8, the slider 8 is fixedly installed on the inner wall of the moving plate 7, and the moving plate 7 is fixedly installed at the bottom end of the winding plate 6.

[0042] The two slide grooves 9 are symmetrically distributed, so that the two winding plates 6 can move relative to each other;

[0043] When installing the audio cable, one of the winding plates 6 at both ends of the sliding fixed plate 5 is moved, and the movement of the winding plate 6 drives the movement of the movable plate 7, and the movement of the movable plate 7 drives the movement of the slider 8, so that the slider 8 slides on the inner wall of the slide groove 9, driving the rotation of the rotating shaft 10, thereby moving the other winding plate 6, so that the two winding plates 6 at both ends of the fixed plate 5 move outward to stretch the audio cable, change the distance between the fixed plate 5 and the winding plate 6, so as to facilitate the adjustment of the length of the audio cable, adapt to audio cables of different lengths and different installation conditions, and improve the adaptability and flexibility of the device.

[0044] like Figure 5 and Figure 6 As shown, a pulley set 11 is installed on the outer wall of the rotating shaft 10 .

[0045] The rotating shaft 10 in each set of wire fixing components is connected by a pulley set 11, so that when adjusting the length between the fixed plate 5 and the winding plate 6, moving one of the winding plates 6 can drive the other winding plates 6 to move synchronously, thereby improving efficiency.

[0046] like Figure 5 , Figure 6 and Figure 7 As shown, a clamping block 19 is installed at the top end of the limiting plate 12 , and the clamping block 19 is embedded in the inside of the clamping slot 20 . The clamping slots 20 are opened inside the top cover 2 and are evenly arranged.

[0047] The end of the card block 19 is configured as an arc surface, so that it can be more easily inserted into the card slot 20;

[0048] When the top cover 2 is installed on the top of the wire fixing box 1, the card block 19 is embedded in the card slot 20, so as to fix the position of the winding plate 6 to prevent the winding plate 6 from being displaced due to vibration during the use of the locomotive, thereby improving the stability of the audio cable when being fixed.

[0049] like Figure 7 As shown, the clamping block 19 is slidably connected to the limiting plate 12 , and a spring 21 is installed between the clamping block 19 and the limiting plate 12 .

[0050] The spring 21 allows the block 19 to slide a certain distance inside the limit plate 12 , so that after the winding plate 6 is moved and adjusted to different distances, the limit plate 12 can be easily inserted into the slot 20 and engaged therewith.

[0051] like Figures 1 to 5 As shown, a first air bag 14 is fixedly installed inside each threading groove 4 .

[0052] When the top cover 2 is installed on the top of the wiring box 1, the first airbags 14 at the relative positions of the top cover 2 and the wiring box 1 fit together to form a full circle, which seals the audio cable and the wiring box 1 or the top cover 2. This not only increases the stability of the audio cable in the wiring box 1 and prevents poor connection or failure due to vibration or looseness, but also prevents moisture and dust from entering the fixing box, thereby protecting the audio cable from corrosion and damage and extending its service life.

[0053] like Figure 5 As shown, the inner wall of the wiring box 1 is provided with heat dissipation holes 22, and the heat dissipation holes 22 are evenly distributed.

[0054] The heat dissipation holes 22 allow the wiring box 1 to dissipate heat normally.

[0055] like Figure 3 As shown, the bottom end of the first airbag 14 is fixedly connected with a connecting tube 17, and the end of the connecting tube 17 away from the first airbag 14 is fixedly installed with a second airbag 16, the second airbag 16 is arranged inside the wire fixing box 1, and the top of the second airbag 16 is provided with a pressure plate 15, and the pressure plate 15 is arranged at the bottom end of the connecting block 13.

[0056] When the top cover 2 is installed on the top of the wiring box 1, the connecting block 13 is embedded in the connecting groove 24. The pressing plate 15 is driven downward during the pressing of the connecting block 13. The pressing plate 15 squeezes the gas inside the second airbag 16 and transmits it to the inside of the first airbag 14 through the connecting tube 17, so that the first airbag 14 is inflated, and its sealing effect is ensured when audio cables of different thicknesses are used.

[0057] like Figure 3 As shown, the pressing plate 15 is slidably installed inside the wire fixing box 1 , and a tension spring 18 is installed between the pressing plate 15 and the wire fixing box 1 .

[0058] When the pressure plate 15 is forced to move downward, the tension spring 18 is deformed to store elastic potential energy. When the top cover 2 is removed from the wiring box 1, the elastic potential energy is released by the tension spring 18 to drive the pressure plate 15 to move upward and reset, so that the gas inside the first airbag 14 can enter the second airbag 16 through the connecting tube 17, making it easy to take out the audio cable.

[0059] A method for fixing a fixing structure of a motorcycle speaker audio line comprises the following steps:

[0060] S1: When fixing the motorcycle horn audio cable, first insert one end of the motorcycle horn audio cable through the threading groove 4 on one side of the wire fixing box 1, then pass the wire around the winding plate 6 at the end of each fixing plate 5 in an S shape, and pass it out from the threading groove 4 on the other side of the wire fixing box 1;

[0061] S2: Then, the lengths of the fixed plate 5 and the winding plate 6 are adjusted according to the length and installation position of the audio cable, and one of the winding plates 6 at both ends of the fixed plate 5 is slid. The movement of the winding plate 6 drives the movement of the movable plate 7, and the movement of the movable plate 7 drives the movement of the slider 8, so that the slider 8 slides on the inner wall of the slide groove 9, driving the rotation of the rotating shaft 10. The rotation of the rotating shaft 10 drives the other rotating shafts 10 to rotate through the pulley group 11. Similarly, when the rotating shaft 10 rotates, it drives the slide groove 9 to rotate, prompting the slider 8 to move, thereby moving the winding plate 6, so that the two winding plates 6 at both ends of the fixed plate 5 move outward to stretch the audio cable;

[0062] S3: Then the connecting block 13 is inserted into the connecting groove 24. The pressing plate 15 is driven downward during the pressing of the connecting block 13. The pressing plate 15 squeezes the gas inside the second airbag 16 and transmits it to the inside of the first airbag 14 through the connecting pipe 17, so that the first airbag 14 is inflated.

[0063] S4: After the top cover 2 moves down and fits on the top of the wire fixing box 1, the card slot 20 is sleeved on the outer wall of the card block 19 to fix the position of the winding plate 6. At the same time, the first airbag 14 at the relative position of the top cover 2 and the wire fixing box 1 fits together to form a full circle, so as to seal the audio cable and the wire fixing box 1 or the top cover 2;

[0064] S5: Finally, the ear plates 3 installed on the side walls of the wiring box 1 and the top cover 2 are installed.

[0065] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixing structure for a motorcycle speaker audio line, comprising a fixing box (1), characterized in that: The top of the wiring box (1) is provided with a top cover (2), the side walls of the wiring box (1) and the top cover (2) are fixedly connected with ear plates (3), the ear plates (3) are evenly arranged, each ear plate (3) is provided with a mounting hole (23), the top of the wiring box (1) is provided with a connecting groove (24), a plurality of connecting grooves (24) are provided, each connecting groove (24) is embedded with a connecting block (13), the connecting block (13) is fixedly installed at the bottom of the top cover (2), the inner walls of the wiring box (1) and the top cover (2) are provided with wire threading grooves (4), and two groups of wiring components are provided inside the wiring box (1); The wire fixing assembly comprises a fixing plate (5) fixedly mounted inside the wire fixing box (1), a plurality of fixing plates (5) are evenly arranged, both ends of each fixing plate (5) are slidably mounted with a winding plate (6) via a moving assembly, and a limiting plate (12) is fixedly mounted on the top of each winding plate (6).

2. The fixing structure of a motorcycle speaker audio cable according to claim 1, characterized in that: The moving assembly comprises a rotating shaft (10) arranged below the fixed plate (5), the rotating shaft (10) being rotatably mounted inside the wire fixing box (1), the outer wall of the rotating shaft (10) being provided with a slide groove (9), two of the slide grooves (9) being symmetrically arranged, the inner wall of the slide groove (9) being slidably connected with a slider (8), the slider (8) being fixedly mounted on the inner wall of the moving plate (7), and the moving plate (7) being fixedly mounted on the bottom end of the winding plate (6).

3. The fixing structure of a motorcycle speaker audio cable according to claim 2, characterized in that: A pulley set (11) is installed on the outer wall of the rotating shaft (10).

4. The fixing structure of a motorcycle speaker audio cable according to claim 1, characterized in that: A clamping block (19) is installed at the top end of the limiting plate (12), and the clamping block (19) is embedded in a clamping slot (20). The clamping slot (20) is opened inside the top cover (2) and is evenly arranged.

5. The fixing structure of a motorcycle speaker audio cable according to claim 4, characterized in that: The clamping block (19) is slidably connected to the limiting plate (12), and a spring (21) is installed between the clamping block (19) and the limiting plate (12).

6. The fixing structure of a motorcycle speaker audio cable according to claim 1, characterized in that: A first air bag (14) is fixedly installed inside each of the threading grooves (4).

7. The fixing structure of a motorcycle speaker audio cable according to claim 1, characterized in that: The inner wall of the wire fixing box (1) is provided with heat dissipation holes (22), and the heat dissipation holes (22) are evenly distributed.

8. The fixing structure of a motorcycle speaker audio cable according to claim 6, characterized in that: The bottom end of the first airbag (14) is fixedly connected to a connecting tube (17); an end of the connecting tube (17) away from the first airbag (14) is fixedly mounted with a second airbag (16); the second airbag (16) is arranged inside the wire fixing box (1); a pressure plate (15) is arranged at the top end of the second airbag (16); and the pressure plate (15) is arranged at the bottom end of the connecting block (13).

9. The fixing structure of a motorcycle speaker audio cable according to claim 8, characterized in that: The pressing plate (15) is slidably mounted inside the wire fixing box (1), and a tension spring (18) is mounted between the pressing plate (15) and the wire fixing box (1).

10. A method for fixing a fixing structure of a motorcycle horn audio line, the method being applicable to the fixing structure of a motorcycle horn audio line according to claims 1 to 9, characterized in that: The following steps are involved: S1: When fixing the motorcycle horn audio cable, firstly, one end of the motorcycle horn audio cable is inserted through the wire groove (4) on one side of the wire fixing box (1), and then the cable is passed through the winding plate (6) at the end of each fixing plate (5) in an S shape and then passed out from the wire groove (4) on the other side of the wire fixing box (1); S2: Then, the lengths of the fixed plate (5) and the winding plate (6) are adjusted according to the length and installation position of the audio cable, and one of the winding plates (6) at both ends of the fixed plate (5) is slid. The movement of the winding plate (6) drives the movement of the movable plate (7), and the movement of the movable plate (7) drives the movement of the slider (8), so that the slider (8) slides on the inner wall of the slide groove (9), drives the rotation of the rotating shaft (10), and the rotation of the rotating shaft (10) drives the other rotating shafts (10) to rotate through the pulley group (11). Similarly, when the rotating shaft (10) rotates, it drives the slide groove (9) to rotate, prompting the slider (8) to move, thereby moving the winding plate (6), so that the two winding plates (6) at both ends of the fixed plate (5) move outward to stretch the audio cable; S3: Then the connecting block (13) is inserted into the connecting groove (24). When the connecting block (13) is pressed downward, the pressing plate (15) is driven downward. The pressing plate (15) squeezes the gas inside the second airbag (16) and transmits it to the inside of the first airbag (14) through the connecting pipe (17), so that the first airbag (14) is inflated; S4: After the top cover (2) moves downward and fits on the top of the wire fixing box (1), the card slot (20) is sleeved on the outer wall of the card block (19) to fix the position of the winding plate (6), and at the same time, the first air bag (14) at the relative position of the top cover (2) and the wire fixing box (1) fits together to form a full circle, thereby sealing the audio cable and the wire fixing box (1) or the top cover (2); S5: Finally, the wiring box (1) and the ear plate (3) installed on the side wall of the top cover (2) are installed.

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