High-sensitivity sealed sound box

Abstract

The invention belongs to the technical field of sound boxes, and provides a high-sensitivity sealed sound box which comprises a shell, an opening is formed in one side of the shell, a sound box assembly is arranged in an inner cavity of the shell, a sealing mechanism used for sealing the opening is arranged in the shell and located on the outer side of the sound box assembly, and the sealing mechanism comprises a sliding plate, a moving plate and sealing cloth. The sliding plates are installed on the two sides of one end in the shell correspondingly, the moving plate is slidably connected between the sliding plates, the sealing cloth is connected to the top of the moving plate, and a winding assembly used for winding the sealing cloth so as to open and close the opening is arranged in the shell. The two sides of the moving plate are each provided with a moving assembly used for moving the moving plate so that the moving plate can drive the closing cloth to open and close the opening. The loudspeaker box has the advantages that the opening of the shell can be effectively sealed through the sealing mechanism, the sealing performance of the loudspeaker box is enhanced, the loudspeaker box assembly can be protected, dust, water and other impurities are prevented from entering the loudspeaker box, and the service life of the loudspeaker box is prolonged.

Description

Technical Field

[0001] The present application belongs to the technical field of sound boxes, and in particular relates to a high-sensitivity sealed sound box. Background Art

[0002] The speaker is the terminal of the entire audio system. Its function is to convert audio electrical energy into corresponding sound energy and radiate it into space. It is an extremely important component of the audio system and is responsible for converting electrical signals into sound signals for direct human hearing.

[0003] For example, patent publication number CN206743513U discloses a sealed speaker, including a shell and a speaker. The speaker is arranged on the outside of the shell and forms a closed cavity with the shell. The speaker includes U iron or T iron, magnet, washer, basin frame, voice coil, sound basin and dust cover from the inside to the outside. At least one air vent connected to the closed cavity is provided on the shell. With this arrangement, even if the power device of the speaker itself heats up when the speaker is working and the air in the closed cavity expands due to heat, the sound basin and the voice coil will not bulge outward, which can ensure that the voice coil of the speaker does not deviate from the center of the magnetic gap of the magnetic circuit, thereby ensuring that the speaker is not distorted.

[0004] However, the speaker in the above patent is exposed to the outside. During long-term use, dust in the air is easy to adhere to the surface of the speaker, thereby affecting the sound quality of the speaker. At the same time, the speaker is exposed to the outside, and the vibration membrane is easy to be scratched, thereby reducing the service life of the speaker. Summary of the invention The purpose of this application is to provide a high-sensitivity sealed speaker that can seal and protect the speaker when not in use, thereby avoiding speaker damage and increasing the service life of the speaker.

[0005] The technical solution adopted by the present application to solve the above-mentioned technical problems is as follows: a high-sensitivity sealed speaker is proposed, comprising: a shell, one side of the shell is provided with an opening, the inner cavity of the shell is provided with a speaker assembly, the inside of the shell and located on the outside of the speaker assembly is provided with a closing mechanism for closing the opening to protect the speaker assembly, the closing mechanism comprises a slide plate, a movable plate and a closing cloth, the slide plates are respectively installed on both sides of one end of the shell, the movable plate is slidably connected between the slide plates, the front and rear ends of the top of the shell are rotatably connected to guide rods through bearing seats, the closing cloth is rotatably connected to the guide rod, and the closing cloth is connected to the top of the movable plate, a winding assembly for rolling up the closing cloth to open and close the opening is provided in the shell, and moving assemblies for moving the movable plate so that the movable plate drives the closing cloth to open and close the opening are provided on both sides of the movable plate.

[0006] Through the above technical features, when it is necessary to close the opening, the moving assembly drives the moving plate to slide between the slides, and the moving plate drives the top closing cloth to move along the guide rod until the closing cloth completely covers the opening, thereby achieving a closing effect; when it is necessary to open the opening, the moving assembly drives the moving plate to slide in the opposite direction, and the closing cloth is rolled up by the rolling assembly under the guidance of the guide rod, and the opening is opened. The present application can effectively close the opening of the shell through the closing mechanism to prevent interference from external noise, while also avoiding the leakage of sound, enhancing the sound performance of the speaker, and at the same time enhancing the sealing of the speaker, and can protect the speaker assembly to prevent dust, moisture and other impurities from entering the interior of the speaker, thereby extending the service life of the speaker, and through the moving assembly and the rolling assembly, the opening can be conveniently opened or closed, which is easy to operate and improves the convenience of use.

[0007] Preferably, the winding assembly includes a winding roller and a driving motor, both ends of the winding roller are rotatably connected to the bottom of the shell through a bearing seat, the closed cloth is wound on the winding roller, the driving motor is installed on the bottom of the shell, and the output shaft of the driving motor is transmission-connected to the winding roller through a bevel gear.

[0008] Through the above-mentioned technical features, when the opening needs to be opened, the driving motor is started, the winding roller rotates counterclockwise, the closing cloth is pulled back from the opening and rolled up on the winding roller, thereby opening the opening; when the opening needs to be closed, the driving motor rotates in the opposite direction, the winding roller releases the closing cloth, and the moving plate moves under the action of the moving component, so that the closing cloth covers the opening and completes the closure. Through the control of the driving motor, the automatic winding and releasing of the closing cloth can be realized without manual operation, thereby improving the convenience of use.

[0009] Preferably, the moving assembly includes a winding disk, a limit block, a threaded rod, a threaded tube and a moving rope, the winding disk is transmission-connected to both ends of the winding roller, the limit block is connected to one side of the moving plate, the threaded rod is hinged at the bottom end of the limit block, the threaded tube is threadedly connected to the outside of the threaded rod, the moving rope is connected to the bottom end of the threaded tube, the moving rope is wound around the inner side of the winding disk, and the winding directions of the moving rope and the closing cloth are opposite.

[0010] Through the above technical features, since the reeling directions of the moving rope and the closing cloth are opposite, when the driving motor is started and the reeling roller rotates counterclockwise to reel the closing cloth to open the opening, the reeling disc will release the moving rope, and the threaded tube will move upward on the threaded rod, thereby pushing the moving plate to move and open the closing cloth; conversely, when the reeling roller releases the closing cloth to close the opening, the reeling disc will reel the moving rope, and the threaded tube will move downward on the threaded rod, and the moving plate will move accordingly, so that the closing cloth covers the opening. Through the linkage between the moving component and the reeling component, the automatic opening and closing of the closing cloth is realized without manual operation, which improves the convenience and automation of use.

[0011] Preferably, the moving component also includes a guide wheel, which is arranged on one side of the skateboard and connected to the bottom of the shell. The moving rope is rotatably connected to the guide wheel, and the guide wheel is used to guide the winding of the moving rope.

[0012] Through the above technical features, the guide wheel is set on one side of the slide plate and connected to the bottom of the shell to form a fixed rotation point. When the moving rope is wound or released, it will slide and turn along the wheel surface of the guide wheel. Due to the guiding effect of the guide wheel, the moving rope can move according to the predetermined path, ensuring that the winding and releasing process of the moving rope is smooth and orderly. Through the guiding effect of the guide wheel, the winding efficiency is improved, the wear and breakage of the moving rope that may occur during the winding or releasing process is reduced, the service life of the moving rope is extended, and the moving rope is protected. In addition, the guiding effect of the guide wheel makes the movement of the moving rope more stable, avoiding problems caused by the swing or deviation of the moving rope, and improving the stability of the entire moving assembly.

[0013] Preferably, the speaker assembly includes a high-sensitivity speaker, a storage box and a fixing plate, the storage box is arranged in the shell, the high-sensitivity speaker is arranged in the storage box, the fixing plate is connected to one side of the storage box, the fixing plate is provided with a locking mechanism, the locking mechanism is used to lock the fixing plate in the storage box, and a shock-absorbing mechanism is provided between the top and bottom of the storage box and the shell, the shock-absorbing mechanism is used to absorb shock to the storage box so as to improve the fixity of the shell installation.

[0014] Through the above technical features, the fixing plate is connected to one side of the storage box, and the fixing plate is locked in the storage box through the locking mechanism, so that the high-sensitivity speaker is locked in the storage box to prevent the speaker from being displaced or damaged when vibrating or moving. The shock-absorbing mechanism is arranged between the top and bottom of the storage box and the shell to reduce the impact of external vibration on the speaker. When the speaker is subjected to external vibration, the shock-absorbing mechanism can effectively absorb and disperse the vibration energy to maintain the stability of the speaker and the clarity of the sound quality; and the high-sensitivity speaker will vibrate when working, and the shock-absorbing mechanism can damp the vibration, reduce the impact of the vibration on the shell, and avoid the shell from affecting the stability of the shell installation due to vibration.

[0015] Preferably, the locking mechanism includes a locking tongue and a return spring, a plurality of slots are provided at intervals on both sides of the fixing plate, the return spring is connected to the concave bottom of the slot, one end of the locking tongue is slidably inserted in the slot and connected to the return spring, one end of the locking tongue extends out of the slot, a plurality of lock holes are provided on the inner sides of the storage box corresponding to the slots, and one end of the locking tongue extends into the lock hole.

[0016] Through the above technical features, the high-sensitivity speaker is placed in the storage box so that the extended end of the lock tongue enters the lock hole inside the storage box. At this time, the lock tongue is fixed by the lock hole, and the reset spring is in a stretched state, so as to achieve locking between the fixed plate and the storage box, thereby fixing the high-sensitivity speaker in the storage box; when unlocking is required, the lock tongue overcomes the elastic force of the reset spring, compresses the reset spring, withdraws the lock tongue from the lock hole, and retracts it into the slot. At this time, the locking relationship between the fixed plate and the storage box is released, and the high-sensitivity speaker can be easily taken out of the storage box. The locking mechanism of the present application has high reliability, is not easily affected by the outside world, and is easy and simple to operate.

[0017] Preferably, a driving plate is connected to one side of the locking tongue, a groove is provided at one end of the driving plate, a movable groove is provided on the fixed plate, a push plate is slidably connected in the movable groove, a card block is provided on the push plate, the card block is engaged with the groove, a card slot is provided on the movable groove corresponding to the card block, and the card slot is connected to the movable groove.

[0018] Through the above-mentioned technical features, the card block on the push plate is engaged with the groove on the driving plate, and the lock tongue can be pushed to move by pushing the push plate along the movable groove. When it is necessary to push the lock tongue to be plugged into the lock hole on the storage box, the push plate is pushed to drive the lock tongue to move along the slot to stretch the reset spring and plug it into the slot. At this time, the card block on the push plate is engaged with the card slot, which locks the push plate and the lock tongue; when it is necessary to unlock, the push block is moved out along the card slot, and then the push block is moved along the movable slot to compress the reset spring, drive the lock tongue to move the lock hole, and the card block on the push block is engaged with the card slot on the other side of the movable slot to complete the unlocking of the lock tongue and the lock hole.

[0019] Preferably, positioning blocks are installed on both sides of the locking tongue, and positioning grooves are provided inside the slot corresponding to the positioning blocks, and the positioning blocks are slidably connected in the positioning grooves.

[0020] Through the above technical features, the cooperation of the positioning block and the positioning groove guides the movement of the lock tongue, ensures the stability of the movement of the lock tongue, and ensures that the lock tongue will be inserted into the lock hole after movement.

[0021] Preferably, the shock absorbing mechanism includes a mounting plate, a fixed tube, a movable rod, and a shock absorbing spring. The mounting plate is arranged below the guide rod and connected to both sides of the shell. The fixed tube is hinged to the bottom of the mounting plate and the bottom of the shell, respectively. The shock absorbing spring is arranged in the fixed tube. One end of the movable rod is slidably connected in the fixed tube and connected to the shock absorbing spring. One end of the movable rod extends out of the fixed tube and is hinged to the top and bottom of the storage box, respectively.

[0022] Through the above-mentioned technical features, when external vibration acts on the storage box, the moving rod will drive the shock-absorbing spring in the fixed tube to deform, and convert the vibration energy into the potential energy of the spring, thereby reducing the vibration transmitted to the storage box and avoiding damage to the high-sensitivity speaker in the storage box; when the internal high-sensitivity speaker vibration acts on the storage box, the same moving rod will drive the shock-absorbing spring in the fixed tube to deform, and convert the vibration energy into the potential energy of the spring, thereby reducing the vibration transmitted to the shell and ensuring the stability of the installation and placement of the shell.

[0023] Preferably, a plurality of damping positioning blocks are evenly spaced in the circumferential direction at one end of the movable rod, and a damping limit groove is provided in the inner cavity of the fixed tube corresponding to the damping positioning block, and both the damping positioning block and the damping limit groove extend axially, and the damping positioning block is slidably connected in the damping limit groove.

[0024] Through the above-mentioned technical features, when the moving rod slides in the fixed tube, the damping positioning block will slide along the damping limit groove. Through the cooperation of the damping positioning block and the damping limit groove, the movement of the moving rod is restricted to prevent it from excessive movement or deviation from the predetermined path. The damping force generated by the damping positioning block during the sliding process can further absorb and disperse the vibration energy, thereby improving the shock absorption effect.

[0025] In summary, this application has the following beneficial effects: (1) The present application achieves protection for the speaker components by sealing the opening through a sealing mechanism. The sealing cloth can open or close the opening by moving the movable plate. The operation is simple and convenient, and can effectively prevent dust, moisture or other debris from entering the interior of the speaker, thereby protecting the speaker components from damage.

[0026] (2) The present application realizes the automatic opening and closing of the closed cloth by linking the moving component with the winding component, without manual operation, thus improving the convenience and automation of use; (3) The present application adopts a high-sensitivity speaker which is firmly locked in the storage box through a locking mechanism, thereby enhancing the stability of the speaker and preventing the speaker from being displaced or damaged when vibrating or moving. The shock-absorbing mechanism effectively reduces the impact of external vibration on the speaker, ensuring the stability of the speaker and the clarity of the sound quality, while reducing the impact of the speaker vibration on the stability of the shell installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of a high-sensitivity speaker and a fixing plate according to an embodiment of the present application; Figure 2 This is a schematic diagram of the structure of a storage box according to an embodiment of the present application; Figure 3 This is a schematic structural diagram of a fixing plate according to an embodiment of the present application; Figure 4 This is a schematic structural diagram of a locking mechanism according to an embodiment of the present application; Figure 5 This is a schematic structural diagram of a housing according to an embodiment of the present application; Figure 6 This is a schematic structural diagram of a shock absorbing mechanism according to an embodiment of the present application; Figure 7 This is a schematic structural diagram of a closing mechanism according to an embodiment of the present application; Figure 8 This is a schematic structural diagram of a guide rod according to an embodiment of the present application; Fig. 9 This is a schematic structural diagram of a winding assembly according to an embodiment of the present application; Fig.10 This is a schematic diagram of the structure of a mobile component according to an embodiment of the present application; Fig.11 This is a schematic diagram of the structure of a guide wheel according to an implementation scheme of the present application.

[0028] In the figure, 1, shell; 11, opening; 12, closing mechanism; 121, slide plate; 122, moving plate; 123, closing cloth; 124, guide rod; 13, winding assembly; 131, winding rod; 132, driving motor; 14, moving assembly; 141, winding disk; 142, limit block; 143, threaded rod; 144, threaded tube; 145, moving rope; 146, guide wheel; 2, speaker assembly; 21, high-sensitivity speaker; 22, storage box; 23, fixing plate; 231, slot; 232, moving slot; 2321, card slot; 233, push plate; 2331, card block; 24, locking mechanism; 241, lock tongue; 2411, positioning block; 242, reset spring; 243, driving plate; 2431, groove; 25, shock absorbing mechanism; 251, mounting plate; 252, fixing tube; 253, moving rod; 2531, damping positioning block; 254, shock absorbing spring. DETAILED DESCRIPTION

[0029] The following are specific embodiments of the present application and combined with the accompanying drawings to further describe the technical solution of the present application, but the present application is not limited to these embodiments.

[0030] like Figure 1 , Figure 2 As shown, the present application discloses a high-sensitivity sealed speaker, including a high-sensitivity speaker 21 placed in a storage box 22, one side of the high-sensitivity speaker 21 is connected to a fixing plate 23, and both sides of the fixing plate 23 are provided with a plurality of locking mechanisms 24 spaced evenly, and the locking mechanisms 24 are used to lock the fixing plate 23 in the storage box 22, thereby locking and fixing the high-sensitivity speaker 21 in the storage box 22.

[0031] like Figure 3 , Figure 4 As shown, the locking mechanism 24 in the present application includes a plurality of slots 231 arranged on both sides of the fixing plate 23, a return spring 242 is connected to the bottom of the slot 231, one end of the return spring 242 is connected to a lock tongue 241, one end of the lock tongue 241 extends out of the slot 231, and a plurality of lock holes are provided on both sides of the inner side of the storage box 22 corresponding to the slots 231, one end of the lock tongue 241 can be inserted into the lock hole, thereby locking the fixing plate 23 and the storage box 22 together.

[0032] When the push plate 233 drives the lock tongue 241 to move to lock or unlock the lock between the fixed plate 23 and the storage box 22, the card on the push plate 233 is engaged with the card slot 2321 on the moving slot 232, which plays a role in locking the position of the push plate 233 and preventing the push plate 233 from moving back and forth during the movement.

[0033] In order to ensure that the lock tongue 241 can accurately cooperate with the lock hole on the storage box 22 during the back and forth movement, the present application has positioning blocks 2411 installed on both sides of the lock tongue 241, and the interior of the slot 231 is provided with a positioning groove corresponding to the positioning block 2411. The positioning block 2411 is slidably connected in the positioning groove. The stability of the movement of the lock tongue 241 is ensured by the guiding effect of the positioning block 2411 and the positioning groove.

[0034] like Figure 5 As shown, combined Figure 2 The storage box 22 with the high-sensitivity speaker 21 installed is placed in the housing 1. The housing 1 is provided with an opening 11. The storage box 22 is placed in the housing 1 through the opening 11. The high-sensitivity speaker 21 is installed at a preset position through the housing 1. A shock absorbing mechanism 25 is provided between the storage box 22 and the housing 1. The shock absorbing mechanism 25 can effectively reduce the influence of external vibration on the speaker, ensure the stability of the speaker and the clarity of the sound quality, and reduce the influence of the speaker vibration on the installation stability of the housing 1.

[0035] like Figure 6 As shown, the shock absorbing mechanism 25 includes a mounting plate 251, which is connected to the top of the housing 1, with a gap between the mounting plate 251 and the top of the housing 1, and the storage box 22 is placed below the mounting plate 251, and a fixing tube 252 is hinged around the lower end of the mounting plate 251, and a shock absorbing spring 254 is connected to the bottom of the fixing tube 252, and one end of the shock absorbing spring 254 is connected to a moving rod 253, and one end of the moving rod 253 extends out of the fixing tube 252 and is hinged around the upper end surface of the storage box 22; The shock absorbing mechanism 25 also includes a fixed tube 252 hinged around the bottom of the shell 1. Similarly, a shock absorbing spring 254 is connected to the bottom of the fixed tube 252. One end of the shock absorbing spring 254 is connected to a moving rod 253. One end of the moving rod 253 extends out of the fixed tube 252 and is hinged around the lower end surface of the storage box 22.

[0036] Therefore, the upper and lower ends of the storage box 22 are hinged with moving rods 253. Regardless of whether it is the vibration transmitted from the outside through the shell 1 or the vibration generated by the internal high-sensitivity speaker 21, the mechanical vibration can be converted into elastic potential energy and stored in the shock-absorbing spring 254, thereby alleviating and absorbing the mechanical vibration and reducing the impact of the mechanical vibration.

[0037] In the present application, in order to prevent the moving rod 253 from excessively moving or deviating from the predetermined path during the moving process, a plurality of damping positioning blocks 2531 extending in the axial direction are evenly spaced in the circumferential direction of one end of the moving rod 253, and the inner cavity of the fixed tube 252 is provided with a damping limit groove corresponding to the damping positioning block 2531, and the damping positioning block 2531 is slidably connected in the damping limit groove. In addition, the damping force generated by the damping positioning block 2531 during the sliding process can further absorb and disperse the vibration energy, thereby improving the shock absorption effect.

[0038] like Figure 7 , Figure 8 As shown, in the present application, in order to prevent dust, moisture or other debris from entering the interior of the speaker and protect the speaker component 2 from damage, a closing mechanism 12 is provided in the shell 1, and the opening 11 of the shell 1 can be closed by the closing mechanism 12 to seal the shell 1 and protect the audio components inside the shell 1.

[0039] The closing mechanism 12 includes a slide plate 121 disposed on both sides of the opening 11 of the housing 1, a slide groove is disposed in the slide plate 121, a moving plate 122 is slidably connected between the slide plates 121 on both sides, and a closing cloth 123 is connected to the upper end of the moving plate 122. The top of the housing 1 is located above the mounting plate 251 and is rotatably connected to guide rods 124 on both sides. The closing cloth 123 bypasses the guide rods 124 and is connected to the winding assembly 13 of the bottom plate in the housing 1. The lower part of the moving plate 122 is connected to the moving assembly 14 at the bottom of the housing 1. The winding assembly 13 is used to wind up the closing cloth 123 to facilitate opening and closing the opening 11. The moving assembly 14 is used to move the moving plate 122 so that the moving plate 122 drives the closing cloth 123 to open and close the opening 11.

[0040] Thus, through the linkage between the moving component 14 and the winding component 13, the automatic opening and closing of the closing cloth 123 is realized without manual operation, thereby improving the convenience and automation of use.

[0041] like Fig. 9As shown, the winding assembly 13 includes a winding roller 131 which is rotatably connected to one side of the bottom of the housing 1 through a bearing seat, one end of the closing cloth 123 is wound on the winding roller 131, and a driving motor 132 is installed at the bottom of the housing 1, and the output shaft of the driving motor 132 is connected to the winding roller 131 through a bevel gear. When the opening 11 needs to be opened, the driving motor 132 is started to rotate the winding roller 131 counterclockwise, and the closing cloth 123 is pulled back from the opening 11 and wound on the winding roller 131, so as to open the opening 11; when the opening 11 needs to be closed, the driving motor 132 rotates in the opposite direction, and the winding roller 131 releases the closing cloth 123, and the moving plate 122 moves under the action of the moving assembly 14, so that the closing cloth 123 covers the opening 11, and the closing is completed.

[0042] like Fig.10 , Fig.11 As shown, the moving assembly 14 includes a winding disk 141 that is transmission-connected to both ends of the winding roller 131, a limit block 142 is connected to one side of the moving plate 122, a threaded rod 143 is hinged at the bottom of the limit block 142, a threaded tube 144 is threadedly connected to the outer side of the lower end of the threaded rod 143, and a moving rope 145 is connected to the bottom of the threaded tube 144. A guide wheel 146 is connected to one side of the sliding rod at the bottom of the housing 1, and the moving rope 145 is arranged on the winding disk 141 after passing through the guide wheel 146.

[0043] The driving motor 132 drives the winding roller 131 to rotate and wind up the closing cloth 123, while the winding disc 141 winds up the moving rope 145, and the winding directions of the moving rope 145 and the closing cloth 123 are opposite. When the driving motor 132 is started, the winding roller 131 rotates counterclockwise to wind up the closing cloth 123 to open the opening 11, the winding disc 141 releases the moving rope 145, and the threaded tube 144 moves upward on the threaded rod 143, thereby pushing the moving plate 122 to move and open the closing cloth 123; conversely, when the winding roller 131 releases the closing cloth 123 to close the opening 11, the winding disc 141 winds up the moving rope 145, and the threaded tube 144 moves downward on the threaded rod 143, and the moving plate 122 moves accordingly, so that the closing cloth 123 covers the opening 11.

[0044] Working principle: When in use, the high-sensitivity speaker 21 is placed in the storage box 22, and the fixing plate 23 and the storage box 22 are locked by the locking mechanism 24, so that the high-sensitivity speaker 21 is fixed in the storage box 22. Then, the storage box 22 with the high-sensitivity speaker 21 is placed in the housing 1, and the damping mechanism 25 on the top and bottom of the storage box 22 is hingedly connected with the mounting part at the top of the housing 1 and the bottom of the housing 1. Finally, the moving assembly 14 and the winding assembly 13 are used to complete the sealing of the closing mechanism 12 to the opening 11, which plays a protective role on the speaker assembly 2.

[0045] The specific embodiments described herein are merely examples of the present application. A person skilled in the art of the present application may make various modifications or additions to the specific embodiments described or replace them in a similar manner without departing from the scope defined in the present application.

Claims

1. A high-sensitivity sealed speaker, characterized in that: include: A shell (1), one side of the shell (1) is provided with an opening (11), the inner cavity of the shell (1) is provided with a speaker assembly (2), a closing mechanism (12) for closing the opening (11) so as to protect the speaker assembly (2) is provided inside the shell (1) and on the outer side of the speaker assembly (2), the closing mechanism (12) comprises a slide plate (121), a movable plate (122) and a closing cloth (123), the slide plates (121) are respectively installed on both sides of one end of the shell (1), the movable plate (122) is slidably connected between the slide plates (121), and the shell (1) is provided with a sealing mechanism (122) for closing the opening (11) so as to protect the speaker assembly (2). (1) Both front and rear ends of the inner top are rotatably connected to guide rollers (124) through bearing seats, the closing cloth (123) is rotatably connected to the guide rollers (124), and the closing cloth (123) is connected to the top of the movable plate (122), and a winding assembly (13) for winding the closing cloth (123) so as to open and close the opening (11) is provided inside the shell (1), and both sides of the movable plate (122) are provided with moving assemblies (14) for moving the movable plate (122) so as to drive the closing cloth (123) to open and close the opening (11).

2. The high-sensitivity sealed sound box according to claim 1, characterized in that: The winding assembly (13) comprises a winding roller (131) and a driving motor (132); the two ends of the winding roller (131) are rotatably connected to the bottom of the shell (1) via a bearing seat; the closed cloth (123) is wound on the winding roller (131); the driving motor (132) is installed at the bottom of the shell (1); and the output shaft of the driving motor (132) is transmission-connected to the winding roller (131) via a bevel gear.

3. The high-sensitivity sealed sound box according to claim 2, characterized in that: The moving assembly (14) comprises a winding disk (141), a limit block (142), a threaded rod (143), a threaded tube (144) and a moving rope (145); the winding disk (141) is transmission-connected to the two ends of the winding roller (131); the limit block (142) is connected to one side of the moving plate (122); the threaded rod (143) is hinged at the bottom end of the limit block (142); the threaded tube (144) is threadedly connected to the outside of the threaded rod (143); the moving rope (145) is connected to the bottom end of the threaded tube (144); the moving rope (145) is wound around the inner side of the winding disk (141); and the winding directions of the moving rope (145) and the closing cloth (123) are opposite.

4. The high-sensitivity sealed sound box according to claim 3, characterized in that: The moving component (14) further comprises a guide wheel (146), wherein the guide wheel (146) is arranged on one side of the slide plate (121), and the guide wheel (146) is connected to the bottom of the shell (1), and the moving rope (145) is rotationally connected to the guide wheel (146), and the guide wheel (146) is used to guide the winding of the moving rope (145).

5. The high-sensitivity sealed sound box according to any one of claims 1 to 4, characterized in that: The speaker assembly (2) comprises a high-sensitivity speaker (21), a storage box (22) and a fixing plate (23); the storage box (22) is arranged in the shell (1); the high-sensitivity speaker (21) is arranged in the storage box (22); the fixing plate (23) is connected to one side of the storage box (22); a locking mechanism (24) is provided on the fixing plate (23); the locking mechanism (24) is used to lock the fixing plate (23) in the storage box (22); a shock absorbing mechanism (25) is provided between the top and bottom of the storage box (22) and the shell (1); the shock absorbing mechanism (25) is used to absorb the shock of the storage box (22) so as to improve the fixity of the installation of the shell (1).

6. A high-sensitivity sealed sound box according to claim 5, characterized in that: The locking mechanism (24) comprises a locking tongue (241) and a return spring (242); a plurality of slots (231) are arranged at intervals on both sides of the fixing plate (23); the return spring (242) is connected to the concave bottom of the slot (231); one end of the locking tongue (241) is slidably inserted in the slot (231) and connected to the return spring (242); one end of the locking tongue (241) extends outside the slot (231); a plurality of locking holes are provided on both inner sides of the storage box (22) corresponding to the slot (231); one end of the locking tongue (241) extends into the interior of the locking hole.

7. A high-sensitivity sealed sound box according to claim 6, characterized in that: A driving plate (243) is connected to one side of the locking tongue (241), a groove (2431) is provided at one end of the driving plate (243), a movable groove (232) is provided on the fixed plate (23), a push plate (233) is slidably connected in the movable groove (232), a clamping block (2331) is provided on the push plate (233), the clamping block (2331) is clamped with the groove (2431), and clamping grooves (2321) are respectively provided on both sides of the movable groove (232) along the length direction corresponding to the clamping block (2331), and the clamping grooves (2321) are communicated with the movable groove (232).

8. A high-sensitivity sealed sound box according to claim 6, characterized in that: Positioning blocks (2411) are installed on both sides of the locking tongue (241), and a positioning groove is provided inside the slot (231) corresponding to the positioning block (2411), and the positioning block (2411) is slidably connected in the positioning groove.

9. A high-sensitivity sealed sound box according to claim 5, characterized in that: The shock absorbing mechanism (25) comprises a mounting plate (251), a fixing tube (252), a moving rod (253), and a shock absorbing spring (254); the mounting plate (251) is arranged below the guide rod (124) and connected to both sides of the shell (1); the fixing tube (252) is hinged at the bottom of the mounting plate (251) and the bottom of the shell (1), respectively; the shock absorbing spring (254) is arranged in the fixing tube (252); one end of the moving rod (253) is slidably connected in the fixing tube (252) and connected to the shock absorbing spring (254); one end of the moving rod (253) extends out of the fixing tube (252) and is hinged to the top and bottom of the storage box (22), respectively.

10. A high-sensitivity sealed sound box according to claim 9, characterized in that: A plurality of damping positioning blocks (2531) are evenly spaced in the circumferential direction at one end of the moving rod (253); the inner cavity of the fixed tube (252) is provided with a damping limit groove corresponding to the damping positioning block (2531); the damping positioning block (2531) and the damping limit groove both extend in the axial direction; and the damping positioning block (2531) is slidably connected in the damping limit groove.

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