Sound box

Abstract

The invention belongs to the technical field of music players, particularly relates to a sound box, and aims to solve the problem that the effect of anti-impact protection measures of an existing sound box is poor, the sound box comprises a PVC shell, two symmetrical silica gel sealing covers are arranged outside the PVC shell, and quick mounting modules are arranged on the two silica gel sealing covers. A mounting plate is arranged in the PVC shell, an electronic element is fixedly connected to the mounting plate, four symmetrical playing loudspeakers are arranged on the electronic element, two symmetrical loudspeaker preformed grooves are formed in the PVC shell, a plurality of symmetrical impact protection modules are arranged outside the mounting plate, and the impact protection modules are all located in the PVC shell. The sound box disclosed by the invention can timely and effectively absorb and buffer the impact force received by the sound box, so that the influence of the impact force on the sound box and important parts in the sound box is reduced or eliminated, the structural integrity of the sound box is improved, and the service life of the sound box is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of music players, and in particular to a sound box. Background Art

[0002] A speaker is a device that can convert audio signals into sound. In layman's terms, it refers to a speaker mainframe or subwoofer box with a built-in power amplifier that amplifies the audio signal and plays it back by the speaker itself, making it louder. The speaker is the terminal of the entire speaker system, and its function is to convert audio electrical energy into corresponding sound energy and radiate it into space.

[0003] Existing speakers lack the necessary impact protection measures. When the outer shell is damaged by impact, important electronic components and speakers in the speaker device are exposed to the outside and are easily damaged in the subsequent impact, causing damage to the speaker or even failure. Summary of the invention

[0004] The invention discloses a speaker, aiming to solve the technical problem that the anti-impact protection measures of the existing speakers in the background technology have poor effects.

[0005] A sound box proposed by the present invention comprises a PVC shell, two symmetrical silicone sealing covers are arranged on the outside of the PVC shell, quick installation modules are arranged on the two silicone sealing covers, a mounting plate is arranged inside the PVC shell, an electronic component is fixedly connected to the mounting plate, four symmetrical playback speakers are arranged on the electronic component, two symmetrical speaker reserved grooves are provided on the PVC shell, a plurality of symmetrical impact protection modules are arranged on the outside of the mounting plate, the impact protection modules are all located in the PVC shell, a display screen reserved groove is provided on the PVC shell, a woven dust cover is arranged on the outside of the PVC shell, and a screen is arranged on the electronic component;

[0006] The impact protection module comprises a support plate, and a plurality of deformation grooves equidistantly distributed around the circumference are provided on both support plates, and an annular airbag is provided on one side of the support plate close to the silicone sealing cover;

[0007] The quick installation module includes a spring three and a fitting part.

[0008] By providing a PVC shell, a silicone sealing cover, a woven dust cover, an impact protection module, a quick installation module and a mounting plate, the device utilizes the impact protection module to timely and effectively absorb and buffer the impact force received by the speaker, thereby reducing or eliminating the impact of the impact force on the speaker and important components inside the speaker, and improving the structural integrity and service life of the speaker.

[0009] In a preferred embodiment, the two support plates are each provided with a rectangular opening, the inner walls of the rectangular opening are fixedly connected to the outside of the mounting plate, the side of the support plate close to the silicone sealing cover is fixedly connected to four circumferentially equidistantly distributed restraining members, the outsides of the restraining members are in contact with the outsides of the annular airbags on the same side, the upper side and the bottom of the mounting plate are fixedly connected to two symmetrical connecting plates, the side of the connecting plate away from the mounting plate is fixedly connected to an elastic frame, the side of the elastic frame away from the connecting plate is fixedly connected to a bonding plate, and the outsides of the bonding plates are in contact with the inner wall of the PVC shell; the side of the multiple connecting plates away from the mounting plate is movably connected to a powerful arm, and the two connecting plates on the same side are fixedly connected to the powerful arm. The ends of the force arms 1 away from the connecting plate are movably connected to the same moving block, and two symmetrical sliding grooves are provided on the side of the connecting plate close to the bonding plate, and sliding blocks are slidably connected in the sliding grooves, and the outsides of the sliding blocks are movably connected to force arm 2, and the two force arms 1 and force arm 2 located on the same side are movably connected to the same round rod, and the ends of the force arm 2 away from the sliding block are movably connected to the side of the bonding plate on the same side close to the connecting plate; the four bonding plates are provided with movable grooves on the side close to the connecting plate, and the outsides of the moving blocks are slidably connected to the inner walls of the movable grooves on the same side, and the outsides of the moving blocks are fixedly connected to two symmetrical springs 1, and the ends of the springs 1 away from the moving block are connected to the The inner wall of the movable groove is fixedly connected, and circular holes are provided on the movable blocks, and accommodating frames are slidably connected in the circular holes, and the side of the accommodating frames away from the movable blocks is fixedly connected to the inner wall of the movable groove on the same side; the four accommodating frames are slidably connected with contact plates, and the contact plates are fitted with the side opposite to the movable blocks on the same side, and the side of the contact plates away from the movable blocks is fixedly connected with corrugated airbags, and the side of the corrugated airbags away from the movable blocks is fixedly connected to the inner wall of the movable groove on the same side, and the side of the corrugated airbags away from the movable blocks is provided with fine holes, and air guide tubes are fixedly connected in the fine holes; the outsides of the four air guide tubes are fixedly connected with bosses, and the outsides of the air guide tubes are slidably connected with throat shrinkage tubes The throat shrinkage tube is fixedly connected to the side opposite to the boss, and an adjusting ring is arranged on the outside of the throat shrinkage tube, and the inner wall of the adjusting ring is rotatably connected to the outside of the throat shrinkage tube on the same side through an external thread, and two symmetrical guide frames are fixedly connected to the bonding plate, and a rack 2 is slidably connected in the guide frame, and a gear is meshed on the outside of the rack 2, and the gear is movably connected to the side opposite to the bonding plate, and two symmetrical racks 1 are fixedly connected to the outside of the moving block, and the rack 1 is parallel and staggered with the rack 2 on the same side; a display viewing window is arranged on the braided dust cover, and a plurality of symmetrical honeycomb holes are opened on the braided dust cover, and a key reserved slot is opened on the PVC shell.

[0010] By providing an impact protection module, the impact protection module uses a support plate, annular airbags and springs to provide the speaker with three consecutive layers of protection and cushioning when it is impacted, thereby protecting the integrity of the PVC shell, avoiding exposure of the internal components of the speaker, and greatly improving the protection level of important components in the speaker, thereby improving the protection effect of the speaker.

[0011] In a preferred embodiment, one end of the two springs three located on the same side are fixedly connected to the outside of the silicone sealing cover on the same side, and the other end is fixedly connected to the outside of the fitting part on the same side, the two fitting parts are fitted with the side opposite to the support plate on the same side, and the outside of the PVC shell is fixedly connected with two symmetrical fixing rings, and the inner walls of the fixing rings are provided with annular grooves; insertion rings are slidably connected in the two annular grooves, and the insertion rings are fixedly connected to the side opposite to the silicone sealing cover on the same side, and the outsides of the two fixing rings are provided with two L-shaped grooves equidistantly distributed around the circumference, and convex rafters are clamped in the L-shaped grooves, and the convex rafters are fixedly connected to the side opposite to the insertion ring on the same side; annular movable parts are slidably connected in the two annular grooves, and the annular movable parts are fitted with the side opposite to the insertion ring on the same side, and the side of the annular movable part away from the silicone sealing cover is fixedly connected with multiple springs two equidistantly distributed around the circumference, and the end of the spring two away from the silicone sealing cover is fixedly connected to the inner wall of the annular groove on the same side.

[0012] By providing a quick installation module, the quick installation module can use the insertion ring, the protruding rafter and the L-shaped groove to quickly and conveniently fix the silicone sealing cover on the PVC shell, thereby making it more convenient for personnel to repair and replace the speaker, greatly saving the time for personnel to disassemble the speaker and improving the efficiency of repair and assembly.

[0013] From the above, it can be seen that the speaker provided by the present invention can absorb and buffer the impact force received by the speaker in a timely and effective manner, thereby reducing or eliminating the impact of the impact force on the speaker and important components inside the speaker, thereby improving the structural integrity and service life of the speaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the overall structure of a speaker proposed by the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of a braided dust cover for a speaker proposed by the present invention;

[0016] Figure 3 A schematic cross-sectional view of a speaker proposed by the present invention;

[0017] Figure 4 This is a schematic structural diagram of an impact protection module of a speaker proposed by the present invention;

[0018] Figure 5This is a schematic diagram of the structure of a bonding plate of a sound box proposed by the present invention;

[0019] Figure 6 A schematic diagram of the structure of an active slot of a sound box proposed by the present invention;

[0020] Figure 7 This is a schematic diagram of the structure of a quick installation module of a speaker proposed by the present invention.

[0021] In the figure: 1, PVC shell; 2, silicone sealing cover; 3, woven dust cover; 4, reserved slot for display screen; 5, reserved slot for speaker; 6, reserved slot for button; 7, impact protection module; 701, support plate; 702, deformation slot; 703, constraint; 704, annular airbag; 705, laminating plate; 706, connecting plate; 707, elastic frame; 708, force arm 1; 709, force arm 2; 710, slider; 711, slide slot; 712, moving block; 713, movable slot; 714, containing frame; 715, contact plate; 716, corrugated airbag; 717, air duct; 718, spring one; 719, rack one; 720, gear; 721, rack two; 722, guide frame; 723, throat shrink tube; 724, adjustment ring; 8, quick installation module; 801, insertion ring; 802, convex rafter; 803, fixing ring; 804, annular groove; 805, spring two; 806, annular movable part; 807, spring three; 808, fitting part; 809, L-shaped groove; 9, display screen observation window; 10, honeycomb hole; 11, mounting plate; 12, electronic component; 13, screen; 14, playback speaker. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] The speaker disclosed in the present invention is mainly used in the scenario where the anti-impact protection measures of the existing speakers are less effective.

[0024] Reference Figure 1-Figure 7A speaker comprises a PVC shell 1, two symmetrical silicone sealing covers 2 are arranged on the outside of the PVC shell 1, and quick installation modules 8 are arranged on the two silicone sealing covers 2, and a mounting plate 11 is arranged inside the PVC shell 1, an electronic component 12 is connected to the mounting plate 11 by bolts, and four symmetrical playback speakers 14 are arranged on the electronic component 12, two symmetrical speaker reserved grooves 5 are opened on the PVC shell 1, a plurality of symmetrical impact protection modules 7 are arranged on the outside of the mounting plate 11, and the impact protection modules 7 are all located in the PVC shell 1, and a display screen reserved groove 4 is opened on the PVC shell 1, a woven dust cover 3 is arranged on the outside of the PVC shell 1, and a screen 13 is arranged on the electronic component 12;

[0025] The impact protection module 7 includes a support plate 701, and a plurality of deformation grooves 702 equidistantly distributed around the circumference are provided on the two support plates 701, and a ring-shaped air bag 704 is provided on one side of the support plate 701 close to the silicone sealing cover 2;

[0026] The quick installation module 8 includes a spring three 807 and a fitting part 808 .

[0027] Specifically, when the speaker falls or bumps during use, the impact protection module 7 absorbs and buffers the impact force from the outside transmitted by the PVC shell 1. When the PVC shell 1 is damaged or needs to be replaced, the quick installation module 8 is used to remove the silicone sealing covers 2 on both sides of the PVC shell 1, and the mounting plate 11 connected to the support plate 701 is pulled out from the PVC shell 1. After inserting it into the new PVC shell 1, the positions of the playback speaker 14 and the screen 13 in the speaker reserved groove 5 and the display reserved groove 4 are adjusted, and then the quick installation module 8 is used to re-fix the silicone sealing cover 2 on the PVC shell 1, and then the braided dust cover 3 is re-put on the PVC shell 1; the device uses the impact protection module 7 to timely and effectively absorb and buffer the impact force received by the speaker, thereby reducing or eliminating the impact of the impact force on the speaker and important components inside the speaker, and improving the structural integrity and service life of the speaker.

[0028] Reference Figure 3 , Figure 4 , Figure 5 and Figure 6In a preferred embodiment, a rectangular opening is provided on each of the two support plates 701, and the inner walls of the rectangular openings are connected to the outside of the mounting plate 11 by bolts. The side of the support plate 701 close to the silicone sealing cover 2 is connected to four circumferentially equidistantly distributed restraining members 703 by bolts, and the outside of the restraining members 703 is in contact with the outside of the annular airbag 704 on the same side. The upper side and the bottom of the mounting plate 11 are connected to two symmetrical connecting plates 706 by bolts, and the side of the connecting plate 706 away from the mounting plate 11 is connected to an elastic frame 707 by bolts, and the side of the elastic frame 707 away from the connecting plate 706 is connected to The bonding plate 705, and the outside of the bonding plate 705 is in contact with the inner wall of the PVC shell 1; the side of the multiple connecting plates 706 away from the mounting plate 11 is rotatably connected to the force arm 1 708 through a bearing, and the ends of the two force arms 1 708 on the same side away from the connecting plate 706 are rotatably connected to the same moving block 712 through a bearing, and the side of the connecting plate 706 close to the bonding plate 705 is provided with two symmetrical sliding grooves 711, and the sliding grooves 711 are slidably connected with sliders 710, and the outside of the sliders 710 are rotatably connected to the force arm 2 709 through bearings, and the two force arms 1 708 and the force arm 2 709 on the same side are connected The same round rod is rotatably connected through a bearing, and the end of the force arm 2 709 away from the slider 710 is rotatably connected to the side of the fitting plate 705 on the same side close to the connecting plate 706 through a bearing; a movable groove 713 is provided on the side of the four fitting plates 705 close to the connecting plate 706, and the outside of the moving block 712 is slidably connected to the inner wall of the movable groove 713 on the same side, and the outside of the moving block 712 is connected to two symmetrical springs 1 718 through bolts, and the end of the spring 1 718 away from the moving block 712 is connected to the inner wall of the movable groove 713 on the same side through bolts, and the moving block 712 is provided with a circular hole, and the circular hole is slidably connected A containing frame 714 is connected, and the side of the containing frame 714 away from the moving block 712 is connected to the inner wall of the movable groove 713 on the same side by bolts; the four containing frames 714 are slidably connected with a contact plate 715, the contact plate 715 is fitted with the side opposite to the moving block 712 on the same side, and the side of the contact plate 715 away from the moving block 712 is connected to a corrugated airbag 716 by bolts, and the side of the corrugated airbag 716 away from the moving block 712 is connected to the inner wall of the movable groove 713 on the same side by bolts, and the side of the corrugated airbag 716 away from the moving block 712 is opened with a fine hole, and the fine hole is connected with an air guide tube 717 by bolts;The outsides of the four air guide tubes 717 are all connected to bosses by bolts, and the outsides of the air guide tubes 717 are all slidably connected to throat shrinkage tubes 723, and the throat shrinkage tubes 723 are connected to the bosses on one side by bolts, and the outsides of the throat shrinkage tubes 723 are provided with adjustment rings 724, and the inner walls of the adjustment rings 724 are rotatably connected to the outsides of the throat shrinkage tubes 723 on the same side by external threads, and the fitting plate 705 is connected to two symmetrical guide frames 722 by bolts, and the guide frames 722 are slidably connected to racks. The outer part of the rack 721 is meshed with a gear 720, and the gear 720 is rotatably connected to the side opposite to the bonding plate 705 through a bearing, and the outer part of the moving block 712 is connected to two symmetrical racks 719 through bolts, and the racks 719 and the racks 721 on the same side are arranged in parallel and staggered; the braided dust cover 3 is provided with a display viewing window 9, and the braided dust cover 3 is provided with a plurality of symmetrical honeycomb holes 10, and the PVC shell 1 is provided with a key reserved slot 6. ;

[0029] Specifically, when the PVC shell 1 is impacted, the impact force will compress the PVC shell 1 to deform locally. After the deformation is transmitted to the bonding plate 705, the elastic frame 707 will be deformed, so that the bonding plate 705 moves toward the connecting plate 706, causing the angle between the force arm 1 708 and the force arm 2 709 to increase, so that the slider 710 and the moving block 712 slide in the slide groove 711 and the movable groove 713, and the sliding moving block 712 overcomes the elastic force of the spring 1 718 to compress the corrugated airbag 716, so that the corrugated airbag 716 delivers air to the annular airbag 704 through the air guide tube 717, so that the annular airbag 704 expands, and the deformation of the PVC shell 1 is buffered. When the speaker rolls over due to the impact of falling, When the impact is absorbed by the annular airbag 704, the pre-set adjustment ring 724 causes the throat contraction tube 723 to contract the air guide tube 717, so that the air in the annular airbag 704 slows down its speed of returning to the corrugated airbag 716, and the annular airbag 704 continues to absorb the impact. When the annular airbag 704 cannot completely absorb the impact, the moving moving block 712 drives the corrugated airbag 716 to engage and rotate with the gear 720, so that the rack 721 engaged with the gear 720 blocks the moving block 712 after moving a certain distance, so that the distance between the connecting plate 706 and the bonding plate 705 no longer changes, the annular airbag 704 is no longer inflated, and the support plate 701 breaks through the deformation groove 702 that has been opened, thereby absorbing the impact.

[0030] In specific application scenarios, the impact protection module 7 is mainly suitable for the impact protection link in the impact protection process, that is, the impact protection module 7 uses the support plate 701, the annular airbag 704 and the spring 718 to enable the speaker to obtain three consecutive layers of protection and buffering when it is impacted, thereby protecting the integrity of the PVC shell 1 and avoiding exposure of the internal components of the speaker, greatly improving the protection level of important components in the speaker, thereby improving the protection effect of the speaker.

[0031] Reference Figure 7 In a preferred embodiment, one end of the two springs 807 on the same side is connected to the outside of the silicone sealing cover 2 on the same side by bolts, and the other end is connected to the outside of the fitting 808 on the same side by bolts. The two fittings 808 are fitted with the side opposite to the support plate 701 on the same side, and the outside of the PVC shell 1 is connected to two symmetrical fixing rings 803 by bolts, and the inner wall of the fixing ring 803 is provided with an annular groove 804; the two annular grooves 804 are slidably connected with an insertion ring 801, and the insertion ring 801 is connected to the side opposite to the silicone sealing cover 2 on the same side by bolts, and the two fixing rings The outside of 803 is provided with two L-shaped grooves 809 which are evenly distributed around the circumference, and the L-shaped grooves 809 are each clamped with a convex rafter 802, and the convex rafter 802 is connected to the side opposite to the insertion ring 801 on the same side by bolts; annular movable parts 806 are slidably connected to the two annular grooves 804, and the annular movable parts 806 are fitted with the side opposite to the insertion ring 801 on the same side, and the side of the annular movable part 806 away from the silicone sealing cover 2 is connected to a plurality of springs 805 which are evenly distributed around the circumference by bolts, and the end of the springs 805 away from the silicone sealing cover 2 is connected to the inner wall of the annular groove 804 on the same side by bolts.

[0032] Specifically, when the PVC shell 1 needs to be removed, the woven dust cover 3 is pulled out from the PVC shell 1, the silicone sealing cover 2 is lightly pressed and rotated to release the lock of the L-shaped groove 809 on the convex rafter 802, and the insertion ring 801 is pulled out of the annular groove 804 under the push of spring three 807 and spring two 805, and then the silicone sealing cover 2 is taken out of the PVC shell 1. After the equipment in the speaker is placed in the new PVC shell 1, the insertion ring 801 on the silicone sealing cover 2 is reinserted into the annular groove 804, so that the spring three 807 and the fitting 808 are fitted on the support plate 701, and the silicone sealing cover 2 is lightly pressed and rotated to re-lock the convex rafter 802 in the L-shaped groove 809.

[0033] In specific application scenarios, the quick installation module 8 is mainly suitable for the quick installation link in the quick installation process, that is, the quick installation module 8 uses the insertion ring 801, the convex rafter 802 and the L-shaped groove 809 to make the silicone sealing cover 2 quickly and conveniently fixed on the PVC shell 1, thereby making it more convenient for personnel to repair and replace the speaker, greatly saving the time for personnel to disassemble the speaker and improving the efficiency of repair and assembly.

[0034] Working principle: When the PVC shell 1 is impacted, the impact force will compress the PVC shell 1 to deform locally. After the deformation is transmitted to the bonding plate 705, the elastic frame 707 will deform, so that the bonding plate 705 moves toward the connecting plate 706, causing the angle between the force arm 1 708 and the force arm 2 709 to increase, so that the slider 710 and the moving block 712 slide in the sliding groove 711 and the movable groove 713, and the sliding moving block 712 overcomes the elastic force of the spring 1 718 to compress the corrugated airbag 716, so that the corrugated airbag 716 releases air. The air is delivered to the annular airbag 704 through the air guide tube 717, so that the annular airbag 704 expands and cushions the deformation of the PVC shell 1. When the speaker rolls over due to the impact of falling, the pre-set adjustment ring 724 causes the throat contraction tube 723 to contract the air guide tube 717, so that the air in the annular airbag 704 slows down the speed of returning to the corrugated airbag 716, so that the annular airbag 704 continues to absorb the impact. When the annular airbag 704 cannot completely absorb the impact, the moving block 712 drives the corrugated airbag 716 to move. The gear 720 meshes with the gear 720 and rotates, so that the rack 721 meshing with the gear 720 blocks the moving block 712 after moving a certain distance, so that the distance between the connecting plate 706 and the bonding plate 705 no longer changes, the annular airbag 704 is no longer inflated, and the support plate 701 breaks through the deformation groove 702 provided, thereby absorbing the impact. When the PVC shell 1 needs to be removed, the braided dust cover 3 is pulled out from the PVC shell 1, and the silicone sealing cover 2 is lightly pressed and rotated to release the L-shaped groove 809 from the convex To lock the rafter 802, under the push of spring three 807 and spring two 805, the insertion ring 801 is pulled out from the annular groove 804, and then the silicone sealing cover 2 is taken out from the PVC shell 1. After the equipment in the speaker is placed in the new PVC shell 1, the insertion ring 801 on the silicone sealing cover 2 is reinserted into the annular groove 804, so that the spring three 807 and the fitting 808 are fitted on the support plate 701, and the silicone sealing cover 2 is lightly pressed and rotated to re-lock the convex rafter 802 in the L-shaped groove 809.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sound box, comprising a PVC housing (1), characterized in that: The outside of the PVC shell (1) is provided with two symmetrical silicone sealing covers (2), and the two silicone sealing covers (2) are both provided with a quick installation module (8), and the inside of the PVC shell (1) is provided with a mounting plate (11), and the mounting plate (11) is fixedly connected with an electronic component (12), and the electronic component (12) is provided with four symmetrical playback speakers (14), and the PVC shell (1) is provided with two symmetrical speaker reserved grooves (5), and the outside of the mounting plate (11) is provided with a plurality of symmetrical impact protection modules (7), and the impact protection modules (7) are all located in the PVC shell (1), and the PVC shell (1) is provided with a display screen reserved groove (4), and the outside of the PVC shell (1) is provided with a woven dust cover (3), and the electronic component (12) is provided with a screen (13); The impact protection module (7) comprises a support plate (701), and the two support plates (701) are each provided with a plurality of deformation grooves (702) equidistantly distributed around the circumference, and a ring-shaped air bag (704) is provided on one side of the support plate (701) close to the silicone sealing cover (2); The quick installation module (8) comprises a spring three (807) and a fitting part (808).

2. A sound box according to claim 1, characterized in that: The two support plates (701) are each provided with a rectangular opening, the inner walls of the rectangular openings are each fixedly connected to the outside of the mounting plate (11), the side of the support plate (701) close to the silicone sealing cover (2) is each fixedly connected to four circumferentially equidistantly distributed restraining members (703), the outside of the restraining members (703) is each in contact with the outside of the annular airbag (704) on the same side, the upper side and the bottom of the mounting plate (11) are each fixedly connected to two symmetrical connecting plates (706), the side of the connecting plate (706) away from the mounting plate (11) is each fixedly connected to an elastic frame (707), the side of the elastic frame (707) away from the connecting plate (706) is each fixedly connected to a bonding plate (705), and the outside of the bonding plate (705) is each in contact with the inner wall of the PVC shell (1).

3. A sound box according to claim 2, characterized in that: The side of the plurality of connecting plates (706) away from the mounting plate (11) is movably connected to a force arm 1 (708); the ends of the two force arms 1 (708) located on the same side away from the connecting plate (706) are movably connected to the same moving block (712); the side of the connecting plate (706) close to the bonding plate (705) is provided with two symmetrical sliding grooves (711); the sliding grooves (711) are slidably connected to a slider (710); the outside of the slider (710) is movably connected to a force arm 2 (709); the two force arms 1 (708) and force arm 2 (709) located on the same side are movably connected to the same round rod; and the ends of the force arms 2 (709) away from the slider (710) are movably connected to the side of the bonding plate (705) on the same side close to the connecting plate (706).

4. A sound box according to claim 3, characterized in that: A movable groove (713) is provided on one side of the four bonding plates (705) close to the connecting plate (706); the outside of the moving block (712) is slidably connected to the inner wall of the movable groove (713) on the same side; the outside of the moving block (712) is fixedly connected to two symmetrical springs (718); the end of the spring (718) away from the moving block (712) is fixedly connected to the inner wall of the movable groove (713) on the same side; and a circular hole is provided on the moving block (712); a receiving frame (714) is slidably connected in the circular hole; and the side of the receiving frame (714) away from the moving block (712) is fixedly connected to the inner wall of the movable groove (713) on the same side.

5. A sound box according to claim 4, characterized in that: The four containing frames (714) are all slidably connected with a contact plate (715), the contact plate (715) is in contact with a side opposite to the moving block (712) on the same side, the side of the contact plate (715) away from the moving block (712) is fixedly connected with a corrugated airbag (716), the side of the corrugated airbag (716) away from the moving block (712) is fixedly connected to the inner wall of the movable groove (713) on the same side, and a fine hole is opened on the side of the corrugated airbag (716) away from the moving block (712), and an air guide tube (717) is fixedly connected in the fine hole.

6. A sound box according to claim 5, characterized in that: The outsides of the four air guide tubes (717) are all fixedly connected to bosses, and the outsides of the air guide tubes (717) are all slidably connected to throat shrinkage tubes (723), and the throat shrinkage tubes (723) are all fixedly connected to the sides opposite to the bosses, and the outsides of the throat shrinkage tubes (723) are all provided with adjustment rings (724), and the inner walls of the adjustment rings (724) are all rotatably connected to the outsides of the throat shrinkage tubes (723) on the same side through external threads, and the fitting plates (705) are all fixedly connected to the outsides of the throat shrinkage tubes (723) on the same side. Two symmetrical guide frames (722) are connected, and racks (721) are slidably connected inside the guide frames (722). The outside of the racks (721) is meshed with gears (720). The gears (720) are movably connected to the side opposite to the bonding plate (705), and the outside of the moving block (712) is fixedly connected with two symmetrical racks (719). The racks (719) and the racks (721) on the same side are arranged in parallel and staggered.

7. The sound box according to claim 1, characterized in that: The braided dust cover (3) is provided with a display screen observation window (9), and a plurality of symmetrical honeycomb holes (10) are provided on the braided dust cover (3), and a key reserved slot (6) is provided on the PVC shell (1).

8. The sound box according to claim 1, characterized in that: One end of the two springs (807) located on the same side is fixedly connected to the outside of the silicone sealing cover (2) on the same side, and the other end is fixedly connected to the outside of the fitting (808) on the same side. The two fittings (808) are fitted to the opposite side of the support plate (701) on the same side, and the outside of the PVC shell (1) is fixedly connected with two symmetrical fixing rings (803), and the inner wall of the fixing ring (803) is provided with an annular groove (804).

9. A sound box according to claim 8, characterized in that: Insertion rings (801) are slidably connected in the two annular grooves (804), and the insertion rings (801) are fixedly connected to the side opposite to the silicone sealing cover (2) on the same side. The outsides of the two fixing rings (803) are provided with two L-shaped grooves (809) equidistantly distributed around the circumference, and convex rafters (802) are clamped in the L-shaped grooves (809), and the convex rafters (802) are fixedly connected to the side opposite to the insertion rings (801) on the same side.

10. A sound box according to claim 9, characterized in that: An annular movable part (806) is slidably connected in the two annular grooves (804), and the annular movable part (806) is fitted with the side opposite to the insertion ring (801) on the same side, and a plurality of springs (805) distributed equidistantly around the circumference are fixedly connected to the side of the annular movable part (806) away from the silicone sealing cover (2), and the end of the spring (805) away from the silicone sealing cover (2) is fixedly connected to the inner wall of the annular groove (804) on the same side.

Images