Embedded lightweight ceiling speaker box

Abstract

The present invention belongs to the technical field of loudspeakers, and specifically is an embedded lightweight ceiling loudspeaker box, including a mesh cover, an explosion-proof shell is clamped at the center of the top of the mesh cover, a mounting seat is installed on the outer edge of the top of the mesh cover, the top of the explosion-proof shell passes through the center of the ceiling, a mainboard is fixedly connected to the center of the top of the explosion-proof shell, a jack is provided on the top of the mainboard, a plurality of sleeves are fixedly connected above the outer edge of the mesh cover, a sound-absorbing ring is fixedly connected to the inside of the explosion-proof shell, and a speaker is connected inside the sound-absorbing ring. The embedded lightweight ceiling loudspeaker box described in the present invention can be made by dragging the sound-absorbing cotton downwards through a ring bar to move synchronously, and the sound-absorbing cotton is gradually embedded downwards into the inside of the sound-absorbing ring. The sound-absorbing cotton can be clamped in the sound-absorbing ring to perform double-layer sound quality absorption processing for mixing, etc., so that the sound-absorbing cotton is orderly clamped in the inside of the sound-absorbing ring, forming the effect of automatically straightening the sound-absorbing cotton, and preventing the sound-absorbing cotton from being scattered and disordered during disassembly.

Description

Technical Field

[0001] The invention belongs to the technical field of loudspeakers, in particular to an embedded lightweight ceiling loudspeaker box. Background Art

[0002] ‌A ceiling speaker box is an audio device installed on the ceiling, usually composed of products such as an amplifier and speakers. This type of speaker is commonly found in public places such as shopping malls, hotels, stations, restaurants, and offices. The installation methods of ceiling speaker boxes mainly include embedded installation and surface installation. Its shape is usually round, and embedded installation is usually more common.

[0003] In the existing ceiling speaker box, although the position of the speaker can be hidden and does not occupy the ground space, so that a large range of surround effect can be achieved in the center of the ceiling, the sound-absorbing cotton stuffed in the speaker is easy to be detached and difficult to reset during maintenance and disassembly, which causes clutter and even reduces the sound quality processing effect. Therefore, the present invention provides an embedded lightweight ceiling speaker box to solve the above problem. Summary of the invention

[0004] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0005] The technical solution adopted by the present invention to solve its technical problems is: the embedded lightweight ceiling speaker box described in the present invention includes a mesh cover, an explosion-proof shell is clamped at the center of the top of the mesh cover, two mounting seats are installed on the outer edge of the top of the mesh cover, the top of the explosion-proof shell passes through the center of the ceiling, a main board is fixedly connected to the center of the top of the explosion-proof shell, a jack is opened on the top of the main board, the mesh cover is connected to a plurality of sleeves through the ceiling, a sound-absorbing ring is fixedly connected to the inside of the explosion-proof shell, a speaker is connected inside the sound-absorbing ring, sound-absorbing cotton is installed inside the sound-absorbing ring and outside the speaker, a tidying component is installed on the top of the mounting seat, and the tidying component pushes and pulls the sound-absorbing cotton out of the sound-absorbing ring through lifting and rotating.

[0006] Furthermore, the organizing component includes a ring strip installed inside the sound-absorbing sleeve, the bottom end of the ring strip is fixedly connected to a connecting tube, the top of the ring strip is fixedly connected to a sticky plate, the connecting tube is connected with a ring strip running through the inside, the ring strip is composed of a pull rope and a ring frame, the pull rope runs through the interior of the explosion-proof shell, one end of the ring strip close to the mounting seat is fixedly connected to a straight bar, the end of the straight bar is fixedly connected to an oblique bar, the bottom end of the oblique bar is hinged to a support seat, the top center of the support seat is fixedly connected to a guide rod, and the bottom end of the support seat is fixedly connected to a mounting seat.

[0007] Furthermore, the annular strip is located below the annular strip, the connecting tube is fixedly connected to the bottom of the sound-absorbing collar, and a space for accommodating the connecting tube is reserved between the sound-absorbing collar and the mesh cover.

[0008] Furthermore, a return spring is arranged between the straight bar and the guide rod, the sound absorbing ring is in a honeycomb shape, the sound absorbing ring is made of foam material, and has a plurality of honeycomb holes inside.

[0009] Furthermore, the bottom of the explosion-proof shell has a disassembly component, which is used to quickly disassemble or install the mesh cover. The disassembly component includes a slider installed at the bottom of the explosion-proof shell, a cross plate is fixedly connected to the outer side of the bottom end of the slider, an elastic plate is fixedly connected to the top of the cross plate, and a slide groove 1 and a slide groove 2 are provided inside the mesh cover, a lock hole is provided inside the slide groove 1, and the slide groove 1 is connected to the slide groove 2.

[0010] Furthermore, the second slide groove is of an inclined shape, the interior of the lock hole matches the size of the elastic plate, the elastic plate has an arc edge, and the outer side of the elastic plate is engaged with the lock hole.

[0011] Furthermore, an anti-detachment component is installed inside the sleeve, and the anti-detachment component is used to clamp the explosion-proof shell inside the ceiling. The anti-detachment component includes a screw that passes through the inside of the mesh cover, and the top of the screw passes through the inside of the sleeve. The screw and the sleeve are connected, and the top of the screw is slidably connected to a lifting column, and a downward pressure column is fixed to the side of the lifting column, and a nut buckle is fixed to the top of the lifting column. A limiting groove 1 is provided on the side of the sleeve, and a limiting groove 2 is provided on the top of the sleeve.

[0012] Furthermore, a notch is provided at the bottom of the lifting column, and a texture corresponding to the screw is provided inside the lifting column.

[0013] Furthermore, an inclined groove is provided in the mesh cover, an upright piece is slidably connected inside the inclined groove, a blocking plate is fixedly connected to the top of the upright piece, the inclined groove is adapted to the internal texture of the upright piece, and the upright piece is slidably connected to the inclined groove.

[0014] Furthermore, the widths of the two ends of the blocking plate are different, and the distances between the two ends of the inclined groove and the mesh cover are different.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. The embedded lightweight ceiling speaker box described in the present invention moves upward synchronously through the pull rope in the annular strip, and the connecting tube limits the pull rope of the annular strip. The pull rope drags the ring strip to gradually move downward, and the ring strip drags the sound-absorbing cotton downward to move synchronously. The sound-absorbing cotton is gradually embedded downward into the interior of the sound-absorbing ring. After being limited by the sound-absorbing ring, it has the function of automatic collection to prevent the sound-absorbing cotton from being deformed and disordered inside the explosion-proof shell. When playing audio, the sound-absorbing cotton can be stuck in the sound-absorbing ring to perform double-layer sound quality absorption processing for mixing, etc. During inspection and disassembly, the sound-absorbing cotton can be stuck in the inside of the sound-absorbing ring in an orderly manner, so as to automatically straighten out the sound-absorbing cotton and prevent the sound-absorbing cotton from being scattered and disordered during disassembly.

[0017] 2. The embedded lightweight ceiling speaker box described in the present invention drives the elastic plate to move synchronously through the transverse plate. The elastic plate slides downward against the inner wall of the slide groove, and the elastic plate slides into the lock hole along the inside of the slide groove. At this time, the force of the elastic plate against the inner wall of the slide groove is lost, the elastic plate pops up, and the elastic plate is gradually stuck into the inside of the lock hole, thereby forming a lock, which plays the function of quick positioning and achieves the purpose of quick fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Figure 1 It is an overall schematic diagram of the present invention;

[0020] Figure 2 Schematic diagram of the explosion-proof housing of the present invention;

[0021] Figure 3 is a side view schematic diagram of the sound absorbing sleeve ring of the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of the finishing assembly of the present invention;

[0023] Figure 5 It is a schematic diagram of the ring strip structure of the finishing assembly of the present invention;

[0024] Figure 6 is a top view of the adhesive plate structure of the finishing assembly of the present invention;

[0025] Figure 7 It is a schematic diagram of the cooperation between the disassembly assembly and the explosion-proof housing of the present invention;

[0026] Figure 8 It is a schematic diagram of the cooperation between the disassembly component and the anti-separation component of the present invention;

[0027] Fig. 9 It is a schematic diagram of the cooperation between the anti-separation component and the mesh cover of the present invention;

[0028] Fig.10 It is an overall schematic diagram of the anti-separation component of the present invention;

[0029] Fig.11 Schematic diagram of the blocking plate of the present invention.

[0030] In the figure: 1. mesh cover; 2. mounting base; 3. explosion-proof housing; 5. main board; 6. sleeve; 7. speaker; 8. sound-absorbing collar; 9. sound-absorbing cotton; 21. support base; 22. guide rod; 23. oblique strip; 24. straight strip; 25. ring strip; 26. connecting tube; 27. ring strip; 28. adhesive plate; 31. slider; 32. horizontal plate; 33. elastic plate; 34. slide groove one; 35. lock hole; 36. slide groove two; 61. screw; 62. lifting column; 63. pressure column; 64. nut buckle; 65. limit groove one; 66. limit groove two; 67. blocking plate; 68. upright piece; 60. oblique groove. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0032] Combination Figure 1 and Figure 3 As shown, an embedded lightweight ceiling speaker box described in an embodiment of the present invention includes a mesh cover 1, an explosion-proof shell 3 is clamped at the top center of the mesh cover 1, two mounting seats 2 are installed on the outer edge of the top of the mesh cover 1, the top of the explosion-proof shell 3 passes through and connects to the center of the ceiling, a main board 5 is fixedly connected to the center of the top of the explosion-proof shell 3, a jack is provided on the top of the main board 5, a plurality of sleeves 6 are fixedly connected above the outer edge of the mesh cover 1, and the tops of the plurality of sleeves 6 are connected to the ceiling, a sound-absorbing ring 8 is fixedly connected to the inside of the explosion-proof shell 3, a speaker 7 is transferred to the sound-absorbing ring 8, sound-absorbing cotton 9 is installed inside the sound-absorbing ring 8 and outside the speaker 7, a tidying component is installed on the top of the mounting seat 2, and the tidying component pushes and pulls the sound-absorbing cotton 9 out of the sound-absorbing ring 8 by lifting and rotating.

[0033] During operation, when installing the ceiling speaker, the embodiment of the present invention is used. First, the device is applied to the use scenario of the indoor roof. When embedded, the electrical connection line is first inserted into the jack of the main board 5, and then the speaker 7 and the sound-absorbing ring 8 are installed in the explosion-proof shell 3. Then, the sound-absorbing cotton 9 is inserted into the inside of the sound-absorbing ring 8. At this time, the height of the sound-absorbing cotton 9 is higher than the sound-absorbing ring 8. After the explosion-proof shell 3 is embedded upward into the ceiling, the explosion-proof shell 3 is pressed down and rotated to clamp the explosion-proof shell 3 in the mesh cover 1, thereby making the embedded sound-absorbing speaker stable. When the explosion-proof shell 3 is pressed down, the explosion-proof shell 3 will contact the finishing component, and the finishing component is pressed down. And movement, after the movement, the sound-absorbing cotton 9 inside the sound-absorbing ring 8 is gradually dragged, and the sound-absorbing cotton 9 as a whole moves downward from the top along the inside of the sound-absorbing ring 8. Under the limitation of the internal space of the sound-absorbing ring 8, the sound-absorbing cotton 9 is neatly and orderly collected inside the explosion-proof shell 3, so as to avoid the situation that the sound-absorbing cotton 9 is easily extended outward and piled up in a mess during installation or removal, and after deformation, the outermost side of the sorting component is affected by the downward pressure of the explosion-proof shell 3, and gradually squeezed inward from the outside of the explosion-proof shell 3 to form a peripheral support for the explosion-proof shell 3, which has the effect of conveniently improving the sound quality, preventing the sound-absorbing cotton 9 from being messy, and improving the stability; it should be noted that the outer periphery of the explosion-proof shell 3 needs to match the hole position of the ceiling.

[0034] Combination Figure 4 and Figure 6 As shown, the finishing assembly includes a ring strip 27 installed inside the sound-absorbing sleeve 8, the bottom end of the ring strip 27 is fixedly connected to a connecting tube 26, the top of the ring strip 27 is fixedly connected to a sticking plate 28, the inside of the connecting tube 26 is connected with a ring strip 25, the ring strip 25 is composed of a pull rope and a ring frame, the pull rope runs through the inside of the explosion-proof housing 3, the end of the ring strip 25 close to the mounting seat 2 is fixedly connected to a straight strip 24, the end of the straight strip 24 is fixedly connected to an oblique strip 23, the bottom end of the oblique strip 23 is hinged to a support seat 21, the top of the support seat 21 A guide rod 22 is fixedly connected to the center of the part, and a mounting seat 2 is fixedly connected to the bottom end of the support seat 21; the annular strip 25 is located below the annular strip 27, the connecting tube 26 is fixedly connected to the bottom of the sound-absorbing ring 8, and a space for accommodating the connecting tube 26 is reserved between the sound-absorbing ring 8 and the mesh cover 1; a reset spring is arranged between the straight strip 24 and the guide rod 22, the sound-absorbing ring 8 is in a honeycomb shape, the sound-absorbing ring 8 is made of foam material, and has a plurality of honeycomb holes therein, which are conducive to offsetting the mixing and facilitate the sound-absorbing cotton 9 to change the mixing.

[0035] During operation, since the ceiling speakers use the internal space of the ceiling as the sound cavity, the sound effect is easily lost due to the absorption of air and the reflection of the ceiling, resulting in mixing. Usually, sound-absorbing cotton 9 is added to suppress mixing or noise. The sound-absorbing cotton 9 is usually directly stuffed into the speakers. However, with the removal of the sound-absorbing cotton 9 during maintenance, it is difficult to install the sound-absorbing cotton 9 in the original position after it is detached. The sound-absorbing cotton 9 may even become scattered or messy, which may interfere with the installation of electrical connecting lines and affect the effect of improving the sound quality. Even when using the embodiment of the present invention, it is necessary to first install the sound-absorbing cotton 9 on the top of the ring strip 27, and the adhesive plate 28 adsorbs one side of the sound-absorbing cotton 9. During maintenance, it is necessary to first move the explosion-proof housing 3 upward by hand to separate it from the mesh cover 1 The explosion-proof shell 3 will drive the annular strip 25 to move upward, and the pull rope in the annular strip 25 will move upward synchronously. The connecting tube 26 limits the pull rope of the annular strip 25, and the pull rope drags the annular strip 27 to move downward gradually. The annular strip 27 drags the sound-absorbing cotton 9 downward to move synchronously, and the sound-absorbing cotton 9 is gradually embedded downward into the interior of the sound-absorbing collar 8. After being limited by the sound-absorbing collar 8, it has the function of automatic collection to prevent the sound-absorbing cotton 9 from being deformed and confused inside the explosion-proof shell 3. When playing audio, the sound-absorbing cotton 9 can be stuck in the sound-absorbing collar 8 to perform double-layer sound quality absorption processing on mixing, etc. During maintenance and disassembly, the sound-absorbing cotton 9 is orderly raised and lowered inside the sound-absorbing collar 8, thereby automatically straightening out the sound-absorbing cotton 9 to prevent the sound-absorbing cotton 9 from being scattered and confused during disassembly.

[0036] When the pull rope of the annular bar 25 rises, it will pull the straight bar 24 to move, the straight bar 24 is gradually tightened, the distance between the straight bar 24 and the ring frame of the annular bar 25 is shortened, the straight bar 24 squeezes the reset spring, and the oblique bar 23 gradually moves synchronously with the straight bar 24. When the oblique bar 23 moves, it moves toward the direction close to the explosion-proof shell 3. The oblique bar 23 gradually squeezes the outer periphery of the explosion-proof shell 3, and the oblique bar 23 supports the explosion-proof shell 3, thereby improving the stability of use.

[0037] Combination Figures 7 and 8 As shown, the bottom of the explosion-proof shell 3 has a disassembly component, which is used to quickly disassemble or install the mesh cover 1. The disassembly component includes a slider 31 installed at the bottom of the explosion-proof shell 3, a cross plate 32 is fixedly connected to the outer side of the bottom end of the slider 31, and an elastic plate 33 is fixedly connected to the top of the cross plate 32. A slide groove 1 34 and a slide groove 2 36 are provided inside the mesh cover 1, a lock hole 35 is provided inside the slide groove 1 34, and the side of the slide groove 1 34 is connected to the slide groove 2 36; the slide groove 2 36 is inclined in shape, the inside of the lock hole 35 matches the size of the elastic plate 33, the elastic plate 33 has an arc edge, and the outer side of the elastic plate 33 is snap-fitted with the lock hole 35.

[0038] When working, before embedding into the interior of the ceiling, sometimes due to the error of plugging in the wire or poor contact, there may be a loss of sound, etc., and the explosion-proof housing 3 needs to be disassembled for inspection first. At present, the disassembly is mainly carried out by the cooperation of the screws 61 and the nut buckles 64, which is relatively inconvenient and prolongs the inspection time. Therefore, when the explosion-proof housing 3 and the mesh cover 1 need to be combined using the embodiment of the present invention, the explosion-proof housing 3 is pressed downward by hand, and the explosion-proof housing 3 pushes the slider 31 downward to move, and the slider 31 drives the cross plate 32 to move synchronously, and the cross plate 32 drives the elastic plate 33 to move synchronously, and the elastic plate 33 slides downward against the inner wall of the slide groove 1 34, and the elastic plate 33 slides along the inside of the slide groove 1 34 to the lock hole 35. At this time, the elastic plate 33 loses the force against the inner wall of the slide groove 1 34, and the elastic plate 33 pops up, and the elastic plate 33 is gradually stuck into the inside of the lock hole 35, thereby forming a lock, which plays the function of rapid positioning and achieves the purpose of rapid fixing;

[0039] When disassembly is required, the explosion-proof shell 3 is directly rotated, and the rotation of the explosion-proof shell 3 gradually drives the elastic plate 33 to move. The elastic plate 33 rotates along the arc edge and slides out from the lock hole 35, passes through the inner wall of the slide groove 1 34, and then slides out from the slide groove 2 36, so that the device has the function of quick separation, thereby achieving the purpose of quick disassembly.

[0040] Combination Figures 9 and 10 As shown, an anti-separation component is installed inside the sleeve 6, and the anti-separation component is used to clamp the explosion-proof shell 3 inside the ceiling. The anti-separation component includes a screw 61 that passes through the inside of the mesh cover 1, and the top of the screw 61 passes through the inside of the sleeve 6. The screw 61 is connected to the sleeve 6, and the top of the screw 61 is slidably connected to a lifting column 62, and a downward pressure column 63 is fixed to the side of the lifting column 62. A nut buckle 64 is fixed to the top of the lifting column 62, and the nut buckle 64 is used to connect the ceiling. A limiting groove 1 65 is provided on the side of the sleeve 6, and a limiting groove 2 66 is provided on the top of the sleeve 6; a notch is provided at the bottom of the lifting column 62, and a texture corresponding to the screw 61 is provided inside the lifting column 62.

[0041] During operation, after the ceiling speaker is installed in the ceiling, mice and the like are often hidden in the inner cavity of the ceiling. After long-term shaking and the downward action of gravity, the screw 61 is easy to fall from the inside of the nut buckle 64 over time, causing the screw 61 inside the nut buckle 64 to lose its fixing force, causing the mesh cover 1 to fall from the ceiling, and even hit people in serious cases. Using the embodiment of the present invention, the explosion-proof housing 3 is inserted into the ceiling, and at this time, the screw 61 is turned, and the screw 61 gradually drills into the inside of the sleeve 6 and extends to the notch of the lifting column 62. After the screw 61 drills into the lifting column 62 , the screw 61 drives the lifting column 62 and the lower pressure column 63 to move synchronously, the lower pressure column 63 slides upward along the inside of the limiting groove 1 65, and the lifting column 62 continues to move upward. When the lifting column 62 moves to a position flush with the limiting groove 2 66, the screw 61 is twisted again, and the screw 61 rotates to drive the lower pressure column 63 to rotate into the inside of the limiting groove 2 66. After the positioning process between the limiting groove 2 66 and the sleeve 6, the screw 61 is locked in the inside of the limiting groove 2 66, reducing the probability of the screw 61 falling down from the inside of the nut buckle 64, so that the device has an auxiliary function of automatic anti-falling.

[0042] Combination Figure 10 to Figure 11 As shown, an inclined groove 60 is opened in the mesh cover 1, and an upright piece 68 is slidably connected inside the inclined groove 60. A blocking plate 67 is fixedly connected to the top of the upright piece 68. The internal textures of the inclined groove 60 and the upright piece 68 are adapted, and the upright piece 68 is slidably connected to the inclined groove 60; the two ends of the blocking plate 67 have different widths, and the distances between the two ends of the inclined groove 60 and the mesh cover 1 are different.

[0043] During operation, after the screw 61 is embedded and installed in the sleeve 6, when it is necessary to lock the mesh cover 1 and the ceiling, the embodiment of the present invention is used to install the screw 61, and the upright member 68 is moved from the bottom by hand. The upright member 68 rotates, and the upright member 68 gradually slides along the inside of the inclined groove 60, and the blocking plate 67 gradually moves. The inclined groove 60 gradually moves toward the outside, and the blocking plate 67 gradually slides outward along the limit of the inclined groove 60. When the blocking plate 67 slides to the outermost side, the longer end of the blocking plate 67 is stuck on the top of the mesh cover 1, and the blocking plate 67 extends outward to the outside of the diameter of the mesh cover 1, so that the mesh cover 1 will be blocked by the blocking plate 67 when it falls down. It has the functions of rapid protection and disassembly, and improves the locking effect of the mesh cover 1 and the ceiling.

[0044] Working principle: When working, since the ceiling speakers use the internal space of the ceiling as the sound cavity, the sound effect is easily limited by the material and density of the ceiling, resulting in sound quality loss due to air absorption and ceiling reflection, causing mixing. Usually, sound-absorbing cotton 9 is added to suppress mixing or noise. The sound-absorbing cotton 9 is usually directly stuffed into the speaker. However, with the removal of the sound-absorbing cotton 9 during maintenance, it is difficult to install the sound-absorbing cotton 9 in the original position after it is detached. The sound-absorbing cotton 9 may even become scattered or messy, affecting the processing of sound mixing, and even interfering with the installation of electrical connecting lines when it is messy. When using the embodiment of the present invention, the sound-absorbing cotton 9 needs to be installed on the top of the ring strip 27 first, and the adhesive plate 28 adsorbs one side of the sound-absorbing cotton 9. During maintenance, the sound-absorbing cotton 9 needs to be manually removed. The explosion-proof shell 3 moves upward and separates from the mesh cover 1. The explosion-proof shell 3 moves upward, which will drive the annular strip 25 to move. The pull rope in the annular strip 25 moves upward synchronously. The connecting tube 26 limits the pull rope of the annular strip 25. The pull rope drags the annular strip 27 to gradually move downward. The annular strip 27 drags the sound-absorbing cotton 9 downward to move synchronously. The sound-absorbing cotton 9 is gradually embedded downward into the interior of the sound-absorbing collar 8. After being limited by the sound-absorbing collar 8, it has the function of automatic collection to prevent the sound-absorbing cotton 9 from being deformed and confused inside the explosion-proof shell 3. When playing audio, the sound-absorbing cotton 9 can be stuck in the sound-absorbing collar 8 to perform double-layer sound quality adsorption processing on mixing, etc. During maintenance and disassembly, the sound-absorbing cotton 9 is orderly stuck in the inside of the sound-absorbing collar 8, which automatically straightens out the sound-absorbing cotton 9 to prevent the sound-absorbing cotton 9 from being scattered and confused during disassembly.

[0045] When the pull rope of the annular bar 25 rises, it will pull the straight bar 24 to move, the straight bar 24 is gradually tightened, the distance between the straight bar 24 and the ring frame of the annular bar 25 is shortened, the straight bar 24 squeezes the reset spring, and the oblique bar 23 gradually moves synchronously with the straight bar 24. When the oblique bar 23 moves, it moves toward the direction close to the explosion-proof shell 3. The oblique bar 23 gradually squeezes the outer periphery of the explosion-proof shell 3, and the oblique bar 23 supports the explosion-proof shell 3, thereby improving the stability of use.

[0046] After the ceiling speaker is installed in the ceiling, mice and the like are often hidden in the inner cavity of the ceiling. After long-term shaking and the downward force of gravity, the screw 61 is easy to fall from the inside of the nut buckle 64 over time, causing the screw 61 inside the nut buckle 64 to lose its fixing force, causing the mesh cover 1 to fall from the ceiling, and even hit people in serious cases. Using the embodiment of the present invention, the explosion-proof housing 3 is stuck in the ceiling, and at this time, the screw 61 is turned, and the screw 61 gradually drills into the inside of the sleeve 6 and extends to the notch of the lifting column 62. The screw 61 drills into the lifting column 62. Afterwards, the screw 61 drives the lifting column 62 and the lower pressure column 63 to move synchronously, the lower pressure column 63 slides upward along the inside of the limit groove 1 65, and the lifting column 62 continues to move upward. When the lifting column 62 moves to a position flush with the limit groove 2 66, the screw 61 is twisted again, and the screw 61 rotates to drive the lower pressure column 63 to rotate into the inside of the limit groove 2 66. After the positioning process between the limit groove 2 66 and the sleeve 6, the screw 61 is locked in the inside of the limit groove 2 66, reducing the probability of the screw 61 falling down from the inside of the nut buckle 64, thereby enabling the device to have an auxiliary function of automatically preventing it from falling off.

[0047] After the screw 61 is embedded and installed inside the sleeve 6, when it is necessary to lock the mesh cover 1 and the ceiling, using the embodiment of the present invention, when installing the screw 61, the upright member 68 is moved from the bottom by hand, and the upright member 68 rotates. The upright member 68 gradually slides along the inside of the inclined groove 60, and the blocking plate 67 gradually moves. The inclined groove 60 gradually moves toward the outside, and the blocking plate 67 gradually slides outward along the limit of the inclined groove 60. When the blocking plate 67 slides to the outermost side, the longer end of the blocking plate 67 is stuck on the top of the mesh cover 1, and the blocking plate 67 extends outward to the outside of the diameter of the mesh cover 1, so that the mesh cover 1 will be blocked by the blocking plate 67 when it falls down. The function of quick disassembly is improved, and the locking effect of the mesh cover 1 and the ceiling is improved.

[0048] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An embedded lightweight ceiling speaker box, characterized by: The invention comprises a mesh cover (1), wherein an explosion-proof housing (3) is clamped at the center of the top of the mesh cover (1), two mounting seats (2) are installed at the outer edge of the top of the mesh cover (1), the top of the explosion-proof housing (3) is connected to the center of the ceiling, a main board (5) is fixedly connected to the center of the top of the explosion-proof housing (3), a plug hole is provided at the top of the main board (5), a plurality of sleeves (6) are fixedly connected above the outer edge of the mesh cover (1), the tops of the plurality of sleeves (6) are connected to the ceiling, a sound-absorbing ring (8) is fixedly connected inside the explosion-proof housing (3), a speaker (7) is connected inside the sound-absorbing ring (8), a sound-absorbing cotton (9) is installed inside the sound-absorbing ring (8) and outside the speaker (7), a tidying component is installed on the top of the mounting seat (2), and the tidying component pushes out and pulls in the sound-absorbing ring (8) by lifting and rotating the sound-absorbing cotton (9); The tidying component comprises a ring strip (27) installed inside the sound-absorbing sleeve (8), the bottom end of the ring strip (27) is fixedly connected to a connecting tube (26), the top of the ring strip (27) is fixedly connected to a sticking plate (28), the inside of the connecting tube (26) is connected with a ring strip (25), the ring strip (25) is composed of a pull rope and a ring frame, the pull rope runs through the inside of the explosion-proof housing (3), one end of the ring strip (25) close to the mounting seat (2) is fixedly connected to a straight strip (24), the end of the straight strip (24) is fixedly connected to an oblique strip (23), the bottom end of the oblique strip (23) is hinged to a support seat (21), the top center of the support seat (21) is fixedly connected to a guide rod (22), and the bottom end of the support seat (21) is fixedly connected to the mounting seat (2); The bottom of the explosion-proof housing (3) is provided with a disassembly assembly, and the disassembly assembly is used to quickly disassemble or install the mesh cover (1). The disassembly assembly includes a slider (31) installed at the bottom of the explosion-proof housing (3), a horizontal plate (32) is fixedly connected to the outer side of the bottom end of the slider (31), and an elastic plate (33) is fixedly connected to the top end of the horizontal plate (32). The mesh cover (1) is provided with a first slide groove (34) and a second slide groove (36), a lock hole (35) is provided inside the first slide groove (34), and the side of the first slide groove (34) is connected to the second slide groove (36); The second slide groove (36) is in an inclined shape, the interior of the locking hole (35) matches the size of the elastic plate (33), the elastic plate (33) has an arc edge, and the elastic plate (33) is snap-fitted with the locking hole (35).

2. The embedded lightweight ceiling speaker box according to claim 1, characterized in that: The annular strip (25) is located below the annular strip (27), the connecting tube (26) is fixedly connected to the bottom of the sound-absorbing sleeve (8), and a space for accommodating the connecting tube (26) is reserved between the sound-absorbing sleeve (8) and the mesh cover (1).

3. The embedded lightweight ceiling speaker box according to claim 1, characterized in that: A return spring is provided between the straight strip (24) and the guide rod (22); the sound-absorbing collar (8) is in a honeycomb shape; the sound-absorbing collar (8) is made of a foam material; and a plurality of honeycomb holes are provided in the sound-absorbing collar (8).

4. The embedded lightweight ceiling speaker box according to claim 1, characterized in that: An anti-detachment component is installed inside the sleeve (6), and the anti-detachment component is used to lock the explosion-proof housing (3) inside the ceiling. The anti-detachment component includes a screw (61) that passes through the inside of the mesh cover (1), the top of the screw (61) passes through the inside of the sleeve (6), the screw (61) and the sleeve (6) are switched, the top of the screw (61) is slidably connected to a lifting column (62), the side of the lifting column (62) is fixedly connected to a downward pressure column (63), the top of the lifting column (62) is fixedly connected to a nut buckle (64), the side of the sleeve (6) is provided with a first limiting groove (65), and the top of the sleeve (6) is provided with a second limiting groove (66).

5. The embedded lightweight ceiling speaker box according to claim 4, characterized in that: A notch is provided at the bottom of the lifting column (62), and a texture corresponding to the screw (61) is provided inside the lifting column (62).

6. The embedded lightweight ceiling speaker box according to claim 4, characterized in that: The mesh cover (1) is provided with an inclined groove (60), a vertical piece (68) is slidably connected inside the inclined groove (60), a blocking plate (67) is fixedly connected to the top of the vertical piece (68), the internal textures of the inclined groove (60) and the vertical piece (68) are matched, and the vertical piece (68) is slidably connected to the inclined groove (60).

7. The embedded lightweight ceiling speaker box according to claim 6, characterized in that: The widths of the two ends of the blocking plate (67) are different, and the distances between the two ends of the inclined groove (60) and the mesh cover (1) are different.

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