A sound box installed in a hidden wall

CN224863079UActive Publication Date: 2026-10-16SHANGHAI YESE ELECTRONIC TECH CO LTD
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Patent Information

Application Number
CN202522053461.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-24
Publication Date
2026-10-16
Estimated Expiration
2035-09-24

AI Technical Summary

Technical Problem

[0003]现有隐墙式音箱通常采用一体化结构或半模块化设计,主要由前盖、扬声器单元、电路板及外壳组成,安装时需通过螺丝固定或胶水粘合与墙体结构连接,部分产品支持前盖拆卸,但核心功能模块(如扬声器、电路板)仍为固定集成设计,当内部部件(如扬声器单元老化、电路板故障)需要维修或更换时,需将音箱整体从墙体中取出,甚至需破坏墙体结构(如拆除部分石膏板、撬动固定框架),不仅操作繁琐、耗时费力,维护成本高、难度大,为此,本实用新型提出了一种隐墙式安装的音箱

Benefits of technology

[0017] 1. Modular and independent design, quick disassembly and assembly without damage: This technical solution uses a modular design of circuit board template and speaker module, combined with a convenient disassembly and assembly mechanism. It can achieve independent disassembly and assembly of modules by using limiting rods, limiting through holes and limiting grooves, as well as threaded fixing rods and fixing nuts. There is no need to disassemble the shell or damage the wall. The module can be disassembled and assembled by simply turning the fixing nut and pulling the moving sleeve. The operation is simple and convenient, saving time and effort, and reducing maintenance costs and time.

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Abstract

The utility model discloses a kind of sound boxes of hidden wall type installation, it is related to sound box technical field, including wall and shell, wall is dug with mounting groove, and shell is located in mounting groove, and is closely contacted with it, shell is connected with the inner wall of mounting groove by cross screw, the inner portion of shell is equipped with circuit board template and loudspeaker module respectively, the inside of mounting groove is equipped with decorative cover, and the outer wall of decorative cover is closely contacted with the inner wall of mounting groove.The utility model is through the modularization design cooperation of circuit board template and loudspeaker module with convenient dismounting mechanism, can utilize the limiting fixing of limiting rod, limiting through-hole and limiting groove and the thread fixing of fixed threaded rod and fixed nut, module independent dismounting can be realized, shell or wall is not needed to be disassembled or damaged, only by screwing fixed nut, pulling mobile sleeve board can complete module dismounting, it is simple and convenient to operate, save time and labor, reduce maintenance cost and time.
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Description

Technical Field

[0001] This utility model belongs to the field of speaker technology, and in particular relates to a speaker that can be installed in a concealed wall. Background Technology

[0002] Concealed wall-mounted speakers are special audio devices that can be embedded in walls, ceilings, or floors. Their surfaces can be covered with decorative materials such as paint or wallpaper, designed to blend seamlessly with the interior design after installation, achieving an "invisible" effect. These speakers often employ planar vibration technology or distributed sound field design, using resonance with the wall or ceiling to diffuse sound more evenly.

[0003] Existing wall-mounted speakers typically employ an integrated or semi-modular design, mainly consisting of a front cover, speaker unit, circuit board, and outer shell. During installation, they need to be fixed to the wall structure with screws or glue. Some products support front cover removal, but the core functional modules (such as speakers and circuit boards) are still fixed integrated designs. When internal components (such as aging speaker units or faulty circuit boards) need to be repaired or replaced, the entire speaker must be removed from the wall, which may even require damaging the wall structure (such as removing part of the plasterboard or prying open the fixing frame). This is not only cumbersome and time-consuming, but also has high maintenance costs and difficulties. Therefore, this utility model proposes a wall-mounted speaker. Utility Model Content

[0004] This utility model provides a wall-mounted speaker enclosure. Through the modular design of the circuit board template and speaker module, combined with a convenient disassembly and assembly mechanism, it utilizes limiting rods, limiting through holes, and limiting grooves for positioning and fixing, as well as threaded fixing rods and fixing nuts for threaded fixing. This allows for independent module disassembly and assembly without disassembling the housing or damaging the wall. Module disassembly and assembly can be completed simply by tightening the fixing nut and pulling the movable sleeve. The operation is simple and convenient, saving time and effort, and reducing maintenance costs and time. Furthermore, the fixing mechanism utilizes the magnetic fixing of the first and second magnets, along with the insertion and fixing of the insert and slot, to achieve convenient installation and removal of the decorative cover without the need for tools. This convenience and speed solve the problems in the background technology.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model discloses a wall-mounted speaker, comprising:

[0007] The wall and the housing are provided. The wall has a mounting groove, and the housing is located in the mounting groove and in close contact with it. The housing is connected to the inner wall of the mounting groove by a cross screw. The interior of the housing is provided with a circuit board template and a speaker module. The interior of the mounting groove is provided with a decorative cover plate, and the outer wall of the decorative cover plate is in close contact with the inner wall of the mounting groove.

[0008] The convenient disassembly and assembly mechanism and the fixing mechanism are both located inside the housing, and are used for convenient installation and disassembly between the circuit board template, the speaker module, and the decorative cover and the housing.

[0009] The convenient assembly / disassembly mechanism includes a pair of fixed threaded rods. Two pairs of slide rails are fixedly connected inside the housing, with the fixed threaded rods fixedly connected between opposite sides of the slide rails. Each pair of slide rails has a pair of sliders inside, and both sliders are slidably connected to the slide rails. The two sides of the circuit board template are fixedly connected to four sliders located on the inner side, and the speaker module is fixedly connected to four sliders located on the outer side. The housing has two pairs of movable sleeves inside, each with a circular sleeve hole. Each pair of movable sleeves is fitted onto the outer wall of the fixed threaded rods through the circular sleeve hole. Each pair of fixed threaded rods has a pair of fixed nuts threadedly connected to its outer wall, with the opposite sides of the fixed nuts in close contact with the opposite sides of the movable sleeves. Each pair of movable sleeves has two pairs of limiting rods fixedly connected to its opposite sides. Each pair of slide rails has two pairs of limiting through holes on opposite sides. Each pair of sliders on one side has a limiting groove on its opposite side, with the end of the limiting rod away from the movable sleeve passing through the limiting through hole and extending into the limiting groove.

[0010] Furthermore, the outer wall dimensions of the decorative cover plate match the outer wall dimensions of the housing, and the decorative cover plate is flush with the wall.

[0011] Furthermore, the outer wall of the fixed threaded rod is provided with external threads, and the fixed nut is threadedly connected to the fixed threaded rod through the external threads.

[0012] Furthermore, each of the two movable sleeves is provided with a ferrite magnetic coating on its opposite sides, and the movable sleeves are magnetically attracted to the fixed nut through the ferrite magnetic coating.

[0013] Furthermore, a handle groove is carved on the side of the pair of movable sleeves near the decorative cover, and the handle groove is rectangular.

[0014] Furthermore, the fixing mechanism includes four pairs of first magnet blocks, one side of each of the four pairs of first magnet blocks is fixedly connected to the side of the decorative cover plate near the slide rail, the top and bottom ends of each of the two pairs of slide rails are fixedly connected to second magnet blocks, and the opposite sides of the first magnet blocks and the second magnet blocks attract each other, and both sides of each of the four pairs of second magnet blocks are fixedly connected to fixing blocks, and each pair of fixing blocks is inserted into the first magnet blocks.

[0015] Furthermore, a pair of inserts are fixedly connected to the side of the first magnet block near the fixing block. Each pair of fixing blocks has a slot, and the inserts are located in the slots and in close contact with them. Both the inserts and the slots are trapezoidal in shape.

[0016] The present invention has the following advantages over the prior art:

[0017] 1. Modular and independent design, quick disassembly and assembly without damage: This technical solution uses a modular design of circuit board template and speaker module, combined with a convenient disassembly and assembly mechanism. It can achieve independent disassembly and assembly of modules by using limiting rods, limiting through holes and limiting grooves, as well as threaded fixing rods and fixing nuts. There is no need to disassemble the shell or damage the wall. The module can be disassembled and assembled by simply turning the fixing nut and pulling the moving sleeve. The operation is simple and convenient, saving time and effort, and reducing maintenance costs and time.

[0018] 2. Tool-free and easy installation and removal: This technical solution uses a fixing mechanism to fix the decorative cover plate by magnetic attraction of the first and second magnet blocks and by insertion of the insert and slot. This allows for easy installation and removal of the cover plate without the need for tools, making it convenient and quick.

[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of a wall-mounted speaker according to the present invention.

[0022] Figure 2 This is a partial disassembled structural diagram of a wall-mounted speaker according to the present invention.

[0023] Figure 3 This is a partial cross-sectional and disassembled structural diagram of a wall-mounted speaker according to the present invention.

[0024] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A;

[0025] Figure 5 This is a partial cross-sectional and disassembled structural diagram of a wall-mounted speaker according to this utility model from another perspective.

[0026] Figure 6 This utility model Figure 5 A magnified structural diagram at point B in the middle.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1. Wall; 2. Housing; 3. Mounting slot; 4. Circuit board template; 5. Speaker module; 6. Decorative cover plate; 7. Slide rail; 8. Slider; 9. Easy disassembly and assembly mechanism; 901. Fixed threaded rod; 902. Moving sleeve plate; 903. Fixed nut; 904. Limiting rod; 905. Limiting through hole; 906. Limiting groove; 907. Lifting groove; 10. Fixing mechanism; 1001. First magnet block; 1002. Second magnet block; 1003. Fixing block; 1004. Insertion block; 1005. Slot. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] In the description of this utility model, it should be understood that the terms "relative", "one end", "inner", "lateral", "end", "both ends", "both sides", "front", "one end face", "the other end face", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Specific Implementation Example 1:

[0032] Please see Figures 1-6 As shown, a wall-mounted speaker according to this utility model includes:

[0033] The wall 1 and the housing 2 are provided. The wall 1 has a mounting groove 3, and the housing 2 is located in the mounting groove 3 and in close contact with it. The housing 2 is connected to the inner wall of the mounting groove 3 by a cross screw. The inside of the housing 2 is provided with a circuit board template 4 and a speaker module 5. The inside of the mounting groove 3 is provided with a decorative cover plate 6, and the outer wall of the decorative cover plate 6 is in close contact with the inner wall of the mounting groove 3.

[0034] The convenient disassembly and assembly mechanism 9 and the fixing mechanism 10 are both located inside the housing 2, and are used for convenient installation and disassembly between the circuit board template 4, the speaker module 5, and the decorative cover plate 6 and the housing 2.

[0035] The convenient assembly / disassembly mechanism 9 includes a pair of fixed threaded rods 901. Two pairs of slide rails 7 are fixedly connected inside the housing 2, with the fixed threaded rods 901 fixedly connected between opposite sides of the pair of slide rails 7. Each pair of slide rails 7 has a pair of sliders 8 inside, and both sliders 8 are slidably connected to the slide rails 7. The two sides of the circuit board template 4 are fixedly connected to four sliders 8 located on the inner side, and the speaker module 5 is fixedly connected to four sliders 8 located on the outer side. The housing 2 has two pairs of movable sleeves 902 inside, and each movable sleeve 902 has a circular hole drilled in it. Each pair of movable sleeves 902 passes through the circular hole. A pair of fixed nuts 903 are threaded onto the outer wall of a pair of fixed threaded rods 901. The opposite sides of the pair of fixed nuts 903 are in close contact with the opposite sides of a pair of movable sleeves 902. Two pairs of limiting rods 904 are fixedly connected to the opposite sides of the pair of movable sleeves 902. Two pairs of limiting through holes 905 are drilled on the opposite sides of the two pairs of slide rails 7. Limiting grooves 906 are drilled on the opposite sides of the two pairs of sliders 8 located on one side. The end of the limiting rod 904 away from the movable sleeve 902 passes through the limiting through hole 905 and extends into the limiting groove 906.

[0036] In the specific implementation process, the worker takes the housing 2 and inserts it into the mounting groove 3, and tightens the Phillips head screws to connect and fix it. Then, the worker takes the circuit board template 4 and moves the four inner sliders 8 into the two pairs of slide rails 7, so that the circuit board template 4 is inserted into the corresponding position inside the housing 2. Next, the worker takes the speaker module 5 and moves the four outer sliders 8 into the two pairs of slide rails 7, so that the speaker module 5 is inserted into the corresponding position inside the housing 2, located on the front side of the circuit board template 4, and electrically connected to the circuit board template 4 (in this embodiment, ...). A 2P plug (2.54mm pin pitch) is integrated at the lower center of the rear end of speaker module 5 (20mm from the lower edge), and a corresponding 2P socket (compatible with the plug) is integrated at the front end of circuit board template 4. When speaker module 5 slides into the preset position along slide rail 7, the plug automatically inserts into the socket to achieve electrical connection. The socket has a foolproof design (protruding positioning) to prevent reverse insertion. Next, the two pairs of movable sleeves 902 are moved along the fixed threaded rod 901 towards slide rail 7, driving the limiting rod 904 through the limiting through hole 905 and inserting it into the limiting position. The limiting and fixing are performed in the groove 906, and the fixing nut 903 is rotated to approach the movable sleeve 902, squeezing and locking the movable sleeve 902, so that the limiting rod 904 is firmly inserted into the limiting groove 906 and fixed, so as to realize the modular independent installation of the circuit board template 4 and the speaker module 5. Then, the decorative cover plate 6 is removed (and in this embodiment, the surface of the decorative panel 6 is reserved with a paint adhesion layer such as frosted ABS material, which is convenient for painting wall latex paint, and can be adapted to the same size replacement surface of different materials such as wood grain stickers and stone texture boards). The board is fixed to the housing 2 by the fixing mechanism 10 and is flush with the wall 1. When it is repaired or replaced, the fixing nut 903 is rotated in the opposite direction to move away from the moving sleeve 902, so as to release the compression. The moving sleeve 902 is then moved to separate the limiting rod 904 from the limiting groove 906. This allows the independent disassembly of the circuit board template 4 and the speaker module 5 without disassembling the housing 2 or damaging the wall 1. The module can be disassembled and assembled simply by turning the fixing nut 903 and pulling the moving sleeve 902. The operation is simple and convenient, saving time and effort and reducing maintenance costs and time.

[0037] The outer wall dimensions of the decorative cover plate 6 match the outer wall dimensions of the shell 2, and the decorative cover plate 6 is flush with the wall 1.

[0038] The decorative cover plate 6 is flush with the wall 1 and fits tightly into the mounting groove 3, eliminating the visual gap between the speaker and the wall, realizing "integration of speaker and wall", and meeting the user's demand for home decoration aesthetics.

[0039] The outer wall of the fixed threaded rod 901 is provided with external threads, and the fixed nut 903 is threadedly connected to the fixed threaded rod 901 through the external threads.

[0040] The fixed threaded rod 901 is threadedly connected to the fixed nut 903 via an external thread, so that the fixed nut 903 can move along the fixed threaded rod 901.

[0041] Among them, the opposite sides of the pair of movable sleeves 902 are provided with ferrite magnetic coating, and the movable sleeves 902 are magnetically attracted to the fixed nut 903 through the ferrite magnetic coating.

[0042] The ferrite magnetic coating (using manganese-zinc ferrite and nickel-zinc ferrite powder with a particle size of 1-5μm as magnetic fillers, and epoxy resin, polyurethane and other resins as binders to form a paste-like coating material) is magnetic. When coated on one side of the movable sleeve plate 902, it can generate magnetic attraction with the fixing nut 903 (M4-M6 steel nut with an adsorption force of 2-5N) and be adsorbed onto the fixing nut 903 so as to temporarily fix it after the limiting rod 904 is separated from the limiting groove 906.

[0043] Among them, a pair of movable sleeve plates 902 have a lifting groove 907 cut on the side near the decorative cover plate 6, and the lifting groove 907 is rectangular.

[0044] The grip groove 907 allows workers to easily move the movable sleeve 902 manually. In this embodiment, the inner wall of the grip groove 907 is treated with anti-slip material (such as knurling) to increase the friction between the fingers and the groove wall and reduce the slippage of the hand. Specific Implementation Example 2:

[0046] Please see Figure 2 , Figure 5 and Figure 6 As shown, in a preferred embodiment, the fixing mechanism 10 includes four pairs of first magnet blocks 1001. One side of each of the four pairs of first magnet blocks 1001 is fixedly connected to the side of the decorative cover plate 6 near the slide rail 7. The top and bottom ends of the two pairs of slide rails 7 are fixedly connected to second magnet blocks 1002. The opposite sides of the first magnet blocks 1001 and the second magnet blocks 1002 attract each other. Fixing blocks 1003 are fixedly connected to both sides of the four pairs of second magnet blocks 1002. Each pair of fixing blocks 1003 is inserted into the first magnet blocks 1001.

[0047] In the specific implementation process, the decorative cover plate 6 is taken out and embedded into the mounting groove 3, and the four pairs of first magnet blocks 1001 are driven to contact the four pairs of second magnet blocks 1002 respectively (both the first magnet blocks 1001 and the second magnet blocks 1002 are neodymium iron boron permanent magnets) and are fixed by magnetic attraction, so that the decorative cover plate 6 is initially fixed. At the same time, the trapezoidal insert 1004 is inserted into the trapezoidal slot 1005, and the outer wall of the decorative cover plate 6 is in close contact with the inner wall of the mounting groove 3 to achieve the fixed installation of the decorative cover plate 6. When replacing it later, the decorative cover plate 6 is pulled outward to separate the first magnet blocks 1001 from the second magnet blocks 1002, and at the same time, the trapezoidal insert 1004 separates from the trapezoidal slot 1005, so that the decorative cover plate 6 can be easily disassembled.

[0048] Among them, a pair of insert blocks 1004 are fixedly connected to the side of the first magnet block 1001 near the fixed block 1003. Each of the two fixed blocks 1003 has a slot 1005, and the insert block 1004 is located in the slot 1005 and in close contact with it. Both the insert block 1004 and the slot 1005 are trapezoidal.

[0049] The decorative cover plate 6 can be fixed by the insertion of the insert 1004 and the slot 1005. The trapezoidal structure has the characteristic of preventing it from falling off. After insertion, the decorative cover plate 6 cannot fall off along the direction perpendicular to the wall, thus improving the stability of the fixation.

[0050] The circuits, electronic components, and chip modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0051] All standard parts used in the application documents can be purchased from the market. All components in this application document can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The electrical components mentioned in this document are all electrically connected to the external main controller and power supply, and the main controller is a conventional known device that can play a control role.

[0052] The working principle of this utility model is as follows:

[0053] In use, the operator takes the housing 2 and inserts it into the mounting groove 3, then tightens the Phillips head screws for connection and fixation. Next, the operator takes the circuit board template 4 and moves the four inner sliders 8 into the two pairs of slide rails 7, so that the circuit board template 4 is inserted into the corresponding position inside the housing 2. Then, the operator takes the speaker module 5 and moves the four outer sliders 8 into the two pairs of slide rails 7, so that the speaker module 5 is inserted into the corresponding position inside the housing 2, located in front of the circuit board template 4, and inserts the plug into the socket on the circuit board template 4 for electrical connection. Next, the operator moves the two pairs of movable sleeves 902 along the fixed threaded rod 901 towards the slide rail 7, causing the limiting rod 904 to pass through the limiting through hole 9. 05, and insert it into the limiting groove 906 for limiting and fixing, and rotate the fixing nut 903 close to the moving sleeve 902 to squeeze and lock the moving sleeve 902, so that the limiting rod 904 is firmly inserted into the limiting groove 906 and fixed, realizing the modular independent installation of the circuit board template 4 and the speaker module 5. Then, take out the decorative cover plate 6 and embed it into the mounting groove 3, and drive the four pairs of first magnet blocks 1001 to contact the four pairs of second magnet blocks 1002 respectively, and fix them by magnetic attraction, so that the decorative cover plate 6 is initially fixed. At the same time, the trapezoidal insert 1004 is inserted into the trapezoidal slot 1005, and the outer wall of the decorative cover plate 6 is in close contact with the inner wall of the mounting groove 3 to realize the fixed installation of the decorative cover plate 6.

[0054] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A wall-mounted speaker, characterized in that, include: The wall (1) and the housing (2) are provided. The wall (1) has a mounting groove (3) and the housing (2) is located in the mounting groove (3) and in close contact with it. The housing (2) is connected to the inner wall of the mounting groove (3) by a cross screw. The interior of the housing (2) is provided with a circuit board template (4) and a speaker module (5). The interior of the mounting groove (3) is provided with a decorative cover plate (6) and the outer wall of the decorative cover plate (6) is in close contact with the inner wall of the mounting groove (3). The convenient disassembly and assembly mechanism (9) and the fixing mechanism (10) are both located inside the housing (2), and the convenient disassembly and assembly mechanism (9) and the fixing mechanism (10) are both used for convenient installation and disassembly between the circuit board template (4), the speaker module (5) and the decorative cover plate (6) and the housing (2); The convenient disassembly and assembly mechanism (9) includes a pair of fixed threaded rods (901). Two pairs of slide rails (7) are fixedly connected inside the housing (2), and the fixed threaded rods (901) are fixedly connected between the opposite sides of the pair of slide rails (7). Each pair of slide rails (7) has a pair of sliders (8) inside, and both sliders (8) are slidably connected to the slide rails (7). The two sides of the circuit board template (4) are fixedly connected to four sliders (8) located on the inner side, and the speaker module (5) is fixedly connected to four sliders (8) located on the outer side. The housing (2) has two pairs of movable sleeves (902) inside, and the movable sleeves (902) have round holes. Each pair of movable sleeves (902) has a... The fixed threaded rod (901) is sleeved on the outer wall of the fixed threaded rod (901) through the circular hole. A pair of fixed nuts (903) are threadedly connected to the outer wall of each pair of fixed threaded rods (901). The opposite sides of the pair of fixed nuts (903) are in close contact with the opposite sides of the pair of movable sleeves (902). Two pairs of limiting rods (904) are fixedly connected to the opposite sides of each pair of sliding rails (7). Two pairs of limiting through holes (905) are drilled on the opposite sides of each pair of sliders (8) located on one side. Limiting grooves (906) are drilled on the opposite sides of each pair of sliders (8) located on one side. The end of the limiting rod (904) away from the movable sleeve (902) passes through the limiting through hole (905) and extends into the limiting groove (906).

2. A wall-mounted speaker according to claim 1, characterized in that, The outer wall dimensions of the decorative cover (6) match the outer wall dimensions of the shell (2), and the decorative cover (6) is flush with the wall (1).

3. A wall-mounted speaker according to claim 1, characterized in that, The outer wall of the fixed threaded rod (901) is provided with external threads, and the fixed nut (903) is threadedly connected to the fixed threaded rod (901) through the external threads.

4. A wall-mounted speaker according to claim 1, characterized in that, The two movable sleeves (902) are provided with ferrite magnetic coating on opposite sides, and the movable sleeves (902) are magnetically attracted to the fixed nut (903) through the ferrite magnetic coating.

5. A wall-mounted speaker according to claim 1, characterized in that, A pair of movable sleeves (902) have a handle groove (907) cut on one side near the decorative cover plate (6), and the handle groove (907) is rectangular.

6. A wall-mounted speaker according to claim 1, characterized in that, The fixing mechanism (10) includes four pairs of first magnet blocks (1001). One side of each of the four pairs of first magnet blocks (1001) is fixedly connected to the side of the decorative cover plate (6) near the slide rail (7). The top and bottom ends of the two pairs of slide rails (7) are fixedly connected to second magnet blocks (1002). The opposite sides of the first magnet blocks (1001) and the second magnet blocks (1002) attract each other. Fixing blocks (1003) are fixedly connected to both sides of the four pairs of second magnet blocks (1002). Each pair of fixing blocks (1003) is inserted into the first magnet blocks (1001).

7. A wall-mounted speaker according to claim 6, characterized in that, The first magnet block (1001) is fixedly connected to a pair of insert blocks (1004) on the side near the fixing block (1003). Each pair of fixing blocks (1003) has a slot (1005) drilled on it, and the insert block (1004) is located in the slot (1005) and in close contact with it. Both the insert block (1004) and the slot (1005) are trapezoidal.