Multifunctional portable sound box

Abstract

The utility model provides a multifunctional portable sound box, which comprises a shell with openings at the front part and the top part, the opening end at the front part of the shell is connected with a front cover, the opening end at the upper part of the shell is connected with a top plate, the rear side of the top plate is provided with a concave clearance groove, and the upper end of the clearance groove is connected with a handle; the front side of the top plate is detachably connected with a microphone support, the microphone support comprises a fixing base, a U-shaped clamping groove used for clamping a microphone is integrally formed in the upper end of the fixing base, a containing groove is formed in the top plate, the fixing base is assembled in the containing groove, and the U-shaped clamping groove is used for clamping the microphone. The upper end face of the fixed base is flush with the upper end face of the top plate. According to the multifunctional portable sound box disclosed by the utility model, the storage function of the microphone can be realized under the condition that the volume of the sound box shell is not increased, and the attractive appearance of the sound box is not influenced.

Description

Technical Field

[0001] This utility model relates to the field of speaker technology, and more specifically, to a multifunctional portable speaker. Background Technology

[0002] A speaker is a device that converts electrical signals back into sound signals, and the fidelity of the sound reproduction is an important standard for evaluating speaker performance. An active speaker is an audio system with a built-in power amplifier (i.e., amplifier), integrating the power amplifier and the speaker sound-producing system into one unit. It can be directly paired with common audio sources (such as portable music players, CD players, DVD players, VCRs, etc.) to form a complete audio system.

[0003] Existing portable speakers typically include a housing, a speaker unit, a control unit, and a power supply unit. The control unit is usually integrated into the control panel, which is connected to the rear wall of the housing. The speaker unit is installed inside the housing cavity. To further enhance the speaker's versatility, a microphone is usually included, and a storage compartment is provided in the housing specifically for storing the microphone. However, with the control of manufacturing costs and new user demands for smaller size, portability, and lightweight design, it has become difficult to carve out a dedicated space for microphone storage within the speaker housing. Therefore, a new structure needs to be designed for microphone storage.

[0004] On the other hand, to improve application scenarios, especially when outdoor use is inconvenient due to limited power supply, speakers typically have built-in batteries to solve the power problem. Most existing outdoor speakers use built-in rechargeable batteries, which are generally non-removable or difficult to remove. Therefore, when the speaker runs out of power, it needs to be moved indoors to a power outlet for charging, limiting its usage time. Summary of the Invention

[0005] To overcome at least one of the defects in the prior art, this utility model provides a multifunctional portable speaker that can store a microphone without increasing the size of the speaker housing, and without affecting the speaker's aesthetic appearance.

[0006] This utility model provides a multifunctional portable speaker: a shell with openings at the front and top, a front cover connected to the front opening of the shell, a top plate connected to the upper opening of the shell, a recessed clearance groove provided on the rear side of the top plate, and a handle connected to the upper end of the clearance groove; a microphone bracket detachably connected to the front side of the top plate, the microphone bracket including a fixed base, a U-shaped slot for holding a microphone integrally formed on the upper end of the fixed base, a receiving groove provided on the top plate, the fixed base fitting into the receiving groove, and the upper end surface of the fixed base being flush with the upper end surface of the top plate.

[0007] Compared with the prior art, the multifunctional portable speaker of this utility model has the following advantages:

[0008] In the speaker structure of this utility model, a corresponding inner groove and a handle are provided on the top plate of the shell for easy hand-carrying and portability of the speaker; in addition, a microphone stand is provided on the top plate for placing and storing the microphone, and the microphone stand includes a fixed base, the upper end of which is formed with a U-shaped slot for mounting the microphone, and a recessed receiving groove is provided on the top plate. The fixed base is fitted and stored in the receiving groove, with only the U-shaped slot exposed, so as to minimize the volume occupied while realizing the microphone storage function.

[0009] As an improvement, the bottom of the receiving groove is provided with a plug-in hole, and the lower end of the fixing base is formed with a plug-in post. In the above improved structure, the fixing base is inserted and fitted into the bottom of the receiving groove, which is simple in structure and easy to assemble and disassemble.

[0010] In a further improvement, the front cover includes a mounting bracket and a decorative panel. The front sidewall of the mounting bracket is recessed to form a mounting groove. The lower end of the bottom wall of the mounting groove has a clearance through hole for the outer end of the woofer to pass through. The upper end of the bottom wall of the mounting groove extends rearward to form a horn body. Multiple connecting screws distributed circumferentially on the bottom wall of the mounting groove are used to connect the mounting bracket to the housing. A first positioning insertion hole is provided on the lower sidewall of the mounting groove. A first positioning insertion block that is inserted into the first positioning insertion hole is provided at the lower end of the decorative panel. The upper end of the decorative panel is bent rearward to form a positioning pressure plate. A mounting base plate is connected to the upper front side of the top plate. The front end of the mounting base plate is press-fitted to the upper end face of the positioning pressure plate. A receiving groove is formed on the mounting base plate, and a connecting screw for connecting to the housing is provided on the bottom wall of the receiving groove.

[0011] In a further improvement, the receiving groove is an elongated structure extending along the left-right direction of the speaker, and a pressure strip with a matching shape is installed inside the receiving groove. The pressure strip has two clearance holes, and the two insertion posts at the lower end of the fixing base pass through the two clearance holes and are respectively fitted into the corresponding insertion holes. In the above improved structure, the pressure strip allows for the concealment of fasteners while shortening the fixing base, improving aesthetics.

[0012] In a further improvement, the front side of the top plate is provided with a recessed fixing cavity, and the rear side wall of the fixing cavity is provided with multiple snap-fit ​​seats. Multiple snap-fit ​​buckles are formed on the lower surface of the rear end of the mounting base plate, which engage with each snap-fit ​​seat. The receiving groove is formed at the front end of the mounting base plate. In the above improved structure, the snap-fit ​​seats and snap-fit ​​buckle structures increase the convenience and stability of connecting the mounting base plate; only one end needs to be snapped in, and the other end can be fixed with connecting screws.

[0013] In a further improvement, positioning blocks are formed protruding on both sides of the mounting groove, and each positioning block is provided with a second positioning hole. Both sides of the decorative panel are formed with second positioning blocks for insertion and positioning with each of the second positioning holes respectively.

[0014] In a further improvement, the rear end of the bottom plate of the housing is inclined upward to form a slanted support plate. An installation channel is provided on the slanted support plate. A fixing frame is detachably connected in the installation channel. A battery pack for powering the sound unit inside the housing is detachably inserted in the fixing frame. A cover plate is detachably connected to the outer end of the installation channel on the slanted support plate.

[0015] In a further improvement, a third positioning hole is provided on one side wall of the installation channel opening, a third positioning block is provided at one end of the cover plate to be inserted into the third positioning hole, and a countersunk through hole is provided on the side wall of the other end of the cover plate. A hand-tightening screw connected to the inclined support plate passes through the countersunk through hole, and the outer end face of the hand-tightening screw is lower than the outer side wall of the cover plate.

[0016] Other improvements and advantages of this invention will be set forth in the detailed description that follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures particularly pointed out in the description and drawings. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the multifunctional portable speaker of this utility model;

[0018] Figure 2 This is an exploded view of the microphone bracket and top plate connection structure in this utility model;

[0019] Figure 3 This is a schematic diagram of the mounting base plate in this utility model;

[0020] Figure 4 This is an exploded structural diagram of the multifunctional portable speaker of this utility model;

[0021] Figure 5 for Figure 4 Another angle diagram of the explosion structure;

[0022] Figure 6 This is an exploded view of the connection structure between the cover plate and the inclined support plate in this utility model;

[0023] Figure 7 This is an exploded view of the connection structure between the cover plate and the inclined support plate in this utility model from another angle;

[0024] Figure 8 This is an exploded view of the connection structure between the battery pack, the fixing frame, and the housing in this utility model.

[0025] Figure 9 This is a structural diagram of the shell in this utility model;

[0026] Figure 10 This is a structural diagram of the shell in this utility model from another angle.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Housing; 2. Top plate; 3. Handle; 4. Fixed base; 5. U-shaped slot; 6. Receiving groove; 7. Insertion hole; 8. Insertion post; 9. Mounting bracket; 10. Decorative panel; 11. Mounting groove; 12. Clearance through hole; 13. Horn body; 14. First positioning insertion hole; 15. First positioning insertion block; 16. Positioning pressure plate; 17. Mounting base plate; 18. Pressure strip; 19. Connecting hole; 20. Clearance cavity; 21. Snap-fit ​​seat; 22. Snap-fit ​​buckle; 23. Second positioning insertion hole 24. Second positioning insert; 25. Inclined support plate; 26. Fixing frame; 27. Battery pack; 28. Cover plate; 29. ​​Third positioning insert hole; 30. Third positioning insert; 31. Countersunk through hole; 32. Hand screw; 33. Mounting step; 34. Battery compartment; 35. Mounting skirt; 36. First connecting screw; 37. Positioning hook; 38. Positioning rib; 39. Connecting hole; 40. First connecting post; 41. Mounting cavity; 42. Second connecting post; 43. Fixing base plate. Detailed Implementation

[0029] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0030] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0031] In the embodiments of this application, unless otherwise expressly specified and limited, the first feature at the "upper end" or "lower end" of the second feature may be in direct contact with the first feature, or indirect contact between the first and second features through an intermediate medium.

[0032] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0033] See Figures 1-10 As shown in the figure, this application discloses a multifunctional portable speaker, including a housing 1, which is generally made of plastic and processed by one-piece injection molding. A sound-generating unit is disposed inside the housing 1. In this embodiment, the housing 1 has openings at the top and on both the front and rear sides. The opening at the top is mainly used to install the sound-generating unit inside the housing 1, and after the internal components of the housing 1 are installed, a corresponding top plate 2 is installed at the top opening. Similarly, a front panel is installed at the front opening of the housing 1, and corresponding mesh holes (not shown in the figure) are opened on the front panel to facilitate sound transmission. A control panel is installed at the rear opening of the housing 1. The control panel is electrically connected to the sound-generating unit, and the user can control the sound through the operation buttons on the control panel, such as adjusting the volume and switching between high and low frequencies.

[0034] In this implementation, see Appendix Figures 6-9 The bottom plate of the housing 1 is inclined upwards at its rear end to form a sloping support plate 25. The sloping support plate 25 and the bottom plate of the housing 1 are integrally structured, which facilitates processing and ensures structural strength. Specifically, a mounting channel is provided on the sloping support plate 25, and a fixing frame 26 is detachably connected within the mounting channel. A battery pack 27 is inserted into the fixing frame 26, and the battery pack 27 is electrically connected to the sound unit and control panel, supplying them with power. Furthermore, a cover plate 28 is detachably connected to the outer end of the mounting channel on the sloping support plate 25. The cover plate 28 protects the battery pack 27 and ensures the outer surface of the sloping support plate 25 is flat, making the speaker stable and reliable when placed upright.

[0035] Another important aspect of this structure is that the battery pack 27 is installed at the corresponding position on the speaker's inclined support plate 25. When the speaker is used upright, the battery pack 27 acts as a counterweight, improving the speaker's stability during use. Furthermore, the battery pack 27 in this structure is an independent unit that can be removed and replaced. When the battery is low, simply open the cover 28 to replace the battery pack 27 and continue using the speaker, effectively extending its lifespan.

[0036] In the above structure, a recessed mounting step 33 is provided on the inclined support plate 25 and located on the outer periphery of the mounting channel. The fixing frame 26 includes a battery compartment 34 for positioning the battery pack 27 and a mounting skirt 35 formed on the outer periphery of the opening end of the battery compartment 34. A first connecting screw 36 for connecting the fixing frame 26 to the inclined support plate 25 is provided on the mounting skirt 35. The shape of the mounting skirt 35 matches the outer periphery of the mounting step 33 to ensure the stability of the connection structure. In addition, an opening is usually provided at the bottom of the battery compartment 34. When the battery pack 27 is inserted into the battery compartment 34, the power supply connector of the battery pack 27 can pass through the corresponding opening and be energized by the corresponding module insertion on the inner wall of the housing 1.

[0037] In addition, in this embodiment, to further ensure the connection strength between the fixed frame 26 and the inclined support plate 25, the outer periphery of the mounting skirt 35 is formed with elastically deformable positioning hooks 37. When the mounting skirt 35 is installed on the mounting step 33, each positioning hook abuts against the back of the mounting step 33. For details, please refer to the appendix. Figure 9 Two spaced-apart first hooks are formed on one outer wall of the mounting skirt 35 in the width direction, and two second hooks are formed on the other outer wall of the mounting skirt 35 in the width direction. The two first hooks are vertical. A short inwardly inclined extension plate is provided at one end (lower end) of the mounting skirt 35 near the base plate 3. The two second hooks are formed on the lower end surface of the extension plate. That is, the two second hooks have a certain angle with the front side wall of the mounting skirt. Therefore, during installation, the upper end of the mounting skirt 35 is first fitted close to the installation channel, and it is ensured that... Two first hooks hook onto the rear side wall of the upper end of the mounting skirt; then the lower end of the mounting skirt is pushed towards the mounting step 33. When the two inclined second hooks touch the edge of the mounting channel near the bottom plate 3, they are deformed by force until the mounting skirt is fully installed. Then the two second hooks move to the rear side of the mounting step 33 and abut against the rear wall of the mounting step 33, achieving the initial positioning of the fixing frame 26. Then, the first connecting screws 36 are screwed into the four corners of the mounting skirt to ensure the stable connection between the fixing frame 26 and the inclined support plate 25.

[0038] In this embodiment, a number of positioning ribs 38 are provided on the inner wall of the battery compartment 34 to support and position the battery pack 27, ensuring that the battery pack 27 can be stably positioned after insertion and will not shake during use.

[0039] In addition, in this implementation, please continue to refer to the appendix. Figures 6-9The detachable connection between the cover plate 28 and the inclined support plate 25 specifically refers to the following: a third positioning hole 29 is provided between one end of the mounting skirt plate 35 along its length and the inner wall of the mounting channel; a connecting hole 39 is provided at the other end of the mounting skirt plate 35 along its length; a third positioning block 30 is provided at one end of the cover plate 28 to be inserted into the third positioning hole 29; and a countersunk through hole 31 is provided at the other end of the cover plate 28, through which a second connecting screw passes, and the second connecting screw is connected to the connecting hole 39. During installation, first, the third positioning block 30 at one end of the cover plate 28 is inserted horizontally into the corresponding third positioning hole 29; then, the cover plate 28 is pushed from the outside inwards to completely cover the end of the mounting channel; finally, the second connecting screw is tightened to fix the cover plate 28. In this structure, preferably, the second connecting screw is a hand-tightening screw 32, and more preferably a C-ring hand-tightening screw. The C-ring of the C-ring hand-tightening screw can be housed in the large-diameter hole of the countersunk through hole 31. When operation is required, the C-ring can be turned out. As the second connecting screw, the C-ring hand-tightening screw allows users to quickly and manually open the cover 28 to replace the battery pack 27 without the need for screwdrivers or other tools, which is very convenient. In this structure, when the mounting skirt is installed on the mounting step 33, there is a recessed step between its outer end face and the outer surface of the inclined support plate 25. This step is mainly used to accommodate the cover 28. That is, after the cover 28 is installed, its outer surface is completely flush with the outer surface of the inclined support plate 25, ensuring the stability of the speaker when placed upright.

[0040] Additionally, in this embodiment, see Appendix Figure 2 A recessed groove is provided on the rear side of the top plate 2, and a handle 3 is connected to the upper end of the recessed groove. A microphone bracket is detachably connected to the front side of the top plate 2. The microphone bracket includes a fixed base 4, and a U-shaped slot 5 for holding the microphone is integrally formed on the upper end of the fixed base 4. A receiving groove 6 is provided on the top plate 2, and the fixed base 4 is fitted into the receiving groove 6, with the upper end surface of the fixed base 4 flush with the upper end surface of the top plate 2. More specifically, a plug hole 7 is provided at the bottom of the receiving groove 6, and a plug post 8 is formed at the lower end of the fixed base 4. The fixed base 4 is connected and fixed to the top plate 2 by fitting the plug post 8 with the plug hole 7.

[0041] See appendix Figure 2 and 3 A recessed cavity 20 is provided on the front side of the top plate 2. Multiple snap-fit ​​seats 21 are provided on the rear side wall of the cavity 20. Multiple snap-fit ​​buckles 22 that are snapped with each snap-fit ​​seat 21 are formed on the lower surface of the rear end of the mounting base plate 17. The receiving groove 6 is formed at the front end of the mounting base plate 17.

[0042] See appendix for further details. Figure 2Two insertion holes 7 are formed on the bottom wall of the receiving groove 6, and two insertion posts 8 are formed at the lower end of the fixing base 4. The two insertion posts 8 are respectively inserted into the two insertion holes 7. A pressure strip 18 with a matching shape is installed in the receiving groove 6. The pressure strip 18 has two connecting holes 19. The two insertion posts 8 pass through the two connecting holes 19 and are respectively fitted into the corresponding insertion holes 7. In this structure, in order to improve the connection strength between the mounting base 17 and the housing 1, the receiving groove 6 is an elongated structure with multiple connecting screws connected to its bottom. However, the conventional fixing base 4 is relatively short and not long enough to completely cover all the connecting screws. If the fixing base 4 is to completely cover the connecting screws, the overall volume of the fixing base 4 needs to be increased, increasing the cost. In this structure, the fasteners connecting the mounting base 17 and the housing 1 are hidden by only a thin pressure strip 18.

[0043] On the other hand, participating in the attached Figure 4 , 5 In this embodiment, the sound unit includes a bass section and a tweeter section. A bass speaker is connected to the lower end of the inner cavity of the housing 1, and a tweeter is connected to the upper end. A front cover is connected to the front opening of the housing 1. The front cover includes a mounting bracket 9 and a decorative panel 10. The front side wall of the mounting bracket 9 is recessed to form a mounting groove 11. The lower end of the bottom wall of the mounting groove 11 has a clearance through hole 19 for the outer end of the bass speaker to pass through. The upper end of the bottom wall of the mounting groove 11 extends rearward to form a horn body 13. The rear end of the horn body 13 corresponds to the tweeter. A plurality of circumferentially distributed connecting screws are provided on the bottom wall of the mounting groove 11 for connecting the mounting bracket 9 to the housing 1. The lower side wall of the mounting groove 11 is provided with a first positioning hole 14. The lower end of the decorative panel 10 is provided with a first positioning block 15 that is inserted and fitted into the first positioning hole 14. The upper end of the decorative panel 10 is bent backward to form a positioning pressure plate 16. A mounting base plate 17 is connected to the upper front side of the top plate 2. The front end of the mounting base plate 17 is press-fitted onto the upper end face of the positioning pressure plate 16. The receiving groove 6 is formed on the mounting base plate 17, and a connecting screw for connecting with the housing 1 is provided on the bottom wall of the receiving groove 6.

[0044] In this structure, the front cover is divided into two parts: the mounting bracket 9 and the decorative panel 10. The mounting bracket 9 is fixed to the housing 1 by connecting screws. The decorative panel 10 is connected to the mounting bracket 9 by a snap-fit ​​structure, which does not require any fasteners. Moreover, after the decorative panel 10 is connected, it blocks the connecting screws of the mounting bracket 9, thus hiding the fasteners and improving the aesthetics of the speaker.

[0045] In this embodiment, in order to further increase the stability of the fitting between the decorative panel 10 and the mounting bracket 9, inwardly extending positioning blocks are formed on both sides of the mounting groove 11, and each positioning block is provided with an outward-facing second positioning insertion hole 23. Multiple second positioning inserts 24 are formed on both sides of the decorative panel 10 to fit into each second positioning insertion hole 23.

[0046] In this embodiment, because the sidewall of the housing 1 is very thin, it is difficult to provide connecting posts for fixing with connecting screws. Furthermore, the position of the connecting screws on the mounting bracket 9 is close to the inner cavity of the housing 1 and offset from its sidewall. In this structure, multiple first connecting posts 40 are formed on the rear sidewall of the housing 1. Multiple circumferentially distributed mounting cavities 41 are recessed on the bottom wall of the mounting groove 11. When the mounting bracket 9 is fitted to the opening of the housing 1, the rear sidewall of each mounting cavity 41 abuts against the front end face of each first connecting post 40, and a connecting screw for connecting to the corresponding first connecting post 40 passes through the bottom wall of each mounting cavity 41.

[0047] In the above structure, since the upper part of the mounting bracket 9 needs to be shaped into a corner body 13, there is not enough space to form the mounting cavity 41. Therefore, a backward-sloping surface is provided at the upper end of the mounting bracket 9, and multiple connecting screws are inserted through the slope. The connecting screws here are directly connected and fixed to the front end face of the top plate 2 of the housing 1. Of course, the connecting screws here are also blocked by the bent part at the upper end of the decorative panel 10.

[0048] Additionally, in this embodiment, see Appendix Figure 5 and 10 In the connection structure between the top plate 2 and the housing 1: the lower end face of the top plate 2 is provided with a plurality of second connecting posts 42 distributed circumferentially, and the top of the inner wall of the housing 1 is provided with a fixed base plate 43 extending inward. Multiple connecting screws extending from bottom to top are passed through the fixed base plate 43, and the upper end of each connecting screw is connected to the corresponding second connecting post 42, so as to realize the detachable connection between the top plate 2 and the housing 1. Furthermore, the connecting fasteners are located inside the housing 1 and are not visible from the outside, thus improving the overall aesthetic appearance of the speaker.

[0049] In the description of the embodiments of this application, it should be noted that the terms "upper" and "lower" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0050] In the description of this application, the references to terms such as "this embodiment," "some embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0051] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A multi-functional portable speaker, characterized by: The utility model provides a shell (1) including front part and top opening, the front opening end of shell (1) is connected with the front cover, the upper opening end of shell (1) is connected with the top board (2), the rear side of top board (2) is provided with the inner recess, the upper end of inner recess is connected with the handle (3), the front side of top board (2) is detachably connected with the microphone support, the microphone support includes fixed base (4), the upper end of fixed base (4) is integrally formed with the U type clamping groove (5) for clamping microphone, top board (2) is provided with the accommodation groove (6), fixed base (4) is fitted in accommodation groove (6), and the upper end surface of fixed base (4) is flush with the upper end surface of top board (2).

2. The multi-functional portable speaker of claim 1, wherein: The bottom of the accommodation groove (6) is provided with a plug hole (7), and the lower end of the fixed base (4) is formed with a plug column (8).

3. The multi-functional portable speaker of claim 2, wherein: The front cover includes a mounting bracket (9) and a decorative panel (10), the front side wall of the mounting bracket (9) is recessed backward to form a mounting recess (11), the bottom wall of the mounting recess (11) is provided with an avoidance through hole (12) for the outer end of a bass speaker to pass through, the upper end of the bottom wall of the mounting recess (11) extends backward to form a horn body (13), a plurality of connecting screws are arranged on the bottom wall of the mounting recess (11) and are used to connect the mounting bracket (9) to the shell (1), a first positioning plug hole (14) is arranged on the lower side wall of the mounting recess (11), the lower end of the decorative panel (10) is provided with a first positioning plug block (15) which is plugged and fitted with the first positioning plug hole (14), the upper end of the decorative panel (10) is bent backward to form a positioning pressing plate (16), an installation bottom plate (17) is connected to the front upper end of the top plate (2), the front end of the installation bottom plate (17) is press-fitted on the upper end surface of the positioning pressing plate (16), the accommodation groove (6) is formed on the installation bottom plate (17), and the bottom wall of the accommodation groove (6) is provided with connecting screws which are used to connect the shell (1).

4. The multi-functional portable speaker of claim 3, wherein: The accommodation groove (6) is an elongated structure extending in the left-right direction of the sound box, and a pressing strip (18) with a matching shape is fitted in the accommodation groove (6), two avoidance through holes (12) are arranged on the pressing strip (18), and the two plug columns (8) at the lower end of the fixed base (4) are respectively fitted into the corresponding plug holes (7) through the two avoidance through holes (12).

5. The multi-functional portable speaker of claim 3, wherein: The front side of the top plate (2) is provided with an inner recessed avoidance cavity (20), a plurality of clamping seats (21) are arranged on the rear side wall of the avoidance cavity (20), a plurality of clamping buckles (22) are formed on the lower bottom surface of the rear end of the installation bottom plate (17) and are buckled with the clamping seats (21), and the accommodation groove (6) is formed on the front end of the installation bottom plate (17).

6. The multi-functional portable speaker of claim 3, wherein: The two side walls of the mounting recess (11) are outwardly protruding and formed with positioning blocks, a second positioning plug hole (23) is arranged on each positioning block, and a second positioning plug block (24) is formed on each side of the decorative panel (10) and is used to be plugged and positioned with the second positioning plug hole (23).

7. The multi-functional portable speaker of any one of claims 1 to 6, wherein: The bottom plate rear end of the shell (1) is inclined upward to form an inclined support plate (25), an installation channel is formed in the inclined support plate (25), a fixed frame (26) is detachably connected in the installation channel, a battery pack (27) for supplying power to a sound unit in the shell (1) is detachably inserted and assembled in the fixed frame (26), and a cover plate (28) is detachably connected to the outer end of the installation channel of the inclined support plate (25).

8. The multi-functional portable speaker of claim 7, wherein: A third positioning insertion hole (29) is arranged on one side wall of the opening end of the installation channel, one end of the cover plate (28) is provided with a third positioning insertion block (30) which is inserted and assembled with the third positioning insertion hole (29), a countersunk through hole (31) is formed in the side wall of the other end of the cover plate (28), a hand screw (32) connected to the inclined support plate (25) is arranged in the countersunk through hole (31), and the outer end surface of the hand screw (32) is lower than the outer side wall of the cover plate (28).

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