Construction site sound box

Abstract

The utility model discloses a construction site sound box, which comprises a loudspeaking assembly, a first shell, a second shell and a power connection plug arranged on a second mounting window. Wherein the second shell is provided with a second installation window used for being connected with the electric tool battery pack and a fixing piece, the second installation window can contain the top of the electric tool installation pack, and the fixing piece can be connected with the top of the electric tool battery pack in a buckled mode so that the electric tool battery pack can be fixed to the second shell. Meanwhile, the power connection plug of the second mounting window can be connected with a socket of an electric tool battery pack in an inserted mode to achieve electric connection, the loudspeaking assembly can adapt to voltage input by the electric tool battery pack, receive external audio signals and convert the external audio signals into audio signals to be output, and the problem that workers use loudspeaker box equipment in a construction site inconveniently to use electricity is solved.

Description

Technical Field

[0001] This utility model relates to a construction site speaker, belonging to the field of audio technology. Background Technology

[0002] An audio system is a set of electrical equipment that converts electrical signals into sound signals to produce sound. An audio system typically includes amplifiers, loudspeakers, mixing consoles, microphones, effects processors, and other equipment. On construction sites, each project team is equipped with speaker systems. The purpose of providing speakers on construction sites is to broadcast safety warnings, coordinate work, provide entertainment and relaxation, improve work efficiency, and conduct site announcements. These loudspeakers play a vital role on construction sites, helping to ensure worker safety, improve work efficiency, and provide entertainment and relaxation.

[0003] The current common practice is to use conventional loudspeakers, with power supplied to the construction site speakers via a generator line, which presents difficulties in providing power to the speaker equipment. Existing construction site power tools are equipped with replaceable power tool battery packs, which are usually multiple and pre-charged before construction. These packs are only compatible with electricians' tools, and audio equipment cannot be effectively connected to them. Therefore, there is an urgent need for a construction site speaker that can be compatible with these power tool battery packs. Utility Model Content

[0004] To address the shortcomings of the existing technology, the present invention aims to provide a construction site speaker, wherein the second housing is provided with a second mounting window and a fixing member for connecting a power tool battery pack. The second mounting window can accommodate the top of the power tool battery pack, and the fixing member can be snapped into the top of the power tool battery pack so that the power tool battery pack can be fixed to the second housing. At the same time, the power plug of the second mounting window can be plugged into the socket of the power tool battery pack to achieve electrical connection. The speaker assembly can adapt to the voltage input of the power tool battery pack and receive external audio signals and convert them into audio output, solving the problem of inconvenient power supply for workers using speaker equipment on construction sites.

[0005] To achieve the above objectives, this utility model provides a construction site speaker, comprising:

[0006] A speaker assembly capable of receiving external audio signals and converting them into audio output;

[0007] A first housing, the first housing including a first mounting window disposed on the main body of the first housing, the speaker assembly being disposed inside the first mounting window;

[0008] A second housing is detachably connected to the first housing and can cover the window of the first mounting window. The second housing includes a second mounting window disposed on the main body of the second housing and a fastener disposed on the second mounting window. The second mounting window can accommodate the top of the power tool mounting bag, and the fastener can be snapped to the top of the power tool battery pack.

[0009] A power connector is provided on the second mounting window, one end of which can extend into the first mounting window and be electrically connected to the speaker assembly; when the power tool battery pack is installed in the second housing, the power connector is plugged into the socket of the power tool battery pack, and the speaker assembly can adapt to the voltage input of the power tool battery pack.

[0010] Furthermore, as a more preferred embodiment of this utility model, the fixing members are respectively provided on both sides of the interior of the second mounting window; the second mounting window and the fixing members are integrally formed, or the fixing members are detachably connected to both sides of the interior of the second mounting window; and the surface of the fixing members is flush with the surface of the second housing.

[0011] Furthermore, as a more preferred embodiment of the present invention, one side of the second mounting window penetrates the second housing to form a guide slot for sliding insertion of a power tool. The fixing member includes a locking protrusion extending from the middle of the side wall of the second mounting window. A locking space is formed between the locking protrusion and the bottom of the second mounting window. The guide slot can guide the top of the power tool battery pack to slide in, and the outer edge protrusion of the top of the power tool pack can be inserted into the locking space, so that the power tool pack can be detachably fixed to the second housing.

[0012] Furthermore, as a more preferred embodiment of the present invention, the fixing member further includes a travel limiting part disposed on one side of the locking protrusion. When the power plug is inserted into the socket of the power tool battery pack, the travel limiting part can resist the power tool battery pack from sliding further into the second mounting window.

[0013] Furthermore, as a more preferred embodiment of the present invention, the fixing member includes a pressing protrusion disposed inside the slot protrusion, the end face of the pressing protrusion and the end face of the slot protrusion are connected by an arc, the pressing protrusion can narrow the slot space so that the outer edge of the power tool bag abuts against the slot space.

[0014] Furthermore, as a more preferred embodiment of this utility model, the speaker assembly includes at least one speaker unit and a mounting cover. The mounting cover is provided with a horn slot that matches the at least one speaker unit. The at least one speaker unit is detachably connected to the mounting cover, and the position of the at least one speaker unit corresponds to the position of the horn slot. A sound outlet window is provided on the surface of the first housing. The mounting cover is detachably connected to the interior of the first mounting window, and the position of the horn slot corresponds to the position of the sound outlet window.

[0015] Furthermore, as a more preferred embodiment of this utility model, the speaker assembly includes a control circuit board, a Bluetooth module disposed on the control circuit board, a data cable interface electrically connected to the control circuit board, and a power adapter module electrically connected to the control circuit board. The Bluetooth module can interact with external mobile devices and transmit audio signals; the data cable interface can be connected to an external device cable so that the external device can transmit audio signals to the control circuit board; the power adapter module can adapt to the voltage of the power tool battery pack to power the at least one speaker unit; the control circuit board is detachably disposed on the mounting cover.

[0016] Furthermore, as a more preferred embodiment of this utility model, the speaker assembly includes at least one button section and at least one user input switch disposed on the control circuit board; the first housing is provided with a button window adapted to the at least one button section, and the bottom two outer edges of the at least one button section are provided with protrusions, the protrusions being able to engage with the inner walls of the button window; when the mounting cover is detachably connected to the first housing, the mounting cover can press the protrusions against the inner walls of the button window, and the positions of the at least one button section and the at least one user input switch correspond to each other.

[0017] Furthermore, as a more preferred embodiment of the present invention, the second housing includes a guide plane extending outward from the guide socket, and the end of the guide socket is provided with a chamfered portion, the corner of the chamfered portion being rounded.

[0018] Furthermore, as a more preferred embodiment of this utility model, the speaker assembly receives external audio signals including one or more combinations of USB interface signals, microphone input signals, radio signals, or digital audio signals.

[0019] A construction site speaker includes a second housing with a second mounting window and a fastener for connecting a power tool battery pack. The second mounting window can accommodate the top of the power tool battery pack, and the fastener can be snapped onto the top of the power tool battery pack to secure it to the second housing. Simultaneously, the power connector of the second mounting window can be plugged into the socket of the power tool battery pack for electrical connection. The speaker assembly can adapt to the input voltage of the power tool battery pack and receive external audio signals, converting them into audio output, thus solving the problem of inconvenient power supply for workers using speaker equipment on construction sites. Attached Figure Description

[0020] Figure 1 This is a schematic diagram showing the structure of the construction site speaker in the embodiment.

[0021] Figure 2 This is another schematic diagram showing the structure of the construction site speaker in the embodiment.

[0022] Figure 3 This is a schematic diagram of a half-section of the construction site speaker in the embodiment.

[0023] Figure 4 This is a schematic diagram of the construction site speaker in the embodiment.

[0024] Figure 5 This is another schematic diagram of the construction site speaker structure in the embodiment.

[0025] Figure label:

[0026] 1-Speaker assembly, 11-Speaker unit, 12-Mounting cover, 121-Speaker slot, 13-Control circuit board, 14-Data cable interface, 15-Button section, 151-Protrusion, 16-User input switch, 17-Button window, 18-Socket, 2-First housing, 21-First mounting window, 22-Sound output window, 23-Filter, 3-Second housing, 31-Second mounting window, 311-Guide socket, 32-Fixing component, 321-Locking protrusion, 322-Locking space, 323-Travel limit section, 324-Firming protrusion, 33-Guide plane, 34-Chamfered section, 4-Power connector, 41-Positive power connector, 42-Negative power connector. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0029] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0031] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0032] Example

[0033] This embodiment aims to facilitate a solution to the problem of difficulty in connecting power to speaker equipment used by workers on construction sites, a problem present in existing technologies. (Refer to...) Figure 1-5 As shown, this embodiment provides a construction site speaker, wherein the second housing 3 is provided with a second mounting window 31 and a fixing member 32 for connecting a power tool battery pack. The second mounting window 31 can accommodate the top of the power tool battery pack, and the fixing member 32 can be snapped to the top of the power tool battery pack so that the power tool battery pack can be fixed on the second housing 3. At the same time, the power plug 4 of the second mounting window 31 can be plugged into the socket of the power tool battery pack to realize electrical connection. The speaker assembly 1 can adapt to the voltage input of the power tool battery pack and receive external audio signals and convert them into audio output, solving the problem of inconvenient power supply for workers using speaker equipment on construction sites.

[0034] Reference Figure 1-5 As shown, a construction site speaker includes: a speaker assembly 1, a first housing 2, a second housing 3, and a power connector 4 disposed on a second mounting window 31. The speaker assembly 1 receives external audio signals and converts them into audio output. The first housing 2 includes a first mounting window 21 disposed on the main body of the first housing 2, and the speaker assembly 1 is disposed inside the first mounting window 21. The second housing 3 is detachably connected to the first housing 2 and can cover the window of the first mounting window 21. It should be noted that after the first housing 2 and the second housing 3 are connected, a sealed space is formed inside the construction site speaker. The purpose of this is threefold: first, to protect the electronic components and speaker assembly 1 located inside the first housing 2 from damage caused by the external environment; for example, the first housing 2 can prevent dust, moisture, etc., from entering from the front, thereby extending the service life of the equipment; second, to improve the sound quality of the speaker assembly 1; and third, to enhance the overall aesthetics.

[0035] The second housing 3 includes a second mounting window 31 disposed on the main body of the second housing 3 and a fixing member 32 disposed on the second mounting window 31. The second mounting window 31 can accommodate the top of the power tool mounting bag, and the fixing member 32 can be snapped together with the top of the power tool battery pack. It should be noted that in the industry, battery packs and power tools are generally mechanically locked together using sliding male and female slots and snap-button structures to secure the battery pack. Therefore, in this embodiment, the second mounting window 31 is adapted to the outer contour of the top of the power tool battery pack, and the fixing member 32 is adapted to the snap-on end of the battery pack, forming an effective snap-on connection that secures the battery pack to the second housing 3.

[0036] One end of the power connector 4 extends through the second mounting window 31 into the first mounting window 21 and is electrically connected to the speaker assembly 1. When the power tool battery pack is installed in the second housing 3, the power connector 4 is plugged into the socket of the power tool battery pack, and the speaker assembly 1 can adapt to the voltage input of the power tool battery pack. For example, the power connector 4 includes a positive terminal plug 41 and a negative terminal plug 42 that are adapted to the socket of the power tool battery pack. The positive terminal plug 41 and the negative terminal plug 42 can be inserted into the positive and negative sockets of the battery pack respectively to form an electrical connection. The power tool battery pack is typically equipped with an adapter that can output a voltage adapted to the speaker assembly 1 to meet power supply requirements. In some embodiments, the speaker assembly 1 may also contain a power adapter to regulate the output voltage and ensure that the speaker assembly 1 can operate normally.

[0037] Reference Figure 1-3As shown, fasteners 32 are respectively provided on both sides of the interior of the second mounting window 31; the second mounting window 31 and the fasteners 32 are integrally formed, and the surface of the fasteners 32 is flush with the surface of the second housing 3. In some embodiments, the fasteners 32 are detachably connected to both sides of the interior of the second mounting window 31; and the surface of the fasteners 32 is flush with the surface of the second housing 3. The purpose of this flush connection is to ensure that the fasteners 32 do not interfere with the sliding of the battery pack.

[0038] Reference Figure 1-3 As shown, in some embodiments, one side of the second mounting window 31 extends through the second housing 3 to form a guide slot 311 for sliding insertion of a power tool. The fixing member 32 includes a locking protrusion 321 extending from the middle of the side wall of the second mounting window 31. A locking space 322 is formed between the locking protrusion 321 and the bottom of the second mounting window 31. The guide slot 311 can guide the top of the power tool battery pack to slide in, and the outer edge protrusion of the top of the power tool pack can be inserted into the locking space 322, so that the power tool pack can be detachably fixed to the second housing 3. In some embodiments, the fixing member 32 also includes a travel limiting part 323 disposed on one side of the locking protrusion 321. When the power plug 4 is inserted into the socket of the power tool battery pack, the travel limiting part 323 can abut against the power tool battery pack to slide further into the second mounting window 31.

[0039] Reference Figure 1-3 As shown, the fastener 32 includes a pressing protrusion 324 disposed inside the locking protrusion 321. The end face of the pressing protrusion 324 and the end face of the locking protrusion 321 are connected by an arc. The pressing protrusion 324 can narrow the locking space 322 so that the outer edge of the power tool bag is pressed against the locking space 322.

[0040] Reference Figure 1-3 As shown, the speaker assembly 1 includes at least one speaker unit 11 and a mounting cover 12. The mounting cover 12 is provided with a horn slot 121 that matches the at least one speaker unit 11. The at least one speaker unit 11 is detachably connected to the mounting cover 12, and the position of the at least one speaker unit 11 corresponds to the position of the horn slot 121. The surface of the first housing 2 is provided with a sound outlet window 22. The mounting cover 12 is detachably connected to the interior of the first mounting window 21, and the position of the horn slot 121 corresponds to the position of the sound outlet window 22. In some embodiments, a filter screen 23 is provided on the inner surface of the sound outlet window 22. The filter screen 23 can prevent foreign objects from contacting the speaker unit 11 and affecting its normal vibration and sound production. For example, the speaker unit 11 can be an existing horn or an electrodynamic speaker, which generates sound by driving a vibrating cone (voice coil) by electromagnetic force.

[0041] Reference Figure 1-3As shown, the speaker assembly 1 includes a control circuit board 13, a Bluetooth module disposed on the control circuit board 13, a data cable interface 14 electrically connected to the control circuit board 13, and a power adapter module electrically connected to the control circuit board 13. The Bluetooth module can interact with external mobile devices and transmit audio signals; the data cable interface 14 can connect to an external device cable so that the external device can transmit audio signals to the control circuit board 13; the power adapter module can adapt to the voltage of the power tool battery pack to power at least one speaker unit 11; the control circuit board 13 is detachably disposed on the mounting cover 12. The first housing 2 is provided with a socket 18 adapted to the data cable interface 14. For example, the Bluetooth module needs to establish a wireless connection with an audio source device (such as a mobile phone, tablet, or laptop). Users typically need to turn on the Bluetooth function on the audio source device and search for nearby Bluetooth devices. When the Bluetooth speaker is in a discoverable and connectable state, the audio source device will display its name for selection. After successful pairing, the devices will authenticate and encrypt to ensure a secure connection. Once the Bluetooth module connection is established, the audio source device will send digital audio signals to the speaker assembly 1 through the Bluetooth module. These digital signals can be transmitted via various protocols, such as A2DP (Advanced Audio Distribution Protocol) or AVRCP (Audio / Video Remote Control Profile). A2DP is primarily used for transmitting high-quality audio data, while AVRCP is used for controlling playback, pause, and skip operations. After receiving the digital audio signals, the speaker assembly 1 uses a built-in decoding chip on the control circuit board 13 to decode these signals into analog audio signals. The decoding process supports various audio formats, such as MP3, WAV, and FLAC. The decoded analog signals are then processed by the audio processing unit of the control circuit board 13, including audio amplification, equalization, and filtering to ensure high fidelity and low distortion. The processed analog audio signals are finally transmitted to the power amplifier module inside the speaker unit 11. The power amplifier module further amplifies the signal to drive the speaker unit 11 to play music. For example, the data cable interface 14 includes a USB interface for connecting to a computer or other USB devices for data transfer and charging. It supports connection to a computer via USB Type-C or Micro USB. A 3.5mm audio interface is also included for connecting wired headphones, mobile phones, tablets, and other devices. Type-C port: Used for connecting external power banks and data transfer. Micro USB port: Used for charging and data transfer. OTG (On-The-Go) port: Used to connect other USB devices, such as USB flash drives, via the USB interface.

[0042] Reference Figure 1-3As shown, the speaker assembly 1 includes at least one button portion 15 and at least one user input switch 16 disposed on the control circuit board 13. The first housing 2 is provided with a button window 17 adapted to the at least one button portion 15. The bottom two outer edges of the at least one button portion 15 are provided with protrusions 151, which can be engaged with the inner walls of the button window 17. When the mounting cover 12 is detachably connected to the first housing 2, the mounting cover 12 can press the protrusions against the inner walls of the button window 17, and the positions of the at least one button portion 15 and the at least one user input switch 16 correspond to each other. For example, the user input switch 16 includes volume adjustment, play / pause, power switch, pairing mode switching, etc. Each user input switch 16 corresponds to one button portion 15, and the surface of the button portion 15 is provided with a function logo and the surface is soft.

[0043] Reference Figure 1-3 As shown, the second housing 3 includes a guide plane 33 extending outward from the guide socket 311. The end of the guide socket 311 is provided with a chamfered portion 34, and the corners of the chamfered portion 34 are rounded. In some embodiments, the guide plane 33 is flush with the bottom surface of the guide socket 311. The user can first place the battery pack on the guide plane 33, aligning the buckle end of the battery pack with the fixing part, allowing for easier and more accurate insertion of the battery pack into the guide socket 311. The chamfered portion 34 allows the top protrusion of the battery pack to first align with and be positioned in the second mounting window 31, then slide along the outer surface of the second mounting window 31 to the chamfered portion 34. The chamfered portion 34 then guides the battery pack onto the guide plane 33, resulting in more precise insertion.

[0044] In some embodiments, the speaker assembly 1 receives external audio signals, including one or more combinations of USB interface signals, microphone input signals, radio signals, or digital audio signals. The radio signal can be from a wireless broadcasting device connected to a construction site loudspeaker, playing broadcast audio aloud. The speaker assembly 1 can accept microphone input signals and convert them into audio signals for external playback. The microphone, as an input device, is responsible for capturing ambient sound and converting it into electrical signals, which are then processed and output as sound by the speaker.

[0045] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A construction site sound box, characterized by, The utility model relates to a portable electric tool battery pack with loudspeaker function, which comprises the following parts: a loudspeaker assembly capable of receiving external audio signals and converting them into audio output; a first housing comprising a first mounting window arranged on the main body of the first housing, the inside of the first mounting window being provided with the loudspeaker assembly; a second housing detachably connected with the first housing, the second housing being capable of covering the window of the first mounting window; the second housing comprises a second mounting window arranged on the main body of the second housing and a fixing member arranged on the second mounting window, the second mounting window being capable of accommodating the top of the electric tool mounting package, and the fixing member being capable of being snap-connected with the top of the electric tool battery package; an electricity connection plug arranged on the second mounting window, one end of the electricity connection plug being capable of extending into the first mounting window and being electrically connected with the loudspeaker assembly; when the second housing is mounted with the electric tool battery package, the electricity connection plug is plugged into the socket of the electric tool battery package, and the loudspeaker assembly is capable of adapting to the voltage input by the electric tool battery package.

2. The construction site sound system of claim 1, wherein, The inside of the second mounting window is provided with the fixing member on both sides respectively; the second mounting window and the fixing member are integrally formed, or the inside of the second mounting window is detachably connected with the fixing member on both sides respectively; and the surface of the fixing member is flush with the surface of the second housing.

3. The construction site sound system of claim 2, wherein, One side of the second mounting window penetrates through the second housing to form a guide socket for the sliding insertion of the electric tool, the fixing member comprises a clamping protruding part extending from the middle of the side wall of the second mounting window, a clamping space is formed between the clamping protruding part and the bottom of the second mounting window, the guide socket is capable of guiding the sliding into the top of the electric tool battery package, and the outer edge protrusion of the top of the electric tool package can be inserted into the clamping space, so that the electric tool package can be detachably fixed on the second housing.

4. The construction site sound system of claim 3, wherein, The fixing member further comprises a stroke limiting part arranged on one side of the clamping protruding part, when the electricity connection plug is inserted into the socket of the electric tool battery package, the stroke limiting part can resist the further sliding of the electric tool battery package into the second mounting window.

5. The construction site sound system of claim 3, wherein, The fixing member comprises a clamping protruding part arranged on the inside of the clamping protruding part, the end face of the clamping protruding part and the end face of the clamping protruding part adopt a circular arc transition, and the clamping protruding part can narrow the clamping space, so that the outer edge protrusion of the electric tool package is clamped on the clamping space.

6. The construction site sound system of claim 1, wherein, The loudspeaker assembly comprises at least one loudspeaker unit and a mounting shell cover, the mounting shell cover is provided with a loudspeaker slot corresponding to the at least one loudspeaker unit, the at least one loudspeaker unit is detachably connected with the mounting shell cover, and the position of the at least one loudspeaker unit corresponds to the position of the loudspeaker slot; the surface of the first housing is provided with a sound outlet window; the mounting shell cover is detachably connected with the inside of the first mounting window, and the position of the loudspeaker slot corresponds to the position of the sound outlet window.

7. The construction site sound system of claim 6, wherein, The loudspeaker assembly comprises a control circuit board, a Bluetooth module arranged on the control circuit board, a data line interface electrically connected with the control circuit board, and a power supply adaptation module electrically connected with the control circuit board, the Bluetooth module can interact with an external mobile device to transmit an audio signal, the data line interface can be connected with an external device to transmit an audio signal to the control circuit board, the power supply adaptation module can adapt the voltage of an electric tool battery pack to work with the at least one loudspeaker unit, and the control circuit board is detachably arranged on the mounting shell cover.

8. The construction site sound system of claim 7, wherein, The loudspeaker assembly comprises at least one key part and at least one user input switch arranged on the control circuit board, the first shell is provided with a key window matched with the at least one key part, the bottom of the at least one key part is provided with a protrusion on both sides, the protrusion can be clamped on both sides of the inner wall of the key window, when the mounting shell cover is detachably connected with the first shell, the mounting shell cover can press the protrusion on both sides of the inner wall of the key window, and the position of the at least one key part corresponds to the position of the at least one user input switch.

9. The construction site sound system of claim 3, wherein, The second shell comprises a guide plane extending to the outside of the guide socket, and the end of the guide socket is provided with a chamfered part, and the corner of the chamfered part is transitioned by a circular arc.

10. The construction site sound system of claim 1, wherein, The loudspeaker assembly receives external audio signals, which include one or more combinations of USB interface signals, microphone input signals, radio signals, or digital audio signals.

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