Desktop safety power strip

Abstract

This invention provides a desktop safety power strip, relating to the field of power strip technology. The power strip includes a speaker base and a power strip body. The speaker base includes a top shell, a bottom shell, a middle frame, a speaker, and a resonant diaphragm. The middle frame and bottom shell form a sound cavity. The middle frame has mutually spaced first and second mounting holes. The speaker plug is installed in the first mounting hole; the resonant diaphragm plug is installed in the second mounting hole. The top shell also has a fixing groove. A retaining protrusion is integrally formed on the bottom of the power strip body. The inner wall of the fixing groove has a locking and limiting structure. The retaining protrusion is installed in the fixing groove and engages with the locking and limiting structure. Compared to existing technologies, this invention integrates the functions of the base and the speaker, improving the functionality of the base and significantly enhancing sound quality, achieving better low-frequency performance. It also improves the retaining and fixing effect of the power strip body, making the structure more stable and improving the user experience.

Description

Technical Field

[0001] This invention relates to the field of power strip technology, and more specifically, to a desktop safety power strip. Background Technology

[0002] Existing power strips mainly consist of a flame-retardant engineering plastic shell, multiple national standard combination sockets (two-pole and three-pole), a master mechanical rocker switch, a built-in safety shutter, and an integrated power cord. Their function is to provide 220V AC power to multiple electrical devices by expanding the power strip's interfaces through parallel circuits.

[0003] Furthermore, desktop power strips have appeared on the market. These power strips are mainly supported by a base, with the base of the conventional power strip itself serving only a structural support function and having a single function. Moreover, conventional desktop power strips typically have the power strip simply plugged into the base without any locking or limiting structure, resulting in poor tightness between the power strip and the base, making it easy for it to loosen or fall off, affecting the feel of plugging in. Summary of the Invention

[0004] The purpose of this invention is to provide a desktop safety power strip that integrates speaker functionality. The base not only provides structural support but also functions as a speaker, delivering high-quality sound. It also ensures a stable connection, improving stability and user experience.

[0005] In a first aspect, embodiments of the present invention provide a desktop safety power strip, comprising: A speaker base includes a top shell, a bottom shell, a middle frame, a speaker, and a resonant diaphragm. The middle frame is disposed on the bottom shell, and the top shell covers the middle frame and is connected to the bottom shell. The middle frame and the bottom shell enclose a sound cavity. The middle frame is provided with mutually spaced relief grooves, a first mounting hole, and a second mounting hole. The speaker is sealed and assembled in the first mounting hole and is at least partially accommodated in the sound cavity. The resonant diaphragm is sealed and assembled in the second mounting hole for vibration under the sound pressure of the sound cavity. The top shell is also provided with a fixing groove corresponding to the relief groove. The power strip body has a retaining protrusion at its bottom and a snap-fit ​​limiting structure on the inner wall of the fixing groove. The retaining protrusion is assembled in the fixing groove and snaps into the snap-fit ​​limiting structure. At least one side wall of the power strip body has multiple sockets.

[0006] In an optional embodiment, the snap-fit ​​limiting structure includes a plurality of first snap-fit ​​protrusions spaced apart along the same circumferential direction on the inner wall of the fixed groove, and a snap-fit ​​gap is formed between each two adjacent first snap-fit ​​protrusions. The side wall of the snap-fit ​​protrusion is provided with a plurality of second snap-fit ​​protrusions spaced apart along the same circumferential direction. The width of each second snap-fit ​​protrusion is smaller than the width of the snap-fit ​​gap, and the second snap-fit ​​protrusion is used to snap into the snap-fit ​​gap and abut against the first snap-fit ​​protrusion.

[0007] In an optional embodiment, the snap-fit ​​limiting structure further includes a plurality of stop protrusions, which are respectively disposed in the middle of the side of the plurality of first snap-fit ​​protrusions near the bottom shell. Each second snap-fit ​​protrusion has an avoidance notch in the middle, which is used to align and cooperate with the stop protrusions so that the stop protrusions circumferentially limit the second snap-fit ​​protrusions.

[0008] In an optional embodiment, the middle frame is further provided with a relief groove, which is correspondingly provided with the fixing groove. The bottom wall of the fixing groove is further provided with a positioning hole, and the bottom wall of the relief groove is provided with a positioning post. The positioning post is provided with a positioning screw hole, and a positioning component is assembled in the positioning hole. The positioning component is correspondingly assembled in the positioning screw hole so that the top shell and the middle frame are relatively fixed.

[0009] In an optional embodiment, the top shell has a plurality of sound holes distributed thereon, and the array of the plurality of sound holes is distributed on the top shell and surrounds the fixing groove.

[0010] In an optional embodiment, the speaker base further includes a battery and a circuit board. The battery is disposed in the receiving cavity and detachably connected to the bottom shell. The circuit board is disposed outside the receiving cavity and detachably connected to the bottom shell. The top shell covers the circuit board.

[0011] In an optional embodiment, the edge of the middle frame is provided with a clearance notch, the clearance notch is provided with a first baffle extending toward the bottom shell, and a second baffle is correspondingly provided on the bottom shell. The first baffle and the second baffle are spliced ​​together to separate the interior and exterior of the sound cavity. The circuit board is installed in the clearance notch and located outside the first baffle and the second baffle.

[0012] In an optional embodiment, the bottom shell is provided with a plurality of studs, each stud being provided with a screw hole, and the middle frame is provided with a plurality of mounting holes, each mounting hole being fitted with a connector, and the plurality of connectors being fitted into the plurality of screw holes.

[0013] In an optional embodiment, the top shell is further provided with a plurality of mounting posts on one side surface facing the middle frame, and the plurality of mounting posts are respectively interference-fitted into the plurality of mounting holes so that the top shell and the middle frame are interference-fitted.

[0014] In an optional embodiment, the speaker base further includes a counterweight, which is disposed at the center of the bottom wall accommodating the sound cavity and is detachably connected to the bottom shell.

[0015] The beneficial effects of the embodiments of the present invention include: The desktop safety power strip provided in this embodiment of the invention has a middle frame mounted on a bottom shell, with a top shell covering the middle frame, and the middle frame and bottom shell forming a sound cavity. The middle frame also has spaced-apart clearance grooves, a first mounting hole, and a second mounting hole. A speaker is sealed and assembled in the first mounting hole, and is at least partially housed in the sound cavity, functioning as a sound-generating unit and generating sound pressure within the sound cavity. A resonant diaphragm is sealed and assembled in the second mounting hole, vibrating under the sound pressure of the sound cavity to achieve resonance and improve sound quality, resulting in better low-frequency performance. A retaining protrusion is provided at the bottom of the power strip body, and a locking limiting structure is provided on the inner wall of the fixing groove. The retaining protrusion is assembled in the fixing groove and engages with the locking limiting structure, achieving a plug-in and fixed connection between the power strip body and the speaker base.

[0016] Compared to existing technologies, this invention features a fixing groove on the top shell for inserting the power strip body, and a speaker mounted on the middle frame. The middle frame and bottom shell together form a sound cavity, allowing the speaker base to integrate both base and speaker functions. This enhances the base's functionality, providing structural support while also functioning as a speaker. Furthermore, the sound cavity design and the use of a resonant diaphragm significantly improve sound quality, achieving better low-frequency response. Additionally, the locking and limiting structure and the locking protrusions ensure better securing of the power strip body, a tighter connection between the power strip body and the speaker base, resulting in a more stable structure and improved user experience. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a desktop safety power strip provided in an embodiment of the present invention; Figure 2This is a schematic diagram of the assembly of a desktop safety power strip from a first-view perspective, provided in an embodiment of the present invention. Figure 3 for Figure 2 A magnified view of a portion of point III; Figure 4 This is a schematic diagram of the assembly of a desktop safety power strip from a second perspective, provided in an embodiment of the present invention. Figure 5 for Figure 4 A magnified view of a portion of point V in the middle; Figure 6 A cross-sectional view of a desktop safety power strip provided in an embodiment of the present invention; Figure 7 for Figure 6 A magnified view of a portion of point VII in the middle; Figure 8 An exploded view of the speaker base provided in an embodiment of the present invention from a first perspective. Figure 9 This is an exploded structural diagram of the speaker base provided in an embodiment of the present invention from a second perspective.

[0019] Icons: 10 - Desktop safety power strip; 100 - Speaker base; 110 - Top shell; 111 - Fixing groove; 112 - Positioning hole; 113 - Speaker hole; 114 - Mounting post; 120 - Bottom shell; 121 - Accommodating cavity; 122 - Second baffle; 123 - Stud; 124 - Limiting post; 125 - Limiting rib; 130 - Middle frame; 131 - First mounting hole; 132 - Second mounting hole; 133 - Clearance groove; 134 - Positioning post; 135 - First... Baffle; 136-Mounting hole; 140-Speaker; 150-Resonant diaphragm; 160-Battery; 170-Circuit board; 180-Counterweight; 181-Positioning countersunk hole; 182-Pre-limiting hole; 200-Power strip body; 210-Holding protrusion; 211-Second holding protrusion; 212-Avoidance notch; 220-Holding limiting structure; 221-First holding protrusion; 222-Holding gap; 223-Stop edge; 224-Stop protrusion; 230-Socket. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element 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 invention.

[0024] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0025] As disclosed in the background section, existing desktop power strips mainly consist of a base and a power strip. The power strip is placed on the base for support, and the conventional power strip base only serves a structural support function with a single function.

[0026] Furthermore, existing technologies have also developed multi-functional bases or sockets, such as support bases that integrate speaker functionality. However, these support bases often simply integrate and mount the speaker onto the base without a separate acoustic chamber design. Additionally, due to base size limitations, the speaker diaphragm area is small, resulting in poor sound quality, particularly low-frequency performance, negatively impacting the user experience. This has hindered the widespread adoption of such multi-functional support bases in the market.

[0027] Furthermore, conventional desktop power strip bases, where the power strip needs to be inserted vertically, result in a high center of gravity for both the base and the power strip. This makes the power strip more prone to tipping over, leading to poor stability and impacting the user experience. Additionally, conventional desktop power strips typically simply plug into the base without any locking or restraining mechanisms, resulting in a weak connection and poor stability. This makes the power strip prone to loosening when plugging in, affecting the feel of the plug.

[0028] To address the aforementioned problems, embodiments of the present invention provide a novel desktop safety power strip. It should be noted that, without conflict, the features in the embodiments of the present invention can be combined with each other.

[0029] The desktop safety power strip provided in this invention integrates speaker functionality, allowing the base to function not only as a structural support but also as a speaker with good sound quality. It also ensures a stable connection, resulting in better stability and a superior user experience.

[0030] See Figure 1 , Figure 2 , Figure 4 and Figure 6 This invention provides a desktop safety power strip 10, including a speaker base 100 and a power strip body 200. The speaker base 100 includes a top shell 110, a bottom shell 120, a middle frame 130, a speaker 140, and a resonant diaphragm 150. The middle frame 130 is disposed on the bottom shell 120, and the top shell 110 covers the middle frame 130 and is connected to the bottom shell 120. The middle frame 130 and the bottom shell 120 form a sound cavity 121. The middle frame 130 is provided with a first mounting hole 131 and a second mounting hole 132 spaced apart from each other. The speaker 140 is sealed and assembled in the first mounting hole 131 and is at least partially accommodated in the sound cavity 121. The resonant diaphragm 150 is sealed and assembled in the second mounting hole 132 for vibration under the sound pressure of the sound cavity 121. The top shell 110 is also provided with a fixing groove 111. The bottom of the power strip body 200 is integrally provided with a retaining protrusion 210, and the inner wall of the fixing groove 111 is provided with a snap-fit ​​limiting structure 220. The retaining protrusion 210 is assembled in the fixing groove 111 and snaps into the snap-fit ​​limiting structure 220. At least one side wall of the power strip body 200 is provided with a plurality of socket holes 230.

[0031] It should be noted that, in this embodiment of the invention, the middle frame 130 and the bottom shell 120 enclose a sound cavity 121. The speaker 140 is sealed and installed in the first mounting hole 131, and is at least partially housed in the sound cavity 121, serving as a sound-generating unit and generating sound pressure within the sound cavity 121. The resonant diaphragm 150 is sealed and installed in the second mounting hole 132, and can vibrate under the sound pressure of the sound cavity 121, achieving resonance and improving sound quality, resulting in better low-frequency performance. This arrangement allows the speaker base 100 to integrate the functions of a base and a speaker, thus enabling the base to not only provide structural support but also function as a speaker, enhancing its functionality. Furthermore, the arrangement of the sound cavity 121 and the use of the resonant diaphragm 150 to generate resonance significantly improve sound quality, achieving better low-frequency performance. The bottom of the power strip body 200 is provided with a retaining protrusion 210, and the inner wall of the fixing groove 111 is provided with a locking and limiting structure 220. The retaining protrusion 210 is assembled in the fixing groove 111 and engages with the locking and limiting structure 220 to achieve plug-in fixation between the power strip body 200 and the speaker base 100. Through the locking and limiting between the locking and limiting structure 220 and the retaining protrusion 210, the retaining and fixing effect of the power strip body 200 is better, the connection between the power strip body 200 and the speaker base 100 is tighter, the structure is more stable, and the user experience is improved.

[0032] See Figures 2 to 7 In some embodiments, the locking and limiting structure 220 includes a plurality of first locking protrusions 221 spaced apart along the same circumferential direction on the inner wall of the fixing groove 111. A locking gap 222 is formed between each two adjacent first locking protrusions 221. The side wall of the locking protrusion 210 is provided with a plurality of second locking protrusions 211 spaced apart along the same circumferential direction. The width of each second locking protrusion 211 is smaller than the width of the locking gap 222, and the second locking protrusions 211 are used to engage with the first locking protrusions 221 along the locking gap 222 and abut against each other. Specifically, the fixing groove 111 has a circular groove structure, the locking protrusion 210 is cylindrical, the plurality of first locking protrusions 221 are spaced apart along the same circumferential direction on the top side of the inner wall of the fixing groove 111, and the plurality of second locking protrusions 211 are spaced apart along the same circumferential direction on the outer side wall of the locking protrusion 210. The second retaining protrusion 211 is used to engage with the first retaining protrusion 221 along the retaining gap 222.

[0033] In actual insertion, the retaining protrusion 210 can be aligned with the fixing groove 111 first, and the second retaining protrusion 211 can be aligned with the retaining gap 222 between the first retaining protrusion 221. Then, the power strip body 200 is pressed down, so that the second retaining protrusion 211 is inserted into the retaining gap 222. Then, the power strip body 200 is rotated, so that the second retaining protrusion 211 rotates to below the first retaining protrusion 221 and abuts against it, realizing rotational locking. Preferably, in this embodiment, there are two first retaining protrusions 221 and two retaining protrusions 211, and both the first retaining protrusions 221 and the second retaining protrusion 211 are arc-shaped, which can realize mutual rotational locking. After the rotating latch is engaged, the first latching protrusion 221 and the second latching protrusion 211 can abut against each other to limit the movement, thereby keeping the power strip body 200 and the speaker base 100 in a relatively fixed state. The connection between the power strip body 200 and the speaker base 100 is tighter, the structure is more stable, and the user experience is improved.

[0034] It should be noted that each first holding protrusion 221 is also provided with a stop edge 223 at one end. The stop edge 223 protrudes and is provided on the inner side wall of the fixing groove 111, which can limit the second holding protrusion 211 in the circumferential direction and ensure that the second holding protrusion 211 will not rotate further after being rotated and held in place.

[0035] Furthermore, the locking and limiting structure 220 also includes multiple stop protrusions 224, which are respectively disposed in the middle of the side of the multiple first locking protrusions 221 near the bottom shell 120. Each second locking protrusion 211 has a clearance notch 212 in the middle, which is used to align and cooperate with the stop protrusion 224 so that the stop protrusion 224 circumferentially limits the second locking protrusion 211. Specifically, there are also two stop protrusions 224, which are respectively disposed in the middle of the bottom side of the two first locking protrusions 221, and the protrusion height of the stop protrusion 224 is less than the protrusion height of the first locking protrusion 221. During the rotation locking process, the second locking protrusion 211 can undergo a certain degree of deformation, so that its rotating head can cross the stop protrusion 224 and the clearance notch 212 corresponds to the stop protrusion 224.

[0036] It is worth noting that, in order to avoid jamming, the stop protrusion 224 is also provided with guide ramps on both sides along the circumferential direction. These guide ramps can effectively guide the second holding protrusion 211 to cross the stop protrusion 224.

[0037] See Figure 6 and Figure 8In some embodiments, the middle frame 130 is further provided with a relief groove 133, which is correspondingly provided with a fixing groove. The bottom wall of the fixing groove 111 is also provided with a positioning hole 112, and the bottom wall of the relief groove 133 is provided with a positioning post 134. The positioning post 134 is provided with a positioning screw hole, and a positioning component (not shown) is assembled in the positioning hole 112. The positioning component is correspondingly assembled in the positioning screw hole so that the top shell 110 and the middle frame 130 are relatively fixed. Specifically, the relief groove 133 is located at the center of the middle frame 130 and is formed by a partial recess in the center of the middle frame 130. The fixing groove 111 is also formed by a partial recess in the center of the top shell 110, and the relief groove 133 can accommodate the recessed part in the center of the top shell 110. Meanwhile, the positioning component can be a screw, which is installed in the positioning hole 112 and threaded into the positioning screw hole, so that the bottom wall of the fixing groove 111 and the bottom wall of the relief groove 133 can be fixed by the screw, thereby fixing the top shell 110 and the middle frame 130 together.

[0038] It should be noted that the recessed groove 133 and the acoustic cavity 121 are isolated from each other to prevent the recessed groove from directly communicating with the acoustic cavity 121. The speaker 140 is sealed and assembled in the first mounting hole 131, and the resonant diaphragm 150 is sealed and assembled in the second mounting hole 132, which also ensures a certain degree of sealing of the acoustic cavity 121. In this embodiment, the second mounting hole 132 is oval, and the shape of the resonant diaphragm 150 is adapted to the shape of the second mounting hole 132.

[0039] In some embodiments, the resonant diaphragm 150 includes a diaphragm body and a suspension edge. The suspension edge is disposed at the edge of the diaphragm body, and the material of the diaphragm body is the same as that of the diaphragm of the speaker 140, such as polypropylene, metal composite material, paper-based composite material, fiber composite material, etc. The suspension edge can be a rubber edge, which can be fixed in the second mounting hole 136 by adhesive bonding to ensure a sealing effect.

[0040] Furthermore, the inner wall of the second mounting hole 132 is also provided with a mounting step, which protrudes toward the center of the second mounting hole 132, and the hanging edge can be fixed to the mounting step by adhesive.

[0041] In some embodiments, the power strip body 200 includes a socket module and a housing. The socket module is disposed within the housing and is correspondingly arranged with the socket 230, allowing an external plug to be inserted into the socket module through the socket 230 to achieve electrical connection. A retaining protrusion 210 is integrally disposed on the bottom of the housing and protrudes downwards. A power switch is also provided on the top of the housing, enabling the socket module to be powered on and off. A power cord is also provided on the side wall of the housing, which extends out and can be plugged into a wall socket. For details regarding the specific structure and electrical principles of the socket module, refer to existing desktop power strips.

[0042] In some embodiments, a plurality of speaker holes 113 are distributed on the top shell 110, and the plurality of speaker holes 113 are arrayed on the top shell 110 and surround the fixing groove 111. Specifically, the plurality of speaker holes 113 are arranged in a divergent circular array. By designing the speaker holes 113, the sound emitted by the speaker 140 and the resonant diaphragm 150 can be better transmitted to the external space, avoiding muffled sound that affects sound quality. Furthermore, the plurality of speaker holes 113 can surround the fixing groove 111, avoiding local openings and improving the overall aesthetic appearance.

[0043] In some embodiments, the speaker base 100 further includes a battery 160 and a circuit board 170. The battery 160 is disposed in the receiving cavity 121 and detachably connected to the bottom shell 120. The circuit board is disposed outside the receiving cavity 121 and detachably connected to the bottom shell 120. A top shell 110 covers the circuit board 170. Specifically, the battery 160 can be fixed to the bottom shell 120 by adhesive, while the circuit board can be locked to the bottom shell 120 by screws. Since the circuit board has various ports that need to be connected to external electrical structures, designing the circuit board outside the receiving cavity 121 can avoid the port slots on the circuit board affecting the airtightness of the receiving cavity 121 and ensure the resonance effect of the receiving cavity 121. At the same time, the top shell 110 covering the circuit board 170 can provide good protection for the circuit board 170.

[0044] In other preferred embodiments of the present invention, the battery 160 may also be interference-fitted onto the limiting structure of the bottom shell 120, and the circuit board may also be bonded and fixed onto the support of the bottom shell 120. The fixing method of the battery 160 and the circuit board is not specifically limited here.

[0045] In some embodiments, the edge of the middle frame 130 is provided with a clearance notch 212, and the clearance notch 212 is provided with a first baffle 135 extending toward the bottom shell 120. A second baffle 122 is correspondingly provided on the bottom shell 120. The first baffle 135 and the second baffle 122 are spliced ​​together to separate the interior and exterior of the sound cavity 121. The circuit board 170 is installed in the clearance notch 212 and located outside the first baffle 135 and the second baffle 122. Specifically, the first baffle 135 protrudes downward and the second baffle 122 protrudes upward. The first baffle 135 and the second baffle 122 are spliced ​​together, and the first baffle 135 and / or the second baffle 122 are also provided with wire holes for wires to pass through. The wires are interference-fitted into the wire holes to ensure that the wires pass through while achieving a seal. By setting the first baffle 135 and the second baffle 122, the mounting space of the circuit board 170 and the sound cavity 121 can be separated, ensuring that the circuit board 170 is located outside the sound cavity 121 and ensuring the airtightness of the sound cavity 121.

[0046] It is worth noting that in this embodiment, the bottom shell 120 is designed with an inner stop edge 223 and an outer stop edge 223. The edge of the middle frame 130 cooperates with the inner stop edge 223 to ensure that the edge of the middle frame 130 and the inner stop edge 223 are sealed and resisted, thereby forming a sound cavity 121. The edge of the top shell 110 cooperates with the outer stop edge 223 to ensure that the top shell 110 and the bottom shell 120 are spliced ​​together as a whole, ensuring the integrity of the appearance.

[0047] In some embodiments, the base shell 120 is provided with a plurality of studs 123, each stud 123 having a screw hole, and the middle frame 130 is provided with a plurality of mounting holes 136 correspondingly, each mounting hole 136 being fitted with a connector, and the plurality of connectors being fitted into the plurality of screw holes. Specifically, the connector is a screw, which is fitted into the mounting hole 136 and threaded into the screw hole, thus achieving a fixed connection between the middle frame 130 and the base. By designing the studs 123, sufficient screw hole depth can be ensured, thereby ensuring a fixed connection effect. In addition, there can be 6 studs 123, which are evenly distributed on the base shell 120, and the middle frame 130 is fixed to the base shell 120 by 6 screws.

[0048] See Figure 9 Furthermore, the top shell 110 has multiple mounting posts 114 on its surface facing the middle frame 130. These mounting posts 114 are respectively interference-fitted into multiple mounting holes 136 to ensure an interference fit between the top shell 110 and the middle frame 130. Specifically, the mounting posts 114 protrude from the inner surface of the top shell 110, and their positions correspond to the positions of the mounting holes 136. After the top shell 110 is installed, the mounting posts 114 extend into the mounting holes 136, ensuring the positioning of the top shell 110 and thus guaranteeing the edge alignment and splicing of the top shell 110 and the bottom shell 120. Simultaneously, the interference fit of the mounting posts 114 into the mounting holes 136 also secures the top shell 110 to the middle frame 130.

[0049] It should be noted that the mounting hole 136 here is a countersunk hole structure, and the side wall of the mounting post 114 is provided with assembly ribs. These assembly ribs can abut against the inner wall of the mounting hole 136 to ensure sufficient contact area, thereby ensuring the interference fit effect between the mounting post 114 and the mounting hole 136.

[0050] See Figure 6 , Figure 8 and Figure 9In some embodiments, the speaker base 100 further includes a counterweight 180, which is disposed at the center of the bottom wall accommodating the sound cavity 121 and is detachably connected to the bottom shell 120. Specifically, the counterweight 180 can be made of a high-density material, such as rigid plastic or a metal block covered with an insulating layer. The counterweight 180 is located at the center of the bottom shell 120, effectively lowering the center of gravity of the entire base, resulting in a relatively low center of gravity and better stability even after plugging in a power strip. The counterweight 180 can be glued to the center of the bottom shell 120 or detachably fixed to the center of the bottom shell 120 using screws.

[0051] In some embodiments, a fixing groove is formed by a partial central recess on the surface of the middle frame 130 away from the bottom shell 120, and an insertion protrusion is formed on the surface of the middle frame 130 near the bottom shell 120. The counterweight 180 corresponds to and is spaced apart from the insertion protrusion. Specifically, the spaced arrangement between the counterweight 180 and the insertion protrusion ensures that the counterweight 180 is spaced apart from the middle frame 130, thereby ensuring that the installation position of the counterweight 180 is low enough, further reducing the center of gravity and improving stability.

[0052] Furthermore, at least two limiting posts 124 are provided at the center of the bottom shell 120. Each limiting post 124 has multiple limiting ribs 125 surrounding its side wall. Each limiting rib 125 extends from the top end of the limiting post 124 to the bottom end, and a screw hole is formed at the top end of each limiting post 124. The counterweight 180 has a positioning countersunk hole 181 on its top side surface, in which a screw is fitted. The counterweight 180 has a pre-limiting hole 182 on its bottom side surface, the diameter of which is larger than the diameter of the positioning countersunk hole 181. The diameter of the pre-limiting hole 182 is adapted to the outer diameter of the limiting post 124 with the limiting rib 125. In actual assembly, the pre-limiting hole 182 and the limiting post 124 can be aligned and assembled first, and the counterweight 180 can be pre-fixed by the limiting post 124. Then, a screw is installed in the positioning countersunk hole 181. The screw can be assembled with the screw hole on the limiting post 124 to fix the counterweight 180.

[0053] In summary, the desktop safety power strip 10 provided in this embodiment of the invention has a middle frame 130 mounted on a bottom shell 120, and a top shell 110 covering the middle frame 130, with the middle frame 130 and the bottom shell 120 forming a sound cavity 121. The middle frame 130 is also provided with spaced-apart grooves 133, a first mounting hole 131, and a second mounting hole 132. A speaker 140 is sealed and assembled in the first mounting hole 131 and at least partially housed in the sound cavity 121, functioning as a sound-generating unit and generating sound pressure within the sound cavity 121. A resonant diaphragm 150 is sealed and assembled in the second mounting hole 132, vibrating under the sound pressure of the sound cavity 121 to achieve resonance and improve sound quality, resulting in better low-frequency performance. The bottom of the power strip body 200 is provided with a retaining protrusion 210, and the inner wall of the fixing groove 111 is provided with a snap-fit ​​limiting structure 220. The retaining protrusion 210 is assembled in the fixing groove 111 and snaps into the snap-fit ​​limiting structure 220 to realize the plug-in fixation between the power strip body 200 and the speaker base 100.

[0054] Compared to existing technologies, this embodiment of the invention features a fixing groove 111 in the top shell 110 for inserting the power strip body 200, and a speaker 140 mounted on the middle frame 130. The middle frame 130 and the bottom shell 120 together form a sound cavity 121, allowing the speaker base 100 to integrate both base and speaker functions. This enhances the base's functionality, providing structural support while also functioning as a speaker. Furthermore, the sound cavity 121 and the resonance generated by the resonant diaphragm 150 significantly improve sound quality, achieving better low-frequency response. Simultaneously, the locking and limiting structure 220 and the locking protrusion 210 provide better locking and fixing of the power strip body 200, resulting in a tighter connection between the power strip body 200 and the speaker base 100, a more stable structure, and improved usability.

[0055] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention 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 the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A desktop safety power strip, characterized in that, include: A speaker base (100) includes a top shell (110), a bottom shell (120), a middle frame (130), a speaker (140), and a resonant diaphragm (150). The middle frame (130) is disposed on the bottom shell (120), and the top shell (110) covers the middle frame (130) and is connected to the bottom shell (120). The middle frame (130) and the bottom shell (120) together form a sound cavity (121). The top shell (110) is provided with a first mounting hole (131) and a second mounting hole (132) spaced apart from each other. The loudspeaker (140) is sealed and assembled in the first mounting hole (131) and is at least partially accommodated in the accommodating sound cavity (121). The resonant diaphragm (150) is sealed and assembled in the second mounting hole (132) for vibrating under the sound pressure of the accommodating sound cavity (121). The top shell (110) is also provided with a fixing groove (111). The power strip body (200) has a retaining protrusion (210) at its bottom and a snap-fit ​​limiting structure (220) on the inner wall of the fixing groove (111). The retaining protrusion (210) is assembled in the fixing groove (111) and snaps into the snap-fit ​​limiting structure (220). At least one side wall of the power strip body (200) is provided with a plurality of socket holes (230).

2. The desktop safety power strip according to claim 1, characterized in that, The snap-fit ​​limiting structure (220) includes a plurality of first snap-fit ​​protrusions (221) spaced apart along the same circumferential direction on the inner wall of the fixed groove (111). A snap-fit ​​gap (222) is formed between each two adjacent first snap-fit ​​protrusions (221). The side wall of the snap-fit ​​protrusion (210) is provided with a plurality of second snap-fit ​​protrusions (211) spaced apart along the same circumferential direction. The width of each second snap-fit ​​protrusion (211) is smaller than the width of the snap-fit ​​gap (222), and the second snap-fit ​​protrusion (211) is used to snap into the snap-fit ​​gap (222) and abut against the first snap-fit ​​protrusion (221).

3. The desktop safety power strip according to claim 2, characterized in that, The snap-fit ​​limiting structure (220) further includes a plurality of stop protrusions (224), which are respectively disposed in the middle of the side of the plurality of first snap-fit ​​protrusions (221) near the bottom shell (120). Each second snap-fit ​​protrusion (211) has a clearance notch (212) in the middle, which is used to align and cooperate with the stop protrusion (224) so ​​that the stop protrusion (224) can circumferentially limit the second snap-fit ​​protrusion (211).

4. The desktop safety power strip according to claim 1, characterized in that, The middle frame (130) is also provided with a relief groove (133), which is corresponding to the fixing groove. The bottom wall of the fixing groove (111) is also provided with a positioning hole (112), and the bottom wall of the relief groove (133) is provided with a positioning post (134). The positioning post (134) is provided with a positioning screw hole. A positioning component is installed in the positioning hole (112), and the positioning component is correspondingly installed in the positioning screw hole so that the top shell (110) and the middle frame (130) are relatively fixed.

5. The desktop safety power strip according to claim 1, characterized in that, The top shell (110) has a plurality of sound holes (113) distributed on it. The plurality of sound holes (113) are arranged in an array on the top shell (110) and surround the fixing groove (111).

6. The desktop safety power strip according to claim 1, characterized in that, The speaker base (100) also includes a battery (160) and a circuit board (170). The battery (160) is disposed in the receiving cavity (121) and is detachably connected to the bottom shell (120). The circuit board is disposed outside the receiving cavity (121) and is detachably connected to the bottom shell (120). The top shell (110) covers the circuit board (170).

7. The desktop safety power strip according to claim 6, characterized in that, The edge of the middle frame (130) is provided with a clearance notch (212), and the clearance notch (212) is provided with a first baffle (135) extending toward the bottom shell (120). The bottom shell (120) is provided with a corresponding second baffle (122). The first baffle (135) and the second baffle (122) are spliced ​​together to separate the interior and exterior of the sound cavity (121). The circuit board (170) is installed in the clearance notch (212) and located outside the first baffle (135) and the second baffle (122).

8. The desktop safety power strip according to claim 1, characterized in that, The bottom shell (120) is provided with a plurality of studs (123), each stud (123) is provided with a screw hole, and the middle frame (130) is provided with a plurality of mounting holes (136), each mounting hole (136) is equipped with a connector, and the plurality of connectors are respectively assembled into the plurality of screw holes.

9. The desktop safety power strip according to claim 8, characterized in that, The top shell (110) is provided with a plurality of mounting posts (114) on the side surface facing the middle frame (130). The plurality of mounting posts (114) are respectively interference-fitted into the plurality of mounting holes (136) so that the top shell (110) and the middle frame (130) are interference-fitted.

10. The desktop safety power strip according to any one of claims 1-9, characterized in that, The speaker base (100) also includes a counterweight (180), which is disposed at the center of the bottom wall of the sound cavity (121) and is detachably connected to the bottom shell (120).

Images