Power supply extension socket suitable for dust prevention

Abstract

The utility model relates to a power supply extension socket suitable for dust prevention. The power supply extension socket comprises a lower cover, an upper cover installed on the lower cover and a dust-proof assembly. The upper cover comprises an upper shell used for fixing, a main jack arranged in the upper shell, and a switch hole arranged in the upper shell at one side of the main jack; the lower cover comprises a lower shell, a copper sheet which is arranged on the lower shell, is opposite to the main jack and is used for connecting electricity, and a switch button which is arranged on the lower shell, is opposite to the switch hole and is used for controlling the on and off of a power supply of the copper sheet; the dustproof assembly comprises a sliding rail and a dustproof cover. The sliding rails are installed on the upper shell on the two sides of the main jack, and the dustproof cover is installed on the sliding rails in a sliding mode so as to cover or open the main jack; according to the dustproof extension socket, the main jacks are covered, so that dust is effectively prevented from entering, good contact between the plug and the jacks is always kept, and the service life of electrical equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of power strip technology, and in particular to a power strip suitable for dust protection. Background Technology

[0002] During food processing, such as flour processing and grain milling, a large amount of powdery particles are generated. These particles can easily float and disperse in the air. When power strips are used in such an environment, these powdery particles can easily enter the sockets.

[0003] Because the relative humidity in food processing environments can be high, these particles that enter the sockets may become conductive after absorbing moisture. If they come into contact with the copper contacts of different electrodes inside the socket, they can cause a short circuit. Moreover, food processing sites typically have many electrical devices in use simultaneously. The large current generated by a short circuit could damage operating food processing equipment, such as mixers and ovens, and could even cause a fire due to electrical sparks, endangering the safety of the entire food processing site. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a power strip suitable for dust protection.

[0005] The present invention adopts the following technical solution:

[0006] A dustproof power strip includes a lower cover, an upper cover mounted on the lower cover, and a dustproof assembly. The upper cover includes an upper shell for fixing, a main socket in the upper shell, and a switch hole in the upper shell on one side of the main socket. The lower cover includes a lower shell, a copper strip mounted on the lower shell opposite to the main socket for connecting to electricity, and a switch button mounted on the lower shell opposite to the switch hole for controlling the power supply of the copper strip. The dustproof assembly includes a slide rail and a dust cover. The slide rail is mounted on the upper shell on both sides of the main socket, and the dust cover is slidably mounted on the slide rail to cover or open the main socket.

[0007] Furthermore, there are four main sockets and four dustproof components, with each of the four dustproof components corresponding to one of the four main sockets.

[0008] Furthermore, there are four copper plates, each corresponding to one of the main sockets on the lower shell; there are four switch buttons, each corresponding to one of the four main sockets on the upper shell; each switch button is electrically connected to one of the copper plates in the corresponding main socket.

[0009] Furthermore, the dustproof power strip also includes an overload protection component installed inside the lower housing. The overload protection component includes an outer shell installed on the lower housing, a pin installed on one side of the outer shell and connected to the copper plate, and a reset button on the side opposite to the pin. The upper housing and the lower housing opposite to the reset button are provided with a reset hole, and the reset button extends from one side of the reset hole.

[0010] Furthermore, the dustproof power strip also includes an overload lamp mounted on the lower housing, with an overload hole provided on the upper housing opposite the overload lamp.

[0011] Furthermore, a light-shielding plate and connecting arms are provided on both sides of the light-shielding plate on the overload hole. One end of the connecting arm is connected to the upper cover, and the other end is connected to the light-shielding plate.

[0012] Furthermore, the dustproof power strip also includes a guide wall that extends downward from the main socket toward the lower housing to guide the insertion direction of the main plug.

[0013] Furthermore, the dustproof power strip also includes a female connector socket installed on the lower housing for female connector insertion, and a female connector hole is provided on the upper housing opposite the female connector socket.

[0014] Furthermore, the dustproof power strip also includes a male socket mounted on the lower shell for male plug insertion, with a male plug hole provided on the upper shell opposite the male socket.

[0015] Furthermore, the lower shell is provided with a through mounting hole, the mounting hole including a central hole in the middle and side holes on both sides of the central hole, the central hole being larger than the side holes on both sides; the central hole is connected to the side holes on both sides.

[0016] The beneficial effects of this utility model are as follows:

[0017] This utility model relates to a dustproof power strip. By covering the main socket, the dustproof power strip effectively prevents dust from entering, ensuring good contact between the plug and the socket and extending the service life of electrical equipment. The dust cover, in conjunction with a slide rail, allows for smooth sliding, making it easy for users to open and close. The dust cover also prevents liquid from entering the socket, improving the safety of the power strip in complex environments. Furthermore, the dustproof power strip maintains a relatively clean interior, reducing dust corrosion of components and preventing dust from affecting conductivity, accelerating the aging and wear of internal components, thus extending the overall service life of the power strip. Attached Figure Description

[0018] Figure 1 This is a perspective view of a dustproof power strip according to an embodiment of the present invention;

[0019] Figure 2 for Figure 1 Exploded view of a dustproof power strip;

[0020] Figure 3 for Figure 2 An exploded view of a dustproof power strip from another angle. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "vertical direction," "up," "down," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Please see Figures 1 to 3This utility model discloses a dustproof power strip according to one embodiment, comprising a lower cover 20, an upper cover 10 mounted on the lower cover 20, and a dustproof assembly 30. The upper cover 10 includes an upper shell 11 for fixing, a main socket 12 provided in the upper shell 11, and a switch hole 13 provided in the upper shell 11 on one side of the main socket 12. The lower cover 20 includes a lower shell 21, a copper plate mounted on the lower shell 21 opposite to the main socket 12 for connecting to electricity, and a switch button 26 mounted on the lower shell 21 opposite to the switch hole 13 for controlling the power supply of the copper plate. The dustproof assembly 30 includes a slide rail 31 and a dust cover 32. The slide rail 31 is mounted on the upper shell 11 on both sides of the main socket 12, and the dust cover 32 is slidably mounted on the slide rail 31 to cover or open the main socket 12. In this embodiment, the main socket 12 is a three-socket socket. In other embodiments, the main socket is a two-socket socket.

[0025] The working principle of this dustproof power strip is as follows: When it is necessary to use the power strip to power electrical equipment, firstly, insert the plug of the power strip into the power socket to connect the power strip to power; then, push the dust cover 32 to slide along the slide rail 31 to expose the main socket 12; next, press the switch button 26, which is located on the lower shell 21 and corresponds to the switch hole 13 on the upper shell 11; when the switch button 26 is pressed, it controls the copper plates (not shown in the figure) on the lower shell 21 to form a circuit between the copper plates, so that the current can be transmitted from the power input through the copper plates to the main socket 12; after the plug of the electrical equipment is inserted into the main socket 12, the current enters the electrical equipment through the plug, thereby providing power to the electrical equipment; At this time, the electrical equipment can work normally, and the power strip acts as an intermediary for power transfer. When the power strip is not in use, unplug the electrical equipment from the main socket 12. Then, push the dust cover 32 along the slide rail 31 towards the main socket 12 so that the dust cover 32 completely covers the main socket 12. In this way, it is difficult for external dust, hair and other debris to enter the main socket 12. Since the main socket 12 is protected by the dust cover 32, it can effectively prevent dust from accumulating in the socket. After covering the main socket 12, you can press the switch button 26 to cut off the circuit between the copper plates and stop the power supply to the power strip. This not only further ensures safety, but also avoids potential risks caused by accidental power supply when the power strip is not in use.

[0026] Compared to existing technologies, this utility model provides a dustproof power strip. By covering the main socket 12, the dustproof power strip effectively prevents dust from entering, ensuring good contact between the plug and the socket and extending the service life of electrical equipment. The dustproof cover 32, in conjunction with the slide rail 31, allows for smooth sliding, making it easy for users to open and close. If metallic dust enters the socket, it may cause a short circuit between different electrodes, generating a large current instantaneously. This could damage connected electrical equipment and potentially cause fires or other safety accidents. The dustproof power strip design reduces this risk, ensuring the safe operation of electrical equipment. This is especially important for families with children, as children may insert their fingers or other objects out of curiosity. Dust can easily enter the sockets of a power strip, potentially causing electric shock. The dust cover 32 can prevent children from directly contacting the sockets, protecting their safety and reducing the risk of accidental contact. In daily life, power strips may be placed near water sources, such as on a table near a water cup. If a water cup is accidentally knocked over, water splashing into the sockets can cause a short circuit, damaging electrical appliances or even posing a risk of electric shock. The dust cover 32 can prevent liquid from entering the sockets, improving the safety of the power strip in complex usage environments. Dust entering the power strip can affect conductivity and may also adhere to other parts, such as the switch button 26 and copper contacts, accelerating their aging and wear. The dustproof power strip keeps the interior relatively clean, reducing dust corrosion of parts and extending the overall lifespan of the power strip.

[0027] Please refer to Figure 1 and Figure 2There are four main sockets 12 and four dustproof components 30, with each of the four dustproof components 30 corresponding to one of the four main sockets 12. When the power strip is not in use, the four dustproof covers 32 are located in front of their respective main sockets 12, completely covering them. Since each dust cover 32 is mounted on the slide rails 31 on both sides of the main socket 12, they can slide along the slide rails 31. In the initial state, the position and shape of the dust cover 32 effectively prevent dust, fibers, and other foreign objects from entering the main socket 12. When one of the main sockets 12 needs to be used, the user manually slides the corresponding dust cover 32 to one side along the slide rail 31. Since the slide rail 31 guides the movement of the dust cover 32, the dust cover 32 can move smoothly, thereby exposing the main socket 12. This process is similar to opening a door, making it convenient for the user to accurately insert the plug into the main socket 12. Moreover, since each dustproof component 30 corresponds to only one main socket 12, the user can clearly operate the dust cover 32 of the main socket 12 that needs to be used. There will be no confusion or interference with other sockets. When the device is fully charged and the user unplugs it, the dust cover 32 that was just removed can be slid back along the slide rail 31 to return to its original position covering the main socket 12. In this way, the main socket 12 is protected again, and the dust cover 32 continues to perform its function of preventing dust from entering. When multiple devices need to be charged in turn or the power strip is used, the four main sockets 12 and the corresponding dustproof components 30 can work in an orderly manner. For example, in an office setting, it may be necessary to charge devices such as computers, mobile phones, and desk lamps in turn. Each time a main socket 12 is used, only the corresponding dust cover 32 needs to be moved. Other unused main sockets 12 remain in a dustproof state, ensuring that the entire power strip can always be effectively dustproof during frequent use.

[0028] There are four copper plates, each corresponding to one of the lower shells 21 of each main socket 12. There are also four switch buttons 26, each corresponding to one of the upper shells 11 on one side of each of the four main sockets 12. Each switch button 26 is electrically connected to the copper plate inside the corresponding main socket 12. When the power strip plug is inserted into an external power outlet, the internal circuitry of the power strip is connected to the external power supply, but the main sockets 12 are not yet energized. This is because although the copper plates corresponding to each main socket 12 are connected to the power line, the switch buttons 26 are needed to control whether the circuit is open. For the four main sockets 12, if multiple electrical devices need to be powered simultaneously, the corresponding dust cover 32 can be pushed and the corresponding switch button 26 pressed, just as with individual sockets, to create a circuit on the copper plates of each main socket 12, thus enabling simultaneous power supply to multiple electrical devices. The circuit of each main socket 12 is relatively independent, and each main socket is powered by its own... The power supply to a main socket 12 is controlled by the switch button 26, allowing for flexible selection of whether to turn the power on or off as needed. After the appliance is used and the plug is unplugged from the main socket 12, if you want to completely cut off the power to that main socket 12, press the corresponding switch button 26 again to make the switch button 26 pop up. This disconnects the copper circuit, preventing current from reaching the copper plate corresponding to that main socket 12, thus putting the main socket 12 in a de-energized state. In this way, each main socket 12 can be independently de-energized, and after all main sockets 12 are de-energized, the dust cover 32 can be pushed back to cover the main sockets 12, thus preventing dust accumulation.

[0029] The dustproof power strip also includes an overload protection component 40 installed inside the lower housing 21. The overload protection component 40 includes a housing 41 installed on the lower housing 21, pins 42 installed on one side of the housing 41 and connected to a copper plate, and a reset button 43 on the side opposite to the pins 42. The upper housing 11 and the lower housing 21 opposite to the reset button 43 are provided with a reset hole 44, and the reset button 43 extends from one side of the reset hole 44. When the power strip is working normally, current enters the power strip from the external power supply through the plug and then flows through the copper contacts. These contacts are connected to pins 42 of the overload protection device 40, and the current flows through pins 42 into the internal circuitry of the overload protection device 40. At this time, the overload protection device 40 monitors the current. If the total power of the electrical appliances connected to the main socket 12 of the power strip is too high, causing the current flowing through the copper contacts and pins 42 into the overload protection device 40 to exceed the set safety threshold, the overload protection device 40 will automatically cut off the circuit. This prevents damage to the power strip and connected electrical appliances due to excessive current, and avoids electrical fires and other safety incidents caused by overload. Therefore, when an overload protection event occurs and the power strip needs to be reused, a reset operation can be performed using the reset button 43. The reset button 43 is located on one side of the overload protection component 40 housing 41 inside the lower housing 21, opposite to the pin 42. Since the upper housing 11 and lower housing 21 opposite to the reset button 43 are provided with a reset hole 44, a part of the reset button 43 extends from one side of the reset hole 44, and the user can easily reach the reset button 43 through this extended part. After pressing the reset button 43, the protection mechanism inside the overload protection component 40 will be reset, and the current path will be re-established. This reset operation allows the power strip to be easily restored to normal use after overload protection.

[0030] The dustproof power strip also includes an overload lamp 50 mounted on the lower housing 21, with an overload hole opposite the upper housing 11. When the power strip is operating normally, i.e., without an overload, the overload lamp 50 is off; because the current flowing through the power strip is within a safe range, no overload protection mechanism is triggered, and therefore no signal is sent to the overload lamp 50 to illuminate. When the total power of the electrical devices connected to the main socket 12 of the power strip is too high, and the current exceeds the overload protection threshold set by the power strip, the overload protection device 40 inside the power strip (such as a thermomagnetic or electronic overload protector) will activate the protection mechanism; the overload lamp 50 will then illuminate. Because the upper housing 11 has an overload hole, the light can be seen by the user through this hole; thus, the overload lamp 50 serves as a clear warning, reminding the user... The power strip is currently experiencing an overload. Users can promptly identify the problem and take measures, such as unplugging some electrical appliances to reduce the load current and prevent potential electrical equipment damage or fires. Once the overload is resolved, for example by unplugging some electrical appliances to bring the current back to a safe range, or by pressing the reset button 43 of the overload protection device 40 (if it has this function) to restore the power strip to normal operation, the overload indicator 50 will turn off. Because the overload signal disappears at this time, the overload indicator 50 no longer receives the signal to light up and returns to its normal off state, waiting for the next possible overload situation to play a warning role again.

[0031] A light shield 15 and connecting arms 16 are provided on both sides of the light shield 15. One end of the connecting arm 16 is connected to the upper cover 10, and the other end is connected to the light shield 15. When the power strip is working normally and no overload occurs, the light shield 15, supported by the connecting arm 16, is positioned above the overload hole to block light. One end of the connecting arm 16 is connected to the top cover 10, providing a fixed support point for the light shield 15, allowing it to stably cover the overload hole. This prevents external light from interfering with the judgment of the overload lamp 50's status and also makes the power strip's appearance cleaner. When the power strip is overloaded, the overload lamp 50 lights up, and light shines upward from the overload lamp 50 on the lower shell 21. At this time, because the light has a certain intensity, it will propagate upward through the overload hole. Although the light shield 15 covers the overload hole, the light will illuminate the light shield 15, and the phenomenon of the light shield 15 illuminating can be observed from the outside, thus serving as an overload warning. This design allows users to clearly notice the abnormality during overload while maintaining the consistency of the power strip's appearance under normal conditions.

[0032] Please refer to Figure 3The dustproof power strip also includes a guide wall 17 extending downwards from the side of the main socket 12 facing the lower housing 21 to guide the insertion direction of the main plug. When a user prepares to insert an electrical appliance into the main socket 12, the guide wall 17 provides visual and physical guidance; this guidance is particularly important in dimly lit or concealed locations. Located on the side of the main socket 12 facing the lower housing 21 and extending downwards, the guide wall 17 contacts the plug first when it approaches the main socket 12. Because its shape and position are specifically designed to guide plug insertion, it guides the plug's pins to the correct insertion path. For example, for electrical appliances with different pin shapes (such as two-prong and three-prong plugs), the guide wall 17 helps distinguish which pin should be inserted. The guide wall 17 ensures that the plug is accurately aligned with the copper contacts in the main socket 12, preventing the plug from being misaligned or inserted into other positions, thus avoiding damage to the plug or power strip. The guide wall 17 effectively improves the accuracy of plug insertion into the main socket 12. In daily use, especially when the power strip is placed in an inconvenient location (such as against a wall or behind furniture) or when the user has poor eyesight, the guide wall 17 helps the user insert the plug into the main socket 12 more easily, reducing the need for repeated plugging and unplugging due to misalignment. This not only improves the user experience but also reduces wear and tear on the plug and main socket 12 caused by repeated plugging and unplugging, extending the lifespan of the power strip and plug.

[0033] Please refer to Figure 2 The dustproof power strip also includes a female socket 23 on the lower housing 21 for female plug insertion, and a female socket 18 on the upper housing 11 opposite the female socket 23. The presence of the female socket 23 allows the power strip to provide multiple functional interfaces on a single device; in addition to the traditional main socket 12 for powering general electrical equipment, the female socket 23 can be used for power supply or signal transmission of specific devices, such as data transmission and audio output; this integrates multiple functions into one power strip, reducing the hassle for users to find different interfaces for different functional devices and improving ease of use; without increasing the overall size of the power strip, the space resources of the power strip can be fully utilized by reasonably setting the female socket 23 and the female socket 18; compared with using multiple independent adapters or expansion devices, this built-in female socket 23 design is more compact, allowing the power strip to meet more functional needs without occupying too much desktop or socket space.

[0034] The dustproof power strip also includes a male socket 24 on the lower housing 21 for male plug insertion, with a male socket 19 on the upper housing 11 opposite the male socket 24. The male socket 24 can be used for various functions, not just power supply; besides providing power to devices, it can also perform data transmission, signal exchange, and other operations. For example, in a smart home system, the power strip can connect to smart devices via the male socket 24 with data transmission capabilities, enabling communication and control between devices. For instance, inserting the control male plug of a smart speaker into the power strip allows for convenient audio playback. The male socket 19 makes device connection more intuitive and convenient; users simply insert the male plug into the corresponding socket to connect the device to the power strip, eliminating the need for complex adapters. This improves connection and usage efficiency in scenarios requiring frequent device plugging and unplugging, such as offices and conference rooms, allowing users to quickly replace or add devices according to their needs.

[0035] Please refer to Figure 3 The lower shell 21 is provided with a through mounting hole 25. The mounting hole 25 includes a central hole 250 in the middle and side holes 251 on both sides of the central hole 250. The central hole 250 is larger than the side holes 251 on both sides. The central hole 250 is connected to the side holes 251 on both sides. The through-hole design 25 offers multiple installation possibilities; the larger central hole 250 than the side holes 251 allows the power strip to be installed in various ways depending on the installation scenario and fixing requirements. For example, when a larger bolt or hook needs to be passed through the central hole 250 to fix the power strip to a wall, desktop, or other device, the larger central hole 250 can meet this need; while if smaller fasteners are used, the side holes 251 can be used, improving the power strip's adaptability to different mounting accessories. Installation requirements may vary in different usage environments; for example, in a home environment, it may be desirable to mount the power strip on the wall, in which case the central hole 250 can be used to pass through suitable wall-mounting accessories; in an office environment, it may be necessary to fix the power strip to the side of a desk or computer host, and the smaller side holes 251 can be used to insert small screws or clips, etc., making it convenient for the power strip to be installed flexibly according to the actual environment and improving its applicability in various scenarios.

[0036] The above description merely illustrates the preferred technical solution of this utility model, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.

Claims

1. A power strip suitable for dust prevention, characterized in that, The device includes a lower cover, an upper cover mounted on the lower cover, and a dustproof assembly. The upper cover includes an upper shell for fixing, a main insertion hole in the upper shell, and a switch hole in the upper shell on one side of the main insertion hole. The lower cover includes a lower shell, a copper plate mounted on the lower shell opposite to the main insertion hole for connecting to electricity, and a switch button mounted on the lower shell opposite to the switch hole for controlling the power supply of the copper plate. The dustproof assembly includes a slide rail and a dustproof cover. The slide rail is mounted on the upper shell on both sides of the main insertion hole, and the dustproof cover is slidably mounted on the slide rail to cover or open the main insertion hole.

2. The power strip suitable for dust prevention according to claim 1, wherein, There are four main sockets and four dustproof components, with each of the four dustproof components corresponding to one of the four main sockets.

3. The power strip for dust prevention according to claim 2, wherein There are four copper plates, which are respectively disposed on the lower shell opposite each of the main sockets; there are four switch buttons, which are respectively disposed on the upper shell on one side of each of the four main sockets; each switch button is electrically connected to each of the copper plates in the corresponding main socket.

4. The power strip for dust prevention according to claim 1, wherein The dustproof power strip also includes an overload protection component installed inside the lower housing. The overload protection component includes an outer shell installed on the lower housing, pins installed on one side of the outer shell and connected to the copper plate, and a reset button on the side opposite to the pins. The upper housing and the lower housing opposite to the reset button are provided with reset holes, and the reset button extends from one side of the reset hole.

5. The power strip for dust prevention according to claim 4, wherein The dustproof power strip also includes an overload lamp mounted on the lower housing, and an overload hole is provided on the upper housing opposite to the overload lamp.

6. The power strip suitable for dust prevention according to claim 5, wherein, The overload hole is provided with a light shield and connecting arms on both sides of the light shield. One end of the connecting arm is connected to the upper cover and the other end is connected to the light shield.

7. The power strip for dust prevention according to claim 1, wherein The dustproof power strip also includes a guide wall that extends downward from the main socket toward the lower housing to guide the insertion direction of the main socket.

8. The power strip for dust prevention according to claim 1, wherein The dustproof power strip also includes a female connector socket installed on the lower housing for female connector insertion, and a female connector hole is provided on the upper housing opposite the female connector socket.

9. The power strip for dust prevention according to claim 1, wherein The dustproof power strip also includes a male socket installed on the lower shell for male plug insertion, and a male plug hole is provided on the upper shell opposite the male socket.

10. The power strip suitable for dust prevention according to claim 1, wherein, The lower shell is provided with a through mounting hole, which includes a central hole in the middle and side holes on both sides of the central hole. The central hole is larger than the side holes on both sides. The central hole is connected to the side holes on both sides.

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