A combination of a replacement plug and an adapter plug

CN224669191UActive Publication Date: 2026-08-21SHENZHEN YONGJIAXING ELECTRIC CO LTD
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Patent Information

Application Number
CN202522108867.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-30
Publication Date
2026-08-21
Estimated Expiration
2035-09-30

AI Technical Summary

Technical Problem

[0004]本实用新型的目的是提供一种结构合理、功能丰富、安全可靠的替换式插头及转接插头组合,以解决现有转换插头功能单一、缺乏状态指示和过压保护的问题

Benefits of technology

本实用新型方案中,通过集成多种类型插座,满足不同电器插头的转换需求,通过设置多种颜色的提示灯,使用户能够直观了解各插座通电状态,过压保护组件的引入有效防止电压异常对设备造成损害,提高使用安全性。整体结构紧凑、功能齐全、适用性强。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a replaceable plug and adapter plug combination, including the plug adapter that is equipped with multiple types of socket, bottom british standard plug, two sides'square and round prompt light and overvoltage protection component, and prompt light is composed by light -transmitting plastic sheet and emitting diode, and is connected in parallel with corresponding socket, is used for indicating the energized state, and overvoltage protection component realizes voltage abnormal protection through the fuse, the utility model has the advantages of strong compatibility, state visible, safe and reliable, is applicable to international travel and various electric appliance use scene.
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Description

Technical Field

[0001] This utility model belongs to the field of power socket technology, and particularly relates to a replacement plug and adapter plug combination. Background Technology

[0002] Most power adapters on the market are single-function designs, typically offering only one or a few socket types, failing to meet users' needs for compatibility with electrical plugs from different countries. Furthermore, traditional adapters lack status indicators, making it difficult for users to visually determine if the socket is powered, resulting in inconvenience and safety hazards. Additionally, most adapters lack overvoltage protection mechanisms, making them prone to damaging connected devices in case of abnormal voltage.

[0003] Therefore, it is necessary to design a multifunctional adapter plug with status indication and overvoltage protection to improve user experience and equipment safety. Summary of the Invention

[0004] The purpose of this invention is to provide a replacement plug and adapter plug combination that is structurally sound, feature-rich, safe and reliable, in order to solve the problems of existing adapter plugs having limited functionality, lacking status indication and overvoltage protection.

[0005] This utility model achieves the above-mentioned objectives through the following technical solution: it includes a plug adapter, the top and both ends of which are provided with several types of sockets, including a two-prong flat socket, a three-prong flat socket, a British standard three-prong flat socket, and a European standard two-prong round socket. The bottom of the plug adapter is a British standard two-prong round grounding plug. Several square indicator lights and round indicator lights are respectively provided on both sides of the plug adapter. An overvoltage protection component is also installed at the bottom of the plug adapter.

[0006] Furthermore, two two-pronged flat sockets are provided at both ends of the plug adapter, and there are two of them. Each of the two two-pronged flat sockets corresponds to one of the two circular indicator lights.

[0007] Furthermore, there are three square indicator lights, which are arranged side by side and closely adjacent to each other. The three square indicator lights correspond to a triangular flat socket, a British standard triangular flat socket, and a European standard two-prong round socket, respectively.

[0008] Furthermore, both the square indicator light and the round indicator light are composed of several light-transmitting plastic sheets and light-emitting diodes. The light-transmitting plastic sheets include two types: round plastic sheets and square plastic sheets. The plug adapter has square light slots and round light slots on both sides, and several light-emitting diodes are respectively installed in the square light slots and the round light slots. A partition is fixedly provided in the square light slot to separate the square light slot for installing the light-emitting diodes. The light-transmitting plastic sheets are pasted on the outside of the square light slots and the round light slots.

[0009] Furthermore, the number of the light-transmitting plastic sheet and the number of the light-emitting diodes are both five, and the five light-transmitting plastic sheets are all different colors.

[0010] Furthermore, the overvoltage protection component includes a mounting slot and a fuse. Electrical terminals are installed at both ends of the mounting slot. The overvoltage protection component includes a mounting slot and a fuse. Electrical terminals are installed at both ends of the mounting slot. A bayonet is fixedly provided at both ends of the outer side of the mounting slot, and a transparent plastic sheet is inserted into the bayonet.

[0011] Furthermore, the LEDs in the square and round indicator lights are electrically connected to the corresponding sockets, and each LED is connected in parallel with the power line of the corresponding socket through a resistor. The fuse is connected in series between the British standard two-prong round grounding plug and the input power lines of all sockets to cut off the power supply in case of overvoltage to protect the connected devices.

[0012] Furthermore, when the socket is powered on, the corresponding LED lights up to indicate the working status.

[0013] Beneficial effects: This utility model is reasonably designed and has the following beneficial effects: This utility model integrates multiple types of sockets to meet the conversion needs of different electrical plugs. Multiple colored indicator lights allow users to intuitively understand the power status of each socket. The introduction of overvoltage protection components effectively prevents damage to equipment caused by abnormal voltage, improving safety. The overall structure is compact, fully functional, and highly adaptable. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the bottom structure of this utility model being flipped over; Figure 3 This is a partial structural diagram of the present invention; Figure 4 This is a schematic diagram of a partial structural flip of the present invention.

[0015] In the diagram: 1-Plug adapter, 2-Square indicator light, 3-Round indicator light, 4-Overvoltage protection assembly; 11-Socket, 12-Square light trough, 13-Round light trough, 14-Partition, 21-Transparent plastic sheet, 22-Light-emitting diode, 41-Mounting slot, 42-Fuse, 43-Bayonet, 44-Transparent plastic sheet. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Combination Figures 1 to 4 The present invention relates to a replacement plug and adapter plug assembly, including a plug adapter 1. The plug adapter 1 has several types of sockets 11 on its top and both ends, including two-prong flat sockets, three-prong flat sockets, British standard three-prong flat sockets and European standard two-prong round sockets. The bottom of the plug adapter 1 is a British standard two-prong round grounded plug. Several square indicator lights 2 and round indicator lights 3 are respectively provided on both sides of the plug adapter 1. An overvoltage protection component 4 is also installed at the bottom of the plug adapter 1.

[0018] Two two-prong flat sockets 11 are located at both ends of the plug adapter 1, and there are two of them. The two two-prong flat sockets 11 correspond to the two round indicator lights 3 respectively.

[0019] There are three square indicator lights 2, which are arranged side by side and close together. The three square indicator lights 2 correspond to the triangular flat socket, the British standard triangular flat socket, and the European standard two-prong round socket, respectively.

[0020] Both the square indicator light 2 and the round indicator light 3 are composed of several light-transmitting plastic sheets 21 and light-emitting diodes 22. The light-transmitting plastic sheets 21 include two types: round plastic sheets and square plastic sheets. The plug adapter 1 has square light slots 12 and round light slots 13 on both sides respectively. Several light-emitting diodes 22 are installed in the square light slots 12 and round light slots 13 respectively. A partition 14 is fixedly installed in the square light slots 12 to separate the square light slots 12 for installing the light-emitting diodes 22. The light-transmitting plastic sheets 21 are pasted on the outside of the square light slots 12 and round light slots 13.

[0021] There are five light-transmitting plastic sheets 21 and five light-emitting diodes 22, and the five light-transmitting plastic sheets 21 are all different colors.

[0022] The overvoltage protection component 4 includes a mounting groove 41 and a fuse 42. Electrical terminals are installed at both ends of the mounting groove 41. The mounting groove 41 has slots 43 fixedly provided at both ends on the outside of the mounting groove 41, and transparent plastic sheets 44 are inserted into the slots.

[0023] The LEDs 22 in the square indicator light 2 and the round indicator light 3 are electrically connected to the corresponding sockets 11. Each LED 22 is connected in parallel with the power line of the corresponding socket through a resistor. The fuse 42 is connected in series between the British standard two-pin round grounded plug and the input power line of all sockets 11 to cut off the power supply in case of overvoltage to protect the connected equipment.

[0024] This causes the corresponding LED 22 to light up when the socket 11 is powered on, indicating the working status.

[0025] Working principle: During use, when the plug adapter 1 is connected to the power supply, the current is distributed to the circuits of each socket 11 through the fuse 42. If a device is connected to a socket 11 and powered on, the corresponding parallel LED 22 circuit is turned on, and the LED 22 lights up. If the input voltage is too high, the fuse 42 will quickly blow, achieving overvoltage protection.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A replacement plug and adapter plug assembly, comprising a plug adapter (1), wherein the plug adapter (1) is provided with several types of sockets (11) at its top and both ends, including a two-prong flat socket, a three-prong flat socket, a British standard three-prong flat socket and a European standard two-prong round socket, and the bottom of the plug adapter (1) is a British standard two-prong round grounding plug, characterized in that: The plug adapter (1) is provided with several square indicator lights (2) and round indicator lights (3) on both sides. The plug adapter (1) is also equipped with an overvoltage protection component (4) at the bottom.

2. The replacement plug and adapter plug assembly according to claim 1, characterized in that: The two-prong flat sockets (11) are located at both ends of the plug adapter (1) and there are two of them. The two two-prong flat sockets (11) correspond to the two round indicator lights (3) respectively.

3. The replacement plug and adapter plug assembly according to claim 2, characterized in that: The number of the three square indicator lights (2) is three, and the three square indicator lights (2) are arranged side by side and close together. The three square indicator lights (2) correspond to the triangular flat socket, the British standard triangular flat socket and the European standard double-pin round socket respectively.

4. The replacement plug and adapter plug assembly according to claim 3, characterized in that: Both the square indicator light (2) and the round indicator light (3) are composed of several light-transmitting plastic sheets (21) and light-emitting diodes (22). The light-transmitting plastic sheets (21) include two types: round plastic sheets and square plastic sheets. The plug adapter (1) is provided with square light slots (12) and round light slots (13) on both sides respectively. Several light-emitting diodes (22) are installed in the square light slots (12) and the round light slots (13) respectively. A partition (14) is fixedly provided in the square light slots (12) to separate the square light slots (12) for installing the light-emitting diodes (22). The light-transmitting plastic sheets (21) are pasted on the outside of the square light slots (12) and the round light slots (13).

5. The replacement plug and adapter plug assembly according to claim 4, characterized in that: The number of the light-transmitting plastic sheet (21) and the number of the light-emitting diode (22) are both five, and the five light-transmitting plastic sheets (21) are all different colors.

6. The replacement plug and adapter plug assembly according to claim 5, characterized in that: The overvoltage protection component (4) includes a mounting groove (41) and a fuse (42). Electrical terminals are installed at both ends of the mounting groove (41). A bayonet (43) is fixedly provided at both ends of the outer side of the mounting groove (41), and a transparent plastic sheet (44) is inserted into the bayonet.

7. The replacement plug and adapter plug assembly according to claim 6, characterized in that: The light-emitting diodes (22) in the square indicator light (2) and the round indicator light (3) are electrically connected to the corresponding sockets (11). Each light-emitting diode (22) is connected in parallel with the power line of the corresponding socket through a resistor. The fuse (42) is connected in series between the British standard two-prong round grounding plug and the input power line of all sockets (11) to cut off the power supply in case of overvoltage to protect the connected equipment.