Safety early warning type overload automatic power-off power plug
By incorporating a circuit breaker protection module and a rotating rod side plate structure into the power plug, the problem of difficulty in unplugging the power plug is solved, enabling quick plugging and unplugging and convenient storage, thus improving safety and practicality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LEE YUEN ELECTRICAL MFY LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-12
AI Technical Summary
Existing power plugs are difficult to unplug quickly when the plug and socket are tightly connected, especially when the operator's hands are not in good condition. This may obstruct the plugging and unplugging action, prolong the operation time, or even damage the plug or socket, affecting safety and equipment use.
Design a safety warning type overload automatic power cut-off power plug with built-in circuit breaker protection module and rotating rod and side plate structure. The rotating rod drives the side plate to unfold in a staggered manner to achieve quick plugging and unplugging, and the power cord can be conveniently stored through buckle and storage clamp structure.
It achieves automatic power-off protection in case of abnormal current, improves the practicality and convenience of the plug, ensures quick plugging and unplugging and safety, prevents socket damage, and improves operational safety and equipment utilization efficiency.
Smart Images

Figure CN224233082U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of power plug technology, specifically relating to a safety warning type overload automatic power cut-off power plug. Background Technology
[0002] A power plug is a device that connects electrical appliances and other devices to a power source; it is also called a power cord plug. Depending on its purpose, a power plug can be used with different currents and voltages. For example, some plugs can be used with currents of 16A, 13A, 10A, 5A, and 2.5A, and voltages of 250V, 125V, and 36V, etc. Additionally, the frequency of a power plug is generally 50 / 60Hz.
[0003] Power plugs achieve automatic overload protection with safety warnings primarily through built-in overload protection devices. These devices monitor the current flowing through the socket in real time and automatically cut off the power when the current exceeds a preset safe range, effectively preventing electrical overload, short circuits, and other safety hazards. However, when using power plugs with automatic overload protection, the tight connection between the plug and socket ensures safe and stable power transmission. Therefore, if the operator's hands are unlubricated, wet, wearing heavy gloves, or under other unfavorable conditions, the plugging and unplugging process may be obstructed. In such cases, it is difficult for the operator to quickly and smoothly separate the plug from the socket, which not only prolongs the operation time but may also damage the plug or socket due to improper force, potentially causing safety hazards and affecting the normal use of the equipment and the safety of the operator. Utility Model Content
[0004] The purpose of this invention is to provide a safety-prevention, overload-automatic power-off plug. This addresses the problem in existing power plugs where, due to the tight connection between the plug and socket to ensure power transmission safety and stability, the plug-out process can be obstructed if the operator's hands are unlubricated, damp, wearing heavy gloves, or under other unfavorable conditions. In such cases, the operator cannot quickly and smoothly separate the plug from the socket, which not only prolongs operation time but may also damage the plug or socket due to improper force, potentially causing safety hazards and affecting the normal use of equipment and the safety of the operator.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a safety warning type overload automatic power-off power plug, including a power plug body and a circuit breaker protection module installed inside the power plug body, wherein a power cord is connected to the tail end of the power plug body, and an output plug is connected to the other end of the power cord.
[0006] A rotating rod is connected to the back side of the power plug body. A first side plate is connected to the surface of the rotating rod. A second side plate is connected to the surface of the first side plate. A mating plate is connected to the back side of the second side plate. A mating block is connected to one side of the mating plate. Buckles are connected to both ends of the mating block. A mating seat is connected to the side of the first side plate near the mating block.
[0007] As a preferred embodiment of the safety warning type overload automatic power cut-off power plug of this utility model, the surface of the second side plate is connected through the rotating rod, the first side plate and the second side plate are staggered, and the first side plate and the second side plate are made of rigid plastic plate material.
[0008] As a preferred embodiment of the safety warning type overload automatic power cut-off power plug of this utility model, the docking block docks with the opening on one side of the docking seat, the buckle is made of PVC material, and the buckle and the opening on the side of the docking seat form a fitting structure.
[0009] As a preferred embodiment of the safety warning type overload automatic power cut-off power plug of this utility model, the surface of the power cord is connected to a sleeve, the outer side wall of the sleeve is connected to a receiving plate, and the other end of the receiving plate is connected to a storage clamp.
[0010] As a preferred embodiment of the safety warning type overload automatic power cut-off power plug of this utility model, one end of the storage clamp is connected to a positioning plate, the inner wall of the opening of the positioning plate is connected to a positioning spring, the other end of the positioning spring is connected to a telescopic plate, and one end of the telescopic plate passes through the inside of the opening of the positioning plate.
[0011] As a preferred embodiment of the safety warning type overload automatic power cut-off power plug of this utility model, one end of the telescopic plate is connected to a positioning clamp relative to the positioning spring, and the upper and lower ends of the telescopic plate are connected to positioning blocks. The positioning blocks and the positioning grooves opened on the upper and lower sides of the inner wall of the positioning plate form a sliding connection structure.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This utility model installs a circuit breaker protection module inside the power plug body, automatically cutting off the power supply when the current is abnormal, providing comprehensive protection for household electricity. In addition, by rotating and unfolding the first and second side plates on the surface of the rotating rod, the docking block is disengaged from the opening of the docking seat, making it easy to unfold the first and second side plates in a staggered manner. This allows the operator to easily and quickly plug and unplug the power plug body into the socket by controlling the first and second side plates, thus improving the practicality of the power plug body. Attached Figure Description
[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0015] Figure 1 This is a schematic diagram of the overall front structure of the power plug of this utility model;
[0016] Figure 2 This is a schematic diagram of the overall back structure of the power plug of this utility model;
[0017] Figure 3 This is a schematic diagram of the unfolded side plate structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the docking block connection structure of this utility model;
[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of the positioning plate of this utility model.
[0020] In the diagram: 1. Power plug body; 101. Circuit breaker module; 2. Power cord; 3. Output plug; 4. Rotating rod; 5. First side plate; 6. Second side plate; 7. Connecting plate; 8. Connecting block; 9. Buckle; 10. Connecting seat; 11. Sleeve; 12. Receiving plate; 13. Storage clamp; 14. Positioning plate; 15. Positioning spring; 16. Telescopic plate; 17. Positioning clamp; 18. Positioning block. 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] Please see Figure 1-5 The present invention provides the following technical solution: a safety warning type overload automatic power cut-off power plug, including a power plug body 1 and a circuit breaker protection module 101 installed inside the power plug body 1. The tail end of the power plug body 1 is connected to a power cord 2, and the other end of the power cord 2 is connected to an output plug 3.
[0023] A rotating rod 4 is connected to the back side of the power plug body 1. A first side plate 5 is connected to the surface of the rotating rod 4. A second side plate 6 is connected to the surface of the first side plate 5. A mating plate 7 is connected to the back side of the second side plate 6. A mating block 8 is connected to one side of the mating plate 7. Buckles 9 are connected to both ends of the mating block 8. A mating seat 10 is connected to the side of the first side plate 5 near the mating block 8.
[0024] Preferably, the surface of the second side plate 6 is connected through the rotating rod 4, the first side plate 5 and the second side plate 6 are staggered, and the first side plate 5 and the second side plate 6 are made of rigid plastic sheet material.
[0025] In practical use, the first side plate 5 and the second side plate 6 facilitate quick plugging and unplugging of the power plug body 1. In addition, the circuit breaker protection module 101 inside the power plug body 1 is a mature existing technology. It contains a thermal element and circuit design. When the current is too high, the thermal element will respond quickly, generate heat and trigger the protection mechanism. After the protection mechanism is activated, it will cut off the power supply to prevent the appliance from being overloaded.
[0026] Preferably, the mating block 8 mates with the opening on one side of the mating seat 10, the buckle 9 is made of PVC material, and the buckle 9 and the opening on the side of the mating seat 10 form a fitting structure.
[0027] In practical use, by engaging the buckle 9 at the opening on the side of the docking seat 10, the first side plate 5 and the second side plate 6 can be rotated and stably stored.
[0028] Preferably, a sleeve 11 is connected to the surface of the power cord 2, a receiving plate 12 is connected to the outer side wall of the sleeve 11, and a storage clamp 13 is connected to the other end of the receiving plate 12.
[0029] In practical use, the storage clamp 13 and positioning clamp 17 facilitate the storage of the power cord 2, improving the convenience of using the power plug.
[0030] Preferably, one end of the storage clamp 13 is connected to a positioning plate 14, the inner wall of the opening of the positioning plate 14 is connected to a positioning spring 15, the other end of the positioning spring 15 is connected to a telescopic plate 16, and one end of the telescopic plate 16 passes through the inside of the opening of the positioning plate 14.
[0031] In practical use, the telescopic structure of the positioning spring 15 facilitates the adjustment of the positioning clamp 17 at one end of the telescopic plate 16, and facilitates the adjustment of the distance between the storage clamp 13 and the positioning clamp 17.
[0032] Preferably, a positioning clamp 17 is connected to one end of the telescopic plate 16 relative to the positioning spring 15, and positioning blocks 18 are connected to the upper and lower ends of the telescopic plate 16. The positioning blocks 18 and the positioning grooves opened on the inner wall of the positioning plate 14 form a sliding connection structure.
[0033] In practical use, by sliding the positioning block 18 along the positioning groove on the inner wall of the positioning plate 14, the telescopic plate 16 can be easily extended and retracted inside the positioning plate 14.
[0034] The working principle of this utility model is as follows: By installing the circuit breaker protection module 101 inside the power plug body 1, the protection module will automatically trigger and cut off the power supply when the current exceeds the set value, providing comprehensive protection for household electricity. Additionally, by rotating and unfolding the first side plate 5 and the second side plate 6 on the surface of the rotating rod 4, the buckle 9 disengages from the side opening of the docking seat 10, causing the docking block 8 to disengage from the opening of the docking seat 10. This facilitates the staggered unfolding of the first side plate 5 and the second side plate 6. Furthermore, the operator can control the first side plate 5 and the second side plate 6 to unfold. Plate 6 facilitates quick plugging and unplugging of the power plug body 1 into the socket, improving the practicality of the power plug body 1. In addition, by bending and storing the power cord 2 between the storage clamp 13 and the positioning clamp 17, the telescopic plate 16 is moved to extend and retract at the opening of the positioning plate 14, and the positioning spring 15 is stretched. This causes the positioning blocks 18 at the upper and lower ends of the telescopic plate 16 to slide along the positioning grooves on the inner wall of the positioning plate 14. At this time, the opening size of the storage clamp 13 and the positioning clamp 17 is adjusted, which facilitates the storage of the power cord 2 and improves the convenience of the power plug body 1.
[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A safety-prevention type overload automatic power-off power plug, comprising a power plug body (1) and a circuit breaker protection module (101) installed inside the power plug body (1), characterized in that: The power plug body (1) is connected to a power cord (2) at one end, and an output plug (3) is connected to the other end of the power cord (2). The back side of the power plug body (1) is connected to a rotating rod (4), the surface of the rotating rod (4) is connected to a first side plate (5), the surface of the first side plate (5) is connected to a second side plate (6), the back side of the second side plate (6) is connected to a mating plate (7), one side of the mating plate (7) is connected to a mating block (8), both ends of the mating block (8) are connected to buckles (9), and the side of the first side plate (5) near the mating block (8) is connected to a mating seat (10).
2. The safety warning type overload automatic power disconnection power plug according to claim 1, characterized in that: The surface of the second side plate (6) is connected through the rotating rod (4). The first side plate (5) and the second side plate (6) are staggered. The first side plate (5) and the second side plate (6) are made of hard plastic plate material.
3. The safety warning type overload automatic power disconnection power plug according to claim 1, characterized in that: The docking block (8) docks with the opening on one side of the docking seat (10). The buckle (9) is made of PVC material. The buckle (9) and the opening on the side of the docking seat (10) form a fitting structure.
4. A safety warning type overload automatic power disconnection power plug according to claim 1, characterized in that: The power cord (2) is connected to a sleeve (11), the outer wall of the sleeve (11) is connected to a support plate (12), and the other end of the support plate (12) is connected to a storage clamp (13).
5. A safety warning type overload automatic power disconnection power plug according to claim 4, characterized in that: One end of the storage clamp (13) is connected to a positioning plate (14), and the inner wall of the opening of the positioning plate (14) is connected to a positioning spring (15). The other end of the positioning spring (15) is connected to a telescopic plate (16), and one end of the telescopic plate (16) passes through the inside of the opening of the positioning plate (14).
6. A safety warning type overload automatic power disconnection power plug according to claim 5, characterized in that: The telescopic plate (16) is connected to a positioning clamp (17) at one end relative to the positioning spring (15), and the upper and lower ends of the telescopic plate (16) are connected to positioning blocks (18). The positioning blocks (18) and the positioning grooves opened on the inner wall of the positioning plate (14) form a sliding connection structure.