Anti-overloading plug power line

Abstract

The utility model relates to the plug power line field, and discloses an anti-overload plug power line comprising a plug, the bottom end of the plug is provided with a live wire pin 2, the bottom end of the plug is provided with a protector, the bottom end of the protector is fixedly provided with a connecting seat, and the inner wall of the connecting seat is provided with a protection assembly. The protection assembly comprises a first live wire contact pin, the first live wire contact pin is fixedly connected to the bottom end of the connecting base, a connecting sleeve is slidably connected to the outer wall of the top end of the first live wire contact pin, and a sliding plate is fixedly connected to the left side of the connecting sleeve. According to the utility model, when overload is detected through the protector, the electromagnet is started to generate a magnetic field, and the iron sheet is attracted to drive the connecting sleeve to move, so that the connecting sleeve slides out of the second live wire pin to release the connection between the second live wire pin and the first live wire pin, and the connection between the plug and the plugboard can be disconnected; and heating and insulation aging of the power line caused by long-time overload operation are prevented, so that the safety in use is improved.

Description

Technical Field

[0001] The utility model relates to the field of plug power cords, in particular to an overload-proof plug power cord. Background Art

[0002] Plug power cord, also known as power plug cord or plug power cord, is a wire used to transmit electric current. It is usually used to connect electrical equipment to power sockets to achieve point-to-point transmission of current. With the popularization of modern electronic equipment and the improvement of the level of intelligence, the number of various household appliances, office equipment and industrial equipment continues to increase, and the demand for power cords is also growing.

[0003] However, in order to reduce costs and make the traditional power cord more economical, some safety protection functions are sacrificed. Once the working current of the appliance exceeds the carrying capacity of the power cord, a series of safety problems will be caused. Long-term overload operation will cause the power cord to heat up, insulation aging, and even cause fire and other serious consequences. Therefore, an anti-overload plug power cord is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides an anti-overload plug power cord, which aims to improve the problem in the prior art that "traditional power cords often lack overload protection functions in order to reduce costs and make the power cords more economical and affordable, and long-term overload operation is prone to danger."

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an anti-overload plug power cord, including a plug, a live wire pin 2 is provided at the bottom end of the plug, a protector is provided at the bottom end of the plug, a connecting seat is fixedly installed at the bottom end of the protector, a protective component is provided on the inner wall of the connecting seat, the protective component includes a live wire pin 1, the live wire pin 1 is fixedly connected to the bottom end of the connecting seat, a connecting sleeve is slidably connected to the top outer wall of the live wire pin 1, a slide is fixedly connected to the left side of the connecting sleeve, and the slide is slidably connected to the inner wall of the connecting seat.

[0006] As a further description of the above technical solution:

[0007] A limiting assembly is arranged at the top of the connecting seat, and the limiting assembly includes a fixed block, and the fixed block is fixedly connected to the right side of the connecting seat, and a positioning plate is fixedly connected to the top of the fixed block, and the left side of the positioning plate is elastically connected to the limiting block through spring 2.

[0008] As a further description of the above technical solution:

[0009] The left top end of the slide plate is fixedly connected with an iron sheet, and the inner wall of the connecting seat is fixedly connected with an electromagnet near the lower part of the iron sheet.

[0010] As a further description of the above technical solution:

[0011] The electromagnet is electrically connected to the protector, and the bottom end of the slide plate is fixedly connected with an insulating rod.

[0012] As a further description of the above technical solution:

[0013] An insulating sleeve is slidably connected to the outer wall of the lower end of the insulating rod, and the insulating sleeve is elastically connected to the insulating rod through a spring.

[0014] As a further description of the above technical solution:

[0015] The live wire pin 2 is plugged into the inner wall of the connecting sleeve, and the insulating sleeve is fixedly connected to the inner wall of the connecting seat.

[0016] As a further description of the above technical solution:

[0017] The limiting block is slidably connected to the top end of the protector, and a card slot is provided on the left side of the limiting block.

[0018] As a further description of the above technical solution:

[0019] A clamping block is fixedly connected to the right side of the plug, and the clamping block slides on the inner wall of the clamping slot.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, when an overload is detected by the protector, the protector is started and connected to the electromagnet. When current passes through the electromagnet, the electromagnet will generate a magnetic field, thereby attracting the iron sheet to move and driving the connecting sleeve to move, thereby sliding out of the live wire pin 2 to release the connection between the live wire pin 2 and the live wire pin 1, so that the connection between the plug and the plugboard can be disconnected, preventing long-term overload operation from causing heating of the power cord and aging of the insulation, thereby improving safety during use.

[0022] 2. In the utility model, after the card block squeezes the top inclined surface of the limit block, the limit block moves, so that the card block slides into the card slot in cooperation with the spring 2 to limit the plug, thereby preventing the plug from falling off, improving the stability of the plug connection, and increasing the convenience and safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the overall device in the utility model;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the plug in the utility model;

[0025] Figure 3It is a schematic cross-sectional view of the three-dimensional structure of the connecting seat in the utility model;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure section of the connecting seat and the limiting block and the three-dimensional structure disassembly of the plug in the utility model.

[0027] Legend:

[0028] 1. Connecting socket; 2. Live pin 1; 3. Protector; 4. Plug; 5. Limit block; 6. Fixing block; 21. Spring 1; 22. Insulating sleeve; 23. Insulating rod; 24. Slide plate; 25. Electromagnet; 26. Iron sheet; 27. Live pin 2; 28. Connecting sleeve; 51. Positioning plate; 52. Spring 2; 53. Block; 54. Slot. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Reference Figure 1 , Figure 3 , Figure 4 The utility model provides an embodiment: an overload-proof plug power cord, including a plug 4, a live wire pin 27 is provided at the bottom end of the plug 4, and the live wire pin 27 can be physically inserted into a female connector-type power plug board with a slot or a recess. Three live wire pins 27 are provided at the bottom end of the plug 4, which are respectively connected to the live wire, the ground wire, and the neutral wire. A protector 3 is provided at the bottom end of the plug 4. The protector 3 is an existing structure and can be implemented by technicians in this field. Since it is a prior art, it will not be described in detail in this case.

[0031] Furthermore, a connecting seat 1 is fixedly installed at the bottom end of the protector 3, and the plug board and the plug 4 can be connected by driving the live wire pin 2 through the connecting seat 1. A protective component is provided on the inner wall of the connecting seat 1, and the protective component includes a live wire pin 2. The live wire pin 2 is fixedly connected to the bottom end of the connecting seat 1, and the top outer wall of the live wire pin 2 is slidably connected with a connecting sleeve 28. The live wire pin 27 is inserted into the connecting sleeve 28 and can be connected to the live wire pin 2. A slide plate 24 is fixedly connected to the left side of the connecting sleeve 28, and the slide plate 24 supports the iron sheet 26. The slide plate 24 is slidably connected to the inner wall of the connecting seat 1.

[0032] Reference Figure 1 , Figure 2A limiting assembly is provided at the top of the connecting seat 1, and the limiting assembly includes a fixing block 6, which provides support. The fixing block 6 is fixedly connected to the right side of the connecting seat 1, and a positioning plate 51 is fixedly connected to the top of the fixing block 6. The positioning plate 51 provides support. The left side of the positioning plate 51 is elastically connected to the limiting block 5 through a spring 2 52. The top of the left side of the limiting block 5 is set as an inclined surface, and the limiting block 5 can be moved to squeeze the spring 2 52 by squeezing the inclined surface of the limiting block 5. The limiting block 5 can be reset by the reverse force of the spring 2 52 being squeezed, thereby driving the card slot 54 to move, so that the card block 53 is stuck in the card slot 54 to limit the plug 4, thereby preventing the plug 4 from falling off, improving the stability of the connection of the plug 4, and increasing the convenience and safety of use.

[0033] Reference Figure 3 , Figure 4 An iron sheet 26 is fixedly connected to the top left side of the slide plate 24, and the iron sheet 26 can be attracted by the electromagnet 25 to move. The inner wall of the connecting seat 1 is fixedly connected to the lower part of the iron sheet 26, and the electromagnet 25 can generate suction after being started, so that the iron sheet 26 moves.

[0034] Reference Figure 1 , Figure 3 , Figure 4 The electromagnet 25 is electrically connected to the protector 3, and the protector 3 is activated after detecting the overload, thereby connecting the electromagnet 25 so that the electromagnet 25 generates magnetism, so that the electromagnet 25 attracts the iron sheet 26, so that the iron sheet 26 moves. The bottom end of the slide plate 24 is fixedly connected with the insulating rod 23, and the lower end outer wall of the insulating rod 23 is slidably connected with the insulating sleeve 22. The insulating sleeve 22 and the insulating rod 23 are elastically connected by a spring 21. After the insulating rod 23 squeezes the spring 21, the insulating rod 23 can be reset by the reverse force of the spring 21 being squeezed, thereby resetting the slide plate 24 and the connecting sleeve 28.

[0035] Furthermore, the live wire pin 27 is plugged into the inner wall of the connecting sleeve 28, and the insulating sleeve 22 is fixedly connected to the inner wall of the connecting seat 1. The movement of the connecting sleeve 28 can connect the live wire pin 27 with the live wire pin 1 2. When the electromagnet 25 is started, it will attract the iron sheet 26 to move and drive the connecting sleeve 28 to slide out of the live wire pin 27, so that the live wire pin 27 can be disconnected from the live wire pin 1 2, thereby achieving an overload protection effect.

[0036] Reference Figure 1 , Figure 2 The limit block 5 is slidably connected to the top of the protector 3, a slot 54 is provided on the left side of the limit block 5, and a block 53 is fixedly connected to the right side of the plug 4. The block 53 slides on the inner wall of the slot 54. The block 53 slides into the slot 54 to limit the plug 4, thereby preventing the plug 4 from falling off.

[0037] Working principle: When in use, the live wire pin 2 is connected to the plug board by inserting the connecting seat 1 into the plug board. At this time, the moving plug 4 is inserted into the top jack of the connecting seat 1 through the protector 3, so that the live wire pin 2 27 slides into the inner wall of the connecting sleeve 28 for connection, so that the live wire pin 2 is connected to the live wire pin 2 27 through the connecting sleeve 28. At the same time, the inclined surface of the limit block 5 is squeezed by the plug 4 to make the limit block 5 move outward, and the limit block 5 moves and squeezes the spring 2 52 so that the slot 54 is aligned with the block 53. The reverse force of the spring 2 52 being squeezed resets the limit block 5, so that the block 53 enters the slot 54, so that the plug 4 can be limited, thereby preventing the plug 4 from falling off, improving the stability of the connection of the plug 4, and increasing the convenience and safety of use. At this time, the plug 4 is connected to the connecting sleeve 28 and the live wire pin 2, and at the same time, it is connected to the plug board through the live wire pin 2, which has good applicability.

[0038] When in use, when an overload occurs, it is first detected by the protector 3. After the protector 3 detects the overload, the electromagnet 25 is started. The electromagnet 25 is started to generate magnetic force to continuously attract the iron sheet 26, so that the iron sheet 26 moves downward. The movement of the iron sheet 26 drives the slide plate 24 and the connecting sleeve 28 to move. The connecting sleeve 28 moves downward and disconnects the live pin 2 27, so that the live pin 27 can be disconnected from the live pin 1 2, thereby preventing long-term overload operation from causing heating of the power cord and aging of the insulation, thereby improving safety during use.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An overload-proof plug power cord, comprising a plug (4), characterized in that: A live wire pin 2 (27) is arranged at the bottom end of the plug (4), a protector (3) is arranged at the bottom end of the plug (4), a connecting seat (1) is fixedly mounted at the bottom end of the protector (3), a protective component is arranged on the inner wall of the connecting seat (1), the protective component comprises a live wire pin 1 (2), the live wire pin 1 (2) is fixedly connected to the bottom end of the connecting seat (1), a connecting sleeve (28) is slidably connected to the top outer wall of the live wire pin 1 (2), a slide plate (24) is fixedly connected to the left side of the connecting sleeve (28), and the slide plate (24) is slidably connected to the inner wall of the connecting seat (1).

2. The overload-proof plug power cord according to claim 1, characterized in that: A limit assembly is arranged at the top of the connecting seat (1), the limit assembly comprising a fixed block (6), the fixed block (6) being fixedly connected to the right side of the connecting seat (1), the top of the fixed block (6) being fixedly connected to a positioning plate (51), the left side of the positioning plate (51) being elastically connected to the limit block (5) via a second spring (52).

3. The overload-proof plug power cord according to claim 1, characterized in that: An iron sheet (26) is fixedly connected to the top left side of the slide plate (24), and an electromagnet (25) is fixedly connected to the inner wall of the connection seat (1) below the iron sheet (26).

4. The overload-proof plug power cord according to claim 3, characterized in that: The electromagnet (25) is electrically connected to the protector (3), and the bottom end of the slide plate (24) is fixedly connected to an insulating rod (23).

5. The overload-proof plug power cord according to claim 4, characterized in that: An insulating sleeve (22) is slidably connected to the outer wall of the lower end of the insulating rod (23), and the insulating sleeve (22) is elastically connected to the insulating rod (23) via a spring 1 (21).

6. The overload-proof plug power cord according to claim 5, characterized in that: The live wire pin 2 (27) is plugged into the inner wall of the connecting sleeve (28), and the insulating sleeve (22) is fixedly connected to the inner wall of the connecting seat (1).

7. The overload-proof plug power cord according to claim 2, characterized in that: The limit block (5) is slidably connected to the top end of the protector (3), and a slot (54) is provided on the left side of the limit block (5).

8. The overload-proof plug power cord according to claim 2, characterized in that: A clamping block (53) is fixedly connected to the right side of the plug (4), and the clamping block (53) slides on the inner wall of the clamping groove (54).

Images