Plug structure and charger thereof

By designing a storage plug structure, the charger is inconvenient to carry and unsightly appearance is solved, and the charger is compact, beautiful and convenient to use.

CN119481801APending Publication Date: 2025-02-18DONGGUAN AOHAI TECH CO LTD
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Patent Information

Application Number
CN202411968161.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-02-18

AI Technical Summary

Technical Problem

The existing charger plug structure is inconvenient to carry, and the overall appearance is not beautiful.

Method used

A plug structure is designed, including a first pin, a second pin, a ground pin and two rotatable closures. The closure cover can rotate around the main body, and when connected, the pins are stored in the closure cover, thereby reducing the volume and increasing aesthetics.

Benefits of technology

By storing the pins in the closure, the size of the charger is reduced and the overall lightness is overall, improving the aesthetics and convenience of the charger.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a plug structure and a charger thereof, the plug structure comprises a first pin, a second pin, a ground wire pin and two closing covers, the first pin and the second pin are inserted into one end of a main body, two boxes are rotatably connected with one end of the main body, and the ground wire pin is rotatably arranged on any closing cover; the two closing covers can be buckled when rotating around one end of the main body, the first pin, the second pin and the ground wire pin can be contained in the two closing covers, before the two closing covers are buckled, the ground wire pin is rotated to be attached to the corresponding closing cover, and the ground wire pin is inserted into the corresponding closing cover through buckling of the two closing covers of the plug structure. The first pin, the second pin and the ground wire pin are accommodated in the two closing covers, so that the size is reduced, the whole charger is light and thin, the charger is small and attractive, the whole appearance is complete, the pins are protected, the charger is attractive, the use is convenient, the carrying is convenient, and the use effect is better.
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Description

Technical Field

[0001] The present invention relates to the technical field of charger manufacturing, and in particular to a plug structure and a charger thereof. Background Art

[0002] The existing British standard chargers have L / N pole pins and ground pins that are basically fixed and exposed. They are relatively large in size, easily scratched during carrying, inconvenient to carry, and the overall appearance is not beautiful. Summary of the invention

[0003] The purpose of the present invention is to provide a plug structure and a charger thereof, aiming to solve the technical problems that the existing charger is inconvenient to carry and has an unsightly overall appearance.

[0004] In order to solve the above problem, according to one aspect of the present application, an embodiment of the present invention provides a plug structure, which is applied to a charger, wherein the charger includes a main body, and the plug structure includes a first plug pin, a second plug pin, a ground wire plug pin and two closing covers, wherein the first plug pin and the second plug pin are inserted into one end of the main body, and the two closing covers are rotatably connected to one end of the main body, and the ground wire plug pin is rotatably arranged on any of the closing covers;

[0005] The two closing covers can be interlocked when rotating around one end of the main body, and the first plug pin, the second plug pin and the ground wire plug pin can be stored in the two closing covers.

[0006] In some embodiments, the closing cover comprises an inner cover and an outer cover buckled on one side of the inner cover, and the opposite sides of the inner covers of the two closing covers are configured with a first receiving groove capable of receiving the ground wire pin when buckled.

[0007] In some embodiments, a connecting portion is provided at one end of the inner cover facing the main body, the main body has an insertion slot, the connecting portion is inserted into the insertion slot, the main body and the connecting portion both have a socket colinear with the rotation axis of the closing cover, and pins are passed through the two sockets.

[0008] In some embodiments, a side of the connecting portion away from the inner cover is configured with meshing teeth so that the two closing covers can be linked.

[0009] In some embodiments, the opposite sides of the two inner covers are respectively constructed with a second receiving groove and a third receiving groove that can accommodate the first pin and the second pin when buckled; and / or a magnetic attraction member is arranged between the inner cover and the outer cover.

[0010] In some embodiments, the first receiving groove passes through the inner cover on one side facing the outer cover, and the ground wire pin has a rotating shaft, which is rotatably clamped between the inner cover and the outer cover and passed through the first receiving groove, wherein the outer cover and the inner cover are the outer shell and inner cover that are closed together and have the ground wire pin.

[0011] In some embodiments, the rotating shaft includes a limiting shaft segment, and a spring sheet is arranged between the inner cover and the outer cover, the spring sheet has a bending portion protruding toward the limiting shaft segment, the bending portion abuts against the limiting shaft segment, and when the angle between the ground wire pin and the inner cover is greater than a first preset angle, the bending portion can cause the ground wire pin to rotate to an expanded state perpendicular to the inner cover; when the angle between the ground wire pin and the inner cover is less than a second preset angle, the bending portion can cause the ground wire pin to rotate to a storage state stored in the first accommodating groove, and the first preset angle is less than or equal to the second preset angle.

[0012] In some embodiments, the limiting shaft segment includes a first stop surface and a second stop surface connected at a third preset angle, and the first stop surface and the second stop surface are arranged away from each other. The bending portion includes a third stop surface and a fourth stop surface connected at a fourth preset angle, and the third stop surface and the fourth stop surface are arranged away from each other. In the expanded state, the first stop surface is in contact with the third stop surface, and in the retracted state, the second stop surface is in contact with the fourth stop surface.

[0013] In some embodiments, a fourth receiving groove for receiving the top of the ground wire pin is configured at one end of the main body, and when the two covers are buckled together, the ground wire pin can be received in the space formed by the first receiving groove and the fourth receiving groove.

[0014] According to another aspect of the present application, an embodiment of the present invention further provides a charger, which includes a main body and the plug structure as described above.

[0015] Compared with the prior art, the plug structure of the present invention has at least the following beneficial effects:

[0016] The embodiment of the present invention discloses a plug structure, which is applied to a charger, specifically a British standard charger, the charger comprises a main body, the plug structure comprises a first plug pin, a second plug pin, a ground wire plug pin and two covers, the first plug pin and the second plug pin are inserted at one end of the main body, the two boxes are rotatably connected to one end of the main body, and the ground wire plug pin is rotatably arranged on any of the covers;

[0017] The two closing covers of the present invention can be interlocked when rotated around one end of the main body, and the first plug pin, the second plug pin and the ground wire plug pin can be stored in the two closing covers. Before the two closing covers are buckled, the ground wire plug pin is rotated to fit into the corresponding closing cover, and the two closing covers of the plug structure are buckled to store the first plug pin, the second plug pin and the ground wire pin in the two closing covers, thereby reducing the volume and making the overall charger light and thin, so that the charger is not only small and beautiful, but also has a complete overall appearance, which protects the plug pins and is beautiful, and is convenient to use and easy to carry, etc., with a better use effect.

[0018] On the other hand, the charger provided by the present invention is manufactured based on the above-mentioned plug structure. Its beneficial effects refer to the beneficial effects of the above-mentioned plug structure, which will not be described in detail here.

[0019] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0021] Figure 1 A schematic diagram of the structure of a plug provided in an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of the structure of the plug provided by an embodiment of the present invention in another state;

[0023] Figure 3 A schematic diagram of the exploded structure of a plug structure provided by an embodiment of the present invention;

[0024] Figure 4 A schematic diagram of the exploded structure of the plug structure with the cover provided in an embodiment of the present invention;

[0025] Figure 5 A schematic diagram of the exploded structure of a plug structure with a ground pin and a closed cover provided by an embodiment of the present invention;

[0026] Figure 6 A schematic diagram of the exploded structure of the rotating shaft and the spring piece when the ground wire pin of the plug structure provided by the embodiment of the present invention is in an extended state;

[0027] Figure 7A schematic diagram of the exploded structure of the rotating shaft and the spring piece when the wire plug of the plug structure provided by an embodiment of the present invention is in the storage state.

[0028] Description of reference numerals:

[0029] 1. Main body; 11. Insertion slot; 12. Insertion hole; 13. Fourth receiving slot;

[0030] 2. First pin;

[0031] 3. Second pin;

[0032] 4. ground pin; 41. rotating shaft; 411. first anti-rotation surface; 412. second anti-rotation surface;

[0033] 5. Closing cover; 51. Inner cover; 511. First receiving groove; 515. Engaging teeth; 512. Connecting portion; 513. Second receiving groove; 514. Third receiving groove; 52. Outer cover;

[0034] 6. Pin;

[0035] 7. Magnetic parts;

[0036] 8. Spring piece; 81. Third anti-rotation surface; 82. Fourth anti-rotation surface. DETAILED DESCRIPTION

[0037] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention application are described in detail below in conjunction with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures, or characteristics in one or more embodiments may be combined in any suitable form.

[0038] In the description of the present invention, it should be clarified that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, but are not necessarily used to describe a specific order or sequence; the terms "vertical", "lateral", "longitudinal", "front", "rear", "left", "right", "up", "down", "horizontal", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention, and do not mean that the referred device or element must have a specific direction or position, and therefore cannot be understood as a limitation on the present invention.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Example 1

[0041] like Figure 1-7 As shown, an embodiment of the present invention provides a plug structure, which is applied to a charger, the charger comprising a main body 1, the plug structure comprising a first pin 2, a second pin 3, a ground pin 4 and two covers 5, the first pin 2 and the second pin 3 are inserted at one end of the main body 1, the two covers 5 are rotatably connected to one end of the main body 1, and the ground pin 4 is rotatably arranged on any of the covers 5;

[0042] The two closing covers 5 can be interlocked when rotating around one end of the main body 1 , and the first plug pin 2 , the second plug pin 3 and the ground wire plug pin 4 can be received in the two closing covers 5 .

[0043] In this embodiment, the plug structure is applied to a charger, specifically a British standard charger, the charger includes a main body 1, the plug structure includes a first pin 2, a second pin 3, a ground pin 4 and two covers 5, the first pin 2 and the second pin 3 are inserted at one end of the main body 1, the two covers 5 are rotatably connected to one end of the main body 1, and the ground pin 4 is rotatably arranged on any of the covers 5;

[0044] The two closing covers 5 of the present embodiment can be interlocked when rotated around one end of the main body 1, and the first pin 2, the second pin 3 and the ground pin 4 can be stored in the two closing covers 5. Before the two closing covers 5 are interlocked, the ground pin 4 is rotated to fit into the corresponding closing cover 5. The two closing covers 5 of the plug structure of the present embodiment are interlocked to store the first pin 2, the second pin 3 and the ground pin 4 in the two closing covers 5, thereby reducing the volume and making the overall charger light and thin, so that the charger is not only small and beautiful, but also has a complete overall appearance, protects the pins and is beautiful, and is convenient to use and easy to carry, etc., with better use effect.

[0045] In some embodiments, the closing cover 5 includes an inner cover 51 and an outer cover 52 buckled on one side of the inner cover 51 , and the opposite sides of the inner covers 51 of the two closing covers 5 are configured with a first receiving groove 511 capable of receiving the ground pin 4 when buckled.

[0046] In this embodiment, a first receiving groove 511 capable of receiving the ground pin 4 when the two closing covers 5 are buckled is constructed on the opposite side of the inner covers 51 of the two closing covers 5. Before the two closing covers 5 are buckled, the ground pin 4 is first rotated so that a part of the ground pin 4 is received in the first receiving groove 511 on the inner cover 51 of the closing cover 5 corresponding thereto. Then, the two closing covers 5 are buckled so that the other part of the ground pin 4 is received in the first receiving groove 511 on the inner cover 51 of the other closing cover 5. This reduces the volume and makes the charger light and thin as a whole. The charger is not only compact and beautiful, but also has a complete overall appearance and protects the pin and is beautiful. In addition, the charger is convenient to use and easy to carry, and has a better use effect.

[0047] In some embodiments, a connecting portion 512 is provided at one end of the inner cover 51 facing the main body 1, the main body 1 has an insertion slot 11, the connecting portion 512 is inserted into the insertion slot 11, the main body 1 and the connecting portion 512 both have a socket 12 that is colinear with the rotation axis of the closing cover 5, and pins 6 are passed through the two sockets 12.

[0048] In this embodiment, the connection portion 512 of the inner cover 51 facing one end of the main body 1 is inserted into the insertion groove 11 of the main body 1, and the pin shaft 6 is simultaneously passed through the insertion hole 12 of the connection portion 512 and the insertion hole 12 of the closing cover 5, so that the closing cover 5 can be rotatably arranged on the main body 1, thereby realizing the buckling and opening of the two closing covers 5.

[0049] In some embodiments, a side of the connecting portion 512 away from the inner cover 51 is configured with meshing teeth 515 to enable the two closing covers 5 to be linked.

[0050] In this embodiment, the connecting portion 512 is configured with meshing teeth 515 on the side away from the inner cover 51 so that the two closing covers 5 can be linked. Specifically, the connecting portion 512 on the inner covers 51 of the two closing covers 5 is inserted into an insertion slot 11 of the main body 1, and the meshing teeth 515 of the connecting portion 512 on the inner covers 51 of the two closing covers 5 are meshed. When one closing cover 5 is rotated, the other closing cover 5 rotates synchronously, and the rotation direction is opposite. Therefore, the structure of this embodiment can make the two closing covers 5 linked.

[0051] In some embodiments, opposite sides of the inner covers 51 of the two closing covers 5 are respectively configured with a second receiving groove 513 and a third receiving groove 514 that can receive the first plug pin 2 and the second plug pin 3 when snapped together.

[0052] In this embodiment, by respectively constructing a second accommodating groove 513 and a third accommodating groove 514 on opposite sides of the inner cover 51 of the two closing covers 5, which can accommodate the first pin 2 and the second pin 3 when buckled, this structure can reduce the volume and make the charger light and thin as a whole, so that the charger is not only small and beautiful, but also has a complete overall appearance, protects the pins and is beautiful, and is easy to use and carry, and has a better use effect.

[0053] In some embodiments, a magnetic attraction member 7 is disposed between the inner cover 51 and the outer cover 52 .

[0054] In this embodiment, a magnetic member 7 is provided between the inner cover 51 and the outer cover 52. When the two closing covers 5 are buckled together, the two closing covers 5 can be fixed by the suction force of the magnetic member 7 on the two closing covers 5. In this way, the two closing covers 5 are fixed so that they will not be easily opened when not in use, and the two closing covers 5 are closed, thereby achieving the purpose of hiding the first pin 2, the second pin 3, and the ground pin 4.

[0055] In some embodiments, the first receiving groove 511 passes through the inner cover 51 on the side facing the outer cover 52, and the ground wire pin 4 has a rotating shaft 41, and the rotating shaft 41 is rotatably clamped between the inner cover 51 and the outer cover 52, and is passed through the first receiving groove 511, wherein the outer cover 52 and the inner cover 51 are the outer shell and inner cover 51 of the closing cover 5 having the ground wire pin 4.

[0056] In this embodiment, the first accommodating groove 511 passes through the inner cover 51 on the side facing the outer cover 52, and the ground wire pin 4 has a rotating shaft 41, which can be rotatably clamped between the inner cover 51 and the outer cover 52, and is inserted into the first accommodating groove 511, wherein the outer cover 52 and the inner cover 51 are the outer shell and inner cover 51 of the closing cover 5 with the ground wire pin 4, and a semicircular positioning groove adapted to the rotating shaft 41 can be provided between the inner cover 51 and the outer cover 52. Since the ground wire pin 4 is inserted into the first accommodating groove 511, the ground wire pin 4 can be received in the first accommodating groove 511 when rotating around the axis of the rotating shaft 41, or partially extend out of the first accommodating groove 511, and the ground wire pin 4 is perpendicular to the closing cover 5 when the charger is in use.

[0057] In some embodiments, the rotating shaft 41 includes a limiting shaft segment, and a spring sheet 8 is arranged between the inner cover 51 and the outer cover 52, and the spring sheet 8 has a bending portion protruding toward the limiting shaft segment, and the bending portion abuts against the limiting shaft segment. When the angle between the ground wire pin 4 and the inner cover 51 is greater than the first preset angle, the bending portion can enable the ground wire pin 4 to rotate to an expanded state perpendicular to the inner cover 51; when the angle between the ground wire pin 4 and the inner cover 51 is less than the second preset angle, the bending portion can enable the ground wire pin 4 to rotate to a storage state stored in the first accommodating groove 511, and the first preset angle is less than or equal to the second preset angle.

[0058] In this embodiment, by constructing a limiting shaft section on the rotating shaft 41, a spring sheet 8 is arranged between the inner cover 51 and the outer cover 52, a section of the spring sheet 8 is fixed on the inner cover 51 or the outer cover 52, and a bending portion protruding toward the limiting shaft section is constructed on the spring sheet 8. The bending portion is in abutment with the limiting shaft section. When the grounding pin 4 is rotated to the angle between the inner cover 51 and the grounding pin 4 is greater than the first preset angle, the bending portion can rotate the grounding pin 4 to the unfolded state perpendicular to the inner cover 51, and when the grounding pin 4 is rotated to the angle between the inner cover 51 and the grounding pin 4 is less than the second preset angle, the bending portion can rotate the grounding pin 4 to the storage state stored in the first receiving groove 511. The overall integrity and beauty are ensured. When in use, the two closing covers 5 are opened, and the grounding pin 4 is ejected to the unfolded state, or rebounded to the storage state of the grounding pin 4 by a semi-automatic rebound method, thereby improving the convenience of use.

[0059] The first preset angle may be 45° or other angles, and the second preset angle may be 45° or other angles.

[0060] In some embodiments, the limiting axis segment includes a first stop surface 411 and a second stop surface 412 connected at a third preset angle, and the first stop surface 411 and the second stop surface 412 are arranged away from each other. The bending portion includes a third stop surface 81 and a fourth stop surface 82 connected at a fourth preset angle, and the third stop surface 81 and the fourth stop surface 82 are arranged away from each other. In the expanded state, the first stop surface 411 is in contact with the third stop surface 81, and in the retracted state, the second stop surface 412 is in contact with the fourth stop surface 82.

[0061] In this embodiment, the limiting shaft section includes a first stop surface 411 and a second stop surface 412 connected at a third preset angle, and the first stop surface 411 and the second stop surface 412 are arranged away from each other. The bending portion includes a third stop surface 81 and a fourth stop surface 82 connected at a fourth preset angle, and the third stop surface 81 and the fourth stop surface 82 are arranged away from each other. In the expanded state, the first stop surface 411 is in contact with the third stop surface 81, and in the stored state, the second stop surface 412 is in contact with the fourth stop surface 82. The structure of this embodiment can be achieved by selecting a suitable third preset angle and a fourth preset angle so that when the ground wire pin 4 is rotated to an angle greater than the first preset angle with the inner cover 51, the bending portion can rotate the ground wire pin 4 to an expanded state perpendicular to the inner cover 51, and when the ground wire pin 4 is rotated to an angle less than the second preset angle with the inner cover 51, the bending portion can rotate the ground wire pin 4 to a stored state stored in the first accommodating groove 511.

[0062] In some embodiments, a fourth receiving groove 13 for receiving the top of the ground pin 4 is configured at one end of the main body 1 , and when the two closing covers 5 are buckled together, the ground pin 4 can be received in the space formed by the first receiving groove 511 and the fourth receiving groove 13 .

[0063] Example 2

[0064] The embodiment of the present invention further provides a charger, which includes a main body 1 and the plug structure of embodiment 1.

[0065] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described equipment, devices and units can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0066] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A plug structure, applied to a charger, the charger comprising a main body (1), characterized in that: The plug structure comprises a first plug pin (2), a second plug pin (3), a ground wire plug pin (4) and two covers (5); the first plug pin (2) and the second plug pin (3) are inserted into one end of the main body (1); the two covers (5) are rotatably connected to one end of the main body (1); and the ground wire plug pin (4) is rotatably arranged on any one of the covers (5); The two closing covers (5) can be interlocked when rotating around one end of the main body (1), and can accommodate the first plug pin (2), the second plug pin (3) and the ground wire plug pin (4) in the two closing covers (5).

2. The plug structure according to claim 1, characterized in that: The closing cover (5) comprises an inner cover (51) and an outer cover (52) buckled on one side of the inner cover (51), and the opposite sides of the inner covers (51) of the two closing covers (5) are configured with a first receiving groove (511) capable of receiving the ground wire pin (4) when buckled.

3. The plug structure according to claim 2, characterized in that: The inner cover (51) is provided with a connecting portion (512) at one end facing the main body (1); the main body (1) has an insertion slot (11), and the connecting portion (512) is inserted into the insertion slot (11); the main body (1) and the connecting portion (512) both have insertion holes (12) colinear with the rotation axis of the closing cover (5), and pin shafts (6) are inserted into the two insertion holes (12).

4. The plug structure according to claim 3, characterized in that: The side of the connecting portion (512) away from the inner cover (51) is configured with meshing teeth (515) so as to enable the two closing covers (5) to be linked.

5. The plug structure according to claim 2, characterized in that: The inner covers (51) of the two closing covers (5) are respectively configured with a second receiving groove (513) and a third receiving groove (514) capable of receiving the first plug pin (2) and the second plug pin (3) when snapped together on opposite sides of the inner covers (51); and / or a magnetic attraction member (7) is provided between the inner cover (51) and the outer cover (52).

6. The plug structure according to claim 2, characterized in that: The first receiving groove (511) passes through the inner cover (51) on the side facing the outer cover (52), and the grounding pin (4) has a rotating shaft (41). The rotating shaft (41) is rotatably clamped between the inner cover (51) and the outer cover (52), and is inserted into the first receiving groove (511), wherein the outer cover (52) and the inner cover (51) are the outer shell and inner cover (51) of the closing cover (5) having the grounding pin (4).

7. The plug structure according to claim 6, characterized in that: The rotating shaft (41) comprises a limiting shaft section, and a spring sheet (8) is arranged between the inner cover (51) and the outer cover (52), and the spring sheet (8) has a bending portion protruding toward the limiting shaft section, and the bending portion abuts against the limiting shaft section. When the angle between the ground wire pin (4) and the inner cover (51) is greater than a first preset angle, the bending portion can enable the ground wire pin (4) to rotate to an unfolded state perpendicular to the inner cover (51); when the angle between the ground wire pin (4) and the inner cover (51) is less than a second preset angle, the bending portion can enable the ground wire pin (4) to rotate to a storage state stored in the first receiving groove (511), and the first preset angle is less than or equal to the second preset angle.

8. The plug structure according to claim 7, characterized in that: The limiting shaft section includes a first stop surface (411) and a second stop surface (412) connected at a third preset angle, and the first stop surface (411) and the second stop surface (412) are arranged away from each other. The bending portion includes a third stop surface (81) and a fourth stop surface (82) connected at a fourth preset angle, and the third stop surface (81) and the fourth stop surface (82) are arranged away from each other. In the expanded state, the first stop surface (411) is in contact with the third stop surface (81), and in the retracted state, the second stop surface (412) is in contact with the fourth stop surface (82).

9. The plug structure according to claim 2, characterized in that: One end of the main body (1) is configured with a fourth receiving groove (13) for receiving the top of the ground wire pin (4); when the two closing covers (5) are buckled together, the ground wire pin (4) can be received in the space formed by the first receiving groove (511) and the fourth receiving groove (13).

10. A charger, characterized in that: The charger comprises a main body (1) and a plug structure according to any one of claims 1 to 9.