Collapsible Plug

Abstract

This application relates to the technical field of electrical plugs, and in particular to a foldable plug. By enabling the pin assembly to rotate relative to the plug body, the pin assembly can be rotated between a first position and a second position. When the pin assembly is in the first position, the pin assembly is self-locked by a self-locking device, so that the pin assembly stays stably in the first position; when the pin assembly is in the second position, the pin assembly is self-locked by the self-locking device, so that the pin assembly stays stably in the second position. Among them, the first position can correspond to the working position of the pin assembly, that is, when the pin assembly rotates to the first position, the foldable plug can work normally; the second position can correspond to the folding position of the pin assembly, that is, when the pin assembly rotates to the second position, the foldable plug is in a folded state, thereby reducing the occupied space of the foldable plug and facilitating the storage of the foldable plug. In this way, the pins of the plug can be folded.

Description

Technical Field

[0001] This application relates to the technical field of electrical plugs, and particularly to a foldable plug. Background Art

[0002] A power plug is a commonly used plug-in electrical component, mainly used for plugging in power products.

[0003] However, most of the pins of existing power plugs extend out fixedly and cannot form a reliable folded state. For current foldable plugs, the folded plugs are usually limited by a spring plate combined with a cam structure. After long-term friction, the cam structure will wear, resulting in a reduced limiting effect on the plug. And after long-term operation, the spring plate will also cause a reduction in the elastic effect, thus reducing the limiting effect on the cam structure.

[0004] It can be seen that how to make the pins of the plug foldable is a technical problem to be solved urgently. Summary of the Invention

[0005] A foldable plug provided by this application aims to solve the technical problem of how to make the pins of the plug foldable in the prior art.

[0006] A foldable plug provided by this application includes:

[0007] A plug body;

[0008] A pin assembly, the pin assembly is installed on the plug body, the pin assembly can rotate relative to the plug body, and the staying positions of the pin assembly include a first position and a second position;

[0009] A self-locking device, the self-locking device is used to form self-locking when the pin assembly is in the first position or the second position, so that the pin assembly stays stably in the first position or the second position.

[0010] Optionally, the self-locking device includes:

[0011] A locking member, the locking member is provided with a locking groove, and the locking groove is provided with a first locking position and a second locking position;

[0012] A limiting member, the limiting member is connected to the pin assembly, the limiting member extends into the locking groove, and during the rotation of the pin assembly between the first position and the second position, the limiting member moves between the first locking position and the second locking position;

[0013] An elastic member, the elastic member is used to provide an elastic force for the limiting member to stay stably in the first locking position or the second locking position.

[0014] Optionally, the self-locking device further includes:

[0015] A rotating member, which is rotatably connected to the pin assembly through the limiting member. The elastic member is sleeved on the rotating member, and one end of the elastic member abuts against the rotating member or the pin assembly;

[0016] An abutting member, which abuts against the other end of the elastic member;

[0017] Wherein, the abutting member is slidably connected to the rotating member;

[0018] The locking groove is further provided with a check position, which is located between the first locking position and the second locking position. The distances from the first locking position and the second locking position to the abutting member are both greater than the distance from the check position to the abutting member.

[0019] Optionally, the abutting member is rotatably installed on the plug body, and the abutting member is provided with a jack, and the rotating member is inserted into the jack.

[0020] Optionally, the foldable plug further includes a linkage assembly, and the linkage assembly is installed on the plug body;

[0021] The pin assembly includes a first pin member and a second pin member, and both the first pin member and the second pin member are rotatably installed on the plug body;

[0022] Both the first pin member and the second pin member are connected to the linkage assembly;

[0023] Wherein, when one of the first pin member and the second pin member rotates, the other of the first pin member and the second pin member rotates simultaneously through the linkage assembly.

[0024] Optionally, the linkage assembly includes:

[0025] A first linkage member, which is rotatably installed on the plug body, and the first linkage member is connected to the first pin member;

[0026] A second linkage member, which is rotatably installed on the plug body, and the second linkage member is meshed and connected to the first linkage member, and the second linkage member is connected to the second pin member.

[0027] Optionally, the first linkage member is provided with a first guiding groove, and the second linkage member is provided with a second guiding groove;

[0028] The locking groove includes a first locking groove and a second locking groove, and the limiting member includes a first limiting member and a second limiting member;

[0029] The first limiting member is connected to the first pin member. One end of the first limiting member extends into the first locking groove, and the end of the first limiting member away from the first locking groove extends into the first guiding groove. Both the first locking groove and the first guiding groove guide the first limiting member;

[0030] The second limiting member is connected to the second pin member. One end of the second limiting member extends into the second locking groove, and the end of the second limiting member away from the second locking groove extends into the second guiding groove. Both the second locking groove and the second guiding groove guide the second limiting member.

[0031] Optionally, the first linkage member and the second linkage member are symmetrically arranged.

[0032] Optionally, the rotating member includes a first rotating member and a second rotating member, and the abutting member includes a first abutting member and a second abutting member;

[0033] The elastic member includes a first elastic member and a second elastic member. The first elastic member is sleeved on the first rotating member, and the second elastic member is sleeved on the second rotating member;

[0034] The first rotating member is rotatably connected to the first pin member, and the second rotating member is rotatably connected to the second pin member;

[0035] One end of the first elastic member abuts against the first rotating member or the first pin member, and the other end of the first elastic member abuts against the first abutting member;

[0036] One end of the second elastic member abuts against the second rotating member or the second pin member, and the other end of the second elastic member abuts against the second abutting member.

[0037] Optionally, the first abutting member is provided with a first jack, and the second abutting member is provided with a second jack;

[0038] One end of the first rotating member is rotatably connected to the first pin member, and the other end of the first rotating member is inserted into the first jack;

[0039] One end of the second rotating member is rotatably connected to the second pin member, and the other end of the second rotating member is inserted into the second jack;

[0040] One end of the first abutting member is rotatably connected to the plug body, and the other end of the first abutting member is rotatably connected to the first linkage member;

[0041] One end of the second abutting member is rotatably connected to the plug body, and the other end of the second abutting member is rotatably connected to the second linkage member.

[0042] The beneficial effects achieved by this application are as follows: By enabling the pin assembly to rotate relative to the plug body, the pin assembly can rotate between the first position and the second position. When the pin assembly is in the first position, the self-locking device forms self-locking for the pin assembly, so that the pin assembly stably stays in the first position; when the pin assembly is in the second position, the self-locking device forms self-locking for the pin assembly, so that the pin assembly stably stays in the second position. Among them, the first position can correspond to the working position of the pin assembly, that is, when the pin assembly rotates to the first position, the foldable plug can work normally; the second position can correspond to the folding position of the pin assembly, that is, when the pin assembly rotates to the second position, the foldable plug is in a folded state, thereby reducing the occupied space of the foldable plug and facilitating the storage of the foldable plug. In this way, the pins of the plug can be folded. Description of the Drawings

[0043] Figure 1 is a schematic three-dimensional structure diagram of the foldable plug in the embodiment of the present invention;

[0044] Figure 2 is an exploded structure diagram of the foldable plug in the embodiment of the present invention;

[0045] Figure 3 is a schematic diagram of the staying position of the pin assembly of the foldable plug in the embodiment of the present invention;

[0046] Figure 4 is a top view of the foldable plug in a folded state in the embodiment of the present invention;

[0047] Figure 5 is in the embodiment of the present invention Figure 4 a cross-sectional view taken along line A-A in;

[0048] Figure 6 is in the embodiment of the present invention Figure 4 a cross-sectional view taken along line B-B in;

[0049] Figure 7 is a top view of the foldable plug in an intermediate state in the embodiment of the present invention;

[0050] Figure 8 is in the embodiment of the present invention Figure 7 a cross-sectional view taken along line C-C in;

[0051] Figure 9 is in the embodiment of the present invention Figure 7 a cross-sectional view taken along line D-D in;

[0052] Figure 10 is a top view of the foldable plug in a working state in the embodiment of the present invention;

[0053] Figure 11In the embodiments of the present invention Figure 10 is a cross-sectional view taken along line E-E in

[0054] Figure 12 is a cross-sectional view taken along line F-F in Figure 10 the embodiments of the present invention

[0055] Main unit symbol description:

[0056] 100, foldable plug; 10, plug body; 20, pin assembly; 21, first pin member; 22, second pin member; 23, first position; 231, first working position; 232, second working position; 24, second position; 241, first folding position; 242, second folding position; 30, self-locking device; 31, locking groove; 311, first locking groove; 312, second locking groove; 313, first locking position; 3131, first working locking position; 3132, second working locking position; 314, second locking position; 3141, first folding locking position; 3142, second folding locking position; 315, check position; 3151, first check position; 3152, second check position; 32, limiting member; 321, first limiting member; 322, second limiting member; 33, elastic member; 331, first elastic member; 332, second elastic member; 34, rotating member; 341, first rotating member; 342, second rotating member; 35, abutting member; 351, first abutting member; 352, second abutting member; 36, jack; 361, first jack; 362, second jack; 40, linkage assembly; 41, first linkage member; 411, first guide groove; 42, second linkage member; 421, second guide groove. Detailed implementation manners

[0057] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals throughout the drawings denote the same or similar units or units with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention. In addition, it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0058] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "left", "right", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0059] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0060] In the description of the present invention, it should be noted that, unless otherwise clearly defined and limited, the terms "mounted", "connected" and "coupled" should be construed broadly. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection, an electrical connection or a connection capable of mutual communication; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two units or the interaction relationship between two units. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention may be understood according to specific circumstances.

[0061] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0062] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0063] Please refer to Figures 1 to 3, in some embodiments of the present application, a foldable plug 100 proposed by the present application includes: a plug body 10, a pin assembly 20, and a self-locking device 30. The pin assembly 20 is installed on the plug body 10. The pin assembly 20 can rotate relative to the plug body 10. The staying positions of the pin assembly 20 include a first position 23 and a second position 24. The self-locking device 30 is used to form self-locking when the pin assembly 20 is in the first position 23 or the second position 24, so that the pin assembly 20 stays stably in the first position 23 or the second position 24.

[0064] By enabling the pin assembly 20 to rotate relative to the plug body 10, the pin assembly 20 can then rotate between the first position 23 and the second position 24. When the pin assembly 20 is in the first position 23, self-locking is formed on the pin assembly 20 through the self-locking device 30, so that the pin assembly 20 stays stably in the first position 23; when the pin assembly 20 is in the second position 24, self-locking is formed on the pin assembly 20 through the self-locking device 30, so that the pin assembly 20 stays stably in the second position 24. Among them, the first position 23 can correspond to the working position of the pin assembly 20, that is, when the pin assembly 20 rotates to the first position 23, the foldable plug 100 can work normally; the second position 24 can correspond to the folding position of the pin assembly 20, that is, when the pin assembly 20 rotates to the second position 24, the foldable plug 100 is in a folded state, thereby reducing the occupied space of the foldable plug 100 and facilitating the storage of the foldable plug 100. In this way, the pins of the plug can be folded.

[0065] In some embodiments of the present application, the self-locking device 30 includes: a locking member, a limiting member 32, and an elastic member 33. The locking member is provided with a locking groove 31, and the locking groove 31 is provided with a first locking position 313 and a second locking position 314. The limiting member 32 is connected to the pin assembly 20, and the limiting member 32 extends into the locking groove 31. During the rotation of the pin assembly 20 between the first position 23 and the second position 24, the limiting member 32 moves between the first locking position 313 and the second locking position 314. The elastic member 33 is used to provide an elastic force for the limiting member 32 to stay stably in the first locking position 313 or the second locking position 314.

[0066] In some embodiments of the present application, the locking member is integrally formed with the plug body 10.

[0067] When the pin assembly 20 rotates to the first position 23, the limiting member 32 moves to the first locking position 313 driven by the pin assembly 20, and the limiting member 32 is limited by the side wall of the locking groove 31. Under the elastic force of the elastic member 33, the limiting member 32 is prevented from being separated from the limit of the side wall of the locking groove 31, so that the limiting member 32 is stably stayed in the first locking position 313, so that the self-locking device 30 forms a self-locking for the pin assembly 20, so that the pin assembly 20 can stably stay in the first position 23. When the pin assembly 20 rotates to the second position 24, the limiting member 32 moves to the second locking position 314 driven by the pin assembly 20, and the limiting member 32 is limited by the side wall of the locking groove 31. Under the elastic force of the elastic member 33, the limiting member 32 is prevented from being separated from the limit of the side wall of the locking groove 31, so that the limiting member 32 stays stably in the second locking position 314, so that the self-locking device 30 forms a self-locking for the pin assembly 20, so that the pin assembly 20 can stay stably in the second position 24.

[0068] In some embodiments of the present application, the self-locking device 30 further includes: a rotating member 34 and an abutting member 35. The rotating member 34 is rotatably connected to the pin assembly 20 through the limiting member 32, and the elastic member 33 is sleeved on the rotating member 34, and one end of the elastic member 33 abuts against the rotating member 34 or the pin assembly 20. The abutting member 35 abuts against the other end of the elastic member 33. The abutting member 35 is slidably connected to the rotating member 34. The locking groove 31 is also provided with a check position 315, and the check position 315 is located between the first locking position 313 and the second locking position 314, and the distances between the first locking position 313 and the second locking position 314 and the abutting member 35 are greater than the distance between the check position 315 and the abutting member 35.

[0069] The elastic member 33 is sleeved on the rotating member 34, so that the elastic member 33 can rotate with the rotating member 34. One end of the elastic member 33 is in contact with the rotating member 34, and the other end of the elastic member 33 is in contact with the abutting member 35, so that the elastic member 33 is compressed between the rotating member 34 and the abutting member 35, so that the rotating member 34 and the abutting member 35 tend to separate from each other.

[0070] Since the limiting member 32 and the rotating member 34 are both connected to the pin assembly 20, the limiting member 32 and the rotating member 34 move during the rotation of the pin assembly 20. Since the limiting member 32 extends into the locking groove 31, the limiting member 32 moves with the rotation of the pin assembly 20 under the guidance of the locking groove 31. The rotating member 34 is rotationally connected to the pin assembly 20 through the limiting member 32, and the rotating member 34 is slidably connected to the abutting member 35. Therefore, the rotating member 34 rotates around the limiting member 32 with the rotation of the pin assembly 20, and slides relative to the abutting member 35.

[0071] Since the distances between the first locking position 313 and the second locking position 314 to the abutting member 35 are both greater than the distance from the check position 315 to the abutting member 35, when the limiting member 32 is at the first locking position 313 or the second locking position 314, the compression amount of the elastic member 33 is less than that when the limiting member 32 is at the check position 315. That is, when the limiting member 32 is at the first locking position 313 or the second locking position 314, the elastic force generated by the elastic member 33 is less than the elastic force generated by the elastic member 33 when the limiting member 32 is at the check position 315. When the limiting member 32 is at the first locking position 313, it is difficult for the limiting member 32 to move towards the check position 315 under the action of the elastic force of the elastic member 33 and the frictional force of the side wall of the locking groove 31, so that the limiting member 32 stably stays at the first locking position 313. Since the limiting member 32 is connected to the pin assembly 20, when the limiting member 32 stably stays at the first locking position 313, the pin assembly 20 stably stays at the first position 23, thus realizing the self-locking of the pin assembly 20. When the limiting member 32 is at the second locking position 314, it is difficult for the limiting member 32 to move towards the check position 315 under the action of the elastic force of the elastic member 33 and the frictional force of the side wall of the locking groove 31, so that the limiting member 32 stably stays at the second locking position 314. Since the limiting member 32 is connected to the pin assembly 20, when the limiting member 32 stably stays at the second locking position 314, the pin assembly 20 stably stays at the second position 24, thus realizing the self-locking of the pin assembly 20.

[0072] In some embodiments of the present application, the shape of the locking groove 31 is arc-shaped, the center of the locking groove 31 coincides with the rotation center axis of the pin assembly 20, the first locking position 313 is located at one end of the locking groove 31, the second locking position 314 is located at the other end of the locking groove 31, the check position 315 is located at a preset position on the arc section of the locking groove 31, the abutting member 35 is located outside the arc section of the locking groove 31, and the elastic force direction of the elastic member 33 points to the inside of the arc section of the locking groove 31.

[0073] Since the elastic force direction of the elastic member 33 points to the inside of the arc section of the locking groove 31, both the limiting member 32 and the pin assembly 20 tend to move towards the inside of the arc section of the locking groove 31. Since the limiting member 32 extends into the locking groove 31, when the limiting member 32 is at the first locking position 313, the limiting member 32 is blocked by the side wall of the locking groove 31. Then, under the combined action of the elastic force of the elastic member 33 and the side wall of the locking groove 31, the limiting member 32 stably stays at the first locking position 313, and then the pin assembly 20 stably stays at the first position 23, realizing the self-locking of the pin assembly 20.

[0074] Since the moving mode of the pin assembly 20 is rotation, and the limiting member 32 is connected to the pin assembly 20, the moving track of the limiting member 32 is an arc with the rotation center of the pin assembly 20 as the center of a circle. Under the action of an external force, the pin assembly 20 rotates from the first position 23 to the second position 24, and the limiting member 32 moves from the first locking position 313 to the second locking position 314 along with the pin assembly 20. During the process of the limiting member 32 moving between the first locking position 313 and the second locking position 314, the limiting member 32 passes through the anti - reverse position 315. Since the distances from both the first locking position 313 and the second locking position 314 to the abutting member 35 are greater than the distance from the anti - reverse position 315 to the abutting member 35, during the process of the limiting member 32 moving from the first locking position 313 to the second locking position 314, the compression amount of the elastic member 33 first increases and then decreases. When the limiting member 32 reaches the anti - reverse position 315, the compression amount of the elastic member 33 is the largest. Therefore, the elastic force of the elastic member 33 first increases and then decreases, and when the limiting member 32 reaches the anti - reverse position 315, the elastic force of the elastic member 33 is the largest. By applying an external force, the pin assembly 20 overcomes the elastic force of the elastic member 33, and then the pin assembly 20 rotates from the first position 23 to the second position 24. In this way, the unlocking and folding of the pin assembly 20 are realized. When no external force is applied, the limiting member 32 stably stays at the first locking position 313 under the action of the elastic force of the elastic member 33, and then the pin assembly 20 stably stays at the first position 23. That is, the pin assembly 20 realizes self - locking through the elastic member 33, ensuring the stability of the pin assembly 20 staying at the first position 23.

[0075] Additionally, the process and principle of the pin assembly 20 rotating from the second position 24 to the first position 23 and the pin assembly 20 stably staying at the second position 24 are the same as those of the pin assembly 20 rotating from the first position 23 to the second position 24 and the pin assembly 20 stably staying at the first position 23, so they will not be elaborated here. The elastic member 33 enables the pin assembly 20 to realize self - locking, ensuring the stability of the pin assembly 20 staying at the second position 24.

[0076] In some embodiments of the present application, the elastic member 33 includes a spring, and the shape of the rotating member 34 is rod - shaped. The rotating member 34 and the pin assembly 20 are rotationally connected with the limiting member 32 as the connecting shaft, and the elastic member 33 is sleeved on the rotating member 34. One end of the elastic member 33 abuts against the rotating member 34, and the other end of the elastic member 33 abuts against the abutting member 35. The elastic member 33 is in an elastically compressed state between the rotating member 34 and the abutting member 35. The rotating member 34 is slidably connected to the abutting member 35.

[0077] When the pin assembly 20 is in the first position 23, the limiting member 32 is farther away from the abutting member 35, and at this time, the elastic deformation amount of the elastic member 33 is smaller. During the process that the pin assembly 20 rotates from the first position 23 to the second position 24 under the action of an external force, the limiting member 32 first reaches the anti - return position 315 from the first locking position 313 and then reaches the second locking position 314. Since the distance from the first locking position 313 to the abutting member 35 is greater than the distance from the anti - return position 315 to the abutting member 35, therefore, during the process that the limiting member 32 moves from the first locking position 313 to the anti - return position 315, the limiting member 32 approaches the abutting member 35. Also, the limiting member 32 is connected to the rotating member 34, and one end of the elastic member 33 abuts against the rotating member 34. Therefore, during the process that the limiting member 32 approaches the abutting member 35, the part of the elastic member 33 that abuts against the rotating member 34 approaches the abutting member 35 together with the limiting member 32. Also, the other end of the elastic member 33 abuts against the abutting member 35. Therefore, when one end of the elastic member 33 approaches the abutting member 35, the other end of the elastic member 33 is restricted by the abutting member 35, thereby further compressing the elastic member 33, and thus increasing the elastic force of the elastic member 33. Due to the application of the external force, the elastic force of the elastic member 33 can be overcome, so that the limiting member 32 moves from the first locking position 313 to the anti - return position 315, thereby realizing the unlocking of the pin assembly 20. When the limiting member 32 passes over the anti - return position 315, the limiting member 32 moves towards the second locking position 314. Since the distance from the second locking position 314 to the abutting member 35 is greater than the distance from the anti - return position 315 to the abutting member 35, therefore, during the process that the limiting member 32 moves from the anti - return position 315 to the second locking position 314, the limiting member 32 gradually moves away from the abutting member 35. Also, the limiting member 32 is connected to the rotating member 34, and one end of the elastic member 33 abuts against the rotating member 34. Therefore, during the process that the limiting member 32 moves away from the abutting member 35, the part of the elastic member 33 that abuts against the rotating member 34 moves away from the abutting member 35 together with the limiting member 32, thereby reducing the compression amount of the elastic member 33, and thus reducing the elastic force of the elastic member 33. After the limiting member 32 moves to the second locking position 314, an external force at least greater than the elastic force of the elastic member 33 needs to be applied to make the limiting member 32 move from the second locking position 314 towards the anti - return position 315, and then the elastic member 33 applies an elastic force to make the limiting member 32 stably stay at the second locking position 314. When the limiting member 32 reaches the second locking position 314, the pin assembly 20 reaches the second position 24, and the elastic member 33 makes the limiting member 32 stably stay at the second locking position 314 through the elastic force, thereby making the pin assembly 20 self - lock at the second position 24, thus realizing the self - locking of the pin assembly 20.

[0078] By making the rotating member 34 slide - connected to the abutting member 35, the rotating member 34 slides relative to the abutting member 35 under the guidance of the abutting member 35, so that the elastic member 33 can be compressed between the rotating member 34 and the abutting member 35, ensuring the effectiveness of the self - locking function of the self - locking device 30.

[0079] In some embodiments of the present application, the abutting member 35 is rotatably mounted on the plug body 10. The abutting member 35 is provided with a jack 36, and the rotating member 34 is inserted into the jack 36.

[0080] Insert the rotating member 34 into the jack 36 provided in the abutting member 35, so that the rotating member 34 is slidably connected to the abutting member 35. By rotatably mounting the abutting member 35 on the plug body 10, during the rotation of the rotating member 34 with the pin assembly 20, the abutting member 35 rotates with the rotating member 34, thus preventing the abutting member 35 from interfering with the rotation of the rotating member 34. And the hole wall of the jack 36 guides and positions the rotating member 34, so that the rotating member 34 rotates around the rotation center axis of the abutting member 35, ensuring the directionality of the rotation of the rotating member 34 and making the folding process of the foldable plug 100 smoother and more reliable.

[0081] In some embodiments of the present application, the foldable plug 100 further includes a linkage assembly 40, and the linkage assembly 40 is mounted on the plug body 10. The pin assembly 20 includes a first pin member 21 and a second pin member 22, and both the first pin member 21 and the second pin member 22 are rotatably mounted on the plug body 10. Both the first pin member 21 and the second pin member 22 are connected to the linkage assembly 40. Wherein, when one of the first pin member 21 and the second pin member 22 rotates, the other of the first pin member 21 and the second pin member 22 rotates simultaneously through the linkage assembly 40.

[0082] By setting the pin assembly 20 as the first pin member 21 and the second pin member 22, the foldable plug 100 is formed into a two-pin plug. By the linkage assembly 40, the first pin member 21 and the second pin member 22 rotate simultaneously. Thus, during the folding process of the foldable plug 100, only by rotating at least one of the first pin member 21 and the second pin member 22, the folding of the foldable plug 100 can be realized, making the folding process of the foldable plug 100 more convenient.

[0083] In some embodiments of the present application, the linkage assembly 40 includes: a first linkage member 41 and a second linkage member 42. The first linkage member 41 is rotatably mounted on the plug body 10, and the first linkage member 41 is connected to the first pin member 21. The second linkage member 42 is rotatably mounted on the plug body 10, the second linkage member 42 is meshed and connected to the first linkage member 41, and the second linkage member 42 is connected to the second pin member 22.

[0084] The first pin member 21 and the second pin member 22 are both rotatably mounted on the plug body 10. During the process of applying an external force to rotate the first pin member 21, the first pin member 21 drives the first linkage member 41 to rotate relative to the plug body 10. Then, through the meshing action, the first linkage member 41 drives the second linkage member 42 to rotate, and then the second linkage member 42 drives the second pin member 22. In this way, the first pin member 21 and the second pin member 22 are synchronously rotated through the linkage assembly 40. The synchronous rotation of the first linkage member 41 and the second linkage member 42 is achieved through the meshing action, so as to ensure the synchronism of the actions of the first linkage member 41 and the second linkage member 42, and ensure the structural strength of the structure of the linkage assembly 40, and further ensure the reliability of the synchronous rotation of the first pin member 21 and the second pin member 22.

[0085] In some embodiments of the present application, the first linkage member 41 is provided with a first guiding groove 411, and the second linkage member 42 is provided with a second guiding groove 421. The locking groove 31 includes a first locking groove 311 and a second locking groove 312, and the limiting member 32 includes a first limiting member 321 and a second limiting member 322. The first limiting member 321 is connected to the first pin member 21. One end of the first limiting member 321 extends into the first locking groove 311, and the end of the first limiting member 321 away from the first locking groove 311 extends into the first guiding groove 411. Both the first locking groove 311 and the first guiding groove 411 guide the first limiting member 321. The second limiting member 322 is connected to the second pin member 22. One end of the second limiting member 322 extends into the second locking groove 312, and the end of the second limiting member 322 away from the second locking groove 312 extends into the second guiding groove 421. Both the second locking groove 312 and the second guiding groove 421 guide the second limiting member 322.

[0086] Apply an external force to rotate the first pin member 21, and then drive the first limiting member 321 to move in the first locking groove 311 through the first pin member 21. Also, the first guiding groove 411 guides the first limiting member 321, and the first linkage member 41 is rotatably installed on the plug body 10. Therefore, during the movement of the first limiting member 321 in the first locking groove 311, the first limiting member 321 drives the first linkage member 41 to rotate relative to the plug body 10 by pressing against the side wall of the first guiding groove 411. During the rotation of the first linkage member 41, the second linkage member 42 is driven to rotate synchronously through meshing. Since the second limiting member 322 extends into the second guiding groove 421 and the second guiding groove 421 guides the second limiting member 322, during the rotation of the second linkage member 42, the second linkage member 42 presses against the second limiting member 322 through the inner wall of the second guiding groove 421, thereby driving the second limiting member 322 to move. Also, the second limiting member 322 is connected to the second pin member 22, and the second pin member 22 is rotatably installed on the plug body 10. Therefore, during the movement of the second limiting member 322, the second pin member 22 is driven to rotate. In this way, when the first pin member 21 is rotated, the second pin assembly 20 is driven to rotate synchronously with the first pin assembly 20 through the linkage assembly 40. By rotating at least one of the first pin member 21 and the second pin member 22, the folding of the foldable plug 100 can be achieved, making the folding process of the foldable plug 100 more convenient.

[0087] The first locking groove 311 guides one end of the first limiting member 321, the first guiding groove 411 guides the other end of the first limiting member 321, the second locking groove 312 guides one end of the second limiting member 322, and the second guiding groove 421 guides the other end of the second limiting member 322, so that the first limiting member 321 and the second limiting member 322 are more evenly stressed during the movement, avoiding jamming during the rotation of the first pin member 21 and the second pin member 22, and improving the smoothness of the folding process of the foldable plug 100.

[0088] Similarly, rotating the second pin member 22 can also cause the first pin member 21 to rotate synchronously with the second pin member 22 in the same way. The rotation process and principle are the same as those of the first pin member 21 driving the second pin member 22 to rotate synchronously, so they will not be elaborated here.

[0089] In some embodiments of the present application, the first linkage member 41 and the second linkage member 42 are symmetrically arranged.

[0090] By symmetrically arranging the first linkage 41 and the second linkage 42, the force-bearing conditions of the first linkage 41 and the second linkage 42 are made closer, and thus the forces on the structures within the foldable plug 100 are more evenly distributed. The first linkage 41 and the second linkage 42 are symmetrically arranged, and the transmission mode between the first linkage 41 and the second linkage 42 is meshing transmission. Therefore, the rotation directions of the first linkage 41 and the second linkage 42 are opposite. Thus, the synchronous rotation directions of the first pin member 21 and the second pin member 22 are opposite, that is, when the first pin member 21 rotates towards the inside of the foldable plug 100, the second pin member 22 also rotates towards the inside of the foldable plug 100. At this time, the first pin member 21 and the second pin member 22 approach each other; when the first pin member 21 rotates towards the outside of the foldable plug 100, the second pin member 22 also rotates towards the outside of the foldable plug 100. At this time, the first pin member 21 and the second pin member 22 separate from each other.

[0091] In some embodiments of the present application, the rotating member 34 includes a first rotating member 341 and a second rotating member 342, and the abutting member 35 includes a first abutting member 351 and a second abutting member 352. The first rotating member 341 is rotatably connected to the first pin member 21, and the second rotating member 342 is rotatably connected to the second pin member 22. The elastic member 33 includes a first elastic member 331 and a second elastic member 332. The first elastic member 331 is sleeved on the first rotating member 341, and the second elastic member 332 is sleeved on the second rotating member 342. One end of the first elastic member 331 abuts against the first rotating member 341 or the first pin member 21, and the other end of the first elastic member 331 abuts against the first abutting member 351. One end of the second elastic member 332 abuts against the second rotating member 342 or the second pin member 22, and the other end of the second elastic member 332 abuts against the second abutting member 352.

[0092] Since the two ends of the first elastic member 331 respectively abut against the first rotating member 341 and the first abutting member 351, therefore, self-locking of the first pin member 21 can be formed by the elastic force of the first elastic member 331. An external force is applied to rotate the first pin member 21 relative to the plug body 10, thereby driving the first rotating member 341 to rotate. During the rotation of the first pin member 21, the external force overcomes the elastic force of the first elastic member 331, thereby realizing the unlocking of the first pin member 21. During the rotation of the first pin member 21, the second pin member 22 is driven to rotate by the linkage assembly 40. During the rotation of the second pin member 22, the external force overcomes the elastic force of the second elastic member 332, thereby realizing the unlocking of the second pin member 22. Since the first pin member 21 and the second pin member 22 rotate synchronously under the drive of the linkage assembly 40, therefore, by applying an external force to at least one of the first pin member 21 or the second pin member 22, synchronous unlocking of the first pin member 21 and the second pin member 22 can be achieved.

[0093] In some embodiments of the present application, the first position 23 includes a first working position 231 and a second working position 232, the second position 24 includes a first folding position 241 and a second folding position 242, the first locking position 313 includes a first working locking position 3131 and a second working locking position 3132, the second locking position 314 includes a first folding locking position 3141 and a second folding locking position 3142, and the check position 315 includes a first check position 3151 and a second check position 3152. The first working position 231 and the second folding position 242 are the staying positions of the first pin member 21, and the second working position 232 and the second folding position 242 are the staying positions of the second pin member 22. The first working locking position 3131, the first check position 3151, and the first folding locking position 3141 are provided in the first locking groove 311, and the second working locking position 3132, the second check position 3152, and the second folding locking position 3142 are provided in the second locking groove 312. The distances from the first working locking position 3131 and the first folding locking position 3141 to the first abutting member 351 assembly are both greater than the distance from the first check position 3151 to the first abutting member 351. The distances from the second working locking position 3132 and the second folding locking position 3142 to the second abutting member 352 assembly are both greater than the distance from the second check position 3152 to the second abutting member 352. The first limiting member 321 passes through the first check position 3151 during the movement between the first working locking position 3131 and the first folding locking position 3141. The second limiting member 322 passes through the second check position 3152 during the movement between the second working locking position 3132 and the second folding locking position 3142. When the first pin member 21 reaches the first working position 231, the first limiting member 321 reaches the first working locking position 3131; when the first pin member 21 reaches the first folding position 241, the first limiting member 321 reaches the first folding locking position 3141. When the second pin member 22 reaches the second working position 232, the second limiting member 322 reaches the second working locking position 3132; when the second pin member 22 reaches the second folding position 242, the second limiting member 322 reaches the second folding locking position 3142.

[0094] When the first pin member 21 is in the first working position 231, the first limiting member 321 is in the first working locking position 3131. At this time, the elastic force of the first elastic member 331 causes the first limiting member 321 to stably stay at the first working locking position 3131, thereby forming a self-locking for the first pin member 21. Apply an external force to rotate the first pin member 21 in the direction towards the first folding position 241, and then drive the first limiting member 321 to move in the direction towards the first folding locking position 3141. Also, the distances from both the first working locking position 3131 and the first folding locking position 3141 to the first abutting member 351 assembly are greater than the distance from the first check position 3151 to the first abutting member 351. Therefore, when the first limiting member 321 moves from the first working locking position 3131 towards the first check position 3151, the compression amount of the first elastic member 331 gradually increases. Without applying an external force, the first limiting member 321 cannot leave the first working locking position 3131, and thus forms a self-locking for the first pin member 21 through the first elastic member 331. When the first limiting member 321 passes the first check position 3151 and reaches the first folding locking position 3141, the first pin member 21 reaches the first folding position 241. When the first limiting member 321 reaches the first folding position 241, since the distances from both the first working locking position 3131 and the first folding locking position 3141 to the first abutting member 351 assembly are greater than the distance from the first check position 3151 to the first abutting member 351, when the first limiting member 321 moves from the first folding locking position 3141 towards the first check position 3151, the compression amount of the first elastic member 331 gradually increases. Without applying an external force, the first limiting member 321 cannot leave the first folding locking position 3141, and thus forms a self-locking for the first pin member 21 through the first elastic member 331.

[0095] During the process of the first pin member 21 rotating from the first working position 231 to the first folding position 241, the second pin member 22 is driven by the linkage assembly 40 to rotate synchronously with the first pin member 21. At this time, the second pin member 22 rotates from the second working position 232 to the second folding position 242.

[0096] When the second pin member 22 is located at the second working position 232, the second limiting member 322 is located at the second working locking position 3132. At this time, the elastic force of the second elastic member 332 causes the second limiting member 322 to stably stay at the second working locking position 3132, thereby forming a self-locking for the second pin member 22. An external force is applied to rotate the second pin member 22 in the direction towards the second folding position 242, thereby driving the second limiting member 322 to move in the direction towards the second folding locking position 3142. Also, the distances from both the second working locking position 3132 and the second folding locking position 3142 to the second abutting member 352 assembly are greater than the distance from the second non-return position 3152 to the second abutting member 352. Therefore, when the second limiting member 322 moves from the second working locking position 3132 towards the second non-return position 3152, the compression amount of the second elastic member 332 gradually increases. Without applying an external force, the second limiting member 322 cannot leave the second working locking position 3132, and thus forms a self-locking for the second pin member 22 through the second elastic member 332. When the second limiting member 322 passes over the second non-return position 3152 and reaches the second folding locking position 3142, the second pin member 22 reaches the second folding position 242. After the second limiting member 322 reaches the second folding position 242, since the distances from both the second working locking position 3132 and the second folding locking position 3142 to the second abutting member 352 assembly are greater than the distance from the second non-return position 3152 to the second abutting member 352, when the second limiting member 322 moves from the second folding locking position 3142 towards the second non-return position 3152, the compression amount of the second elastic member 332 gradually increases. Without applying an external force, the second limiting member 322 cannot leave the second folding locking position 3142, and thus forms a self-locking for the second pin member 22 through the second elastic member 332.

[0097] In some embodiments of the present application, the first abutting member 351 is provided with a first jack 361, and the second abutting member 352 is provided with a second jack 362. One end of the first rotating member 341 is rotatably connected to the first pin member 21, and the other end of the first rotating member 341 is inserted into the first jack 361. One end of the second rotating member 342 is rotatably connected to the second pin member 22, and the other end of the second rotating member 342 is inserted into the second jack 362. One end of the first abutting member 351 is rotatably connected to the plug body 10, and the other end of the first abutting member 351 is rotatably connected to the first linkage member 41. One end of the second abutting member 352 is rotatably connected to the plug body 10, and the other end of the second abutting member 352 is rotatably connected to the second linkage member 42.

[0098] Apply an external force to rotate the first pin member 21, and then drive the first rotating member 341 to rotate under the guidance of the side wall of the first insertion hole 361 of the first abutting member 351 through the first pin member 21. By rotatably connecting one end of the first abutting member 351 to the plug body 10 and rotatably connecting the other end of the first abutting member 351 to the first linkage member 41, the first abutting member 351 can rotate synchronously with the first rotating member 341, and the two ends of the first abutting member 351 can be stressed, making the force on the first abutting member 351 more uniform and avoiding jamming during the rotation of the first pin member 21. During the rotation of the first pin member 21, the second pin member 22 is driven to rotate synchronously with the first pin member 21 through the linkage assembly 40. During the rotation of the second pin member 22, the second rotating member 342 is driven to rotate under the guidance of the side wall of the second insertion hole 362 of the second abutting member 352. By rotatably connecting one end of the second abutting member 352 to the plug body 10 and rotatably connecting the other end of the second abutting member 352 to the second linkage member 42, the second abutting member 352 can rotate synchronously with the second rotating member 342, and the two ends of the second abutting member 352 can be stressed, making the force on the second abutting member 352 more uniform and avoiding jamming during the rotation of the second pin member 22.

[0099] Please refer to Figures 4 to 12 , in some application scenarios of the present application, the foldable plug 100 includes a plug body 10, a first pin member 21, a second pin member 22, a self-locking device 30 and a linkage assembly 40.

[0100] The self-locking device 30 includes a first limiting member 321, a second limiting member 322, a first elastic member 331, a second elastic member 332, a first rotating member 341, a second rotating member 342, a first abutting member 351 and a second abutting member 352. The linkage assembly 40 includes a first linkage member 41 and a second linkage member 42.

[0101] A first locking groove 311 and a second locking groove 312 are formed on one side of the plug body 10. The first abutting member 351 is provided with a first insertion hole 361, and the second abutting member 352 is provided with a second insertion hole 362. The first linkage member 41 is provided with a first guiding groove 411, and the second linkage member 42 is provided with a second guiding groove 421.

[0102] The first pin member 21 and the second pin member 22 are both rotatably mounted on the plug body 10, and the first pin member 21 and the second pin member 22 both face the same side of the plug body 10. The staying positions of the first pin member 21 include a first working position 231 and a first folding position 241, and the staying positions of the second pin member 22 include a second working position 232 and a second folding position 242. The shapes of the first locking groove 311 and the second locking groove 312 are both arc-shaped. The rotation center axis of the first pin member 21 coincides with the center of the circle of the first locking groove 311, and the rotation center axis of the second pin member 22 coincides with the center of the circle of the second locking groove 312. The first locking groove 311 is provided with a first working locking position 3131, a first anti-return position 3151, and a first folding locking position 3141. The first working locking position 3131 is located at one end of the first locking groove 311, the first folding locking position 3141 is located at the other end of the first locking groove 311, and the first anti-return position 3151 is located at a preset position on the arc section of the first locking groove 311. The second locking groove 312 is provided with a second working locking position 3132, a second anti-return position 3152, and a second folding locking position 3142. The second working locking position 3132 is located at one end of the second locking groove 312, the second folding locking position 3142 is located at the other end of the second locking groove 312, and the second anti-return position 3152 is located at a preset position on the arc section of the second locking groove 312.

[0103] The first limiting member 321 is fixedly connected to the first pin member 21. One end of the first limiting member 321 extends into the first locking groove 311, and the other end of the first limiting member 321 extends into the first guiding groove 411. The side walls of the first locking groove 311 and the first guiding groove 411 both guide the first limiting member 321. When the first pin member 21 is in the first working position 231, the first limiting member 321 is located at the first working locking position 3131; when the first pin member 21 is in the first folding position 241, the first limiting member 321 is located at the first folding locking position 3141. The functional end of the first pin member 21 and the first limiting member 321 are respectively located on both sides of the rotation center of the first pin member 21.

[0104] The second limiting member 322 is fixedly connected to the second pin member 22. One end of the second limiting member 322 extends into the second locking groove 312, and the other end of the second limiting member 322 extends into the second guiding groove 421. The side walls of the second locking groove 312 and the second guiding groove 421 both guide the second limiting member 322. When the second pin member 22 is in the second working position 232, the second limiting member 322 is located at the second working locking position 3132; when the second pin member 22 is in the second folding position 242, the second limiting member 322 is located at the second folding locking position 3142. The functional end of the second pin member 22 and the second limiting member 322 are respectively located on both sides of the rotation center of the second pin member 22.

[0105] One end of the first abutment member 351 is rotationally connected to the plug body 10, and the other end of the first abutment member 351 is rotationally connected to the first linkage member 41. The first abutment member 351 is located outside the arc segment of the first locking groove 311. The distances from the first working locking position 3131 and the first folding locking position 3141 to the first abutment member 351 are greater than the distance from the first check position 3151 to the first abutment member 351. The first limit member 321 passes through the first check position 3151 during the movement between the first working locking position 3131 and the first folding locking position 3141. One end of the second abutment member 352 is rotationally connected to the plug body 10, and the other end of the second abutment member 352 is rotationally connected to the second linkage member 42. The second abutment member 352 is located outside the arc segment of the second locking groove 312. The distances between the second working locking position 3132 and the second folding locking position 3142 and the second abutting member 352 are greater than the distance between the second non-return position 3152 and the second abutting member 352. The second limiting member 322 passes through the second non-return position 3152 during the movement between the second working locking position 3132 and the second folding locking position 3142.

[0106] One end of the first rotating member 341 is rotatably connected to the first pin member 21 through the first stopper 321, and the other end of the first rotating member is inserted into the first insertion hole 361. The first elastic member 331 is sleeved on the first rotating member 341, one end of the first elastic member 331 abuts against the first rotating member 341 or the first pin member 21, and the other end of the first elastic member 331 abuts against the first abutting member 351. One end of the second rotating member 342 is rotatably connected to the second pin member 22 through the second stopper 322, and the other end of the second rotating member is inserted into the second insertion hole 362. The second elastic member 332 is sleeved on the second rotating member 342, one end of the second elastic member 332 abuts against the second rotating member 342 or the second pin member 22, and the other end of the second elastic member 332 abuts against the second abutting member 352. The elastic force direction of the first elastic member 331 points to the inner side of the arc section of the first locking groove 311 , and the elastic force direction of the second elastic member 332 points to the inner side of the arc section of the second locking groove 312 .

[0107] The first linkage member 41 is meshed and connected with the second linkage member 42. The first linkage member 41 and the second linkage member 42 are both rotatably mounted on the plug body.

[0108] It should be pointed out that the inner side of the arc segment is the side of the arc segment facing the center of the arc, and the outer side of the arc segment is the side of the arc segment away from the center of the arc.

[0109] It is understandable that when the first pin member 21 is located at the first working position 231 , the first limiting member 321 is located at the first working locking position 3131 , and at this time, the second pin member 22 is located at the second working position 232 , and the second limiting member 322 is located at the second working locking position 3132 .

[0110] When the first limiting member 321 is located at the first working locking position 3131, under the action of the elastic force of the first elastic member 331, the first rotating member 341 has a tendency to move towards the inner side of the arc section of the first locking groove 311. Also, the first rotating member 341 is rotationally connected to the first pin member 21 through the first limiting member 321, and the first limiting member 321 extends into the first locking groove 311. Therefore, at this time, the first limiting member 321 is blocked by the side wall of the first locking groove 311, and then under the action of the first elastic member 331 and the side wall of the first locking groove 311, the first limiting member 321 stably stays at the first working locking position 3131. Similarly, when the second limiting member 322 is located at the second working locking position 3132, under the action of the elastic force of the second elastic member 332, the second rotating member 342 has a tendency to move towards the inner side of the arc section of the second locking groove 312. Also, the second rotating member 342 is rotationally connected to the second pin member 22 through the second limiting member 322, and the second limiting member 322 extends into the second locking groove 312. Therefore, at this time, the second limiting member 322 is blocked by the side wall of the second locking groove 312, and then under the action of the second elastic member 332 and the side wall of the second locking groove 312, the second limiting member 322 stably stays at the second working locking position 3132.

[0111] Apply an external force to the first pin member 21 to make the first pin member 21 rotate from the first working position 231 to the first folding position 241. At this time, the first limiting member 321 moves from the first working locking position 3131 to the first folding locking position 3141 under the drive of the first pin member 21. Since the first rotating member 341 is rotationally connected to the first pin through the first limiting member 321, during the process of the first limiting member 321 moving from the first working locking position 3131 to the first folding locking position 3141, the first rotating member 341 rotates around the rotation center of the first abutting member 351 under the drive of the first limiting member 321. Also, the distances between the first working locking position 3131 and the first folding locking position 3141 to the first abutting member 351 are both greater than the distance between the first anti-return position 3151 and the first abutting member 351. Therefore, during the process of the first limiting member 321 moving from the first working locking position 3131 to the first anti-return position 3151 and from the first anti-return position 3151 to the first folding locking position 3141, the first rotating member 341 slides relative to the first abutting member 351 under the guidance of the hole wall of the first jack 361.

[0112] Since the distance between the first working locking position 3131 and the first abutting member 351 is greater than the distance between the first check position 3151 and the first abutting member 351, during the movement of the first limiting member 321 from the first working locking position 3131 to the first check position 3151, the first limiting member 321 approaches the first abutting member 351. At this time, the abutting portion of the first elastic member 331 and the first rotating member 341 also approaches the first abutting member 351, thereby compressing the first elastic member 331 and increasing the elastic force of the first elastic member 331. Therefore, without the application of an external force, the first limiting member 321 stably stays at the first working locking position 3131 under the elastic force of the first elastic member 331. Only by applying an external force can the elastic force of the first elastic member 331 be overcome to make the first limiting member 321 leave the first working locking position 3131. In this way, the stability of the first limiting member 321 staying at the first working locking position 3131 is improved, and further, the first pin member 21 can stay more stably at the first working position 231, ensuring the reliability of the self-locking function of the foldable plug 100.

[0113] Since the distance between the first folding locking position 3141 and the first abutting member 351 is greater than the distance between the first check position 3151 and the first abutting member 351, during the process of the first limiting member 321 crossing the first check position 3151 and moving towards the first folding locking position 3141, the first limiting member 321 moves away from the first abutting member 351. At this time, the abutting portion of the first elastic member 331 and the first rotating member 341 also moves away from the first abutting member 351, thereby causing the first elastic member 331 to elongate under its own elastic force and reducing the elastic force of the first elastic member 331. After the first pin member 21 reaches the first folding position 241, the first limiting member 321 reaches the first folding locking position 3141. After the first limiting member 321 reaches the first folding locking position 3141, without the application of an external force, the first limiting member 321 stably stays at the first folding locking position 3141 under the elastic force of the first elastic member 331. Only by applying an external force can the elastic force of the first elastic member 331 be overcome to make the first limiting member 321 leave the first folding locking position 3141. In this way, the stability of the first limiting member 321 staying at the first folding locking position 3141 is improved, and further, the first pin member 21 can stay more stably at the first folding position 241, ensuring the reliability of the self-locking function of the foldable plug 100.

[0114] In this way, the first limiting member 321 stably stays at the first working locking position 3131 or the first folding locking position 3141 under the action of the first elastic member 331, and further, the first pin member 21 stably stays at the first working position 231 or the first working position 231, thereby enabling the first pin member 21 to form a self-lock.

[0115] Similarly, under the action of the second elastic member 332, the second limiting member 322 stably stays at the second working locking position 3132 or the second folding locking position 3142, and further enables the second pin member 22 to stably stay at the second working position 232 or the second working position 232, thereby forming self-locking for the second pin member 22. The self-locking process and principle of the second pin member 22 are the same as those of the first pin member 21, so they will not be elaborated here.

[0116] During the process of the first pin member 21 driving the first limiting member 321 to move, the first limiting member 321 presses against the side wall of the first guiding groove 411 in the first linkage member 41, and then pushes the first linkage member 41 to rotate relative to the plug body 10. Since the first linkage member 41 is meshed and connected with the second linkage member 42, under the meshing action, the first linkage member 41 drives the second linkage member 42 to rotate. During the rotation of the second linkage member 42, the second limiting member 322 is pushed to move through the side wall of the second guiding groove 421, and then the second pin member 22 is driven by the second limiting member 322 to rotate synchronously with the first pin member 21. Therefore, during the process of the first pin member 21 moving from the first working position 231 to the first folding position 241, the second pin member 22 moves from the second working position 232 to the second folding position 242; during the process of the first pin member 21 moving from the first folding position 241 to the first working position 231, the second pin member 22 moves from the second folding position 242 to the second working position 232.

[0117] Similarly, during the process of the second pin member 22 driving the second limiting member 322 to move, the second limiting member 322 presses against the side wall of the second guiding groove 421 in the second linkage member 42, and then pushes the second linkage member 42 to rotate relative to the plug body 10. Since the first linkage member 41 is meshed and connected with the second linkage member 42, under the meshing action, the second linkage member 42 drives the first linkage member 41 to rotate. During the rotation of the first linkage member 41, the first limiting member 321 is pushed to move through the side wall of the first guiding groove 411, and then the first pin member 21 is driven by the first limiting member 321 to rotate synchronously with the second pin member 22. Therefore, during the process of the second pin member 22 moving from the second working position 232 to the second folding position 242, the first pin member 21 moves from the first working position 231 to the first folding position 241; during the process of the second pin member 22 moving from the second folding position 242 to the second working position 232, the first pin member 21 moves from the first folding position 241 to the first working position 231.

[0118] Thus, due to the cooperation between the first linkage member 41 and the second linkage member 42, and between the first limiting member 321 and the second limiting member 322, applying an external force to at least one of the first pin member 21 and the second pin member 22 can fold the foldable plug 100, improving the user experience and enhancing the reliability and smoothness of the folding process of the foldable plug 100.

[0119] Through the combined action of the plug body 10, the first pin member 21, the second pin member 22, the self-locking device 30, and the linkage assembly 40, the folding and self-locking of the foldable plug 100 can be achieved, and the first pin member 21 and the second pin member 22 of the foldable plug 100 can be synchronously linked, with a compact structure, making the foldable plug 100 occupy less space and facilitating the carrying of the foldable plug 100.

[0120] In the description of this specification, the description with reference to terms such as "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiments or examples. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0121] In addition, the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A foldable plug, characterized in that: include: Plug body; A pin assembly, the pin assembly is mounted on the plug body, the pin assembly can rotate relative to the plug body, and the stop position of the pin assembly includes a first position and a second position; A self-locking device, wherein the self-locking device is used to form a self-locking when the pin assembly is in the first position or the second position, so that the pin assembly can stably stay in the first position or the second position; The self-locking device comprises: A locking member, wherein the locking member is provided with a locking groove, and the locking groove is provided with a first locking position and a second locking position; a limiting member, the limiting member being connected to the pin assembly, the limiting member extending into the locking groove, and the limiting member moving between the first locking position and the second locking position during the rotation of the pin assembly between the first position and the second position; an elastic member, the elastic member being used to provide an elastic force to make the limiting member stably stay in the first locking position or the second locking position; A rotating member, wherein the rotating member is rotatably connected to the pin assembly through the limiting member, the elastic member is sleeved on the rotating member, and one end of the elastic member abuts against the rotating member or the pin assembly; an abutment member, the abutment member abutting against the other end of the elastic member; Wherein, the abutment member is slidably connected to the rotating member; The locking groove is also provided with a check position, which is located between the first locking position and the second locking position, and the distances between the first locking position and the second locking position and the abutment are both greater than the distance from the check position to the abutment.

2. The foldable plug according to claim 1, characterized in that: The abutting member is rotatably mounted on the plug body, and the abutting member is provided with an insertion hole, and the rotating member is inserted into the insertion hole.

3. The foldable plug according to claim 1, characterized in that: The foldable plug further comprises a linkage assembly, wherein the linkage assembly is mounted on the plug body; The pin assembly comprises a first pin member and a second pin member, wherein the first pin member and the second pin member are both rotatably mounted on the plug body; The first pin member and the second pin member are both connected to the linkage assembly; Wherein, when one of the first pin member and the second pin member rotates, the other of the first pin member and the second pin member rotates simultaneously through the linkage assembly.

4. The foldable plug according to claim 3, characterized in that: The linkage components include: a first linkage member, the first linkage member being rotatably mounted on the plug body, the first linkage member being connected to the first pin member; The second linkage member is rotatably mounted on the plug body, the second linkage member is meshed and connected with the first linkage member, and the second linkage member is connected with the second pin member.

5. The foldable plug according to claim 4, characterized in that: The first linkage member is provided with a first guide groove, and the second linkage member is provided with a second guide groove; The locking groove includes a first locking groove and a second locking groove, and the limiting member includes a first limiting member and a second limiting member; The first limiting member is connected to the first pin member, one end of the first limiting member extends into the first locking groove, one end of the first limiting member away from the first locking groove extends into the first guide groove, and the first locking groove and the first guide groove both guide the first limiting member; The second limiting member is connected to the second pin member, one end of the second limiting member extends into the second locking groove, one end of the second limiting member away from the second locking groove extends into the second guide groove, and the second locking groove and the second guide groove both guide the second limiting member.

6. The foldable plug according to claim 4, characterized in that: The first linkage member and the second linkage member are symmetrically arranged.

7. The foldable plug according to claim 4, characterized in that: The rotating member includes a first rotating member and a second rotating member, and the abutting member includes a first abutting member and a second abutting member; The first rotating member is rotatably connected to the first pin member, and the second rotating member is rotatably connected to the second pin member; The elastic member comprises a first elastic member and a second elastic member, the first elastic member is sleeved on the first rotating member, and the second elastic member is sleeved on the second rotating member; One end of the first elastic member abuts against the first rotating member or the first pin member, and the other end of the first elastic member abuts against the first abutting member; One end of the second elastic member abuts against the second rotating member or the second pin member, and the other end of the second elastic member abuts against the second abutting member.

8. The foldable plug according to claim 7, characterized in that: The first abutment member is provided with a first insertion hole, and the second abutment member is provided with a second insertion hole; One end of the first rotating member is rotatably connected to the first pin member, and the other end of the first rotating member is inserted into the first plug hole; One end of the second rotating member is rotatably connected to the second pin member, and the other end of the second rotating member is inserted into the second plug hole; One end of the first abutment member is rotatably connected to the plug body, and the other end of the first abutment member is rotatably connected to the first linkage member; One end of the second abutting member is rotatably connected to the plug body, and the other end of the second abutting member is rotatably connected to the second linkage member.

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