A rotatable plug structure
By designing protrusions on the plug prongs to abut against the mounting base and utilizing the elastic properties of the conductive spring, the problem of the plug prongs not being perpendicular to the contact plane of the socket after rotation is solved, achieving stable electrical contact and improved portability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO TECTAO TECH CO LTD
- Filing Date
- 2025-09-08
- Publication Date
- 2026-07-31
AI Technical Summary
The existing plug prongs are difficult to keep perpendicular to the contact plane of the socket after rotation, resulting in poor mating.
A rotatable plug structure was designed, in which the plug prongs abut against the fixed base through the protrusions to ensure that the plug prongs are perpendicular to the contact plane of the socket when unfolded, and the curved part of the plug prongs contacts the bent part of the conductive spring, using the elastic properties to maintain stable electrical contact.
Ensure that the plug prongs are perpendicular to the contact plane of the socket to achieve stable electrical contact, avoid poor insertion, and improve portability and safety.
Smart Images

Figure CN224582598U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of plug technology and relates to a rotatable plug structure. Background Technology
[0002] With the popularization of electronic devices, power plugs, as key components for power transmission, are widely used in various chargers, adapters and portable electronic products. In order to improve the portability and flexibility of plugs, foldable or rotatable plug structures have gradually become the mainstream design. Such structures can fold the plug prongs into the shell when not in use, reducing the volume and avoiding safety hazards caused by exposed prongs or scratches on bags.
[0003] Currently, in industrial production, products on the market often encounter a situation where, after the plug prongs are rotated, the pressure from the conductive spring causes the prongs to lose their perpendicularity to the mating surface during normal use.
[0004] In summary, although some existing technical solutions have solved the problem of plug storage, there is still considerable room for improvement in ensuring that the plug prongs are perpendicular to the product's mating surface. Summary of the Invention
[0005] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a rotatable plug structure, comprising:
[0006] The outer casing has a receiving cavity and a mounting part, the mounting part connecting the receiving cavity to an external space;
[0007] A fixing base is disposed on the mounting part, and the fixing base is provided with a plug prong, which is rotatably connected to the fixing base;
[0008] The plug prong is provided with a protrusion, the length direction of which is perpendicular to the length direction of the plug prong. When the plug prong rotates, the protrusion can abut against the fixing base.
[0009] In the aforementioned rotatable plug structure, a conductive spring is also included. The conductive spring is connected to the fixed base, and an arc-shaped portion is provided at one end of the plug near the conductive spring, which contacts the conductive spring.
[0010] In the aforementioned rotatable plug structure, the fixing base includes a fixing base and a fixing top cover. The fixing base and the fixing top cover are detachably connected. The fixing base is connected to the outer shell. The conductive spring is disposed between the fixing base and the fixing top cover.
[0011] In the above-described rotatable plug structure, the plug prongs are provided with a rotating shaft, the fixed base is provided with a first limiting part, the fixed top cover is provided with a second limiting part, the protrusion is provided on the rotating shaft, and both the first limiting part and the second limiting part are in contact with the rotating shaft.
[0012] In the above-mentioned rotatable plug structure, the protrusion is provided with a first contact surface, the fixed top cover is provided with a second contact surface, and the fixed base is provided with a product mating surface. The first contact surface is perpendicular to the length direction of the plug piece. When the plug piece is unfolded, the first contact surface and the second contact surface are in contact, and the second contact surface is parallel to the product mating surface.
[0013] In the aforementioned rotatable plug structure, the fixed base is provided with a storage slot, and the plug prongs can be rotatably stored in the storage slot.
[0014] In the aforementioned rotatable plug structure, a fastener is also included. The fixed base is provided with a connecting post, and the fixed top cover is provided with a connecting hole. The fastener passes through the connecting hole to connect with the connecting post, thereby fixing the connection between the fixed top cover and the fixed base.
[0015] In the aforementioned rotatable plug structure, the conductive spring is provided with a bent portion, which contacts the arc-shaped portion.
[0016] In the aforementioned rotatable plug structure, the outer shell includes a first housing and a second housing, which can be joined together to form the receiving cavity.
[0017] In the aforementioned rotatable plug structure, the first housing and the second housing are provided with positioning blocks, the fixed base is provided with positioning grooves, and the positioning blocks are accommodated in the positioning grooves.
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0019] 1. The protrusion on the plug prong extends outward from the body of the plug prong and its length direction is perpendicular to the length direction of the main body of the plug prong. When the user turns the plug prong from the storage position to the use position, the plug prong drives the protrusion to rotate synchronously. The protrusion abuts against the fixing seat to prevent the plug prong from continuing to rotate, thereby ensuring that the plug prong is stably in the unfolded state and ensuring that the plug prong can be perpendicular to the contact plane of the socket.
[0020] 2. By aligning the length of the plug prongs with the mating surface of the product when they are in the unfolded state, it is ensured that the plug prongs are inserted perpendicular to the socket holes, allowing them to enter smoothly and form good point contact.
[0021] 3. The conductive spring is provided with a bent part, which is close to the plug piece. The bent part contacts the arc-shaped part on the plug piece. Utilizing the elastic properties of the conductive spring's metal material, it can generate a continuous elastic recovery force after being deformed by force, thereby ensuring a stable and reliable electrical contact with the arc-shaped part. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of the present invention in its stored state.
[0023] Figure 2 This is a schematic diagram of the structure of the present invention in its unfolded state.
[0024] Figure 3 This is a schematic diagram of the outer shell of this utility model.
[0025] Figure 4 This is a schematic diagram of the plug piece and the fixed top cover in the unfolded state of this utility model.
[0026] Figure 5 for Figure 4 A magnified view of detail A.
[0027] Figure 6 This is a schematic diagram of the plug and the fixed base in the storage state of this utility model.
[0028] In the picture:
[0029] 1. Outer shell; 11. Receiving cavity; 12. Mounting part; 13. First housing; 131. Positioning block; 14. Second housing; 2. Fixing base; 21. Plug piece; 211. Arc-shaped part; 212. Rotating shaft; 22. Fixing base; 221. First limiting part; 222. Product mating surface; 223. Storage groove; 224. Connecting post; 225. Positioning groove; 23. Fixing top cover; 231. Second limiting part; 232. Second contact surface; 233. Connecting hole; 211. Protrusion; 2111. First contact surface; 3. Conductive spring; 31. Bending part. Detailed Implementation
[0030] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0031] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0032] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, features defined as "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.
[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "connection" and "fixation" should be interpreted broadly. For example, "fixation" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0034] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0035] The specific embodiments described herein are merely illustrative examples of this utility model patent. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or adopt similar methods to replace them, but without departing from the patent of this utility model or exceeding the scope defined by the appended claims.
[0036] like Figures 1-6 As shown, a rotatable plug structure includes: a housing 1 and a fixing base 2.
[0037] The outer shell 1 is provided with a receiving cavity 11 and a mounting part 12, and the mounting part 12 connects the receiving cavity 11 with the external space.
[0038] The fixing base 2 is disposed on the mounting part 12, and the fixing base 2 is provided with a plug piece 21, which is rotatably connected to the fixing base 2.
[0039] The plug piece 21 is provided with a protrusion 211, the length direction of which is perpendicular to the length direction of the plug piece 21. When the plug piece 21 rotates, the protrusion 211 can abut against the fixing base 2.
[0040] Specifically, the mounting base 2 is connected to the outer shell 1 via the mounting part 12, and the insert head is rotatably connected to the mounting base 2, so that the insert head can rotate relative to the mounting base 2 within a certain angle range, thereby realizing the switching between the storage state and the use state.
[0041] In this embodiment, the protrusion 211 on the plug 21 extends outward from the body of the plug 21, and its length direction is perpendicular to the length direction of the main body of the plug 21. When the user moves the plug 21 from the storage position to the use position, the plug 21 drives the protrusion 211 to rotate synchronously. The protrusion 211 abuts against the fixing base 2, preventing the plug 21 from continuing to rotate, thereby ensuring that the plug 21 is stably in the unfolded state and ensuring that the plug 21 can be perpendicular to the contact plane of the socket.
[0042] like Figures 1-6 As shown, based on the above embodiment, it also includes a conductive spring 3, which is connected to the fixing base 2. The plug piece 21 has an arc-shaped portion 211 at one end near the conductive spring 3, and the arc-shaped portion 211 contacts the conductive spring 3.
[0043] Specifically, the conductive spring 3 is made of a metal material with good conductivity and elastic deformation capability. One end of the conductive spring 3 is electrically connected to the internal wire, and the other end of the conductive spring 3 contacts the arc-shaped part 211 of the plug piece 21 to form an electrical path.
[0044] In this embodiment, the surface of the arc-shaped portion 211 is smooth and has a rounded transition. The arc design of the arc-shaped portion 211 matches the contact surface of the conductive spring 3, so that during the rotation of the plug piece 21, the arc-shaped portion 211 can maintain stable sliding contact with the elastic contact end of the conductive spring 3, thereby effectively transmitting current.
[0045] like Figures 1-6 As shown, based on the above embodiment, the fixing base 2 includes a fixing base 22 and a fixing top cover 23. The fixing base 22 and the fixing top cover 23 are detachably connected. The fixing base 22 is connected to the outer shell 1. The conductive spring 3 is disposed between the fixing base 22 and the fixing top cover 23.
[0046] In this embodiment, the fixing base 2 consists of a fixing base 22 and a fixing top cover 23, which are detachably connected. The conductive spring 3 is clamped between the fixing base 22 and the fixing top cover 23. The fixing top cover 23 can limit and press the conductive spring 3 to prevent the conductive spring 3 from shifting or loosening during use, ensuring that the conductive spring 3 can be accurately aligned with the arc-shaped part 211 on the plug piece 21, and ensuring that the two maintain good electrical contact during the rotation of the plug piece 21. At the same time, the detachable design also facilitates subsequent maintenance of the damaged conductive spring 3.
[0047] like Figures 1-6 As shown, based on the above embodiment, the plug piece 21 is provided with a rotating shaft 212, the fixed base 22 is provided with a first limiting part 221, the fixed upper cover 23 is provided with a second limiting part 231, the protrusion 211 is provided on the rotating shaft 212, and both the first limiting part 221 and the second limiting part 231 are in contact with the rotating shaft 212.
[0048] Specifically, the rotating shaft 212 is cylindrical, and the first limiting part 221 and the second limiting part 231 are in contact with the rotating shaft 212. They not only provide support, but also effectively prevent the center position of the rotating shaft 212 from changing during rotation.
[0049] In this embodiment, since the first limiting part 221 and the second limiting part 231 are precisely aligned in space and a uniform constraint force is applied to the rotating shaft 212, the geometric axis of the rotating shaft 212 always rotates around a fixed central axis during rotation, avoiding eccentricity, wobbling or axis drift, and ensuring the smoothness of the rotation of the plug piece 21.
[0050] like Figures 1-6 As shown, based on the above embodiment, the protrusion 211 is provided with a first contact surface 2111, the fixed upper cover 23 is provided with a second contact surface 232, and the fixed base 22 is provided with a product mating surface 222. The first contact surface 2111 is perpendicular to the length direction of the plug piece 21. When the plug piece 21 is unfolded, the first contact surface 2111 and the second contact surface 232 are in contact, and the second contact surface 232 is parallel to the product mating surface 222.
[0051] Specifically, since the first contact surface 2111 is perpendicular to the length direction of the plug piece 21, during the rotation of the plug piece 21, the first contact surface 2111 of the protrusion abuts against the second contact surface 232 of the fixed cover 23. At this time, the length direction of the plug piece 21 is perpendicular to the second contact surface 232, while the second contact surface 232 is parallel to the product mating surface 222, thereby ensuring that the length direction of the plug piece 21 is perpendicular to the product mating surface 222.
[0052] In this embodiment, by aligning the length of the plug prong 21 with the mating surface 222 of the product in the unfolded state, it is ensured that the plug prong 21 is inserted in a direction perpendicular to the socket hole, allowing it to enter smoothly and form a good point contact.
[0053] like Figures 1-6 As shown, based on the above embodiment, the fixed base 22 is provided with a storage groove 223, and the plug piece 21 can be rotatably stored in the storage groove 223.
[0054] In this embodiment, the storage groove 223 is an accommodating space formed by the inward recess of the surface of the fixed base 22. Its shape is adapted to the contour of the plug piece 21. The plug piece 21 can be rotated and stored in the storage groove 223, so that the main body of the plug piece 21 is finally flush with the surface of the fixed base 22, thereby achieving "concealed" storage, which can effectively reduce the size of the plug and improve the portability of the socket.
[0055] like Figures 1-6 As shown, based on the above embodiment, it also includes a fastener. The fixed base 22 is provided with a connecting post 224, and the fixed top cover 23 is provided with a connecting hole 233. The fastener passes through the connecting hole 233 to connect with the connecting post 224, thereby fixing the connection between the fixed top cover 23 and the fixed base 22.
[0056] Specifically, the fastener is a screw, and the fixed base 22 is provided with a connecting post 224. The connecting post 224 extends vertically from the fixed base 22 and has an internal threaded hole along the axial direction. During the assembly process, the conductive spring 3 is first placed on the fixed base 22, then the fixed cover 23 is aligned with the fixed base 22, and the connecting holes 233 of each are aligned with the connecting post 224. Then the fastener is passed through the connecting hole 233 and threadedly connected to the connecting post 224.
[0057] In this embodiment, the screw and the internal threaded connecting post 224 are used together. The screw can be quickly removed and the fixed cover 23 can be opened with only a screwdriver or other common tools. This allows for maintenance and replacement of key components such as the conductive spring 3 and the plug piece 21, greatly improving the maintainability of the product.
[0058] like Figures 1-6 As shown, based on the above embodiment, the conductive spring 3 is provided with a bent portion 31, which contacts the arc-shaped portion 211.
[0059] In this embodiment, the conductive spring 3 is provided with a bending portion 31, which is close to the plug piece 21. The bending portion 31 contacts the arc-shaped portion 211 on the plug piece 21. Utilizing the elastic properties of the conductive spring 3's metal material, it can generate a continuous elastic recovery force after being deformed by force, thereby ensuring a stable and reliable electrical contact with the arc-shaped portion 211.
[0060] like Figures 1-6 As shown, based on the above embodiment, the outer shell 1 includes a first shell 13 and a second shell 14, which can be spliced together to form the receiving cavity 11.
[0061] Specifically, the first housing 13 and the second housing 14 are spliced together by a detachable connection. During the assembly process, the first housing 13 and the second housing 14 are merged left and right to clamp the fixing seat 2 on the mounting part 12. Conversely, during the disassembly process, the first housing 13 and the second housing 14 are separated left and right first, and then the fixing base 22 and the fixing frame can be disassembled and separated.
[0062] In this embodiment, by designing the outer shell 1 as a structure composed of a first shell 13 and a second shell 14, not only is effective encapsulation and protection of the internal components achieved, but structural strength, ease of assembly, and maintainability are also taken into account.
[0063] like Figures 1-6 As shown, based on the above embodiment, the first housing 13 and the second housing 14 are provided with positioning blocks 131, the fixed base 22 is provided with positioning grooves 225, and the positioning blocks 131 are accommodated in the positioning grooves 225.
[0064] Specifically, during the assembly process of the outer shell 1, the first shell 13 and the second shell 14 are assembled by splicing them together from left to right. When the two shells are joined together in the lateral direction and gradually approach each other, the positioning blocks 131 set inside the first shell 13 and the second shell 14 move towards the middle synchronously and are precisely inserted into the positioning groove 225 located on the outer side wall of the fixed base 22. The positioning block 131 is usually a columnar, strip-shaped or L-shaped structure protruding from the inner wall of the shell. Its size and shape match the positioning groove 225 to ensure that a tight fit can be achieved.
[0065] In this embodiment, the fixing seat 2 is firmly locked in the preset installation position of the outer shell 1 by the engagement of the positioning block 131 and the positioning groove 225, ensuring that there is no relative movement between it and the outer shell 1.
Claims
1. A rotatable plug structure, characterized by, include: The outer casing has a receiving cavity and a mounting part, the mounting part connecting the receiving cavity to an external space; A fixing base is disposed on the mounting part, and the fixing base is provided with a plug prong, which is rotatably connected to the fixing base; The plug prong is provided with a protrusion, the length direction of which is perpendicular to the length direction of the plug prong. When the plug prong rotates, the protrusion can abut against the fixing base.
2. A rotatable plug structure as claimed in claim 1, characterized in that: It also includes a conductive spring, which is connected to the fixing base. The plug piece has an arc-shaped part at one end near the conductive spring, and the arc-shaped part contacts the conductive spring.
3. A rotatable plug structure as claimed in claim 2, wherein: The fixing base includes a fixing base and a fixing top cover. The fixing base and the fixing top cover are detachably connected. The fixing base is connected to the outer shell. The conductive spring is disposed between the fixing base and the fixing top cover.
4. A rotatable plug structure as claimed in claim 3, wherein: The plug prong is provided with a rotating shaft, the fixed base is provided with a first limiting part, the fixed top cover is provided with a second limiting part, the protrusion is provided on the rotating shaft, and both the first limiting part and the second limiting part are in contact with the rotating shaft.
5. A rotatable plug structure as claimed in claim 4, wherein: The protrusion is provided with a first contact surface, the fixed top cover is provided with a second contact surface, and the fixed base is provided with a product mating surface. The first contact surface is perpendicular to the length direction of the plug piece. When the plug piece is unfolded, the first contact surface and the second contact surface are in contact, and the second contact surface is parallel to the product mating surface.
6. A rotatable plug structure as defined in claim 3, wherein: The fixed base is provided with a storage slot, and the plug can be rotated and stored in the storage slot.
7. A rotatable plug structure as defined in claim 3, wherein: It also includes fasteners. The fixed base is provided with a connecting post, and the fixed top cover is provided with a connecting hole. The fastener passes through the connecting hole to connect with the connecting post, thereby fixing the connection between the fixed top cover and the fixed base.
8. A rotatable plug structure as defined in claim 2, wherein: The conductive spring sheet is provided with a bent portion, which contacts the arc-shaped portion.
9. A rotatable plug structure as defined in claim 3, wherein: The outer shell includes a first shell and a second shell, which can be joined together to form the receiving cavity.
10. A rotatable plug structure as described in claim 9, characterized in that: The first housing and the second housing are provided with positioning blocks, and the fixed base is provided with positioning grooves, and the positioning blocks are accommodated in the positioning grooves.