Pin structure and travel converter
By setting up a rotating hole and a limit hole on the mounting bracket, combined with the design of damping sleeve, limiting surface and anti-disassembly parts, the problems of difficult manufacturing and complex assembly in existing travel converters are solved, achieving higher adaptability and convenience of use.
Patent Information
- Application Number
- CN202422437537.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-10-09
AI Technical Summary
The flat head pin design of existing travel converters has problems such as difficult manufacturing, low precision and high assembly complexity, especially due to the reliance on the limit holes on the housing for rotation angle limitations.
A connected rotating hole and limiting hole are provided on the mounting bracket, and the rotating part of the flat head pin can be rotatably installed in the rotating hole. The plug-in contacts with the inner side wall of the limiting hole, and combined with the design of the damping sleeve, limiting surface and anti-disengagement parts, an effective limit on the rotation angle of the pin is achieved.
It simplifies the manufacturing process, reduces manufacturing costs, improves assembly accuracy and reliability, enhances adaptability and ease of use, reduces assembly complexity and error possibility, and ensures the stability and safety of the pin structure.
Smart Images

Figure CN223206599U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of travel adapters, in particular to a pin structure and a travel adapter. Background Art
[0002] With the advancement of globalization, the demand for travel adapters is growing. Existing travel adapters typically include multiple plug types to accommodate power outlets in different countries. To save space and improve adaptability, the flat-head prongs of these adapters are often designed to rotate. However, in existing designs, the rotation angle of the flat-head prongs is typically limited by stop holes in the housing. This design is difficult to manufacture and has low precision. Furthermore, the fit and position of the flat-head prongs within the stop holes must be considered during assembly, which increases assembly complexity. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a pin structure and a travel adapter which are easy to assemble.
[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a pin structure, including a mounting bracket and a flat-head pin, the mounting bracket is provided with a connected rotating hole and a limiting hole, the flat-head pin includes a connected plug-in part and a rotating part, the rotating part can be rotatably installed in the rotating hole, and the plug-in part is located through the limiting hole and contacts the inner side wall of the limiting hole.
[0005] Furthermore, a damping sleeve is provided on the rotating part, and the damping sleeve is in conflict with the rotating hole.
[0006] Furthermore, the damping sleeve is made of rubber.
[0007] Furthermore, the inner side wall of the limiting hole is provided with a first limiting surface and a second limiting surface, the first limiting surface is used to abut against one side of the plug-in portion, and the second limiting surface is used to abut against the other side of the plug-in portion.
[0008] Furthermore, a buffer layer is provided on the first limiting surface and / or the second limiting surface.
[0009] Furthermore, a marking layer is provided on the first limiting surface and / or the second limiting surface.
[0010] Furthermore, the marking layer is made of reflective material.
[0011] Furthermore, an anti-slip component is provided in the rotating hole, and the anti-slip component abuts against the rotating part.
[0012] Furthermore, the anti-slip component is a ball-end screw.
[0013] In order to solve the above technical problems, the utility model also provides a travel adapter, including the above pin structure.
[0014] The beneficial effects of the present invention are as follows: the pin structure and travel converter provided by the present invention achieve the rotatability of the pin by providing interconnected rotation holes and limit holes on the mounting bracket, and rotatably mounting the rotating portion of the flat-head pin in the rotation hole, thereby improving the ability to adapt to different sockets. In addition, the interference between the plug-in portion and the inner side wall of the limit hole effectively limits the rotation angle of the pin, solving the problems of low precision and high manufacturing difficulty in opening holes in the outer shell. This design avoids the need to open limit holes in the outer shell, simplifies the manufacturing process, reduces manufacturing costs, and improves the accuracy and reliability of assembly, thereby enhancing the adaptability and ease of use of the travel converter. Through this design, the travel converter can adapt to power sockets in different countries more stably, while reducing the complexity and possibility of errors in the assembly process. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic structural diagram of the pin structure of the first embodiment of the present utility model;
[0016] Figure 2 This is a schematic structural diagram of a travel adapter according to the first embodiment of the present invention;
[0017] Figure 3 This is a schematic cross-sectional view of the travel adapter according to the first embodiment of the present invention.
[0018] Description of labels:
[0019] 1. Mounting bracket; 11. Limiting hole; 12. Rotation hole; 2. Flat-head pin; 21. Rotation part; 22. Connecting part; 23. Damping sleeve; 3. Housing. DETAILED DESCRIPTION
[0020] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.
[0021] Please refer to Figures 1 to 3 A pin structure includes a mounting bracket 1 and a flat-head pin 2, the mounting bracket 1 is provided with a connected rotation hole 12 and a limiting hole 11, the flat-head pin 2 includes a connected plug-in portion 22 and a rotating portion 21, the rotating portion 21 can be rotatably installed in the rotating hole 12, the plug-in portion 22 is located through the limiting hole 11 and contacts the inner side wall of the limiting hole 11.
[0022] As can be seen from the above description, the beneficial effects of the present invention are as follows: by providing interconnected rotation holes 12 and stop holes 11 on the mounting bracket 1, and rotatably mounting the rotation portion 21 of the flat-head plug 2 within the rotation hole 12, the plug is rotatable, thereby improving its ability to adapt to different sockets. Furthermore, the interference between the plug portion 22 and the inner wall of the stop hole 11 effectively limits the rotation angle of the plug, resolving the issues of low precision and high manufacturing difficulty associated with opening holes in the housing. This design avoids the need to provide stop holes 11 in the housing, simplifies the manufacturing process, reduces manufacturing costs, and improves assembly precision and reliability, enhancing the adaptability and ease of use of the travel adapter. Through this design, the travel adapter can more stably adapt to power sockets in different countries while reducing the complexity and potential for errors during assembly.
[0023] Furthermore, a damping sleeve 23 is provided on the rotating portion 21 , and the damping sleeve 23 contacts the rotating hole 12 .
[0024] From the above description, it can be seen that the provision of the damping sleeve 23 increases the friction between the rotating portion 21 and the rotating hole 12, thereby providing a better damping effect, making the pin more stable during the rotation process and reducing the rotation of the pin caused by accidental collision.
[0025] Furthermore, the damping sleeve 23 is made of rubber.
[0026] From the above description, it can be seen that the damping sleeve 23 made of rubber material can provide good elasticity and wear resistance. At the same time, the damping sleeve 23 made of rubber material also has a good shock absorption effect, further improving the stability and durability of the pin structure.
[0027] Furthermore, the inner side wall of the limiting hole 11 is provided with a first limiting surface and a second limiting surface, wherein the first limiting surface is used to abut against one side of the plug-in portion 22 , and the second limiting surface is used to abut against the other side of the plug-in portion 22 .
[0028] From the above description, it can be seen that the first limiting surface and the second limiting surface of the inner wall of the limiting hole 11 respectively contact the two sides of the plug-in portion 22, providing two-directional limiting, making the rotation of the pin more stable and preventing damage caused by excessive rotation.
[0029] Furthermore, a buffer layer is provided on the first limiting surface and / or the second limiting surface.
[0030] From the above description, it can be seen that providing a buffer layer on the first limiting surface and / or the second limiting surface can absorb the impact force when the pin rotates, reduce the wear on the pin and the limiting hole 11, and extend the service life of the product.
[0031] Furthermore, a marking layer is provided on the first limiting surface and / or the second limiting surface.
[0032] As can be seen from the above description, providing the identification layer can improve the user's ability to identify the pin position in dark places or with poor visibility, thereby improving the convenience of use.
[0033] Furthermore, the marking layer is made of reflective material.
[0034] As can be seen from the above description, using reflective material as the identification layer can enhance visibility in low-light environments and further improve the user's ability to identify the pin position in various environments.
[0035] Furthermore, an anti-slipping piece is provided in the rotating hole 12 , and the anti-slipping piece contacts the rotating portion 21 .
[0036] As can be seen from the above description, the provision of the anti-dropping member prevents the rotating portion 21 from falling out of the rotating hole 12 in an accidental situation, thereby improving the safety and reliability of the pin structure.
[0037] Furthermore, the anti-slip component is a ball-end screw.
[0038] From the above description, it can be seen that the ball screw, as an anti-dropping component, can effectively prevent the rotating part 21 from accidentally falling off due to its special structural design. At the same time, the installation and removal of the ball screw are also relatively convenient.
[0039] In order to solve the above technical problems, the utility model also provides a travel adapter, including the above pin structure.
[0040] As can be seen from the above description, applying the above pin structure to the travel adapter makes the travel adapter have better adaptability and stability, thereby improving the practicality and user satisfaction of the travel adapter.
[0041] Please refer to Figures 1 to 3The first embodiment of the present invention is a travel adapter, comprising a housing 3 and a pin structure mounted on the housing 3. The pin structure includes a mounting bracket 1 and a flat-head pin 2. The mounting bracket 1 is provided with a connected rotation hole 12 and a stop hole 11. The flat-head pin 2 includes a connected plug portion 22 and a rotating portion 21. The rotating portion 21 is rotatably mounted within the rotation hole 12. The plug portion 22 is located through the stop hole 11 and abuts against the inner side wall of the stop hole 11. As will be readily understood, by providing the connected rotation hole 12 and the stop hole 11 on the mounting bracket 1 and by rotatably mounting the rotating portion 21 of the flat-head pin 2 within the rotation hole 12, the pin is rotatable, thereby improving its ability to adapt to different sockets. In addition, the abutment between the plug portion 22 and the inner side wall of the stop hole 11 effectively limits the pin's rotation angle, resolving the problems of low precision and high manufacturing difficulty associated with opening holes in the housing mentioned in the background art. This design avoids the need for a retaining hole 11 in the housing, simplifies the manufacturing process, reduces manufacturing costs, improves assembly accuracy and reliability, and enhances the adaptability and ease of use of the travel adapter. This design allows the travel adapter to more reliably adapt to power sockets in different countries while reducing the complexity and potential for error during assembly.
[0042] Preferably, a damping sleeve 23 is provided on the rotating part 21, and the damping sleeve 23 is in contact with the rotating hole 12. The provision of the damping sleeve 23 increases the friction between the rotating part 21 and the rotating hole 12, thereby providing a better damping effect, making the pin more stable during the rotation process, and reducing the rotation of the pin caused by accidental collision; as an option, the material of the damping sleeve 23 is rubber material. The use of the damping sleeve 23 made of rubber material can provide good elasticity and wear resistance. At the same time, the damping sleeve 23 made of rubber material also has a good shock-absorbing effect, further improving the stability and durability of the pin structure; in addition, the material of the damping sleeve 23 can also be plastic, carbon fiber or wood, etc., which can be selected according to actual application requirements and will not be elaborated here.
[0043] Preferably, the inner side wall of the limiting hole 11 is provided with a first limiting surface and a second limiting surface, the first limiting surface is used to abut against one side of the plug-in portion 22, and the second limiting surface is used to abut against the other side of the plug-in portion 22. The first limiting surface and the second limiting surface of the inner side wall of the limiting hole 11 respectively abut against both sides of the plug-in portion 22, providing two-directional limitations, making the rotation of the pin more stable and preventing damage caused by excessive rotation; optionally, a buffer layer (not shown) is provided on the first limiting surface and / or the second limiting surface, and a buffer layer is set on the first limiting surface and / or the second limiting surface The buffer layer can absorb the impact force when the pin rotates, reduce the wear on the pin and the limiting hole 11, and extend the service life of the product; further optionally, an identification layer is provided on the first limiting surface and / or the second limiting surface; it can be understood that the provision of the identification layer can improve the user's ability to identify the position of the pin in dark places or with poor visibility, thereby improving the convenience of use; further, the material of the identification layer is reflective material. Using reflective material as the identification layer can enhance visibility in dark environments, further improving the user's ability to identify the position of the pin in various environments.
[0044] Optionally, an anti-slip member (not shown) may be provided in the rotating hole 12. The anti-slip member interferes with the rotating portion 21. The provision of the anti-slip member prevents the rotating portion 21 from accidentally falling out of the rotating hole 12, thereby improving the safety and reliability of the pin structure. Furthermore, the anti-slip member may be a ball screw. Its special structural design can effectively prevent the rotating portion 21 from accidentally falling out. The ball screw is also relatively easy to install and remove. In addition, since the ball screw is an easy-to-procure part, it can be directly purchased without the need for customized procurement, which greatly saves R&D costs.
[0045] In summary, the pin structure and travel converter provided by the present invention achieve the rotatability of the pin by providing interconnected rotation holes and limiting holes on the mounting bracket, and rotatably installing the rotating portion of the flat-head pin in the rotation hole, thereby improving the ability to adapt to different sockets. In addition, through the interference between the plug-in portion and the inner side wall of the limiting hole, the rotation angle of the pin is effectively limited, solving the problems of low precision and high manufacturing difficulty in opening holes in the outer shell. This design avoids the need to open limiting holes in the outer shell, simplifies the manufacturing process, reduces manufacturing costs, and improves the accuracy and reliability of assembly, thereby enhancing the adaptability and ease of use of the travel converter. Through this design, the travel converter can adapt to power sockets in different countries more stably, while reducing the complexity and possibility of errors in the assembly process.
[0046] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the description and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.
Claims
1. A pin structure, characterized in that: It includes a mounting bracket and a flat-head pin, the mounting bracket is provided with a connected rotating hole and a limiting hole, the flat-head pin includes a connected plug-in part and a rotating part, the rotating part can be rotatably installed in the rotating hole, and the plug-in part is located through the limiting hole and contacts the inner side wall of the limiting hole.
2. The pin structure according to claim 1, wherein: A damping sleeve is provided on the rotating part, and the damping sleeve is in conflict with the rotating hole.
3. The pin structure according to claim 2, wherein: The material of the damping sleeve is rubber.
4. The pin structure according to claim 1, wherein: The inner side wall of the limiting hole is provided with a first limiting surface and a second limiting surface, wherein the first limiting surface is used to abut against one side of the plug-in portion, and the second limiting surface is used to abut against the other side of the plug-in portion.
5. The pin structure according to claim 4, characterized in that: A buffer layer is provided on the first limiting surface and / or the second limiting surface.
6. The pin structure according to claim 4, characterized in that: A marking layer is provided on the first limiting surface and / or the second limiting surface.
7. The pin structure according to claim 6, characterized in that: The marking layer is made of reflective material.
8. The pin structure according to claim 1, wherein: An anti-slip component is provided in the rotating hole, and the anti-slip component abuts against the rotating part.
9. The pin structure according to claim 8, characterized in that: The anti-dropping part is a ball screw.
10. A travel adapter, characterized in that: The invention comprises the pin structure according to any one of claims 1 to 9.