Multi-country travel plug with linkage structure

Abstract

The application discloses a multi-country travel plug with a linkage structure, which comprises a shell, a first plug pin assembly and a second plug pin assembly arranged on the back of the shell, and a linkage rod slidingly arranged in the shell, wherein the first plug pin assembly and the second plug pin assembly are matched with the linkage rod. According to the above method, when one of the plug pin assemblies is in a use state and the other plug pin assembly is rotated, the plug pin assembly in the use state is retracted, only one plug pin assembly is allowed to be in the use state, potential safety risks caused by the two plug pin assemblies being in the use state at the same time are avoided, and the first plug pin assembly and the second plug pin assembly are arranged on the back of the shell, so that the thickness of the shell can be effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of plug technology, and in particular to a multi-country travel plug with a linkage structure. Background Technology

[0002] A plug is a connector used to form a circuit with mains electricity. It is typically compatible with sockets, which have different types of prongs, such as two-prong and three-prong plugs. While both two-prong and three-prong plugs are standardized and universal according to usage standards, these standards differ across countries, making universal compatibility impossible. For example, two-prong and three-prong plugs commonly used in China may not be compatible in Europe and America, causing inconvenience. To address this, engineers have designed plugs that can be used in different regions. These plugs have multiple pins that can be selected according to different countries, as illustrated by the Chinese utility model patent. CN219937426U discloses a travel adapter plug designed to prevent mis-insertion, comprising a housing and a plug base. The housing and plug base are connected. The housing contains several pin assemblies and conductive plates. The side wall of the housing has several pin openings. The inner wall of the plug base has an anti-electric shock limiting component located between the plug base and the pin openings. The conductive plates are positioned between the pin openings and the anti-electric shock limiting component, and the anti-electric shock limiting component and the conductive plates are slidably connected, thus improving the safety of the travel adapter plug. However, as can be seen from its specification and accompanying drawings, the pins extend out of the housing by sliding a pushing block. This structure requires pushing or retracting each pin individually, failing to achieve a coordinated extension and retraction effect, making it inconvenient to use.

[0003] Therefore, there is an urgent need to design a multi-country travel plug with an interconnected structure to solve one or more technical problems that are lacking in the existing technology. Utility Model Content

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a multi-country travel plug with a linkage structure, characterized in that it includes: a housing, a first plug assembly on the back of the housing, and a second plug assembly at the other end; the two sides of the first plug assembly are rotatably connected to the housing via a first rotating shaft, and the second plug assembly is rotatably connected to the housing via a second rotating shaft; a linkage rod is slidably provided inside the housing; a first actuating block is provided on the first rotating shaft, and a second actuating block is provided on the second rotating shaft; the linkage rod is provided with a toggle groove adapted to the first and second toggle blocks; when the first plug assembly rotates clockwise, the first actuating block enters the corresponding toggle groove and drives the linkage rod to slide horizontally; when the second plug assembly rotates counterclockwise, the second actuating block enters the corresponding toggle groove and drives the linkage rod to slide horizontally; when the second plug assembly is in use, rotating the first plug assembly clockwise pushes the second actuating block to rotate via the linkage rod, causing the second plug assembly to be stored.

[0005] In a preferred embodiment, the first pin assembly includes a mounting member, the first rotating shaft is fixedly disposed on both sides of the mounting member, and one end of the mounting member is provided with two first pins.

[0006] In a preferred embodiment, the housing has a receiving groove at the location where the first pin assembly is located, the first pin assembly is located in the receiving groove, the end of the first rotating shaft is inserted into the housing from the side wall of the receiving groove, and the first actuating block is located in the housing.

[0007] In a preferred embodiment, the second pin assembly includes two second pins and a mounting base. The two second pins are spaced apart, and their opposite sides are respectively fixedly connected to the second rotating shaft. The mounting base is fixedly disposed within the housing. A moving component is movably disposed in the middle of the mounting base. A lever is rotatably connected to one end of the moving component. An abutment is provided on the bottom side of the lever. A protrusion that mates with the abutment is provided on the mounting base at a position corresponding to the abutment. A connecting block is provided on the opposite side of each of the two second pins. The protrusion of the connecting block is rotatably connected to the end of the moving component away from the lever. When the lever rotates clockwise, the moving component moves through the engagement of the abutment and the protrusion. The moving component, through the connecting block, drives the second pins to rotate counterclockwise and lift them up.

[0008] In a preferred embodiment, the housing is provided with grooves at positions corresponding to the second pin and the lever, the second pin and the lever are located in the corresponding grooves, and the end of the lever extends out of the corresponding groove.

[0009] In a preferred embodiment, a reset block is further provided on the bottom side of the linkage rod, and a reset torsion spring is provided inside the housing at a position corresponding to the reset block, with the reset block clamped between the two ends of the reset torsion spring. The beneficial effects of this utility model are as follows: By setting a linkage rod inside the housing, both the first and second pin components cooperate with the linkage rod. When one pin component is in use and the other pin component is rotated, the pin component in use will be retracted, thereby achieving linkage. This ensures that only one of the first and second pin components is allowed to be in use at any given time, avoiding potential safety risks caused by both pin components being in use simultaneously. Furthermore, since both the first and second pin components are located on the back of the housing, the thickness of the housing can be effectively reduced. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of the present invention; Figure 3 This is a schematic diagram of the structure of the first pin assembly of this utility model; Figure 4 This is a schematic diagram of the structure of the second pin assembly of this utility model; Figure 5 This is a schematic diagram of the structure of the second pin of this utility model; Figure 6 This is a cross-sectional view of the lever and mounting base of this utility model; Figure 7 This is a cross-sectional schematic diagram of the linkage rod of this utility model; Figure 8 This is a schematic diagram showing the cooperation between the reset spring and the reset block of this utility model.

[0011] In the picture: 10. Housing; 11. First pin assembly; 111. Mounting component; 112. First pin; 12. First pivot; 121. First actuating block; 13. Second pin assembly; 131. Second pin; 132. Mounting base; 133. Moving component; 134. Lever; 135. Abutment; 136. Protrusion; 14. Second pivot; 141. Second actuating block; 142. Connecting block; 15. Linkage rod; 151. Actuating groove; 152. Reset block; 153. Reset torsion spring; 16. Receiving groove; 17. Groove. Detailed Implementation

[0012] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0013] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the devices are connected to each other and their relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of this utility model, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0014] In the embodiments of this application, 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 number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0015] In the embodiments of this application, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0016] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized. Therefore, this application is not limited to the specific embodiments disclosed below.

[0017] like Figures 1-8 As shown, this utility model provides a multi-country travel plug with a linkage structure, including: a housing 10, a first pin assembly 11 on the back of the housing 10, and a second pin assembly 13 on the other end. The first pin assembly 11 is rotatably connected to the housing 10 on both sides via a first rotating shaft 12, and the second pin assembly 13 is rotatably connected to the housing 10 via a second rotating shaft 14. A linkage rod 15 is slidably disposed inside the housing 10. A first actuating block 121 is disposed on the first rotating shaft 12, and a second actuating block 141 is disposed on the second rotating shaft 14. The linkage rod 15 is provided with a linkage mechanism... The first actuating block 121 and the second actuating block 141 are adapted to actuating slots 151. When the first pin assembly 11 rotates clockwise, the first actuating block 121 enters the corresponding actuating slot 151 and drives the linkage rod 15 to slide horizontally. When the second pin assembly 13 rotates counterclockwise, the second actuating block 141 enters the corresponding actuating slot 151 and drives the linkage rod 15 to slide horizontally. When the second pin assembly 13 is in use, rotating the first pin assembly 11 clockwise pushes the second actuating block 141 to rotate through the linkage rod 15, causing the second pin assembly 13 to be stored. Specifically, the back of the housing 10 is provided with a first pin assembly 11 and a second pin assembly 13. The first pin assembly 11 is rotatably mounted on the housing 10 via a first rotating shaft 12, and the second pin assembly 13 is rotatably mounted on the housing 10 via a second rotating shaft 14. Two linkage rods 15 are slidably mounted inside the housing 10, located on opposite sides of the housing 10. Two spaced-apart slots 151 are formed on each linkage rod 15. The first rotating shaft 12 and the second rotating shaft 14 are respectively provided with actuating blocks adapted to the actuating slots 151. When the first pin assembly 11 and the second pin assembly 13 are in the retracted state, the actuating blocks are located outside the actuating slots 151. When the first pin assembly 11 rotates clockwise, the actuating blocks on the first rotating shaft 12 enter the actuating slots 151, and the rotation of the first rotating shaft 12 drives the linkage rods 15 to move. The second pin assembly 13 is similarly positioned. When one actuating block is located in its corresponding actuating slot 151, the other actuating block partially interacts with its corresponding actuating slot 151. The misalignment causes the other actuating block to enter the actuating slot 151, thereby moving the linkage rod 15. When the first actuating block 121 and the second actuating block 141 are in the retracted state, they are opposite each other. When the second pin assembly 13 rotates counterclockwise, the second actuating block 141 of the second rotating shaft 14 enters the corresponding actuating slot 151. This is the working state of the second pin assembly 13. In this state, when the first pin assembly 11 is rotated clockwise, the first actuating block 121 on the first rotating shaft 12 rotates and enters the actuating slot 151, pushing the linkage rod 15 to move. At this time, the linkage rod 15 will drive the second actuating block 141 to rotate, causing the second rotating shaft 14 to rotate, thus retracting the second pin assembly 13 and achieving linkage. Similarly, when the second pin assembly 13 rotates while the first pin assembly 11 is in the working state, it will also cause the first pin assembly 11 to retract, achieving linkage. This ensures that only one of the first pin assembly 11 and the second pin assembly 13 is in the working state, eliminating the need to rotate and retract them one by one.

[0018] Furthermore, the first pin assembly 11 includes a mounting member 111, the first rotating shaft 12 is fixedly disposed on both sides of the mounting member 111, and one end of the mounting member 111 is provided with two first pins 112. Specifically, the first plug assembly 11 includes a mounting member 111, a first rotating shaft 12 fixedly disposed on both sides of the mounting member 111, and two first prongs 112 provided at one end of the mounting member 111. The mounting member 111 is rotatably disposed on the housing 10 via the first rotating shaft 12, and the mounting member 111 drives the first rotating shaft 12 to rotate. In order to reduce the overall thickness of the plug, a receiving groove 16 is also provided on the back of the housing 10. The first plug assembly 11 is located in the receiving groove 16, and the first rotating shaft 12 passes through the side wall of the receiving groove 16 and enters the housing 10. When the first plug assembly 11 is retracted, it can be completely stored in the receiving groove 16, thereby reducing the overall thickness of the plug.

[0019] Furthermore, the second pin assembly 13 includes two second pins 131 and a mounting base 132. The two second pins 131 are spaced apart, and the opposite sides of the two second pins 131 are respectively fixedly connected to the second rotating shaft 14. The mounting base 132 is fixedly disposed inside the housing 10. A moving part 133 is movably disposed in the middle of the mounting base 132. One end of the moving part 133 is rotatably connected to a lever 134. The bottom side of the lever 134 is provided with an abutment part 135. The mounting base 132 and the... A protrusion 136 is provided at the position corresponding to the abutment 135 to cooperate with the abutment 135. A connecting block 142 is provided on the opposite side of the two second pins 131. The protrusion of the connecting block 142 is rotatably connected to the end of the moving member 133 away from the end connected to the lever 134. When the lever 134 rotates clockwise, it drives the moving member 133 to move through the cooperation of the abutment 135 and the protrusion 136. The moving member 133 drives the second pins 131 to rotate counterclockwise and lift through the connecting block 142. Specifically, two second pins 131 are spaced apart, and a second rotating shaft 14 is fixedly mounted on the opposite side of the two pins. A mounting base 132 is also fixedly mounted inside the housing 10. A moving component 133 is movably mounted in the middle of the mounting base 132, and the moving component 133 is located between the two second pins 131. Connecting blocks 142 are respectively provided on the opposite side of the two second pins 131. The other end of the connecting block 142 is rotatably connected to the moving component 133. A lever 134 is rotatably connected to the other end of the moving component 133, and the lever 134 is also located between the two second pins 131. Between them, and the bottom side of the end where the lever 134 is connected to the moving part 133 is also provided with a protruding abutment 135, forming a structure similar to the connecting block 142. At the position corresponding to the abutment 135, the mounting base 132 is provided with a protrusion 136 that cooperates with the abutment 135. Through the cooperation of the abutment 135 and the protrusion 136, the lever 134 drives the moving part 133 to move when it rotates clockwise. When the moving part 133 rotates through the connection with the connecting block 142, the two second pins 131 are raised synchronously.

[0020] Furthermore, the housing 10 has grooves 17 at the positions corresponding to the second pin 131 and the lever 134, the second pin 131 and the lever 134 are located in the corresponding grooves 17, and the end of the lever 134 extends out of the corresponding groove 17. Specifically, to reduce the thickness of the plug, grooves 17 are respectively provided at the positions corresponding to the second pin 131 and the lever 134 on the housing 10. The second pin 131 and the lever 134 are respectively located in the corresponding grooves 17, and can be stored in the grooves 17 when retracted, thereby reducing the thickness of the plug. In order to facilitate the movement of the lever 134, the end of the lever 134 extends out of the corresponding groove 17. In this embodiment, the groove 17 corresponding to the lever 134 is connected to the receiving groove 16. The end of the mounting plate connected to the first rotating shaft 12 is provided with a clearance hole. The end of the lever 134 is located in the clearance hole. When the first pin assembly 11 is in use, the lifting of the lever 134 can be restricted, thereby restricting the second pin assembly 13 from lifting when the first pin assembly 11 is in use.

[0021] Furthermore, a reset block 152 is provided on the bottom side of the linkage rod 15, and a reset torsion spring 153 is provided in the housing 10 at a position corresponding to the reset block 152, with the reset block 152 clamped at both ends of the reset torsion spring 153. Specifically, a reset block 152 is provided on the bottom side of the linkage rod 15, and a reset torsion spring 153 is provided inside the housing 10. The reset ring is located between the two ends of the reset torsion spring 153. When the linkage rod 15 moves, it will squeeze one end located in the direction of movement. When the linkage rod 15 loses the restriction of the toggle block, it will reset itself under the force of the reset torsion spring 153.

[0022] It should be noted that conductive plates are provided inside the first rotating shaft 12 and the second rotating shaft 14, and conductive contact plates are provided inside the housing 10. The conductive contact plates cover the first rotating shaft 12 and the second rotating shaft 14 at positions corresponding to them. At the same time, the first pin 112 and the second pin 131 are electrically connected to the corresponding conductive plates, thereby realizing the electrical connection between the pins and the conductive contact plates. Several sockets are provided on the front side of the housing 10. The shape of the sockets can be selected from the plug shape of a specific country to facilitate plugging.

[0023] In summary, this application provides a linkage rod 15 inside the housing 10. Both the first pin assembly 11 and the second pin assembly 13 cooperate with the linkage rod 15. When one pin assembly is in use and the other pin assembly is rotated, the pin assembly in use will be retracted, thereby achieving linkage. This ensures that only one of the first pin assembly 11 and the second pin assembly 13 is allowed to be in use at any time, avoiding potential safety risks caused by both pin assemblies being in use simultaneously. Furthermore, since both the first pin assembly and the second pin assembly are located on the back of the housing, the thickness of the housing can be effectively reduced.

[0024] This invention is not limited to the description in the specification and embodiments. Therefore, other advantages and modifications can be readily realized by those skilled in the art. Thus, without departing from the spirit and scope of the general concept as defined by the claims and their equivalents, this invention is not limited to the specific details, representative devices and illustrated examples shown and described herein.

Claims

1. A multi-country travel plug with a linkage structure, characterized in that, The device includes: a housing, a first pin assembly on the back of the housing, and a second pin assembly at the other end. The first pin assembly is rotatably connected to the housing via a first rotating shaft on both sides, and the second pin assembly is rotatably connected to the housing via a second rotating shaft. A linkage rod is slidably disposed within the housing. A first actuating block is disposed on the first rotating shaft, and a second actuating block is disposed on the second rotating shaft. The linkage rod has a locating groove adapted to the first and second actuating blocks. When the first pin assembly rotates clockwise, the first actuating block enters the corresponding locating groove and drives the linkage rod to slide horizontally. When the second pin assembly rotates counterclockwise, the second actuating block enters the corresponding locating groove and drives the linkage rod to slide horizontally. When the second pin assembly is in use, clockwise rotation of the first pin assembly pushes the second actuating block to rotate via the linkage rod, causing the second pin assembly to be retracted.

2. The multi-country travel plug with a linkage structure according to claim 1, characterized in that, The first pin assembly includes a mounting component, the first rotating shaft is fixedly disposed on both sides of the mounting component, and one end of the mounting component is provided with two first pins.

3. The multi-country travel plug with a linkage structure according to claim 1 or 2, characterized in that, The housing has a receiving groove at the location where the first pin assembly is located, the first pin assembly is located in the receiving groove, the end of the first rotating shaft is inserted into the housing from the side wall of the receiving groove, and the first actuating block is located in the housing.

4. The multi-country travel plug with a linkage structure according to claim 1, characterized in that, The second pin assembly includes two second pins and a mounting base. The two second pins are spaced apart, and their opposite sides are fixedly connected to the second rotating shaft. The mounting base is fixedly disposed within the housing. A moving component is movably disposed in the middle of the mounting base. A lever is rotatably connected to one end of the moving component. An abutment is provided on the bottom side of the lever. A protrusion that mates with the abutment is provided on the mounting base at a position corresponding to the abutment. A connecting block is provided on the opposite side of each of the two second pins. The protrusion of the connecting block is rotatably connected to the end of the moving component away from the lever. When the lever rotates clockwise, the moving component moves through the engagement of the abutment and the protrusion. The moving component, through the connecting block, causes the second pins to rotate counterclockwise and lift.

5. The multi-country travel plug with a linkage structure according to claim 4, characterized in that, The housing has grooves at positions corresponding to the second pin and the lever, with the second pin and the lever located in the corresponding grooves and the end of the lever extending out of the corresponding groove.

6. The multi-country travel plug with a linkage structure according to claim 1, characterized in that, The bottom side of the linkage rod is also provided with a reset block, and a reset torsion spring is provided in the housing at the position corresponding to the reset block, with the reset block clamped at both ends of the reset torsion spring.

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