A metric folding plug

Abstract

The utility model relates to a kind of inch folding plug, including one upper pin and two lower pins rotationally arranged on shell, upper pin and lower pin can be rotated from vertical state to horizontal state, slidingly arranged with slider in shell, spring is arranged between slider and shell, inclined surface is arranged on slider, upper auxiliary shaft is arranged on upper pin and abuts with inclined surface, rotating upper pin can make upper auxiliary shaft through abutting and pressing inclined surface make slider horizontal sliding, and slider synchronous drives lower pin to rotate, the top of inclined surface is provided with limiting slot, when rotating upper pin makes upper auxiliary shaft be clamped into limiting slot, slider promotes upper auxiliary shaft and locks upper pin.The utility model provides inch folding plug, linkage control of three pins is realized by means of spring and slider, compared with connecting rod mechanism, it is more labor-saving and smooth, and limiting locking mechanism is arranged on slider and cooperated with upper pin, can effectively prevent in use process false trigger.

Description

Technical Field

[0001] This utility model belongs to the field of plug technology, and specifically relates to a British standard folding plug. Background Technology

[0002] Traditional British standard plugs (BS 1363 standard) are limited by the requirement of carrying a high current of 13A. The plug pins are usually made of solid copper material with a thickness of 4mm, which makes the base thickness reach 12.7mm. They are bulky and take up too much space in portable electronic devices.

[0003] In existing technologies, foldable British standard plugs mostly use a linkage mechanism to retract and extend the plug pins. This solution has the following drawbacks: 1) High mechanical complexity: The connecting rod hinge points are prone to wear and loosening after long-term use; 2) Difficult to unfold and fold: When unfolding, it is necessary to overcome the cumulative friction of 4 hinge points. Utility Model Content

[0004] In view of this, the purpose of this utility model is to address the shortcomings of the existing technology by providing a British standard folding plug that uses springs and sliders to replace rigid connecting rods, thereby achieving a more labor-saving and better linkage folding solution for the plug pins.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A British standard folding plug includes an upper pin and two lower pins rotatably mounted on a housing. The upper and lower pins can rotate from a vertical position to a horizontal position. A slider is slidably mounted inside the housing, and a spring is provided between the slider and the housing. An inclined surface is provided on the slider. An upper sub-shaft is provided on the upper pin, which abuts against the inclined surface. Rotating the upper pin causes the upper sub-shaft to press against the inclined surface, causing the slider to slide horizontally. Simultaneously, the slider drives the lower pins to rotate. A limit groove is provided at the top of the inclined surface. When the upper pin is rotated and the upper sub-shaft is engaged in the limit groove, the slider pushes the upper sub-shaft to lock the upper pin.

[0006] To better realize this utility model, the above structure is further optimized. The slider is connected to the top of the lower pin, and the rotation direction of the upper pin is opposite to that of the lower pin, and both rotate toward the inside of the outer shell.

[0007] To better realize this utility model, the above structure is further optimized. A lower sub-shaft is provided on the top side of the lower pin, and a socket is provided on the slider. The lower sub-shaft is inserted into the socket and moves up and down with it.

[0008] To better realize this utility model, the above structure is further optimized by providing three storage slots on the outer shell. Rotating the upper pin and the two lower pins allows it to be stored in the three storage slots respectively.

[0009] To better realize this utility model, the above structure is further optimized, and the storage slot corresponding to the upper plug is a through slot.

[0010] To better realize this utility model, the above structure is further optimized by providing a limiting post on the outer shell, which is located behind the slider.

[0011] To better realize this utility model, the above structure is further optimized by providing a positioning post on the slider and a spring sleeved on the positioning post.

[0012] To better realize this utility model, the above structure is further optimized, and the limiting groove is an arc-shaped structure.

[0013] To better realize this utility model, the above structure is further optimized. A contouring limiting part is provided on the top inner side of the shell, the top of the upper pin fits against the contouring limiting part, and a deformable protrusion is provided on the top side of the upper pin. The deformable protrusion is used to limit the position of the contouring limiting part.

[0014] To better realize this utility model, the above structure is further optimized. The outer shell includes an upper cover and a lower cover, which are fixedly connected by buckles and screws.

[0015] Compared with the prior art, this utility model has the following advantages: The UK standard folding plug provided by this utility model achieves linkage control of the three prongs with the help of springs and sliders, which is more labor-saving and smoother than linkage mechanisms. At the same time, a limit locking mechanism that cooperates with the upper prong is provided on the slider, which can effectively prevent accidental triggering during use. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the UK standard folding plug of this utility model; Figure 2 This is a schematic diagram of the bottom structure of the UK standard folding plug of this utility model; Figure 3 This is one of the side sectional views of the British standard folding plug of this utility model; Figure 4 This is the second side sectional view of the British standard folding plug of this utility model; Figure 5This is one of the schematic diagrams of the internal structure of this utility model after the top cover is removed; Figure 6 This is the second schematic diagram of the internal structure of this utility model after the top cover has been removed; Figure 7 This is a schematic diagram of the connection structure between the slider and the pin in this utility model; Figure 8 yes Figure 7 Exploded view.

[0018] In the picture: 1-Outer shell, 101-Storage slot, 102-Limiting post, 103-Shaping limiting part, 2-Upper pin, 201-Upper sub-shaft, 202-Deformation protrusion, 203-Snap-fit ​​groove, 3-Lower pin, 301-Lower sub-shaft, 4-Slider, 401-Bevel, 402-Limiting groove, 403-Insertion hole, 404-Positioning post, 5-Spring. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] Please refer to Figures 1-8The UK standard folding plug provided by this utility model includes an upper pin 2 and two lower pins 3 rotatably mounted on the outer casing 1. The upper pin 2 and lower pins 3 can rotate from a vertical position to a horizontal position. When in the vertical position, the plug is open; when in the horizontal position, the plug is folded. The outer casing consists of an upper cover and a lower cover, which are fixedly connected by snaps and screws.

[0023] A slider 4 is slidably disposed inside the outer casing 1. A spring 5 is disposed between the slider 4 and the outer casing 1. A positioning post 404 is disposed on the slider 4. The spring 5 is sleeved on the positioning post 404. The positioning post 404 serves to guide and position the spring 5. A limit post 102 is disposed on the outer casing 1. The limit post 102 is located behind the slider 4 and is used to limit the maximum stroke of the slider 4 so that it slides horizontally within a specified distance.

[0024] The slider 4 has an inclined surface 401, and the upper pin 2 has an upper secondary shaft 201 that abuts against the inclined surface 401. Rotating the upper pin 2 allows the upper secondary shaft 201 to press against the inclined surface 401, causing the slider 4 to slide horizontally. As the upper pin 2 rotates clockwise, the upper secondary shaft 201 moves from the bottom to the top of the inclined surface 401. During this process, the slider 4 compresses the spring 5 under the action of the thrust to store potential energy, and the slider 4 simultaneously drives the lower pin 3 to rotate. The top of the inclined surface 401 has a limiting groove 402. When the upper pin 2 is rotated to make the upper secondary shaft 201 engage in the limiting groove 402, the slider 4 pushes the upper secondary shaft 201 to lock the upper pin 2. The limiting groove 402 has an arc-shaped structure, and only a small force is needed to disengage the upper secondary shaft 201 from the limiting groove 402. Figure 4 As shown, when the upper sub-shaft 201 is inserted into the limiting groove 402, the slider 4 is pushed horizontally to the upper sub-shaft 201 under the elastic force of the spring 5. At this time, the upper sub-shaft 201 is subjected to a horizontal pushing force, while the rotation center of the upper pin 2 is located below the upper sub-shaft 201. The upper pin 2 is subjected to a torque that makes it continue to rotate clockwise, causing it to press against the bottom of the outer shell 1 and thus maintain the locked state.

[0025] In order to save space by allowing the folded upper pin 2 and lower pin 3 to cross together, the slider 4 is connected to the top of the lower pin 3. When the slider 4 drives the lower pin 3 to rotate, the lower pin 3 will rotate counterclockwise, while the upper pin 2 will rotate clockwise. The rotation direction of the upper pin 2 is opposite to that of the lower pin 3, and both rotate towards the inside of the outer shell 1.

[0026] like Figures 5-7 As shown, a lower sub-shaft 301 is provided on the top side of the lower pin 3, and a socket 403 is provided on the slider 4. The lower sub-shaft 301 can move up and down in the socket 403. The lower sub-shaft 301 is inserted into the socket 403 and connected to it to move up and down, so as to drive the lower pin 3 to rotate counterclockwise and fold for storage.

[0027] like Figure 2 As shown, the outer casing 1 has three storage slots 101. Rotating the upper plug 2 and the two lower plugs 3 allows them to be stored in the three storage slots 101 respectively. After being stored in the storage slots 101, the plugs can avoid interference with the outside environment. Among them, the storage slot 101 corresponding to the upper plug 2 is a through slot, which makes it convenient to open by prying the end of the upper plug 2 from the side. At the same time, the upper plug 2 protrudes slightly from the storage slot 101, making it easy to open the folding plug.

[0028] like Figure 3 and Figure 4 As shown, a contouring limiting part 103 is provided on the inner top of the outer casing 1. The top of the upper plug 2 fits against the contouring limiting part 103. A deformable protrusion 202 is provided on the top side of the upper plug 2, which is used to limit the position of the contouring limiting part 103. In this application, a semi-circular hole seat with a top opening on the outer casing 1 is used to rotate with the upper plug 2. Therefore, when the plug is plugged in, the contouring limiting part 103 at the top is used to press against the upper plug 2, while the deformable protrusion 202 is used to press against the side of the contouring limiting part 103 to prevent it from rotating left and right. When rotating the upper plug 2, force is required to deform the deformable protrusion 202 and make it pass over the contouring limiting part 103. In addition, a limiting mechanism that cooperates with the upper plug 2 is also provided on the slider 4 to limit the position of the upper plug 2.

[0029] When folding, rotate the upper pin 2 clockwise. First, the deformable protrusion 202 passes the contouring limit part 103. Then, as the upper pin 2 continues to rotate, the upper sub-shaft 201 moves from the bottom of the inclined surface 401 to the top of the inclined surface 401, thereby pushing the slider 4 to move horizontally. During the movement, the slider 4 synchronously drives the lower pin 3 to rotate. Finally, the upper sub-shaft 201 on the upper pin 2 is inserted into the limit groove 402. Under the action of the spring 5, the slider 4 pushes the upper sub-shaft 201 to lock the upper pin 2. The upper pin 2 and the lower pin 3 are now in a horizontal state.

[0030] When opened, the upper pin 2 is rotated counterclockwise, and the upper sub-shaft 201 disengages from the limiting groove 402. Under the action of the spring 5, the slider 4 pushes the upper sub-shaft 201 to move from the top of the inclined plane 401 to the bottom. At the same time, the slider 4 synchronously drives the lower pin 3 to rotate in the opposite direction and gradually unfold. Finally, the deformable protrusion 202 passes over the contour limiting part 103 to limit the upper pin 2, so that the upper pin 2 and the lower pin 3 rotate from the horizontal state to the vertical state.

[0031] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A British standard folding plug, comprising an upper pin and two lower pins rotatably disposed on a housing, wherein the upper pin and the lower pins are rotatable from a vertical position to a horizontal position, characterized in that: A slider is slidably disposed inside the outer casing, and a spring is disposed between the slider and the outer casing. An inclined surface is disposed on the slider, and an upper secondary shaft is disposed on the upper pin that abuts against the inclined surface. Rotating the upper pin allows the upper secondary shaft to press against the inclined surface, causing the slider to slide horizontally, and the slider synchronously drives the lower pin to rotate. A limit groove is disposed at the top of the inclined surface. When the upper pin is rotated and the upper secondary shaft is engaged in the limit groove, the slider pushes the upper secondary shaft to lock the upper pin.

2. The British standard folding plug according to claim 1, characterized in that: The slider is connected to the top of the lower pin, and the upper pin rotates in the opposite direction to the lower pin, both rotating toward the inside of the housing.

3. A British standard folding plug according to claim 2, characterized in that: The lower pin has a lower sub-shaft on its top side, and the slider has a socket. The lower sub-shaft is inserted into the socket and moves up and down to connect with it.

4. A British standard folding plug according to claim 3, characterized in that: The outer casing has three storage slots. Rotating the upper pin and the two lower pins allows it to be stored in the three storage slots respectively.

5. A British standard folding plug according to claim 4, characterized in that: The storage slot corresponding to the upper pin is a through slot.

6. A British standard folding plug according to claim 1, characterized in that: The outer casing is provided with a limiting post, which is located behind the slider.

7. A British standard folding plug according to claim 6, characterized in that: The slider is provided with a positioning post, and the spring is sleeved on the positioning post.

8. A British standard folding plug according to claim 1, characterized in that: The limiting groove has an arc-shaped structure.

9. A British standard folding plug according to claim 1, characterized in that: The inner top of the outer casing is provided with a contour-following limiting part, the top of the upper pin is fitted with the contour-following limiting part, and the top side of the upper pin is provided with a deformable protrusion, which is used to limit the position of the contour-following limiting part.

10. A British standard folding plug according to claim 1, characterized in that: The outer casing includes an upper cover and a lower cover, which are fixedly connected by snaps and screws.

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