Simple limiting conversion socket

Abstract

The utility model discloses a simple limiting conversion socket. Comprising a shell, a circuit board located in the shell, an inner frame, at least two power connection plugs and conducting strips corresponding to the power connection plugs, a sliding groove is formed in the side, facing the pushing head, of the inner frame, and an interference plate is placed in the sliding groove and can move relative to the interior of the sliding groove. According to the utility model, the interference plates are arranged on the same side, and after the power connection plugs are pushed each time and the interference plates are pushed, on one hand, the interference plates are staggered to form a connection rod for the pushed power connection plugs to pass through, and on the other hand, the connection rods of the other power connection plugs are blocked, so that only one plate body is moved, and the power connection plugs can be conveniently connected. Therefore, the problem that the power connection plug is pushed out at the same time can be easily avoided, the use safety is ensured, and the occupation of the internal space can be effectively controlled compared with the arrangement of other limiting structures.

Description

Technical Field

[0001] This utility model relates to the field of adapter socket technology, and in particular to a simple limiting adapter socket. Background Technology

[0002] A power adapter—literally, it's a device that converts one type of plug to another. More generally, it refers to converting different power plugs from different countries, or a plug from one country, into power plugs from multiple countries, allowing a plug from one or more countries to be plugged into a socket in another country. This enables plugs from different countries to be used interchangeably in different countries around the world, solving the problem of using electrical appliances from different countries in other countries.

[0003] Currently, existing travel adapters are designed with a socket on one end that accommodates various plug sizes, with corresponding inserts inside. The other end has various plug sizes, and all plugs can retract when not in use. The internal circuit board is typically located inside. Because travel adapters are designed for travel, they are generally compact. However, to prevent other plugs from extending simultaneously (as this could cause short circuits or interfere with normal use), internal limiting structures are incorporated to prevent plug extension. Common limiting structures rely on a spring and corresponding pin / lock for each plug assembly, so that when a single plug is pushed out or retracted, a lock is formed, thus preventing the plug from automatically retracting. However, this setting only satisfies the automatic pushing of the plug, but in case of accidental operation, other plugs can also be pushed out at the same time, which is still risky. It cannot completely prevent a single plug from extending, and each set of limiting structures will greatly increase the internal space volume, making the existing adapter sockets need to be designed to be larger. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a simple limiting conversion socket.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A simple limiting adapter socket includes a housing, a circuit board inside the housing, an inner frame, at least two power plugs, and conductive plates corresponding to the power plugs. One end face of the housing has a clearance hole at the position of the power plug, and the other end face of the housing has a socket. A conductive sleeve is disposed inside the housing relative to the socket. The power plugs are slidably mounted on the inner frame via sliding cavities. Each power plug is equipped with an insulating push seat, and each push seat has a push head located outside the housing via a connecting rod. The conductive plates are mounted on the inner frame, and the insertion port of each conductive plate corresponds to the pushing trajectory of the corresponding power plug. After the plug is pushed out of the clearance hole, the conductive part of the plug contacts the conductive plate. The conductive plate and the conductive sleeve are electrically connected to the circuit board. The push head on each push seat is located on the same side of the inner frame. The inner frame is provided with a sliding groove on the side facing the push head. An interference plate is placed in the sliding groove. The interference plate can move relative to the sliding groove. After sliding, there is only one gap between the interference plates or between the interference plates and the upper and lower ports of the sliding groove for a single connecting rod to be pushed in. The end face of one end of the interference plate is provided with a guide slope so that when the connecting rod touches the guide slope of the interference plate, it can force the interference plate to move in the sliding groove.

[0007] Preferably, the inner frame is detachably installed inside the housing.

[0008] Preferably, the sliding groove includes a first groove at the front end of the inner frame and a second groove at the rear end of the inner frame, with the two ends of the interference plate respectively placed in the first groove and the second groove.

[0009] Preferably, the connecting rod has a chamfered surface on the side near the guide ramp.

[0010] Preferably, the push seat is embedded in one end of the power connector, allowing the push seat to move laterally relative to the power connector. At least one spring is provided between the push seat and the power connector. Each time the push seat moves laterally, the spring is compressed. The inner frame is provided with at least one limiting port at both the front and rear ends of the sliding cavity. The push seat is provided with a limiting edge corresponding to the limiting port. Each time the limiting edge moves to the limiting port, the spring can push the limiting edge into the limiting port.

[0011] Preferably, the push base is provided with at least one mounting block, the power connector is provided with a mounting position, the push base passes laterally through the mounting position and can move along the lateral position of the mounting position, the push base is provided with a mounting opening, and the mounting block is placed in the mounting opening. When the power connector is a European standard connector, the mounting block is provided with a guide block, the outer shell of the European standard power connector is provided with a guide hole, the guide block is placed in the guide hole, and the periphery of the mounting opening and the periphery of the mounting block are provided with corresponding alignment openings and alignment edges.

[0012] Preferably, each of the power connectors and the sliding cavity is provided with a clearance position, and the power connectors are stacked vertically on the inner frame based on the clearance positions.

[0013] Preferably, a fuse is connected between the conductive sheet and the conductive socket and the circuit board.

[0014] By adopting the above-mentioned solution, this utility model uses an interference plate on the same side. Each time the plug is pushed, the interference plate is moved, creating a staggered space for the connecting rod of the pushed plug to pass through, while blocking the connecting rod of other plugs. In this way, the problem of plugs being pushed out simultaneously can be easily avoided by moving only one plate, ensuring safety and effectively controlling the occupancy of internal space compared to other limiting structures. At the same time, each plug has a clearance position on the path that another plug would pass through, which further reduces the size of the structure and the volume of the inner frame, thus reducing the overall size. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0016] Figure 2 This is a structural schematic diagram of another aspect of an embodiment of the present utility model.

[0017] Figure 3 This is a schematic diagram of the internal structure of an embodiment of the present utility model.

[0018] Figure 4 This is a cross-sectional view of the interference plate in an embodiment of the present invention.

[0019] Figure 5 This is a schematic diagram of the structure between the power connector and the sliding cavity in an embodiment of this utility model.

[0020] Figure 6 This is a schematic diagram of the structure of the European standard electrical connector according to an embodiment of the present invention.

[0021] Figure 7This is an exploded view of the European standard electrical plug from another direction according to an embodiment of this utility model.

[0022] Figure 8 This is a schematic diagram of the British standard electrical connector according to an embodiment of the present invention.

[0023] Figure 9 This is a schematic diagram of the American standard power connector according to an embodiment of the present invention. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are 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. They 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" 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. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In the description of this utility model, it should 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, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0027] like Figures 1 to 7As shown, this embodiment provides a simple limiting adapter socket, including a housing 1 and a circuit board (not shown) located inside the housing 1, an inner frame 2, at least two power plugs 3, and conductive plates 4 corresponding to the power plugs 3. A clearance hole 5 is provided on one end face of the housing 1 at the position directly opposite the power plug 3, and a socket 6 is provided on the other end face of the housing 1. A conductive sleeve 7 is provided inside the housing 1 relative to the socket 6. The power plugs 3 are slidably mounted on the inner frame 2 through a sliding cavity 8. Each power plug 3 is equipped with a push seat 9 with insulating properties. Each push seat 9 is provided with a push head 11 located outside the housing 1 via a connecting rod 10. The conductive plates 4 are mounted on the inner frame 2, and the insertion port of each conductive plate 4 corresponds to the pushing trajectory of the corresponding power plug 3. After the plug of the power connector 3 is pushed out of the clearance hole, the conductive part 21 of the power connector 3 makes contact with the conductive piece 4. The conductive piece 4 and the conductive sleeve 7 are electrically connected to the circuit board. The push head 11 on each push seat 9 is located on the same side of the inner frame 2. The inner frame 2 is provided with a sliding groove on the side facing the push head 11. An interference plate 12 is placed in the sliding groove. The interference plate 12 can move relative to the sliding groove. After sliding, there is only one gap between the interference plate 12 and the upper and lower ports of the interference plate 12 or between the interference plate 12 and the upper and lower ports of the sliding groove for a single connecting rod 10 to be pushed in. The end face of one end of the interference plate 12 is provided with a guide slope 13 so that when the connecting rod 10 touches the guide slope 13 of the interference plate 12, it can force the interference plate 12 to move in the sliding groove.

[0028] In this embodiment, an interference plate 12 is set on the same side. Each time the power plug 3 is pushed, the interference plate 12 is pushed and, on the one hand, it is staggered to allow the connecting rod 10 of the pushed power plug 3 to pass through, and on the other hand, it blocks the connecting rod 10 of the other power plug 3. In this way, the problem of the power plugs 3 being pushed out at the same time can be easily avoided by moving only one plate. This not only ensures safety, but also effectively controls the occupation of internal space compared with other limiting structures.

[0029] To better illustrate the structural principle, the operation is explained using three power connectors 3 and two interference plates 12. The three power connectors 3 can be configured as European standard, British standard, and American standard connectors, respectively. When the uppermost European standard connector needs to be pushed out, the push head 11 of the European standard power connector 3 is pushed outward, causing it to gradually push outward toward the clearance hole 5. During this pushing, the connector rod 10 abuts against the guide slope 13 at one end of the upper interference plate 12. This forces the two interference plates 12 to move synchronously toward one side of the sliding groove, thus satisfying the push-in of the connector rod 10 of the European standard power connector 3. There are no gaps between the interference plates 12 or between the interference plate 12 and the other side of the sliding groove, preventing the other power connectors 3 from being pushed out. When another power connector 3 needs to be pushed out, it must be returned to its original position before pushing out another power connector 3 as needed. For example, for the British standard power connector 3 in the middle, when it is pushed outward, its connecting rod 10 abuts against the guide slope 13 of the two interference plates 12, causing the two interference plates 12 to move to both sides, creating a gap between them, thus allowing the British standard power connector 3 to be pushed out. When the American standard power connector 3 at the bottom is pushed outward, the principle is the same as that of the European standard power connector 3. After being pushed, the connecting rod 10 and the guide slope 13 force the two interference plates 12 to move upward together, creating the gap required for the American standard power connector 3 to be pushed out. After each power connector 3 is pushed out, it will abut against the corresponding conductive plate 4, forming a circuit and thus allowing power to be connected.

[0030] Furthermore, in this embodiment, the inner frame 2 is detachably installed inside the housing 1. For example, it can be installed using screws. This detachable installation method allows the internal components to exist as individual modular units when all internal components are installed on the inner frame 2. This facilitates subsequent maintenance and replacement, and also makes it easier to sell this modular unit separately later.

[0031] Furthermore, regarding the sliding design of the interference plate 12, the sliding groove in this embodiment includes a first groove 14 disposed at the front end of the inner frame and a second groove 15 disposed at the rear end of the inner frame 2. The two ends of the interference plate 12 are respectively placed in the first groove 14 and the second groove 15. In this way, the interference plate 12 is limited by the first groove 14 and the second groove 15, so that the interference plate 12 forms a bidirectional fit, which makes the sliding of the interference plate 12 more stable.

[0032] Furthermore, the pushing of the interference plate 12 mainly relies on the pushing between the end face of the connecting rod 10 and the guide slope 13. Therefore, in order to push the interference plate 12 more smoothly, the connecting rod 10 in this embodiment is provided with a chamfered surface on the side close to the guide slope 13. By relying on the contact between the chamfered surface and the guide slope 13, the interference plate 12 can be pushed better, allowing the interference plate 12 to slide.

[0033] Furthermore, to lock the plug 3 after it is pushed out or pushed back, and to prevent it from moving on its own without human intervention, the push seat 9 in this embodiment is embedded in one end of the plug 3, so that the push seat 9 can be pushed laterally relative to the plug 3. At least one spring 16 is provided between the push seat 9 and the plug 3. Each time the push seat 9 is pushed laterally, the spring 16 is compressed. The inner frame 2 is provided with at least one limiting port 17 at both the front and rear ends of the sliding cavity 8. The push seat 9 is provided with a limiting edge 18 corresponding to the limiting port 17. Each time the limiting edge 18 moves to the limiting port 17, the spring 16 can push the limiting edge 18 into the limiting port 17.

[0034] Furthermore, regarding the specific structure of the push base 9 being able to move laterally relative to the power connector 3, in this embodiment, at least one mounting block 21 can be provided on the push base 9, and the power connector 3 can be provided with a mounting position 22. The push base 9 can move laterally through the mounting position 22 and along the lateral position of the mounting position 22. The push base 9 is provided with a mounting opening 23, and the mounting block 21 is placed in the mounting opening 23. When the power connector 3 is a European standard plug, the mounting block 21 is provided with a guide block 24. The outer shell of the European standard power connector 3 is provided with a guide hole 25, and the guide block 25 is placed in the guide hole 25. The periphery of the mounting opening 23 and the periphery of the mounting block 21 are both provided with corresponding alignment openings 26 and alignment edges 27. This allows for the lateral movement of the push base 9 and can also effectively reduce the volume, making the structure more compact.

[0035] Furthermore, to reduce the size, each of the power connectors 3 and the sliding cavity 8 in this embodiment is provided with a clearance 19, and the power connectors 3 are stacked vertically on the inner frame 2 based on the clearance 19. This allows for a reasonable design of the internal space, making the structure more compact and reducing the size.

[0036] Furthermore, to ensure circuit safety, a fuse 20 is connected between the conductive sheet 4 and the conductive socket 7 and the circuit board in this embodiment. The fuse 20 is pluggable and installed on the inner frame 2. The fuse 20 can be a cylindrical ceramic fuse.

[0037] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A simple limiting adapter socket, characterized in that: The device includes a housing, a circuit board inside the housing, an inner frame, at least two power connectors, and conductive plates corresponding to the power connectors. One end face of the housing has a clearance hole directly opposite the power connector, and the other end face has an insertion hole. A conductive sleeve is disposed within the insertion hole. The power connectors are slidably mounted on the inner frame via sliding cavities. Each power connector has an insulating push seat, and each push seat has a push head located outside the housing via a connecting rod. The conductive plates are mounted on the inner frame, and the insertion port of each conductive plate corresponds to the pushing trajectory of the corresponding power connector. The power connector's plug... After being pushed out of the clearance hole, the conductive part of the power connector makes contact with the conductive plate. The conductive plate and the conductive sleeve are electrically connected to the circuit board. The push head on each push seat is located on the same side of the inner frame. The inner frame is provided with a sliding groove on the side facing the push head. An interference plate is placed in the sliding groove. The interference plate can move relative to the sliding groove. After sliding, there is only one gap between the upper and lower ports of the interference plate or the interference plate and the sliding groove for a single connecting rod to be pushed in. The end face of one end of the interference plate is provided with a guide slope so that when the connecting rod touches the guide slope of the interference plate, it can force the interference plate to move in the sliding groove.

2. The simplified limiting adapter socket as described in claim 1, characterized in that: The inner frame is detachably installed inside the housing.

3. The simplified limiting adapter socket as described in claim 1, characterized in that: The sliding groove includes a first slot at the front end of the inner frame and a second slot at the rear end of the inner frame, with the two ends of the interference plate respectively placed in the first slot and the second slot.

4. A simplified limiting adapter socket as described in claim 3, characterized in that: The connecting rod has a chamfered surface on the side near the guide slope.

5. A simplified limiting adapter socket as described in claim 4, characterized in that: The push seat is embedded in one end of the power connector, allowing the push seat to move laterally relative to the power connector. At least one spring is provided between the push seat and the power connector. Each time the push seat moves laterally, the spring is compressed. The inner frame is provided with at least one limiting port at both the front and rear ends of the sliding cavity. The push seat is provided with a limiting edge corresponding to the limiting port. Each time the limiting edge moves to the limiting port, the spring can push the limiting edge into the limiting port.

6. A simplified limiting adapter socket as described in claim 5, characterized in that: The push base is provided with at least one mounting block, and the power connector is provided with a mounting position. The push base passes laterally through the mounting position and can move along the lateral position of the mounting position. The push base is provided with a mounting opening, and the mounting block is placed in the mounting opening. When the power connector is a European standard plug, the mounting block is provided with a guide block. The outer shell of the European standard power connector is provided with a guide hole, and the guide block is placed in the guide hole. The periphery of the mounting opening and the periphery of the mounting block are provided with corresponding alignment openings and alignment edges.

7. A simplified limiting adapter socket as described in claim 6, characterized in that: Each of the power connectors and sliding cavities is provided with a clearance position, and the power connectors are stacked vertically on the inner frame based on the clearance positions.

8. A simplified limiting adapter socket as described in claim 1, characterized in that: A fuse is connected between the conductive sheet and the conductive socket and the circuit board.

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