A multi-national universal adapter socket

Abstract

The application provides a multi-national universal conversion socket, which comprises a bottom shell, a top shell, an output socket assembly, an input plug assembly and a direct current output socket; the top shell is connected with the bottom shell through fasteners and forms a mounting cavity, and the output socket assembly, the input plug assembly and the direct current output socket are all mounted in the mounting cavity; the input plug assembly comprises a moving seat; one side of the moving seat is provided with a slot, a limiting block is slidingly mounted in the slot, one side of the limiting block is connected with a push block, and the other side of the limiting block is connected with an elastic assembly at the bottom of the slot; the bottom shell is provided with a through slot at the side corresponding to the input plug assembly, and the inner side of the bottom shell is provided with a limiting groove near the upper and lower ends of the through slot, which is used for clamping one end of the limiting block and fixing the position of the input plug assembly. The plug locking mechanism with the elastic assembly and the limiting block is arranged, and the poor contact problem caused by the retraction of the plug assembly during insertion in the prior art is effectively solved.

Description

Technical Field

[0001] This invention belongs to the field of adapter socket technology, and more specifically, relates to a multinational universal adapter socket. Background Technology

[0002] With the advancement of globalization, cross-border travel and business trips are becoming increasingly frequent. However, differences in power standards and socket types across different countries and regions cause inconvenience for travelers' electricity usage experience. To meet the needs for power compatibility and convenience during travel, adapter socket products have been launched on the market to solve the problem of incompatible power outlets faced by users while traveling.

[0003] A Chinese patent publication number, CN223978264U, discloses a multi-national universal adapter socket, which includes a housing. Inside the housing, there are an input plug assembly, an output socket assembly, and a protective door assembly. The input plug assembly includes a first plug assembly, a second plug assembly, and a third plug assembly, which are slidably and limitably connected to the housing. The output socket assembly includes a front socket structure and a side socket structure. By providing front and side sockets, it can simultaneously accommodate the use of two or more electrical appliances, thereby improving the user experience.

[0004] In the above-disclosed technical solution, the plug assembly lacks a corresponding locking structure when it extends, which causes the plug assembly to easily retract during the insertion of the socket, resulting in poor contact and seriously affecting the user's use. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides a multi-national universal adapter, which is achieved by the following specific technical means:

[0006] A multi-national universal adapter includes a base, a top shell, an output socket assembly, an input plug assembly, and a DC output socket. The top shell is connected to the base shell by fasteners, forming a mounting cavity. The output socket assembly, input plug assembly, and DC output socket are all installed within the mounting cavity. The input plug assembly has three sets, each slidably mounted on the inner side of the base shell. The DC output socket is fixedly mounted on the remaining inner side of the base shell. The input plug assembly includes a movable base, with pins mounted on the bottom side of each movable base, and a connector fixedly mounted on the adjacent side. The device includes a contact spring for pin connection; a slot is provided on one side of the movable base, a limiting block is slidably installed in the slot, a push block is connected to one side of the limiting block, and an elastic component is connected to the bottom of the slot on the other side of the limiting block; the bottom shell has through slots on the sides of the corresponding input plug assembly, and limiting slots are provided on the inner side of the bottom shell near the upper and lower ends of the through slots for engaging with one end of the limiting block to fix the position of the input plug assembly; the bottom of the bottom shell has an opening for each group of input plug assemblies, and a limiting component is slidably installed on one side of the opening.

[0007] Furthermore, the top surface of the top shell is provided with a socket structure, which includes a composite socket compatible with Japanese, American, European and British standard sockets. The socket structure also includes a protective door that is slidably installed on the inner bottom side of the top shell to seal the composite socket.

[0008] Furthermore, the DC output socket includes a circuit board electrically connected to the output socket assembly, with a USB socket and a Type-C socket mounted on one side of the circuit board, and the bottom shell having ports corresponding to both the USB socket and the Type-C socket.

[0009] Furthermore, the inner side of the bottom shell is provided with limit slides on both the left and right sides near the through groove, and the left and right sides of the movable seat are provided with slide grooves that are slidably connected to the limit slides.

[0010] Furthermore, the push block is located on the outside of the bottom shell and is fixedly connected to the limiting block by a connecting strip, which is slidably connected to the through groove.

[0011] Furthermore, the movable base is provided with slots at both the upper and lower ends near the slot, and the limiting block is provided with claws at both the upper and lower ends, and the claws are respectively slidably engaged in the slots.

[0012] Furthermore, the elastic component is a spring, with its two ends respectively abutting against the limiting block and the slot.

[0013] Furthermore, the limiting assembly includes a limiting baffle one, a limiting baffle two, and a limiting baffle three slidably mounted on the bottom wall of the bottom shell. The limiting baffle one is an isosceles trapezoidal structure. The limiting baffle two and the limiting baffle three are located on the left and right sides of the limiting baffle one, respectively, and each has a contact surface parallel to its inclined surface on the side closer to the limiting baffle one. Each of the limiting baffle two and the limiting baffle three has a stop strip at the end near the contact surface. Each of the limiting baffle one, the limiting baffle two, and the limiting baffle three has a limiting protrusion on the side near the input plug assembly. The limiting protrusion is a right-angled trapezoidal structure.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This invention effectively solves the problem of poor contact caused by the easy retraction of the plug assembly during insertion in the prior art by setting a plug locking mechanism with elastic components and a limiting block. When the user pushes the push block to make the limiting block lock into the limiting groove of the bottom shell, the input plug assembly is firmly locked and cannot be retracted, thereby ensuring that the plug pins and the external socket always maintain a tight and reliable electrical connection, significantly improving electrical safety and user experience.

[0016] 2. This invention integrates multi-national compatible AC sockets and DC output interfaces in a compact structure, offering comprehensive functionality and strong practicality. The composite socket on the top shell is compatible with various plug specifications such as Japanese, American, European, and British plugs, and, combined with a sliding protective door, ensures both safety and space saving. Simultaneously, it incorporates USB and Type-C DC output modules to meet the charging needs of various portable devices. Its unique limiting components and sliding structure further enable independent control of the extension and retraction of multiple plugs and overall stability, enhancing the product's durability and ease of operation, making it particularly suitable for international travel and everyday multi-device power usage scenarios. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the invention. Figure 1 .

[0018] Figure 2 This is a schematic diagram of the overall structure of the invention. Figure 2 .

[0019] Figure 3 This is a schematic diagram showing the disassembly of the structure of the present invention.

[0020] Figure 4 This is a schematic diagram of the input plug assembly and limiting assembly of the present invention installed in the bottom shell.

[0021] Figure 5 This is a schematic diagram of the state of the limiting component when one set of input plug components of the present invention is extended.

[0022] Figure 6This is a schematic diagram of the internal structure of the bottom shell of the present invention.

[0023] Figure 7 This is a schematic diagram of the limiting component and the input plug component of the present invention.

[0024] Figure 8 This is a structural disassembly diagram of the input plug assembly of the present invention.

[0025] Figure 9 This is a cross-sectional structural diagram of the input plug assembly of the present invention.

[0026] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0027] 1. Bottom shell; 2. Top shell; 3. Output socket assembly; 4. Input plug assembly; 5. DC output socket; 6. Limiting baffle one; 7. Limiting baffle two; 8. Limiting baffle three; 9. Composite socket;

[0028] 101. Through groove; 102. Limiting groove; 103. Limiting slide bar;

[0029] 401, movable base; 402, pin; 403, contact spring; 404, push block; 405, spring; 4011, slide; 4012, slot; 4013, card slot. Detailed Implementation

[0030] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0031] In the description of this invention, 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 the invention 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 the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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 invention based on the specific circumstances.

[0033] Example:

[0034] As attached Figure 1 To be continued Figure 9 As shown:

[0035] This invention provides a multi-national universal adapter, comprising a base shell 1, a top shell 2, an output socket assembly 3, an input plug assembly 4, and a DC output socket 5. The top shell 2 is connected to the base shell 1 by fasteners, forming a mounting cavity. The output socket assembly 3, the input plug assembly 4, and the DC output socket 5 are all installed within the mounting cavity. Three sets of input plug assemblies 4 are provided, each slidably mounted on the inner side of the base shell 1. The DC output socket 5 is fixedly mounted on the remaining inner side of the base shell 1. The three sets of input plug assemblies 4 are designated as plug assembly one, plug assembly two, and plug assembly three. Plug assembly one is a British standard plug structure, suitable for use in the UK; plug assembly two is a Japanese, American, and Australian standard plug structure, suitable for use in Japan, the US, and Australia; plug assembly three is a European plug structure, suitable for use in EU countries. Plug assembly one, plug assembly two, and plug assembly three can also be selected from existing plug structures of other countries; the specific structure is not limited by this invention.

[0036] The input plug assembly 4 includes a movable base 401, on the bottom side of which pins 402 are installed, and on adjacent sides, contact springs 403 connected to the pins 402 are fixedly installed; a slot 4012 is provided on one side of the movable base 401, and a limiting block is slidably installed in the slot 4012. A push block 404 is connected to one side of the limiting block, and an elastic component is connected to the bottom of the slot 4012 on the other side of the limiting block.

[0037] The bottom shell 1 has through grooves 101 on the side of each input plug assembly 4. The inner side of the bottom shell 1 has limit grooves 102 at both the upper and lower ends near the through grooves 101, which are used to engage with one end of the limit block to fix the position of the input plug assembly 4. The limit grooves 102 on the bottom shell 1 provide a clear engagement position (extended and retracted state) for the limit block, ensuring that the input plug assembly 4 can be firmly locked after being pushed out, preventing poor contact caused by external force. The bottom of the bottom shell 1 has an opening for each group of input plug assemblies 4, and a limit assembly is slidably installed on one side of the opening.

[0038] The top surface of the top shell 2 is equipped with a socket structure, including a composite socket 9 compatible with Japanese, American, European, and British standard sockets. The socket structure also includes a protective door slidably installed on the inner bottom side of the top shell 2 to seal the composite socket 9. The composite socket 9 integrates multiple AC socket specifications on the top surface, allowing power from any input plug to supply power to various electrical appliance plugs, achieving "multi-national compatibility" for input and "wide compatibility" for output. The sliding protective door effectively prevents foreign objects from entering the composite socket 9, improving the electrical safety level during use.

[0039] The DC output socket 5 includes a circuit board electrically connected to the output socket assembly 3. A USB socket and a Type-C socket are mounted on one side of the circuit board, and the bottom shell 1 has corresponding ports for both the USB and Type-C sockets. By integrating both USB and Type-C mainstream DC charging interfaces into the circuit board built into the DC output socket 5, this adapter can not only convert AC sockets but also directly charge digital devices such as mobile phones and tablets, greatly enhancing the product's practicality and convenience and meeting the one-stop power needs of modern travelers.

[0040] The bottom shell 1 has limit slides 103 on both the left and right sides near the through groove 101 on its inner side. The movable seat 401 has sliding grooves 4011 on both the left and right sides that are slidably connected to the limit slides 103. The cooperation between the limit slides 103 on the bottom shell 1 and the sliding grooves 4011 on the movable seat 401 ensures that the movable seat 401 moves smoothly in a straight line during extension and retraction, avoiding skewness, jamming, or shaking. This ensures both smooth operation and accurate alignment of the pins 402 with the external socket.

[0041] The push block 404 is located on the outer side of the bottom shell 1 and is fixedly connected to the limiting block via a connecting strip. The connecting strip is slidably connected to the through groove 101. By placing the push block 404 on the outer side of the shell and having it linked to the internal limiting block via the connecting strip passing through the through groove 101, the user can operate it directly from the outside, making the design intuitive and easy to operate.

[0042] The movable base 401 has slots 4013 at both its upper and lower ends near the slot 4012, and the limiting block has claws at both its upper and lower ends. The claws are slidably engaged in the slots 4013. The slidable engagement of the claws on the limiting block with the slots 4013 on the movable base 401 securely restrains the limiting block on the movable base 401, preventing it from falling off. Furthermore, it restricts the movement of the limiting block to the depth direction of the slot 4012 (i.e., perpendicular to the sliding direction of the movable base 401), ensuring the accuracy and reliability of the locking action.

[0043] The elastic component is a spring 405, with its two ends abutting against the limiting block and the slot 4012, respectively. The spring 405 provides the elastic force, resulting in a simple, reliable, and low-cost structure. Its function is to consistently give the limiting block a tendency towards the locking position when the user is not operating the push block 404, ensuring that the input plug assembly 4 automatically remains locked in the non-operational state, thus enhancing stability and safety during use.

[0044] The limiting assembly includes limiting baffle 6, limiting baffle 7, and limiting baffle 8, which are slidably installed on the inner bottom wall of the bottom shell 1. Limiting baffle 6, limiting baffle 7, and limiting baffle 8 are respectively provided for plug assembly 1, plug assembly 2, and plug assembly 3. Limiting baffle 6 is an isosceles trapezoidal structure. Limiting baffle 7 and limiting baffle 8 are located on the left and right sides of limiting baffle 6, respectively, and each has a contact surface parallel to its inclined plane on the side closest to limiting baffle 6. Each limiting baffle 7 and limiting baffle 8 has a stop strip at the end near its contact surface. Each limiting baffle 6, limiting baffle 7, and limiting baffle 8 has a limiting protrusion on the side near the input plug assembly 4, and the limiting protrusion is a right-angled trapezoidal structure.

[0045] In use, if plug assembly one is needed, the corresponding push block 404 can be pressed to drive the plug assembly downwards. At this time, the pin 402 of plug assembly one will press against the inclined surface of the limiting protrusion of limiting baffle two 7, forcing it to move limiting baffle two 7. At this time, the inclined surface of limiting baffle two 7 will be in close contact with one side of the inclined surface of limiting baffle one 6 to prevent limiting baffle one 6 from moving. At the same time, the stop strip of limiting baffle two 7 is in close contact with the stop strip of limiting baffle three 8 to prevent limiting baffle three 8 from moving. In this way, limiting baffle one 6 and limiting baffle three 8 will be stably limited, realizing the stable blocking and limiting of plug assembly two and plug assembly three. If plug assembly three is needed, the same principle applies.

[0046] If plug assembly two is needed, the corresponding push block 404 can be pressed to drive plug assembly two downward. At this time, the pins 402 of plug assembly two will press the inclined surface of the limiting protrusion of the limiting baffle 6, forcing it to move the limiting baffle 6. This causes the inclined surfaces on both sides of the limiting baffle 6 to be tightly pressed against the contact surfaces of the limiting baffle 7 and the limiting baffle 8, respectively. At this time, the limiting baffle 7 and the limiting baffle 8 cannot move. That is, the corresponding limiting protrusion will stably block and limit plug assembly two and plug assembly three, preventing them from extending. This ensures that only one plug assembly can be fully extended at the same time, fundamentally preventing short circuits, electric shock hazards or mechanical interference that may be caused by multiple pins extending accidentally at the same time, and greatly improving the inherent safety of the product.

[0047] The working principle of this embodiment is as follows: The user selects and presses the push block 404 on the input plug assembly 4 corresponding to the national standard of their travel destination. The push block 404, through the connecting strip, drives the limiting block to slide within the slot 4012 of the moving base 401 and compress the spring 405, causing it to disengage from the limiting groove 102 on the bottom shell 1, thus releasing the lock on the input plug assembly 4. Subsequently, the user can push the assembly out along the limiting slide bar 103 of the bottom shell 1. During this process, its pins 402 will press against the limiting protrusion slope on the corresponding limiting assembly (limiting baffle 1 6, limiting baffle 2 7, or limiting baffle 3 8). Through the mechanical linkage between the slope and the stop bar, the other two input plug assemblies are automatically locked. Component 4 ensures that only one set of pins 402 can be fully extended at any given time. When the component moves to the fully extended position, the push block 404 is released, and the spring 405 resets, driving the limit block to engage with the corresponding limit groove 102 on the bottom shell 1, achieving a stable lock. At this time, the pins 402 form a reliable electrical connection with the conductive part of the output socket assembly 3 through the contact spring 403. After the power is distributed by the output socket assembly 3, one path is transmitted to the composite socket 9 of the top shell 2 to power various plugged-in electrical appliances, and the other path is transmitted to the circuit board of the DC output socket 5. After conversion, it charges digital devices through the USB socket or Type-C socket, thus realizing safe and reliable multi-national universal power conversion and output.

[0048] Finally, it should be noted that the output socket assembly 3 is a device existing in the prior art. It mainly consists of a fixed bracket and plug-in springs and connecting springs located at the upper and lower ends of the fixed bracket, respectively. The plug-in springs and connecting springs are electrically connected through copper pillars. The plug-in springs are correspondingly set with the composite socket 9, and the connecting springs are correspondingly set with the input plug assembly 4. When the input plug assembly 4 is extended, it can make contact with the contact spring 403 of the input plug assembly 4. Its power supply, specific composition and principle are clear to those skilled in the art and are common knowledge in the field, so they will not be described in detail.

[0049] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A multi-national universal adapter socket, comprising a bottom shell (1), a top shell (2), an output socket assembly (3), an input plug assembly (4), and a DC output socket (5); wherein the top shell (2) is connected to the bottom shell (1) by fasteners and forms an installation cavity, and the output socket assembly (3), the input plug assembly (4), and the DC output socket (5) are all installed within the installation cavity, characterized in that: The input plug assembly (4) is provided in three sets and is slidably installed on the inner side of the bottom shell (1); the DC output socket (5) is fixedly installed on the remaining inner side of the bottom shell (1); the input plug assembly (4) includes a movable base (401), and each of the bottom sides of the movable base (401) is equipped with a pin (402), and a contact spring (403) connected to the pin (402) is fixedly installed on the adjacent side; a slot (4012) is provided on one side of the movable base (401), a limit block is slidably installed in the slot (4012), a push block (404) is connected to one side of the limit block, and an elastic component is connected to the bottom of the slot (4012) on the other side of the limit block; The bottom shell (1) is provided with through grooves (101) on the side of the corresponding input plug assembly (4). The bottom shell (1) is provided with limit grooves (102) at both the upper and lower ends near the through grooves (101) on the inner side, which are used to engage with one end of the limit block to fix the position of the input plug assembly (4). The bottom of the base shell (1) has an opening corresponding to each input plug assembly (4), and a limit assembly is slidably installed on one side of the opening.

2. The multi-national universal adapter socket as described in claim 1, characterized in that: The top surface of the top shell (2) is provided with a socket structure, which includes a composite socket (9) compatible with Japanese, American, European and British standard sockets. The socket structure also includes a protective door that is slidably installed on the bottom side of the top shell (2) to seal the composite socket (9).

3. The multi-national universal adapter socket as described in claim 1, characterized in that: The DC output socket (5) includes a circuit board electrically connected to the output socket assembly (3). A USB socket and a Type-C socket are installed on one side of the circuit board. The bottom shell (1) is provided with a socket corresponding to both the USB socket and the Type-C socket.

4. The multi-national universal adapter socket as described in claim 1, characterized in that: The bottom shell (1) is provided with limiting slide bars (103) on both the left and right sides near the through groove (101) on the inner side, and the movable seat (401) is provided with slide grooves (4011) on both the left and right sides that are slidably connected to the limiting slide bars (103).

5. The multinational universal adapter socket as described in claim 1, characterized in that: The push block (404) is located on the outside of the bottom shell (1) and is fixedly connected to the limiting block by a connecting strip. The connecting strip is slidably connected to the through groove (101).

6. The multinational universal adapter socket as described in claim 1, characterized in that: The movable base (401) is provided with slots (4013) at both the upper and lower ends near the slot (4012), and the limiting block is provided with claws at both the upper and lower ends. The claws are slidably engaged and installed in the slots (4013).

7. The multinational universal adapter socket as described in claim 1, characterized in that: The elastic component is a spring (405), and the two ends of the spring (405) are respectively abutted against the limiting block and the slot (4012).

8. The multinational universal adapter socket as described in claim 1, characterized in that: The limiting assembly includes a first limiting baffle (6), a second limiting baffle (7), and a third limiting baffle (8) that are slidably installed on the inner bottom wall of the bottom shell (1). The first limiting baffle (6) is an isosceles trapezoidal structure. The second limiting baffle (7) and the third limiting baffle (8) are located on the left and right sides of the first limiting baffle (6), respectively, and each has a contact surface parallel to its inclined surface on the side near the first limiting baffle (6). The second limiting baffle (7) and the third limiting baffle (8) are each provided with a stop strip at the end near the contact surface. The first limiting baffle (6), the second limiting baffle (7), and the third limiting baffle (8) are each provided with a limiting protrusion on the side near the input plug assembly (4). The limiting protrusion is a right-angled trapezoidal structure.

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