A protective mechanism for a travel conversion socket

Abstract

The present invention discloses a socket protection mechanism, comprising a shell, the shell having at least two sockets, the shell having at least two movable blocks, the number of the sockets being equal to the number of the movable blocks, one socket corresponding to one movable block, the movable block being used to open and close the socket, when one of the at least two sockets is opened, the remaining sockets are closed by the corresponding movable block; an elastic member is provided between each movable block and the shell, the elastic member pushes the movable block to move to close the socket. The present invention can prevent two or more plugs from being inserted into the socket at the same time, when a plug is inserted into the socket, the corresponding movable block will open the socket, but at the same time the remaining movable blocks will close the remaining sockets, preventing two or more plugs from being inserted into the socket at the same time, thereby playing a role of safety protection.

Description

Technical Field

[0001] The invention relates to the technical field of sockets, and more particularly to a socket protection mechanism. Background Art

[0002] Existing travel conversion sockets can be plugged in two or more plugs at the same time. This socket sacrifices more important safety for the convenience of use. When two or more plugs are plugged in at the same time, overload and heat may occur, causing safety hazards, and it does not meet the requirements of the IEC 60884 standard (IEC 60884-2-5 Clause 14: The socket cannot be plugged in two or more plugs at the same time). Summary of the invention

[0003] Features and advantages of the invention are set forth in part in the following description, or may be obvious from the description, or may be learned through practice of the invention.

[0004] The object of the present invention is to provide a socket protection mechanism so that only one plug can be inserted into the socket at the same time.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: a protection mechanism for a travel conversion socket is provided, comprising a shell, the shell having at least two sockets, at least two movable blocks are arranged in the shell, the number of the sockets is equal to the number of the movable blocks, one socket corresponds to one movable block, the movable block is used to open and close the socket, when one of the at least two sockets is opened, the other sockets are closed by the corresponding movable block.

[0006] An elastic member is arranged between each movable stopper and the shell, and the elastic member pushes the movable stopper to move so as to close the socket.

[0007] The elastic member is a spring.

[0008] When the plug is pulled out of the socket, the restoring force of the spring moves the movable stopper to close the socket; springs are arranged between the first movable stopper, the second movable stopper and the third movable stopper and the housing.

[0009] The movable stopper is provided with a positioning portion, an end portion of one end of the spring is sleeved on the positioning portion, and the other end of the spring is against the housing.

[0010] The positioning portion is a positioning column.

[0011] The number of the sockets is equal to the number of the movable stops. The shell has three sockets, which are respectively a first socket, a second socket and a third socket. The shell is provided with three movable stops, which are respectively a first movable stopper, a second movable stopper and a third movable stopper. The first movable stopper is used to open and close the first socket, the second movable stopper is used to open and close the second socket, and the third movable stopper is used to open and close the third socket.

[0012] The second movable stopper is provided with a stopper, and the stopper is used to block the first movable stopper when the second movable stopper opens the second socket, or to block the second movable stopper when the first movable stopper opens the first socket.

[0013] The stopper is columnar.

[0014] The first movable stopper is in a shape of a Chinese character "U", the second movable stopper is in a shape of a Chinese character "J", and the third movable stopper is in a shape of a Chinese character "W".

[0015] The shell comprises an upper cover and a lower cover, and the upper cover and the lower cover are connected by screws.

[0016] The three movable blocks restrict each other; when a US or national standard two-pin plug is inserted, the first movable block moves to the right to open the first socket, and the second movable block is restricted from moving downward and the third movable block is restricted from moving downward through the stopper on the second movable block, thereby closing the second socket and the third socket, and restricting the insertion of the British or Australian plug into the socket; when a British three-pin plug is inserted, the second movable block moves downward to open the second socket, and as the second movable block moves downward, the third movable block moves downward due to the action of the spring, thereby closing the third socket, and the stopper on the second movable block blocks the right side of the first movable block, thereby restricting the first movable block from moving to the right, and restricting the insertion of the US or Australian plug into the socket; when an Australian plug is inserted, the third movable block moves upward to open the third socket, and at the same time the second movable block moves downward so that the stopper on the second movable block blocks the right side of the first movable block, thereby restricting the first movable block from moving to the right, and restricting the insertion of the US or British plug into the socket.

[0017] The present invention can prevent two or more plugs from being inserted into a socket at the same time. When a plug is inserted into the socket, the corresponding movable stopper will open the socket, but at the same time the other movable stoppers will close the remaining sockets, thereby preventing two or more plugs from being inserted into the socket at the same time, thereby playing a role of safety protection.

[0018] Description of the drawings

[0019] The present invention will be described in detail below with reference to the accompanying drawings and in combination with examples, and the advantages and implementation methods of the present invention will become more obvious. The contents shown in the accompanying drawings are only used to explain the present invention and do not constitute any limitation to the present invention in any sense. In the accompanying drawings:

[0020] Figure 1 Schematic diagram of the socket protection mechanism in an embodiment of the present invention.

[0021] Figure 2 This is a state diagram of the first socket being opened in an embodiment of the present invention.

[0022] Figure 3 This is a state diagram of the second socket being opened in an embodiment of the present invention.

[0023] Figure 4 This is a state diagram of the third socket being opened in an embodiment of the present invention. DETAILED DESCRIPTION

[0024] like Figure 1 As shown, the socket protection mechanism proposed in the embodiment of the present invention includes a housing 10, and the housing includes an upper cover and a lower cover, and the upper cover and the lower cover are connected by screws. The housing 10 has at least two sockets, and at least two movable blocks are arranged in the housing 10. The number of the sockets is equal to the number of the movable blocks, and one socket corresponds to one movable block. The movable block is used to open and close the socket. When at least one of the two sockets is opened, the remaining sockets are closed by the corresponding movable block. In this way, two or more plugs can be prevented from being inserted into the socket at the same time. When a plug is inserted into the socket, the corresponding movable block will open the socket, but at the same time, the remaining movable blocks will close the remaining sockets, preventing two or more plugs from being inserted into the socket at the same time, thereby playing a role of safety protection.

[0025] In this embodiment, there are three sockets on the shell 10, which are respectively a first socket 11, a second socket 12 and a third socket 13. Three movable stops are provided in the shell, which are respectively a first movable stopper 14, a second movable stopper 15 and a third movable stopper 16. The first movable stopper 14 is used to open and close the first socket 11, the second movable stopper 15 is used to open and close the second socket 12, and the third movable stopper 16 is used to open and close the third socket 13.

[0026] In this embodiment, the first moving stopper is in a square shape, the second moving stopper is in a square shape, and the third moving stopper is in a W shape. The first moving stopper, the second moving stopper and the third moving stopper are in a sheet shape.

[0027] An elastic member 18 is provided between each movable stopper and the housing 10, and the elastic member pushes the movable stopper to move to close the socket. In this embodiment, the elastic member 18 is a spring. When the plug is pulled out of the socket, the movable stopper is moved by the restoring force of the spring to close the socket. A positioning portion 19 is provided on the movable stopper, and the end of one end of the spring is sleeved on the positioning portion 19, and the other end of the spring is against the housing 10. In this embodiment, the positioning portion 19 is a fixed column.

[0028] Springs are provided between the first moving stopper 14 , the second moving stopper 15 , and the third moving stopper 16 and the housing 10 , and positioning portions 19 are provided on the first moving stopper 14 , the second moving stopper 15 , and the third moving stopper 16 .

[0029] The second movable stopper 15 is provided with a stopper 17, which is used to block the first movable stopper 11 when the second movable stopper opens the second socket 12 or to block the second movable stopper when the first movable stopper opens the first socket 11. In this embodiment, the stopper 17 is columnar.

[0030] In this embodiment, the first socket corresponds to a US standard or a national standard two-pin plug; the second socket corresponds to a UK standard plug; and the third socket corresponds to an Australian standard plug.

[0031] like Figure 1 As shown, when no plug is inserted, the first socket 11, the second socket 12 and the third socket 13 are all in a closed state.

[0032] like Figure 2 As shown, when a US standard or national standard two-pin plug is inserted, the first movable stopper 14 moves to the right to open the first socket 11 (the plug will squeeze the first movable stopper so that the first movable stopper moves to the right), and at this time, due to the existence of the stopper 17 on the second movable stopper 15, the second movable stopper 15 is restricted from moving downward, and the third movable stopper 16 is restricted from moving downward, thereby closing the second socket and the third socket, that is, preventing the British standard or Australian standard plug from being inserted into the socket.

[0033] like Figure 3 As shown, when a British three-pin plug is inserted, the second movable stopper 15 moves downward to open the second socket 12. As the second movable stopper 15 moves downward, the third movable stopper 16 moves downward due to the action of the spring to close the third socket. At the same time, as the second movable stopper 15 moves downward, the stopper on the second movable stopper 15 blocks the right side of the first movable stopper, thereby limiting the first movable stopper from moving to the right, i.e., preventing the insertion of a US or Australian plug.

[0034] like Figure 4As shown, when the Australian plug is inserted, the third movable stopper 16 moves upward to open the third socket 13, and the second movable stopper 15 also moves downward so that the stopper on the second movable stopper 15 blocks the right side of the first movable stopper 14, thereby limiting the first movable stopper 14 from moving rightward, that is, preventing the insertion of the American or Australian plug. It should be noted that when the Australian plug is inserted into the socket, there is no space on the socket for the British plug to be inserted into the socket.

[0035] The present invention ensures that only one plug can be inserted into the socket when the socket is working by mutual restriction between the three movable blocks, thereby avoiding the problem of excessive working current that may occur when multiple plugs are inserted into the socket at the same time, and ensuring safety in use.

[0036] Compared with the common conversion sockets on the market that can insert multiple plugs at the same time, which do not take into account the problem of overload and heating that may occur during use, the socket protection mechanism of the present invention can prevent two or more plugs from being inserted into the socket at the same time. When a plug is inserted into the socket, the corresponding movable block will open the socket, but at the same time the remaining movable blocks will close the remaining sockets, preventing two or more plugs from being inserted into the socket at the same time, thereby playing a role of safety protection.

[0037] The socket protection mechanism of the present invention can be used on fixed and mobile sockets, and is also suitable for conversion sockets used by high-power electrical appliances with higher potential dangers, such as air conditioners, water heaters, and electric heaters.

[0038] The preferred embodiments of the present invention are described above with reference to the accompanying drawings. A person skilled in the art may implement the present invention in a variety of variations without departing from the scope and essence of the present invention. For example, a feature shown or described as part of one embodiment may be used in another embodiment to obtain another embodiment. The above are only preferred feasible embodiments of the present invention, and do not limit the scope of rights of the present invention. Any equivalent changes made using the contents of the present specification and the accompanying drawings are included in the scope of rights of the present invention.

Claims

1. A protective mechanism for a travel adapter socket, comprising a housing, the housing having at least two sockets, characterized in that: At least two movable blocks are arranged in the housing, the number of the sockets is equal to the number of the movable blocks, one socket corresponds to one movable block, the movable block is used to open and close the socket, when one of the at least two sockets is opened, the other sockets are closed by the corresponding movable block; An elastic member is provided between each movable stopper and the housing, and the elastic member pushes the movable stopper to move to close the socket; the elastic member is a spring; when the plug is pulled out of the socket, the movable stopper is moved by the restoring force of the spring to close the socket; springs are provided between the first movable stopper, the second movable stopper and the third movable stopper and the housing; The shell has three sockets, which are respectively a first socket, a second socket and a third socket. The shell is provided with three movable blocks, which are respectively a first movable block, a second movable block and a third movable block. The first movable block is used to open and close the first socket, the second movable block is used to open and close the second socket, and the third movable block is used to open and close the third socket. The second movable stopper is provided with a stopper, and the stopper is used to block the first movable stopper when the second movable stopper opens the second socket, or to block the second movable stopper when the first movable stopper opens the first socket; The first movable stopper is in a shape of a Chinese character "U", the second movable stopper is in a shape of a Chinese character "J", and the third movable stopper is in a shape of a Chinese character "W"; The three movable blocks restrict each other; when a US or national standard two-pin plug is inserted, the first movable block moves to the right to open the first socket, and the second movable block is restricted from moving downward and the third movable block is restricted from moving downward through the stopper on the second movable block, thereby closing the second socket and the third socket, and restricting the insertion of the British or Australian plug into the socket; when a British three-pin plug is inserted, the second movable block moves downward to open the second socket, and as the second movable block moves downward, the third movable block moves downward due to the action of the spring, thereby closing the third socket, and the stopper on the second movable block blocks the right side of the first movable block, thereby restricting the first movable block from moving to the right, and restricting the insertion of the US or Australian plug into the socket; when an Australian plug is inserted, the third movable block moves upward to open the third socket, and at the same time the second movable block moves downward so that the stopper on the second movable block blocks the right side of the first movable block, thereby restricting the first movable block from moving to the right, and restricting the insertion of the US or British plug into the socket.

2. The protective mechanism of the travel adapter according to claim 1, characterized in that: The movable stopper is provided with a positioning portion, an end portion of one end of the spring is sleeved on the positioning portion, and the other end of the spring is against the housing.

3. The protection mechanism of the travel adapter according to claim 2, characterized in that: The positioning portion is a positioning column.

4. The protection mechanism of the travel adapter according to claim 1, characterized in that: The stopper is columnar.

5. The protection mechanism of the travel adapter according to claim 1, characterized in that: The shell comprises an upper cover and a lower cover, and the upper cover and the lower cover are connected by screws.

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