Conversion socket

Abstract

The utility model relates to a conversion socket, in particular to a conversion socket with a three-pin folding plug and a telescopic data line, which comprises the three-pin plug provided with a live wire insertion piece, a zero line insertion piece and a ground wire insertion piece, and a shell in running fit with the three-pin plug, the shell is internally provided with a first contact piece, a second contact piece and a third contact piece which are respectively and electrically connected with the live wire insertion piece, the zero wire insertion piece and the ground wire insertion piece, the shell is also internally provided with a charging wire and a tightening device which is matched with the charging wire to unwind, and the shell is provided with a through hole which is matched with the charging wire. In addition, a tightening device of the charging wire is additionally arranged in the shell, the charging wire can be stretched so as to be convenient to use, and the charger further has the advantages of being simple in structure, convenient to machine, easy to assemble and high in practicability.

Description

Technical Field

[0001] This utility model relates to a converter socket, and more particularly to a converter socket with a three-pronged folding plug and a retractable data cable. Background Technology

[0002] The 118-type and 86-type wall sockets on the market are sometimes limited in function due to insufficient sockets, which led to the development of adapter sockets. However, most adapter sockets on the market currently have two-prong plugs, which greatly reduces safety as living standards improve. Furthermore, the sockets lack functional extensions, such as retractable charging cables, as is the case with the patent with publication number CN116131018A entitled "A Folding Adapter Socket". How to solve the above-mentioned problems is the technical problem that this application aims to address. Utility Model Content

[0003] In view of the shortcomings of existing technology, this utility model provides a conversion socket.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a conversion socket, characterized in that it includes a three-prong plug equipped with a live wire prong, a neutral wire prong, and a ground wire prong, and also includes a housing that rotatably engages with the three-prong plug. The housing contains a first contact, a second contact, and a third contact that are electrically connected to the live wire prong, the neutral wire prong, and the ground wire prong, respectively. The housing also contains a charging cable and a tightening device for unwinding the charging cable. The housing has a through hole for the charging cable.

[0005] The housing has a groove for accommodating a three-prong plug. The groove has a limiting groove for matching the live wire, neutral wire, and ground wire prongs. The three-prong plug can be rotated and stored in the groove.

[0006] The groove is located on the back of the housing.

[0007] The three-prong plug is provided with a connecting part that extends the position of the three-prong plug, and the three-prong plug is extended by cooperating with the connecting part.

[0008] The connecting part is provided with a protrusion that rotates with the housing, and the groove wall is provided with a limiting hole that matches the protrusion. The three-pronged plug is inserted into the limiting hole through the protrusion to achieve rotational engagement with the housing.

[0009] The groove is provided with a guide surface to facilitate the insertion of the protrusion into the limiting hole.

[0010] The three-prong plug is provided with a flange for easy hand rotation.

[0011] The housing has a recessed portion for engaging the hand at a position relative to the flange.

[0012] The tightening device includes an inner shell installed inside the housing. The inner shell has a reel for winding the charging cable and is rotatably engaged with the inner shell. The reel has an elastic device that forces the charging cable back into the reel. The charging cable can extend and retract at the through hole through the cooperation of the elastic device and the reel.

[0013] The charging cable has a charging head at one end, and a groove for accommodating the charging head is provided at the bottom of the housing relative to the through hole. The charging head is fixedly contained in the groove by a tight fit.

[0014] The beneficial effects of this utility model are as follows: This utility model changes the adapter socket into a three-prong socket and adds a grounding plug, which improves safety. In addition, a charging cable tightening device is added inside the housing, which can stretch the charging cable for easy use. This utility model also has the characteristics of simple structure, convenient processing and easy assembly, and strong practicality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is an exploded view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of this utility model after the partial shell is hidden;

[0018] Figure 4 This is a schematic diagram of the structure of the present invention after the three-prong plug has been removed;

[0019] Figure 5 This is a schematic diagram of the structure of the three-prong plug of this utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the shell of this utility model;

[0021] Figure 7 This is an exploded view of the tightening device of this utility model;

[0022] Figure 8 This is a schematic diagram of the structure of the limiting block and the reel of this utility model.

[0023] In the diagram: 110, live wire connector; 120, neutral wire connector; 130, ground wire connector; 100, three-prong plug; 200, housing; 210, first contact piece; 220, second contact piece; 230, third contact piece; 310, charging cable; 300, tightening device; 240, through hole; 280, power switch; 281, USB interface; 282, USB Type-C interface; 250, groove; 251, limiting groove; 140, connecting part; 141, protrusion; 252, limiting hole; 253, guide surface; 260, recessed part; 320, inner shell; 330, reel; 331, guide groove; 332, slot; 333, first stop part; 334, second stop part; 340, limiting block; 311, charging head; 270, groove. Detailed Implementation

[0024] like Figures 1-8 As shown, a converter socket includes a three-prong plug 100 with a live wire prong 110, a neutral wire prong 120, and a ground wire prong 130, and a housing 200 rotatably engaged with the three-prong plug 100. The housing 200 contains a first contact 210, a second contact 220, and a third contact 230 that are electrically connected to the live wire prong 110, the neutral wire prong 120, and the ground wire prong 130, respectively. The housing 200 also contains a charging cable 310 and a tightening device 300 for unwinding the charging cable 310. The housing 200 has a through hole 240 for the charging cable 310. Power sockets can be provided on the front and sides of the housing 200. A power switch 280 can also be provided on the front. A USB interface 281 and a USB Type-C interface 282 can also be provided on the bottom of the housing 200 to meet the power supply requirements of modern electronic devices.

[0025] The housing 200 is provided with a groove 250 for accommodating the three-prong plug 100. The groove 250 is provided with a limiting groove 251 that matches the live wire plug 110, the neutral wire plug 120 and the ground wire plug 130. The three-prong plug 100 can be rotated and stored in the groove 250. The groove 250 can hide the plug, which is not only aesthetically pleasing but also convenient to carry.

[0026] The groove 250 is provided on the back of the housing 200, preferably on the back, and the three-prong plug 100 is hidden on the back of the housing 200 through the groove 250.

[0027] The three-prong plug 100 is provided with a connecting part 140 that extends the position of the three-prong plug 100. The three-prong plug 100 is extended by cooperating with the connecting part 140. Some three-prong plugs 100 may block the plugs of other electrical devices when plugged into the socket. Therefore, the addition of the connecting part 140 extends the position of the three-prong plug 100, which can avoid other plugs and is highly practical.

[0028] The connecting part 140 is provided with a protrusion 141 that rotatably engages with the housing 200. The groove wall of the groove 250 is provided with a limiting hole 252 that engages with the protrusion 141. The three-prong plug 100 is inserted into the limiting hole 252 through the protrusion 141 to achieve rotatable engagement with the housing 200. The wires of the live wire plug 110, the neutral wire plug 120 and the ground wire plug 130 can be connected to the housing 200 from the protrusion 141.

[0029] The groove 250 is provided with a guide surface 253 to facilitate the insertion of the protrusion 141 into the limiting hole 252. The addition of the guide surface 253 makes it very convenient for the protrusion 141 to be inserted into the limiting hole 252, which is highly practical.

[0030] The three-prong plug 100 is provided with a flange 160 for easy hand rotation of the three-prong plug 100. The flange 160 makes it easy to open the three-prong plug 100 from the groove 250.

[0031] The housing 200 has a recessed portion 260 for accommodating the hand at a position relative to the flange 160. Since the three-prong plug 100 is completely hidden in the groove 250, it is inconvenient to open. The addition of the recessed portion 260 makes it easy to open the three-prong plug 100, which is highly practical.

[0032] The tightening device 300 includes an inner shell 320 installed within the housing 200. The inner shell 320 contains a reel 330 for winding the charging cable 310 and rotatably engaging with the inner shell 320. The reel 330 contains an elastic device (not shown in the figure) that forces the charging cable 310 back into the reel 330. The charging cable 310 extends and retracts at the through hole 240 through the cooperation of the elastic device and the reel 330. The technology for extending and retracting the charging cable 310 is mature, as seen in publication number CN219717439U, entitled "A Telescopic Power Strip". The patents CN106877059A and CN217115068U, titled "Retractable Charging Cable 310 Structure and Socket with Retractable Charging Cable 310 Structure," use a reel 330 structure with a torsion spring elastic device, primarily for retracting the charging cable 310 into the inner shell 320. A limiting block 340 is located on the back of the reel 330 to limit its movement. The limiting block 340 rotates... Attached to the inner shell 320, the back of the reel 330 is provided with a guide groove 331 that cooperates with the limiting block 340. The guide groove 331 has a locking groove 332 that limits the limiting block 340. The guide groove 331 also has a first stop portion 333 and a second stop portion 334 that guide the rotation of the limiting block 340. When the charging cable 310 is fully pulled out, it is elastically retracted with the help of an elastic device, but is limited by the cooperation of the limiting block 340 and the locking groove 332. After using the charging cable 310, pull it again. When the limiting block 340 rotates in cooperation with the first stop 333, it returns to the internal open guide groove 331, and the charging cable 310 is completely retracted into the inner shell 320. When the charging cable 310 needs to be pulled out again, the limiting block 340 rotates in cooperation with the second stop 334 and goes into the external open guide groove 331, allowing the charging cable 310 to be stretched freely. When stretched to the maximum, the charging cable 310 is released. The cooperation between the limiting block 340 and the slot 332 limits the charging cable 310, thus returning it to the stretched state.

[0033] The end of the charging cable 310 is provided with a charging head 311. The bottom of the housing 200 and the position relative to the through hole 240 are provided with a groove 270 for accommodating the charging head 311. The charging head 311 is fixedly limited in the groove 270 by a tight fit. The groove 270 can hold the charging head 311 to store it.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Simple modifications and substitutions made by those skilled in the art without departing from the spirit and scope of this utility model are within the protection scope of this utility model.

Claims

1. A converter socket, characterized in that, The device includes a three-prong plug (100) with a live wire prong (110), a neutral wire prong (120), and a ground wire prong (130), and a housing (200) that rotatably engages with the three-prong plug (100). The housing (200) contains a first contact (210), a second contact (220), and a third contact (230) that are electrically connected to the live wire prong (110), the neutral wire prong (120), and the ground wire prong (130), respectively. The housing (200) also contains a charging cable (310) and a tightening device (300) that works with the unwinding of the charging cable (310). The housing (200) has a through hole (240) for the charging cable (310).

2. A converter socket as described in claim 1, characterized in that, The housing (200) is provided with a groove (250) for accommodating a three-prong plug (100). The groove (250) is provided with a limiting groove (251) for matching the live wire plug (110), the neutral wire plug (120) and the ground wire plug (130). The three-prong plug (100) is rotated and stored in the groove (250).

3. A converter socket as described in claim 2, characterized in that, The groove (250) is provided on the back of the housing (200).

4. A converter socket as described in claim 2, characterized in that, The three-prong plug (100) is provided with a connecting part (140) that extends the position of the three-prong plug (100), and the three-prong plug (100) is extended by cooperating with the connecting part (140).

5. A converter socket as described in claim 4, characterized in that, The connecting part (140) is provided with a protrusion (141) that rotates with the housing (200). The groove wall of the groove (250) is provided with a limiting hole (252) that matches the protrusion (141). The three-prong plug (100) is inserted into the limiting hole (252) through the protrusion (141) to achieve rotational engagement with the housing (200).

6. A converter socket as described in claim 5, characterized in that, The groove (250) is provided with a guide surface (253) to facilitate the insertion of the protrusion (141) into the limiting hole (252).

7. A converter socket as described in claim 2, characterized in that, The three-prong plug (100) is provided with a flange (160) for easy hand rotation of the three-prong plug (100).

8. A converter socket as described in claim 7, characterized in that, The housing (200) has a recess (260) for engaging the hand at a position relative to the flange (160).

9. A converter socket as described in claim 1, characterized in that, The tightening device (300) includes an inner shell (320) installed inside the housing (200). The inner shell (320) is provided with a reel (330) for winding the charging cable (310) and rotatably cooperating with the inner shell (320). The reel (330) is provided with an elastic device that forces the charging cable (310) to retract into the reel (330). The charging cable (310) achieves extension and retraction at the through hole (240) through the cooperation of the elastic device and the reel (330).

10. A converter socket as described in claim 9, characterized in that, The charging cable (310) has a charging head (311) at its end. The bottom of the housing (200) and the position relative to the through hole (240) have a groove (270) for accommodating the charging head (311). The charging head (311) is fixedly located in the groove (270) by a tight fit.

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