Power adapter with combined plug

Abstract

The utility model provides a power adapter with a combined plug, which comprises a shell, a sliding rail arranged on the inner wall of the shell, and a plug seat arranged on the sliding rail and connected with the sliding rail in a sliding manner, and two symmetrical surfaces of the plug seat along the sliding direction of the sliding rail are a first plug surface and a second plug surface. The first plug surface is provided with a two-pin plug, and a first through hole corresponding to the two-pin plug in position is formed in the shell; a three-pin plug is arranged on the second plug surface, and a second through hole corresponding to the three-pin plug in position is formed in the shell; the side wall of the plug seat is provided with a first charging jack, and the housing is provided with a first opening corresponding to the position of the charging jack.

Description

Technical Field

[0001] The utility model relates to the technical field of power adapters, in particular to a power adapter with a combined plug. Background Art

[0002] A power adapter is a power conversion device for small portable electronic devices and electronic appliances.

[0003] Functionally, it converts mains electricity (typically 220V AC) into low-voltage DC power suitable for devices. A common example of a power adapter is a mobile phone charger, which converts AC power into approximately 5V DC power suitable for mobile phones. Its construction primarily consists of a housing, transformer, rectifier circuit, and filter circuit. The housing provides protection, the transformer regulates the voltage, the rectifier circuit converts AC power into DC power, and the filter circuit smoothes and stabilizes the output DC power. Power adapters come in different sizes, and the output voltage and current vary depending on the device they are used for. When using a power adapter, ensure that its output parameters match the device's requirements; otherwise, damage may occur to the device or power may not be supplied properly.

[0004] Existing power adapters usually only have two or three prong plugs. When the sockets on a power strip are insufficient, a single type of plug cannot match the sockets. Utility Model Content

[0005] In order to overcome the above technical problems, the utility model provides a power adapter with a combined plug, which is used to improve the problem that the plug is not suitable for the socket.

[0006] In order to achieve the above-mentioned objectives, the present utility model proposes a power adapter with a combination plug, comprising a shell, a slide rail arranged on the inner wall of the shell, a plug socket mounted on the slide rail and connected to the slide rail, the two symmetrical surfaces of the plug socket along the sliding direction of the slide rail being a first plug surface and a second plug surface, the first plug surface being provided with two-terminal plugs, and the shell being provided with a first through hole corresponding to the positions of the two-terminal plugs; the second plug surface being provided with a three-terminal plug, and the shell being provided with a second through hole corresponding to the positions of the three-terminal plugs; the side wall of the plug socket being provided with a first charging socket, and the shell being provided with a first opening corresponding to the position of the charging socket.

[0007] Preferably, a cable clamp capable of clamping a charging cable is provided at the first opening.

[0008] Preferably, the wire clamp is rotationally connected to the edge of the first opening via a return spring.

[0009] Preferably, the wire clamp is a hook-shaped structure.

[0010] Preferably, a winding post is formed on the side wall of the plug socket next to the first charging socket.

[0011] Preferably, a winding ridge is formed on the winding post.

[0012] Preferably, the winding post is a segmented telescopic structure, and a spring is provided inside the winding post. One end of the spring abuts against the side wall of the plug socket, and the other end abuts against the top inner wall of the winding post.

[0013] Preferably, a second charging socket is provided on the top of the plug socket, and a second opening corresponding to the second charging socket is formed on the shell.

[0014] The power adapter with a combination plug provided by the utility model is adapted to the connection of various sockets by arranging a multi-purpose power adapter with different plugs that can be pushed out from both ends within a housing. This adapts the power adapter to the problem of charging failure caused by insufficient sockets or different socket structures, thereby expanding the application field of the power adapter. At the same time, since one end of the plug socket is inserted into the power strip when in use, the other end is automatically retracted into the housing, thereby ensuring the safety of electricity use during use. The housing serves the function of storing and isolating electricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the three-dimensional structure of a power adapter provided in an embodiment of the present utility model;

[0016] Figure 2 A schematic structural diagram of a slide rail provided in an embodiment of the present utility model;

[0017] Figure 3 A schematic structural diagram of a winding column provided in an embodiment of the present utility model;

[0018] Figure 4 A schematic structural diagram of a winding post with a telescopic structure provided in an embodiment of the present utility model.

[0019] Description of Reference Numerals

[0020] 1. Housing; 2. Slide rail; 3. Plug socket; 4. First plug surface; 5. Second plug surface; 6. Two-prong plug; 7. First through-hole; 8. Three-prong plug; 9. Second through-hole; 10. First charging socket; 11. First opening; 12. Wire clamp; 13. Return spring 16; 14. Winding post; 15. Winding ridge; 16. Spring; 17. Second charging socket; 18. Second opening. DETAILED DESCRIPTION

[0021] The following describes embodiments of the present invention with reference to the accompanying drawings. Elements and features described in one drawing or one embodiment of the present invention may be combined with elements and features shown in one or more other drawings or embodiments. It should be noted that for the sake of clarity, the drawings and descriptions omit the representation and description of components or processes that are not relevant to the present invention and are known to those of ordinary skill in the art.

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] like Figures 1 to 4 As shown, the power adapter with a combination plug provided by the utility model includes a shell 1, a slide rail 2 arranged on the inner wall of the shell 1, a plug socket 3 mounted on the slide rail 2 and connected to the slide rail 2, and the two symmetrical surfaces of the plug socket 3 along the sliding direction of the slide rail 2 are a first plug surface 4 and a second plug surface 5. The first plug surface 4 is provided with a two-prong plug 6, and a first through hole 7 corresponding to the position of the two-prong plug 6 is formed on the shell 1; the second plug surface 5 is provided with a three-prong plug 8, and a second through hole 9 corresponding to the position of the three-prong plug 8 is formed on the shell 1; a first charging socket 10 is provided on the side wall of the plug socket 3, and a first opening 11 corresponding to the position of the charging socket is formed on the shell 1.

[0024] A slide rail 2 is provided within the housing 1, and a plug socket 3 is mounted on the slide rail 2. The plug socket 3 can slide along the length of the slide rail 2, allowing the two-prong plug 6 and the three-prong plug 8 to be interchangeably extended on either side of the housing 1. When the two-prong plug 6 is needed, one side of the three-prong plug 8 is pushed, causing it to apply pressure to the second plug surface 5, which in turn moves the plug socket 3 along the slide rail 2 toward the other end of the housing 1. As the plug socket 3 moves, the two-prong plug 6 is ejected from the housing 1, and the plug blades of the two-prong plug 6 extend through a first through-hole 7 provided in the housing 1. When the slide rail 2 pushes the plug socket 3 to the end, the plug socket 3 is locked or retracted by a resilient engaging structure, preventing the two-prong plug 6 from retracting when inserted into the power strip. The three-prong plug 8 is now fully retracted into the housing 1 through a second through-hole 9. The second through-hole 9 can be provided with an automatic sealing structure, such as a rubber membrane with a central opening, or an elastic baffle, to isolate the power when the two-prong plug 6 is used to connect to the power supply, preventing leakage to the user.

[0025] When only three-wire sockets remain on the power strip, the two-wire plug 6 is pushed into the housing 1, disengaging the plug socket 3 from its locked state. The plug socket 3 is then moved toward the other end, pushing the three-wire plug 8 out of the second through-hole 9. Once the plug socket 3 has reached its end, the elastic locking structure within the housing 1 engages or locks the plug socket 3, keeping it in a stable, fixed position. The two-wire plug is then retracted into the housing 1, and the automatic sealing structure provided on the first through-hole 7, such as a rubber membrane with a central opening or an elastic baffle, completely seals the two-wire plug 6 within the housing 1, isolating it from internal power. At this point, the three-wire plug 8 is used to energize the first charging socket 10, thus achieving the desired functionality of a compact, multi-purpose power adapter.

[0026] In one embodiment of the present invention, a cable clamp 12 capable of clamping a charging cable is provided at the first opening 11 .

[0027] A wire clamp 12 is provided at the first opening 11. After the charging cable is inserted into the first charging socket 10, the charging cable is clamped at the first opening 11. Even if the charging cable swings back and forth during charging, it will not cause wear on the connection between the charging cable head and the wire. A portion of the wire is received into the interior of the housing 1 through the first opening 11, protecting the wire and the wire plug from being pulled, scratched, or worn.

[0028] In one embodiment of the present invention, the wire clamp 12 is rotatably connected to the edge of the first opening 11 via a return spring 16 .

[0029] The wire clamp 12 is rotatably connected to the first opening 11 and is equipped with a return spring 16. The wire clamp 12 can clamp the wire of the charging cable through elastic contact, so that the wire is held down by the wire clamp 12 and will not move easily, thereby ensuring that the charging plug at the charging socket and the wire will not swing back and forth, causing wear on the connection, thereby extending the service life of the charging cable.

[0030] In one embodiment of the present invention, the wire clamp 12 is a hook-shaped structure.

[0031] The hook-shaped wire clamp 12 can better fix the charging wire with a curved structure, and the matching degree is higher when clamping the wire.

[0032] In one embodiment of the present invention, a winding post 14 is formed on a side wall of the plug socket 3 next to the first charging socket 10 .

[0033] A winding post 14 is provided on the plug socket 3, and a portion of the wire can be wound around the winding post 14, which not only protects the connection between the wire and the charging plug from wear, but also reduces the excessive bending damage between the wire and the charging plug caused by external pulling on the wire.

[0034] In one embodiment of the present invention, a winding ridge 15 is formed on the winding post 14 .

[0035] The winding ridges 15 formed on the winding post 14 can facilitate the winding of the wire and further increase the friction between the wire and the wire, thereby better protecting the connection between the charging plug and the wire.

[0036] In one embodiment of the present invention, the winding post 14 is a segmented telescopic structure, and a spring 16 is provided inside the winding post 14 . One end of the spring 16 abuts against the side wall of the plug socket 3 , and the other end abuts against the top inner wall of the winding post 14 .

[0037] The winding post 14 is configured as a telescopic rod structure, which can be freely extended and retracted. When the wire wrapped around the winding post 14 needs to be removed, there is no need to undo the wire one by one. The winding post 14 can be simply pressed down. After the winding post 14 contracts, the wire naturally falls off the winding post 14, saving operation steps.

[0038] In one embodiment of the present invention, a second charging socket 17 is provided on the top of the plug socket 3 , and a second opening 18 corresponding to the second charging socket is formed on the housing 1 .

[0039] The second charging socket 17 is provided on the top of the plug socket 3 to increase the number of connected charging plugs, so that the plug socket 3 can meet the simultaneous charging function of more charging devices, thereby expanding the use efficiency.

[0040] The power adapter with a combination plug provided by the utility model is adapted to the connection of various sockets by arranging a power adapter with a multi-purpose structure in a housing 1, wherein different plugs can be pushed out from both ends. Thus, the power adapter can adapt to the charging failure caused by insufficient sockets or different socket structures, thereby expanding the application field of the power adapter. At the same time, since one end of the plug socket 3 is inserted into the power strip when in use, the other end is automatically retracted into the housing 1, thereby ensuring the safety of electricity use during use. The housing 1 serves the function of storing and isolating electricity.

[0041] Although the present invention and its advantages have been described in detail, it should be understood that various changes, substitutions and conversions can be made without exceeding the spirit and scope of the present invention as defined by the appended claims. Moreover, the scope of this application is not limited to the specific embodiments of the processes, devices, means, methods and steps described in the specification. It will be readily understood by those skilled in the art from the disclosure of the present invention that existing and future processes, devices, means, methods or steps to be developed that perform substantially the same functions as the corresponding embodiments described herein or obtain substantially the same results as the corresponding embodiments described herein can be used according to the present invention. Therefore, the appended claims are intended to include such processes, devices, means, methods or steps within their scope.

Claims

1. A power adapter with a combination plug, characterized in that: The invention comprises a housing (1), a slide rail (2) arranged on the inner wall of the housing (1), and a plug socket (3) mounted on the slide rail (2) and connected to the slide rail (2) by sliding. The two symmetrical surfaces of the plug socket (3) along the sliding direction of the slide rail (2) are a first plug surface (4) and a second plug surface (5). The first plug surface (4) is provided with two-terminal plugs (6), and the housing (1) is formed with a first through hole (7) corresponding to the position of the two-terminal plugs (6); the second plug surface (5) is provided with a three-terminal plug (8), and the housing (1) is formed with a second through hole (9) corresponding to the position of the three-terminal plug (8); a first charging socket (10) is provided on the side wall of the plug socket (3), and the housing (1) is formed with a first opening (11) corresponding to the position of the charging socket.

2. The power adapter with a combination plug according to claim 1, characterized in that: A wire clamp (12) capable of clamping a charging wire is provided at the first opening (11).

3. The power adapter with a combination plug according to claim 2, characterized in that: The wire clamp (12) is rotationally connected to the edge of the first opening (11) via a return spring (16).

4. The power adapter with a combination plug according to claim 3, characterized in that: The wire clamp (12) is a hook-shaped structure.

5. The power adapter with a combination plug according to claim 4, characterized in that: A winding post (14) is formed on the side wall of the plug socket (3) next to the first charging socket (10).

6. The power adapter with a combination plug according to claim 5, characterized in that: A winding ridge (15) is formed on the winding post (14).

7. The power adapter with a combination plug according to claim 6, characterized in that: The winding post (14) is a segmented telescopic structure, and a spring (16) is provided inside the winding post (14). One end of the spring (16) abuts against the side wall of the plug seat (3), and the other end abuts against the top inner wall of the winding post (14).

8. The power adapter with a combination plug according to claim 7, characterized in that: A second charging socket (17) is provided on the top of the plug socket (3), and a second opening (18) corresponding to the second charging socket is formed on the housing (1).

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