A power adapter

Abstract

The application relates to the technical field of power adapters, in particular to a power adapter. The power adapter comprises a main body, a base and two pins; the two ends of the two pins are respectively a rotating mounting end and a plug-in end; the rotating mounting end is rotatably mounted on the base, so that when the two pins rotate, the plug-in ends of the two pins are close to or away from each other; the plug-in end extends out of the base and is used for being plugged into a socket hole. The base is mounted on one end of the main body, and the main body is provided with a driving structure; the driving structure is used for driving the pins to rotate, so that the plug-in ends of the two pins are close to or away from each other. The driving structure drives the plug-in ends of the two pins to rotate outward to be opened or rotate inward to be tightened, so that the pins are tightly abutted with spring sheets inside the socket, thereby increasing the contact pressure, and further significantly enhancing the holding force and friction between the pins and the socket, and effectively preventing the loosening and falling problems caused by insufficient clamping force of the socket hole.

Description

Technical Field

[0001] This invention relates to the field of power adapter technology, and in particular to a power adapter. Background Technology

[0002] As an indispensable power supply component for electronic devices, the power adapter connects to an external power outlet via its prongs. In practical use, the power adapter establishes an electrical connection by mating its prongs with the sockets of a wall outlet or power strip, thus providing a stable power supply for various electronic devices such as mobile phones and laptops. However, as the outlet is used over time, its internal springs may experience elastic fatigue, wear, or oxidation, resulting in a significant decrease in the clamping force of the socket on the prongs.

[0003] When a power adapter plug is inserted into an old type of socket, the insufficient holding force of the plug makes the electrical connection between the plug and the socket extremely prone to loosening or even detachment due to slight contact, pulling, or the weight of the device. This not only causes power outages and affects normal user operation but may also generate electrical sparks due to poor contact, posing a potential electrical safety hazard. Therefore, there is an urgent need for a power adapter that can effectively enhance the holding force between the plug and the old socket and prevent accidental detachment, thereby improving the stability and safety of power use. Summary of the Invention

[0004] This invention provides a power adapter that can effectively enhance the holding force between the plug and the old socket and prevent accidental disconnection, thereby improving the stability and safety of the power usage process.

[0005] This invention discloses a power adapter, including a main body, a base, and two prongs; the two prongs have a rotatable mounting end and a plug-in end at their respective ends; the rotatable mounting end is rotatably mounted on the base so that when the two prongs rotate, the plug-in ends of the two prongs move closer to or further away from each other; the plug-in end extends out of the base and is used to plug into a socket hole; the base is mounted on one end of the main body, and the main body has a driving structure for driving the prongs to rotate so that the plug-in ends of the two prongs move closer to or further away from each other.

[0006] Optionally, the pins have a vertical state and a locked state; in the vertical state, the pins are perpendicular to the base; in the vertical state, the drive structure drives the pins to rotate, and the plug terminals of the two pins move closer or further apart, and the pins are in the locked state.

[0007] Optionally, the main body is rotatably connected to the base around the axis of the power adapter; a driving component is installed on one end of the main body connected to the base, and the driving structure is an arc-shaped driving groove provided on the rotating mounting end of the driving component corresponding to the two pins, which drives the pins to rotate; the two ends of the arc-shaped driving groove are the near end and the far end, respectively; the near end is closer to the rotation center of the driving component than the far end; a pin is provided on the rotating mounting end, and the pin is inserted into the arc-shaped driving groove;

[0008] When the plug is at the near end, the pins are in a vertical position; when the plug is at the far end, the two plug terminals are close to each other and the pins are clamped. Alternatively, when the plug is at the far end, the pins are in a vertical position; when the plug is at the near end, the two plug terminals are far from each other and the pins are clamped.

[0009] Optionally, the power adapter includes a rotating clamp that is connected to the base via a fastener on the side of the drive member facing away from the base, so that the body can be rotatably connected to the base about the axis of the power adapter.

[0010] Optionally, a connecting column is provided on the base, and an arc-shaped clearance groove is provided on the drive component. The connecting column passes through the arc-shaped clearance groove, and the rotating clamping component is installed on the connecting column by a fixing component.

[0011] Optionally, the base is provided with a first rim, which encloses a rotating mounting groove, and two rotating mounting ends are installed in the rotating mounting groove; the two ends of the rotating mounting ends are provided with rotating shafts, and the first rim is provided with rotating shaft grooves corresponding to the rotating shafts, and the rotating shafts are installed in the rotating shaft grooves; the bottom surface of the rotating mounting ends is suspended relative to the rotating mounting groove.

[0012] Optionally, the power adapter includes a clamping plate that is mounted in the base and presses against a rotating mounting slot.

[0013] Optionally, the clamping plate is circular, and a nesting groove is provided on the side of the driving member facing the clamping plate, the nesting groove being nested on the clamping plate.

[0014] Optionally, two first positioning protrusions are spaced apart in the nested groove, and two second positioning protrusions are spaced apart on the surface of the clamping plate facing the nested groove; the pin has a vertical state and a locked state; in the vertical state, one of the first positioning protrusions abuts against one of the second positioning protrusions; in the locked state, the other first positioning protrusion abuts against the other second positioning protrusion.

[0015] Optionally, a shaft is provided on the base, a clamping plate is passed through the shaft, the shaft of the drive component is passed through the shaft, and a first groove is provided on the side of the rotating clamping component facing the clamping plate. The first groove is embedded in the top of the shaft.

[0016] The beneficial effects of the power adapter provided in this embodiment of the invention are as follows: This invention rotatably mounts the two plug ends of the power adapter on the base, and drives the plug to rotate by the drive structure inside the main body, so that the plug ends of the two plugs can move closer or further apart; when the plug is inserted into an old socket, the drive structure drives the plug ends of the two plugs to rotate outward to open or inward to tighten, so that the plug and the spring inside the socket are pressed together, thereby increasing the contact pressure, and thus significantly enhancing the holding force and friction between the plug and the socket, effectively preventing the problem of loosening and falling off due to insufficient clamping force of the socket, while ensuring the stability and safety of the electrical connection. Attached Figure Description

[0017] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. In the accompanying drawings: Figure 1 This is a schematic diagram of the pins in the vertical state according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the plug-in terminals being close to each other and in a clamped state according to an embodiment of the present invention; Figure 3 This is an exploded view of the power adapter according to an embodiment of the present invention; Figure 4 This is a cross-sectional view of the power adapter according to an embodiment of the present invention; Figure 5 This is another cross-sectional view of the power adapter according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the rotating clamping component according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the driving component according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the clamping plate according to an embodiment of the present invention; Figure 9 This is an assembly diagram of the base and pins according to an embodiment of the present invention; Figure 10 This is an exploded view of the base and pins according to an embodiment of the present invention; Figure 11 This is a schematic diagram of nested slots according to an embodiment of the present invention.

[0018] The labels for the attached figures are as follows: 1. Main body; 11. Driving component; 111. Driving structure; 1111. Arc-shaped driving groove; 11111. Proximal end; 11112. Distal end; 112. Arc-shaped clearance groove; 113. Nesting groove; 1131. First positioning protrusion; 114. Nesting groove; 12. Main housing; 13. Circuit board; 2. Base; 21. Connecting post; 22. First rim; 221. Rotating shaft groove; 23. Rotating mounting groove; 24. Shaft post; 25. Circular groove; 3. Pin; 31. Rotating mounting end; 311. Rotating shaft; 32. Power insertion end; 33. Pin; 4. Rotating clamping component; 41. First groove; 5. Pressing plate; 51. Second positioning protrusion. Detailed Implementation

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0020] This invention provides a power adapter, such as... Figures 1 to 11 As shown, the power adapter includes a main body 1, a base 2, and two prongs 3; the two ends of the two prongs 3 are a rotating mounting end 31 and a plug-in end 32, respectively; the rotating mounting end 31 is rotatably mounted on the base 2 so that when the two prongs 3 rotate, the plug-in ends 32 of the two prongs 3 move closer or further away from each other; the plug-in end 32 extends out of the base 2 and is used to plug into the socket hole.

[0021] The base 2 is installed at one end of the main body 1. The main body 1 has a drive structure 111, which is used to drive the pins 3 to rotate so that the plug terminals 32 of the two pins 3 move closer or further apart.

[0022] This invention rotatably mounts the rotating mounting ends 31 of the two prongs 3 of the power adapter onto the base 2, and drives the prongs 3 to rotate by the drive structure 111 inside the main body 1, so that the plug-in ends 32 of the two prongs 3 can move closer or further apart. When the prongs 3 are inserted into an old socket, the drive structure 111 drives the plug-in ends 32 of the two prongs 3 to rotate outward to open or inward to tighten, so that the prongs 3 and the spring inside the socket are pressed together, thereby increasing the contact pressure and significantly enhancing the holding force and friction between the prongs 3 and the socket. This effectively prevents the problem of loosening and falling off due to insufficient clamping force of the socket, while ensuring the stability and safety of the electrical connection.

[0023] Specifically, the plug 3 has a vertical state and a locked state. In the vertical state, the plug 3 is perpendicular to the base 2. The drive structure 111 drives the plug 3 to rotate in the vertical state, and the two plug terminals 32 move closer or further apart, with the plug 3 in the locked state. In the vertical state, the plug 3 is perpendicular to the base 2, and the two plug terminals 32 maintain a standard distance to facilitate smooth insertion into the socket hole. After insertion, the drive structure 111 drives the plug 3 to rotate from the vertical state to the locked state, so that the two plug terminals 32 move closer or further apart to increase the contact pressure with the socket spring, thereby effectively compensating for the insufficient holding force caused by the elastic fatigue of the spring in old sockets, ensuring that the plug 3 obtains a stable mechanical fixation and reliable electrical connection in the socket, and avoiding loosening and falling off due to slight external force or the weight of the equipment.

[0024] Specifically, the vertical position serves as the starting reference position for the plug 3, with the plug 3 forming a 90-degree angle with the surface of the base 2. The distance between the two plug terminals 32 can match the standard hole spacing of the national standard socket, allowing the plug 3 to be inserted into any standard socket without obstruction, just like a regular charger. After the plug 3 is fully inserted, the user can operate the drive structure 111 to make the plug 3 deflect slightly around the rotating mounting end 31. The two plug terminals 32 can either move closer together to clamp, or move away from each other to spread apart.

[0025] Specifically, the main body 1 is rotatably connected to the base 2 around the power adapter axis L; a driving component 11 is installed on one end of the main body 1 connected to the base 2, and the driving structure 111 is an arc-shaped driving groove 1111 provided on the rotating mounting end 31 of the driving component 11 corresponding to the two pins 3, which drives the pins 3 to rotate; the two ends of the arc-shaped driving groove 1111 are the proximal end 11111 and the distal end 11112, respectively; the proximal end 11111 is closer to the rotation center of the driving component 11 than the distal end 11112; a post 33 is provided on the rotating mounting end 31, and the post 33 is inserted into the arc-shaped driving groove 1111.

[0026] When the plug 33 is located at the proximal end 11111, the plug pin 3 is in a vertical state; when the plug 33 is located at the distal end 11112, the plug terminals 32 of the two plug pins 3 are close to each other, and the plug pin 3 is in a clamped state; or when the plug 33 is located at the distal end 11112, the plug pin 3 is in a vertical state; when the plug 33 is located at the proximal end 11111, the plug terminals 32 of the two plug pins 3 are far apart, and the plug pin 3 is in a clamped state.

[0027] By designing the main body 1 to be rotatably connected to the base 2 around the axis L of the power adapter, and setting a drive member 11 with an arc-shaped drive groove 1111 at the connection end between the main body 1 and the base 2, the rotation drive of the pin 3 is achieved by the sliding engagement of the pin 33 and the arc-shaped drive groove 1111. When the main body 1 rotates relative to the base 2, the driving component 11 rotates synchronously. The plug 33 slides from the near end 11111 to the far end 11112 or in the opposite direction in the arc-shaped driving groove 1111. Since the near end 11111 is closer to the rotation center of the driving component 11 than the far end 11112, the radial position of the plug 33 in the groove changes, thereby causing the plug 3 to deflect around its rotating mounting end 31, so that the two plug ends 32 move closer or further apart to clamp or open the socket spring. This effectively solves the problem of insufficient holding force in old sockets. This solution converts the rotational motion into the swinging motion of the plug 3. The transmission is smooth and effortless. Users only need to rotate the main body 1 to complete the clamping or releasing operation of the plug 3. The operation is convenient. At the same time, the curved trajectory of the arc-shaped driving groove 1111 can guide and limit the movement of the plug 33, ensuring the accuracy and stability of the plug 3 in switching between the vertical state and the clamping state.

[0028] The drive component 11 can be designed as a disc-shaped or sleeve-shaped structure, with two symmetrically arranged arc-shaped drive grooves 1111 on its surface. The curvature center and rotation center of the two arc-shaped drive grooves 1111 are eccentrically set, so that the proximal end 11111 and the distal end 11112 have different radial distances relative to the rotation center. This radial difference is the effective drive stroke of the insert 33.

[0029] When the pin 3 switches from the vertical state to the clamped state, whether the plug terminals 32 move away from or towards each other depends on whether the plug post 33 is located at the proximal end 11111 or the distal end 11112 when the pin 3 is in the vertical state. When the plug post 33 is located at the proximal end 11111 in the vertical state, the plug post 33 moves to the distal end 11112, and the plug post 33 rotates outward under the force of the arc-shaped drive groove 1111, while the two plug terminals 32 move closer to each other, forming an "inward" shape, as shown. Figure 2 As shown; when the vertical plug 33 is located at the far end 11112, the plug 33 moves to the near end 11111. The plug 33 rotates inward under the force of the arc-shaped drive groove 1111, while the two plug terminals 32 move away from each other, forming an "outward" shape (not shown).

[0030] Furthermore, the power adapter includes a rotating clamp 4, which is connected to the base 2 via a fixing member on the side of the drive member 11 facing away from the base 2, allowing the main body 1 to be rotatably connected to the base 2 around the power adapter axis L. By adding the rotating clamp 4 and arranging it on the side of the drive member 11 facing away from the base 2, and simultaneously fixing the rotating clamp 4 to the base 2 using a fixing member, a reliable connection is achieved whereby the main body 1 can rotate relative to the base 2 around the axis L. The rotating clamp 4 axially limits the main body 1 from the back side of the drive member 11, preventing the main body 1 from axially disengaging from the base 2 during rotation, while providing a stable rotational support surface for the main body 1, allowing it to smoothly rotate around the power adapter axis L to drive the pins 3 to switch states. The rotating clamp 4 can be a circular pressure plate, and the fixing member can be a screw.

[0031] Specifically, such as Figure 5 As shown, the drive member 11 abuts against the base 2. Because it is clamped between the rotating clamp 4 and the base 2, the drive member 11 is as follows: Figure 11 The circular convex edge 114 is embedded in the base as follows Figure 10 The circular groove 25 can maintain rotation relative to the base 2.

[0032] Specifically, a connecting post 21 is provided on the base 2, and an arc-shaped clearance groove 112 is provided on the driving component 11. The connecting post 21 passes through the arc-shaped clearance groove 112, and the rotating clamping component 4 is installed on the connecting post 21 by a fixing component. By providing a connecting post 21 on the base 2 and providing an arc-shaped clearance groove 112 on the driving component 11, the connecting post 21 passes through the arc-shaped clearance groove 112 and is connected to the rotating clamping component 4 by a fixing component, thus achieving the coordination between the positioning and installation of the rotating clamping component 4 and the rotational movement of the main body 1. The connecting post 21 extends upward from the base 2, providing reliable fixed support as the mounting base for the rotating clamping component 4, and also guiding and limiting the rotational movement of the driving component 11 by passing through the arc-shaped clearance groove 112. The arc-shaped trajectory of the arc-shaped clearance groove 112 is adapted to the rotational trajectory of the main body 1, so that the connecting post 21 does not obstruct the normal rotation of the main body 1 when sliding in the groove. The rotating clamping component 4 is fastened to the top of the connecting column 21 by a fixing component, forming a stable stacked structure in which the base 2, the driving component 11, and the rotating clamping component 4 are stacked sequentially from the base 2 upwards. This structure is compact and easy to assemble, effectively solving the problem of spatial layout and motion interference of each component in the rotating drive mechanism, and ensuring the reliable realization of the function of rotating the main body 1 rotating drive pin 3.

[0033] like Figure 3 As shown, the main body 1 includes a main housing 12 and a circuit board 13 disposed inside the main housing 12. The drive unit 11 is installed on one end of the main housing 12 by a snap-fit ​​or screw, and the pin 3 is electrically connected to the circuit board 13 to realize power conversion and power supply.

[0034] Furthermore, the base 2 is provided with a first surrounding edge 22, which encloses a rotating mounting groove 23. Two rotating mounting ends 31 are installed in the rotating mounting groove 23. Rotating shafts 311 protrude from both ends of the rotating mounting ends 31. Rotating shaft grooves 221 are formed on the first surrounding edge 22 corresponding to the rotating shafts 311, and the rotating shafts 311 are installed in the rotating shaft grooves 221. The bottom surface of the rotating mounting ends 31 is suspended relative to the rotating mounting groove 23. By providing a first surrounding edge 22 on the base 2 to enclose the rotating mounting groove 23, installing the two rotating mounting ends 31 in the rotating mounting groove 23, and having rotating shafts 311 protruding from both ends of the rotating mounting ends 31 to engage with the rotating shaft grooves 221 on the first surrounding edge 22, while simultaneously suspending the bottom surface of the rotating mounting ends 31 relative to the rotating mounting groove 23, precise positioning and low-friction rotational support of the rotating mounting ends 31 of the pin 3 are achieved. The first surrounding edge 22 protrudes upward from the surface of the base 2 to form an enclosing structure, providing lateral restraint and protection for the rotating mounting end 31, preventing the pin 3 from shifting laterally or coming off during rotation. The cooperation between the rotating shaft 311 and the rotating shaft groove 221 provides a stable rotation axis 311 for the pin 3, ensuring accurate and controllable swing trajectory of the plug-in end 32. The suspended design of the bottom surface of the rotating mounting end 31 avoids surface contact friction between the bottom surface and the bottom surface of the rotating mounting groove 23, significantly reducing the resistance to the rotation of the pin 3. This allows the drive structure 111 to achieve smooth deflection of the pin 3 with a small driving force, ensuring the flexibility and consistency of the pin 3 in switching between the vertical and locked states. The first surrounding edge 22 can be designed as a rectangular frame structure, with a small gap between the inner wall of the first surrounding edge 22 and the side of the rotating mounting end 31 to allow free rotation while preventing excessive shaking.

[0035] The power adapter also includes a clamping plate 5, which is installed in the base 2 and pressed against the rotating mounting groove 23. By adding the clamping plate 5 to the base 2 and pressing it against the rotating mounting groove 23, the axis of the rotating mounting end 31 and the rotating shaft 311 is clamped and auxiliaryly fixed. The clamping plate 5 covers the rotating mounting groove 23 and forms a downward clamping force on the upper surface of the rotating mounting end 31, which firmly restricts the rotating shaft 311 in the rotating shaft groove 221. This prevents the rotating shaft 311 from coming out of the rotating shaft groove 221 or from axial movement due to vibration, impact, or the reaction force when the pin 3 deflects. This effectively solves the problems of pin 3 positioning reliability and position holding stability, ensuring that the pin 3 can maintain a precise position and posture in both vertical and clamped states, thus providing a guarantee for accurate transmission between the drive structure 111 and the pin 3. Specifically, the clamping plate 5 is installed in the base 2 by screws.

[0036] The clamping plate 5 is circular, and a nesting groove 113 is provided on the side of the driving component 11 facing the clamping plate 5. The nesting groove 113 is nested on the clamping plate 5. By designing the clamping plate 5 as circular and providing the nesting groove 113 on the side of the driving component 11 facing the clamping plate 5, the coaxial positioning and rotational guidance between the clamping plate 5 and the driving component 11 are achieved. The circular clamping plate 5 provides a cylindrical surface mating reference for the driving component 11, and the inner circumferential surface of the nesting groove 113 forms a rotating pair or positioning fit with the outer circumferential surface of the clamping plate 5. At the same time, the nesting and wrapping of the clamping plate 5 by the nesting groove 113 also enhances the structural integrity between the driving component 11 and the clamping plate 5, making the driving structure 111 more compact. This effectively solves the problems of center positioning accuracy and rotational stability of the rotating driving component 11, and ensures the reliability and consistency of the transmission of the rotational motion of the main body 1 to the deflection motion of the pin 3.

[0037] Two first positioning protrusions 1131 are spaced apart in the nesting groove 113, and two second positioning protrusions 51 are spaced apart on the surface of the clamping plate 5 facing the nesting groove 113. The pin 3 has a vertical state and a locked state. In the vertical state, one of the first positioning protrusions 1131 abuts against one of the second positioning protrusions 51. In the locked state, the other first positioning protrusion 1131 abuts against the other second positioning protrusion 51. By spaced apart in the nesting groove 113 by two first positioning protrusions 1131 and spaced apart on the surface of the clamping plate 5 facing the nesting groove 113, the precise positioning of the pin 3 in the vertical and locked states is achieved by the abutting cooperation of the two sets of positioning protrusions. When the pin 3 is in a vertical position, one of the first positioning protrusions 1131 and one of the second positioning protrusions 51 abut against each other to form a first mechanical limit, preventing the drive member 11 from continuing to rotate in that direction, thereby precisely locking the pin 3 in the vertical reference position. When the drive member 11 rotates to the point where the pin 3 is in a locked position, another first positioning protrusion 1131 and another second positioning protrusion 51 abut against each other to form a second mechanical limit, precisely locking the pin 3 in the locked working position. The spacing of the two sets of positioning protrusions corresponds to the proximal end 11111 and the distal end 11112 of the arc-shaped drive groove 1111, so that both working states of the pin 3 have clear mechanical stops and position holding forces. When the user rotates the main body 1, they can feel a clear sense of stopping in place, effectively solving the problems of position holding reliability and operational perception clarity after the state of the pin 3 is switched.

[0038] The first positioning protrusion 1131 can be integrally formed with the bottom of the nesting groove 113. Its shape can be designed as a trapezoidal platform or a rectangular block. The protrusion height ensures reliable abutment contact with the second positioning protrusion 51, and can be controlled between 0.5 mm and 3 mm. The second positioning protrusion 51 can be set on the entire annular surface of the clamping plate 5 facing the nesting groove 113. Its shape is adapted to the first positioning protrusion 1131 to achieve surface contact or line contact abutment. The circumferential spacing angle between the two sets of positioning protrusions is determined according to the difference in rotation angle of the main body 1 between the vertical state and the clamping state. For example, when the main body 1 needs to rotate 45 degrees to switch states, the two sets of protrusions are arranged at a 45-degree interval. Specifically, such as Figure 11 As shown, the nested groove 113 is formed by a circular protrusion 114.

[0039] A shaft post 24 is provided on the base 2, a clamping plate 5 passes through the shaft post 24, and the shaft of the driving member 11 passes through the shaft post 24. A first groove 41 is formed on the side of the rotating clamping member 4 facing the clamping plate 5, and the first groove 41 is fitted into the top of the shaft post 24. The shaft post 24 is provided on the base 2, allowing the clamping plate 5 to pass through the shaft post 24. At the same time, the shaft of the driving member 11 passes through the shaft post 24, and the first groove 41 is formed on the side of the rotating clamping member 4 facing the clamping plate 5, so that the first groove 41 is fitted into the top of the shaft post 24. This achieves coaxial stacking and axial connection and fixation between the base 2, the clamping plate 5, the driving member 11, and the rotating clamping member 4. The shaft column 24 serves as the central positioning shaft that runs through all components, providing a precise radial positioning reference for the clamping plate 5 and the driving component 11. This ensures that both rotate around the same axis and maintain constant coaxiality. The clamping plate 5, which passes through the shaft column 24, prevents radial displacement or circumferential rotation on the base 2, maintaining a stable clamping posture on the rotating mounting groove 23. The shaft center of the driving component 11, which passes through the shaft column 24, further enhances the central positioning accuracy of the rotational movement of the driving component 11, making the transmission cooperation between the arc-shaped driving groove 1111 and the insert 33 more accurate and reliable. The rotating clamping component 4 is embedded in the top of the shaft column 24 through the first groove 41, which not only achieves precise alignment and installation between the rotating clamping component 4 and the shaft column 24, but also uses the support at the top of the shaft column 24 to maintain a stable axial limit height for the rotating clamping component 4, thereby pressing and integrating the components along the axis into one.

[0040] The shaft column 24 can be integrally injection molded with the base 2. Its height must meet the total stacked thickness of the clamping plate 5, the driving component 11 and the rotating clamping component 4 and reserve operating space for the fixing component. The diameter of the shaft column 24 is determined according to the diameter of the central hole of each component to form a clearance fit or transition fit. The central hole of the clamping plate 5 can be a round hole, a square hole or an irregular hole. After it is fitted with the shaft column 24, it restricts its five degrees of freedom and retains only the axial movement degree of freedom. It is then completely fixed by the clamping of the rotating clamping component 4. A central hole or a central sleeve is opened at the axis of the driving component 11. Its inner diameter is precisely matched with the outer diameter of the shaft column 24. The first groove 41 is opened on the side surface of the rotating clamping component 4 facing the clamping plate 5. It can be a blind hole, a through hole or a countersunk hole structure. Its diameter matches the diameter of the top of the shaft column 24. The insertion depth must ensure that the lower surface of the rotating clamping component 4 can press the upper surface of the driving component 11 or the clamping plate 5.

[0041] Taking the insertion into an old socket as an example, the operation process of the power adapter of this invention is as follows: First, the user adjusts the two prongs 3 of the power adapter to a vertical position, at which time the plug ends 32 of the two prongs 3 maintain a standard distance. Then, the plug ends 32 are aligned and smoothly inserted into the socket of the old socket. After the prongs 3 are fully inserted, the user holds the main body 1 and rotates it relative to the base 2 around the axis of the power adapter. The main body 1 drives the driving component 11 to rotate synchronously, and the arc-shaped driving groove 1111 on the driving component 11 rotates accordingly, causing the pin 33 on the rotating mounting end 31 of the prongs 3 to slide from the near end 11111 to the far end 11112 or in the opposite direction. The radial position of the pin 33 changes within the arc-shaped driving groove 1111. The plug pin 3 is deflected around the pivot 311, and the two plug ends 32 move closer or further apart to clamp or open the internal spring of the socket. The plug pin 3 switches from the vertical state to the locked state. At this time, the first positioning protrusion 1131 in the nested groove 113 and the second positioning protrusion 51 on the pressing plate 5 resist each other to form a mechanical limit. The user can feel a clear sense of stopping and confirming that the plug pin 3 has been firmly locked in the locked position. When it is necessary to unplug the power adapter, the user rotates the main body 1 in the opposite direction, and the drive component 11 rotates back. The plug post 33 slides from the far end 11112 back to the near end 11111, and the plug pin 3 returns from the locked state to the vertical state. The two plug ends 32 return to the standard distance, and the user can easily pull the plug pin 3 out of the socket.

[0042] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of the present invention.

Claims

1. A power adapter, characterized in that, The device includes a main body, a base, and two prongs; the two prongs have a rotatable mounting end and a plug-in end, respectively; the rotatable mounting end is rotatably mounted on the base so that when the two prongs rotate, the plug-in ends of the two prongs move closer to or further away from each other; the plug-in end extends out of the base and is used to be plugged into a socket hole. The base is mounted on one end of the main body, which has a driving structure for driving the pins to rotate so that the plug terminals of the two pins move closer to or further away from each other.

2. The power adapter according to claim 1, characterized in that, The pins have a vertical state and a locked state; in the vertical state, the pins are perpendicular to the base; in the vertical state, the drive structure drives the pins to rotate, and the plug terminals of the two pins move closer or further apart, and the pins are in the locked state.

3. The power adapter according to claim 2, characterized in that, The main body is rotatably connected to the base around the axis of the power adapter; a driving component is installed on one end of the main body connected to the base, and the driving structure is an arc-shaped driving groove provided on the driving component corresponding to the rotating mounting ends of the two pins, which drives the pins to rotate; the two ends of the arc-shaped driving groove are a proximal end and a distal end, respectively; the proximal end is closer to the rotation center of the driving component relative to the distal end; The rotating mounting end is provided with a plug, which is inserted into the arc-shaped drive groove; When the plug is located at the proximal end, the pin is in a vertical state; when the plug is located at the distal end, the electrical terminals of the two pins are close to each other, and the pins are in a clamped state; or when the plug is located at the distal end, the pin is in a vertical state; when the plug is located at the proximal end, the electrical terminals of the two pins are far apart, and the pins are in a clamped state.

4. The power adapter according to claim 3, characterized in that, The power adapter includes a rotating clamp that is connected to the base via a fixing member on the side of the drive member facing away from the base, so that the main body can be rotatably connected to the base about the axis of the power adapter.

5. The power adapter according to claim 4, characterized in that, The base is provided with a connecting column, and the driving component is provided with an arc-shaped clearance groove. The connecting column passes through the arc-shaped clearance groove, and the rotating clamping component is installed on the connecting column through the fixing component.

6. The power adapter according to claim 4, characterized in that, The base is provided with a first rim, which encloses a rotating mounting groove. Two rotating mounting ends are installed in the rotating mounting groove. Rotating shafts protrude from both ends of each rotating mounting end. Rotating shaft grooves are opened on the first rim corresponding to the rotating shafts, and the rotating shafts are installed in the rotating shaft grooves. The bottom surface of each rotating mounting end is suspended relative to the rotating mounting groove.

7. The power adapter according to claim 6, characterized in that, The power adapter includes a clamping plate, which is mounted in the base and presses against the rotating mounting slot.

8. The power adapter according to claim 7, characterized in that, The clamping plate is circular, and the driving member has a nesting groove on the side facing the clamping plate, which is nested on the clamping plate.

9. The power adapter according to claim 8, characterized in that, The nested groove is provided with two first positioning protrusions spaced apart, and the surface of the clamping piece facing the nested groove is provided with two second positioning protrusions spaced apart; the pin has a vertical state and a locked state; in the vertical state, one of the first positioning protrusions and one of the second positioning protrusions abut against each other; In the locked state, the other first positioning protrusion and the other second positioning protrusion abut against each other.

10. The power adapter according to claim 7, characterized in that, The base is provided with a shaft post, the clamping plate passes through the shaft post, the shaft of the driving member passes through the shaft post, and the rotating clamping member has a first groove on the side facing the clamping plate, the first groove being fitted into the top of the shaft post.

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