A rotatable switching pin standard power plug

Abstract

This invention relates to the field of power plug technology and proposes a power plug with rotatable and switchable plug standards. The power plug includes a power housing, adjustment brackets, electrical connection structures, detachable connection pins, a flexible connection structure, and a rotary adjustment structure. Three adjustment brackets are provided inside the power housing. Position adjustment components are provided on both the upper and lower sides of each adjustment bracket. Electrical connection structures are slidably disposed within each of the position adjustment components on both sides. The upper electrical connection structure is connected to the plug pins, and the connection pins are detachably disposed on the lower electrical connection structure. A flexible connection structure is provided between the two electrical connection structures, allowing the two electrical connection structures on the upper and lower sides to be adjusted to different positions. A rotary adjustment structure is provided inside the power housing. This technical solution addresses the problem in the prior art where it is difficult to directly obtain power from the outside using a power plug.

Description

Technical Field

[0001] This invention relates to the field of advanced non-ferrous metal materials, and more specifically to the field of power plugs, and more particularly to a power plug with rotatable and switchable pin standards. Background Technology

[0002] A power plug is a device that connects electrical appliances to a power source. The power plug is inserted into a pre-installed power socket to supply power to the electrical appliance. There are generally two types of power plugs. One type uses a cable to connect the power plug to the power socket, thus connecting the electrical appliance to the power source and maintaining the electrical connection between the appliance and the power source.

[0003] Another type of power plug is used as an adapter plug, installed between the power socket and the power plug that is electrically connected to the electrical appliance. Because the shape, size and type of power sockets vary from region to region, and the socket holes also come in rectangular and rod shapes, corresponding to different prong shapes, especially when users go to unfamiliar countries and regions to charge and power their electrical appliances, it is often difficult for users to directly use the power plug to obtain power because the prong standard of the power plug they bring does not match the actual socket hole distribution in different regions, causing inconvenience when users recharging their electrical appliances. Summary of the Invention

[0004] This invention proposes a power plug with rotatable and switchable pin standards to solve the problem in the prior art that it is difficult to directly obtain power from the outside using a power plug.

[0005] The technical solution of the present invention is as follows: A power plug with rotatable and switchable plug standards, including a power housing, and further comprising:

[0006] Adjustment brackets: Three adjustment brackets are provided inside the power supply housing, and position adjustment components are provided on the upper and lower sides of each adjustment bracket.

[0007] The electrical connection structure is slidably disposed in the position adjustment components located on both the upper and lower sides, and the electrical connection structure located on the upper side is connected to the pins of the power plug.

[0008] Detachable connector pins, which are detachably mounted on the electrical connection structure located on the lower side;

[0009] An elastic connection structure is provided between the two electrical connection structures, so that the two electrical connection structures located on the upper and lower sides can be adjusted to different positions.

[0010] A rotary adjustment structure is provided inside the power supply housing to synchronously adjust the positions of multiple electrical connection structures located on the upper and lower sides.

[0011] To further adjust the position of the two electrical connection structures, the position adjustment assembly includes a rectangular frame and a rectangular mounting slot. The rectangular frame is fixedly connected to the top or bottom of the adjustment bracket. Both sides of the rectangular frame are provided with transverse sliding grooves. The rectangular mounting slot is slidably connected in the transverse sliding grooves through sliding protrusions. A circular mounting component is fixedly connected in the rectangular mounting slot.

[0012] To electrically connect the plug pins or connector pins of the power plug, the electrical connection structure further includes a connecting cylinder and a metal rotating cylinder seat. The connecting cylinder and the circular mounting component are equipped with a rotation adjustment component. The connecting cylinder is made of insulating material. The metal rotating cylinder seat is fixedly connected to the connecting cylinder. The top of the metal rotating cylinder seat is provided with two arc-shaped connecting cylinder seats. The inner arc surface of the arc-shaped connecting cylinder seat has slots on both sides, and the bottom of the inner arc surface has a tension groove, so that after the inner arc surface contacts the plug pin, it shifts towards the outer arc surface. The inner arc surface has a semi-arc groove, and the two ends of the semi-arc groove are set as vertical end faces.

[0013] In order to connect the connecting pin to the electrical connection structure at the bottom, a threaded sleeve seat is fixedly connected to the bottom end of the connecting cylinder located on the lower side, and a threaded collar is rotatably sleeved on the middle part of the connecting pin. The threaded collar is threadedly connected to the threaded sleeve seat, and the top of the connecting pin extends between the two arc-shaped connecting sleeve seats.

[0014] To adjust the connection angle inside the connecting cylinder, the rotation adjustment component further includes a helical protrusion and a threaded seat. The circular mounting part is provided with multiple longitudinally arranged helical protrusions. The threaded seats are fixedly connected to both sides of the connecting cylinder, and the threaded seats are threadedly connected to the multiple helical protrusions.

[0015] To adjust the positions of the two electrical connection structures separately, the elastic connection structure further includes a mounting sleeve and a metal cylinder. The mounting sleeve is rotatably connected to the adjacent ends of the two connecting cylinders. A curved cylinder section is provided between the two mounting sleeves. The mounting sleeve is made of insulating material. The metal cylinder is rotatably connected to the adjacent ends of the two metal rotating cylinder seats. A spiral metal wire is provided between the two metal cylinders.

[0016] To facilitate the movement of the mounting sleeve and connecting cylinder, a bucket-shaped pusher is further fixedly fitted onto the mounting sleeve.

[0017] To adjust the positions of the electrical connection structures on the upper and lower sides respectively, the rotary adjustment structure further includes a rotating ring, a lifting groove, a lifting ring, and wedge-shaped push rods. The rotating ring is fixedly connected to both the upper and lower sides of the middle part of the power supply housing. A lifting screw is rotatably connected to the rotating ring. The lifting groove is fixedly connected inside the power supply housing. The lifting ring is threadedly connected to the lifting screw. The lifting ring is slidably connected to the lifting groove through a sliding member. Three wedge-shaped push rods are fixedly connected to the circumference of the lifting ring. The wedge-shaped push rods correspond one-to-one with the bucket-shaped push member, and the wedge-shaped push rods contact the outer wall of the bucket-shaped push member.

[0018] To further control the positional distance of the electrical connection structure, multiple calibration points are provided on the circumference of the rotating ring, a rotating handle is fixedly connected to the lifting screw, and a rotating protrusion is fixedly connected to the circumference of the rotating handle, the rotating protrusion corresponding to the calibration points.

[0019] To improve versatility with power outlets, the connecting pins are further designed to be rectangular or rod-shaped.

[0020] The working principle and beneficial effects of this invention are as follows:

[0021] 1. In this invention, when an electrical connection is required between the connecting pins and the power socket, the positions of multiple mounting sleeves and multiple connecting cylinders located on the lower side can be synchronously adjusted by rotating the adjustment structure, so that the unfolded position of the multiple connecting cylinders corresponds to the position of the actual socket on the power socket. The connecting cylinders can be rotated so that the tilt angle of the two arc-shaped connecting cylinder seats inside is consistent with the tilt angle of the socket. Then, according to the socket, the rod-shaped or rectangular connecting pins are fixed between the two arc-shaped connecting cylinder seats located on the lower side. Then, the connecting pins are inserted into the socket of the power socket to realize the electrical connection with the external power source, improving the convenience for users to connect electrical appliances with the external power source.

[0022] 2. In this invention, when it is necessary to electrically connect the power plug connected to the electrical appliance to the multiple connecting cylinders located on the upper side, the position of the multiple connecting cylinders located on the upper side is also adjusted using a rotating adjustment structure. Under the action of the elastic connection structure, the interiors of the two longitudinally corresponding connecting cylinder seats maintain an electrical connection. The angle of the connecting cylinder seats is rotated so that the tilt angle of the two arc-shaped connecting cylinder seats inside the connecting cylinder corresponds to the pin angle of the power plug on the electrical appliance, so that the power plug on the electrical appliance is connected to the interiors of the multiple connecting cylinders located on the upper side, and the electrical appliance maintains an electrical connection with the external power source. Attached Figure Description

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] Figure 1 This is a 3D structural schematic diagram of a power plug with rotatable and switchable pin standards according to the present invention.

[0025] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0027] Figure 4 This is a partial cross-sectional structural schematic diagram of the present invention;

[0028] Figure 5 This is a partial cross-sectional schematic diagram of the structure of the adjusting bracket, connecting pin, position adjusting component, electrical connection structure and bucket-shaped pusher in this invention;

[0029] Figure 6 This is a partially exploded structural diagram showing the combination of the electrical connection structure and the elastic connection structure in this invention.

[0030] Figure 7 This is a schematic diagram of the structure of the metal rotating cylinder seat and the arc-shaped connecting cylinder seat in this invention;

[0031] Figure 8 This is a schematic diagram of the rotation adjustment structure in this invention.

[0032] In the diagram: 100, position adjustment component; 200, electrical connection structure; 300, flexible connection structure; 400, rotary adjustment structure;

[0033] 1. Power supply housing; 2. Adjustment bracket; 3. Connecting pin; 4. Rectangular frame; 5. Rectangular mounting slot; 6. Sliding protrusion; 7. Circular mounting part; 8. Connecting cylinder; 9. Metal rotating cylinder seat; 10. Arc-shaped connecting cylinder seat; 11. Slotted; 12. Tension groove; 13. Semi-arc groove; 14. Vertical end face; 15. Threaded cylinder seat; 16. Threaded collar; 17. Spiral protrusion; 18. Threaded seat; 19. Mounting sleeve; 20. Bending cylinder section; 21. Metal cylinder; 22. Spiral metal wire; 23. Bucket-shaped pusher; 24. Rotating ring sleeve; 25. Lifting screw; 26. Lifting slide; 27. Lifting ring sleeve; 28. Wedge-shaped push rod; 29. ​​Calibration point; 30. Rotating handle; 31. Rotating protrusion. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0035] like Figures 1 to 5 As shown, this embodiment proposes a power plug with rotatable and switchable plug standard, including a power housing 1. The power housing 1 is an adapter power plug produced by injection molding in the prior art, used to realize an adaptive electrical connection between the power plug of electrical appliances and the power socket in the external power source.

[0036] It also includes adjustment brackets 2. Three adjustment brackets 2 are provided inside the power supply housing 1. Position adjustment components 100 are provided on the upper and lower sides of the adjustment brackets 2. The position adjustment components 100 include a rectangular frame 4 and a rectangular mounting slot 5. The rectangular frame 4 is fixedly connected to the top or bottom of the adjustment bracket 2. A transverse sliding groove is opened on both sides of the rectangular frame 4. The rectangular mounting slot 5 is slidably connected in the transverse sliding groove through a sliding protrusion 6. A circular mounting part 7 is fixedly connected in the rectangular mounting slot 5. When the mounting sleeve 19 and the connecting cylinder 8 are moved, the circular mounting part 7, the rectangular mounting slot 5 and the sliding protrusion 6 move laterally in the rectangular frame 4 together. Along the sliding path of the transverse sliding groove, they move from one side to the other in the rectangular frame 4 to adjust the position of the connecting cylinder 8. After use, the user can first move the position of the multiple wedge push rods 28 to a position close to the top or bottom wall of the power supply housing 1. Then the user can manually reset the connecting cylinder 8 and move the connecting cylinder 8 to one side in the rectangular frame 4.

[0037] like Figures 1 to 7As shown, electrical connection structures 200 are slidably installed inside the position adjustment components 100 on both the upper and lower sides. The electrical connection structure 200 on the upper side is connected to the pins of the power plug. The electrical connection structure 200 includes a connecting cylinder 8 and a metal rotating cylinder seat 9. A rotation adjustment component is installed inside the connecting cylinder 8 and the circular mounting part 7. The connecting cylinder 8 is made of insulating material. The metal rotating cylinder seat 9 is fixedly connected inside the connecting cylinder 8. Two arc-shaped connecting cylinder seats 10 are provided on the top of the metal rotating cylinder seat 9. The inner arc surface of the arc-shaped connecting cylinder seat 10 has slots 11 on both sides and a tension groove 12 on the bottom of the inner arc surface, so that after the inner arc surface contacts the pins, it moves towards... The outer arc surface is offset, and a semi-arc groove 13 is provided on the inner arc surface. The two ends of the semi-arc groove 13 are set as vertical end faces 14. After the plug or connecting pin 3 of the power plug is inserted into the connecting cylinder 8, the rod-shaped connecting pin 3 is located between the two semi-arc grooves 13. The inner arc surface of the arc-shaped connecting cylinder 10 is pressed to move towards the outer arc surface. The inner arc surface is tightly fitted with the connecting pin 3 to fix it. After the rectangular connecting pin 3 is inserted into the connecting cylinder 8, the connecting pin 3 contacts the vertical end faces 14 located on both sides. Similarly, the inner arc surface is pressed to move towards the outer arc surface along the tension groove 12 to fix the connecting pin 3.

[0038] The rotary adjustment assembly includes a spiral protrusion 17 and a threaded seat 18. The circular mounting part 7 has multiple longitudinally arranged spiral protrusions 17. The threaded seats 18 are fixedly connected to both sides of the connecting cylinder 8. The threaded seats 18 are threadedly connected to the multiple spiral protrusions 17. Because the pin arrangement angles of different power sockets or power plugs are different, by rotating the connecting cylinder 8, the threaded seats 18 can slide on the multiple spiral protrusions 17. This allows adjustment of the extension distance of the connecting cylinder 8 from the power housing 1 and the angle of the two arc-shaped connections. The multiple spiral protrusions 17 can both keep the threaded seats 18 fixed and increase the distance movement speed of the rotating connecting cylinder 8.

[0039] like Figures 1 to 6 As shown, the connecting pin 3 is detachably mounted on the electrical connection structure 200 located on the lower side. The bottom end of the connecting cylinder 8 located on the lower side is fixedly connected to a threaded cylinder seat 15. A threaded collar 16 is rotatably sleeved on the middle part of the connecting pin 3. The threaded collar 16 is threadedly connected to the threaded cylinder seat 15. The top of the connecting pin 3 is inserted between the two arc-shaped connecting cylinder seats 10. Then, the threaded collar 16 is rotated on the outside of the connecting pin 3, so that the threaded collar 16 moves into the threaded cylinder seat 15, so that the threaded collar 16 and the threaded cylinder seat 15 are threadedly connected, thus fixing the connecting pin 3. The outer wall of the threaded cylinder seat 15 is made of insulating material.

[0040] An elastic connection structure 300 is provided between the two electrical connection structures 200, allowing the two electrical connection structures 200 located on the upper and lower sides to be adjusted to different positions. The elastic connection structure 300 includes a mounting sleeve 19 and a metal cylinder 21. The mounting sleeve 19 is rotatably connected to the adjacent ends of the two connecting cylinders 8. A curved section 20 is provided between the two mounting sleeves 19. The mounting sleeves 19 are made of insulating material. The metal cylinder 21 is rotatably connected to the adjacent ends of the two metal rotating cylinder seats 9. A spiral metal wire 22 is provided between the two metal cylinders 21. When the two connecting cylinders 8 are moved, the curved section 20 can cause the mounting sleeve 19 to shift laterally to adapt to the positional changes of the connecting cylinders 8. The spiral metal wire 22 can cause the two metal cylinders 21 to adapt to the offset distance of the two metal rotating cylinder seats 9. The arc-shaped connecting cylinder seat 10 is made of metal. Through the arc-shaped connecting cylinder seat 10, the metal rotating cylinder seat 9, and the metal cylinder 21, the two pins located on the upper and lower sides of the power supply housing 1 are kept electrically connected.

[0041] like Figures 1 to 5 and Figure 8 As shown, a bucket-shaped pusher 23 is fixedly sleeved on the mounting sleeve 19. The bucket-shaped pusher 23 is made of insulating material and is used to protect the mounting sleeve 19.

[0042] The power supply housing 1 is equipped with a rotary adjustment structure 400 for synchronously adjusting the positions of multiple electrical connection structures 200 located on the upper and lower sides. The rotary adjustment structure 400 includes a rotating ring 24, a lifting slide 26, a lifting ring 27, and a wedge-shaped push rod 28. The rotating ring 24 is fixedly connected to both the upper and lower sides of the middle part of the power supply housing 1. A lifting screw 25 is rotatably connected to the rotating ring 24. The lifting slide 26 is fixedly connected to the power supply housing 1. The lifting ring 27 is threadedly connected to the lifting screw 25. The lifting ring 27 is slidably connected to the lifting slide 26 through a sliding member. Three wedge-shaped push rods 28 are fixedly connected to the circumference of the lifting ring sleeve 27. The wedge-shaped push rods 28 correspond one-to-one with the bucket-shaped pushers 23, and the wedge-shaped push rods 28 contact the outer wall of the bucket-shaped pushers 23. When it is necessary to adjust the position of the connecting cylinder 8, the lifting screw 25 is rotated, which drives the lifting ring sleeve 27 to move longitudinally between the two lifting slides 26, so that the wedge-shaped pushers contact the outer wall of the bucket-shaped pushers 23. As the wedge-shaped pushers follow the lifting ring sleeve 27 to move longitudinally, they push the bucket-shaped pushers 23 and the mounting sleeve 19 to move laterally, thereby moving the connecting cylinder 8 and its internal components laterally.

[0043] Multiple calibration points 29 are provided on the circumference of the rotating ring 24. A rotating handle 30 is fixedly connected to the lifting screw 25. A rotating protrusion 31 is fixedly connected on the circumference of the rotating handle 30. The rotating protrusion 31 corresponds to the calibration point 29. The multiple rotating protrusions 31 can not only improve the rotation effect of the rotating handle 30 on the lifting screw 25, but also make the rotating protrusion 31 follow the rotation of the rotating handle 30 and correspond longitudinally with the calibration point 29 a number of times. The positional movement distance of the lifting screw 25 relative to the lifting ring 27 and the wedge-shaped pusher can be determined. The first step is to determine the positional movement distance of the connecting cylinder 8 and make subsequent adjustments.

[0044] The connecting pin 3 is rectangular or rod-shaped. Rectangular or rod-shaped connecting pin 3 are common shapes of connecting pin 3 in the prior art. Electrical appliances are generally equipped with live wire, neutral wire and ground wire, so power plugs are generally equipped with three pins. However, some small electrical appliances are only equipped with live wire and neutral wire. Therefore, the number of connecting pins 3 can be selected to make the connecting pin 3 electrically connected to the corresponding connecting cylinder 8.

[0045] How does this power plug with rotatable and switchable pins work?

[0046] When it is necessary to make an electrical connection between the connecting pin 3 and the power socket, the positions of the multiple mounting sleeves 19 and multiple connecting cylinders 8 located on the lower side can be adjusted synchronously by rotating the adjustment structure 400 so that the unfolded position of the multiple connecting cylinders 8 corresponds to the position of the actual socket on the power socket. The connecting cylinders 8 can be rotated so that the tilt angle of the two arc-shaped connecting cylinder seats 10 inside is consistent with the tilt angle of the socket. Then, the rod-shaped or rectangular connecting pin 3 is fixed between the two arc-shaped connecting cylinder seats 10 located on the lower side according to the socket. Then, the connecting pin 3 is inserted into the socket of the power socket to realize the electrical connection with the external power source.

[0047] When it is necessary to electrically connect the power plug connected to the electrical appliance to the multiple connecting cylinders 8 located on the upper side, the position of the multiple connecting cylinders 8 located on the upper side is adjusted using the rotating adjustment structure 400. Under the action of the elastic connection structure 300, the two longitudinally corresponding connecting cylinder seats maintain electrical connection. The angle of the connecting cylinder seats is rotated so that the tilt angle of the two arc-shaped connecting cylinder seats 10 inside the connecting cylinder 8 corresponds to the pin angle of the power plug on the electrical appliance, so that the power plug on the electrical appliance is connected to the interior of the multiple connecting cylinders 8 located on the upper side, and the electrical appliance maintains electrical connection with the external power source.

[0048] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rotatable switching pin standard power plug comprising a power housing (1), characterized in that, Also includes: Adjustment bracket (2), three adjustment brackets (2) are provided inside the power supply housing (1), and position adjustment components (100) are provided on the upper and lower sides of the adjustment bracket (2). An electrical connection structure (200) is slidably disposed in the position adjustment components (100) located on both the upper and lower sides. The electrical connection structure (200) located on the upper side is connected to the pins of the power plug. A detachable connector (3) is detachably mounted on the electrical connection structure (200) located on the lower side; An elastic connection structure (300) is provided between two electrical connection structures (200), so that the two electrical connection structures (200) located on the upper and lower sides can be adjusted to different positions; Rotary adjustment structure (400), the power supply housing (1) is provided with the rotary adjustment structure (400) for synchronously adjusting the position between the multiple electrical connection structures (200) located on the upper and lower sides; The position adjustment component (100) includes: A rectangular frame (4) is fixedly connected to the top or bottom of the adjusting bracket (2), and transverse sliding grooves are provided on both sides of the rectangular frame (4). A rectangular mounting slot (5) is slidably connected in the transverse groove by a sliding protrusion (6), and a circular mounting component (7) is fixedly connected in the rectangular mounting slot (5). The electrical connection structure (200) includes: A connecting cylinder (8) is provided inside the connecting cylinder (8) and the circular mounting part (7), and the connecting cylinder (8) is made of insulating material; Metal rotating cylinder seat (9) is fixedly connected inside the connecting cylinder body (8), and two arc-shaped connecting cylinder seats (10) are provided on the top of the metal rotating cylinder seat (9). Among them, the inner arc surface of the arc-shaped connecting cylinder seat (10) is provided with slots (11) on both sides, and the bottom of the inner arc surface is provided with tension grooves (12), so that the inner arc surface is offset towards the outer arc surface after contacting the pin; A semi-circular groove (13) is provided on the inner arc surface, and the two ends of the semi-circular groove (13) are set as vertical end faces (14).

2. A rotatable switching pin standard power plug according to claim 1, characterized in that The bottom end of the connecting cylinder (8) located on the lower side is fixedly connected to a threaded cylinder seat (15), and a threaded collar (16) is rotatably sleeved on the middle part of the connecting pin (3). The threaded collar (16) is threadedly connected to the threaded cylinder seat (15), and the top of the connecting pin (3) is inserted between the two arc-shaped connecting cylinder seats (10).

3. A rotatable switching pin standard power plug according to claim 2, characterized in that The rotation adjustment component includes: Spiral protrusions (17): The circular mounting component (7) is provided with a plurality of longitudinally arranged spiral protrusions (17). Threaded seat (18), both sides of the connecting cylinder (8) are fixedly connected to the threaded seat (18), and the threaded seat (18) is threadedly connected to the plurality of spiral protrusions (17).

4. A rotatable switching pin standard power plug according to claim 3, characterized in that The elastic connection structure (300) includes: Mounting sleeve (19), the two connecting cylinders (8) are rotatably connected to one end of each other, and a curved cylinder section (20) is provided between the two mounting sleeves (19). The mounting sleeve (19) is made of insulating material. The metal cylinder (21) is rotatably connected to one end of each of the two metal rotating cylinder seats (9), and a spiral metal wire (22) is provided between the two metal cylinders (21).

5. A rotatable switching pin standard power plug according to claim 4, characterized in that A bucket-shaped pusher (23) is fixedly fitted onto the mounting sleeve (19).

6. A rotatable switching pin standard power plug according to claim 5, characterized in that The rotary adjustment structure (400) includes: Rotating ring sleeve (24), the upper and lower sides of the middle part of the power supply housing (1) are fixedly connected to the rotating ring sleeve (24), and the lifting screw (25) is rotatably connected to the rotating ring sleeve (24). Lifting slide (26), the lifting slide (26) is fixedly connected inside the power supply housing (1); The lifting ring sleeve (27) is threaded onto the lifting screw (25), and the lifting ring sleeve (27) is slidably connected to the lifting groove (26) through a sliding member; Three wedge-shaped push rods (28) are fixedly connected to the circumference of the lifting ring sleeve (27). The wedge-shaped push rods (28) correspond one-to-one with the bucket-shaped pusher (23), and the wedge-shaped push rods (28) are in contact with the outer wall of the bucket-shaped pusher (23).

7. A rotatable switching pin standard mains plug according to claim 6, characterised in that, The rotating ring (24) has multiple calibration points (29) on its circumference. The lifting screw (25) is fixedly connected to a rotating handle (30). The rotating handle (30) is fixedly connected to a rotating protrusion (31) on its circumference. The rotating protrusion (31) corresponds to the calibration points (29).

8. A rotatable switching pin standard power plug according to claim 7, characterized in that The connecting pin (3) is set to a rectangle or a rod shape.

Images