Drive shaft for a retractable power plug

1 . A drive shaft for a retractable power plug, comprising:

a shaft body provided with a first helical sliding groove and a second helical sliding groove in an axial direction on an outer surface thereof,

wherein the first helical sliding groove and the second helical sliding groove have overlapping orthographic projections in a same direction, forming a transition groove section at an intersection of the projections; and

the first helical sliding groove is configured to guide a first abutment block engaged therewith to move in the axial direction of the shaft body; and

the second helical sliding groove is configured to guide a second abutment block engaged therewith to move in the axial direction of the shaft body,

wherein a groove depth of the first helical sliding groove is equal to or greater than that of the second helical sliding groove to prevent the first abutment block in the first helical sliding groove from disengaging from the first helical sliding groove and entering the second helical sliding groove; and

a connector arranged at one end of the shaft body for rotatably installing the drive shaft onto a power plug, enabling the drive shaft to rotate around the axial direction of the shaft body.

2 . The drive shaft according to claim 1 , wherein the connector is rod-shaped, with a cross-sectional area decreasing in a direction away from the shaft body.

3 . The drive shaft according to claim 1 , wherein the connector is rod-shaped, and a rotary groove is provided at an end of the connector away from the shaft body.

4 . The drive shaft according to claim 1 , wherein chamfers are machined at intersections of inner walls and bottom walls of both the first helical sliding groove and the second helical sliding groove.

5 . A drive shaft for a retractable power plug, comprising:

a shaft body, provided with a first helical sliding groove and a second helical sliding groove in an axial direction on an outer surface thereof,

wherein the first helical sliding groove and the second helical sliding groove have overlapping orthographic projections in a same direction, forming a transition groove section at an intersection of the projections; and

the first helical sliding groove is configured to guide a first abutment block engaged therewith to move in the axial direction of the shaft body; and

the second helical sliding groove is configured to guide a second abutment block engaged therewith to move in the axial direction of the shaft body; and

a connector arranged at one end of the shaft body for rotatably installing the drive shaft onto a power plug, enabling the drive shaft to rotate around the axial direction of the shaft body; and

wherein when the drive shaft rotates, the first abutment block in the first helical sliding groove and the second abutment block in the second helical sliding groove interact, moving together in the axial direction of the shaft body.

6 . The drive shaft according to claim 5 , wherein the connector is rod-shaped, with a cross-sectional area decreasing in a direction away from the shaft body.

7 . The drive shaft according to claim 5 , wherein the connector is rod-shaped, and a rotary groove is provided at an end of the connector away from the shaft body.

8 . The drive shaft according to claim 5 , wherein chamfers are machined at intersections of inner walls and bottom walls of both the first helical sliding groove and the second helical sliding groove.

9 . A drive assembly applied to a retractable power plug, comprising:

a base housing, with a first abutment block fixedly mounted thereon; and

a shaft body provided with a first helical sliding groove and a second helical sliding groove in an axial direction on an outer surface thereof,

wherein the first helical sliding groove and the second helical sliding groove have overlapping orthographic projections in a same direction, forming a transition groove section at an intersection of the projections; and

the first abutment block is embedded in the first helical sliding groove, so that when the first abutment block moves along a path of the first helical sliding groove, the first abutment block drives the shaft body to rotate in the axial direction thereof; and

the second helical sliding groove is configured to guide a second abutment block engaged therewith to move in the axial direction of the shaft body; and

a connector arranged at one end of the shaft body for rotatably installing a drive shaft onto a power plug; and

wherein when the first abutment block slides along a path of the first helical sliding groove and drives the shaft body to rotate, the second abutment block in the second helical sliding groove moves in the axial direction of the shaft body.

10 . The drive assembly according to claim 9 , wherein a groove depth of the first helical sliding groove is equal to or greater than that of the second helical sliding groove to prevent the first abutment block in the first helical sliding groove from disengaging from the first helical sliding groove and entering the second helical sliding groove.

11 . The drive assembly according to claim 9 , wherein the connector is rod-shaped, with a cross-sectional area decreasing in a direction away from the shaft body.

12 . The drive assembly according to claim 9 , wherein the connector is rod-shaped, and a rotary groove is provided at an end of the connector away from the shaft body.

13 . The drive assembly according to claim 9 , wherein chamfers are machined at intersections of inner walls and bottom walls of the first helical sliding groove and the second helical sliding groove.

14 . The drive assembly according to claim 9 , wherein the first abutment block comprises an accommodation part and an abutment part, the accommodation part matches a shape of a cavity of the first helical sliding groove, and the abutment part is an inwardly recessed curved surface in contact with a bottom end face of the first helical sliding groove.

15 . The drive assembly according to claim 9 , further comprising a drive assembly and a socket body,

wherein the drive assembly and the socket body are both arranged within a base housing; and

the drive assembly is configured to: in response to a user operation, drive the socket body to move along a preset direction; and

the socket body comprises:

a main housing, with at least one first through hole provided thereon; and

a movable seat slidably arranged within the main housing; and

a plug terminal fixed on the movable seat and corresponding in position to the first through hole,

wherein the movable seat is fixedly provided with a second abutment block embedded in the second helical sliding groove; and

when the socket body moves, the first abutment block forces the shaft body to rotate through engagement with the first helical sliding groove; the rotation of the shaft body drives the movable seat to move in the axial direction of the shaft body through engagement between the second helical sliding groove and the second abutment block, thereby causing the plug terminal to extend out of or retract from the first through hole.

16 . The drive assembly according to claim 15 , wherein the drive assembly comprises a drive ring and an upper rotating cover,

wherein the base housing forms an accommodation cavity with a top opening, the drive ring is rotatably arranged within the accommodation cavity, and the upper rotating cover covers the opening of the accommodation cavity and is drivingly connected to the drive ring to rotate synchronously; and

the socket body is movably arranged within the accommodation cavity, an outer side of the socket body is provided with a drive slider, an inner wall of the drive ring is provided with a lifting guide rail, and the drive slider is engaged with the lifting guide rail in a sliding manner, so that when rotating, the drive ring pushes the socket body to move in a preset direction.

17 . The drive assembly according to claim 16 , wherein the upper rotating cover is provided with a first engagement protrusion, and the drive ring is provided with a first engagement groove matching the first engagement protrusion.

18 . The drive assembly according to claim 16 , wherein the upper rotating cover and the drive ring are of an integrally formed structure.

19 . The drive assembly according to claim 16 , wherein the upper rotating cover is fixedly connected to the drive ring through a fastener.

20 . The drive assembly according to claim 16 , wherein the inner wall of the drive ring is provided with a plurality of sets of end-to-end connected lifting guide rails.