CN210379682U

CN210379682U - Variable socket based on expansion module

Info

Publication number: CN210379682U
Application number: CN201921417646.4U
Authority: CN
Inventors: 许进; 王华玲; 姜海林; 宗国成; 王梓豪; 汪杰; 王一鸣
Original assignee: Huaiyin Institute of Technology
Current assignee: Huaiyin Institute of Technology
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-04-21
Anticipated expiration: 2029-08-29

Abstract

The utility model discloses a variable socket based on expansion module, the socket includes the socket body that comprises base and upper cover, is provided with jack and three-pin plug that is used for connecting power on the socket body, still is provided with switch and the pilot lamp that is used for instructing whether switch is opened on the upper cover, is provided with slidable expansion piece on the socket body, is provided with the jack on the expansion piece; the triangular plug is arranged on the rotary extension block, the socket body is movably connected with the rotary block, the rotary extension block is detachably connected with the rotary block, and the jacks on the extension block and the socket body are provided with copper guide pillars for connecting wires and plugs. The socket is provided with an expansion block, and the expansion block can be pulled out to increase the space on the power strip; the rotary extension block fixed on the socket can be taken down and used in a narrow space; a connecting wire is arranged between the rotary extension block and the socket, and the variable socket can be switched between a wired state and a wireless state.

Description

Variable socket based on expansion module

Technical Field

The utility model relates to the technical field of household appliances, concretely relates to variable socket based on extend module.

Background

The socket is an article with very high use frequency in daily life, and is often inconvenient in the use process. When some larger plugs are plugged into the sockets or the power strip, the plugs occupy more places, so that other plugs cannot be plugged into the sockets or the power strip, and the phenomenon that the plugs cannot be plugged into the jacks is caused. When the environment of the socket is narrow, the wireless power strip cannot be plugged into the socket; and the power cord of wired row of inserting is longer, can not fine arrangement and accomodate.

Disclosure of Invention

To the above defect, the utility model provides a variable socket based on extend module is equipped with on the socket and extends the piece, can pull out and extend the piece and increase the space on inserting the row, when great plug is inserted on the socket, also can insert other plugs again. The rotary extension block fixed on the socket can be taken down and used in a narrow space; a connecting wire is arranged between the rotary extension block and the socket, and the variable socket can be switched between a wired state and a wireless state, so that the variable socket is more convenient to use. The specific technical scheme is as follows:

the utility model provides a variable socket based on extend module, includes the socket ontology who constitutes by base and upper cover, is provided with the jack on the socket ontology and is used for connecting the tripod plug of power, its characterized in that still includes:

the socket comprises a socket body, an expansion block, a connecting piece and a connecting piece, wherein the socket body is provided with a socket hole;

the rotary positioning module is movably connected to the socket body, the three-pin plug is arranged on the rotary positioning module, the rotary positioning module rotates to adjust the angular position of the triangular plug relative to the socket body, the rotary positioning module comprises a rotary block and a rotary extension block, the rotary block is movably connected to the socket body, a gear-shaped disc is arranged on the rotary block and positioned in the socket body, a pull rod is movably connected to the side of the base, the end of the pull rod protrudes, a spring is sleeved on the pull rod, the end of the pull rod props against the edge of the gear-shaped disc on the rotary block under the action of the spring, and the other end of the pull rod is positioned outside the base and is connected with a pull rod; rotatory extension piece and rotatory piece detachable are connected, and the triangle plug sets up on rotatory extension piece, is provided with the wire on the rotatory extension piece and passes rotatory piece and socket ontology inner circuit connection.

As an improvement of the scheme, the base and the upper cover are box-shaped structures with one open end, and a socket body formed by combining the base and the upper cover is a hollow cubic shell; the upper cover is provided with an expanding block mounting groove, the expanding block mounting groove is provided with an opening at the edge of the upper cover, the base is correspondingly provided with openings, two sides of each opening are provided with a restraining block, the restraining blocks are vertical plates connected to the base, the end parts of the two restraining blocks are provided with protrusions extending in the horizontal direction, the protrusions at the end parts of the restraining blocks extend towards the space between the two restraining blocks, and two ends of the opening on the base are also provided with protruding positioning claws; the expansion block is of a cubic structure, jacks are arranged on the expansion block, copper guide pillars used for connecting electric wires and plugs are correspondingly arranged at the positions of the jacks, sliding grooves are convexly formed in the two sides of the expansion block and correspond to the end portions of the restraint blocks, two rows of fixing claws are arranged at the bottom of the expansion block and correspond to the positions of the positioning claws, each row of fixing claws are bulges with equal intervals, the width of each sliding groove is larger than the width of the bulge of the end portion of the restraint block, the expansion block can move along the direction of the sliding groove and can move perpendicular to the direction of the sliding groove, the positioning claws are meshed with and separated from the fixing claws when the expansion block moves perpendicular to the direction of the sliding groove, the expansion block can slide along the direction of the sliding groove when the positioning claws are separated from the fixing claws, and the two sides of.

As an improvement of this scheme, rotatory piece is located socket ontology lateral part and is provided with circular recess, is provided with centrosymmetric corresponding groove on the circular recess lateral wall, and it has the opening to correspond the groove tip, rotatory extension piece is the cylinder structure in the circular recess of can imbedding, and the position that corresponds the groove on the rotatory extension piece is provided with corresponding piece, corresponds the piece embedding and corresponds the inslot and rotate the realization rotatory extension piece and be connected with rotatory piece, is provided with the three-pin plug on the rotatory extension piece, and rotatory piece center is provided with the wire and puts out the hole, and rotatory extension piece center is provided with the through-hole and supplies the wire to pass.

As an improvement of the scheme, a wire guide block is arranged between the constraint blocks on the base, a wire through hole is formed in the wire guide block, and a wire connected to the expansion block is threaded in the wire through hole.

As an improvement of the scheme, the surface of the expanding block is provided with a protruded anti-skid belt which is a bar-shaped protrusion distributed uniformly; the expansion block is characterized in that a lifting groove is formed in the side portion of the expansion block, and the lifting groove is a groove.

As an improvement of this scheme, the upper cover inboard is provided with the lamp shade mounting groove, be provided with two lamp shade fixed slots in the lamp shade mounting groove, the lamp shade is made for transparent material, and it detains to be provided with the installation corresponding to the lamp shade fixed slot on the lamp shade, and lamp shade embedding lamp shade mounting groove realizes the fixed of lamp shade in the embedding fixed slot, and the lamp shade center is provided with the recess, and LED fluorescent tube embedding recess is interior and fixed connection.

As an improvement of the scheme, the expansion block is of a U-shaped structure, the expansion block mounting groove corresponds to the expansion block, the inner surface of the expansion block embedding expansion block mounting groove is spliced into a complete plane, two-pin jacks are formed in the expansion block, a triangular jack is arranged on the upper cover, and when the expansion block is embedded into the mounting groove, a zero line jack in the three-pin jack of the upper cover is located between the two-pin jacks on the expansion block.

As an improvement of the scheme, a rotation indicator is arranged on the surface of the rotation extension block, and the indication direction of the rotation indicator is the rotation direction when the rotation extension block is separated from the rotation block.

The use method of the variable socket based on the expansion module comprises the following steps:

a. when the LED lamp is not used, the power switch is turned off, and the LED lamp is turned off;

b. when in use, the three-pin plug of the variable socket is inserted into a fixed socket on a wall or other socket banks; fingers grasp the lifting groove and the anti-skid belt, lift the expanding block and pull the expanding block to a proper position, and put down the expanding block to enable the positioning claw at the bottom of the expanding block to be occluded and fixed with the fixed claw; when the power switch is turned on, the LED lamp is on, and the variable socket is used;

c. when the socket is used in a corner or a special position environment, the rotating block of the socket is rotated to adjust the position, and the specific adjusting method comprises the steps of holding the pull rod sleeve, pulling out the pull rod, rotating the rotating extension block in the opposite direction of the rotating indicator mark after pulling out the pull rod sleeve, loosening the pull rod sleeve after rotating to a proper position, and abutting the pull rod against the rotating block under the action of the spring to finish the position adjustment of the rotating extension block;

d. under narrow environment, when this variable socket can't insert fixed socket completely, can take off rotatory extension piece, pull out partial wire, this variable socket becomes wired socket this moment, and its concrete operation method is: rotating the rotary extension block according to the direction indicated by the rotary indicator, taking down the rotary extension block, pulling out the lead in the socket body, and inserting the three-pin plug on the rotary extension block into the fixed socket for use; when the wire is stored, the wire is firstly combed into the socket, the corresponding block on the rotary extension block is inserted into the corresponding groove on the rotary block, and the rotary extension block can be fixed on the rotary seat by rotating the rotary extension block in the opposite direction of the rotary indicator.

Compared with the prior art, the utility model adopts the above technical scheme, the technical effect who has is:

1. the utility model discloses a variable socket based on extend module is provided with mobilizable extension piece in socket ontology, be provided with the jack on the extension piece, remove the adjustable jack distance of extension piece, avoid appearing because the too big unable simultaneous use's of a plurality of plugs that lead to of plug problem.

2. The utility model discloses a variable socket based on extend module, its tripod plug of connecting other sockets sets up on rotatory extension piece, rotatory extension piece detachable connects in rotatory piece, the rotatable adjusting position of rotatory piece adjusts tripod plug angle, convenient to use according to service environment.

3. The utility model discloses a variable socket based on extend module, its rotatory extension piece can with rotatory piece separation, be connected with the wire on the rotatory extension piece, the wire can be accomodate into the socket main part by rotatory piece central through hole in or pull out the socket main part, realizes the conversion of wireless mode and wired mode, the daily use of being convenient for more.

Drawings

Fig. 1 is a schematic structural diagram of the expansion module-based variable socket;

FIG. 2 is a schematic diagram of a variable socket three-pin plug side structure based on an expansion module;

FIG. 3 is a schematic view of the base structure;

FIG. 4 is a partial structural schematic view of the base;

FIG. 5 is a schematic view of the structure of the rotary extension block;

FIG. 6 is a schematic view of the structure of the rotating block;

FIG. 7 is a schematic view of the structure of the upper cover;

FIG. 8 is a schematic structural view of the upper cover after parts are assembled;

FIG. 9 is a first schematic diagram of the expansion block structure;

FIG. 10 is a schematic diagram of the expansion block structure II;

FIG. 11 is a schematic structural diagram of the expansion block after parts are assembled;

FIG. 12 is a schematic view of the expansion block cooperating with the base;

FIG. 13 is a schematic view of a structure of the expansion block cooperating with the base;

FIG. 14 is a sectional view taken along line A-A;

FIG. 15 is a partial enlarged view of the position I;

FIG. 16 is a partial structural view of the lead guide block of the base;

FIG. 17 is a schematic view of the fixed block structure;

FIG. 18 is a schematic structural view of the fixed block after parts are assembled;

FIG. 19 is a schematic structural view of the live wire connecting copper guide pillar I;

FIG. 20 is a schematic structural view of the zero line connecting copper guide pillar II;

FIG. 21 is a schematic structural view of the ground wire connecting copper guide post;

FIG. 22 is a schematic view of a connection structure of a portion of the cover lamp housing;

FIG. 23, a cross-sectional view taken along line B-B;

FIGS. 24 and II are enlarged partial views;

reference numerals: 1. a base; 2. an upper cover; 3. expanding blocks; 4. an anti-slip band; 5. a lamp shade; 6. a power switch; 7. a three-pin plug; 8. a screw; 9. rotating the indicator; 10. rotating the extension block; 11. rotating the block; 12. a threaded hole; 13. a lower fixed block; 14. a constraint block; 15. a positioning claw; 16. reinforcing the blocks; 17. a pull rod; 18. a spring; 19. a pull rod sleeve; 20. a wire outlet; 21. a corresponding block; 22. a corresponding groove; 23. a switch mounting groove; 24. a lampshade fixing groove; 25. a lampshade mounting groove; 26. an expanding block mounting groove; 27. an upper fixed block; 28. an LED lamp; 29. a fixed block; 30. lifting the groove; 31. an anti-extraction block; 32. a chute; 33. the live wire is connected with the copper guide pillar I mounting groove; 34. the live wire is connected with the copper guide pillar I fixing groove; 35. the live wire is connected with the copper guide pillar I; 36. a fixed jaw; 37. a wire guide block; 38. a wire through hole; 39. the live wire is connected with the copper guide pillar II fixing groove; 40. the live wire is connected with the copper guide pillar II mounting groove; 41. the ground wire is connected with the copper guide pillar mounting groove; 42. the ground wire is connected with the copper guide pillar fixing groove; 43. the zero line is connected with a copper guide pillar II fixing groove; 44. the zero line is connected with the copper guide pillar II mounting groove; 45. the live wire is connected with a copper guide pillar II; 46. the ground wire is connected with the copper guide pillar; 47. the zero line is connected with a copper guide pillar II; 48. a live line; 49. a zero line; 50. a ground wire; 51. a switch connecting column I; 52. a switch connecting column II; 53. the zero line is connected with the copper guide pillar I mounting groove; 54. the zero line is connected with the copper guide pillar I fixing groove; 55. the zero line is connected with the copper guide pillar I; 56. an LED lamp connecting column I; 57. and an LED lamp connecting column II.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout.

As shown in fig. 1 and 2, the variable socket based on the expansion module comprises a socket body composed of a base 1 and an upper cover 2, wherein the base 1 and the upper cover 2 are box-shaped structures with one ends open, the socket body composed of the base 1 and the upper cover 2 is a hollow cubic shell, and the base 1 and the upper cover 2 are connected through bolts. The socket body is provided with a jack and a three-pin plug 7 for connecting a power supply, and the upper cover 2 is also provided with a power switch 6 and an indicator light for indicating whether the power switch 6 is turned on. Be provided with slidable on the socket ontology and extend piece 3, extend and be provided with the jack on the piece 3, the triangle plug sets up on rotatory extension piece 10, and swing joint has rotatory piece 11 on the socket ontology, and rotatory extension piece 10 is connected with rotatory 11 detachable, and the jack that extends on piece 3 and the socket ontology all is provided with the copper guide pillar that is used for connecting wire and plug.

As shown in fig. 3 to 7, the upper cover 2 is provided with a switch mounting groove 23, a shade fixing groove 24, a shade mounting groove 25, an expansion block mounting groove 26, and an upper fixing block 27. The expansion block installation groove 26 has an opening at the edge of the upper cover 2. The base 1 is correspondingly provided with an opening, two sides of the opening are provided with constraint blocks 14, the constraint blocks 14 are connected to a vertical plate of the base 1, the end parts of the two constraint blocks 14 are provided with protrusions extending in the horizontal direction, the end parts of the two constraint blocks 14 protrude to extend between the two constraint blocks 14, and two ends of the opening of the base 1 are further provided with protruding positioning claws 15. The part, located socket body inside, of the rotating block 11 is provided with a gear-shaped disc, the side of the base 1 is movably connected with a pull rod 17, the end of the pull rod 17 is protruded, a spring 18 is sleeved on the pull rod 17, the end of the pull rod 17 abuts against the edge of the gear-shaped disc on the rotating block 11 under the action of the spring 18, and the spring 18 acts on the pull rod 17 to extrude the rotating block 11 so as to prevent the rotating block 11 from rotating easily. The other end of the pull rod 17 is positioned outside the base 1 and is connected with a pull rod sleeve 19 for grasping. The rotary block 11 is located the socket body outside part and is provided with circular recess, be provided with centrosymmetric corresponding groove 22 on the circular recess lateral wall, it has the opening to correspond groove 22 tip, rotary extension piece 10 is the cylinder structure of embeddable circular recess, the position that corresponds groove 22 on the rotary extension piece 10 is provided with corresponding piece 21, it realizes being connected of rotary extension piece 10 and rotary block 11 to correspond in 21 embedding corresponding groove 22 and rotate, be provided with three-pin plug 7 on the rotary extension piece 10, rotary extension piece 10 center is provided with wire outlet 20, rotary block 11 center is provided with the through-hole and supplies the wire to pass, wear out and get into the socket body by rotary block 11 center through-hole after the wire is connected with rotary extension piece 10 last three-pin plug 7, ground wire 50 on the wire, zero line 49 and live wire 48 are connected after getting into the socket body. The surface of the rotary extension block 10 is provided with a rotary indicator 9, and the indication direction of the rotary indicator 9 is the rotation direction when the rotary extension block 10 is separated from the rotary block 11.

The upper cover 2 is provided with an upper fixing block 27. The base 1 is correspondingly provided with a lower fixing block 13 which is used for fixing a fixing block 29 in a matching way, and the fixing block 29 is used for fixing a live wire connecting copper guide pillar II 45, a ground wire connecting copper guide pillar 46 and a zero wire connecting copper guide pillar II 47. The fixing block 29 is provided with a live wire connecting copper guide pillar II fixing groove 39, a live wire connecting copper guide pillar II mounting groove 40, a ground wire connecting copper guide pillar mounting groove 41, a ground wire connecting copper guide pillar fixing groove 42, a zero wire connecting copper guide pillar II fixing groove 43 and a zero wire connecting copper guide pillar II mounting groove 44. The live wire connecting copper guide pillar II 45 is arranged in the live wire connecting copper guide pillar II mounting groove 40 and is fixed in a live wire connecting copper guide pillar II fixing groove 39 on the fixing block 29 through a screw; the zero line connecting copper guide pillar II 47 is arranged in the zero line connecting copper guide pillar II mounting groove 44 and is fixed in a zero line connecting copper guide pillar II fixing groove 43 on the fixed block 29 through a screw; the ground connecting copper post 46 is mounted in the ground 50 connecting copper post mounting groove 41 and is fixed to the ground connecting copper post fixing groove 42 of the fixing block 29 by a screw.

As shown in fig. 9-11, the expansion block 3 is a cubic structure, and the expansion block 3 is provided with a jack, and a copper guide post for connecting a wire and a plug is correspondingly arranged at the position of the jack. Expand and be provided with I mounting groove 33 of live wire connection copper guide pillar, I fixed slot 34 of live wire connection copper guide pillar, I mounting groove 53 of zero line connection copper guide pillar and I fixed slot 54 of zero line connection copper guide pillar on the piece 3 corresponding the jack. The live wire connecting copper guide pillar I35 is arranged in the live wire connecting copper guide pillar I mounting groove 33 and is fixed in a live wire connecting copper guide pillar I fixing groove 34 on the expansion block 3 through a screw; the zero line connecting copper guide pillar I55 is arranged in the zero line connecting copper guide pillar mounting groove 53 and is fixed in a zero line connecting copper guide pillar I fixing groove 54 on the expansion block 3 through screws. The two sides of the expanding block 3 are convexly provided with sliding grooves 32 corresponding to the end parts of the restraining blocks 14, two rows of fixing claws 36 are arranged at the bottom of the expanding block 3 corresponding to the positions of the positioning claws 15, and each row of fixing claws 36 are bulges with equal intervals. The surface of the expanding block 3 is provided with a raised anti-skid belt 4, and the anti-skid belt 4 is a strip-shaped projection which is uniformly distributed; the lateral part of the expansion block 3 is provided with a lifting groove 30, and the lifting groove 30 is a groove. The width of the sliding groove 32 is larger than the width of the end part protrusion of the restraint block 14, the expansion block 3 can move along the direction of the sliding groove 32 and in the direction perpendicular to the sliding groove 32, and when the expansion block 3 moves in the direction perpendicular to the sliding groove 32, the positioning claw 15 is engaged with and separated from the fixing claw 36, as shown in fig. 12-15. When the positioning claws 15 and the fixing claws 36 are separated, the expansion block 3 can slide along the direction of the sliding groove 32, and the two sides of the end part of the expansion block 3 in the socket body are provided with the raised anti-extraction blocks 31, so that the expansion block 3 is prevented from being separated from the socket body.

As shown in fig. 16, a lead guiding block 37 is disposed between the constraining blocks 14 on the base 1, a lead through hole 38 is disposed on the lead guiding block 37, and a lead connected to the expanding block 3 is threaded through the lead through hole 38. The wire guide block 37 on the base 1 is used for facilitating the stretching and shrinking of the wire when the expansion block 3 is pulled out or pushed in, and the wire passes through the wire through hole 38 on the wire guide block 37.

Fig. 17 to 21 show the copper guide posts and the fixing component structure for fixing the copper guide posts, which are disposed corresponding to the insertion holes on the tea table, and the structure of this part is a common socket structure at present, and the detailed structural description is omitted.

As shown in fig. 22-24, a lampshade mounting groove 25 is formed in the inner side of the upper cover 2, two lampshade fixing grooves 24 are formed in the lampshade mounting groove 25, the lampshade 5 is made of a transparent material, a mounting buckle is arranged on the lampshade 5 corresponding to the lampshade fixing groove 24, the lampshade 5 is embedded into the lampshade mounting groove 25, the mounting buckle is embedded into the fixing groove to fix the lampshade 5, a groove is formed in the center of the lampshade 5, and the LED lamp 28 is embedded into the groove and fixedly connected with the groove.

The internal wiring mode of the plug is as follows, a live wire 48 connected with a rotary extension block 10 is connected with a switch connecting column I51, a lead is connected with an LED lamp connecting column I56 from a switch connecting column II 52, the lead connected with the LED lamp connecting column I56 is connected with a live wire connecting copper guide pillar II 45, and the lead connected with the live wire connecting copper guide pillar II 45 is connected with a live wire connecting copper guide pillar I35; and a zero line 49 connected with the rotary extension block 10 is connected to an LED lamp connecting column II 57, a lead connected with the LED lamp connecting column II 57 is connected to a zero line connecting copper guide pillar II 47, and a lead connected with the zero line connecting copper guide pillar II 47 is connected to a zero line connecting copper guide pillar I55. After the three-pin plug 7 is inserted into the socket, the power switch 6 is turned on, the LED lamp 28 is on, and the power supply is conducted; the power switch 6 is turned off, the LED lamp 28 is turned off, and the power is turned off.

In order to further reduce the volume of the socket body, the expansion block 3 can be of a U-shaped structure, the expansion block mounting groove 26 corresponds to the expansion block 3, the expansion block 3 is embedded into the inner surface of the expansion block mounting groove 26 and is spliced into a complete plane, two-pin jacks are arranged on the expansion block 3, triangular jacks are arranged on the upper cover 2, and when the expansion block 3 is embedded into the mounting groove, zero line 49 jacks in the three-pin jacks on the upper cover 2 are located between the two-pin jacks on the expansion block 3.

a. when the LED lamp is not used, the power switch 6 is turned off, and the LED lamp 28 is turned off;

b. when in use, the three-pin plug 7 of the variable socket is inserted into a fixed socket on a wall or other socket banks; fingers grasp the lifting groove 30 and the anti-skid belt 4, lift the expanding block 3 and pull the expanding block to a proper position, and put down the expanding block 3 to enable the bottom positioning claw 15 to be occluded and fixed with the fixed claw 36; when the power switch 6 is turned on, the LED lamp 28 is on, and the variable socket is used;

c. when the socket is used in a corner or a special position environment, the rotating block 11 of the socket is rotated to adjust the position, the specific adjustment method is that the pull rod sleeve 19 is held, the pull rod 17 is pulled out, the rotating extending block 10 is rotated in the opposite direction of the rotating indicator 9 after being pulled out, the pull rod sleeve 19 is loosened after being rotated to a proper position, and the pull rod 17 is propped against the rotating block 11 under the action of the spring 18 to complete the position adjustment of the rotating extending block 10;

d. under narrow environment, when this variable socket can't be inserted completely on fixed socket, can take off rotatory extension piece 10, pull out partial wire, this variable socket becomes wired socket this moment, and its concrete operation method is: rotating the rotary extension block 10 according to the direction indicated by the rotary indicator 9, removing the rotary extension block 10, pulling out the lead in the socket body, and inserting the three-pin plug 7 on the rotary extension block 10 into the fixed socket for use; when the wire is stored, firstly, the wire is combed into the socket, the corresponding block 21 on the rotary extending block 10 is inserted into the corresponding groove 22 on the rotary block 11, and the rotary extending block 10 is rotated in the opposite direction of the rotary indicator 9, so that the rotary extending block 10 can be fixed on the rotary seat.

The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention.

Claims

1. The utility model provides a variable socket based on extend module, includes the socket ontology who constitutes by base and upper cover, is provided with the jack on the socket ontology and is used for connecting the tripod plug of power, its characterized in that still includes:

2. A variable socket based on an expansion module according to claim 1, wherein the base and the upper cover are box-shaped structures with one open end, and the socket body formed by the combination of the base and the upper cover is a hollow cubic shell; the upper cover is provided with an expanding block mounting groove, the expanding block mounting groove is provided with an opening at the edge of the upper cover, the side wall of the base is provided with an opening corresponding to the expanding block mounting groove, two sides of the opening on the base are provided with restraining blocks, the restraining blocks are vertical plates connected to the base, the end parts of the two restraining blocks are provided with bulges extending in the horizontal direction, the end parts of the restraining blocks are bulged to extend between the two restraining blocks, and two ends of the opening on the base are also provided with bulged positioning claws; the expansion block is of a cubic structure, jacks are arranged on the expansion block, copper guide pillars used for connecting electric wires and plugs are correspondingly arranged at the positions of the jacks, sliding grooves are convexly formed in the two sides of the expansion block and correspond to the end portions of the restraint blocks, two rows of fixing claws are arranged at the bottom of the expansion block and correspond to the positions of the positioning claws, each row of fixing claws are bulges with equal intervals, the width of each sliding groove is larger than the width of the bulge of the end portion of the restraint block, the expansion block can move along the direction of the sliding groove and can move perpendicular to the direction of the sliding groove, the positioning claws are meshed with and separated from the fixing claws when the expansion block moves perpendicular to the direction of the sliding groove, the expansion block can slide along the direction of the sliding groove when the positioning claws are separated from the fixing claws, and the two sides of.

3. The variable socket based on the expansion module as claimed in claim 2, wherein the rotary block is provided with a circular groove at the outer part of the socket body, the circular groove is provided with corresponding slots with symmetrical centers at the side wall, the corresponding slot has an opening at the end, the rotary extension block is a cylindrical structure capable of being inserted into the circular groove, the corresponding block is provided at the position corresponding to the corresponding slot on the rotary extension block, the corresponding block is inserted into the corresponding slot and rotates to connect the rotary extension block and the rotary block, the rotary extension block is provided with a three-pin plug, the rotary block is provided with a wire outlet at the center, and the rotary extension block is provided with a through hole at the center for a wire to pass through.

4. The variable socket based on the expansion module as claimed in claim 2, wherein a lead guide block is arranged between the constraining blocks on the base, a lead through hole is arranged on the lead guide block, and a lead connected to the expansion block is threaded through the lead through hole.

5. An expansion module-based variable socket according to claim 2, wherein the expansion block is provided with raised anti-slip strips on the surface, and the anti-slip strips are uniformly distributed strip-shaped protrusions; the expansion block is characterized in that a lifting groove is formed in the side portion of the expansion block, and the lifting groove is a groove.

6. The variable socket based on the expansion module as claimed in any one of claims 1 to 5, wherein a lampshade installation groove is formed on the inner side of the upper cover, two lampshade fixing grooves are formed in the lampshade installation groove, the lampshade is made of transparent material, an installation buckle is arranged on the lampshade corresponding to the lampshade fixing grooves, the lampshade is embedded in the lampshade installation groove, the installation buckle is embedded in the fixing grooves to fix the lampshade, a groove is formed in the center of the lampshade, and the LED lamp tube is embedded in the groove and fixedly connected with the groove.

7. The variable socket based on the expansion module as claimed in claim 6, wherein the expansion block is a U-shaped structure, the expansion block mounting groove is arranged corresponding to the expansion block, the expansion block is embedded into the inner surface of the expansion block mounting groove to form a complete plane, two-pin jacks are arranged on the expansion block, a triangular jack is arranged on the upper cover, and when the expansion block is embedded into the mounting groove, a zero line jack in the three-pin jack of the upper cover is located between the two-pin jacks on the expansion block.

8. An expansion module-based variable socket according to claim 7, wherein a surface of the rotary extension block is provided with a rotary indicator, and the rotary indicator indicates a direction in which the rotary extension block is rotated when the rotary extension block is disengaged from the rotary block.