CN217334487U

CN217334487U - Multifunctional extension socket

Info

Publication number: CN217334487U
Application number: CN202220643437.7U
Authority: CN
Inventors: 郭彬权
Original assignee: Dongguan Zhenghao Electrical Appliance Co ltd
Current assignee: Dongguan Zhenghao Electrical Appliance Co ltd
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2022-08-30
Anticipated expiration: 2032-03-22

Abstract

The utility model belongs to the technical field of supplementary consumer electronics, especially, relate to a multi-functional row inserts, which comprises an upper housing, lower casing, rotatory grafting device, controlling means and many grafting devices, rotatory grafting device, many grafting devices and the equal fixed mounting of controlling means are between last casing and lower casing, and rotatory grafting device, many grafting devices and controlling means all install in the mounting groove bottom surface of casing down, the top that controlling means's switch upwards passed the casing extends to the casing, electric connection between rotatory grafting device and many grafting devices all and the controlling means, and the power cord of many grafting devices passes the lateral wall behind casing and the casing combination down, upward be provided with five at least connection bases on the casing, and each open-top of connecting the base all communicates with the top of last casing. Through the arrangement, the multifunctional row can be inserted into the charging and power-inserting device after the installation is finished, and the fixed angle and the optional angle can be met.

Description

Multifunctional extension socket

Technical Field

The utility model belongs to the technical field of supplementary consumer electronics, especially, relate to a multi-functional row inserts.

Background

The socket is a multi-position socket with wires, also called a patch board or a socket, a scholar wire lengthening assembly or an extension line socket. A strip refers to a multi-position receptacle that has a power cord and a plug and that can be moved. More than one power plug can be connected, so that the space and the circuit are saved. The socket is roughly divided into: bakelite, ceramic, plastic, etc. In the prior art, the multi-hole position is arranged on the power strip to realize that the power strip can provide power connection hole positions for a plurality of electric devices, so that more electric devices can be extended to be connected with power, and the technical problem of connection angle fixation exists when the power strip is used by adopting the method in the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multi-functional row inserts, it has the fixed technical problem of connection angle to aim at solving the row of inserting among the prior art.

In order to achieve the above object, an embodiment of the present invention provides a multifunctional extension socket, which comprises an upper housing, a lower housing, a rotary plug device, a control device and a plurality of plug devices, wherein the rotary plug device, the plurality of plug devices and the control device are all fixedly mounted between the upper housing and the lower housing, the rotary plug device, the plurality of plug devices and the control device are all mounted on the bottom surface of a mounting groove of the lower housing, a switch of the control device upwardly passes through the top of the upper housing and extends to the upper housing, the rotary plug device is rotatably connected with the lower housing, the rotary plug device and the plurality of plug devices are electrically connected with the control device, a power cord of the plurality of plug devices passes through a side wall of the upper housing and the lower housing after being combined, the upper housing is provided with at least five connection bases, and the top opening of each connecting base is communicated with the top of the upper shell.

Preferably, the rotary splicing device comprises a rotary base, a USB splicing hole and a protective cover, the USB splicing hole is electrically connected with the control device, the rotary base is rotatably connected with the lower shell, the USB splicing hole is fixedly installed at the bottom of the installation cavity of the rotary base, the protective cover is covered on the rotary base, and the protective cover is provided with the splicing hole corresponding to the USB splicing hole.

Preferably, the lower casing is internally provided with a mounting rack, and the rotating base is rotatably connected with the mounting rack.

Preferably, the multi-position plug device comprises a fire wire copper sheet, a zero line copper sheet, a ground wire copper sheet and a plurality of protection devices, the protection devices are fixedly installed at the bottom of the connecting base, a fire wire jack and a zero line jack are respectively arranged on the fire wire copper sheet and the zero line copper sheet, two ends of each protection device are respectively located on the fire wire jack and the zero line jack, a fire wire avoidance vacancy on each protection device is opposite to the fire wire jack, a zero line avoidance vacancy on each protection device is opposite to the zero line jack, the inclination angles of the protection devices are the same, a ground wire connecting piece is arranged on each protection device, and each ground wire connecting piece is fixedly connected with the ground wire copper sheet.

Preferably, the protector includes fixed frame, movable baffle and reset spring, fixed frame fixed mounting in connect the bottom of base, just the zero line keep away the vacancy with the live wire keeps away the vacancy and all is located on the fixed frame, the ground wire connecting piece buckle in connect the bottom of base, the both ends of ground wire connecting piece are all passed the side part of connecting the base is located connect the pedestal mounting chamber in, just the ground wire connecting piece is located fixed frame with connect between the base, movable baffle slidable mounting in fixed frame, reset spring's both ends respectively with movable baffle with fixed frame butt.

Preferably, be provided with on the movable baffle and keep away hole, first slope arch and second slope arch, just keep away the hole and be located movable baffle's centre, first slope arch with the second slope arch all set up in movable baffle's upper surface, just first slope arch closes on one section edge of movable baffle sets up, the second slope arch closes on movable baffle's the other end sets up, just the bellied inclined plane of second slope with keep away the hole edge connection, first slope arch with the bellied inclined plane of second slope is towards same direction.

Preferably, the bottom of connecting the base is provided with the mounting panel, just the vertical setting of mounting panel, the mounting panel closes on the edge setting of connecting the base, first fixed slot and second fixed slot have been seted up to the bottom of mounting panel, the live wire copper sheet place in the first fixed slot, the zero line copper sheet place in the second fixed slot.

Preferably, the ground wire connecting piece includes a positioning plate, a first locating part and a second locating part, one end of the positioning plate with ground wire copper sheet fixed connection, the first locating part with the second locating part respectively fixed mounting in the both ends of positioning plate, just first time locating part with the second locating part all upwards bends and extends, just the top of first locating part with the second locating part sets up in the opposite direction back-off bending, the back-off part of first locating part with the second locating part passes connect the base side.

Preferably, the control device is provided with two indicator lights, and the two indicator lights are respectively connected with the rotary plug-in device and the multi-position plug-in device.

Preferably, the connection between the planes of the upper shell and the lower shell is smooth transition connection.

The embodiment of the utility model provides an above-mentioned one or more technical scheme in the multi-functional row inserts have one of following technological effect at least:

the utility model is composed of an upper shell, a lower shell, a rotary plug device, a control device and a multi-position plug device, each part needs to be made into a specific shape and size during production, mounting grooves are arranged on the upper shell and the lower shell, and the two mounting grooves are combined to form a mounting cavity after the upper shell and the lower shell are combined, the top of the upper shell is also provided with at least five grooves with circular openings, a switch perforation is arranged at the position near one end, a circular through hole is arranged at the position near the other end, the circular through hole is convenient to be mutually matched with the rotary plug device, the rotary plug device can rotate at any angle in the through hole, thereby the plug device can be plugged and charged from any position with different adaptation, the multi-position plug device is fixedly arranged in the mounting groove of the lower shell, and the multi-position plug device is provided with a charging connecting position corresponding to the bottom of each groove, each plug passes to be connected between recess and the many grafting devices of electricity, is provided with spacing on the inside wall of recess simultaneously, and spacing joint is on the lateral wall of plug, prevents that the cross-section from appearing rotating not hard up to influence daily practicality for circular shape plug after installing in the recess, realizes through foretell setting that multi-functional row inserts and can both satisfy fixed angle and can satisfy the ability of filling of arbitrary angle selection dress simultaneously and insert the electricity after the installation is accomplished.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is an exploded view of a multifunctional extension socket provided by an embodiment of the present invention.

Fig. 2 is a partially enlarged view of a in fig. 1.

Fig. 3 is an effect diagram of the protection device and the ground wire connecting piece of the multifunctional extension socket provided by the embodiment of the present invention.

Fig. 4 is an effect diagram of the ground wire connecting piece of the multifunctional extension socket provided by the embodiment of the present invention.

Fig. 5 is an effect diagram of the upper housing of the multifunctional extension socket provided by the embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

10-upper shell 11-connecting base 20-lower shell

21-mounting frame 30-rotary plug device 31-rotary base

32-USB jack 33-protective cover 40-control device

41-indicator light 50-multi-position plug-in device 51-live wire copper sheet

52-zero line copper sheet 53-ground wire copper sheet 54-protection device

55-ground wire connecting piece 111-mounting plate 541-fixing frame

542-moving baffle 543-return spring 551-positioning plate

552 first stop 553 second stop 5421 clearance hole

5422-first inclined projection 5423-second inclined projection.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in fig. 1-5, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functionality throughout. The embodiments described below by referring to the drawings are exemplary and intended to explain the embodiments of the present invention and are not to be construed as limiting the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In an embodiment of the present invention, as shown in fig. 1-2 and 5, a multifunctional power strip is provided, which includes an upper casing 10, a lower casing 20, a rotary inserting device 30, a control device 40 and a plurality of inserting devices 50, wherein a plurality of mounting posts arranged in order are disposed at the bottom of a mounting groove of the lower casing 20, and a fixing hole is disposed at the top of each mounting post, penetrates through the mounting post and extends to the bottom plane of the lower casing 20, a screw penetrates from the bottom of the lower casing 20 and is fixedly connected to the upper casing 10, the rotary inserting device 30, the plurality of inserting devices 50 and the control device 40 are fixedly mounted between the upper casing 10 and the lower casing 20, the rotary inserting device 30, the so-called inserting device and the control device 40 are mounted in a mounting cavity formed by combining the upper casing 10 and the lower casing 20, and the rotary inserting device 30, the rotary inserting device 30 and the lower casing 20 are mounted through the upper casing 10 and the lower casing 20, So-called grafting device and controlling means 40 play certain guard action, and rotatory grafting device 30, many grafting devices 50 and controlling means 40 all install in the mounting groove bottom surface of casing 20 down, install rotatory grafting device 30, many grafting devices 50 and controlling means 40 in the bottom surface of mounting groove, can effectually reduce row and insert holistic volume size, the switch of controlling means 40 upwards passes the top of last casing 10 extends to go up casing 10, the switch of controlling means 40 passes the top of last casing 10 and extends to the casing 10 top, the circuit switch-on condition of arranging and inserting of operation control is convenient for carry out, rotatory grafting device 30 is connected with rotating between the casing 20 down, the rotation between rotatory grafting device 30 and the casing 20 is connected, realizes the rotation that can carry out arbitrary angle in the charging process, rotatory grafting device 30 with many grafting device 50 all with electric connection between controlling means 40, and the power cord of the multi-position plugging device 50 passes through the side wall of the combined upper shell 10 and the lower shell 20, at least five connection bases 11 are arranged on the upper shell 10, the top openings of the connection bases 11 are communicated with the top of the upper shell 10, the connection bases 11 are correspondingly connected with the plugging positions on the multi-position plugging device 50 one by one, the installation position of the plug and the angle orientation during installation are determined through the arrangement of the connection bases 11, and the wiring are facilitated.

The utility model discloses a multi-functional row inserts by last casing 10, lower casing 20, rotatory grafting device 30, controlling means 40 and many grafting devices 50 equipment, make into specific shape size, go up casing 10 and lower casing 20 and all seted up the mounting groove, and go up casing 10 and lower casing 20 combination back two mounting groove combination formation installation cavity, go up the casing 10 top and still be provided with five at least openings and be circular recess, the position that closes on one end simultaneously is provided with the switch perforation, the position that closes on the other end is provided with circular through-hole, circular through-hole that sets up is convenient for mutually adapt with rotatory grafting device 30, realize that rotatory grafting device 30 can realize the rotation of arbitrary angle in this through-hole, thereby the different arbitrary position of adaptation is inserted and is charged, many grafting devices 50 are fixed mounting in the mounting groove of casing 20 down, and be provided with the charging connection position relative with each recess bottom on many grafting devices 50, each plug passes to be connected between recess and the many grafting device 50 of electricity, is provided with spacing on the inside wall of recess simultaneously, and spacing joint is on the lateral wall of plug, prevents that the cross-section from appearing rotating not hard up to influence daily practicality for the circular shape plug after installing in the recess, realizes through foretell setting that multi-functional row inserts and can both satisfy fixed angle and also can satisfy the ability of filling of arbitrary angle selection dress simultaneously and insert the electricity after the installation is accomplished.

In another embodiment of the present invention, as shown in fig. 1-2, the rotating plug device 30 includes a rotating base 31, a USB plug hole 32 and a protective cover 33, the USB plug hole 32 and the electric connection between the control device 40, the rotating base 31 and the lower casing 20 are connected by rotation, the USB plug hole 32 is fixedly installed at the bottom of the installation cavity of the rotating base 31, the protective cover 33 covers the rotating base 31, and the protective cover 33 is provided with the plug hole corresponding to the USB plug hole 32, the USB plug hole 32 is disposed on the rotating base 31, when the USB plug is inserted into the plug hole, the user changes the direction to arrange the angle of the connection hole above the plug at any time, so that the change of the position of the adaptive user does not cause the winding of the charging wire.

In another embodiment of the present invention, as shown in fig. 1-2, a mounting frame 21 is disposed in the lower housing 20, the rotating base 31 is rotatably connected to the mounting frame 21, the mounting frame 21 is disposed in the lower housing 20, and the height of the rotating plug-in device 30 is raised by the mounting frame 21, so that the rotating plug-in device 30 is closer to the top surface of the upper housing 10 for plug insertion.

In another embodiment of the present invention, as shown in fig. 1-2, the multi-position plugging device 50 includes a live wire copper sheet 51, a zero wire copper sheet 52, a ground wire copper sheet 53 and a plurality of protection devices 54, the protection devices 54 are fixedly mounted on the bottom of the connection base 11, the live wire copper sheet 51 and the zero wire copper sheet 52 are respectively provided with a live wire jack and a zero wire jack, the live wire jack and the zero wire jack are respectively used for plugging and connecting a live wire pin and a zero wire pin of a plug, two ends of each protection device 54 are respectively located on the live wire jack and the zero wire jack, a live wire space on the protection device 54 is opposite to the live wire jack, a zero wire space on the protection device 54 is opposite to the zero wire jack, and an inclination angle of each protection device 54 is the same, each protection device 54 is provided with a ground wire connecting piece 55, each of the ground wire connectors 55 is fixedly connected to the ground wire copper sheet 53, and protects the live wire jack and the neutral wire jack to a certain extent by the protection of the protector 54, and when not in use, the protector 54 shields the live wire jack and the neutral wire jack, and places accumulated dust or water drops to cause internal rusting and short circuit.

In another embodiment of the present invention, as shown in fig. 1 to 3, the protection device 54 includes a fixing frame 541, a movable baffle 542 and a return spring 543, the fixing frame 541 is fixedly installed at the bottom of the connection base 11, the zero line avoidance space and the fire line avoidance space are both located on the fixing frame 541, the ground wire connecting piece 55 is fastened to the bottom of the connection base 11, both ends of the ground wire connecting piece 55 penetrate through the side portion of the connection base 11 and are located in the installation cavity of the connection base 11, the ground wire connecting piece 55 is located between the fixing frame 541 and the connection base 11, the movable baffle 542 is slidably installed in the fixing frame 541, both ends of the return spring 543 are respectively abutted against the movable baffle 542 and the fixing frame 541, the return spring 543 above the protection device 54 realizes that the protection device 54 can perform a simple self-recovery action, when the plug is inserted, the movable baffle 542 moves under the extrusion of the pins, the live wire jack and the zero wire jack positioned below are exposed, the reset spring 543 is extruded at the same time, and when the plug is pulled out, the reset spring 543 pushes the movable baffle 542 to return to the original position.

In another embodiment of the present invention, as shown in fig. 1 to 3, the movable baffle 542 is provided with a clearance hole 5421, a first inclined protrusion 5422 and a second inclined protrusion 5423, the clearance hole 5421 is located in the middle of the movable baffle 542, the first inclined protrusion 5422 and the second inclined protrusion 5423 are both disposed on the upper surface of the movable baffle 542, the first inclined protrusion 5422 is disposed adjacent to a section of edge of the movable baffle 542, the second inclined protrusion 5423 is disposed adjacent to the other end of the movable baffle 542, the inclined surface of the second inclined protrusion 5423 is connected to the edge of the clearance hole 5421, the inclined surfaces of the first inclined protrusion 5422 and the second inclined protrusion 5423 face the same direction, the clearance hole 5421 is in the shape of a long strip capsule, the first inclined protrusion 5422 and the second inclined protrusion 5423 are disposed, two pins of the plug respectively abut on the first inclined protrusion 5422 and the second inclined protrusion 5423, by pressing the first inclined protrusion 5422 and the second inclined protrusion 5423, the first inclined protrusion 5422 and the second inclined protrusion 5423 are moved in position under the setting of the inclined surface, thereby driving the entire movable shutter 542 to move in position, so that the live wire insertion hole and the neutral wire insertion hole are respectively exposed at positions outside the clearance hole 5421 and the movable shutter 542, and then the pins are inserted to complete the connection.

In another embodiment of the present invention, as shown in fig. 5, the bottom of the base 11 is provided with a mounting plate 111, and the mounting plate 111 is vertically disposed, the mounting plate 111 is close to the edge of the base 11, a first fixing groove and a second fixing groove have been opened at the bottom of the mounting plate 111, the live wire copper sheet 51 is disposed in the first fixing groove, the zero wire copper sheet 52 is disposed in the second fixing groove, the live wire copper sheet 51 and the zero wire copper sheet 52 are respectively fixedly disposed in the first fixing groove and the second fixing groove, and the position of the live wire copper sheet 51 and the zero wire copper sheet 52 are planned through the disposition of the mounting plates 111.

In another embodiment of the present invention, as shown in fig. 1 to 4, the ground wire connector 55 includes a positioning plate 551, a first limiting member 552 and a second limiting member 553, one end of the positioning plate 551 is fixedly connected to the ground wire copper sheet 53, the first limiting member 552 and the second limiting member 553 are respectively and fixedly installed at two ends of the positioning plate 551, the first limiting member and the second limiting member 553 both extend in an upward bending manner, the top ends of the first limiting member 552 and the second limiting member 553 are oppositely and reversely bent, the reverse part of the first limiting member 552 and the second limiting member 553 passes through the side of the connecting base 11, an installation groove is provided at the bottom of the connecting base 11, the positioning plate 551 is placed in the installation groove, two ends of the installation groove extend to the side of the connecting base 11, a limiting hole is provided at the side of the connecting base 11, and the limiting hole is located in the mounting groove, and the reverse-buckled parts of the first limiting piece 552 and the second limiting piece 553 penetrate into the connection base 11 through the limiting hole to be connected with a socket inserted in the connection base 11.

In another embodiment of the present invention, as shown in fig. 1, two indicator lamps 41 are provided on the control device 40, two of the indicator lamps 41 are respectively connected to the rotating plug-in device 30 and the multi-position plug-in device 50, two of the indicator lamps 41 are separately provided, and one of the indicator lamps 41 is controlled by a switch on the control device 40, and the circuit connection condition of the rotating plug-in device 30 and the multi-position plug-in device 50 can be more clearly distinguished by the respective arrangement of the two indicator lamps 41.

In another embodiment of the present invention, as shown in fig. 1 and 5, the joints of the upper shell 10 and the lower shell 20 at the respective planes are connected in a smooth transition manner, and the joints between the upper shell 10 and the lower shell 20 at the respective planes are connected in a smooth transition manner, so that the user can be prevented from being scratched by the sharp joints.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a multi-functional row inserts which characterized in that: comprises an upper shell, a lower shell, a rotary splicing device, a control device and a multi-position splicing device, wherein the rotary splicing device, the multi-position splicing device and the control device are all fixedly arranged between the upper shell and the lower shell, and the rotary inserting device, the multi-position inserting device and the control device are all arranged on the bottom surface of the mounting groove of the lower shell, the switch of the control device upwards passes through the top of the upper shell and extends to the upper shell, the rotary plug-in device is rotationally connected with the lower shell, the rotary inserting device and the multi-position inserting device are electrically connected with the control device, and the power cord of the multi-position plug device passes through the side wall of the combined upper shell and the lower shell, the upper shell is provided with at least five connecting bases, and the top openings of the connecting bases are communicated with the top of the upper shell.

2. The multi-functional extension socket of claim 1, wherein: the rotary splicing device comprises a rotary base, a USB splicing hole and a protective cover, wherein the USB splicing hole is electrically connected with the control device, the rotary base is rotatably connected with the lower shell, the USB splicing hole is fixedly arranged at the bottom of the mounting cavity of the rotary base, the protective cover is covered on the rotary base, and the protective cover is provided with the splicing hole corresponding to the USB splicing hole.

3. The multi-functional extension socket of claim 2, wherein: the internal mounting bracket that is provided with of inferior valve, rotating base with rotate between the mounting bracket and be connected.

4. The multi-functional extension socket of claim 1, wherein: the multi-position plug device comprises a live wire copper sheet, a zero line copper sheet, a ground wire copper sheet and a plurality of protection devices, wherein the protection devices are fixedly installed at the bottom of the connecting base, a live wire jack and a zero line jack are respectively arranged on the live wire copper sheet and the zero line copper sheet, two ends of each protection device are respectively located on the live wire jack and the zero line jack, a live wire avoiding vacancy on each protection device is opposite to the live wire jack, a zero line avoiding vacancy on each protection device is opposite to the zero line jack, the inclination angles of the protection devices are the same, a ground wire connecting piece is arranged on each protection device, and each ground wire connecting piece is fixedly connected with the ground wire copper sheet.

5. The multi-functional extension socket of claim 4, wherein: the protector includes fixed frame, movable baffle and reset spring, fixed frame fixed mounting in connect the bottom of base, just the zero line keep away the vacancy with the live wire keeps away the vacancy and all is located on the fixed frame, ground wire connecting piece buckle in connect the bottom of base, the both ends of ground wire connecting piece are all passed the side part of connecting the base is located connect in the base installation cavity, just the ground wire connecting piece is located fixed frame with connect between the base, movable baffle slidable mounting in fixed frame, reset spring's both ends respectively with movable baffle with fixed frame butt.

6. The multi-functional extension socket of claim 5, wherein: it is protruding to be provided with clearance hole, first slope on the movable baffle and the second slope, just it is located to keep away the clearance hole movable baffle's centre, first slope protruding with the second slope protruding all set up in movable baffle's upper surface, just first slope is protruding to be close to one section edge of movable baffle sets up, the second slope is protruding to be close on movable baffle's the other end setting, just the bellied inclined plane of second slope with keep away the hole edge connection, first slope protruding with the bellied inclined plane of second slope is towards same direction.

7. The multi-functional extension socket of claim 4, wherein: the bottom of connecting the base is provided with the mounting panel, just the vertical setting of mounting panel, the mounting panel closes on the edge setting of connecting the base, first fixed slot and second fixed slot have been seted up to the bottom of mounting panel, the live wire copper sheet place in the first fixed slot, the zero line copper sheet place in the second fixed slot.

8. The multi-functional extension socket of claim 4, wherein: the ground wire connecting piece comprises a positioning plate, a first limiting part and a second limiting part, one end of the positioning plate is fixedly connected with a ground wire copper sheet, the first limiting part and the second limiting part are respectively and fixedly installed at two ends of the positioning plate, the first limiting part and the second limiting part are bent upwards and extend, the top ends of the first limiting part and the second limiting part are oppositely and reversely buckled and bent, and the reverse buckling part of the first limiting part and the second limiting part penetrates through the side face of the connecting base.

9. The multi-functional extension socket of claim 1, wherein: the control device is provided with two indicator lights which are respectively connected with the rotary splicing device and the multi-position splicing device.

10. The multi-functional extension socket of claim 1, wherein: the connection parts of the planes of the upper shell and the lower shell are connected in a smooth transition mode.