CN213340970U

CN213340970U - Leakage protection socket

Info

Publication number: CN213340970U
Application number: CN202022208610.4U
Authority: CN
Inventors: 钱加灿
Original assignee: Yuyao Jiarong Electronic Appliance Co Ltd
Current assignee: Yuyao Jiarong Electronic Appliance Co Ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-06-01
Anticipated expiration: 2030-09-30

Abstract

The utility model discloses a leakage protection socket relates to electrical equipment protection technical field, include: the socket comprises a socket shell, a leakage protector and an electric connection part, wherein the leakage protector and the electric connection part are arranged in the socket shell; the socket shell also comprises a support frame for fixedly mounting the electric connection part, a base for fixedly mounting the leakage protector and a power supply wire holder for connecting an external power supply; one end of the electric connection part is provided with a wiring terminal, the other end of the electric connection part is provided with at least one plugging end, and the leakage protector can control the disconnection and the connection of a circuit between the power supply wiring seat and the wiring terminal; the utility model effectively solves the safety problem existing in the prior socket by arranging the leakage protector in the socket; the stable and effective state display of the leakage protection socket is ensured through the arrangement of the indicating devices of the mechanical structure and the electrical structure; further, still through the setting of extension wiring end, improved greatly the utility model discloses earth leakage protection socket's application scope.

Description

Leakage protection socket

Technical Field

The utility model belongs to the technical field of the electrical equipment protection technique and specifically relates to a leakage protection socket.

Background

The socket is widely applied in daily life, more abnormal conditions are easy to appear, the socket leakage condition often occurs, and the leakage protector has the main function of timely disconnecting the main line when the equipment has leakage fault or needs to protect the person who has fatal danger from electric shock, so that the socket is widely applied; to the problem, the utility model discloses in, designed a leakage protection socket, combined leakage protection ware structure and socket structure, adopted the coil to last power supply actuation release mechanism simultaneously, when meeting power interruption, contact failure, when lacking mutually, this mechanical structure actuation keeps the return circuit because of losing unable production magnetic force attraction of voltage from release mechanism, leads to the disconnection of release circuit, thereby closed contact disconnection forms active protection, stops the potential safety hazard.

SUMMERY OF THE UTILITY MODEL

First, technical problem to be solved

The utility model discloses to the above-mentioned defect that prior art exists, provide a leakage protection socket specially, solve the safety problem that exists in the current socket, leakage protection problem when still having solved a plurality of sockets and connecting simultaneously.

Second, technical scheme

In order to solve the above technical problem, the utility model provides an earth leakage protection socket, include: the socket comprises a socket shell, a leakage protector and an electric connection part, wherein the leakage protector and the electric connection part are arranged in the socket shell;

the socket shell also comprises a support frame for fixedly mounting the electric connection part, a base for fixedly mounting the leakage protector and a power supply wire holder for connecting an external power supply;

one end of the electric connection part is provided with a wiring end, the other end of the electric connection part is provided with at least one plug end, the upper part of the socket shell is provided with a socket hole corresponding to the plug end, and the leakage protector can control the disconnection and the communication of a circuit between the power supply wiring seat and the wiring end.

Wherein, earth-leakage protector includes: the protector device is arranged on the upper part of the base and controls the opening and closing of the elastic sheet and the wiring terminal;

the protector device comprises a communication maintaining device, a communication device and a locking device, wherein the locking device is arranged between the communication maintaining device and the communication device;

the locking device comprises a spring plate pressing block and a locking deflector rod, the locking deflector rod is movably hinged with a second support arranged on the communicating device through a second pin shaft, and the spring plate pressing block is movably hinged with a first support arranged in the middle of the base through a first pin shaft; the locking deflector rod is provided with a lock catch, a movable pressing plate and a hasp slideway;

the spring plate pressing block comprises a pressing block upper part and a pressing block lower part, a hasp and a vertical fork groove are arranged on the pressing block upper part, a pressing rod is arranged on the pressing block lower part, the pressing block upper part is hinged with the pressing block lower part through a first pin shaft, a pressing block spring in a compression state is arranged between the pressing block upper part and the pressing block lower part, when the pressing rod and the spring plate are in a butt joint state, the elastic force of the pressing block spring can enable the pressing rod to keep a stable acting force on the spring plate;

the communicating device is provided with a second iron core which extends transversely and is matched with the vertical fork groove in a clamping manner; the communication maintaining device comprises a first iron core which is longitudinally arranged and can be used for being matched with the movable pressing plate in a magnetic adsorption way;

when the communication maintaining device is electrified, the second iron core drives the elastic sheet pressing block to rotate through the vertical fork groove, so that the pressing rod positioned at the bottom of the elastic sheet pressing block presses the elastic sheet downwards, the hasp slides upwards along the hasp slide way, the movable pressing plate continuously moves downwards in the process that the hasp slides to be abutted against the hasp, and the movable pressing plate is adsorbed and fixed through the first iron core; the communication maintaining device is used for fixing the position of the locking deflector rod, so that the elastic sheet pressing block keeps a pressing state, and the elastic sheet and the wiring end keep a connection state, thereby realizing circuit communication;

when the communication maintaining device is powered off, the communication maintaining device stops working, the locking deflector rod is released, and the lock catch and the hasp are tripped, so that the elastic sheet is disconnected with the wiring terminal, and further the circuit is disconnected.

the spring plate pressing block is provided with a hasp, a vertical fork groove and a pressing rod, and the hasp is used for being matched and abutted with the hasp;

The hinge joint of the upper part of the pressing block and the lower part of the pressing block is provided with a hinge seat, the first pin shaft penetrates through the hinge seat, the hinge seat is further provided with a limit stop, and the limit stop is used for controlling an opening angle between the upper part of the pressing block and the lower part of the pressing block when the first pin shaft rotates by taking the first pin shaft as an axis.

Wherein, still be equipped with the clamp plate pinhole on the locking driving lever, the activity clamp plate passes through the round pin axle and is articulated with the clamp plate pinhole cooperation.

The elastic pieces comprise a first elastic piece and a second elastic piece, and the first elastic piece and the second elastic piece are fixed through elastic piece clamping grooves formed in two sides of the communication maintaining device;

wherein, be equipped with the electric contact point of connecting on the wiring end, first shell fragment and second shell fragment tip all are equipped with the shell fragment contact corresponding with the electric contact point of connecting, and when the depression bar pushed down the shell fragment, the shell fragment contact and the butt of electric contact point of connecting.

The socket shell is further provided with a reset button and a test button, and the bottoms of the reset button and the test button are respectively provided with corresponding micro switches.

The socket shell further comprises an extension wire holder, and the extension wire holder is used for being electrically connected with another socket or electric equipment.

The extended wiring base is provided with an extended wiring terminal, and the leakage protector can control the disconnection and the communication of a circuit between the power supply wiring base and the extended wiring terminal.

The extension wiring terminal is provided with an extension wiring contact, the extension wiring contact and the electric connection contact are arranged in parallel, and when the pressing rod presses down the elastic sheet, the elastic sheet contact can be abutted to the electric connection contact and the extension wiring contact simultaneously.

Wherein, be equipped with first instruction observation part on the socket casing, be equipped with the instruction piece on the clamp plate pinhole, first instruction observation part is corresponding with instruction piece position, and when the intercommunication maintaining device circular telegram, the accessible is first to be instructed observation part and is observed and instruct the piece.

Wherein, be equipped with the second on the socket casing and instruct observation part, be equipped with the pilot lamp on the protector device, when intercommunication maintaining device circular telegram, the accessible second instructs observation part to observe that the pilot lamp is luminous.

Wherein, earth-leakage protector still includes the mutual-inductor device, and the mutual-inductor device includes the mutual-inductor casing, sets up at the inside mutual inductance coil of mutual-inductor casing, wears to establish on the mutual-inductor casing and passes the stereoplasm electricity connecting wire of mutual-inductor, and stereoplasm electricity connecting wire one end is connected with power connection terminal, and the stereoplasm electricity connecting wire other end is connected with the shell fragment.

Wherein, the hard electric connecting wire is a metal sheet in a bending state.

The communication maintaining device also comprises a maintaining coil, the maintaining coil is fixed in the communication maintaining device, and the first iron core is vertically fixed in an inner cavity of the maintaining coil; first iron core one end and intercommunication holding device bottom fixed connection, the first iron core other end is used for adsorbing movable clamp plate.

Wherein, the intercommunication device still includes intercommunication coil and intercommunication spring, and the intercommunication coil is fixed inside the intercommunication device, and intercommunication spring and second iron core level set up at the intercommunication coil inner chamber.

Third, beneficial effect

Compared with the prior art, the leakage protection socket provided by the utility model effectively solves the safety problem existing in the existing socket by arranging the leakage protector in the socket,

meanwhile, the upper part of the pressing block and the lower part of the pressing block are combined in a pressing block spring connection mode to form the elastic piece pressing block, so that the elastic piece pressing block is not only carried out by a fixed limiting mechanical structure in the process of pressing the elastic piece, and a pressing rod at the lower part of the pressing block can apply stable pressing force to the elastic piece by adopting the pressing block spring, so that the pressing force of the pressing rod at the lower part of the pressing block to the elastic piece is ensured, and the internal electric connection of the leakage protection socket is stable;

the stable and effective state display of the leakage protection socket is ensured through the arrangement of the indicating devices of the mechanical structure and the electrical structure;

further, still through the setting of extension wiring end, improved greatly the utility model discloses earth leakage protection socket's application scope.

Drawings

Fig. 1 is a perspective view of the earth leakage protection socket of the present invention;

fig. 2 is an internal structure diagram of the earth leakage protection socket of the present invention in the on state;

fig. 3 is an internal structure diagram of the leakage protection socket of the present invention in an off state;

fig. 4 is a structural diagram of an electrical connection portion and a spring piece of the leakage protection socket of the present invention;

fig. 5 is a structural view of the protector device of the earth leakage protection socket of the present invention;

fig. 6 is a structural diagram 1 of a locking device of the leakage protection socket of the present invention;

fig. 7 is a structural diagram 2 of a locking device of the leakage protection socket of the present invention;

fig. 8 is a structure diagram of a locking shift lever of the earth leakage protection socket of the present invention;

fig. 9 is a structural diagram 1 of the spring plate pressing block of the leakage protection socket of the present invention;

fig. 10 is a structural diagram 2 of the spring plate pressing block of the leakage protection socket of the present invention;

fig. 11 is a structural diagram of a communication device of the earth leakage protection socket of the present invention;

fig. 12 is a structural view of a communication maintaining device of the earth leakage protection socket of the present invention;

in the figure: 1 is a socket shell; 2 is a protector device; 3 is an electric connection part; 4 is a reset button; 5 is a spring plate; 6 is a communication maintaining device; 7 is a communicating device; 8 is a locking device; 8a is a spring plate pressing block; 8b is a locking deflector rod; 8c is the upper part of the pressing block; 8d is the lower part of the pressing block; 9 is a pressing block spring; 10 is a test button; 11 is a protruding sheet; 12 is a limit stop block; 13 is a boss; 14 is a clamping groove; 16 is an electrical connection contact; 21 is a first pin shaft; 22 is a pressure lever; 23 is a vertical fork groove; 24 is a hasp; 31 is a second pin; 33 is a lock catch; 34 is a movable pressure plate; 36 is a hasp slideway; 42 is an indication block; 43 is a first support; 51 is a spring contact; 52 is a first elastic sheet; 53 is a second elastic sheet; 61 is a sustain coil; 62 is a first iron core; 63 is a press plate pin hole; a second support 64; 71 is a communicating coil; 72 is a second iron core; 73 is a communicating spring; 81 is a supporting frame; 82 is a base; 83 is a power supply wire holder; 84 is an extension wire holder; 85 is a terminal; 86 is a plug end; an extended terminal 87; 88 is a microswitch; 89 is a first indication observation part; reference numeral 90 denotes a second indication observation unit; 91 is a socket hole; 92 is a wiring contact; 93 is a transformer shell; 94 are rigid electrical connection wires.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Example 1:

the utility model discloses a leakage protection socket, as shown in fig. 1-5, include: a socket housing 1, a leakage protector and an electrical connection portion 3 provided in the socket housing 1;

the socket housing 1 further comprises a support frame 81 for fixedly mounting the electric connection part 3, a base 82 for fixedly mounting the earth leakage protector, and a power supply wire holder 83 for connecting an external power supply;

the one end of the electric connection part 3 is equipped with the terminal 85, the other end of the electric connection part 3 is equipped with at least one plug-in terminal 86, specifically, the electric connection part 3 is a conductive metal sheet with bending structure, and fixed joint through the support frame 81, the support frame 81 is arranged on the upper portion of the circuit board, the plug-in terminal 86 is used for matching with the plug pins of various electric appliances in a plug-in manner, therefore, the plug-in terminal 86 has the structural design of clamping function, in this embodiment, the plug-in terminal 86 includes a three-pin socket and a two-pin socket, the upper portion of the socket housing 1 is equipped with a socket hole 91 corresponding to the plug-in terminal 86, and the disconnection and connection of the circuit between the.

As shown in fig. 6, the earth leakage protector includes: the protector device 2 is arranged at the upper part of the base 82, and the protector device 2 controls the opening and closing of the elastic sheet 5 and the wiring terminal 85;

the protector device 2 includes a communication maintaining device 6, a communication device 7, and a locking device 8, the locking device 8 being provided between the communication maintaining device 6 and the communication device 7;

the locking device 8 comprises a spring plate pressing block 8a and a locking shifting rod 8b, the locking shifting rod 8b is movably hinged with a second support 64 arranged on the communicating device 7 through a second pin shaft 31, and the spring plate pressing block 8a is movably hinged with a first support 43 arranged in the middle of the base 82 through a first pin shaft 21; the locking deflector rod 8b is provided with a lock catch 33, a movable pressing plate 34 and a hasp slideway 36; the spring plate pressing block 8a is provided with a hasp 24, a vertical fork groove 23 and a pressure lever 22, and the hasp 24 is used for being matched and abutted with the lock catch 33; the positions of the first support 43 and the second support 64 can be adjusted according to different requirements of customers;

the communicating device 7 is provided with a second iron core 72 which extends transversely, and the second iron core 72 is clamped and matched with the vertical fork groove 23; the communication maintaining device 6 comprises a first iron core 62 which is longitudinally arranged, and the first iron core 62 can be used for being matched with the movable pressing plate 34 in a magnetic adsorption way;

when the hasp 24 slides anticlockwise along the hasp slideway 36, the locking shift lever 8b can continuously rotate clockwise, so that the conditions that the movable pressing plate 34 stops or jumps and the like in the anticlockwise sliding process of the hasp 24 along the hasp slideway 36 are avoided, and the connection failure of the leakage protector is caused by the fact that the speed of the movable pressing plate 34 and the first iron core 62 for adsorption and fixation is influenced due to the stop or the jump, and the speed is too low;

when the communication maintaining device 6 is powered on, the second iron core 72 drives the spring plate pressing block 8a to rotate through the vertical fork groove 23, so that the pressing rod 22 at the bottom of the spring plate pressing block 8a presses the spring plate 5 downwards, meanwhile, the hasp 24 slides upwards along the hasp slide way 36, and in the process that the hasp 24 slides to be abutted against the hasp 33, the movable pressing plate 34 continuously moves downwards, and the movable pressing plate 34 is adsorbed and fixed through the first iron core 62; the communication maintaining device 6 is used for fixing the position of the locking deflector rod 8b, so that the elastic sheet pressing block 8a keeps a pressing state, and the elastic sheet 5 and the wiring end 85 keep a connection state, thereby realizing circuit communication;

when the communication maintaining device 6 is powered off, the communication maintaining device 6 stops working, the locking deflector rod 8b is released, and the lock catch 33 and the hasp 24 are released, so that the elastic sheet 5 is disconnected with the wiring terminal 85, and the circuit is further disconnected; the locking deflector rod 8b is also provided with a pressure plate pin hole 63, and the movable pressure plate 34 is matched and hinged with the pressure plate pin hole 63 through a pin shaft.

The elastic sheet 5 comprises a first elastic sheet 52 and a second elastic sheet 53, and the first elastic sheet 52 and the second elastic sheet 53 are fixed through elastic sheet clamping grooves arranged at two sides of the communication maintaining device 6; the terminal 85 is provided with an electric connection contact 16, the end parts of the first elastic sheet 52 and the second elastic sheet 53 are provided with elastic sheet contacts 51 corresponding to the electric connection contact 16, and when the pressing rod 22 presses the elastic sheet 5 down, the elastic sheet contacts 51 are abutted against the electric connection contact 16.

As shown in fig. 1, the socket housing 1 is further provided with a reset button 4 and a test button 10, and the bottoms of the reset button 4 and the test button 10 are respectively provided with a corresponding micro switch 88.

Be equipped with first instruction observation portion 89 on socket shell 1, be equipped with on the clamp plate pinhole 63 and instruct piece 42, first instruction observation portion 89 is corresponding with instruction piece 42 position, when intercommunication maintaining device 6 circular telegram, the accessible is first to instruct observation portion 89 to observe and instruct piece 42, through the setting of first instruction observation portion 89 with instruct piece 42, lets the more audio-visual state of seeing this embodiment earth leakage protection socket of user to mechanical structure's indicating device is more reliable and more stable.

As shown in fig. 11, the communicating device 7 further includes a communicating coil 71 and a communicating spring 73, the communicating coil 71 is fixed inside the communicating device 7, the communicating spring 73 and the second iron core 72 are sequentially and horizontally arranged in an inner cavity of the communicating coil 71, when the power supply is turned off, the elastic force of the elastic piece 5 enables the elastic piece pressing block 8a to rotate clockwise, and further the pressing rod 22 is lifted and the elastic piece 5 is released; when the communicating coil 71 is energized, the second iron core 72 is clamped with the vertical fork groove 23 to drive the spring plate pressing block 8a to rotate anticlockwise.

As shown in fig. 12, the communication maintaining device 6 further includes a maintaining coil 61, the maintaining coil 61 is fixed inside the communication maintaining device 6, and the first iron core 62 is vertically arranged in the inner cavity of the maintaining coil 61; one end of the first iron core 62 is fixedly connected with the bottom of the communication maintaining device 6, and the other end of the first iron core 62 is used for adsorbing the movable pressing plate 34; when the communication maintaining device 6 is electrified, the maintaining coil 61 is electrified, the movable pressing plate 34 is adsorbed by the first iron core 62, the hasp 24 is kept in a contact state with the lock catch 33, and the earth leakage protector is in a communication state; when the connection maintaining device 6 is powered off, the maintaining coil 61 is powered off, the movable pressing plate 34 is released, the lock catch 33 is disengaged from the hasp 24, the elastic sheet 5 is disconnected from the pin 3, and the socket is further disconnected; the metal plate is arranged in the communication maintaining device 6, the metal plate is L-shaped, one end of the first iron core 62 is fixed at the bottom of the metal plate, and when the movable pressing plate 34 is adsorbed by the communication maintaining device 6, the movable pressing plate 34 is simultaneously abutted against the first iron core 62 and a side plate of the L-shaped metal plate, so that the communication maintaining device 6 can stably adsorb and fix the movable pressing plate 34.

Example 2:

compared with embodiment 1, in this embodiment, as shown in fig. 7 to 10, the elastic piece pressing block 8a includes a pressing block upper portion 8c and a pressing block lower portion 8d, the pressing block upper portion 8c is provided with a hasp 24 and a vertical fork groove 23, the pressing block lower portion 8d is provided with a pressing rod 22, the pressing block upper portion 8c is hinged to the pressing block lower portion 8d through a first pin shaft 21, a pressing block spring 9 in a compressed state is arranged between the pressing block upper portion 8c and the pressing block lower portion 8d, when the pressing rod 22 and the elastic piece 5 are in an abutting state, the elastic force of the pressing block spring 9 can enable the pressing rod 22 to keep a stable acting force on the elastic piece 5, and the; the positions of the first support 43 and the second support 64 can be adjusted according to different requirements of customers;

when the communication maintaining device 6 is powered off, the communication maintaining device 6 stops working, the locking deflector rod 8b is released, and the lock catch 33 and the hasp 24 are released, so that the elastic sheet 5 and the terminal 85 are disconnected, and the circuit is further disconnected.

A hinged seat is arranged at the hinged position of the upper part 8c of the pressing block and the lower part 8d of the pressing block, a first pin shaft 21 is arranged in the hinged seat in a penetrating way, a limit stop 12 is also arranged on the hinged seat, and the limit stop 12 is used for controlling an opening angle between the upper part 8c of the pressing block and the lower part 8d of the pressing block when the pressing block rotates by taking the first pin shaft 21 as an axis; even if the rotation angle of the upper pressing block part 8c and the lower pressing block part 8d around the first pin 21 is within a certain range, the design can ensure that the elastic piece pressing block 8a can not be automatically disassembled after being assembled due to the elastic force of the pressing block spring 9 after the assembly is finished, and the upper pressing block part 8c and the lower pressing block part 8d can be limited.

Be equipped with articulated mounting in advance on articulated seat, articulated mounting includes boss 13 and joint recess 14 in advance, boss 13 is located the articulated department of briquetting upper portion 8c, joint recess 14 is located the articulated department of briquetting lower part 8d, cooperation through boss 13 and joint recess 14, realize articulated in advance of briquetting upper portion 8c and briquetting lower part 8d, be promptly under the condition of not installing first round pin axle 21, the installation of shell fragment briquetting 8a also can be accomplished, can further guarantee the coaxiality of briquetting upper portion 8c and briquetting lower part 8d through this design simultaneously, can reduce wear, and the integral erection is simple and convenient more.

Example 3:

compared to embodiment 1, in this embodiment, the socket housing 1 further includes an extension wire holder 84, and the extension wire holder 84 is used for electrically connecting with another socket or an electric device. As shown in fig. 2, the extension wire holder 84 and the power wire holder 83 are respectively located at two opposite sides of the earth leakage protection socket; the extension wire holder 84 functions as an outward output.

And the extension wire holder 84 is provided with an extension wire terminal 87 which extends out, and the earth leakage protector can control the disconnection and connection of the circuit between the power wire holder 83 and the extension wire terminal 87; specifically, the extended terminal 87 is provided with the extended wiring contact 92, the extended wiring contact 92 is provided in parallel with the electrical connection contact 16, and when the pressing lever 22 presses down the spring 5, the spring contact 51 can be brought into contact with the electrical connection contact 16 and the extended wiring contact 92 at the same time, and the electrical connection contact 16 and the extended wiring contact 92 can be connected to the spring contact 51 as a single body, whereby the same effect can be achieved.

Example 4:

compared with embodiment 1, in this embodiment, the socket housing 1 is provided with the second indication observing part 90, and the protector device 2 is provided with the indicator lamp, so that when the communication maintaining device 6 is powered on, the second indication observing part 90 can observe the indicator lamp to emit light, that is, in the embodiment, the indication observation is realized through a mechanical structure, and simultaneously, the state of the indicator lamp can be observed through the second indication observing part 90, so as to judge the state of the protector device 2.

Example 5:

compared with the embodiment 1, in this embodiment, the earth leakage protector further includes a transformer device, the transformer device includes a transformer housing 93, a mutual inductor disposed inside the transformer housing 93, and a hard electrical connection wire 94 penetrating through the mutual inductor on the transformer housing 93, one end of the hard electrical connection wire 94 is connected to the power connection base 83, and the other end of the hard electrical connection wire 94 is connected to the protruding piece 11 of the elastic piece 5, specifically, the hard electrical connection wire 94 is a bent metal piece, a soft power line is generally adopted in the existing earth leakage protector to directly penetrate inside the earth leakage protector, during the assembly and installation process, this part can only be manually installed, and cannot be automatically assembled, and the transformer structure of this embodiment can directly replace the soft power line originally required to manually penetrate inside the earth leakage protector by the hard metal piece which is easily inserted, is suitable for automatic splicing and assembling.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An earth leakage protection socket, characterized in that it comprises: a socket housing (1), a leakage protector and an electrical connection portion (3) provided in the socket housing (1);

the socket shell (1) further comprises a support frame (81) used for fixedly mounting the electric connection part (3), a base (82) used for fixedly mounting the leakage protector, and a power supply wire holder (83) used for connecting an external power supply;

one end of the electric connection part (3) is provided with a wiring terminal (85), the other end of the electric connection part (3) is provided with at least one plugging end (86), the upper part of the socket shell (1) is provided with a socket hole (91) corresponding to the plugging end (86), and the leakage protector can control the disconnection and the connection of a circuit between the power supply wiring seat (83) and the wiring terminal (85).

2. A residual current device as claimed in claim 1, wherein said residual current device comprises: the protector device (2) is arranged on the upper portion of the base (82), and the protector device (2) controls the connection and disconnection of the elastic piece (5) and the wiring terminal (85);

the protector device (2) comprises a communication maintaining device (6), a communication device (7) and a locking device (8), the locking device (8) is arranged between the communication maintaining device (6) and the communication device (7);

the locking device (8) comprises a spring plate pressing block (8a) and a locking shifting rod (8b), the locking shifting rod (8b) is movably hinged with a second support (64) arranged on the communicating device (7) through a second pin shaft (31), and the spring plate pressing block (8a) is movably hinged with a first support (43) arranged in the middle of the base (82) through a first pin shaft (21); the locking deflector rod (8b) is provided with a lock catch (33), a movable pressing plate (34) and a hasp slideway (36);

the spring plate pressing block (8a) comprises a pressing block upper portion (8c) and a pressing block lower portion (8d), a buckle (24) and a vertical fork groove (23) are arranged on the pressing block upper portion (8c), a pressing rod (22) is arranged on the pressing block lower portion (8d), the pressing block upper portion (8c) is hinged to the pressing block lower portion (8d) through a first pin shaft (21), a pressing block spring (9) in a compression state is arranged between the pressing block upper portion (8c) and the pressing block lower portion (8d), when the pressing rod (22) and the spring plate (5) are in a butt joint state, the elastic force of the pressing block spring (9) can enable the pressing rod (22) to keep a stable acting force on the spring plate (5), and the buckle (24) is used for being matched and abutted with the lock catch (33;

a second iron core which extends transversely is arranged on the communication device (7), and the second iron core is clamped and matched with the vertical fork groove (23); the communication maintaining device (6) comprises a first iron core (62) which is longitudinally arranged, and the first iron core (62) can be used for being in magnetic adsorption fit with the movable pressing plate (34);

when the communication maintaining device (6) is powered on, the second iron core drives the elastic sheet pressing block (8a) to rotate through the vertical fork groove (23), so that the pressing rod (22) positioned at the bottom of the elastic sheet pressing block (8a) presses the elastic sheet (5) downwards, meanwhile, the hasp (24) slides upwards along the hasp slide way (36), in the process that the hasp (24) slides to be abutted against the hasp (33), the movable pressing plate (34) continuously moves downwards, and the movable pressing plate (34) is adsorbed and fixed through the first iron core (62); the communication maintaining device (6) is used for fixing the position of the locking deflector rod (8b), so that the elastic sheet pressing block (8a) keeps a pressing state, and the elastic sheet (5) and the wiring terminal (85) keep a connection state, and further circuit communication is realized;

when the communication maintaining device (6) is powered off, the communication maintaining device (6) stops working, the locking deflector rod (8b) is released, and the lock catch (33) and the hasp (24) are tripped, so that the elastic sheet (5) is disconnected with the terminal (85), and further circuit breaking is realized.

3. A residual current device as claimed in claim 1, wherein said residual current device comprises: the protector device (2) is arranged on the upper portion of the base (82), and the protector device (2) controls the connection and disconnection of the elastic piece (5) and the wiring terminal (85);

the spring plate pressing block (8a) is provided with a hasp (24), a vertical fork groove (23) and a pressing rod (22), and the hasp (24) is used for being matched and abutted with the lock catch (33);

4. A leakage protection socket according to claim 2, wherein a hinge seat is provided at a hinge point of the upper pressing block portion (8c) and the lower pressing block portion (8d), the first pin (21) is inserted into the hinge seat, a limit stop (12) is further provided on the hinge seat, and the limit stop (12) is used for controlling an opening angle between the upper pressing block portion (8c) and the lower pressing block portion (8d) when the first pin (21) is used as an axis for rotation.

5. A leakage protection socket according to claim 2 or 3, wherein the locking lever (8b) is further provided with a pressing plate pin hole (63), and the movable pressing plate (34) is hinged to the pressing plate pin hole (63) through a pin.

6. A leakage protection socket according to claim 2 or 3, wherein the resilient plate (5) comprises a first resilient plate (52) and a second resilient plate (53), and the first resilient plate (52) and the second resilient plate (53) are fixed by resilient plate slots disposed at two sides of the communication maintaining device (6);

be equipped with on wiring end (85) and connect contact point (16) electrically, first shell fragment (52) and second shell fragment (53) tip all be equipped with connect the corresponding shell fragment contact (51) of contact point (16) electrically, work as depression bar (22) will when shell fragment (5) push down, shell fragment contact (51) with connect contact point (16) butt electrically.

7. A residual current protection socket as claimed in claim 1, wherein the socket housing (1) is further provided with a reset button (4) and a test button (10), and the bottoms of the reset button (4) and the test button (10) are respectively provided with a corresponding microswitch (88).

8. A residual current protection outlet according to claim 6, characterized in that said outlet housing (1) further comprises an extension wire holder (84), said extension wire holder (84) being adapted to be electrically connected to another outlet or a consumer.

9. A residual current device socket as claimed in claim 8, wherein said extension terminal holder (84) is provided with an extension terminal (87) which is protruded, and said residual current device is capable of controlling the disconnection and connection of the electric circuit between said power source terminal holder (83) and said extension terminal (87).

10. A residual current protection socket according to claim 9, wherein an extended connection contact (92) is provided on the extended terminal (87), the extended connection contact (92) is juxtaposed with the electrical connection contact (16), and when the pressing rod (22) presses down the elastic piece (5), the elastic piece contact (51) can be abutted against the electrical connection contact (16) and the extended connection contact (92) simultaneously.

11. A leakage protection socket according to claim 5, wherein the socket housing (1) is provided with a first indication viewing portion (89), the pressure plate pin hole (63) is provided with an indication block (42), the first indication viewing portion (89) corresponds in position to the indication block (42), and the indication block (42) is visible through the first indication viewing portion (89) when the communication maintaining means (6) is energized.

12. A leakage protection outlet according to claim 2, wherein the outlet housing (1) is provided with a second indication observation portion (90), and the protector device (2) is provided with an indicator light, and when the continuity maintaining device (6) is energized, the second indication observation portion (90) is used to observe the illumination of the indicator light.

13. A leakage protection socket according to claim 2 or 3, wherein the leakage protector further comprises a transformer device, the transformer device comprises a transformer housing (93), a mutual inductor arranged inside the transformer housing (93), and a hard electrical connection wire (94) passing through the mutual inductor and arranged on the transformer housing (93), one end of the hard electrical connection wire (94) is connected with the power connection base (83), and the other end of the hard electrical connection wire (94) is connected with the elastic piece (5).

14. A residual current protective outlet according to claim 13, characterized in that said rigid electrical connection wire (94) is a bent metal sheet.

15. A residual current device according to claim 2, characterized in that said communication maintaining means (6) further comprises a maintaining coil (61), said maintaining coil (61) being fixed inside said communication maintaining means (6), said first iron core (62) being vertically fixed inside the inner cavity of said maintaining coil (61); one end of the first iron core (62) is fixedly connected with the bottom of the communication maintaining device (6), and the other end of the first iron core (62) is used for adsorbing the movable pressing plate (34).

16. A residual current device according to claim 2, characterized in that said communicating means (7) further comprises a communicating coil (71) and a communicating spring (73), said communicating coil (71) is fixed inside said communicating means (7), said communicating spring (73) and said second iron core (72) are horizontally arranged in the inner cavity of said communicating coil (71).