Leakage protector

1. A leakage protector, comprising: a protector device ( 2 ), pins ( 3 ), a bottom plate ( 4 ) and a elastic sheet ( 5 ), wherein the protector device ( 2 ) is disposed at an upper part of the bottom plate ( 4 ), the protector device ( 2 ) controls switching-off and switching-on of the leakage protector, and the pins ( 3 ) are disposed at a lower part of the bottom plate ( 4 );

the protector device ( 2 ) comprises a communication maintaining device ( 6 ), a communication device ( 7 ) and a locking device ( 8 ), and the locking device ( 8 ) is disposed between the communication maintaining device ( 6 ) and the communication device ( 7 ) and is configured to control disconnection and connection of the elastic sheet ( 5 ) and the pins ( 3 );

the locking device ( 8 ) comprises an elastic sheet pressing block ( 8 a ) and a locking deflector rod ( 8 b ), the locking deflector rod ( 8 b ) is movably hinged with a second support ( 64 ) disposed on the communication device ( 7 ) by a second pin shaft ( 31 ), and the elastic sheet pressing block ( 8 a ) is movably hinged with a first support ( 43 ) disposed in a middle position of the bottom plate ( 4 ) by a first pin shaft ( 21 ); wherein the locking device ( 8 ) comprises a latch ( 33 ), a movable pressing plate ( 34 ) and a hasp slide way ( 36 ) provided on the locking deflector rod ( 8 b ) and a hasp ( 24 ), a vertical fork groove ( 23 ) and a pressing rod ( 22 ) provided on the elastic sheet pressing block ( 8 a ), and the hasp ( 24 ) is configured to abut against the latch ( 33 );

the communication device ( 7 ) comprises a second iron core ( 72 ) extending transversely, and the second iron core ( 72 ) is in clamping fit with the vertical fork groove ( 23 ); the communication maintaining device ( 6 ) comprises a first iron core ( 62 ) disposed longitudinally, and the first iron core ( 62 ) in an energized state is configured to be in magnetic adsorption fit with the movable pressing plate ( 34 );

when a power source is switched on, the second iron core ( 72 ) drives the elastic sheet pressing block ( 8 a ) to rotate by the vertical fork groove ( 23 ), so that the pressing rod ( 22 ) positioned at a bottom of the elastic sheet pressing block ( 8 a ) presses the elastic sheet ( 5 ) downward, and meanwhile, the hasp ( 24 ) slides upward along the hasp slide way ( 36 ); furthermore, in a process that the hasp ( 24 ) slides to abut against the latch ( 33 ), the movable pressing plate ( 34 ) continuously moves downward, and the movable pressing plate ( 34 ) is adsorbed and fixed by the first iron core ( 62 ); the communication maintaining device ( 6 ) is configured to fix a position of the locking deflector rod ( 8 b ) to enable the elastic sheet pressing block ( 8 a ) to be maintained in a pressed state and, enable the elastic sheet ( 5 ) and the pins ( 3 ) to be maintained in a connected state, thereby realizing circuit switching-on; and

when the power source is switched off, the communication maintaining device ( 6 ) stops working, the locking deflector rod ( 8 b ) is released, and the latch ( 33 ) is disengaged from the hasp ( 24 ) to enable the elastic sheet ( 5 ) to be disconnected from the pins ( 3 ), thereby realizing circuit switching-off.

2. The leakage protector according to claim 1 , wherein the elastic sheet ( 5 ) comprises a first elastic, sheet ( 52 ), a second elastic sheet ( 53 ) and a PE wire elastic sheet ( 54 ), the first elastic sheet ( 52 ) and the second elastic sheet ( 53 ) are respectively fixed by elastic sheet slots ( 55 ) disposed at two sides of the communication maintaining device ( 6 ), and the PE wire elastic sheet ( 54 ) passes through a bottom of the communication maintaining device ( 6 ) and is clamped and fixed with the communication maintaining device ( 6 ) by the bottom plate ( 4 );

tops of the pins ( 3 ) are provided with electrical connection contacts ( 16 ), ends of the first elastic sheet ( 52 ), the second elastic sheet ( 53 ) and the PE wire elastic sheet ( 54 ) are provided with elastic sheet contacts ( 51 ) corresponding to the electrical connection contacts ( 16 ); and when the pressing rod ( 22 ) presses the elastic sheet ( 5 ) downward, the elastic sheet contacts ( 51 ) are in contact with the electrical connection contacts ( 16 ) respectively, and the elastic sheet contacts ( 51 ) on the first elastic sheet ( 52 ); in an using process, each of the second elastic sheet ( 53 ) and the PE wire elastic sheet ( 54 ) is provided with a disconnected state for disconnecting from the electrical connection contact ( 16 ) and a connected state for connecting with the electrical connection contact ( 16 ).

3. The leakage protector according to claim 2 , wherein the leakage protector comprises a bulge ( 41 ), wherein the bulge ( 41 ) is disposed in a position, corresponding to the PE wire elastic sheet ( 54 ), of the pressing rod ( 22 ); when the pressing rod ( 22 ) is pressed downward, the bulge ( 41 ) enables the PE wire elastic sheet ( 54 ) to be connected with the pins ( 3 ) before the first elastic sheet ( 52 ) and the second elastic sheet ( 53 ); and when the pressing rod ( 22 ) is lifted, the bulge ( 41 ) enables the PE wire elastic sheet ( 54 ) to be disconnected from the pins ( 3 ) after the first elastic sheet ( 52 ) and the second elastic sheet ( 53 ).

4. The leakage protector according to claim 2 , wherein the leakage protector comprises a bulge ( 41 ), wherein the bulge ( 41 ) is disposed in a position, corresponding to the PE wire elastic sheet ( 54 ), of the pressing rod ( 22 ); when the pressing rod ( 22 ) is pressed downward, the bulge ( 41 ) enables the PE wire elastic sheet ( 54 ) to be connected with the pins ( 3 ) before the first elastic sheet ( 52 ) and the second elastic sheet ( 53 ); and when the pressing rod ( 22 ) is lifted, the bulge ( 41 ) enables the PE wire elastic sheet ( 54 ) to be disconnected from the pins ( 3 ) after the first elastic sheet ( 52 ) and the second elastic sheet ( 53 ).

5. The leakage protector according to claim 1 , wherein the leakage protector comprises a plurality of buckle feet ( 10 ) which are wedge-shaped, the plurality of buckle feet ( 10 ) are provided on bottoms of the communication maintaining device ( 6 ) and the communication device ( 7 ) respectively, and the communication maintaining device ( 6 ) and the communication device ( 7 ) are fastened and fixed with the bottom plate ( 4 ) respectively by the plurality of buckle feet ( 10 ).

6. The leakage protector according to claim 1 , wherein the communication device ( 7 ) further comprises a communication coil ( 71 ) and a communication spring ( 73 ), the communication coil ( 71 ) is fixed inside the communication device ( 7 ), and the communication spring ( 73 ) and the second iron core ( 72 ) are horizontally disposed in an inner cavity of the communication coil ( 71 ).

7. The leakage protector according to claim 1 , wherein the communication maintaining device ( 6 ) further comprises a maintaining coil ( 61 ), the maintaining coil ( 61 ) is fixed inside the communication maintaining device ( 6 ), and the first iron core ( 62 ) is vertically fixed in an inner cavity of the maintaining coil ( 61 ); and one end of the first iron core ( 62 ) is fixedly connected with a bottom of the communication maintaining device ( 6 ), and the other end of the first iron core ( 62 ) is configured to adsorb the movable pressing plate ( 34 ).

8. The leakage protector according to claim 7 , wherein the leakage protector further comprises a pressing plate pin hole ( 63 ) disposed on the locking deflector rod ( 8 b ), and the movable pressing plate ( 34 ) is matched and hinged with the pressing plate pin hole ( 63 ) by a pin shaft.

9. The leakage protector according to claim 1 , wherein the second pin shaft ( 31 ) comprises a sleeve part and a rotating shaft center, the sleeve part is disposed on the locking deflector rod ( 8 b ), the rotating shaft center is disposed on the second support ( 64 ), the sleeve part is sleeved outside the rotating shaft center, and the locking deflector rod ( 8 b ) is capable of rotating around the rotating shaft center through the sleeve part.

10. The leakage protector according to claim 1 , wherein the leakage protector further comprises a pressing top block ( 35 ) provided on the locking deflector rod ( 8 b ), and the pressing top block ( 35 ) is positioned at one side of the latch ( 33 ); and when the power source is switched on, the second iron core ( 72 ) drives the elastic sheet pressing block ( 8 a ) to rotate by the vertical fork groove ( 23 ), the hasp ( 24 ) slides upward along the hasp slide way ( 36 ), and the hasp ( 24 ) instantly abuts against the pressing top block ( 35 ) after sliding through the latch ( 33 ), so that the movable pressing plate ( 34 ) moves downward to be adsorbed and fixed by the first iron core ( 62 ).

11. The leakage protector according to claim 1 , wherein the leakage protector further comprises an indicating block ( 42 ) provided on the locking deflector rod ( 8 b ), and the indicating block ( 42 ) is positioned at an upper part of the locking deflector rod ( 8 b ); when the power source is switched on, the indicating block ( 42 ) moves into an observation window ( 15 ) of a protector housing ( 1 ); when the power source is switched off, the indicating block ( 42 ) is removed from the observation window ( 15 ) of the protector housing ( 1 ); and the indicating block ( 42 ) is red.

12. The leakage protector according to claim 1 , wherein the leakage protector comprises a limiting baffle ( 11 ) provided on the locking deflector rod ( 8 b ), and the limiting baffle ( 11 ) is disposed at an end of the locking deflector rod ( 8 b ) and is positioned at an upper part of the second support ( 64 ); and when the power source is switched off, the limiting baffle ( 11 ) abuts against the second support ( 64 ) so as to limit a rotation angle of the locking deflector rod ( 8 b ).

13. The leakage protector according to claim 1 , wherein 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 by the elastic sheet slots ( 55 ) disposed at two sides of the communication maintaining device ( 6 ) respectively;

tops of the pins ( 3 ) are provided with electrical connection contacts ( 16 ), and ends of the first elastic sheet ( 52 ) and the second elastic sheet ( 53 ) are provided with elastic sheet contacts ( 51 ) corresponding to the electrical connection contacts ( 16 ); when the pressing rod ( 22 ) presses the elastic sheet ( 5 ) downward, the elastic sheet contacts ( 51 ) are in contact with the electrical connection contacts ( 16 ); and in a using process, each of the elastic sheet contacts ( 51 ) on the first elastic sheet ( 52 ) and the second elastic sheet ( 53 ) is provided with a disconnected state for disconnecting from the electrical connection contact ( 16 ) and a connected state for connecting with the electrical connection contact ( 16 ), and a PE wire can not be disconnected and is maintained in a connected state.

14. The leakage protector according to claim 1 , wherein the elastic sheet ( 5 ) comprises a first elastic sheet ( 52 ), a second elastic sheet ( 53 ) and a PE wire elastic sheet ( 54 ), the first elastic sheet ( 52 ) and the second elastic sheet ( 53 ) are respectively fixed by elastic sheet slots ( 55 ) disposed at two sides of the communication maintaining device ( 6 ), and the PE wire elastic sheet ( 54 ) passes through a bottom of the communication maintaining device ( 6 ) and is clamped and fixed with the communication maintaining device ( 6 ) by the bottom plate ( 4 );

tops of the pins ( 3 ) are provided with electrical connection contacts ( 16 ), and ends of the first elastic sheet ( 52 ), the second elastic sheet ( 53 ) and the PE wire elastic sheet ( 54 ) are provided with elastic sheet contacts ( 51 ) corresponding to the electrical connection contacts ( 16 ); and when the pressing rod ( 22 ) presses the elastic sheet ( 5 ) downward, the elastic sheet contacts ( 51 ) are in contact with the electrical connection contacts ( 16 ) respectively, and in a using process, the elastic sheet contacts ( 51 ) on the first elastic sheet ( 52 ), each of the second elastic sheet ( 53 ) and the PE wire elastic sheet ( 54 ) is provided with a disconnected state for disconnecting from the electrical connection contact ( 16 ) and a connected state for connecting with the electrical connection contact ( 16 ).

15. The leakage protector according to claim 1 , wherein the locking device ( 8 ) comprises a hinged seat disposed at a hinged portion of the pressing block upper part ( 8 c ) and the pressing block lower part ( 8 d ), the first pin shaft ( 21 ) penetrates through an inside of the hinged seat, the hinged seat is further provided with a limit stop ( 12 ), and the limit stop ( 12 ) is configured to control an opening angle between the pressing block upper part ( 8 c ) and the pressing block lower part ( 8 d ) when the pressing block upper part ( 8 c ) and the pressing block lower part ( 8 d ) rotate by taking the first pin shaft ( 21 ) as an axial center.

16. The leakage protector according to claim 15 , wherein the locking device ( 8 ) comprises a pre-hinging device provided on the hinged seat, the pre-hinging device comprises a lug boss ( 13 ) and a clamping groove ( 14 ), the lug boss ( 13 ) is positioned at the hinged portion of the pressing block upper part ( 8 c ), the clamping groove ( 14 ) is positioned at the hinged portion of the pressing block lower part ( 8 d ), and pre-hinging of the pressing block upper part ( 8 c ) and the pressing block lower part ( 8 d ) is realized by a cooperation of the lug boss ( 13 ) and the clamping groove ( 14 ).

17. The leakage protector according to claim 15 , wherein the locking device ( 8 ) comprises a pre-hinging device, the pre-hinging device is provided on the hinged seat, the pre-hinging device comprises a lug boss ( 13 ) and a clamping groove ( 14 ), the clamping groove ( 14 ) is positioned at the hinged portion of the pressing block upper part ( 8 c ), the lug boss ( 13 ) is positioned at the hinged portion of the pressing block lower part ( 8 d ), and pre-hinging of the pressing block upper part ( 8 c ) and the pressing block lower part ( 8 d ) is realized by the cooperation of the lug boss ( 13 ) and the clamping groove ( 14 ).

18. The leakage protector according to claim 1 , wherein the leakage protector comprises a plurality of buckle feet ( 10 ) which are wedge-shaped, the plurality of buckle feet ( 10 ) are provided on bottoms of the communication maintaining device ( 6 ) and the communication device ( 7 ) respectively, and the communication maintaining device ( 6 ) and the communication device ( 7 ) are fastened and fixed with the bottom plate ( 4 ) respectively by the plurality of buckle feet ( 10 ).

19. The leakage protector according to claim 1 , wherein the communication device ( 7 ) further comprises a communication coil ( 71 ) and a communication spring ( 73 ), the communication coil ( 71 ) is fixed inside the communication device ( 7 ), and the communication spring ( 73 ) and the second iron core ( 72 ) are horizontally disposed in an inner cavity of the communication coil ( 71 ).

20. The leakage protector according to claim 1 , wherein the communication maintaining device ( 6 ) further comprises a maintaining coil ( 61 ), the maintaining coil ( 61 ) is fixed inside the communication maintaining device ( 6 ), and the first iron core ( 62 ) is vertically fixed in an inner cavity of the maintaining coil ( 61 ); and one end of the first iron core ( 62 ) is fixedly connected with a bottom of the communication maintaining device ( 6 ), and the other end of the first iron core ( 62 ) is configured to adsorb the movable pressing plate ( 34 ).

21. The leakage protector according to claim 20 , wherein leakage protector further comprises a pressing plate pin hole ( 63 ) disposed on the locking deflector rod ( 8 b ), and the movable pressing plate ( 34 ) is matched and hinged with the pressing plate pin hole ( 63 ) by a pin shaft.

22. The leakage protector according to claim 1 , wherein the second pin shaft ( 31 ) comprises a sleeve part and a rotating shaft center, the sleeve part is disposed on the locking deflector rod ( 8 b ), the rotating shaft center is disposed on the second support ( 64 ), the sleeve part is sleeved outside the rotating shaft center, and the locking deflector rod ( 8 b ) is capable of rotating rotate around the rotating shaft center through the sleeve part.

23. The leakage protector according to claim 1 , wherein the leakage protector further comprises a pressing top block ( 35 ), the pressing top block ( 35 ) is provided on the locking deflector rod ( 8 b ), and the pressing top block ( 35 ) is positioned at one side of the latch ( 33 ); and when the power source is switched on, the second iron core ( 72 ) drives the elastic sheet pressing block ( 8 a ) to rotate by the vertical fork groove ( 23 ), the hasp ( 24 ) slides upward along the hasp slide way ( 36 ), and the hasp ( 24 ) instantly abuts against the pressing top block ( 35 ) after sliding through the latch ( 33 ), so that the movable pressing plate ( 34 ) moves downward to be adsorbed and fixed by the first iron core ( 62 ).

24. The leakage protector according to claim 1 , wherein the leakage protector comprises an indicating block ( 42 ) provided on the pressing block upper part ( 8 c ) and the pressing block lower part ( 8 d ) are provided with spring grooves in positions corresponding to pressing block springs ( 9 ), the locking device ( 8 ) comprises spring pillars disposed in the spring grooves, and the spring grooves and the spring pillars are configured to install the pressing block springs ( 9 ).

25. The leakage protector according to claim 1 , wherein the leakage protector further comprises an indicating block ( 42 ) provided on the locking deflector rod ( 8 b ), and the indicating block ( 42 ) is positioned at an upper part of the locking deflector rod ( 8 b ); when the power source is switched on, the indicating block ( 42 ) moves into an observation window ( 15 ) of a protector housing ( 1 ); when the power source is switched off, the indicating block ( 42 ) is removed from the observation window ( 15 ) of the protector housing ( 1 ); and the indicating block ( 42 ) is red.

26. The leakage protector according to claim 1 , wherein the leakage protector comprises a limiting baffle ( 11 ) provided on the locking deflector rod ( 8 b ), and the limiting baffle ( 11 ) is disposed at an end of the locking deflector rod ( 8 b ) and is positioned at an upper part of the second support ( 64 ); and when the power source is switched off, the limiting baffle ( 11 ) abuts against the second support ( 64 ) so as to limit a rotation angle of the locking deflector rod ( 8 b ).

27. The leakage protector according to claim 1 , wherein the elastic sheet ( 5 ) comprise 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 by the elastic sheet slots ( 55 ) disposed at two sides of the communication maintaining device ( 6 ) respectively;

tops of the pins ( 3 ) are provided with electrical connection contacts ( 16 ), and ends of the first elastic sheet ( 52 ) and the second elastic sheet ( 53 ) are provided with elastic sheet contacts ( 51 ) corresponding to the electrical connection contacts ( 16 ); when the pressing rod ( 22 ) presses the elastic sheet ( 5 ) downward, the elastic sheet contacts ( 51 ) are in contact with the electrical connection contacts ( 16 ); and in a using process, each of the elastic sheet contacts ( 51 ) on the first elastic sheet ( 52 ) and the second elastic sheet ( 53 ) is provided with a disconnected state for disconnecting from the electrical connection contact ( 16 ) a connected state for connecting with the electrical connection contact ( 16 ), and a PE wire can not be disconnected and is maintained in a connected state.

28. A leakage protector, comprising: a protector device ( 2 ), pins ( 3 ), a bottom plate ( 4 ) and a elastic sheet ( 5 ), wherein the protector device ( 2 ) is disposed at an upper part of the bottom plate ( 4 ), the protector device ( 2 ) controls switching-off and switching-on of the leakage protector, and the pins ( 3 ) are disposed at a lower part of the bottom plate ( 4 );

the protector device ( 2 ) comprises a communication maintaining device ( 6 ), a communication device ( 7 ) and a locking device ( 8 ), and the locking device ( 8 ) is disposed between the communication maintaining device ( 6 ) and the communication device ( 7 ) and is configured to control disconnection and connection of the elastic sheet ( 5 ) and the pins ( 3 );

the locking device ( 8 ) comprises an elastic sheet pressing block ( 8 a ) and a locking deflector rod ( 8 b ), the locking deflector rod ( 8 b ) is movably hinged with a second support ( 64 ) disposed on the communication device ( 7 ) by a second pin shaft ( 31 ), and the elastic sheet pressing block ( 8 a ) is movably hinged with a first support ( 43 ) disposed in the middle position of the bottom plate ( 4 ) by a first pin shaft ( 21 ); wherein the locking device ( 8 ) comprises a latch ( 33 ), a movable pressing plate ( 34 ) and a hasp slide way ( 36 ), the latch ( 33 ), the movable pressing plate ( 34 ) and the hasp slide way ( 36 ) is provided on the locking deflector rod ( 8 b )

and a pressing block upper part ( 8 c ) and a pressing block lower part ( 8 d ), the locking device ( 8 ) comprises a hasp ( 24 ), a vertical fork groove ( 23 ) provided on the pressing block upper part ( 8 c ), a pressing rod ( 22 ) provided on the pressing block lower part ( 8 d ) and a pressing block spring ( 9 ), the pressing block upper part ( 8 c ) is hinged with the pressing block lower part ( 8 d ) by a first pin shaft ( 21 ), and the pressing block spring ( 9 ) in a compressed state is disposed between the pressing block upper part ( 8 c ) and the pressing block lower part ( 8 d ); when the pressing rod ( 22 ) abuts against the elastic sheet ( 5 ), an elasticity of the pressing block spring ( 9 ) enables the pressing rod ( 22 ) to maintain a stable action force against the elastic sheet ( 5 ), and the hasp ( 24 ) is configured to abut against the latch ( 33 );

the communication device ( 7 ) comprises a second iron core ( 72 ) extending transversely, and the second iron core ( 72 ) is in clamping fit with the vertical fork groove ( 23 ); the communication maintaining device ( 6 ) comprises a first iron core ( 62 ) disposed longitudinally, and the first iron core ( 62 ) is configured to be in magnetic adsorption fit with the movable pressing plate ( 34 );

when a power source is switched on, the second iron core ( 72 ) drives the elastic sheet pressing block ( 8 a ) to rotate by the vertical fork groove ( 23 ), so that the pressing rod ( 22 ) positioned at a bottom of the elastic sheet pressing block ( 8 a ) presses the elastic sheet ( 5 ) downward, and meanwhile, the hasp ( 24 ) slides upward along the hasp slide way ( 36 ); furthermore, in a process that the hasp ( 24 ) slides to abut against the latch ( 33 ), the movable pressing plate ( 34 ) continuously moves downward, and the movable pressing plate ( 34 ) is adsorbed and fixed by the first iron core ( 62 ); the communication maintaining device ( 6 ) is configured to fix a position of the locking deflector rod ( 8 b ) to enable the elastic sheet pressing block ( 8 a ) to be maintained in a pressed state and enable the elastic sheet ( 5 ) and the pins ( 3 ) to be maintained in a connected state, thereby realizing circuit switching-on; and

when the power source is switched off, the communication maintaining device ( 6 ) stops working, the locking deflector rod ( 8 b ) is released, and the latch ( 33 ) is disengaged from the hasp ( 24 ) to enable the elastic sheet ( 5 ) to be disconnected from the pins ( 3 ), thereby realizing circuit switching-off.