CN111211016A - Separated leakage protector - Google Patents

Abstract

The invention discloses a separated leakage protector, relating to the technical field of electrical equipment protection, comprising: the protector device, the pins, the bottom plate and the elastic sheet; the protector device comprises a communication maintaining device, a communication device and a locking device; the locking device comprises a spring plate pressing block and a locking deflector rod; the locking deflector rod is provided with a lock catch, a movable pressing plate and a hasp slideway; the elastic piece pressing block is provided with a pressing rod, a hasp and a vertical fork groove; 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 is provided with a first iron core which is longitudinally fixed, the first iron core is in adsorption fit with the movable pressing plate, and the elastic piece pressing block comprises an upper pressing block part and a lower pressing block part; the leakage protector can be broken through the matching relation between the mechanical structures under the condition of maintaining the failure of the coil; the pressing rod at the lower part of the pressing block can apply stable pressing force to the elastic sheet by adopting the pressing block spring, and the service life of the leakage protector is greatly prolonged by arranging the movable pressing plate.

Description

Separated leakage protector

Technical Field

The invention relates to the technical field of electrical equipment protection, in particular to a separated leakage protector.

Background

When the equipment has leakage fault or needs to protect the person with fatal danger from electric shock, the leakage protector can disconnect the main circuit in time, thereby being widely applied; the application technology of the leakage protector is mature, and the leakage protector is divided into a voltage type and a current type according to the protection principle. From the mechanical structure, there are self-locking type and attraction type, but the current or voltage mechanical self-locking type leakage protector is mainly used. The biggest characteristic of the mechanical self-locking structure is as follows: when the power supply of the leakage protector in operation is interrupted or the power supply loop is in phase failure and the line is in poor contact, the mechanical self-locking structure of the leakage protector in a closed state can not actively break the closed contact, and at the moment, if the power supply loop is in abnormal phase failure and the ground wire is in abnormal electrification or leaks electricity, the leakage protector loses the protection effect, so that safety accidents are caused; aiming at the problems, the invention designs a self-release mechanical structure, which adopts a coil continuous power supply pull-in release mechanism, when power supply is interrupted, poor contact and phase loss, the pull-in hold loop of the mechanical structure cannot generate magnetic force to pull the self-release mechanism due to voltage loss, so that the release loop is disconnected, and a closed contact is disconnected, thereby forming active protection and avoiding potential safety hazard.

Disclosure of Invention

First, technical problem to be solved

The invention provides a separated leakage protector aiming at the defects in the prior art, solves the problem that the leakage protector can be broken only under the condition of power-on in the prior leakage protector, and solves the problems that the prior leakage protector is easy to wear and has short service life.

Second, technical scheme

In order to solve the above technical problem, the present invention provides a separated leakage protector, including: the protective device is arranged on the upper part of the bottom plate, the protective device controls the opening and closing of the separated leakage protector, and the plug pins are arranged on the lower part of the bottom plate;

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 and is used for controlling the connection and disconnection of the elastic sheet and the pins;

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 bottom plate 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 an abutting state, the elastic force of the pressing block spring can enable the pressing rod to keep stable acting force on the spring plate, and the hasp is used for being;

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

when the power supply is switched on, 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-down state, and the elastic sheet and the pin keep a connection state, thereby realizing circuit communication;

when the power supply is disconnected, 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 and the plug pin are disconnected, and the circuit is further broken.

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.

The elastic pieces comprise a first elastic piece, a second elastic piece and a PE wire elastic piece, the first elastic piece and the second elastic piece are fixed through elastic piece clamping grooves arranged on two sides of the communication maintaining device, and the PE wire elastic piece penetrates through the bottom of the communication maintaining device and is clamped and fixed by the bottom plate and the communication maintaining device; the top of the pin is provided with an electric connection contact point, the tail end of the elastic sheet is provided with an elastic sheet contact corresponding to the electric connection contact point, and when the elastic sheet is pressed down by the pressing rod, the elastic sheet contact is contacted with the electric connection contact point; the elastic sheet contacts on the first elastic sheet, the second elastic sheet and the PE wire elastic sheet can be disconnected with the electric connection contact.

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; the top of the pin is provided with an electric connection contact point, the end parts of the first elastic sheet and the second elastic sheet are provided with elastic sheet contact points corresponding to the electric connection contacts, and when the elastic sheet is pressed down by the pressing rod, the elastic sheet contacts are contacted with the electric connection contact points; the elastic sheet contacts on the first elastic sheet and the second elastic sheet can be disconnected with the electric connection contacts, and the PE wire cannot be disconnected and keeps connected.

The bottom parts of the communication maintaining device and the communication device are provided with wedge-shaped buckling feet, and the communication maintaining device and the communication device are buckled and fixed with the bottom plate through the buckling feet respectively.

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 in proper order set up at the intercommunication coil inner chamber.

The communication maintaining device also comprises an L-shaped metal plate and 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; one end of the first iron core is fixedly connected with the metal plate bottom plate, and the metal plate side plate and the other end of the first iron core are used for adsorbing and fixing the movable pressing plate.

The second pin shaft comprises a sleeve portion and a rotating shaft center, the sleeve portion is arranged on the locking deflector rod, the rotating shaft center is arranged on the second support, the sleeve portion is sleeved outside the rotating shaft center, and the locking deflector rod can rotate around the rotating shaft center through the sleeve portion.

Wherein, be equipped with articulated mounting in advance on the articulated seat, articulated mounting includes boss and joint recess in advance, and the boss is located the articulated department on briquetting upper portion, and the joint recess is located the articulated department in briquetting lower part, through the cooperation of boss and joint recess, realizes that briquetting upper portion and briquetting lower part are articulated in advance.

Wherein, be equipped with articulated mounting in advance on the articulated seat, articulated mounting includes boss and joint recess in advance, and the joint recess is located the articulated department on briquetting upper portion, and the boss is located the articulated department in briquetting lower part, through the cooperation of boss and joint recess, realizes that briquetting upper portion and briquetting lower part are articulated in advance.

Wherein, still be equipped with on the locking driving lever and compress tightly the kicking block, compress tightly the kicking block and be located hasp one side, when switch on, the second iron core drives the shell fragment briquetting rotatory through erecting the fork groove, and the hasp upwards slides along the hasp slideway to the hasp slides through the hasp after with compress tightly the instantaneous butt of kicking block, thereby make the activity clamp plate downstream fixed by first iron core absorption through with compressing tightly the kicking block butt.

The locking driving lever is provided with an indicating block, the indicating block is positioned on the upper portion of the locking driving lever, when the power supply is switched on, the indicating block moves into the observation window of the protector shell, when the power supply is switched off, the indicating block moves out of the observation window of the protector shell, and the color of the indicating block is red.

Wherein, still be equipped with limit baffle on the locking driving lever, limit baffle sets up at locking driving lever tip and is located second support upper portion, and when the power disconnection, thereby limit baffle can carry on spacingly with second support butt to the rotation angle of locking driving lever.

The position of the pressing rod, corresponding to the PE wire elastic sheet, is provided with a lug, and when the pressing rod is pressed down, the lug enables the PE wire elastic sheet to be communicated with the pin before the first elastic sheet and the second elastic sheet; when the pressure lever is lifted, the lug ensures that the PE wire elastic sheet is disconnected with the pin after the first elastic sheet and the second elastic sheet.

The locking deflector rod is also provided with a pressure plate pin hole, and the movable pressure plate is matched and hinged with the pressure plate pin hole through a pin shaft.

Third, beneficial effect

Compared with the prior art, the split type leakage protector provided by the invention can be used for breaking the circuit of the split type leakage protector through the matching relation between the mechanical structures under the condition of maintaining the failure of the coil, so that the safety in the use process is greatly improved; meanwhile, the design of the hasp sliding channel and the spring enables the split type leakage protector to have higher reliability and further enhance the safety performance;

the upper part of the pressing block and the lower part of the pressing block are connected through the pressing block spring to form the elastic sheet pressing block in a combined mode, so that the elastic sheet pressing block is not only carried out by a fixed limiting mechanical structure in the process of pressing the elastic sheet, the pressing rod at the lower part of the pressing block can apply stable pressing force to the elastic sheet through the pressing block spring, and after mechanical abrasion is generated due to long-time use in the follow-up process, the opening angle between the upper part of the pressing block and the lower part of the pressing block in the rotation process of taking the first pin shaft as the axis is increased through the elastic force of the pressing block spring, so that the pressing force of the pressing rod at the lower part of the;

the movable pressing plate can be pushed by the hasp to rotate for a certain angle through the arrangement of the pressing top block, so that the first iron core can adsorb the movable pressing plate more easily;

furthermore, the limitation of the rotation angle range of the locking deflector rod is realized through the limiting action of the limiting baffle; and the design through activity clamp plate has improved the life of disconnect-type earth-leakage protector greatly.

Drawings

Fig. 1 is an exploded view of a separated earth leakage protector according to the present invention;

FIG. 2 is a perspective view of the separated leakage protector of the present invention;

FIG. 3 is a power-off structure of the separated leakage protector of the present invention;

FIG. 4 is a diagram of the power-on state structure of the separated leakage protector of the present invention;

FIG. 5 is a structural diagram of a locking device of the separated leakage protector of the present invention;

FIG. 6 is a structure diagram of a locking deflector rod of the separated leakage protector of the present invention;

fig. 7 is a structural diagram of a spring plate pressing block of the separated leakage protector of the invention 1;

fig. 8 is a structural diagram 2 of a spring plate pressing block of the separated leakage protector of the invention;

fig. 9 is a structural diagram of the separated leakage protector in the embodiment 2 of the present invention;

FIG. 10 is an internal structural view of the communication maintaining apparatus according to the present invention;

in the figure: 1 is a protector shell; 2 is a protector device; 3 is a pin; 4 is a bottom plate; 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 pressure block spring; 10 is a fastening pin; 11 is a limit baffle; 12 is a limit stop block; 13 is a boss; 14 is a clamping groove; 15 is an observation window; 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; 35 is a pressing top block; 36 is a hasp slideway; 41 is a bump; 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; 54 is PE line spring plate; 55 is a spring plate clamping groove; 56 is a metal plate; 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; and 73 is a communication spring.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with 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:

a separated leakage protector according to an embodiment of the present invention, as shown in fig. 1 and 2, includes: the protective device comprises a protective device shell 1, a protective device 2, a pin 3, a bottom plate 4 and an elastic sheet 5, wherein the protective device 2 is arranged on the upper part of the bottom plate 4, the protective device 2 controls the opening and closing of the separated leakage protector, and the pin 3 is arranged on the 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, wherein the locking device 8 is arranged between the communication maintaining device 6 and the communication device 7 and is used for controlling the opening and closing of the elastic sheet 5 and the pin 3;

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 bottom plate 4 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 piece pressing block 8a comprises a pressing block upper portion 8c and a pressing block lower portion 8d, a hasp 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 compressed state is arranged between the pressing block upper portion 8c and the pressing block lower portion 8d, when the pressing rod 22 is in a butting state with the spring piece 5, the elastic force of the pressing block spring 9 can enable the pressing rod 22 to keep a stable acting force on the spring piece 5, and the hasp 24 is used for; the positions of the first support 43 and the second support 64 can be adjusted according to different requirements of customers;

as shown in fig. 6, 7 and 8, hinged seats are respectively arranged at the hinged positions of the upper part and the lower part of the pressing block, a first pin shaft 21 is arranged in the hinged seats in a penetrating manner, so that the upper part and the lower part of the pressing block can rotate around the first pin shaft 21, the hinged seats are also provided with limit stoppers 12, and the limit stoppers 12 are used for controlling the opening angle between the upper part 8c of the pressing block and the lower part 8d of the pressing block when rotating around the first pin shaft 21, so that even if the rotating angle between the upper part 8c of the pressing block and the lower part 8d of the pressing block around the first pin shaft 21 is within a certain range, the design can ensure that the elastic sheet pressing block 8a can not be automatically disassembled after being assembled due to the elastic action of the pressing block spring 9 after being assembled, and can limit the upper part 8c of the pressing block and;

spring grooves are formed in the positions, corresponding to the pressing block spring 9, of the upper portion of the pressing block and the lower portion of the pressing block, the spring grooves are used for installing the pressing block spring 9, meanwhile, the pressing block spring can be prevented from falling off, installation is simpler and more convenient, a spring column is further arranged in each spring groove and used for installing the pressing block spring 9, the pressing block spring 9 is sleeved on the spring column, and installation and fixing effects are enhanced;

a second iron core 72 which extends transversely is arranged on the communicating device 7, and the second iron core 72 is in clamping fit with the vertical fork groove 23; the communication maintaining device 6 is provided with a first iron core 62 which is longitudinally arranged, the first iron core 62 is fixed on the communication maintaining device 6, and the first iron core 62 is in adsorption fit with the movable pressing plate 34;

as shown in fig. 1 and 5, when the buckle 24 slides along the buckle slide way 36 counterclockwise, the locking shift lever 8b can continuously rotate clockwise, so as to avoid the occurrence of the conditions that the movable pressing plate 34 stops or jumps and the like in the process that the buckle 24 slides along the buckle slide way 36 counterclockwise, and the speed of the movable pressing plate 34 and the first iron core 62 for adsorption and fixation is influenced by the stop or jump, and the communication failure of the earth leakage protector is caused by too low speed;

as shown in fig. 1 and 4, when the power is turned 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, the buckle 24 slides upwards along the buckle slideway 36, and the movable pressing plate 34 is driven to continuously move downwards in the process that the buckle 24 slides to abut against the lock catch 33; the movable pressing plate 34 is fixedly adsorbed by the first iron core 62, and 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 pin 3 keep a closed state, thereby realizing circuit communication;

as shown in fig. 1 and 3, when the power supply is disconnected, the connection maintaining device 6 stops working, the locking lever 8b is released, and the latch 33 is disengaged from the buckle 24, so that the elastic piece 5 is disconnected from the pin 3, and the circuit is disconnected.

As shown in fig. 1 and 2, the locking shift lever 8b is further provided with an indication block 42, the indication block 42 is located at the upper part of the locking shift lever 8b, when the power supply is switched on, the indication block 42 moves into the observation window 15 of the protector housing 1, when the power supply is switched off, the indication block 42 moves out of the observation window 15 of the protector housing 1, and the working state of the earth leakage protector can be well indicated through the indication block 42; the color of the indicating block 42 is red, so that the indicating block is more striking and has a good reminding function.

As shown in fig. 1, the elastic sheet 5 includes 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 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 the bottom of the communication maintaining device 6 and is clamped and fixed by the bottom plate 4 and the communication maintaining device 6; the three pins 3 of the zero line, the live line and the PE line are arranged corresponding to the elastic piece 5, the top of each pin 3 is provided with an electric connection contact point 16, the tail end of each elastic piece 5 is provided with an elastic piece contact 51 corresponding to the electric connection contact point 16, and when the elastic piece 5 is pressed down by the pressing rod 22, the elastic piece contact 51 is in contact with the electric connection contact point 16, so that the stability of circuit connection can be well guaranteed, and the problem of circuit connection in the using process is avoided; during the use process, the shrapnel contact 51 on the PE wire shrapnel 54 can be disconnected with the electric connection contact 16 on the pin 3 connected with the PE wire;

the first elastic piece 52 is a live wire elastic piece, the second elastic piece 53 is a neutral wire elastic piece, and the PE wire elastic piece 54 is a ground wire elastic piece.

As shown in fig. 1, the bottoms of the communication maintaining device 6 and the communication device 7 are both provided with a wedge-shaped fastening foot 10, and the communication maintaining device 6 and the communication device 7 are fastened and fixed with the bottom plate 4 through the fastening foot 10 respectively; the installation is simple and convenient, and firm reliable, can directly utilize the mould die sinking, reduction in production cost.

As shown in fig. 1, the communication device 7 further includes a communication coil 71 and a communication spring 73, the communication coil 71 is fixed inside the communication device 7, the communication spring 73 and the second iron core 72 are sequentially and horizontally arranged in an inner cavity of the communication coil 71, when the power supply is turned off, the elastic force of the communication spring 73 pushes out the second iron core 72 and enables the elastic piece pressing block 8a to rotate clockwise, and at this time, the elastic force of the elastic piece 5 enables the elastic piece pressing block 8a to rotate clockwise, so that the pressing rod 22 is lifted and releases the elastic piece 5; when the power is switched on, the communicating coil 71 is electrified, so that 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. 1, the communication maintaining device 6 further includes an L-shaped metal plate 56 and 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 the inner cavity of the maintaining coil 61; one end of the first iron core 62 is fixedly connected with the bottom plate of the metal plate 56, and the side plate of the metal plate 56 and the other end of the first iron core 62 are used for adsorbing and fixing the movable pressing plate 34. As shown in fig. 10, the metal plate 56 is provided in the communication maintaining device 6, the metal plate 56 is L-shaped, one end of the first core 62 is fixed to the bottom of the metal plate 56, and when the movable platen 34 is adsorbed by the communication maintaining device 6, the movable platen 34 is simultaneously brought into contact with the first core 62 and the side plate of the L-shaped metal plate 56, thereby ensuring stable adsorption and fixation of the movable platen 34 by the communication maintaining device 6.

As shown in fig. 5, a bump 41 is further disposed on the pressing rod 22 corresponding to the location where the PE wire spring 54 is pressed, that is, the bump 41 on the pressing rod 22 directly contacts the PE wire spring 54, when the pressing rod 22 is pressed, the bump 41 makes the PE wire spring 54 connect with the pin 3 before the first spring 52 and the second spring 53; when the pressing rod 22 is lifted, the bump 41 disconnects the PE wire spring 54 from the pin 3 after the first spring 52 and the second spring 53, specifically, when the power is turned on, the PE wire spring 54 is first connected to the pin 3, then the first spring 52 and the second spring 53 are connected to the pin 3, and when the power is turned off, the first spring 52 and the second spring 53 are first disconnected from the pin 3, and then the PE wire spring 54 is disconnected from the pin 3.

When the elastic piece 5 is pressed down, the bump 41 at the top of the PE wire elastic piece 54 contacts the PE wire elastic piece 54 first, so that the elastic piece contact 51 on the PE wire elastic piece 54 contacts the electrical connection contact 16 on the pin 3 connected to the PE wire first, and then the elastic piece contact 51 of the live wire elastic piece and the elastic piece contact 51 of the neutral wire elastic piece contact the electrical connection contact 16 on the pin 3, so that in the process of circuit connection, the ground wire is in contact connection first, and the zero live wire is in contact connection again.

When the shrapnel 5 is reset to move upwards, the shrapnel contact 51 of the live wire shrapnel and the shrapnel contact 51 of the zero wire shrapnel are separated from the electric connection contact 16 on the pin 3, then the shrapnel contact 51 on the PE wire shrapnel 54 is separated from the electric connection contact 16 on the pin 3 connected with the PE wire, so that the live wire and the zero wire are separated firstly, and the ground wire is separated again in the power-off work.

In a specific implementation, as shown in fig. 5, the second pin 31 includes a sleeve portion and a rotating shaft center, the sleeve portion is disposed on the locking shift lever 8b, the rotating shaft center is disposed on the second support 64, the sleeve portion is sleeved outside the rotating shaft center, and the locking shift lever 8b can rotate around the rotating shaft center through the sleeve portion; the arrangement of the sleeve portion and the rotating shaft center of the second pin 31 can well solve the problem of abrasion between the second pin 31 and the second support 64 caused by frequent opening and closing actions of the leakage protector in the actual use process of the separated leakage protector; in a specific implementation, the first pin 21 and the first support 43 adopt the same hinge structure, which can effectively ensure the service life of the separated leakage protector of the present invention.

Example 2:

as shown in fig. 9, compared to embodiment 1, the elastic piece 5 includes a first elastic piece 52 and a second elastic piece 53, and the first elastic piece 52 and the second elastic piece 53 are fixed by elastic piece slots 55 disposed at two sides of the communication maintaining device 6; the top of the pin 3 is provided with an electric connection contact point 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 point 16, and when the pressing rod 22 presses the elastic sheet 5 down, the elastic sheet contacts 51 are contacted with the electric connection contact point 16; in this embodiment, the first elastic piece 52 and the second elastic piece 53 correspond to the live wire pin and the neutral wire pin, respectively, and the PE wire cannot be disconnected, and in this embodiment, the PE wire elastic piece 54 is removed, and the PE wire pin is connected to the PE wire through a wire, so that the PE wire is kept in a continuous connection state.

Example 3:

as shown in fig. 7 and 8, compared with embodiment 1, the hinge seat is provided with the pre-hinge device, the pre-hinge device comprises a boss 13 and a clamping groove 14, the boss 13 is located at the hinge position of the upper part 8c of the pressing block, the clamping groove 14 is located at the hinge position of the lower part 8d of the pressing block, and the pre-hinge of the upper part 8c of the pressing block and the lower part 8d of the pressing block is realized through the cooperation of the boss 13 and the clamping groove 14, i.e., under the condition that the first pin shaft 21 is not installed, the installation work of the elastic sheet pressing block 8a can be completed, meanwhile, the coaxiality of the upper part 8c of the pressing block and the lower part 8d of the pressing block can be further ensured through the design.

Example 4:

compared with the embodiment 3, the boss 13 is positioned at the hinge joint of the lower part 8d of the pressing block, and the upper part 8c of the pressing block is pre-hinged with the lower part 8d of the pressing block through the matching of the boss 13 and the clamping groove 14.

Example 5:

as shown in fig. 5 and fig. 6, compared with embodiment 1, the locking shift lever 8b is further provided with a pressing top block 35, the pressing top block 35 is located on one side of the lock catch 33, when the power is turned on, the second iron core 72 drives the elastic piece pressing block 8a to rotate through the vertical fork groove 23, the buckle 24 slides upwards along the buckle slideway 36, and the buckle 24 instantly abuts against the pressing top block 35 after sliding through the lock catch 33, so that the movable pressing plate 34 moves downwards to the lowest position through abutting against the pressing top block 35; that is, through the setting of compressing tightly the kicking block 35, make the hasp 24 can promote the extra certain angle of rotation of movable clamp plate 34, thereby make movable clamp plate 34 can move to the lowest position, when power is put through, the second iron core 72 retracts and can pull the position of rotatory maximum angle with shell fragment briquetting 8a in the twinkling of an eye, hasp 24 passes through hasp slide 36 and hasp 33 in proper order this moment, take place the butt with compressing tightly the kicking block 35 at last, thereby make the hasp 24 can promote the extra certain angle of rotation of movable clamp plate 34 and move to the lowest position after, can guarantee that first iron core 62 adsorbs movable clamp plate 34 under the effect of keeping coil 61.

Example 6:

as shown in fig. 1 and 5, compared with embodiment 1, the locking shift lever 8b is further provided with a limit baffle 11, the limit baffle 11 is disposed at an end of the locking shift lever 8b and located above the second support 64, when the power supply is turned off, the limit baffle 11 can abut against the second support 64 to limit the rotation angle of the locking shift lever 8b, that is, the limit baffle 11 abuts against the top surface of one side of the second support 64, so that after the power supply is turned off, the locking shift lever 8b can only rotate around the second pin 31 within a limited range, and the influence on other parts is prevented.

Example 7:

in embodiment 7, the locking driving lever 8b is further provided with a pressing plate pin hole 63, the pressing plate pin hole 63 is located at the upper portion of the locking driving lever 8b, the movable pressing plate 34 is hinged to the pressing plate pin hole (63) in a matched manner through a pin shaft, that is, the movable pressing plate 34 and the locking driving lever 8b are in a movable hinged state, the movable pressing plate 34 can rotate around the pin shaft within a certain range, the movable pressing plate 34 can be guaranteed to have the largest contact area when in adsorption contact with the first iron core 62, the larger adsorption force is guaranteed, and the service life of the separated leakage protector is effectively prolonged.

The separated leakage protector disclosed by the invention is connected to a circuit to be protected in the actual working and using process, when a power supply is switched on, a communicating coil 71 in a communicating device 7 is electrified, a second iron core 72 retracts, the second iron core 72 is clamped with a vertical fork groove 23 on an elastic sheet pressing block 8a, so that the elastic sheet pressing block 8a is driven to rotate when the second iron core 72 retracts, a pressing rod 22 positioned at the bottom of the elastic sheet pressing block 8a presses down an elastic sheet 5, an electric connecting contact 16 is contacted with an elastic sheet contact 51 to form a passage, and meanwhile, a buckle 24 is abutted with a buckle 33, at the moment, a first iron core 62 adsorbs a movable pressing plate 34 under the action of a maintaining coil 61, so that the movable pressing plate 34 is always in a pressed state, and the leakage protector maintains the circuit to be connected; when the circuit is communicated, the red indicating block 42 on the fork groove pressure lever 14 moves to the position right below the observation window 15, so that the indicating effect is achieved; when the circuit to be protected is subjected to the conditions of electric leakage or power failure and the like, the communication maintaining device 6 stops working, the movable pressing plate 34 loses the downward adsorption acting force of the first iron core 62, the hasp 24 is disengaged from the latch 33, and the elastic piece pressing block 8a does not press the elastic piece 5, so that the electric leakage protector is disconnected and the protection purpose is achieved.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims (16)

1. A split earth-leakage protector, comprising: the protection device comprises a protection device (2), pins (3), a bottom plate (4) and elastic pieces (5), wherein the protection device (2) is arranged on the upper portion of the bottom plate (4), the protection device (2) controls the disconnection and the connection of the separated leakage protector, and the pins (3) are arranged on the lower portion of the bottom plate (4);

the protector device (2) comprises a communication maintaining device (6), a communication device (7) and a locking device (8), wherein the locking device (8) is arranged between the communication maintaining device (6) and the communication device (7) and is used for controlling the opening and closing of the elastic sheet (5) and the plug pin (3);

the locking device (8) comprises an elastic piece 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 elastic piece pressing block (8a) is movably hinged with a first support (43) arranged in the middle of the bottom plate (4) 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 (72) extending transversely is arranged on the communication device (7), 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) 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 power supply is switched on, the second iron core (72) 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 fixedly adsorbed 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 pin (3) keep a connection state, thereby realizing circuit communication;

when the power supply is disconnected, 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) and the pin (3) are disconnected, and further the circuit is broken.

2. The separated earth-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 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 the bottom of the communication maintaining device (6) and is clamped and fixed by the bottom plate (4) and the communication maintaining device (6);

the top of the pin (3) is provided with an electric connection contact point (16), the end parts 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 electric connection contact point (16), when the pressing rod (22) presses down the elastic sheet (5), the elastic sheet contacts (51) are in contact with the electric connection contact point (16), and the elastic sheet contacts (51) on the first elastic sheet (52), the second elastic sheet (53) and the PE wire elastic sheet (54) can be disconnected from the electric connection contact point (16).

3. The separated earth-leakage protector according to claim 1, 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 upper pressing block portion (8c) and the lower pressing block portion (8d) rotate around the first pin (21) as an axis.

4. A split earth-leakage protector according to claim 1, characterized in that the bottom of the communication maintaining device (6) and the bottom of the communication device (7) are provided with wedge-shaped fastening pins (10), and the communication maintaining device (6) and the communication device (7) are fastened and fixed to the bottom plate (4) through the fastening pins (10), respectively.

5. A split earth-leakage protector according to claim 1, characterized in that said communicating means (7) further comprises a communicating coil (71) and a communicating spring (73), said communicating coil (71) being fixed inside said communicating means (7), said communicating spring (73) and said second core (72) being horizontally disposed in the inner cavity of said communicating coil (71).

6. The separated earth-leakage protector according to claim 1, characterized in that said communication maintaining means (6) further comprises an L-shaped metal plate (56) and a maintaining coil (61), said maintaining coil (61) is fixed inside said communication maintaining means (6), said first iron core (62) is vertically fixed in the inner cavity of said maintaining coil (61); one end of the first iron core (62) is fixedly connected with the bottom plate of the metal plate (56), and the side plate of the metal plate (56) and the other end of the first iron core (62) are used for adsorbing and fixing the movable pressing plate (34).

7. A split earth-leakage protector according to claim 1, characterized in that the second pin (31) comprises a sleeve portion and a pivot axis, the sleeve portion is arranged on the locking lever (8b), the pivot axis is arranged on the second seat (64), the sleeve portion is sleeved outside the pivot axis, and the locking lever (8b) is rotatable around the pivot axis by the sleeve portion.

8. The separated leakage protector according to claim 3, wherein the hinge seat is provided with a pre-hinge device, the pre-hinge device comprises a boss (13) and a clamping groove (14), the boss (13) is located at the hinge position of the upper pressing block part (8c), the clamping groove (14) is located at the hinge position of the lower pressing block part (8d), and the pre-hinge of the upper pressing block part (8c) and the lower pressing block part (8d) is realized through the cooperation of the boss (13) and the clamping groove (14).

9. The separated leakage protector according to claim 3, wherein the hinge seat is provided with a pre-hinge device, the pre-hinge device comprises a boss (13) and a clamping groove (14), the clamping groove (14) is located at the hinge position of the upper pressing block part (8c), the boss (13) is located at the hinge position of the lower pressing block part (8d), and the pre-hinge of the upper pressing block part (8c) and the lower pressing block part (8d) is realized through the cooperation of the boss (13) and the clamping groove (14).

10. The separated earth-leakage protector according to claim 1, wherein a pressing top block (35) is further disposed on the locking lever (8b), the pressing top block (35) is disposed on one side of the latch (33), when the power is turned on, the second iron core (72) drives the spring plate pressing block (8a) to rotate through the vertical fork slot (23), the buckle (24) slides upwards along the buckle slide way (36), and the buckle (24) slides through the latch (33) and then is instantaneously abutted against the pressing top block (35), and the movable pressing plate (34) moves downwards through abutment against the pressing top block (35) to be adsorbed and fixed by the first iron core (62).

11. The separated earth-leakage protector according to claim 1, characterized in that the upper part (8c) of the pressing block and the lower part (8d) of the pressing block are provided with spring grooves corresponding to the pressing block spring (9), and spring posts are arranged in the spring grooves, and the spring grooves and the spring posts are used for mounting the pressing block spring (9).

12. The separated earth-leakage protector according to claim 1, wherein said locking lever (8b) is further provided with an indication block (42), said indication block (42) is located at an upper portion of said locking lever (8b), said indication block (42) moves into the observation window (15) of the protector housing (1) when the power is on, said indication block (42) moves out of the observation window (15) of the protector housing (1) when the power is off, and said indication block (42) is red in color.

13. The separated earth-leakage protector according to claim 1, wherein a limit stop (11) is further disposed on the locking deflector (8b), the limit stop (11) is disposed at an end of the locking deflector (8b) and located at an upper portion of the second seat (64), and when the power is turned off, the limit stop (11) can abut against the second seat (64) to limit a rotation angle of the locking deflector (8 b).

14. The separated earth-leakage protector according to claim 1, 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 (55) disposed at two sides of the communication maintaining device (6);

the top of the pin (3) is provided with an electric connection contact point (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 point (16), and when the pressing rod (22) presses down the elastic sheet (5), the elastic sheet contacts (51) are contacted with the electric connection contact point (16); the elastic sheet contacts (51) on the first elastic sheet (52) and the second elastic sheet (53) can be disconnected with the electric connection contact points (16), and the PE wire can not be disconnected and keeps connected.

15. The separated earth leakage protector according to claim 2, wherein a protrusion (41) is disposed on the pressing rod (22) corresponding to the PE wire spring (54), and when the pressing rod (22) is pressed down, the protrusion (41) makes the PE wire spring (54) connect with the pin (3) before the first spring (52) and the second spring (53); when the pressure lever (22) is lifted, the lug (41) enables the PE wire elastic sheet (54) to be disconnected from the pin (3) after the first elastic sheet (52) and the second elastic sheet (53).

16. The separated earth-leakage protector according to claim 6, wherein said locking deflector rod (8b) is further provided with a pressing plate pin hole (63), and said movable pressing plate (34) is hinged to said pressing plate pin hole (63) by a pin.

Images