CN208908208U - A kind of earth leakage protective device - Google Patents

Abstract

The utility model discloses a kind of earth leakage protective devices, are related to electrical equipment protection technique field, comprising: protector, pin, bottom plate and elastic slice；Protector includes that connection maintains device, communication apparatus and locking device；Locking device includes elastic slice briquetting and locking driving lever；It locks driving lever and is equipped with lock, horizontal fork pockets and hasp slideway；Elastic slice briquetting is equipped with compression bar, hasp and perpendicular fork pockets；Communication apparatus is equipped with the second iron core crossed out, and the second iron core and perpendicular fork pockets are engaged by clamping；Connection maintains device to be equipped with the first longitudinally projecting iron core, and the first iron core and horizontal fork pockets are engaged by clamping, and elastic slice briquetting includes briquetting top and briquetting lower part；The utility model can be in the case where maintaining coil failure, through the matching relationship between mechanical structure, so that earth leakage protective device is breaking；The compression bar of briquetting lower part can be made to apply stable pressing force to elastic slice using briquetting spring, by compressing the setting of jacking block, the first iron core be enabled to move to extreme lower position.

Description

A kind of earth leakage protective device

Technical field

The utility model relates to electrical equipment protection technique field, especially a kind of earth leakage protective device.

Background technique

Earth leakage protective device equipment occur leak current fault or need to have fatal risk the person electric shock protect when, Main line can be disconnected in time, to be widely used；Earth leakage protective device is primarily used to that electric leakage event occurs in equipment Personal electrical shock protection when barrier and to there is fatal risk has overload and short-circuit protection function, can be used to protection circuit or electricity The overload and short circuit of motivation can be also used as the infrequently conversion starting of route under normal circumstances；Existing earth leakage protective In the operating condition in case of powering off, earth leakage protective device only leaks electricity in the case where energization and protects still in closed state device Protecting device could open circuit.

A kind of earth leakage protective device as disclosed in Chinese invention patent CN 106602508A, is connected to power input Between load outputs, the earth leakage protective device includes: insulation shell comprising upper cover and pedestal simultaneously have connection electric wire Dismountable input terminal and output end；Switch block is set to the in the insulation shell and including connection phase line access The third switch of one switch, the second switch of connection zero curve access and connection ground paths；Control assembly is set to described In insulation shell and including reset assembly, test assembly and cartridge assemblies, the cartridge assemblies include circuit board and are arranged in electricity Magnetic ring component and trip assembley therefor on the plate of road；The earth leakage protective device security performance of the patent of invention is not high.

Utility model content

One, technical problems to be solved

The utility model provides a kind of earth leakage protective device for drawbacks described above present in the prior art, solves existing The problem that only earth leakage protective device could be breaking in the case where energization present in earth leakage protective device.

Two, technical solution

In order to solve the above technical problems, the utility model provides a kind of earth leakage protective device, comprising: protector, pin, Bottom plate and elastic slice, on bottom plate top, protector controls the opening and closing of earth leakage protective device for protector setting, and pin setting exists Bottom plate lower part；

Protector includes that connection maintains device, communication apparatus and locking device, and locking device setting is maintained in connection Disconnection and closure between device and communication apparatus and for controlling elastic slice and pin；

Locking device includes elastic slice briquetting and locking driving lever, and locking driving lever is by the second pin shaft and is arranged on communication apparatus The second support be movably hinged, elastic slice briquetting by the first pin shaft and setting in the soleplate between position the first support moveable hinge It connects；It locks driving lever and is equipped with lock, horizontal fork pockets and hasp slideway；Elastic slice briquetting includes briquetting top and briquetting lower part, on briquetting Portion is equipped with hasp and perpendicular fork pockets, and briquetting lower part is equipped with compression bar, and briquetting top is hinged by the first pin shaft with briquetting lower part, pressure The briquetting spring of compressive state is equipped between block top and briquetting lower part, when compression bar is in elastic slice abuts state, briquetting bullet The elastic force of spring may make compression bar to keep stabilising force to elastic slice, and hasp with snap fit for abutting；

Communication apparatus is equipped with the second iron core crossed out, and the second iron core and perpendicular fork pockets are engaged by clamping；Connection maintains dress It sets and is equipped with the first longitudinally projecting iron core, the first iron core and horizontal fork pockets are engaged by clamping；

When the power is turned on, the second iron core is rotated by perpendicular fork pockets band spring plate briquetting, so that being located at elastic slice briquetting bottom Compression bar elastic slice is pushed, while hasp is along hasp slideway upward sliding, and slides into and latch the process abutted in hasp In, horizontal fork pockets drives the first iron core Continued downward motion；Connection maintains device to fix for that will lock driving lever position, so that elastic slice Briquetting keeps pressed status, and elastic slice is kept closed with pin, and then realizes circuit communication；

When power supply disconnects, connection maintains device to stop working, and locking driving lever is released, and lock is threaded off with hasp, so that Elastic slice and pin disconnect, and then realize circuit breaker.

Wherein, it is equipped with hinged seat at briquetting top and briquetting lower hinge, the first pin shaft is arranged in hinged seat, hinged seat On be additionally provided with limited block, when limited block for controlling between briquetting top and briquetting lower part using the first pin shaft is axle center rotation Subtended angle.

Wherein, elastic slice includes the first elastic slice, the second elastic slice and PE line elastic slice, and the first elastic slice and the second elastic slice are existed by setting Connection maintain device two sides elastic slice card slot fix, PE line elastic slice pass through connection maintain bottom of device and by bottom plate be connected to maintenance Device is fixedly clamped；Electric connection contacts are equipped at the top of pin, elastic slice end is equipped with shrapnel contact corresponding with electric connection contacts, When compression bar depresses elastic slice, shrapnel contact is in contact with electric connection contacts；On first elastic slice, the second elastic slice and PE line elastic slice Shrapnel contact can be disconnected with electric connection contacts.

Wherein, elastic slice includes the first elastic slice and the second elastic slice, and the first elastic slice and the second elastic slice are maintained by setting in connection The elastic slice card slot of device two sides is fixed；Be equipped with electric connection contacts at the top of pin, the first elastic slice and the second elastic slice end be designed with The corresponding shrapnel contact of electric connection contacts, when compression bar depresses elastic slice, shrapnel contact is in contact with electric connection contacts；First Shrapnel contact on elastic slice and the second elastic slice can be disconnected with electric connection contacts, and PE line can not be disconnected and be remained up.

Wherein, connection maintains device and communication apparatus bottom to be designed with the button foot of wedge shape, and connection maintains device and be connected to fill It sets and is fixed respectively by button foot with bottom plate snapping.

Wherein, communication apparatus further includes that connection coil is fixed on inside communication apparatus, is connected to spring, connection coil is connected to Spring and the second iron core are successively horizontally set on connection coil inner cavity.

Wherein, it further includes maintaining coil and third iron core that connection, which maintains device, maintains coil to be fixed on connection and maintains device Inside, third iron core and the first iron core, which are vertically arranged in, maintains coil inner cavity；Third iron core one end be connected to maintain bottom of device It is fixedly connected, the third iron core other end is for adsorbing the first iron core.

Wherein, the second pin shaft includes sleeve part and the shaft heart, and sleeve part setting is on locking driving lever, and the setting of the shaft heart is the On two supports, sleeve part is socketed in outside the shaft heart, and lock driving lever can be rotated by sleeve part axle center rotation.

Wherein, hinged seat is equipped with pre- articulated mounting, and pre- articulated mounting includes boss and clamping groove, and boss is located at briquetting The hinged place on top, clamping groove are located at briquetting lower hinge, by the cooperation of boss and clamping groove, realize briquetting top It is pre- hinged with briquetting lower part.

Wherein, hinged seat is equipped with pre- articulated mounting, and pre- articulated mounting includes boss and clamping groove, and clamping groove is located at The hinged place on briquetting top, boss are located at briquetting lower hinge, by the cooperation of boss and clamping groove, realize briquetting top It is pre- hinged with briquetting lower part.

Wherein, it locks and is additionally provided with compression jacking block on driving lever, compress jacking block and be located at lock side, when the power is turned on, second Iron core is rotated by perpendicular fork pockets band spring plate briquetting, and hasp is along hasp slideway upward sliding, and after hasp slides past lock It is instantaneously abutted with compression jacking block, by abutting with compression jacking block so that horizontal fork pockets drives the first iron core to move downwardly to lowest order It sets.

Wherein, it locks and is additionally provided with instruction block on driving lever, instruction block is located at locking driving lever top, when the power is turned on, instruction Block moves in the watch window of protector housing, and when power supply disconnects, instruction block is removed from the watch window of protector housing, Indicate that block color is red.

Wherein, it locks and is additionally provided with postive stop baffle on driving lever, postive stop baffle setting is in locking driving lever end and is located at second Holder top, when power supply disconnects, postive stop baffle can be abutted with the second support to which the rotation angle to locking driving lever limits Position.

Wherein, it is corresponded on compression bar and is equipped with convex block at PE line elastic slice, when compression bar pressure, convex block makes PE line elastic slice prior to the One elastic slice and the second elastic slice and pin are connected；When compression bar lifts, convex block makes after PE line elastic slice in the first elastic slice and the second bullet Piece and pin disconnect.

Three, beneficial effect

Compared with prior art, a kind of earth leakage protective device provided by the utility model, can be in the feelings for maintaining coil failure Under condition, by the matching relationship between mechanical structure, so that earth leakage protective device is breaking, the safety in use process is substantially increased Property；Simultaneously by the design of hasp slideway and spring so that the earth leakage protective device reliability of the utility model is stronger, further plus Strong security energy；

It combines to form elastic slice briquetting by way of connecting with briquetting lower part briquetting spring by using briquetting top, so that Elastic slice briquetting does not carry out during compressing elastic slice in the mechanical structure for relying solely on fixed limit, by using briquetting spring The compression bar of briquetting lower part can be made to apply stable pressing force to elastic slice, and ground due to long-time using machinery is generated subsequent After damage, when can also make to rotate using the first pin shaft as axle center between briquetting top and briquetting lower part by the elastic force of briquetting spring Subtended angle become larger, to guarantee pressing force of the compression bar to elastic slice of briquetting lower part, so that electrical connection stabilization can in earth leakage protective device It leans on；

And by the setting for compressing jacking block, enable hasp that horizontal fork pockets is pushed additionally to rotate by a certain angle, to make Extreme lower position can be moved to by obtaining the first iron core；

Further, the restriction of the rotation angle range to locking driving lever is realized by the position-limiting action of postive stop baffle.

Detailed description of the invention

Fig. 1 is the explosive view of the utility model earth leakage protective device；

Fig. 2 is the perspective view of the utility model earth leakage protective device；

Fig. 3 is the power-off state structure chart of the utility model earth leakage protective device；

Fig. 4 is the power on state structure chart of the utility model earth leakage protective device；

Fig. 5 is the locking device structure figure of the utility model earth leakage protective device；

Fig. 6 is the locking deflector rod structure figure of the utility model earth leakage protective device；

Fig. 7 is elastic slice briquette structure Fig. 1 of the utility model earth leakage protective device；

Fig. 8 is elastic slice briquette structure Fig. 2 of the utility model earth leakage protective device；

Fig. 9 is 2 structure chart of the utility model earth leakage protective device embodiment；

In figure: 1 is protector housing；2 be protector；3 be pin；4 be bottom plate；5 be elastic slice；6 maintain for connection Device；7 be communication apparatus；8 be locking device；8a is elastic slice briquetting；8b is locking driving lever；8c is briquetting top；8d is briquetting Lower part；9 be briquetting spring；10 be button foot；11 be postive stop baffle；12 be limited block；13 be boss；14 be clamping groove；15 For watch window；16 be electric connection contacts；21 be the first pin shaft；22 be compression bar；23 be perpendicular fork pockets；24 be hasp；31 be second Pin shaft；33 be lock；34 be horizontal fork pockets；35 be compression jacking block；36 be hasp slideway；41 be convex block；42 be instruction block；43 be One support；51 be shrapnel contact；52 be the first elastic slice；53 be the second elastic slice；54 be PE line elastic slice；55 be elastic slice card slot；61 are Maintain coil；62 be the first iron core；63 be third iron core；64 be the second support；71 be connection coil；72 be the second iron core；73 To be connected to spring.

Specific embodiment

With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below Embodiment cannot be used to limit the scope of the utility model for illustrating the utility model.

Embodiment 1:

A kind of earth leakage protective device of the utility model embodiment, as depicted in figs. 1 and 2, comprising: protector housing 1, protection Device device 2, pin 3, bottom plate 4 and elastic slice 5, the setting of protector 2 control earth leakage protective in 4 top of bottom plate, protector 2 The opening and closing of device, pin 3 are arranged in 4 lower part of bottom plate；

Protector 2 includes that connection maintains device 6, communication apparatus 7 and locking device 8, and the setting of locking device 8 is being connected to Maintain the disconnection and closure between device 6 and communication apparatus 7 and for controlling elastic slice 5 Yu pin 3；

Locking device 8 includes that elastic slice briquetting 8a and locking driving lever 8b, locking driving lever 8b are existed by the second pin shaft 31 with setting The second support 64 on communication apparatus 7 is movably hinged, and elastic slice briquetting 8a is by the first pin shaft 21 with setting in 4 middle position of bottom plate The first support 43 be movably hinged；It locks driving lever 8b and is equipped with lock 33, horizontal fork pockets 34 and hasp slideway 36；Elastic slice briquetting 8a packet Briquetting top 8c and briquetting lower part 8d are included, briquetting top 8c is equipped with hasp 24 and perpendicular fork pockets 23, and briquetting lower part 8d is equipped with pressure Bar 22, briquetting top 8c and briquetting lower part 8d are hinged by the first pin shaft 21, are equipped between briquetting top 8c and briquetting lower part 8d The briquetting spring 9 of compressive state, when compression bar 22 is in elastic slice 5 abuts state, the elastic force of briquetting spring 9 may make compression bar 22 Stabilising force is kept to elastic slice 5, hasp 24 is used to abut with the cooperation of lock 33；It, can be by according to the different demands of client The position of one support 43 and the second support 64 is adjusted；

As shown in Fig. 6, Fig. 7 and Fig. 8, hinged seat, the first pin shaft are respectively equipped at briquetting top and briquetting lower hinge 21 are arranged in hinged seat, to realize that briquetting top and briquetting lower part can be rotated around the first pin shaft 21, also set on hinged seat There is limited block 12, limited block 12 is for controlling between briquetting top 8c and briquetting lower part 8d with the first pin shaft 21 as axle center rotation Subtended angle when turning, i.e., so that the angle that rotates around the first pin shaft 21 of briquetting top 8c and briquetting lower part 8d within limits, The design simultaneously can also make elastic slice briquetting 8a not make its assembling because the elastic force of briquetting spring 9 acts on after finishing assembly It is automatic afterwards to disintegrate, it can briquetting top 8c and briquetting lower part 8d are limited；

On briquetting top, the position of briquetting spring 9 corresponding with briquetting lower part is designed with spring groove, and spring groove is for installing pressure Block spring 9, while also can guarantee that briquetting spring will not fall off, simpler convenience is installed, further in spring groove also Equipped with spring stack, for installing briquetting spring 9, briquetting spring 9 is sleeved on spring stack spring stack, reinforces installation fixed effect；

The second iron core 72 crossed out is equipped on communication apparatus 7, the second iron core 72 is engaged by clamping with perpendicular fork pockets 23；Even Logical that device 6 is maintained to be equipped with the first longitudinally projecting iron core 62, the first iron core 62 is engaged by clamping with horizontal fork pockets 34；

As shown in Figure 1 and Figure 5, locking driving lever 8b can be made to hold when sliding counterclockwise along hasp slideway 36 in hasp 24 It is continuous to rotate clockwise, avoid the occurrence of horizontal fork pockets 34 pause being generated along the sliding process counterclockwise of hasp slideway 36 in hasp 24 or Situations such as bounce, will affect the speed that horizontal fork pockets 34 subdues the first iron core 62 because pausing or beating, and speed slowly can excessively Lead to earth leakage protective device connection failure；

As shown in Figure 1 and Figure 4, when the power is turned on, the second iron core 72 is rotated by perpendicular fork pockets 23 with spring plate briquetting 8a, So that the compression bar 22 for being located at the bottom elastic slice briquetting 8a pushes elastic slice 5, while hasp 24 is along 36 upward sliding of hasp slideway, and During hasp 24 is slided into and abutted with lock 33, horizontal fork pockets 34 drives 62 Continued downward motion of the first iron core；Connection dimension It holds device 6 to fix for the position driving lever 8b will to be locked, so that elastic slice briquetting 8a keeps pressed status, and makes elastic slice 5 and pin 3 It is kept closed, and then realizes circuit communication；

As shown in figures 1 and 3, when power supply disconnects, connection maintains device 6 to stop working, and locking driving lever 8b is released, and locks Button 33 is threaded off with hasp 24, so that elastic slice 5 and pin 3 disconnect, and then realizes circuit breaker.

As depicted in figs. 1 and 2, it locks and is additionally provided with instruction block 42 on driving lever 8b, instruction block 42 is located at the locking top driving lever 8b, When the power is turned on, instruction block 42 move in the watch window 15 of protector housing 1, when power supply disconnect when, instruction block 42 from The watch window 15 of protector housing 1 removes, by indicating that block 42 can show the working condition of earth leakage protective device well；Wherein Indicate that 42 color of block is red, it is more eye-catching, there is good reminding effect.

As shown in Figure 1, elastic slice 5 includes the first elastic slice 52, the second elastic slice 53 and PE line elastic slice 54, the first elastic slice 52 and second Elastic slice 53, which passes through to be arranged in be connected to, maintains the elastic slice card slot 55 of 6 two sides of device fixed, and PE line elastic slice 54 passes through connection maintenance device 6 Bottom is simultaneously fixedly clamped by bottom plate 4 with maintenance device 6 is connected to；It is correspondingly provided with three zero curve, firewire and PE line pins 3 with elastic slice 5, Electric connection contacts 16 are equipped at the top of pin 3,5 end of elastic slice is equipped with shrapnel contact 51 corresponding with electric connection contacts 16, works as pressure When bar 22 depresses elastic slice 5, shrapnel contact 51 is in contact with electric connection contacts 16, can guarantee the stabilization of circuit connection well Property, avoid occurring circuit connection problem in use process；In use, the shrapnel contact 51 on PE line elastic slice 54 can with connect Electric connection contacts 16 on the pin 3 of PE line disconnect；

Above-mentioned first elastic slice 52 is firewire elastic slice, the second elastic slice 53 is zero curve elastic slice, PE line elastic slice 54 is ground wire elastic slice.

As shown in Figure 1, connection maintains device 6 and 7 bottom of communication apparatus to be designed with the button foot 10 of wedge shape, it is connected to and maintains device 6 and communication apparatus 7 fixed respectively by button foot 10 with 4 snapping of bottom plate；Install it is simple and convenient and solid and reliable, can be straight It connects and is opened using mold, reduce production cost.

As shown in Figure 1, communication apparatus 7 further includes being connected to coil 71 to be fixed on connection with spring 73, connection coil 71 is connected to Inside device 7, connection spring 73 is successively horizontally set on the second iron core 72 is connected to 71 inner cavity of coil, when power supply disconnects, even Second iron core 72 is ejected and rotates clockwise elastic slice briquetting 8a by the elastic force of logical spring 73, and the elastic force of elastic slice 5 equally makes at this time It obtains elastic slice briquetting 8a to rotate clockwise, and then compression bar 22 is made to lift simultaneously release elastic sheet 5；When the power is turned on, connection coil 71 is logical Electricity, so that the second iron core 72 is rotated by the clamping with perpendicular fork pockets 23 with spring plate briquetting 8a counterclockwise.

As shown in Figure 1, it further includes maintaining coil 61 and third iron core 63 that connection, which maintains device 6, coil 61 is maintained to be fixed on Connection maintains inside device 6, and third iron core 63 and the first iron core 62 are vertically arranged in and maintain 61 inner cavity of coil；Third iron core 63 1 End is fixedly connected with maintenance 6 bottom of device is connected to, and 63 other end of third iron core is for adsorbing the first iron core 62；When power supply is connected When, it maintains coil 61 to be powered, adsorbs the first iron core 62 by third iron core 63, so that hasp 24 keeps abutting shape with lock 33 State, earth leakage protective device are in connected state；When disconnecting power supply, coil 61 is maintained to power off, the first iron core 62 is released, so that lock Button 33 is threaded off with hasp 24, and elastic slice 5 is disconnected with pin 3, and then realizes circuit breaker.

As shown in figure 5, the place of corresponding pressing PE line elastic slice 54 is additionally provided with convex block 41 on compression bar 22, i.e. compression bar 22 is convex Block 41 is directly contacted with PE line elastic slice 54, and when compression bar 22 is depressed, convex block 41 makes PE line elastic slice 54 prior to 52 He of the first elastic slice Second elastic slice 53 is connected with pin 3；When compression bar 22 lifts, convex block 41 makes after PE line elastic slice 54 in the first elastic slice 52 and second Elastic slice 53 and pin 3 disconnect, and specifically, when power supply is connected, PE line elastic slice 54 is connected with pin 3 first, then the first bullet Piece 52 and the second elastic slice 53 can just be connected with pin 3, when power supply disconnects, the first elastic slice 52 and the second elastic slice 53 first with pin 3 disconnect, and then 54 ability of PE line elastic slice is disconnected with pin 3.

When elastic slice 5 pushes, the convex block 41 at 54 top of PE line elastic slice can first contact PE line elastic slice 54, make PE line elastic slice 54 upper shrapnel contact 51 is first contacted with the electric connection contacts 16 on the pin 3 for connecing PE line, followed by the elastic slice of firewire elastic slice The shrapnel contact 51 of contact 51 and zero curve elastic slice is contacted with the electric connection contacts 16 on pin 3, therefore the process connected in circuit In, ground wire first connects, and zero firewire connects again.

When elastic slice 5 reset move up when, the shrapnel contact 51 of firewire elastic slice and the shrapnel contact 51 of zero curve elastic slice First separated with the electric connection contacts 16 on pin 3, be then again PE line elastic slice 54 upper shrapnel contact 51 with connect PE line insert It is separated after electric connection contacts 16 on foot 3, therefore in power-off work, zero firewire first separates, and ground wire separates again.

In specific implementation, as shown in figure 5, the second pin shaft 31 includes sleeve part and the shaft heart, sleeve part setting is being locked On driving lever 8b, the shaft heart is arranged on the second support 64, and sleeve part is socketed in outside the shaft heart, and locks driving lever 8b and can pass through Sleeve part rotate axle center rotation；The setting of the sleeve part and the shaft heart of the second pin shaft 31 can solve the utility model herein Earth leakage protective device in actual use, in fact it could happen that due to earth leakage protective device opening and closing movement it is frequent caused by second The problem of being worn between pin shaft 31 and the second support 64；In specific implementation, the first pin shaft 21 is identical as 43 use of the first support Articulated structure, can effectively guarantee the service life of the utility model earth leakage protective device.

Embodiment 2:

As shown in figure 9, elastic slice 5 includes the first elastic slice 52 and the second elastic slice 53, the first elastic slice for compared to embodiment 1 52 maintain the elastic slice card slot 55 of 6 two sides of device fixed with the second elastic slice 53 by being arranged in be connected to；Electrical connection is equipped at the top of pin 3 Contact 16, the first elastic slice 52 and 53 end of the second elastic slice are designed with shrapnel contact 51 corresponding with electric connection contacts 16, work as pressure When bar 22 depresses elastic slice 5, shrapnel contact 51 is in contact with electric connection contacts 16；In the present embodiment, the first elastic slice 52 and second Elastic slice 53 respectively corresponds live prong and zero line pin, and PE line can not disconnect, and in this embodiment, removes PE line elastic slice 54 Setting, PE line pin is connected to PE line by conducting wire, make PE line keep continual communication state.

Embodiment 3:

As shown in Figure 7 and Figure 8, compared to embodiment 1, hinged seat is equipped with pre- articulated mounting, and pre- articulated mounting includes convex Platform 13 and clamping groove 14, boss 13 are located at the hinged place of briquetting top 8c, and clamping groove 14 is located at the briquetting lower part hinged place 8d, It by the cooperation of boss 13 and clamping groove 14, realizes that briquetting top 8c's and briquetting lower part 8d is pre- hinged, i.e., is not installing the In the case where one pin shaft 21, the installment work of elastic slice briquetting 8a can be also completed, while can be further ensured that by the design The alignment of briquetting top 8c and briquetting lower part 8d can reduce abrasion, and the simpler convenience of integral installation.

Embodiment 4:

Compared to embodiment 3, boss 13 is located at the briquetting lower part hinged place 8d, passes through matching for boss 13 and clamping groove 14 It closes, realizes that briquetting top 8c's and briquetting lower part 8d is pre- hinged.

Embodiment 5:

As shown in Figure 5 and Figure 6, it compared to embodiment 1, locks and is additionally provided with compression jacking block 35 on driving lever 8b, compress jacking block 35 Positioned at 33 sides are latched, when the power is turned on, the second iron core 72 is rotated by perpendicular fork pockets 23 with spring plate briquetting 8a, 24 edge of hasp 36 upward sliding of hasp slideway, and hasp 24 slide past lock 33 after with compress jacking block 35 instantaneously abut, by with pressure Block 35 is pressed closer to abut so that horizontal fork pockets 34 drives the first iron core 62 to move downwardly to extreme lower position；I.e. by compressing setting for jacking block 35 It sets, enables hasp 24 that horizontal fork pockets 34 is pushed additionally to rotate by a certain angle, so that the first iron core 62 can move to most Lower position, when power supply is connected, the second iron core 72 retraction moment can be drawn elastic slice briquetting 8a to the position for being rotated up to angle, Hasp 24 is successively by hasp slideway 36 and lock 33 at this time, finally with compress jacking block 35 and abut, enable hasp 24 After pushing horizontal fork pockets 34 additionally to rotate by a certain angle and can move to extreme lower position to the first iron core 62, it can guarantee the first iron Core 62 is adsorbed under the action of maintaining coil 61.

Embodiment 6:

As shown in Figure 1 and Figure 5, compared to embodiment 1, postive stop baffle 11, postive stop baffle are additionally provided on locking driving lever 8b 11 settings are in the locking end driving lever 8b and are located at 64 top of the second support, and when power supply disconnects, postive stop baffle 11 can be with second To which the rotation angle to locking driving lever 8b limits, i.e., on one side by postive stop baffle 11 and the second support 64 support 64 abuts Top surface abut so that power supply disconnection after, locking driving lever 8b be only capable of in the range of restriction around the second pin shaft 31 rotate, prevent Other parts are had an impact.

The earth leakage protective device is accessed institute in real work use process by the earth leakage protective device of the utility model patent It needs in circuit to be protected, when the power is turned on, the connection coil 71 in communication apparatus 7 is powered, the second iron core 72 retraction, due to Perpendicular fork pockets 23 on second iron core 72 and elastic slice briquetting 8a is clamped, so that band spring plate briquetting 8a when the second iron core 72 bounces back Rotation, the compression bar 22 positioned at the bottom elastic slice briquetting 8a pushes elastic slice 5, so that electric connection contacts 16 are contacted with shrapnel contact 51, Access is formed, while hasp 24 is formed with lock 33 and is abutted, at this time the first iron core 62 quilt under the action of maintaining coil 61 Absorption, so that horizontal fork pockets 34 is in the state being depressed always, so that earth leakage protective device holding circuit is connected to；Connect in circuit When logical, the red instruction block 42 on fork pockets compression bar 14 is moved to immediately below watch window 15, plays the function and effect of instruction；When When need circuit to be protected encounters electric leakage or power-off, connection maintains device 6 to stop working, and horizontal fork pockets 34 loses the The downward pressure of one iron core 62,33 tripping of hasp 24 and lock, elastic slice briquetting 8a is not pushed by elastic slice 5, so that electric leakage is protected Shield device disconnects the purpose for playing protection.

Above are merely preferred embodiments of the utility model, it is noted that for the ordinary skill people of the art Member for, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these improve and Retouching also should be regarded as the protection scope of the utility model.

Claims (15)

1. a kind of earth leakage protective device, which is characterized in that the earth leakage protective device includes: protector (2), pin (3), bottom plate (4) with elastic slice (5), the protector (2) setting is on the bottom plate (4) top, described in protector (2) control The disconnection and closure of earth leakage protective device, the pin (3) are arranged in the bottom plate (4) lower part；

The protector (2) includes that connection maintains device (6), communication apparatus (7) and locking device (8), the locking dress (8) setting is set to maintain in the connection between device (6) and the communication apparatus (7) and for controlling the elastic slice (5) and institute State the disconnection and closure of pin (3)；

The locking device (8) includes elastic slice briquetting (8a) and locking driving lever (8b), and the locking driving lever (8b) passes through the second pin It axis (31) and the second support (64) on the communication apparatus (7) is set is movably hinged, the elastic slice briquetting (8a) passes through the The first support (43) of one pin shaft (21) and setting in bottom plate (4) middle position is movably hinged；It is set on the locking driving lever (8b) There are lock (33), horizontal fork pockets (34) and hasp slideway (36)；

The elastic slice briquetting (8a) includes briquetting top (8c) and briquetting lower part (8d), and the briquetting top (8c) is equipped with hasp (24) and perpendicular fork pockets (23), the briquetting lower part (8d) are equipped with compression bar (22), and briquetting top (8c) and briquetting lower part (8d) is logical It crosses the first pin shaft (21) hingedly, the briquetting spring of compressive state is equipped between the briquetting top (8c) and briquetting lower part (8d) (9), when the compression bar (22) is in the elastic slice (5) abuts state, the elastic force of the briquetting spring (9) may make described Compression bar (22) keeps stabilising force to the elastic slice (5), and the hasp (24) is used to abut with the lock (33) cooperation；

The communication apparatus (7) is equipped with the second iron core (72) crossed out, second iron core (72) and the perpendicular fork pockets (23) it is engaged by clamping；The connection maintains device (6) to be equipped with longitudinally projecting the first iron core (62), first iron core (62) It is engaged by clamping with the horizontal fork pockets (34)；

When the power is turned on, second iron core (72) drives the elastic slice briquetting (8a) to rotate by perpendicular fork pockets (23), so that Compression bar (22) positioned at elastic slice briquetting (8a) bottom pushes elastic slice (5), while the hasp (24) is sliding along the hasp Road (36) upward sliding, and during the hasp (24) is slided into and abutted with the lock (33), the horizontal fork pockets (34) the first iron core (62) Continued downward motion is driven；The connection maintains device (6) to be used for the locking driving lever The position (8b) is fixed, so that the elastic slice briquetting (8a) keeps pressed status, and makes the elastic slice (5) and the pin (3) It remains turned on, and then realizes circuit communication；

When power supply disconnects, the connection maintains device (6) to stop working, and the locking driving lever (8b) is released, the lock (33) it threads off with the hasp (24), so that the elastic slice (5) and the pin (3) disconnect, and then realizes circuit breaker.

2. earth leakage protective device as described in claim 1, which is characterized in that the elastic slice (5) includes the first elastic slice (52), second Elastic slice (53) and PE line elastic slice (54), first elastic slice (52) are being connected to maintenance device by setting with the second elastic slice (53) (6) the elastic slice card slot (55) of two sides is fixed, and the PE line elastic slice (54) passes through connection and maintains device (6) bottom and by the bottom plate (4) be connected to maintain device (6) be fixedly clamped；

Electric connection contacts (16) are equipped at the top of the pin (3), first elastic slice (52), the second elastic slice (53) and PE line elastic slice (54) end is designed with shrapnel contact (51) corresponding with the electric connection contacts (16), when the compression bar (22) is by the bullet When piece (5) is depressed, the shrapnel contact (51) is in contact with the electric connection contacts (16), first elastic slice (52), second Shrapnel contact (51) on elastic slice (53) and PE line elastic slice (54) can be disconnected with the electric connection contacts (16).

3. earth leakage protective device as described in claim 1, which is characterized in that the briquetting top (8c) and briquetting lower part (8d) are cut with scissors It meets place and is equipped with hinged seat, first pin shaft (21) is arranged in the hinged seat, is additionally provided with limited block on the hinged seat (12), the limited block (12) is for controlling between the briquetting top (8c) and briquetting lower part (8d) with the first pin shaft (21) Subtended angle when being rotated for axle center.

4. earth leakage protective device as described in claim 1, which is characterized in that the connection maintains device (6) to be connected to dress with described The button foot (10) that (7) bottom is designed with wedge shape is set, the connection maintains device (6) and communication apparatus (7) to pass through the button respectively Foot (10) is fixed with the bottom plate (4) snapping.

5. earth leakage protective device as described in claim 1, which is characterized in that the communication apparatus (7) further includes connection coil (71) be connected to spring (73), it is internal that the connection coil (71) is fixed on communication apparatus (7), the connection spring (73) and the Two iron cores (72) are horizontally set on connection coil (71) inner cavity.

6. earth leakage protective device as described in claim 1, which is characterized in that it further includes maintaining line that the connection, which maintains device (6), (61) and third iron core (63) are enclosed, the maintenance coil (61) is fixed on the connection and maintains device (6) internal, the third iron Core (63) and first iron core (62) are vertically arranged in maintenance coil (61) inner cavity；Described third iron core (63) one end with The connection maintains device (6) bottom to be fixedly connected, and third iron core (63) other end is for adsorbing first iron core (62)。

7. earth leakage protective device as described in claim 1, which is characterized in that second pin shaft (31) includes sleeve part and shaft The heart, the sleeve part are arranged on the locking driving lever (8b), and the shaft heart is arranged on second support (64), described Sleeve part is socketed in outside the shaft heart, and the locking driving lever (8b) can be revolved by the sleeve part around the shaft heart Turn.

8. earth leakage protective device as claimed in claim 3, which is characterized in that the hinged seat is equipped with pre- articulated mounting, described Pre- articulated mounting includes boss (13) and clamping groove (14), and the boss (13) is located at the hinged of the briquetting top (8c) Place, the clamping groove (14) are located at briquetting lower part (8d) hinged place, pass through the boss (13) and clamping groove (14) Cooperation, realize that the briquetting top (8c) and briquetting lower part (8d's) is pre- hinged.

9. earth leakage protective device as claimed in claim 3, which is characterized in that the hinged seat is equipped with pre- articulated mounting, described Pre- articulated mounting includes boss (13) and clamping groove (14), and the clamping groove (14) is located at the hinge of the briquetting top (8c) Place is met, the boss (13) is located at briquetting lower part (8d) hinged place, passes through the boss (13) and clamping groove (14) Cooperation realizes that the briquetting top (8c) and briquetting lower part (8d's) is pre- hinged.

10. earth leakage protective device as described in claim 1, which is characterized in that be additionally provided with compression top on the locking driving lever (8b) Block (35), the compression jacking block (35) are located at described lock (33) side, and when the power is turned on, second iron core (72) passes through Perpendicular fork pockets (23) drive elastic slice briquetting (8a) rotation, the hasp (24) along hasp slideway (36) upward sliding, and And the hasp (24) slide past the lock (33) after instantaneously abutted with the compression jacking block (35), by with the pressure Block (35) are pressed closer to abut so that the horizontal fork pockets (34) drives first iron core (62) to move downwardly to extreme lower position.

11. earth leakage protective device as described in claim 1, which is characterized in that the briquetting top (8c) and briquetting lower part (8d) The position for being correspondingly arranged briquetting spring (9) is designed with spring groove, and spring stack, the spring groove and bullet are additionally provided in the spring groove Spring column is for installing the briquetting spring (9).

12. earth leakage protective device as described in claim 1, which is characterized in that be additionally provided with instruction block on the locking driving lever (8b) (42), the instruction block (42) is located at locking top driving lever (8b), and when the power is turned on, the instruction block (42) moves to protection In the watch window (15) of device shell (1), when power supply disconnects, the described instruction observation window of block (42) from protector housing (1) Mouth (15) removes, and instruction block (42) color is red.

13. earth leakage protective device as described in claim 1, which is characterized in that be additionally provided with limiting block on the locking driving lever (8b) Plate (11), postive stop baffle (11) setting is in the locking driving lever end (8b) and is located on second support (64) Portion, when power supply disconnects, the postive stop baffle (11) can be abutted with second support (64) to the locking driving lever The rotation angle of (8b) is limited.

14. earth leakage protective device as described in claim 1, which is characterized in that the elastic slice (5) includes the first elastic slice (52) and the Two elastic slices (53), first elastic slice (52) are being connected to the elastic slice for maintaining device (6) two sides by setting with the second elastic slice (53) Card slot (55) is fixed；

Electric connection contacts (16) are equipped at the top of the pin (3), first elastic slice (52) and the second elastic slice (53) end are all set There is shrapnel contact (51) corresponding with the electric connection contacts (16), when the compression bar (22) depresses the elastic slice (5), The shrapnel contact (51) is in contact with the electric connection contacts (16)；On first elastic slice (52) and the second elastic slice (53) Shrapnel contact (51) can be disconnected with the electric connection contacts (16), and PE line can not be disconnected and be remained up.

15. earth leakage protective device as claimed in claim 2, which is characterized in that correspond to PE line elastic slice (54) on the compression bar (22) Place is equipped with convex block (41), and when the compression bar (22) pressure, the convex block (41) makes the PE line elastic slice (54) prior to described First elastic slice (52) and the second elastic slice (53) and the pin (3) are connected；When the compression bar (22) lifts, the convex block (41) So that being disconnected after the PE line elastic slice (54) in first elastic slice (52) and the second elastic slice (53) and the pin (3).