CN215299170U

CN215299170U - Lever type three-pole power-off leakage protector

Info

Publication number: CN215299170U
Application number: CN202120758889.5U
Authority: CN
Inventors: 钱加灿
Original assignee: Yuyao Jiarong Electronic Appliance Co Ltd
Current assignee: Yuyao Jiarong Electronic Appliance Co Ltd
Priority date: 2021-04-14
Filing date: 2021-04-14
Publication date: 2021-12-24
Anticipated expiration: 2031-04-14

Abstract

The utility model discloses a lever tripolar earth-leakage protector that breaks relates to earth-leakage protector technical field and includes: the leakage protection device is arranged on the base; the leakage protection device comprises a reset key, a reset stop block, an electromagnetic driving device, a reset driving device and a reset pull rod; the reset stop block can be movably arranged in the middle of the base up and down, extension ends capable of being abutted against the elastic sheets are arranged on the two sides and the bottom of the reset stop block, the elastic sheets can be controlled to be electrically connected with the pins through the extension ends, and the electromagnetic driving device and the reset driving device are respectively arranged on the two sides of the reset stop block; the reset key is vertically inserted into the reset block, and the transverse end of the clamping piece can be clamped with the reset key, so that the reset key can drive the reset block to move up and down; the reset driving device can drive the reset key connected with the reset pull rod to move downwards; through the setting of the reset pull rod and the reset driving device, the automatic reset of the leakage protector is realized, and the application range of the leakage protector is wider.

Description

Lever type three-pole power-off leakage protector

Technical Field

The utility model belongs to the technical field of the earth-leakage protector technique and specifically relates to a lever tripolar earth-leakage protector that breaks.

Background

Along with the continuous progress of science and technology and society in modern society, the living standard of people is continuously improved, intelligent household appliances gradually enter the lives of people, the chances of people and electric contact are more and more, the condition that electric shock casualties occur due to the fact that electric equipment breaks down is caused, and in order to achieve personal safety and equipment property safety, the leakage protector serving as an effective electric safety technical device is widely used and plays a role in lifting weight. However, the reset structure of the existing leakage protector can only reset through manual control, and cannot remotely reset, so that the leakage protector is not simple and convenient to use.

SUMMERY OF THE UTILITY MODEL

First, technical problem to be solved

The utility model discloses an above-mentioned defect to prior art existence especially provides a lever tripolar earth leakage protector that breaks, has solved the unable problem that realizes automatic re-setting of current earth leakage protector.

Second, technical scheme

In order to solve the technical problem, the utility model provides a lever tripolar earth leakage protector that breaks includes: the leakage protection device is arranged on the base;

the leakage protection device comprises a reset key, a reset stop block, an electromagnetic driving device, a reset driving device and a reset pull rod;

the reset stop block can be movably arranged in the middle of the base up and down, extension ends capable of being abutted against the elastic sheets are arranged on the two sides and the bottom of the reset stop block, the elastic sheets can be controlled to be electrically connected with the pins through the extension ends, and the electromagnetic driving device and the reset driving device are respectively arranged on the two sides of the reset stop block;

the electromagnetic driving device is provided with a first driving iron core and a clamping piece, the electromagnetic driving device can drive the first driving iron core transversely penetrating through the electromagnetic driving device to perform linear motion, the end part of the first driving iron core is clamped with the vertical end of the clamping piece, and the reset stop block is provided with a clamping groove for inserting the transverse end of the clamping piece;

the reset key is vertically inserted into the reset block, and the transverse end of the clamping piece can be clamped with the reset key, so that the reset key can drive the reset block to move up and down;

the reset driving device can drive the second driving iron core vertically penetrating through the second driving iron core to perform linear motion, the end part of the second driving iron core is clamped with one end of the reset pull rod, and the second driving iron core moves downwards to drive the reset key connected with the reset pull rod to move downwards.

Wherein, base upper portion still is equipped with the circuit board, and in the button that resets inserted the stopper after passing the circuit board, reset button upper portion cover was equipped with reset spring, reset spring one end and the button butt that resets, the reset spring other end and circuit board butt.

Under the normal operating condition, press the button that resets and can make the shell fragment move down and then with participating in the separation and outage under self elasticity effect, reset button resets under the reset spring effect and shifts up and can make the dog that resets drive the shell fragment shift up and with participating in the contact and circular telegram.

The upper part of the base is provided with a sliding groove which can enable the reset stop block to be inserted into the base from top to bottom, and the reset stop block can move up and down relative to the sliding groove.

The base is provided with a base, a base is arranged on the base, the base is provided with a pin slot, the pin is provided with a zero line pin, a live line pin and a ground line pin, the zero line pin, the live line pin and the ground line pin are respectively fixed through the pin slot on the base in a clamping mode, and the upper ends of the zero line pin, the live line pin and the ground line pin are respectively provided with an electric connection contact point.

The electromagnetic driving device is arranged between the two elastic sheet clamping parts, and the ground wire elastic sheet penetrates through the bottom of the electromagnetic driving device and is clamped and fixed by the base and the electromagnetic driving device;

the zero line elastic piece corresponds to the zero line pin, the live wire elastic piece corresponds to the live wire pin, and the ground wire elastic piece corresponds to the ground wire pin; the ends of the zero line spring plate, the live line spring plate and the ground wire spring plate are provided with spring plate contacts corresponding to the electric connection contacts.

Wherein, still be equipped with the first iron core spring with first drive iron core butt in the electromagnetic drive device, be equipped with the second iron core spring with second drive iron core butt in the drive arrangement that resets.

Wherein, be equipped with pivot and iron core draw-in groove on the pull rod resets, the pull rod that resets is articulated through the articulated seat that stretches out on pivot and the base, and second drive core and iron core draw-in groove joint, second drive core downstream can drive the pull rod that resets and rotate around articulated seat, and the pull rod that resets is connected fixedly through connecting portion and the button that resets.

Wherein, another tip that the pull rod that resets is relative with the iron core draw-in groove still is equipped with the instruction piece.

The reset connecting part comprises an inserting hole arranged on the reset pull rod and a buckling rod arranged on the side edge of the reset button, the inserting hole is positioned between the rotating shaft and the iron core clamping groove, and the buckling rod can be fixedly installed with the inserting hole.

Third, beneficial effect

Compared with the prior art, the utility model discloses a earth-leakage protector simple structure, through the pull rod that resets and the setting of drive arrangement that resets, realized earth-leakage protector's automatic re-setting, particularly, after earth-leakage protector outage dropout, in order to make earth-leakage protector reset, can realize long-range and automation mechanized operation and reset, improved earth-leakage protector's convenient to use degree greatly, make its application scope wider.

Drawings

Fig. 1 is a perspective view 1 of the lever type three-pole power-off leakage protector of the present invention;

fig. 2 is a perspective view 2 of the lever type three-pole breaking leakage protector of the present invention;

FIG. 3 is a structural diagram of the base of the present invention;

fig. 4 is a structural diagram of the reset rod and the second driving iron core of the present invention;

fig. 5 is a structural diagram of the first driving core and the fastening piece of the present invention;

fig. 6 is a structural diagram of the reset stop of the present invention;

fig. 7 is a structural diagram of the reset button of the present invention;

in the figure: 1 is a base; 2 is a leakage protection device; 3 is a pin; 4 is a reset key; 5 is a reset stop block; 6 is an electromagnetic driving device; 7 is a reset driving device; 8 is a spring plate; 9 is a sliding groove; 10 is a pin slot; 11 is a spring plate clamping part; 12 is a return spring; 13 is a bayonet; 14 is a fastening groove; 15 is a first driving iron core; 16 is a fastening sheet; 17 is a second driving iron core; 18 is a transverse end; 19 is a vertical end; 20 is a zero line spring plate; 21 is a live wire shrapnel; 22 is a ground wire elastic sheet; 23 is a spring contact; 24 is a neutral pin; 25 is a live wire pin; 26 is a ground pin; 27 are electrical connection contacts; 28 is an extension end; 29 is a reset pull rod; 30 is a circuit board; 31 is a rotating shaft; 32 is an iron core clamping groove; 34 is a hinged seat; 35 is an indication block; 36 is a fastening rod; 37 is a plug hole.

Detailed Description

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

Example 1:

the utility model discloses a lever type tripolar current-breaking leakage protector, as shown in figure 1, figure 2, figure 3, figure 4, figure 5, figure 6 and figure 7, include: the leakage protection device comprises a base 1, a leakage protection device 2 arranged on the base 1, pins 3 and an elastic sheet 8;

the leakage protection device 2 comprises a reset key 4, a reset stop block 5, an electromagnetic driving device 6, a reset driving device 7 and a reset pull rod 29;

specifically, the upper part of the base 1 is provided with a sliding groove 9 which can enable the reset stop block 5 to be inserted into the base 1 from top to bottom, and the reset stop block 5 can move up and down relative to the sliding groove 9; the reset stop block 5 can be movably arranged in the middle of the base 1 up and down, extension ends 28 which can be abutted against the elastic sheet 8 are arranged at the two sides and the bottom of the reset stop block 5, the electric connection between the elastic sheet 8 and the pin 3 can be controlled through the extension ends 28, specifically, the contact and separation between an elastic sheet contact 23 on the elastic sheet 8 and an electric connection contact 27 on the pin 26 are controlled, and the electromagnetic driving device 6 and the reset driving device 7 are respectively arranged at the two sides of the reset stop block 5;

the electromagnetic driving device 6 is provided with a first driving iron core 15 and a clamping piece 16, the electromagnetic driving device 6 can drive the first driving iron core 15 transversely penetrating through the electromagnetic driving device 6 to perform linear motion, the end part of the first driving iron core 15 is clamped with a vertical end 19 of the clamping piece 16, and the reset stop block 5 is provided with a clamping groove 14 for inserting a transverse end 18 of the clamping piece 16;

the reset key 4 is vertically inserted into the reset stop block 5, and the transverse end 18 of the clamping piece 16 can be clamped with the reset key 4, so that the reset key 4 can drive the reset stop block 5 to move up and down;

the reset driving device 7 can drive the second driving iron core 17 vertically penetrating through the interior of the reset driving device to perform linear motion, the end part of the second driving iron core 17 is clamped with one end of the reset pull rod 29, and the second driving iron core 17 moves downwards to drive the reset button 4 connected with the reset pull rod 29 to move downwards.

Specifically, the first driving iron core 15 is connected with the buckling piece 16 in a vertically movable buckling manner, the buckling piece 16 is a metal sheet with U-shaped openings at two ends and is bent, wherein one vertical U-shaped opening at the vertical end 19 is buckled with the first driving iron core 15, the other horizontal U-shaped opening at the transverse end 18 can be inserted into the buckling groove 14, the electromagnetic driving device 6 can enable the first driving iron core 15 to move so as to drive the buckling piece 16 to move, and the resetting block 5 is provided with the buckling groove 14 for the buckling piece 16 to insert;

the upper part of the base 1 is also provided with a circuit board 30, the reset key 4 is inserted into the reset stop block 5 after passing through the circuit board 30, the upper part of the reset key 4 is sleeved with a reset spring 12, specifically, one end of the reset key 4 inserted into the reset stop block 5 is provided with a bayonet 13 clamped and matched with a buckle piece 16, the buckle piece 16 is inserted into a buckle groove 14 and can be clamped and connected with the bayonet 13 on the reset key 4, thereby the reset key 4 and the reset stop block 5 are fixed together to realize the buckle, in the buckle state, namely, in the normal working state, the reset key 4 is pressed down to enable the reset stop block 5 to drive the elastic sheet 8 to move down, or the elastic sheet 8 moves down under the self elastic force action to be separated from the pin 3 to cut off the power, the reset key 4 is reset up under the elastic force of the reset spring 12 to enable the reset stop block 5 to drive the elastic sheet 8 to move up, thereby enabling the elastic sheet 8 and the pin 3 to be contacted and powered on the power, wherein the reset spring 12 is sleeved on the upper part of the reset key 4, one end of the reset spring 12 is abutted against the reset key 4, and the other end of the reset spring 12 is abutted against the circuit board 30;

as shown in fig. 4, in this embodiment, a rotating shaft 31 and an iron core slot 32 are disposed on the reset rod 29, the iron core slot 32 is disposed at one end of the reset rod 29, the rotating shaft 31 is disposed at the middle of the reset rod 29, the reset rod 29 is hinged to a hinge seat 34 extending upward from the middle position of the base 1 through the rotating shaft 31, the upper end of the second driving iron core 17 is connected to the iron core slot 32 in a snap-in manner, the second driving iron core 17 moves downward to drive the reset rod 29 to rotate around the hinge seat 34, the reset rod 29 is connected and fixed to the reset button 4 through a reset connection portion, specifically, the reset connection portion includes an insertion hole 37 disposed on the reset rod 29 and a fastening rod 36 disposed at the side of the reset button 4, the insertion hole 37 is disposed between the rotating shaft 31 and the iron core slot 32, the fastening rod 36 can be fixedly mounted with the insertion hole 37, so that when the reset driving device 7 is powered on, the second driving iron core 17 moves downward, and then can drive the pull rod 29 that resets and rotate around articulated seat 34, further drive reset button 4 and push down, at this moment, accessible and electromagnetic drive device 6 cooperation realize earth-leakage protector's automatic re-setting.

The pin 3 comprises a neutral pin 24, a live pin 25 and a ground pin 26, the neutral pin 24, the live pin 25 and the ground pin 26 are respectively clamped and fixed through pin clamping grooves 10 on the base 1, and the upper ends of the neutral pin 24, the live pin 25 and the ground pin 26 are respectively provided with an electric connecting contact 27.

The elastic sheet 8 comprises a zero line elastic sheet 20, a live line elastic sheet 21 and a ground wire elastic sheet 22, the zero line elastic sheet 20 and the live line elastic sheet 21 are fixed through elastic sheet clamping parts 11 arranged on two sides of the base 1, the electromagnetic driving device 6 is positioned between the two elastic sheet clamping parts 11, and the ground wire elastic sheet 22 penetrates through the bottom of the electromagnetic driving device 6 and is clamped and fixed by the base 1 and the electromagnetic driving device 6;

the zero line spring piece 20 corresponds to the position of a zero line pin 24, the live line spring piece 21 corresponds to the position of a live line pin 25, and the ground line spring piece 22 corresponds to the position of a ground line pin 26; the ends of the zero line spring plate 20, the live line spring plate 21 and the ground line spring plate 22 are all provided with spring plate contacts 23 corresponding to the electric connection contacts 27, and the electric connection can be ensured to be stable and reliable.

Still be equipped with the first iron core spring with first drive iron core 15 butt in the electromagnetic drive device 6, particularly, can be ejecting with first drive iron core 15 through first iron core spring, and then promote buckle piece 16, reset button 4 pushes down the in-process, reset button 4's bayonet socket 13 and buckle piece 16's horizontal end 18 joint to the automatic re-setting of earth-leakage protector is realized to the upper buckle, is equipped with the second iron core spring with second drive iron core 17 butt in the drive arrangement 7 that resets.

Example 2:

as shown in fig. 4, compared to embodiment 1, in this embodiment, an indication block 35 is further provided on the other end of the reset lever 29 opposite to the core slot 32, that is, the state of the earth leakage protector can be displayed by the position of the indication block 35, specifically, when one end of the core slot 32 of the reset lever 29 is pulled down by the second driving core 17 of the reset driving device 7 energized, one end of the indication block 35 of the reset lever 29 rotates upward around the rotating shaft 31, and the position of the reset button 4 can be determined on the corresponding observation window on the earth leakage protector with the housing installed.

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

Claims

1. A lever type tripolar protector against current leakage is characterized in that the lever type tripolar protector against current leakage comprises: the leakage protection device comprises a base (1), a leakage protection device (2) arranged on the base (1), pins (3) and an elastic sheet (8);

the leakage protection device (2) comprises a reset key (4), a reset stop block (5), an electromagnetic driving device (6), a reset driving device (7) and a reset pull rod (29);

the reset stop block (5) is movably arranged in the middle of the base (1) up and down, extension ends (28) capable of being abutted to the elastic sheet (8) are arranged on two sides and at the bottom of the reset stop block (5), the elastic sheet (8) can be controlled to be electrically connected with the pins (3) through the extension ends (28), and the electromagnetic driving device (6) and the reset driving device (7) are respectively arranged on two sides of the reset stop block (5);

the electromagnetic driving device (6) is provided with a first driving iron core (15) and a clamping piece (16), the electromagnetic driving device (6) can drive the first driving iron core (15) transversely penetrating through the electromagnetic driving device to perform linear motion, the end part of the first driving iron core (15) is clamped with a vertical end (19) of the clamping piece (16), and the reset stop block (5) is provided with a clamping groove (14) for inserting a transverse end (18) of the clamping piece (16);

the reset key (4) is vertically inserted into the reset stop block (5), and the transverse end (18) of the buckle piece (16) can be clamped with the reset key (4), so that the reset key (4) can drive the reset stop block (5) to move up and down;

the reset driving device (7) can drive a second driving iron core (17) vertically penetrating through the reset driving device to perform linear motion, the end part of the second driving iron core (17) is clamped with one end of a reset pull rod (29), and the second driving iron core (17) moves downwards to drive a reset key (4) connected with the reset pull rod (29) to move downwards;

the upper part of the base (1) is further provided with a circuit board (30), the reset key (4) penetrates through the circuit board (30) and then is inserted into the reset stop block (5), a reset spring (12) is sleeved on the upper part of the reset key (4), one end of the reset spring (12) is abutted against the reset key (4), and the other end of the reset spring (12) is abutted against the circuit board (30);

under the normal operating condition, press reset button (4) down and can make shell fragment (8) down motion and then with participating in (3) separation and outage under self elasticity effect, reset button (4) restore to the throne under the reset spring effect and move up and can make reset dog (5) drive shell fragment (8) shift up and with participate in (3) contact and circular telegram.

2. A lever type tripolar earth leakage protector as claimed in claim 1, wherein the base (1) is provided at an upper portion thereof with a slide groove (9) for inserting the reset stopper (5) into the base (1) from above, and the reset stopper (5) is movable up and down relative to the slide groove (9).

3. A lever type tripolar earth leakage protector as claimed in claim 1, wherein said pins (3) include a neutral pin (24), a live pin (25) and a ground pin (26), said neutral pin (24), said live pin (25) and said ground pin (26) are respectively snap-fitted through pin slots (10) on the base (1), and upper ends of said neutral pin (24), said live pin (25) and said ground pin (26) are respectively provided with an electrical connection contact (27).

4. A lever type tripolar earth leakage protector as claimed in claim 3, wherein the elastic sheet (8) comprises a zero line elastic sheet (20), a live line elastic sheet (21) and a ground line elastic sheet (22), the zero line elastic sheet (20) and the live line elastic sheet (21) are fixed by elastic sheet clamping parts (11) arranged at two sides of the base (1), the electromagnetic driving device (6) is positioned between the two elastic sheet clamping parts (11), and the ground line elastic sheet (22) passes through the bottom of the electromagnetic driving device (6) and is clamped and fixed by the base (1) and the electromagnetic driving device (6);

the zero line spring piece (20) corresponds to the position of the zero line pin (24), the live line spring piece (21) corresponds to the position of the live line pin (25), and the ground wire spring piece (22) corresponds to the position of the ground wire pin (26); and the ends of the zero line spring plate (20), the live line spring plate (21) and the ground wire spring plate (22) are provided with spring plate contacts (23) corresponding to the electric connection contact points (27).

5. A lever type tripolar protector against leakage as claimed in claim 1, wherein a first core spring abutting against the first driving core (15) is further provided in said electromagnetic driving device (6), and a second core spring abutting against said second driving core (17) is provided in said reset driving device (7).

6. The lever type tripolar earth leakage protector as claimed in claim 1, wherein the reset pull rod (29) is provided with a rotating shaft (31) and an iron core clamping groove (32), the reset pull rod (29) is hinged with a hinged seat (34) extending out of the base (1) through the rotating shaft (31), the second driving iron core (17) is clamped with the iron core clamping groove (32), the second driving iron core (17) moves downwards to drive the reset pull rod (29) to rotate around the hinged seat (34), and the reset pull rod (29) is fixedly connected with the reset key (4) through a reset connecting part.

7. A lever type three-pole breaking and leakage protector as claimed in claim 6, wherein the other end of the reset pull rod (29) opposite to the iron core slot (32) is further provided with an indication block (35).

8. A lever type tripolar protector against current leakage as claimed in claim 6, wherein said reset connecting portion comprises an insertion hole (37) provided on said reset lever (29) and a fastening rod (36) provided at a side of said reset button (4), said insertion hole (37) is located between said rotary shaft (31) and said core engaging groove (32), said fastening rod (36) is fixedly installed with said insertion hole (37).