CN214705835U

CN214705835U - Combined leakage protection circuit breaker

Info

Publication number: CN214705835U
Application number: CN202121342238.4U
Authority: CN
Inventors: 刘思远
Original assignee: Hunan Huisitong Electric Technology Co ltd
Current assignee: Hunan Huisitong Electric Technology Co ltd
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2021-11-12
Anticipated expiration: 2031-06-17

Abstract

The utility model discloses a modular earth leakage protection circuit breaker, including the zero line terminal box, zero line terminal box one end lateral wall swing joint has the live wire terminal box, another lateral wall swing joint of zero line terminal box has fixed shell, all be provided with on zero line terminal box and the live wire terminal box and close the separating brake handle. The utility model discloses a set up independent zero line terminal box and live wire terminal box, utilize cylinder spout and cylinder slide bar to carry out the block location with zero line terminal box and live wire terminal box, recycle screw and screw hole and tightly fix zero line terminal box and live wire terminal box together, not only convenient assembling, and when zero line terminal box or live wire terminal box take place to damage, can independently change, convenient maintenance and reduction cost of maintenance, and simultaneously, through setting up audible-visual annunciator, when utilizing to close the tripping operation of separating brake handle, the insulating inserted block is driven to the silk ribbon, make audible-visual annunciator trigger, make things convenient for personnel in time to overhaul fault circuit.

Description

Combined leakage protection circuit breaker

Technical Field

The utility model relates to an earth leakage protection circuit breaker technical field specifically is a modular earth leakage protection circuit breaker.

Background

The leakage protection circuit breaker is also called as a leakage circuit breaker, is mainly used for protecting the electric shock of a human body with fatal danger when equipment has leakage faults, has the functions of overload and short circuit protection, can be used for protecting the overload and short circuit of a circuit or a motor, and can also be used for the infrequent switching starting of the circuit under the normal condition.

Patent document CN212461558U provides a circuit breaker earth leakage protection device, including the circuit breaker main part, the upper and lower both sides of circuit breaker main part all are provided with circuit connection portion, the mounting hole has been seted up to the positive corner of circuit breaker main part, the protective tank is installed through the mounting hole to the circuit breaker main part, the front of circuit breaker main part and the inboard that is located the protective tank are provided with circuit breaker, the front of circuit breaker main part and the upper right side that is located circuit breaker are provided with the button that resets, the protective tank is corresponding to be provided with the upset apron, be provided with the sealing washer around the inboard of upset apron, the tip of upset apron is provided with connecting portion, the connecting portion of upset apron passes through the bearing and is connected with the protective tank, the bottom of upset apron is provided with the switch and detains, compares with current circuit breaker earth leakage protection device, the utility model discloses a design can improve circuit breaker earth leakage protection device's whole security, Economy and practicality.

And the electric leakage circuit breaker of integral type equipment on the market at present, though electric leakage function volume is assembled with the modularization and is compared and slightly reduce, its manufacturing process is complicated, the equipment difficulty, the production equipment time that leads to single circuit breaker is generally longer, it is too high to the assembler technical requirement, furthermore, because general circuit breaker module sets up in same casing with electric leakage circuit breaker module an organic whole, no matter which module takes place functional failure and can lead to whole platform product to become invalid or scrap, be unfavorable for the maintenance, consequently, need for a modular earth leakage protection circuit breaker to solve above-mentioned problem urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a modular earth leakage circuit breaker to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a modular earth leakage protection circuit breaker, includes the zero line terminal box, zero line terminal box one end lateral wall swing joint has the live wire terminal box, another lateral wall swing joint of zero line terminal box has fixed shell, all be provided with on zero line terminal box and the live wire terminal box and close the separating brake handle.

Preferably, a plurality of cylindrical through grooves which are horizontally arranged in the zero line junction box in a penetrating mode are arranged in the zero line junction box, a plurality of cylindrical sliding rods matched with the cylindrical through grooves are fixedly connected to the side wall of one end, close to the zero line junction box, of the live line junction box, and the cylindrical sliding rods slide through the cylindrical through grooves.

Preferably, the lateral wall of one end of the fixed shell, which is far away from the zero line junction box, is provided with a plurality of screw holes corresponding to the horizontal positions of the cylindrical through grooves, the screw holes are connected with screws in a sliding manner, one end of the cylindrical sliding rod, which is close to the fixed shell, is provided with a threaded hole matched with the screw, and the screw is in threaded connection with the threaded hole.

Preferably, the upper end of the zero line junction box is provided with a wire inlet end zero line wiring terminal, and the lower end of the zero line junction box is provided with a wire outlet end zero line wiring terminal.

Preferably, the upper end of the live wire junction box is provided with a live wire connecting terminal of a live wire inlet end, and the lower end of the live wire junction box is provided with a live wire connecting terminal of a live wire outlet end.

Preferably, one end of the live wire terminal box, which is far away from the zero line terminal box, is fixedly connected with a function box, two cylindrical chutes which are arranged in an up-and-down symmetry mode are arranged in the function box, two conductive contacts which are arranged in an up-and-down symmetry mode are fixedly connected with the cylindrical chutes through springs, and the conductive contacts are connected with the cylindrical chutes in a sliding mode.

Preferably, an audible and visual alarm is fixedly mounted in the function box, and the positive electrode and the negative electrode of a power switch of the audible and visual alarm are respectively and fixedly connected with the two conductive contacts through a conducting wire.

Preferably, a slot is arranged between the two cylindrical sliding grooves in the function box, one end of the closing and opening handle arranged on the live wire junction box, which is far away from the side wall of the zero line junction box, is rotatably connected with a ribbon, and one end of the ribbon, which is far away from the closing and opening handle, is fixedly connected with an insulating plug block matched with the slot.

Compared with the prior art, the beneficial effects of the utility model are that:

this combination formula earth leakage protection circuit breaker is through setting up independent zero line terminal box and live wire terminal box, rethread cylinder spout carries out the block location with zero line terminal box and live wire terminal box with the cylinder slide bar, and finally, screw and screw hole through on the fixed shell, tightly be in the same place zero line terminal box and live wire terminal box, not only convenient assembling, and when zero line terminal box or live wire terminal box take place to damage, can independently change, convenient maintenance and reduction cost of maintenance, and simultaneously, through setting up audible-visual annunciator, when utilizing the tripping operation of closing and separating brake handle, the insulating inserted block is driven to the silk ribbon to leave the slot, make two conductive contact contacts contact, and then control audible-visual annunciator sends the police dispatch, the audible-visual warning effect is more obvious, make things convenient for personnel in time to overhaul fault circuit.

Drawings

Fig. 1 is a schematic view of the overall split structure of the present invention;

fig. 2 is a schematic front view of the cross-sectional structure of the present invention;

fig. 3 is a schematic side view of the cross-sectional structure of the present invention;

fig. 4 is a schematic top view of the present invention;

fig. 5 is an enlarged schematic structural diagram of a point a in fig. 3 according to the present invention.

In the figure: 1. a zero line terminal block; 2. a live wire junction box; 3. fixing the housing; 4. a switching-on/off handle; 5. a cylindrical through groove; 6. a cylindrical slide bar; 7. screw holes; 8. a screw; 9. a threaded hole; 10. a zero line connecting terminal of the incoming line end; 11. a zero line connecting terminal of the outgoing line end; 12. a live wire connecting terminal of the incoming line end; 13. a live wire connecting terminal at the outgoing line end; 14. a function box; 15. a cylindrical chute; 16. a spring; 17. a conductive contact; 18. an audible and visual alarm; 19. a slot; 20. a ribbon; 21. and (4) insulating plug blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides an embodiment:

a combined leakage protection circuit breaker comprises a zero line junction box 1, wherein a live wire junction box 2 is movably connected to the side wall of one end of the zero line junction box 1, a plurality of cylindrical through grooves 5 which are horizontally arranged in a penetrating manner are arranged in the zero line junction box 1, a plurality of cylindrical slide bars 6 which are matched with the cylindrical through grooves 5 are fixedly connected to the side wall of one end, close to the zero line junction box 1, of the live wire junction box 2, the cylindrical slide bars 6 are arranged in a sliding manner through the cylindrical through grooves 5, the cylindrical through grooves 5 arranged on the zero line junction box 1 and the cylindrical slide bars 6 arranged on the live wire junction box 2 are horizontally corresponding to each other by arranging the cylindrical through grooves 5 and the cylindrical slide bars 6, then the cylindrical slide bars 6 are driven to be close to each other, the cylindrical slide bars 6 are inserted into the corresponding cylindrical through grooves 5 in a sliding manner, and the zero line junction box 1 and the live wire junction box 2 can be mutually attached under the condition that the appearance and the position correspond to each other one another, another lateral wall swing joint of zero line terminal box 1 has fixed shell 3, the one end lateral wall that fixed shell 3 keeps away from zero line terminal box 1 is equipped with a plurality of screw holes 7 that correspond with cylinder logical groove 5 horizontal position, and is a plurality of all sliding connection has screw 8 in screw hole 7, the one end that cylinder slide bar 6 is close to fixed shell 3 is equipped with screw hole 9 with screw 8 assorted, screw 8 and screw hole 9 threaded connection, through setting up screw hole 7, after zero line terminal box 1 and live wire terminal box 2 sliding connection, with the mode laminating of screw hole 7 and cylinder slide bar 6 one-to-one of fixed shell 3 at the one end lateral wall of zero line terminal box 1, insert screw 8 into screw hole 7 again to utilize tools such as screwdriver to rotate screw 8, make screw 8 and the threaded connection of screw hole 9 on the cylinder slide bar 6, screw 8 finally, screw 8 screws, then live wire terminal box 2 and fixed shell 3 tightly hold zero line terminal box 1 and accomplish this earth leakage protection circuit breaker And (4) assembling.

The utility model discloses a circuit live wire terminal, including zero line terminal box 1, live wire terminal box 2, zero line terminal box 1 upper end is equipped with inlet wire end zero line binding post 10, and zero line terminal box 1 lower extreme is equipped with outlet wire end zero line binding post 11, through setting up inlet wire end zero line binding post 10 and outlet wire end zero line binding post 11, can be with in the 1 access circuit zero line of zero line terminal box, 2 upper ends of live wire terminal box are equipped with inlet wire end live

wire binding post

12, 2 lower extremes of live wire terminal box are equipped with outlet wire end live wire binding post 13, through setting up inlet wire end live wire binding post 12 and outlet wire end live wire binding post 13, can insert live wire terminal box 2 in the circuit live wire.

The zero line terminal box 1 and the live wire terminal box 2 are both provided with a switching-on/off handle 4, the switching-on/off handle 4 is switched on when being shifted upwards, the switching-off is switched off when being shifted downwards, a functional box 14 is fixedly connected to the side wall of one end, far away from the zero line terminal box 1, of the live wire terminal box 2, two cylindrical sliding grooves 15 which are arranged in an up-and-down symmetry mode are arranged in the functional box 14, two conductive contacts 17 which are arranged in an up-and-down symmetry mode are fixedly connected in the two cylindrical sliding grooves 15 through springs 16, the conductive contacts 17 are connected with the cylindrical sliding grooves 15 in a sliding mode, the springs 16 keep and push the two conductive contacts 17 to be close to each other through elastic action in a normal state through the springs 16, an audible and visual alarm 18 is fixedly installed in the functional box 14, the positive pole and the negative pole of a power switch of the audible and visual alarm 18 are respectively fixedly connected with the two conductive contacts 17 through a lead, and the positive pole and the negative pole of the power switch of the audible and visual alarm 18 are respectively fixedly connected with the two conductive contacts 17 through a lead When the two conductive contacts 17 are contacted with each other, the power switch of the audible and visual alarm 18 is closed, the audible and visual alarm 18 can give out audible and visual alarm, a slot 19 is arranged between the two cylindrical sliding grooves 15 in the functional box 14, a ribbon 20 is rotatably connected to the side wall of the opening and closing handle 4 arranged on the live wire junction box 2 far away from the zero line junction box 1, one end of the silk ribbon 20 far away from the switching-on/off handle 4 is fixedly connected with an insulation insertion block 21 matched with the slot 19, and by arranging the insulation insertion block 21, when the insulating insert 21 is inserted into the slot 19, the two conductive contacts 17 can be spaced apart from each other, thereby the power switch of the audible and visual alarm 18 is broken, the audible and visual alarm 18 can not give out audible and visual alarm, when the insulating plug 21 leaves the slot 19 and the two conductive contacts 17 contact each other, the audible and visual alarm 18 starts to give an audible and visual alarm.

The working principle is as follows: when the earth leakage protection circuit breaker needs to be assembled, firstly, the zero line junction box 1 and the live wire junction box 2 are taken out, the cylindrical sliding rod 6 and the cylindrical through groove 5 are located at a horizontal corresponding position, then, the zero line junction box 1 and the live wire junction box 2 are close to each other, then, the live wire junction box 2 drives the cylindrical sliding rod 6 to slide and insert into the cylindrical through groove 5, after the side wall of the zero line junction box 1 adjacent to the live wire junction box 2 is laminated, the fixed shell 3 is taken out, the screw hole 7 corresponds to the horizontal position of the cylindrical sliding rod 6, then, the fixed shell 3 is laminated with the zero line junction box 1, finally, the screw 8 is inserted into the corresponding screw hole 7, the screw 8 is rotated by tools such as a screwdriver and the like, the screw 8 is in threaded connection with the screw hole 9 in the corresponding cylindrical sliding rod 6, the screw 8 is screwed, and then, the assembly of the earth leakage protection circuit breaker is completed.

When the earth leakage protection circuit breaker needs to trigger an audible and visual alarm after tripping, firstly, when the earth leakage protection circuit breaker works, the switching-on/off handle 4 is shifted to the upper end at the moment, the insulating insertion block 21 is inserted into the insertion slot 19, the ribbon 20 is straightened, the two conductive contacts 17 are separated by the insulating insertion block 21 and are not contacted, then, after the earth leakage protection circuit breaker trips, the switching-on/off handle 4 moves downwards, the straightened ribbon 20 drives the insulating insertion block 21 to leave the insertion slot 19, the two conductive contacts 17 are close to and contacted with each other under the action of elastic thrust of the spring 16, then the positive electrode and the negative electrode of a power switch of the audible and visual alarm 18 are switched on, and the audible and visual alarm 18 gives an audible and visual alarm.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a modular earth leakage protection circuit breaker, includes zero line terminal box (1), its characterized in that: the zero line terminal box is characterized in that one end side wall of the zero line terminal box (1) is movably connected with a live wire terminal box (2), the other side wall of the zero line terminal box (1) is movably connected with a fixed shell (3), and closing and opening handles (4) are arranged on the zero line terminal box (1) and the live wire terminal box (2).

2. A combined earth leakage circuit breaker according to claim 1, characterized in that: be equipped with cylinder that a plurality of levels run through the setting in zero line terminal box (1) and lead to groove (5), live wire terminal box (2) are close to one end lateral wall fixedly connected with a plurality of and cylinder that zero line terminal box (1) lead to groove (5) assorted cylinder slide bar (6), cylinder slide bar (6) slide and pass the setting of cylinder through groove (5).

3. A combined earth leakage circuit breaker according to claim 2, characterized in that: the one end lateral wall that zero line terminal box (1) was kept away from in fixed shell (3) is equipped with a plurality of screw holes (7) that correspond with cylinder through groove (5) horizontal position, and is a plurality of equal sliding connection has screw (8) in screw hole (7), the one end that cylinder slide bar (6) are close to fixed shell (3) is equipped with screw hole (9) with screw (8) assorted, screw (8) and screw hole (9) threaded connection.

4. A combined earth leakage circuit breaker according to claim 1, characterized in that: the upper end of the zero line junction box (1) is provided with a wire inlet end zero line wiring terminal (10), and the lower end of the zero line junction box (1) is provided with a wire outlet end zero line wiring terminal (11).

5. A combined earth leakage circuit breaker according to claim 1, characterized in that: the live wire terminal box is characterized in that a live wire connecting terminal (12) at the inlet end is arranged at the upper end of the live wire terminal box (2), and a live wire connecting terminal (13) at the outlet end is arranged at the lower end of the live wire terminal box (2).

6. A combined earth leakage circuit breaker according to claim 1, characterized in that: live wire terminal box (2) keep away from one end lateral wall fixed connection of zero line terminal box (1) has function box (14), be equipped with cylinder spout (15) that two upper and lower symmetries set up in function box (14), two all through conductive contact (17) that spring (16) fixed connection two upper and lower symmetries set up in cylinder spout (15), conductive contact (17) and cylinder spout (15) sliding connection.

7. A combined residual current circuit breaker as claimed in claim 6, characterized in that: an audible and visual alarm (18) is fixedly installed in the function box (14), and the positive electrode and the negative electrode of a power switch of the audible and visual alarm (18) are respectively and fixedly connected with the two conductive contacts (17) through a lead.

8. A combined residual current circuit breaker as claimed in claim 6, characterized in that: be equipped with slot (19) in function box (14) between two cylinder spout (15), the lateral wall that closes the separating brake handle (4) that is equipped with on live wire terminal box (2) one end and keep away from zero line terminal box (1) rotates and is connected with silk ribbon (20), one end fixedly connected with and slot (19) assorted insulating inserted block (21) of closing separating brake handle (4) are kept away from in silk ribbon (20).