CN112382543A

CN112382543A - Self-protection circuit breaker shell

Info

Publication number: CN112382543A
Application number: CN202011404104.0A
Authority: CN
Inventors: 王耀
Original assignee: Wuhu Junle Electric Co ltd
Current assignee: Wuhu Junle Electric Co ltd
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-02-19

Abstract

The invention discloses a self-protection type circuit breaker shell which comprises a circuit breaker body and a circuit breaker body, wherein a lower mounting plate is arranged below the circuit breaker body, the circuit breaker body is arranged at the top end of the lower mounting plate in a sliding mode, an upper mounting plate is arranged above the circuit breaker body, a first rotary groove is formed in the middle of the upper mounting plate, a rotary plate is rotatably connected inside the first rotary groove, an insertion hole is formed in the top end of the upper mounting plate and located on the front side of the first rotary groove, an extrusion rod is arranged on the inner wall of the insertion hole in an inserting mode, and a clamping block is fixedly connected to. According to the invention, the arrangement of the rotating plate, the clamping block and the extrusion rod is utilized, the rotating plate is extruded downwards by the extrusion rod to rotate, so that the clamping block is extruded by the rotating plate, and the clamping block is positioned, thus the breaker can be installed between the upper installation plate and the lower installation plate, the phenomenon of instable installation caused by repeated breaker disassembly and assembly is avoided by the extrusion fixing mode, and the installation stability of the breaker is improved.

Description

Self-protection circuit breaker shell

Technical Field

The invention relates to the field of circuit breakers, in particular to a self-protection type circuit breaker shell.

Background

The circuit breaker is a switch device which can close, bear and break the current under the condition of a normal loop and can close, bear and break the current under the condition of an abnormal loop within a specified time, the circuit breaker generally comprises a contact system, an arc extinguishing system, an operating mechanism, a release, a shell and the like, the release is connected with the circuit breaker and is used for releasing a holding mechanism and enabling the circuit breaker to be automatically broken, the circuit breaker has the function that when a line has electric leakage or a person gets an electric shock, the vector sum of the currents passing through a zero sequence current transformer is not equal to zero, voltages are generated on two sides of a secondary coil of the transformer and are amplified by an integrated circuit, and when a setting value is reached, a power supply is cut off within 0.1 second through the electric leakage release, so that the electric shock and electric leakage protection effects are achieved, and the circuit breaker has a self-protection function.

The circuit breaker is generally installed in the switch board, through installing two card rails in the switch board to pass through the mode and two card rail block installations of block with the shell of circuit breaker, this kind of mounting means along with circuit breaker dismouting back many times, can appear the phenomenon that the circuit breaker shell can't closely block with the card rail, thereby lead to the circuit breaker of installation to drop very easily, reduced the stability of circuit breaker installation.

Disclosure of Invention

The present invention is directed to a self-protection circuit breaker housing, which solves the above problems.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a from protection type circuit breaker casing, includes the circuit breaker body, the below of circuit breaker body is provided with down the mounting panel, the circuit breaker body slides and sets up in the top of mounting panel down, the top of circuit breaker body is provided with the mounting panel, first turn trough has been seted up at the middle part of going up the mounting panel, the inside rotation of first turn trough is connected with the commentaries on classics board, the jack has just been located the front in first turn trough to the top of going up the mounting panel, the inner wall interlude of jack is provided with the extrusion ram, the top fixedly connected with fixture block of circuit breaker body, the bottom of mounting panel and the top of last mounting panel all are provided with fixed.

Preferably, the inner wall of the jack is provided with an inner thread groove, the outer wall of the extrusion rod is provided with an outer thread groove, and the outer wall of the inner thread groove is in threaded rotation connection with the outer wall of the outer thread groove.

Preferably, the top of the extrusion stem is fixedly connected with a rotary block at the position above the upper mounting plate, and a first rubber block is attached to the bottom of the extrusion stem.

Preferably, the bottom end of the rotating plate is provided with a second rubber block in an attached mode, and the top end of the clamping block is provided with an arc chamfer.

Preferably, the top end of the upper mounting plate is fixedly connected with a first spring, and one end of the first spring is fixedly connected with the bottom end of the rotating plate.

Preferably, the spout has been seted up on the top of lower mounting panel, the bottom fixedly connected with draw runner of circuit breaker body, the outer wall of draw runner and the inner wall sliding connection of spout.

Preferably, the limiting grooves are formed in the two sides of the inner wall of the sliding groove, the limiting strips are fixedly connected to the two sides of the sliding strip, and the outer walls of the limiting strips are connected with the inner walls of the limiting grooves in the corresponding positions in a sliding mode.

Preferably, the middle part of lower mounting panel has seted up the second rotary trough, the inside rotation in second rotary trough is connected with the lever, the bayonet socket has been seted up to the bottom of draw runner, the inside of bayonet socket and the one end activity joint of lever.

Preferably, the top end of the lever is fixedly connected with a second spring, and one end of the second spring is fixedly connected with the bottom end of the lower mounting plate.

Preferably, fixed establishment includes a plurality of fixed blocks, two fixed blocks of the equal fixedly connected with in bottom of lower mounting panel and the top of last mounting panel, it is a plurality of the fixed orifices has all been seted up in the front of fixed block.

The invention has the technical effects and advantages that:

(1) the rotary plate, the clamping block and the extrusion rod are arranged, the rotary plate is extruded downwards by the extrusion rod to rotate, the clamping block is extruded by the rotary plate, and the clamping block is positioned, so that the breaker can be installed between the upper installation plate and the lower installation plate, the phenomenon of instable installation caused by repeated disassembly and assembly of the breaker is avoided by the extrusion fixing mode, and the installation stability of the breaker is improved;

(2) according to the invention, by means of the arrangement of the bayonet and the lever, the slide bar is inserted into the sliding groove, and one end of the lever is clamped into the bayonet along with the movement of the slide bar, so that the slide bar is positioned in the sliding groove, and the stability of the circuit breaker is further improved.

Drawings

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

FIG. 2 is a side sectional structural schematic view of the present invention.

Fig. 3 is a schematic view of the enlarged structure at a of fig. 2 according to the present invention.

Fig. 4 is a schematic view of the enlarged structure at the position B of fig. 1 according to the present invention.

Fig. 5 is a schematic view of the enlarged structure at the point C in fig. 2 according to the present invention.

In the figure: 1. a circuit breaker body; 2. a lower mounting plate; 3. an upper mounting plate; 4. a first rotary groove; 5. rotating the plate; 6. a clamping block; 7. a jack; 8. an extrusion stem; 9. an internal thread groove; 10. an outer thread groove; 11. rotating the block; 12. a first rubber block; 13. a second rubber block; 14. a first spring; 15. a chute; 16. a slide bar; 17. a limiting groove; 18. a limiting strip; 19. a second rotary groove; 20. a lever; 21. a bayonet; 22. a second spring; 23. a fixed block; 24. and (7) fixing holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a self-protection type circuit breaker shell as shown in figures 1-5, which comprises a circuit breaker body 1 and the circuit breaker body 1, wherein a lower mounting plate 2 is arranged below the circuit breaker body 1, the circuit breaker body 1 is slidably arranged at the top end of the lower mounting plate 2, an upper mounting plate 3 is arranged above the circuit breaker body 1, a first rotating groove 4 is formed in the middle of the upper mounting plate 3, a rotating plate 5 is rotatably connected inside the first rotating groove 4, a jack 7 is formed in the top end of the upper mounting plate 3 and positioned on the front side of the first rotating groove 4, an extrusion rod 8 is inserted into the inner wall of the jack 7, a fixture block 6 is fixedly connected to the top end of the circuit breaker body 1, the extrusion rod 8 moves downwards to extrude the rotating plate 5 to abut against the fixture block 6, so that the circuit breaker body 1 is arranged between the lower mounting plate 2 and the upper mounting plate 3, and fixing mechanisms are arranged, the two fixing mechanisms have the same structure;

an inner thread groove 9 is formed in the inner wall of the jack 7, an outer thread groove 10 is formed in the outer wall of the extrusion rod 8, the outer wall of the inner thread groove 9 is in threaded connection with the outer wall of the outer thread groove 10, so that the inner thread groove 9 is matched with the outer thread groove 10, the extrusion rod 8 can move up and down through rotation, meanwhile, the extrusion rod 8 which stops rotating can achieve a self-locking function after stopping rotating, the rotating plate 5 can not rotate any more, and the installation stability is further improved;

the top end of the extrusion rod 8 is fixedly connected with a rotary block 11 at a position above the upper mounting plate 3, the bottom end of the extrusion rod 8 is attached with a first rubber block 12, the rotary block 11 is convenient for the extrusion rod 8 to rotate, and the first rubber block 12 enables the extrusion rod 8 to be extruded through the first rubber block 12 when the rotary plate 5 is extruded, so that the abrasion generated by extrusion is reduced, and the service life is prolonged;

the second rubber block 13 is attached to the bottom end of the rotating plate 5, the arc chamfer is formed in the top end of the clamping block 6, the second rubber block 13 enables the rotating plate 5 to rotate to squeeze the clamping block 6, abrasion caused by squeezing is reduced, and the arc chamfer of the clamping block 6 enables the clamping block 6 not to be in contact with the second rubber block 13 and then the second rubber block 13 is not damaged;

the top end of the upper mounting plate 3 is fixedly connected with a first spring 14, one end of the first spring 14 is fixedly connected with the bottom end of the rotating plate 5, and the first spring 14 is driven to extend when the rotating plate 5 rotates anticlockwise to extrude the fixture block 6, so that when the extrusion rod 8 does not extrude the rotating plate 5, the rotating plate 5 automatically rotates clockwise under the elastic action of the first spring 14, the fixture block 6 is not extruded any more, the disassembly of the breaker body 1 is facilitated, and the disassembly convenience of the breaker body 1 is improved;

the top end of the lower mounting plate 2 is provided with a sliding groove 15, the bottom end of the circuit breaker body 1 is fixedly connected with a sliding strip 16, the outer wall of the sliding strip 16 is connected with the inner wall of the sliding groove 15 in a sliding manner, and the arrangement of the sliding groove 15 and the sliding strip 16 enables the circuit breaker body 1 to play a guiding role during installation;

limiting grooves 17 are formed in two sides of the inner wall of the sliding groove 15, limiting strips 18 are fixedly connected to two sides of the sliding strip 16, the outer walls of the two limiting strips 18 are connected with the inner walls of the limiting grooves 17 at corresponding positions in a sliding mode respectively, and the limiting grooves 17 limit the limiting strips 18, so that after the sliding strip 16 is inserted into the sliding groove 15, the sliding strip cannot move vertically any more;

a second rotary groove 19 is formed in the middle of the lower mounting plate 2, a lever 20 is rotatably connected inside the second rotary groove 19, a bayonet 21 is formed in the bottom end of the sliding strip 16, the inside of the bayonet 21 is movably clamped with one end of the lever 20, one end of the lever 20 is in a semi-spherical shape, and the lever 20 is rotated at a specific angle to be clamped into the bayonet 21, so that the sliding strip 16 inserted into the sliding groove 15 is horizontally positioned, the sliding strip 16 is prevented from moving horizontally, and the mounting stability of the circuit breaker body 1 is further improved;

the top end of the lever 20 is fixedly connected with a second spring 22, one end of the second spring 22 is fixedly connected with the bottom end of the lower mounting plate 2, the second spring 22 is always in a contracted state, so that a force is always exerted on the lever 20, the lever 20 always tends to rotate anticlockwise, one end of the lever 20 can be separated from the bayonet 21 only by lifting the other end of the lever 20 upwards by hand and driving the lever 20 to rotate clockwise, the sliding strip 16 can conveniently slide out of the sliding groove 15, and the convenience in disassembling the circuit breaker body 1 is further improved;

fixing mechanism includes a plurality of fixed blocks 23, and two fixed blocks 23 of the equal fixedly connected with in bottom of lower mounting panel 2 and the top of last mounting panel 3, fixed orifices 24 have all been seted up in the front of a plurality of fixed blocks 23, pass fixed orifices 24 through the screw and twist the inside of block terminal to fix fixed block 23, thereby will descend mounting panel 2 and last mounting panel 3 to fix with the block terminal, the installation of the circuit breaker body 1 of being convenient for.

The working principle of the invention is as follows: the circuit breaker body 1 is taken up, the sliding strip 16 is inserted into the sliding groove 15, the circuit breaker body 1 is pushed inwards until the sliding strip 16 is contacted with one end of the lever 20, the lever 20 is squeezed to enable the lever 20 to rotate clockwise, meanwhile, the second spring 22 contracts until the sliding strip 16 moves to abut against the inner wall of the sliding groove 15, the bayonet 21 moves to the lever 20 at the moment, the bottom end of the sliding strip 16 does not squeeze the lever 20 any more, under the elastic action of the second spring 22, the lever 20 is driven to rotate anticlockwise and is clamped into the bayonet 21, the rotary block 11 is rotated clockwise, the squeezing rod 8 moves downwards, the rotary plate 5 is squeezed by the first rubber block 12, the rotary plate 5 rotates anticlockwise, meanwhile, the first spring 14 is driven to extend until the second rubber block 13 abuts against the clamping block 6, the rotary block 11 stops rotating, and installation of the circuit breaker body 1 is completed.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "secured" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integral to; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The standard parts used by the invention can be purchased from the market, and the special-shaped parts can be customized according to the description and the description of the attached drawings.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A self-protection breaker shell comprises a breaker body (1) and is characterized in that, the circuit breaker comprises a circuit breaker body (1), a lower mounting plate (2) is arranged below the circuit breaker body (1), the breaker body (1) is arranged at the top end of the lower mounting plate (2) in a sliding manner, the upper mounting plate (3) is arranged above the breaker body (1), a first rotary groove (4) is arranged in the middle of the upper mounting plate (3), a rotary plate (5) is rotatably connected inside the first rotary groove (4), the top end of the upper mounting plate (3) and the front surface of the first rotary groove (4) are provided with jacks (7), the inner wall of the jack (7) is inserted with an extrusion rod (8), the top end of the breaker body (1) is fixedly connected with a clamping block (6), the bottom of lower mounting panel (2) and the top of last mounting panel (3) all are provided with fixed establishment.

2. The self-protection circuit breaker casing as claimed in claim 1, wherein the inner wall of the insertion hole (7) is provided with an inner thread groove (9), the outer wall of the pressing rod (8) is provided with an outer thread groove (10), and the outer wall of the inner thread groove (9) is in threaded and rotating connection with the outer wall of the outer thread groove (10).

3. The self-protection circuit breaker casing according to claim 1, wherein a rotary block (11) is fixedly connected to the top end of the extrusion rod (8) and located above the upper mounting plate (3), and a first rubber block (12) is attached to the bottom end of the extrusion rod (8).

4. The self-protection circuit breaker casing as claimed in claim 1, wherein a second rubber block (13) is attached to a bottom end of the rotating plate (5), and an arc chamfer is formed at a top end of the clamping block (6).

5. A self-protecting circuit breaker housing as claimed in claim 1, wherein a first spring (14) is fixedly connected to a top end of the upper mounting plate (3), and one end of the first spring (14) is fixedly connected to a bottom end of the rotating plate (5).

6. The self-protection circuit breaker casing according to claim 1, wherein a sliding groove (15) is formed at the top end of the lower mounting plate (2), a sliding strip (16) is fixedly connected to the bottom end of the circuit breaker body (1), and the outer wall of the sliding strip (16) is slidably connected with the inner wall of the sliding groove (15).

7. The self-protection circuit breaker casing according to claim 6, wherein both sides of the inner wall of the sliding groove (15) are provided with limiting grooves (17), both sides of the sliding strip (16) are fixedly connected with limiting strips (18), and the outer walls of the two limiting strips (18) are slidably connected with the inner walls of the limiting grooves (17) at corresponding positions respectively.

8. The self-protection circuit breaker casing as claimed in claim 6, wherein a second rotary groove (19) is formed in the middle of the lower mounting plate (2), a lever (20) is rotatably connected to the inside of the second rotary groove (19), a bayonet (21) is formed in the bottom end of the slide bar (16), and the inside of the bayonet (21) is movably clamped with one end of the lever (20).

9. A self-shielding circuit breaker housing as claimed in claim 8, wherein a second spring (22) is fixedly connected to a top end of the lever (20), and one end of the second spring (22) is fixedly connected to a bottom end of the lower mounting plate (2).

10. The self-protection circuit breaker casing as claimed in claim 1, wherein the fixing mechanism comprises a plurality of fixing blocks (23), two fixing blocks (23) are fixedly connected to the bottom end of the lower mounting plate (2) and the top end of the upper mounting plate (3), and fixing holes (24) are formed in the front faces of the fixing blocks (23).