CN222507481U - A miniature circuit breaker that is easy to disassemble and assemble - Google Patents

Abstract

The utility model relates to the technical field of circuit breakers and discloses a miniature circuit breaker convenient to assemble and disassemble, which comprises a circuit breaker shell, wherein a switch is rotationally connected to the surface of the circuit breaker shell, a first fixing column is fixedly connected to one side of the circuit breaker shell, a first limit groove is formed in the surface of the circuit breaker shell, a fixing plate is fixedly connected to one side of the first fixing column, a limit rod is slidingly connected to one side of the fixing plate, and a limit hole is formed in one side of the switch. According to the utility model, the first limit groove is formed in the surface of the shell of the circuit breaker, the switch is disconnected and rotated into the first limit groove when a maintenance worker performs power-off maintenance, and then the limit rod is moved, so that the limit rod enters the limit hole to limit the switch, and the switch cannot be turned on, thus the function of preventing false touch is achieved, and the situation that the maintenance worker touches the switch by mistake during maintenance is prevented from electric shock.

Description

Miniature circuit breaker convenient to disassemble and assemble

Technical Field

The utility model relates to the field of circuit breakers, in particular to a miniature circuit breaker convenient to assemble and disassemble.

Background

A circuit breaker refers to a switching device capable of closing, carrying and opening a current under normal circuit conditions and closing, carrying and opening a current under abnormal circuit conditions within a prescribed time. The circuit breaker is divided into a high-voltage circuit breaker and a low-voltage circuit breaker according to the application range, and the division of a high-voltage boundary line and a low-voltage boundary line is fuzzy, and is generally called as a high-voltage electrical appliance with the voltage of more than 3 kV.

In the prior art, publication number CN210429700U discloses a circuit breaker, and this technical scheme can place some components in the upper cover, has saved the space of inferior valve, makes can place more components in the inferior valve, has promoted the effective utilization ratio in space, provides more functions, has increased practicality and innovation. The anti-false-touch effect of the open circuit of the patent switch is poor, so that a maintenance worker can easily switch to close the switch when the circuit breaker is maintained, and the maintenance worker is easy to generate electric shock to cause damage to human bodies, so that the further improvement is still needed.

Disclosure of utility model

The utility model aims to solve the technical problem of overcoming the defects in the prior art and providing a miniature circuit breaker convenient to assemble and disassemble.

In order to achieve the above purpose, the present application provides the following technical solutions:

The utility model provides a miniature circuit breaker of convenient dismouting, includes the circuit breaker shell, circuit breaker shell surface rotates and is connected with the switch, circuit breaker shell one side fixedly connected with first fixed column, circuit breaker shell surface has been seted up first spacing groove first fixed column one side fixedly connected with fixed plate, fixed plate one side sliding connection has the gag lever post, spacing hole has been seted up to switch one side. The circuit breaker shell surface has seted up the second spacing groove, circuit breaker shell surface fixedly connected with first mounting panel, the inside fixedly connected with of second spacing groove two second fixed columns of shown, two second fixed column surface slip cap is equipped with the second mounting panel, second mounting panel upper end rotation is connected with the lead screw.

Through the scheme, the limit groove is formed in the surface of the circuit breaker shell, the switch is disconnected and rotated to the first limit groove when a maintenance worker performs power-off maintenance, then the limit rod is moved, the limit rod enters the limit hole to limit the switch, the switch cannot be turned on, electric shock is prevented from being caused by the fact that the worker mistakenly touches the switch to be turned on when the maintenance is performed, the hand wheel is rotated when the hand wheel is installed, the screw rod is rotated, so that the screw rod is in threaded connection with the circuit breaker shell, the screw rod moves downwards when the screw rod rotates, because the second mounting plate is slidably sleeved on the surface of the second fixing column, the screw rod moves downwards to drive the second mounting plate to move downwards, and the first mounting plate and the second mounting plate are clamped on the mounting guide rail to complete the installation.

Further, three wiring holes are formed in the upper end of the circuit breaker shell, and the electric wires are connected to the circuit breaker.

Further, a plurality of wire fixing holes are formed in the surface of the circuit breaker shell. Through above-mentioned scheme, there is the fixed screw in the solidus hole to fix the electric wire.

Further, the circuit breaker shell both sides are all fixedly connected with heat absorption board, two heat absorption board surfaces have all seted up a plurality of louvres. Through the scheme, the heat absorbing plate can absorb heat generated by the circuit breaker during working and is discharged through the heat radiating holes.

Further, two springs are fixedly connected to the surface of the circuit breaker shell. Through the scheme, the guide rail compression spring is installed during installation, and the spring is elastically deformed to generate opposite acting force, so that the installation is firmer.

Further, the upper end of the screw rod penetrates through the breaker shell and is fixedly connected with a hand wheel. Through the scheme, the screw rod can be rotated by rotating the hand wheel, and the screw rod can only move downwards when rotating.

Further, stop block is connected fixedly to one side of the stop lever, and the stop lever is prevented from falling off.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

Through having seted up first spacing groove on circuit breaker shell surface, turn off the switch and rotate the switch to first spacing inslot when maintenance workman carries out outage maintenance, then remove the gag lever post, make the gag lever post get into spacing downthehole carry out the spacing to the switch and make the switch unable rotation closed, the function of preventing the mistake touch has just played like this, prevent maintenance workman's mistake touch switch emergence when carrying out the maintenance electric shock's condition, rotate the hand wheel and drive the lead screw and rotate down move when installing, because second mounting panel slip cap is established on second fixed column surface, so the lead screw down move and drive second mounting panel down move, make first mounting panel and second mounting panel joint accomplish the installation on the mounting rail promptly, this device easy operation, make installation effectiveness obtain improving.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present application;

FIG. 2 is an enlarged view of the structure of FIG. 1A according to the present application;

FIG. 3 is a schematic view of a spring mounting structure of the present application;

fig. 4 is a schematic view of a second mounting plate mounting structure according to the present application.

In the figure:

1. The circuit breaker comprises a circuit breaker shell, a wiring hole, a 3 wire fixing hole, a 4, a switch, a 5, a heat absorption plate, a6, a heat dissipation hole, a 7, a limit hole, a 8, a first limit groove, a 9, a limit rod, a 10, a limit block, a 11, a fixed plate, a 12, a first fixed column, a 13, a second limit groove, a14, a second fixed column, a 15, a spring, a 16, a first mounting plate, a 17, a second mounting plate, a 18, a screw rod, a 19 and a hand wheel.

Detailed Description

The present utility model will be described in further detail below with reference to the drawings and preferred embodiments, so that those skilled in the art can better understand the technical solutions of the present utility model. All other embodiments, based on the embodiments of the utility model, which would be apparent to one of ordinary skill in the art without making any inventive effort are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.

In addition, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "configured," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, directly connected, indirectly connected through an intermediate medium, or communicating between two members. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.

Referring to fig. 1 and 2, a miniature circuit breaker convenient to disassemble and assemble in this embodiment includes a circuit breaker housing 1, a switch 4 is rotatably connected to the surface of the circuit breaker housing 1, a first fixing column 12 is fixedly connected to one side of the circuit breaker housing 1, a fixing plate 11 is fixedly connected to one side of the first fixing column 12 of a first limit groove 8 is provided on the surface of the circuit breaker housing 1, a limit rod 9 is slidably sleeved on one side of the fixing plate 11, and a limit hole 7 is provided on one side of the switch 4.

Referring to fig. 3 and 4, a second limiting groove 13 is formed in the surface of the circuit breaker housing 1, a first mounting plate 16 is fixedly connected to the surface of the circuit breaker housing 1, two second fixing columns 14 are fixedly connected to the inside of the second limiting groove 13, a second mounting plate 17 is slidingly connected to the surfaces of the two second fixing columns 14, and a screw rod 18 is rotatably connected to the upper end of the second mounting plate 17.

Referring to fig. 1, 2 and 3, three wiring holes 2 are formed at the upper end of a circuit breaker housing 1, so that wires are connected into the circuit breaker housing 1 at the wiring holes 2, a plurality of wire fixing holes 3 are formed on the surface of the circuit breaker housing 1, fixing screws are arranged in the wire fixing holes 3 to fix the wires, heat absorbing plates 5 are fixedly connected to two sides of the circuit breaker housing 1, a plurality of heat dissipation holes 6 are formed on the surfaces of the two heat absorbing plates 5, the heat absorbing plates 5 can absorb heat generated during the operation of the circuit breaker, two springs 15 are fixedly connected to the surface of the circuit breaker housing 1, guide rail compression springs 15 are installed during installation, elastic deformation of the springs 15 generates an opposite acting force, the installation is firmer, the upper end of a screw 18 penetrates through the circuit breaker housing 1 and is fixedly connected with a hand wheel 19, the hand wheel 19 is rotated, the screw 18 can rotate, the screw 18 can only move downwards when the screw 18 rotates, one side of a limit block 10 is fixedly connected with one side of the limit block 9, and the limit block 10 prevents the limit rod 9 from falling.

In this embodiment, through having seted up first spacing groove 8 on circuit breaker shell 1 surface, break off switch 4 and rotate switch 4 to first spacing inslot 8 when the maintenance workman carries out outage maintenance, then remove gag lever post 9, make gag lever post 9 get into spacing hole 7 and carry out spacing to switch 4 and make switch 4 can not rotate and close, so just played the function of preventing the mistake touch, prevent that the maintenance workman from touching switch 4 mistake when carrying out the maintenance and taking place the condition of electric shock, rotate hand wheel 19 and drive lead screw 18 and rotate when installing again, because lead screw 18 and circuit breaker shell 1 threaded connection, lead screw 18 rotates and will move down, because second mounting panel 17 slip cap is established on second fixed column 14 surface, so lead screw 18 downwardly moving drives second mounting panel 17 downwardly moving, make first mounting panel 16 and second mounting panel 17 joint accomplish the installation promptly on the mounting rail, this device easy operation, make installation effectiveness obtain improving.

The working principle of the embodiment is that when the installation is carried out, the first installation plate 16 and the second installation plate 17 are aligned with the installation guide rail, then the hand wheel 19 is rotated, the hand wheel 19 rotates to drive the screw rod 18 to rotate, and because the screw rod 18 is in threaded connection with the circuit breaker shell 1, the screw rod 18 rotates to enable the second installation plate 17 to move downwards and drive the second installation plate 17 to move downwards together to clamp the installation guide rail, the installation guide rail compresses the spring 15 when the installation is carried out, the spring 15 is elastically deformed to generate opposite acting force to enable the installation to be firmer, the first limit groove 8 is formed in the surface of the circuit breaker shell 1, when a maintenance worker carries out power-off maintenance, the switch 4 is disconnected, the switch 4 is rotated into the first limit groove 8, then the limit rod 9 is moved, the limit rod 9 enters the limit hole 7 to limit the switch 4, so that the switch 4 cannot be rotated to be closed, a false touch preventing function is achieved, and the situation that a maintenance worker is in the process of carrying out electric shock.

The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Claims (7)

1. A miniature circuit breaker convenient to disassemble and assemble is characterized in that a switch (4) is rotationally connected to the surface of the circuit breaker shell (1), a first fixing column (12) is fixedly connected to one side of the circuit breaker shell (1), a first limit groove (8) is formed in the surface of the circuit breaker shell (1), a fixing plate (11) is fixedly connected to one side of the first fixing column (12), a limit rod (9) is slidingly connected to one side of the fixing plate (11), a limit hole (7) is formed in one side of the switch (4), a second limit groove (13) is formed in the surface of the circuit breaker shell (1), a first mounting plate (16) is fixedly connected to the surface of the circuit breaker shell (1), two second fixing columns (14) are fixedly connected to the inside of the second limit groove (13), a second mounting plate (17) is arranged on the surface sliding sleeve of the second fixing column (14), and a screw rod (18) is rotationally connected to the upper end of the second mounting plate (17).

2. The miniature circuit breaker convenient to disassemble and assemble as claimed in claim 1, wherein three wiring holes (2) are formed in the upper end of the circuit breaker shell (1).

3. The miniature circuit breaker convenient to disassemble and assemble as claimed in claim 2, wherein a plurality of wire fixing holes (3) are formed in the surface of the circuit breaker shell (1).

4. The miniature circuit breaker convenient to disassemble and assemble, as set forth in claim 3, characterized in that the two sides of the circuit breaker housing (1) are fixedly connected with heat absorbing plates (5), and a plurality of heat dissipation holes (6) are formed on the surfaces of the two heat absorbing plates (5).

5. The miniature circuit breaker convenient to disassemble and assemble as claimed in claim 1, wherein the surface of the circuit breaker shell (1) is fixedly connected with two springs (15).

6. The miniature circuit breaker convenient to disassemble and assemble as claimed in claim 1, wherein the upper end of the screw rod (18) penetrates through the circuit breaker shell (1) and is fixedly connected with a hand wheel (19).

7. The miniature circuit breaker convenient to disassemble and assemble as claimed in claim 6, wherein one side of the limiting rod (9) is fixedly connected with a limiting block (10).