CN204155874U

CN204155874U - Breaker of plastic casing

Info

Publication number: CN204155874U
Application number: CN201420633516.5U
Authority: CN
Inventors: 南继泽
Original assignee: ZHEJIANG JINGKAI ELECTRIC Co Ltd
Current assignee: ZHEJIANG JINGKAI ELECTRIC Co Ltd
Priority date: 2014-10-29
Filing date: 2014-10-29
Publication date: 2015-02-11
Anticipated expiration: 2024-10-29

Abstract

The utility model discloses a kind of breaker of plastic casing, comprise Shell of circuit breaker and handle, described handle is fixedly connected with Shell of circuit breaker pivot pin, described handle is formed primarily of the first handle bar and the second handle bar, described first handle bar is fixedly connected with Shell of circuit breaker pivot pin, described second handle bar is fixedly connected with one end pivot pin of the first handle bar, described first handle bar offers and rotates for the second handle bar the groove be embedded within it, this utility model has that cost is low, structure is simple, the feature of easy to operate and rapid operation.

Description

Breaker of plastic casing

Technical field

The utility model relates to a kind of circuit breaker, and more particularly, it relates to a kind of breaker of plastic casing.

Background technology

Breaker of plastic casing, connects, disjunction and carrying rated operational current in circuit, and can transship in load, short circuit, under-voltage carry out reliable open circuit protection.The dynamic and static contact of circuit breaker and feeler lever are designed to parallel shape, and breaking capacity is high, and the electrodynamic repulsion force that current limiting characteristic are often used in by force short circuit generation makes dynamic and static contact disconnect.

At present, the breaker of plastic casing utilizing manual closing on market, it comprises Shell of circuit breaker and handle, and handle is fixedly connected with Shell of circuit breaker pivot pin.Although this breaker of plastic casing handle is shorter, and be connected with handle have energy-stored spring and reaction force spring, manual operation breaker of plastic casing is difficult to closed, effort is compared in operation.

Utility model content

For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of laborsaving and improve the breaker of plastic casing had in space.

For achieving the above object, the utility model provides following technical scheme:

A kind of breaker of plastic casing, comprise Shell of circuit breaker and handle, described handle is fixedly connected with Shell of circuit breaker pivot pin, described handle is formed primarily of the first handle bar and the second handle bar, described first handle bar is fixedly connected with Shell of circuit breaker pivot pin, described second handle bar is fixedly connected with one end pivot pin of the first handle bar, described first handle bar offers and rotates for the second handle bar the groove be embedded within it.

By adopting technique scheme, when needs hands off device, initial condition is embedded the second handle bar pull-out in the first handle bar groove, lengthen the length of the first handle bar, because be that the first handle bar is fixedly connected with Shell of circuit breaker pivot pin, distance stress point is elongated, thus improve the moment of torsion of the first handle bar, reach labour-saving effect, again because the first handle bar is that pivot pin is fixedly connected with the second handle bar, easy to operate, the second handle bar is embedded in groove in initial condition, saves taking up room of the second handle bar.

The utility model is set to further: be connected with tension spring between described groove bottom wall and the second handle bar.

By adopting technique scheme, the tension spring be connected between groove bottom wall with the second handle bar, outer and after completing close circuit breaker for being pulled out to groove at the second handle bar, second handle bar is returned to initial condition, while easy to operate, preventing from, because forgetting, the second handle bar is returned to initial condition, encountering the second handle bar by mistake and make it fracture or opened by circuit breaker, impact normally works.

The utility model is set to further: described second handle bar is provided with some reinforcements, and described some reinforcements are interspersed.

By adopting technique scheme, the second handle bar being distributed with some the reinforcements be crisscross arranged, for increasing the intensity of the second handle bar, preventing it from use fractureing, increase it and be provided with the life-span.

The utility model is set to further: described first handle bar and the second handle bar are made by vulcanie, all with layer of metal sheet on the first handle bar and the second handle bar, sheet metal is electroplate with one deck insulating material.

By adopting technique scheme, the the first handle bar be made up of vulcanie and the second handle bar, quality is light, old low, and hardness is high, long service life, all with layer of metal sheet on the first handle bar and the second handle bar, in the useful life of both hardness raisings of further increase by first handle bar and the second handle bar, one deck insulating material that sheet metal is electroplated, for insulation, prevents electric leakage from damaging human body.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of the utility model breaker of plastic casing embodiment;

Fig. 2 is the handle schematic diagram 1 of the utility model breaker of plastic casing embodiment;

Fig. 3 is the handle schematic diagram 2 of the utility model breaker of plastic casing embodiment.

In figure: 1, Shell of circuit breaker; 2, handle; 21, the first handle bar; 211, groove; 22, the second handle bar; 3, spring; 4, sheet metal; 5, reinforcement.

Embodiment

Referring to figs. 1 through Fig. 3, the utility model breaker of plastic casing embodiment is described further.

A kind of breaker of plastic casing, comprise Shell of circuit breaker 1 and handle 2, described handle 2 is fixedly connected with Shell of circuit breaker 1 pivot pin, described handle 2 is formed primarily of the first handle bar 21 and the second handle bar 22, described first handle bar 21 is fixedly connected with Shell of circuit breaker 1 pivot pin, described second handle bar 22 is fixedly connected with one end pivot pin of the first handle bar 21, described first handle bar 21 offers and rotates for the second handle bar 22 groove 211 be embedded within it.When needs hands off device, the the second handle bar 22 initial condition be embedded in the first handle bar 21 inner groovy 211 pulls out, lengthen the length of the first handle bar 21, because be that the first handle bar 21 is fixedly connected with Shell of circuit breaker 1 pivot pin, distance stress point is elongated, thus improve the moment of torsion of the first handle bar 21, reach labour-saving effect, again because the first handle bar 21 is that pivot pin is fixedly connected with the second handle bar 22, easy to operate, second handle bar 22 is embedded in groove 211 in initial condition, saves taking up room of the second handle bar 22.

Tension spring 3 is connected with between described groove 211 diapire and the second handle bar 22.The tension spring 3 be connected between groove 211 diapire with the second handle bar 22, outer and after completing close circuit breaker for being pulled out to groove 211 at the second handle bar 22, second handle bar 22 is returned to initial condition, while easy to operate, prevent from, because forgetting, the second handle bar 22 is returned to initial condition, encounter the second handle bar 22 by mistake and make it fracture or opened by circuit breaker, impact normally works.

Described second handle bar 22 is provided with some reinforcements 5, and described some reinforcements 5 are interspersed.Second handle bar 22 is distributed with some the reinforcements be crisscross arranged 5, for increasing the intensity of the second handle bar 22, prevents it from use fractureing, increase it and be provided with the life-span.

Described first handle bar 21 and the second handle bar 22 are made by vulcanie, all with layer of metal sheet 4 on the first handle bar 21 and the second handle bar 22, sheet metal 4 are electroplate with one deck insulating material.The first handle bar 21 and the second handle bar 22 be made up of vulcanie, quality is light, old low, hardness is high, long service life, all with layer of metal sheet 4 on the first handle bar 21 and the second handle bar 22, further increases the useful life of both hardness raisings of the first handle bar 21 and the second handle bar 22, one deck insulating material of plating on sheet metal 4 is used for insulation, prevents electric leakage from damaging human body.

The above is only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.

Claims

1. a breaker of plastic casing, comprise Shell of circuit breaker and handle, described handle is fixedly connected with Shell of circuit breaker pivot pin, it is characterized in that: described handle is formed primarily of the first handle bar and the second handle bar, described first handle bar is fixedly connected with Shell of circuit breaker pivot pin, described second handle bar is fixedly connected with one end pivot pin of the first handle bar, described first handle bar offers and rotates for the second handle bar the groove be embedded within it.

2. breaker of plastic casing according to claim 1, is characterized in that: be connected with tension spring between described groove bottom wall and the second handle bar.

3. breaker of plastic casing according to claim 2, is characterized in that: described second handle bar is provided with some reinforcements, and described some reinforcements are interspersed.

4. breaker of plastic casing according to claim 3, is characterized in that: described first handle bar and the second handle bar are made by vulcanie, all with layer of metal sheet on the first handle bar and the second handle bar, sheet metal is electroplate with one deck insulating material.