Disconnecting switch

Abstract

The invention relates to a switch, in particular to a disconnecting switch. The invention provides a technical scheme as follows: the disconnecting switch is characterized in that elliptic storage grooves are respectively arranged on corresponding positions of a base and an upper shell, two sides of a moving contact terminal support are respectively provided with a convex column, the moving contact terminal support is movably arranged in the elliptic storage groove by virtue of the convex column, a spring or/and a tension spring are arranged between the moving contact terminal support and the base, one end of the spring or/and the tension spring acts on the base, the other end acts on the moving contact terminal support, and an acting point of the spring or/and the tension spring on the moving contact terminal support is disposed above the convex column and close to the convex column. By adopting the scheme, the weaknesses in the prior art can be overcome, and the novel disconnecting switch is convenient to operate and high in closing and opening speed and has an indication function.

Description

technical field [0001] The invention relates to a switch, in particular to an isolating switch. Background technique [0002] The existing isolating switch structure is a multi-contact isolating switch. A plurality of moving contacts move up and down linearly under the direct drive of the handle and the connecting rod to realize the separation and contact of the dynamic and the static, thereby realizing the closing and opening of the isolating switch. The product has some shortcomings: 1. The use of precious metals is large, the production cost is high, and the reliability is also reduced due to the large number of contacts; 2. There is no quick closing device, and the closing speed of the product depends on the speed of the human-operated handle. It is beneficial to the electrical life of the product; 3. There is no arc strike pin, the arc stays between the dynamic and static contacts for a long time, and the contacts of the product are easily burned during the opening and ...

AI Technical Summary

Problems solved by technology

[0002] The existing isolating switch structure is a multi-contact isolating switch. A plurality of moving contacts move up and down linearly under the direct drive of the handle and the connecting rod to realize the separation and contact of the dynamic and the static, thereby realizing the closing and opening of the isolating switch. The product has some shortcomings: 1. The use of precious metals is large, the production cost is high, and the reliability is also reduced due to the large number of contacts; 2. There is no quick closing device, and the closing speed of the product depends on the speed of the human-operated handle. It is beneficial to the electrical life of the product; 3. There is no arc strike pin, the arc stays between the dynamic and static contacts for a long time, and the contacts of the product are easily burned during the opening and closing operations; 4. The product does not have an indicating device to indicate the contact of the product. The position of the head or the opening and closing state will bring a lot of inconvenience to the user

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