Isolating switch

Abstract

An isolating switch provided by the present invention comprises a shell, a shell cover, an operating mechanism, a contact system and a switch-on and switch-off indicating member, the contact system comprises a support, the support is provided with a mounting groove, the support is provided with a sliding seat sliding in cooperation with the mounting groove, and an energy storage spring is arranged between the sliding seat and a moving contact. The operating mechanism comprises a handle, a retainer and a second reset spring, the handle is provided with a linkage protruding block used for driving the sliding seat to drive the support to move, a containing groove is formed in the right side, located above the support, in the shell, and the second reset spring is located in the containing groove and abuts against one end of the retainer. The retainer is provided with a limiting block which is blocked on a closing motion track of the linkage protruding block, the support is provided with a clamping hook, the top of the clamping hook is bent towards one side of the containing groove, and the retainer is provided with a stop block which is blocked on a downward displacement track of the clamping hook. The isolating switch is simple in structure, convenient to assemble, high in stability and convenient to operate.

Description

technical field [0001] The invention relates to the technical field of electrical appliances, in particular to an isolating switch. Background technique [0002] The small isolating switch is suitable for power distribution and control circuits with AC 50Hz or 60Hz and rated working voltage of 220 / 380V and below. It is mainly used as the main switch of terminal appliances, and can also be used to control various types of motors, small power appliances and lighting, etc. , Widely used in industrial and mining enterprises, high-rise buildings, commercial and family and other places. [0003] The isolating switch includes a housing, an operating mechanism, a contact system, and an opening and closing indicating mechanism. The design of the existing isolating switch operating mechanism is unreasonable, which may easily lead to too long closing time of the switch, and easy contact between the moving contact and the static contact. Arcing is caused, and even the contacts are burn...

AI Technical Summary

Problems solved by technology

"It achieves fast closing through the cooperation of the handle, drive seat, energy storage spring, limit assembly, torsion spring, moving contact bracket and return spring. There are many parts and the installation is too concentrated, resulting in low efficiency for workers to assemble the switch.

Both the energy storage spring and the torsion spring store energy and limit the position through circumferential torsion, which has low stability and increases the rotational torque of the handle, making it difficult to open and close the control switch.

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