Energy-storage spring operating mechanism of low-voltage isolating switch

Abstract

The invention discloses an energy-storage spring operating mechanism of a low-voltage isolating switch, which is installed at the top of the low-voltage isolation switch. The energy-storage spring operating mechanism comprises an operating shaft, shifting rods and a stroke compensation part, wherein the operating shaft is installed at the top of the low-voltage isolating switch and can rotate freely along a radial direction; two shifting rods are provided, are perpendicular to each other and are fixedly arranged at the bottom of the operating shaft; a structure of the stroke compensation part is as follows: a spring installation shaft is hinged onto the operating shaft, and a first elongated through hole is formed in a movable end of the spring; a spring sleeves the spring installation shaft; a rotating shaft is hinged to the top of the low-voltage isolating switch; a short arm and a long arm are respectively perpendicularly fixed on the rotating shaft; the bottom end of a first shaft is fixed between the long arm and the short arm and penetrates through the first elongated through hole; a second elongated through hole is formed in a movable end of the long arm, and a second shaft can be driven by the shifting rod to slide along the second elongated hole; and a cylindrical projection is fixedly formed at the bottom of the long arm. By designing the stroke compensation part, the energy-storage spring operating mechanism can ensure that the switch action is unrelated to the manual operation.

Description

technical field [0001] The invention belongs to the technical field of electrical equipment, in particular to an energy storage spring operating mechanism of a low-voltage isolating switch. Background technique [0002] When maintaining electrical equipment, it is necessary to cut off the power supply, isolate the maintenance part from the live part, and maintain an effective isolation distance. At this time, a low-voltage isolation switch is required. The currently commonly used low-voltage isolating switch mainly includes a housing, a switch contact mechanism, a contact cover, a manual operation shaft and a handle; wherein the switch contact mechanism is located inside the housing; the contact cover is arranged on the upper end of the switch contact mechanism, and The switch contact actuator on the switch contact mechanism is movably inserted into the opening on the contact cover; an operating rod is connected to the lower part of the manual operation shaft, and the outer ...

AI Technical Summary

Problems solved by technology

However, this low-voltage isolating switch has the following problems: the closing speed of the contact is related to the operating speed of the staff, so-called related manual operation, once the operating speed is too slow, the isolating switch is easy to burn

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