Operating mechanism for three-position closing band holding device

Abstract

The invention relates to an operating mechanism for a three-position closing band holding device, aiming at the technical problem that a holding device in a current like product is not good enough in the design of safety. The operating mechanism comprises an eccentric gear, a spring and a grabbing element, wherein the eccentric gear is connected with a main shaft; a roller is arranged at the outside gear surface; and the circumferential surface of the eccentric gear abuts against a spring roller at one end of the spring. The operating mechanism is characterized in that the eccentric gear is an irregular cam; the circumferential surface at one side of the axle center of the eccentric gear is provided with a spacing groove; the circumferential surface at two sides of the spacing groove and one symmetrical side of the spacing groove are arc bulges, that is, one side of the roller of the spacing groove in the eccentric gear enlarges in a spiral shape towards the other symmetrical side; and the roller is arranged at the middle part between a spiral enlargement starting point of the eccentric gear and the symmetrical side of the spacing groove; the L-shaped grabbing element bends downward, and the outside of the bending end is provided with a spacing end groove, and the other end is fixed at a side plate through a pin roll; the eccentric gear keeps abutting against the roller at one end of the spring; and when the eccentric gear arrives at one position, the energy of the spring is released gradually.

Description

technical field [0001] The invention relates to a three-station mechanism of a high-voltage switch, which is an operating mechanism of a three-station closing belt holding device. Background technique [0002] The three-position mechanism of the high-voltage switch has been developed to this day, and there have been some unsatisfactory designs. For example, the traditional three-position mechanism with a fuse. The energy source of the mechanism opening has always been a shortcoming of the mechanism design. The energy of the three-station mechanism basically has the characteristics of instant storage and use, and there is no concept of energy storage for use. Therefore, the power supply department needs a mechanism that can have the function of breaking the circuit when it needs to be broken, instead of going to manual or mechanical energy storage and then opening the switch when it wants to break the circuit, which is dangerous and not allowed in time. Among them, the cams ...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the above-mentioned shortcomings, the purpose of the present invention is to provide an operating mechanism for a three-position closing belt holding device in the field, so as to solve the problem of operating the three-position closing belt holding device in the existing similar high-voltage switch products. Technical Issues of Poor Agency Security Design

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