Mechanical self-locking device for manual operating mechanism

Abstract

The invention discloses a mechanical self-locking device for a manual operating mechanism. The device comprises a support (3) which is arranged on the mechanism and a lever (2) which is inserted into a central hole of the support (3) and rotates along the support (3), wherein the upper end of the lever (2) is provided with a flange which is connected with a high-voltage isolator body. The mechanical self-locking device is characterized in that: a cantilever (12) is arranged on the lower side of the lever (2) and is connected with an operating lever (1) through a shaft pin; a lever locking hole (9) which is connected with the operating lever (1) is formed at the lower end of the flange of the lever (2); a support lug boss for positioning the operating lever (1) is formed on the support (3); and the operating lever (1) is positioned at different positions of the support lug boss through the rotating lever (2) so as to realize the opening / closing and self-locking of the high-voltage isolator. The mechanical self-locking device can conveniently and freely perform mechanical self-locking, and has the advantages of a few components and parts, low cost, good mechanical self-locking effect, and small occupancy area during operation.

Description

technical field [0001] The invention relates to a manual operating mechanism of a high-voltage isolation switch, in particular to a mechanical self-locking device of the manual operating mechanism. Background technique [0002] The manual operating mechanism of the outdoor high-voltage isolating switch is usually composed of a lever 2, an operating lever 1 and a locking pin 4, see figure 1 shown. The operator holds the operating lever 1 and rotates the lever 2 horizontally to a specific position. The locking pin 4 locks the operating lever 1 in the set positioning hole through the spring 5 on it, and the lever locking hole 9 set on the upper end of the locking pin 4 Locked with a lock. Eight positioning holes on the flange corresponding to the upper end surface of the lever 2 are connected with the opening and closing mechanism of the high-voltage isolating switch, thereby realizing the manual operation process of the outdoor high-voltage isolating switch. [0003] The le...

AI Technical Summary

Problems solved by technology

[0003] The lever 2 of this structure and the operating lever 1, the locking pin 4 and the operating lever 2 are in a fixed connection mode, and the welding connection mode is easy to rust outdoors; parts, the manufacturing process is complicated and the cost is high

Moreover, the operating lever is a straight rod, which takes up a lot of space during operation, and the operation method is clumsy

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