A gw-35 type knife switch operating mechanism against mis-locking

Abstract

The invention discloses a GW-35 type disconnecting link operation mechanism for preventing the false lock and belongs to the technical field of transformer substations. An operation handle locking hole is formed in a knife valve operation handle in the vertical direction, one end of a bent buckle plate is fixed on the knife valve operation handle in the horizontal direction, the other end of the bent buckle plate is suspended, a T-type lock pin comprises a vertically arranged lock pin upper cover and a pin shaft, a lock pin hole is formed in the radial direction of the pin shaft, the pin shaft of the T-type lock pin penetrates through the operation handle locking hole, the lower end face of the lock pin upper cover is attached to the knife valve operation handle, the suspended end of the bent buckle plate is located on the left side of the pin shaft so as to prevent the knife valve operation handle from being locked by mistake, and a lock hook of a padlock penetrates through the lock pin hole and then is locked on the T-type lock pin. As the lock pin hole is formed in the radial direction of the pin shaft of the T-type lock pin, the suspended end of the bent buckle plate is blocked on the left side of the pin shaft through the pin shaft, and the lock hook of the padlock penetrates through the lock pin hole and then is locked on the T-type lock pin, the function of preventing the knife valve operation handle from being locked by mistake is achieved.

Description

technical field [0001] The invention belongs to the technical field of substations, and in particular relates to a GW-35 type knife switch operating mechanism for preventing mislocking. Background technique [0002] Existing 110kV substation GW-35 knife switch, the opening and closing angle of the knife switch operating handle is 90°, and the locking device of the operating mechanism is locked by a curved buckle plate, which is used with a microcomputer anti-mislocking padlock. The microcomputer anti-misoperation manufacturer adopts the user The inner spring lock pin is directly hung on the buckle plate with an anti-mistake lock. In practice, there are the following problems: [0003] 1. The inner spring lock pin of outdoor mining users is easy to rust, and must be re-welded in about a year; [0004] 2. Or adopt the vertical tie rod of the knife gate and weld the fixed plate on the structure, which will inevitably damage the mechanical strength of the vertical tie rod of th...

AI Technical Summary

Problems solved by technology

[0003] 1. The inner spring lock pin of outdoor mining users is easy to rust, and must be re-welded in about a year;

[0004] 2. Or adopt the vertical tie rod of the knife gate and weld the fixed plate on the structure, which will inevitably damage the mechanical strength of the vertical tie rod of the knife gate;

[0006] 4. If the lock pin is too short and the upper and lower gaps are too large, the lock pin moves upwards, causing the anti-mislocking to fail to lock.

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