Locating locking fixture for preventing upper and lower static contact baffles in switch cabinet from being opened

Abstract

The invention discloses a locating locking fixture for preventing upper and lower static contact baffles in a switch cabinet from being opened, which is characterized in that the fixture is provided with a rotary stopping handle comprising an insulated handle (1) and a handle screw (2). The handle screw (2) is movably connected with a locating rod (8) which is provided with a locating tube (3). Two opposite cutting sleeve adjusting screws (5) are inserted in the locating tube (3), wherein one cutting sleeve adjusting screw (5) is sleeved with a spring (7) and the other cutting sleeve adjusting screw (5) is provided with a stopping pin (6). Each cutting sleeve adjusting screw (5) is connected with an adjusted cutting sleeve (4). An adjusting screw (10) is movably connected at the front end of the locating rod (8). The fixture is simple in structure, safe and reliable, is suitable for different kinds of 10kV and 35kV intermediate type switch cabinets, can realize preventing upper and lower static contact baffles in the switch cabinet from being opened, prevent the dangerous points in the work and ensure the safety of the workers.

Description

Technical field: [0001] The invention relates to a locking fixture, in particular to a positioning locking fixture for preventing opening of upper and lower static contact baffles in a switch cabinet. Background technique: [0002] In recent years, 10kV and 35KV mid-mounted switchgears have been widely used in power grid operation due to their advantages such as small structure, fast speed, and large breaking current. However, they often cannot be repaired and eliminated in the switchgear Guaranteed reliable safety measures, bringing safety hazards to maintenance personnel. In the past, in the maintenance and elimination work of the middle-mounted switch cabinet, the safety measures taken were first to install red curtains on the upper and lower static contact baffles; The first is to place a "work here" sign on the work site; the third is to have a special person supervise. These three safety measures cannot completely prevent the opening of the upper and lower static cont...

AI Technical Summary

Problems solved by technology

[0002] In recent years, 10kV and 35KV mid-mounted switchgears have been widely used in power grid operation due to their advantages such as small structure, fast speed, and large breaking current. However, they often cannot be repaired and eliminated in the switchgear Guaranteed reliable safety measures, bringing safety hazards to maintenance personnel. In the past, in the maintenance and elimination work of the middle-mounted switch cabinet, the safety measures taken were first to install red curtains on the upper and lower static contact baffles; The first is to place a "work here" signboard on the work site; the third is special supervision

These three safety measures cannot completely prevent the opening of the upper and lower static contact baffles in actual work. When the circuit breaker is pulled out, due to the defect of the push-pull mechanism, the static contact baffles are easily opened by mistake, resulting in the exposure of the high-voltage contacts. , so that maintenance personnel have the possibility of electric shock, causing major personal injury accidents

There have been major accidents in which the staff mistakenly opened the upper and lower static contact baffles during the maintenance work in the central switch cabinet, resulting in personal death

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