Medium-pressure switch cabinet door closing lock

A switchgear, medium voltage technology, used in building locks, door/window accessories, handle connections, etc., can solve the problems of fragile door lock structure, door lock disintegration, flying out, etc., to reduce the failure rate and lock tongue stuck. The effect of the incidence of the situation

Inactive Publication Date: 2013-01-09
BOER WUXI POWER SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Danger to persons and equipment outside the cabinet
Sometimes the door panel is not flushed open, but due to the fragile structure of the door lock, the door lock falls apart under the impact, or even flies out, causing danger to personnel and equipment

Method used

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  • Medium-pressure switch cabinet door closing lock
  • Medium-pressure switch cabinet door closing lock
  • Medium-pressure switch cabinet door closing lock

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The present invention will be further described below in conjunction with specific examples.

[0015] As shown in the figure, the door lock of the medium voltage switchgear includes a door lock 1 and a door panel 10, the door lock 1 is fixed on the door panel 10, a sector piece 2 is fixed on the door lock 1, and a curved Connecting rod 3; a deadbolt 7 is fixed on the door panel 10, a slot buckle 701 and a slot hole 702 are provided on the dead bolt 7, the slot buckle 701 is connected with the slot hole 702, and the other end of the curved connecting rod 3 is fixed on the dead bolt 7 Above: a deadbolt support 11 is fixed on the door panel 10 , the deadbolt support 11 has a cylindrical head, and a roller 12 is sleeved on the cylindrical head of the deadbolt support 11 , and the roller 12 is embedded in the slot hole 702 of the deadbolt 7 .

[0016] The thickness of the deadbolt 7 is smaller than the height of the cylindrical head on the deadbolt support 11 .

[0017] The...

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PUM

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Abstract

The invention relates to a medium-pressure switch cabinet door closing lock which comprises a door lock and a door plate. The door lock is fixed on the door plate, a fanning strip is fixed on the door lock, and a crank connecting rod is fixed on the fanning strip. A spring bolt is fixed on the door plate, a groove buckle and a groove hole are arranged on the spring bolt, the groove buckle is connected with the groove hole, and the other end of the crank connecting rod is fixed on the spring bolt. A spring bolt support is fixed on the door plate and provided with a cylinder head, a roller is sleeved on the cylinder head of the spring bolt support, and the roller is embedded in the groove hole of the spring bolt. The medium-pressure switch cabinet door closing lock has the main advantages that the door lock and the spring bolt are relatively separated, the door lock is not related when the spring bolt bears impact force of the door plate in a vertical direction of a plane of the door plate; the door lock adopts a single-column rotation door lock, an original complicated door lock inner mechanism is simplified, using reliability of the door lock is guaranteed; single spring bolt multipoint lock closing is adopted, and failure rate and occurrence rate of spring bolt clamping situations are reduced.

Description

technical field [0001] The invention belongs to the field of medium-voltage switchgear cabinets, and relates to a lock for the door of a medium-voltage switchgear. Background technique [0002] In general medium-voltage switchgear cabinets, the door panel is usually locked by the way that the deadbolt (or lock catch) is directly connected with the door lock. Such a mechanism does not have a strong latching strength. The door panel is easy to be forced open when subjected to strong force. Door locks are also vulnerable to damage. Especially in the medium and high voltage switchgear, when the arc is generated, the cabinet is under relatively large pressure, and the door panel is easy to be directly opened. Danger to personnel and equipment outside the cabinet. Sometimes although the door panel is not flushed open, due to the fragile structure of the door lock, the door lock is impacted and falls apart, or even flies out, causing danger to personnel and equipment. Content...

Claims

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Application Information

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IPC IPC(8): E05B65/52E05B3/00E05B15/00
Inventor 王国军
Owner BOER WUXI POWER SYST
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