Ring main unit door lock capable of being easily opened and closed

Abstract

The invention provides a ring main unit door lock capable of being easily opened and closed. The ring main unit door lock comprises a lock box, a ring latch, an operating handle, a through shaft, twoshort connecting rods, two long connecting rods, two long connecting rod limiting parts, two plug connectors and two springs, wherein a spring bolt is arranged in the lock box; a spring bolt through hole which is matched with the spring bolt is formed in the operating handle; a through shaft passing hole is formed in the lock box; the through shaft is arranged in the through shaft passing hole ofthe lock box and a mounting hole matched with a unit door; front and rear ends of the through shaft are separately in pin connection to the operating handle and the two short connecting rods; the rearends of the two short connecting rods are in pin connection to one long connecting rod; the two long connecting rod limiting parts are fixedly arranged on the rear end surface of the unit door; the other ends of the two long connecting rods pass through one long connecting rod limiting part, and then are in pin connection to one plug connector; and one spring is separately fixedly arranged between the two long connecting rods and the two plug connectors. During locking, the plug connectors are in plug connection to locking slots in a unit body. Compared with the prior art, the ring main unitdoor lock has the advantages of being not liable to rust and block, more convenient, time-saving and labor-saving in locking and unlocking operation.

Description

technical field [0001] The invention relates to the field of matching devices for ring network cabinets in distribution networks, in particular to an easy-to-open and close ring network cabinet door lock. Background technique [0002] At present, a large number of ring network cabinets are used in the distribution network. In order to ensure the safe operation of the ring network cabinet and avoid unnecessary safety accidents, the ring network cabinet needs to be equipped with door locks. At present, the door lock of the ring network cabinet generally adopts a rotary structure, which is mainly composed of a lock box arranged on the door of the ring network cabinet, a rotary handle set in the lock box, and a hanging rod for locking the rotary handle in the lock box. It is composed of a padlock, a heaven and earth rod type lock rod matched with the cabinet body, a connecting piece for connecting the rotating handle with the world rod, and a cover designed to be lifted upwards ...

AI Technical Summary

Problems solved by technology

The problem found in the actual use process is: because the ring network cabinet is generally located on the outdoor green belt or the roadside, it is easy to rust and jam. Due to the small size of the rotating lever, if the connecting piece and / or the heaven and earth rod are jammed or deformed when turning the rotating handle, it will be very laborious to turn the rotating handle and it will be very difficult to lock it, which will seriously affect the work efficiency , even when the operation and maintenance personnel rotate vigorously, the joint of the rotating handle or the connection between the connecting piece and the sky-earth rod is broken. Moreover, the sky-earth rod in the existing structure lacks an effective limit mechanism, and the socket hole on the sky-earth rod and the cabinet It is easy to have inaccurate alignment and cause locking difficulties, which affects the work efficiency of operation and maintenance personnel

[0003] The publication number is CN110778232A, and the Chinese patent document titled "Push-pull ring network cabinet door lock structure" provides a push-pull ring network cabinet door lock structure, which can better solve the common rotary ring network cabinet door in the industry. There are disadvantages in the lock, but its structure is relatively complicated and the cost is relatively high. When unlocking, it is necessary to overcome the elastic force of two curved steel wire tubes to drive the two lock rods to move and unlock, which is relatively laborious.

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