Special tool for opening cable working well lid

Abstract

The invention discloses a special tool for opening a cable working well lid, and relates to the technical field of power cable operation inspection. The special tool for opening the cable working welllid is composed of an operation part and a supporting part, the operation part is mainly composed of a long handle, a short handle and an auxiliary spring set, the supporting part is mainly composedof three transverse supporting arms and three lateral supporting arms and is in a triangular cone shape, and the operation part and the supporting part are connected through two concentric rods. In anatural state, the transverse supporting arms and the lateral supporting arms in the supporting part are in a folded state so as to penetrate through a hole of the cable working well lid, the transverse supporting arms and the lateral supporting arms are in an unfolded state and are tightly attached to the inner side of the cable working well lid by operating the long handle and the short handle,and therefore the well lid is lifted. The special tool for opening the cable working well lid has the beneficial effects that by using the special tool for opening the cable working well lid, the cable working well lid can be conveniently and efficiently opened without being damaged, and the operation safety risk of personnel is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of power cable inspection, in particular to a special tool for opening a manhole cover for cable work. Background technique [0002] Due to the acceleration of the cable entry project, the number of cable pipe work wells and cable tunnel work wells is increasing. Since most of the current work manhole covers are ordinary ductile iron manhole covers or epoxy resin manhole covers, they are heavy and there is no special one. It is a very strenuous work to open the manhole cover device and open the work manhole cover. In daily operation and maintenance inspections, a crowbar is usually used to open. The first disadvantage is that the design of the manhole cover is usually in close contact with the base. It is difficult for the crowbar to find a fulcrum to lift the manhole cover, which often causes damage to the manhole cover. In the process of tilting, the crowbar is prone to side-slip, and there is a great ris...

AI Technical Summary

Problems solved by technology

[0002] Due to the acceleration of the cable entry project, the number of cable pipe work wells and cable tunnel work wells is increasing. Since most of the current work manhole covers are ordinary ductile iron manhole covers or epoxy resin manhole covers, they are heavy and there is no special one. It is a very laborious work to open the manhole cover device and open the working manhole cover

In daily operation and maintenance inspections, a crowbar is usually used to open. The first disadvantage is that the design of the manhole cover is usually in close contact with the base. It is difficult for the crowbar to find a fulcrum to lift the manhole cover, which often causes damage to the manhole cover. During the tilting process, the crowbar is prone to slipping, which poses a great risk to personnel safety

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