Safe mine lifter cage door locking device

Abstract

The invention relates to a safe mine lifter cage door locking device. A support mounting lock core is fixedly connected with a base; a shell is buckled and fixed on the base to form the body of the safe mine lifter cage door locking device; a ratchet on one end surface of a shaft gear is meshed with a ratchet on the end surface of a revolving arm; another end shaft is sleeved with a fixed inclined block and is adhered to a movable inclined block; a shifting fork is connected with a shifting block of the movable inclined block in a sliding way; a clutch spring is sleeved on one end of the fixed inclined block of the shaft gear; a long rod rack is sleeved on the clutch spring and is fixed by spring bases pins on two ends; a rotating shaft is arranged in the center of the revolving arm; the pins on two ends are connected with two swing rods and two short rods; and the short rods are connected with levers which are symmetric to each other up and down. The safe mine lifter cage door locking device has simple structure, flexible operation, reliable action and small volume, adopts a purely mechanical structure, is fixed on a cage to run together with the cage, solves the problems that the cage door can not be opened conveniently with power and needs to be protected against explosion and achieves the purpose of safe and reliable running.

Description

technical field [0001] The invention relates to a mine hoist cage door safety device, in particular to a mine hoist cage door comprising a locking device body, a deadbolt, a limit block, a ratchet clutch mechanism, a crank rocker mechanism, and a rack and pinion transmission mechanism. Door safety opening and closing device. Background technique [0002] Mine hoists include shaft hoists and inclined shaft hoists. The depth of mines is usually hundreds of meters deep. The equipment and personnel entering and exiting the well generally use lifting cages. Divided into single-layer and double-layer structures, the bottom layer transports personnel or equipment, and the upper layer is generally used to transport personnel. The door of a single-layer cage is generally a simple rolling door structure, the bottom layer of a double-layer cage is a rolling door structure, and the upper layer is a frame-type sliding door or a folding sliding door structure. [0003] In order to impro...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a safety locking device for the cage door of a mining hoist, which is used to solve the problem of installation of the existing cage door locking device at the fixed point of the coal mine wellhead yard and the bottom yard; the locking device has a complex structure and needs to be powered on to open The problem of closing; during the operation of the hoist, the cage door is in the free opening and closing, which poses a safety hazard

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