METHOD OF LOCKING THE HATCH OF A WELL INSTALLED ON ABOVEGROUND AND UNDERGROUND NETWORKS AND STRUCTURES Russian patent published in 2021 - IPC E02D29/14 

FIELD: construction.

SUBSTANCE: invention relates to construction, namely to devices for locking hatches of wells and chambers installed on aboveground and underground networks and structures, to prevent the random and unauthorized opening or dismantling of the hatch cover and the well hatch. A method for locking the hatch of a well installed on aboveground and underground networks and structures, in which the mounting of the hatch cover is carried out under the overlap plate of the well neck. At the same time, rigid fixation of the cover is provided by fixing its holding levers under the overlap plate, which eliminates random opening of the cover and their offset relatively plate. The plug that covers the key hole ensures that water and dirt are removed from the locking mechanisms. First, the plug is removed from the restraint cup, which, by means of fasteners in the upper part, is fixed, to the hatch cover, and at the bottom, by means of retaining nut, locks restraint cup and threaded guide pin among each other. After that, by rotating the key, the threaded guide pin is set in motion, which at the same time ensures the upward movement of the threaded crosspiece, driving the push levers, which in turn begin to move up the guide plate and push the holding levers, changing their position until they occupy the extreme position of fixation, depending on the shape of the well neck. In the lower part, the guide plate is fixed with a coupling crosspiece, ensuring its vertical movement by means of a threaded coupling made in the form of a sliding bearing.

EFFECT: increased reliability of locking the hatch and preventing unauthorized opening of the hatch, as well as penetration into the shaft of the well (chamber) when used on structures of any purpose and of various geometric shapes.

1 cl, 2 dwg