1results about How to "Improve plug life" patented technology

The utility model relates to the field of elevator shaft construction, and specifically relates to a kind of elevator shaft folding telescopic inspection operation platform, including a group of stand and a group of respectively with its through bolt connection support, support top is placed with step, support top is provided with a group of limit piece;Limit piece includes the fixed rod that can vertically slide and can reset, fixed rod top is connected with the clamping block of bearing, when placing step butt joint limit piece, the connector of step bottom both ends is in abutment with clamping block and moves so that clamping block generates rotation, reduce the friction between two, when clamping block and the clamping groove cooperation on connector are completed and are clamped, realize the constraint to step position;The cooperation of limit piece and connector makes clamping block and clamping groove snap, to make step be locked after being placed, reduce installation time consumption, avoid step displacement to cause security risk, when the slope of clamping block and clamping groove is in abutment, under the action of bearing, clamping block can rotate, reduce the friction coefficient of clamping block and clamping groove side wall.