COUPLING FOR CONNECTION OF RELEASES OF REINFORCEMENT OF BUILT-UP COLUMNS Russian patent published in 2020 - IPC E04C5/16 

FIELD: manufacturing technology.

SUBSTANCE: coupling for connection of reinforcement rods consists of two parts. Lower part of the coupling is directed towards the outlets of the lower string. Upper part of the coupling is directed towards the outlets of the upper column. In the lower part of the coupling there is a thread, by means of which the coupling is screwed on the bottom outlet of the column, which has a thread at the end. Upper part of the coupling is made in the form of a cylinder, the diameter of which is equal to the sum of the diameter of the outlet of the upper column and the standardized double tolerance value for the outlet deviation from the design position in the horizontal plane. Between the upper and lower parts of the coupling there is a support zone in the form of a partition which serves to thrust the outlets of the upper string into the coupling. To fix the reinforcement outlet of the upper string in the coupling, in the upper part of the coupling, along its perimeter, there are holes with thread, into which bolts are screwed up against the stop in the output of the above located column. Fixation of outlets with bolts is intended to ensure stability of the mounted string in the design position at the moment of installation. Threaded holes can be arranged in several levels. Coupling at the bottom string outlet is fixed with a lock nut.

EFFECT: invention is aimed at reduction of labor intensity due to simplification of installation works with preservation of butt joint strength.

1 cl, 3 dwg