Improved coupling device for connecting concrete blocks
(10) WO 2018/158737 Al
(22) 02.03.2018
(43) 07.09.2018
(57) The invention is a coupling device (1) for connecting concrete blocks (B), comprising a male element (2) having, at the level of both of its ends (2a), a plurality of external annular ribs (4) and two caps (6) suited to be inserted and engaged in corresponding seats (S) obtained in the body of the concrete blocks (B) to be connected. Each one of the caps (6) is provided with a female housing (7) and with an inlet mouth (8) suited to allow one of the ends (2a) of the male element (2) to be introduced in the female housing (7), the...
