  The strong coupling constants of hadronic multiplets are fundamental
parameters which carry information of the strong interactions among
participating particles. These parameters can help us construct the
hadron-hadron strong potential and gain information about the structure of the
involved hadrons. Motivated by the recent observation of the doubly charmed
$\Xi_{cc}$ state by LHCb, we determine the strong coupling constants among the
doubly heavy spin-1/2 baryons, $ \Xi^{(\prime)}_{QQ^\prime }$, $
\Omega^{(\prime)}_{QQ^\prime}$ and light pseudoscalar mesons, $ \pi $, $ K $,
$\eta$ and $ \eta^\prime $ within the framework of the light cone QCD sum
rules. The obtained results may help experimental groups in analysis of the
related data at hadron colliders.
