Hi, I work in a carehome, recently a resident pushed his way through an electric gates, the manager has now put a padlock on these gates (small ( for walkers) and large gate ( for drivers) so he cant push through. My problem is this is a exit route in case of a fire,  is this ok? 

If it is a fire exit door, then no. As for a gate, that all depends on whether you can still get to a place of safety which may or may not be off the premises.