Probe clamp box

I care for children with antenatal feeding at night. Children often play with the clamp, or move at night and the clamp closes. As a result, the pump sounds and goes into alert. The food no longer passes.I created a small box to put the clamp. The box is difficult for a child to open and the fact of no longer seeing it prevents them from touching it. the diameter of the pipe passing through the box is 4mm.THANKS.Please look at my profile, I also created a probe holder to hang on the pump foot.