Current 22+ Sliding Closet Door Locks Child Proof. Sliding door locks for baby proofing | keyless child safety locks for patio, closet, shower sliding doors, shutters. Because young children are not aware of dangers, it's useful to store the kitchen knives, the cleaning chemical or the medicine out of their reach. ยทยทยท about product and suppliers: 34 sliding closet door locks child proof products are offered for sale by suppliers on alibaba.