Abstract: A baby crib includes a bedstead, a mattress bracket and four bridging sets. The bedstead includes two longitudinal brackets and two widthwise brackets. The mattress bracket includes two longitudinal frames, two widthwise frames and four arched frames. Each bridging set includes a bridging plank and a detent member. Each bridging plank is hinged on one widthwise frame and swivelable in parallel therewith during packaging and transportation, and the detent member can be retracted toward each arched frame. Each widthwise bracket has a plurality of adjustment holes. Each bridging plank has a plurality of positioning holes and a fastener to selectively run through anyone of the positioning holes to lean on a bottom surface of each widthwise frame so that users can do adjustment manually to anchor the bedstead in the event that the hole interval of any adjustment hole of each widthwise bracket is slightly shrunk.

Abstract: A baby crib includes a bedstead, a mattress bracket and four bridging sets. The bedstead includes two longitudinal brackets and two widthwise brackets. The mattress bracket includes two longitudinal frames, two widthwise frames and four arched frames. Each bridging set includes a bridging plank and a detent member. Each bridging plank is hinged on one widthwise frame and swivelable in parallel therewith during packaging and transportation, and the detent member can be retracted toward each arched frame. Each widthwise bracket has a plurality of adjustment holes. Each bridging plank has a plurality of positioning holes and a fastener to selectively run through anyone of the positioning holes to lean on a bottom surface of each widthwise frame so that users can do adjustment manually to anchor the bedstead in the event that the hole interval of any adjustment hole of each widthwise bracket is slightly shrunk.

Abstract: A crib frame includes a main frame, a mattress support frame located at the bottom end of the main frame with two width sides each having two anchor holes, and two sets of symmetrical first and second connection racks. The first and second connection racks respectively include a first bracing plate and a second bracing plate, a first upright plate and a second upright plate extended respectively and horizontally from the first and second bracing plates, and a first support plate and a second support plate extended respectively and vertically from a lower end of the first and second upright plates. The first and second support plates have respectively a first elongate adjustment slot and a second elongate adjustment slot. The first and second elongate adjustment slots are coupled with two anchor holes, thereby the mattress support frame with varying specifications can be at desired locations to improve safety.