NOVELTY - The utility model relates to the technical field of breathing machine, in order to solve the defect that the fixing of the water collecting cup still has insufficient stability in the existing technology, the utility model claims a supporting and adjusting mechanism for water collecting cup of breathing machine, comprising a breathing machine main body, an installation groove and a distance adjusting block, the installation groove is fixedly installed at one end of the distance adjusting block, the distance adjusting block is fixedly connected with the respirator main body through the installation groove, the utility model can drive the T-shaped sliding block to slide at the top part of the fixed disc through setting the clamping component and rotating the adjusting nut, the multiple rubber pads are driven to clamp and fix the water collecting cups with different volumes from different directions, which can be suitable for water collecting cups with multiple types, the application range is wide and the stability is strong, a supporting frame is set, the distance adjusting block and the limiting component can flexibly adjust the position of the clamping component for fixing the water collecting cup, and the supporting frame and the distance adjusting block are fixed integrally through the limiting component, the operation is more flexible and the fixing of the water collecting cup is more stable.
