Design and Analysis of Pneumatic Operated Bed for Hospitals

Abstract

The hospital beds are one of the most important units in any hospital around the world. These beds help doctors and nurses in positioning the patients as required during the treatment of patients. To engineer the treatment bed in hospitals, the present work aims to develop a mechanism for tilting the beds by using pneumatic system to achieve five different positions. These positions are achieved by actuating the corresponding double acting cylinders attached to the bed to attain different inclinations for front, back, right, left and total bed movements. FESTO fluidsim3.6 Computer Software is used to design and simulate the pneumatic circuit of the system. The pneumatic system has been designed by using a set of pneumatic components such as compressor, 3/2-way valves with push buttons and 5/2-way valves. PTC CREO has been used to model the mechanical parts of the hospital bed. Analysis and simulation of the hospital bed model has been carried out. The results of the analysis have proved that the pneumatic system is safe to use in the hospital bed which can withstand a maximum load of 300 kg.