The application discloses a
pressure sensing device and a washing
machine, and relates to the technical field of
water pressure sensing, wherein the
pressure sensing device comprises a base and a sensing
assembly; the sensing
assembly comprises a sensor, a shell and an elastic element; the sensor is arranged on the base; a cavity is formed in the shell; the elastic element is sealed and covers one side of the cavity; the side of the cavity, which is far away from the elastic element, is in fluid communication with the sensor; and the side of the elastic element, which is far away from the cavity, is used for being connected with a measured
water flow; when the elastic element is used for measuring the
water pressure of the measured
water flow, the measured
water flow drives the elastic element to elastically deform towards the direction close to the cavity, so as to compress the gas in the cavity, and the sensor senses the change of the
gas pressure in the cavity; the application extrudes the elastic element by the change of the
water pressure of the measured water flow, so as to change the
gas pressure in the cavity, and then the water pressure of the measured water flow is indirectly obtained by the sensor sensing the
gas pressure, so that the sensor is avoided from directly contacting the measured water flow, and the maintenance cost is reduced.