LAUNDRY TREATMENT DEVICE COMPRISING A PUMP

The present invention relates to a laundry treatment device comprising a pump for pumping a washing liquid; the pump is provided with a suction cavity, a circulating pumping pressure cavity, a pumping-out pressure cavity and a filter element in the pumping-out pressure cavity; the suction cavity is provided with a suction pipe joint which is in fluid communication with a suction pipe; the circulating pumping pressure cavity is provided with a circulating pumping pressure pipe joint which is in fluid communication with a circulating pumping pipe; the pumping-out pressure cavity is provided witha pumping-out pressure pipe joint which is in fluid communication with a pumping-out pipe; the pumping-out pressure cavity is in fluid communication with the suction cavity; the pumping-out pressurecavity is in fluid communication with the circulating pumping pressure cavity; the filter element is provided with a first hollow channel for enabling the pumping-out pressure cavity to be in fluid communication with the pumping-out pressure pipe joint; the filter element is provided with a second hollow channel for enabling the pumping-out pressure cavity to be in fluid communication with the circulating pumping pressure cavity; the filter element defines a constriction that fluidly communicates the first hollow channel with the second hollow channel to block contaminants delivered in the first hollow channel, preventing contaminants from being delivered into the circulating pumping pressure chamber through the second hollow channel.