Abstract: After a cleaning device is powered-on and initialized, a water path self-detection method for the cleaning device comprises the following steps: 1) judging whether a low water level switch is turned on; if so, controlling a water inlet valve to be turned on, controlling a water pump to be turned off, and going to step 2; if not, controlling the water pump to be turned on, controlling the water inlet valve to be turned off, and going to step 3; 2) judging whether a water replenishment time exceeds a preset first threshold; if so, a fault is confirmed, and the water inlet valve is controlled to be turned off; and if not, returning to step 1; 3) judging whether the low water level switch is turned on; and 4) judging whether a water pumping time exceeds a preset second threshold.

Abstract: A method and device for displaying a control belongs to the field of audio adjustment. At least one adjustment control is displayed on an equalizer displaying interface, with the adjustment control including a slide channel and a slider, and with the adjustment control being used for adjusting an audio signal amplifying value at a frequency band according to a position of the slider on the slide channel. The position of the slider on the slide channel is obtained when a sliding signal of the slider is received. A displaying manner of the adjustment control is adjusted according to the position of the slider.

Abstract: A method and device for displaying a control belongs to the field of audio adjustment. At least one adjustment control is displayed on an equalizer displaying interface, with the adjustment control including a slide channel and a slider, and with the adjustment control being used for adjusting an audio signal amplifying value at a frequency band according to a position of the slider on the slide channel. The position of the slider on the slide channel is obtained when a sliding signal of the slider is received. A displaying manner of the adjustment control is adjusted according to the position of the slider.

Abstract: Electric valve and a refrigerating system. An inlet, a pressure relief port and a plurality of outlets are set on a valve seat of the electric valve; a valve cap is covered above the valve seat; an electric motor is fixedly set on the valve cap, a stator of the electric motor is set on the outer surface of the valve cap, and a rotor is set in the intracavity of the valve cap; the lower end of a mandrel is fixedly provided with a valve core that is opened with a pressure-relief diversion slot and a through slot, wherein the pressure-relief diversion slot is opened on the lower surface of the valve core, the through slot penetrates through the valve core along the thickness direction of the valve core. Refrigerant bifurcation, cutoff, pressure relief, etc., in refrigerating system is realized by rotating the valve core to different positions.

Abstract: The present invention discloses an electric valve and a refrigerating system comprising the same, wherein an inlet (411), a pressure relief port (412) and a plurality of outlets (413) are set on a valve seat (41) of the electric valve; a valve cap (43) is covered above the valve seat (41); an electric motor (42) is fixedly set on the valve cap (43), a stator (421) of the electric motor (42) is set on the outer surface of the valve cap (43), and a rotor (422) is set in the intracavity of the valve cap (43); the lower end of a mandrel (4221) is fixedly provided with a valve core (44) that is opened with a pressure-relief diversion slot (441) and a through slot (442), wherein the pressure-relief diversion slot (441) is opened on the lower surface of the valve core (44), and the through slot (442) penetrates through the valve core (44) along the thickness direction of the valve core (44).