Pinch valve, cut-off device and cleaning equipment

Abstract

The invention relates to the technical field of cleaning equipment, in particular to a pinch valve, a cut-off device and cleaning equipment, and solves the problem that the pinch valve easily causes water leakage and blockage of a blow-off pipeline. The pinch valve comprises a supporting piece, a driving piece, a connecting rod, a swing arm, at least one sleeve and a clamping piece. Under the driving of the driving piece, the connecting rod drives the swing arm to rotate around the first axis, the swing arm drives the sleeve to be close to or away from the clamping piece so that the pipe clamping valve can be in an open state or a clamping state, and in the process that the sleeve is close to the clamping piece, the sleeve does tangential motion relative to the outer wall of the hose, so that in the process that the sleeve gradually gets close to the clamping piece, the pipe clamping valve is closed. According to the pipe clamping valve, gravel in the hose can be pushed to move, the probability that the gravel is clamped by the sleeve is reduced, and therefore the probability that the pipe clamping valve leaks water in the clamping state is reduced, and the service life of the pipe clamping valve can also be prolonged. In addition, the pipe diameter of the hose is not limited by the diameter of the ball valve any more, a user can set the diameter of the hose according to needs, and the probability of pollution discharge blockage is reduced.

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