Water electrolysis device

The utility model belongs to a teaching instrument, and particularly relates to a water electrolysis device, which comprises a base and a support, wherein the bottom part of the support is fixedly arranged on the base; the upper part of the support is provided with a clamping clip; the round iron circle of the clamping clip fixes a spherical liquid storage funnel; the bottom part of the spherical liquid storage funnel is connected with a latex tube; the other end of the latex tube sleeves a three-way connection tube; the remaining two ends of the three-way connection tube are respectively connected with glass tubes; the bottom end of each glass tube is provided with a rubber plug; each glass tube is internally provided with an electrode; the top end of each glass tube is sleeved with an air collection tube; the top part of the air collection tube is provided with an air discharge mouth with a switch; the two air collection tubes are fixed via a connection frame; the middle part of the support is provided with a movable connection frame; the movable connection frame and the support are connected via a five-star bolt; and the left end of the movable connection frame fixes the air collection tube at the right. The water electrolysis device is simple, convenient, safe and harmless.