Patent ID: 6651263
Filing Date: 2003-11-25
Classification: E03D

Abstract:
A toilet tank having a two-stage flushing device, comprising a housing, a first water outlet tube, a second water outlet tube, a first water relief valve, a second water relief valve, and a control unit, wherein:the first water outlet tube is mounted in the housing; the second water outlet tube is mounted in the housing and has a top higher than a top of the first water outlet tube; the first water relief valve is pivotally mounted in the housing and is detachably mounted on the top of the first water outlet tube; the second water relief valve is pivotally mounted in the housing and is detachably mounted on the top of the second water outlet tube; the control unit is mounted in the housing and is connected to the first water relief valve by a first lift wire and the second water relief valve by a second lift wire; the control unit includes a connecting seat, a first handle, a first link, a second handle, and a second link, wherein: the connecting seat is mounted on an outer side of the housing; the first handle is rotatably mounted on the connecting seat and is provided with a shaft tube extended through the connecting seat, the shaft tube of the first handle has a distal end protruded outward from the connecting seat, the first handle is provided with a press shank; the first link has a first end secured on the distal end of the shaft tube of the first handle, the first lift wire has a first end secured on a second end of the first link and a second end secured on a periphery of the first water relief valve; the second handle is rotatably mounted on the first handle and is provided with a shaft tube extended through the shaft tube of the first handle, the shaft tube of the second handle has a distal end protruded outward from the shaft tube of the first handle, the second handle is provided with a press shank; the second link has a first end secured on the distal end of the shaft tube of the second handle, the second lift wire has a first end secured on the second link and a second end secured on a periphery of the second water relief valve; and the press shank of the first handle has a bottom formed with an insertion cavity, and the press shank of the second handle is formed with a protruding block inserted into the insertion cavity of the press shank of the first handle, so that when the press shank of the first handle is pressed downward, the press shank of the second handle is moved downward with the press shank of the first handle.