Connecting rod drive mechanism for water discharge valve and water discharge valve having said mechanism

A connecting rod drive mechanism for a water discharge valve, comprising a base, a first stage connecting rod, and a last stage connecting rod, wherein the first stage connecting rod and the last stage connecting rod are movably arranged on the base, a drive part, a turning part, and a transmission part are provided on the last stage connecting rod, the drive part cooperates in transmission with an initiation assembly of the water discharge valve, the transmission part cooperates in transmission with the first stage connecting rod, the turning part forms a relative turning connection with the base, the transmission part is located between the drive part and the turning part, and the first stage connecting rod is driven so as to impel the last stage connecting rod, causing a drive part of the last stage connecting rod to drive the initiation assembly of the water discharge valve to be opened and discharge water, wherein the mechanism further comprises an intermediate stage connecting rod, a first end of the intermediate stage connecting rod forms a turning connection with the base, the turning part forms a turning connection with a second end of the intermediate stage connecting rod, the first stage connecting rod is slidably arranged on the base, and the transmission part is located between the drive part and the turning part and forms a turning connection with the first stage connecting rod;

• and the base, the first stage connecting rod, the intermediate stage connecting rod and the last stage connecting rod form a four-bar mechanism.