PH value detection device for wash supplies

The utility model discloses a wash supply PH value detection device which comprises a detection frame, the detection frame comprises a base and a fixing rod, a horizontal containing frame is arranged on the fixing rod, the containing frame is used for placing a sampling structure, a fixing plate is further arranged on the fixing rod, a notch is formed in the fixing plate, a PH value detector is arranged on the side of the detection frame, and the PH value detector is used for detecting PH value of wash supplies. A detection head of the pH detector penetrates through the notch, a cleaning box is further arranged on the containing frame, cleaning liquid is arranged in the cleaning box, the detection head vertically slides relative to the fixing plate, and the lower end of the detection head is immersed in the cleaning liquid after the detection head slides. The cleaning box is arranged on the containing frame, the detection head can be conveniently cleaned after the PH value of the wash supplies is detected eve