Interlocking control system of lubricating oil pump for water supply pump

The utility model provides an interlocking control system of a lubricating oil pump for a water supply pump. The system comprises the water supply pump (2), and two lubricating pumps (7); an oil tank (8) is connected to the input end of each lubricating pump (7), and while the output end of each lubricating oil pump (7) is synchronously connected with lubricating oil input end of the water supply pump (2); a first pressure instrument and a second pressure instrument are mounted on a lubricating oil pipeline of each lubricating oil pump (7), connecting with the water supply pump (2). The system is characterized in that a third pressure instrument and a fourth pressure instrument are synchronously mounted on the lubricating oil pipelines; output signals at the output ends of the first pressure instrument, the second pressure instrument, the third pressure instrument and the fourth pressure instruments are all connected to a control circuit. According to the interlocking control system of the lubricating oil pump for the water supply pump, a plurality of pressure switches are provided for controlling the working states of the lubricating oil pumps, and therefore, the accuracy of interlocking control is improved, and a device is avoided mis-action and damage.