Electrolytic power supply and infusion pump interlock circuit and control method thereof

The invention discloses an electrolytic power supply and infusion pump interlock circuit and a control method thereof. The interlock circuit comprises the following parts: a first button; a second button, wherein one end of a normally open contact of the second button is connected with one end of a normally closed contact of the first button; a contactor, wherein both ends of the coil of the contactor are respectively connected with the normally open contact of the second button and a power negative pole, and the main contact of the contactor is connected with the infusion pump; a third button; a fourth button, wherein both ends of the normally open contact of the fourth button are respectively connected with one end of the normally closed contact of the third button and one end of the second auxiliary normally open contact of the contactor; and an intermediate relay, wherein one end of the intermediate relay is connected with the second auxiliary normally open contact, a first normally open contact of the intermediate relay is in parallel connection with the normally closed contact of the first button, and the second normally open contact controls the on-off of a silicon controlled trigger circuit of the electrolysis power supply. The second auxiliary normally open contact and the first normally open contact provide the interlock for the whole device, so as to improve the safety and reliability of equipment operation.