Center absorbing negative pressure regulating device

The utility model relates to a center absorbing negative pressure regulating device, comprising a magnetic valve 1, a magnetic valve power supply lead-in foot switch 2, a power supply plug 21, a controlled absorbing joint 3, a suction adjustor 4, a negative pressure meter 5, an uncontrolled absorbing joint 6, and a casing 7. The controlled absorbing joint 3, a suction adjustor 4, a negative pressure meter 5 are all connected with a negative pressure absorbing source fast connecting socket of a center absorbing device by a fast connecting plug 11 on the magnetic valve 1; the uncontrolled absorbing joint 6 is directly connected with the negative pressure absorbing source fast connecting socket of a center absorbing device by the fast connecting plug 11; the magnetic valve power supply lead-in foot switch 2 and the power supply plug 21 are connected with the magnetic valve 1 by a power supply circuit. The utility model can directly use the center absorbing device without additionally purchasing an electric absorber in medical treating and checking and therapy operations of a gastroscope, a proctoscopy, and a bronchoscope which need to use controlled absorbing; the utility model saves medical equipment expenses, and has simple structure, low cost, and convenient operation; the center absorbing negativepressure regulating device is safe and reliable.