Balance valve and double-balance valve group

• Main Authors: CHEN ZHIXING, KONG HONGMEI
• Format: Patent
• Language: Chinese; English
• Published: 12.09.2023
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; MECHANICAL ENGINEERING; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

The utility model discloses a balance valve and a double-balance valve group, and the balance valve comprises a valve body which is provided with a main valve cavity, a control oil port, a load oil port and a working oil port; the main valve element assembly is arranged in the main valve cavity, the main valve element assembly comprises a main valve element, and the main valve element is suitable for moving in the axis direction of the main valve cavity so as to control connection and disconnection of a connecting oil way of the load oil port and the working oil port; the one-way valve assembly is movably arranged on the main valve element in a sleeving mode so as to control connection and disconnection of a connecting oil way of the working oil port and the load oil port, and the one-way valve assembly comprises a one-way valve port; one end of the pilot piston is connected with the main valve element, hydraulic oil of the control oil port is used for pushing the pilot piston to move in the axis direction of