Safety stop valve, safety control loop and safety control hydraulic system

The invention discloses a safety shut-off valve, a safety control loop and a safety control hydraulic system.The safety shut-off valve comprises a variable damper, a first valve, a second valve, a pressure oil port, a working oil port and an oil return port, the variable damper comprises an oil inle...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	PAN HONGDA, XIU XIAOTING, LI LINZHI, LI KAIKAI, DUAN PEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL,e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL PERFORMING OPERATIONS SEPARATING SOLIDS FROM SOLIDS SEPERATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, ORSIFTING OR BY USING GAS CURRENTS SORTING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	The invention discloses a safety shut-off valve, a safety control loop and a safety control hydraulic system.The safety shut-off valve comprises a variable damper, a first valve, a second valve, a pressure oil port, a working oil port and an oil return port, the variable damper comprises an oil inlet and an oil outlet, the oil inlet is connected to the pressure oil port, the second valve is connected between the oil outlet and the working oil port, and the first valve is connected to the first valve; the second valve is used for communicating the oil outlet with the working oil port or communicating the working oil port with the oil return port, the first valve is used for communicating the control end of the second valve with the pressure oil port or communicating the control end of the second valve with the oil return port, and the two control ends of the first valve are connected to the oil inlet and the oil outlet respectively. According to the safety cut-off valve, the safety control loop and the safety