Automatic stop valve capable of controlling oil leakage amount

Abstract

The invention discloses an automatic stop valve capable of controlling the oil leakage amount. The end face of an oil outlet end of a traveling valve is attached to the end face of the oil inlet end of a flow dividing valve, and a plug is located in the traveling valve and close to the oil inlet end; a stopper is installed at the oil outlet end, and a screw plug is installed at the oil inlet end; a center hole of the screw plug is an oil inlet hole; a sleeve is located between the stopper and the screw plug; a shunting valve assembly is positioned in the sleeve; and one end of a reset spring is installed in a reset spring installation groove in the inner end face of the stopper, and the other end of is attached to the end face of the oil outlet end of the flow dividing valve. The valve is installed at the bottom of the oil inlet end of the flow dividing valve and is in sliding fit with the sleeve; a stop block is mounted at the port part of the oil inlet of the flow dividing valve; and a spring is sleeved on the stop block. The stop valve is installed at the front end of an airplane wheel, when an airplane wheel cylinder base is damaged and oil liquid leaks, after oil liquid with the designed value volume of the stop valve flows through, an oil way can be automatically cut off, continuous leakage of the oil liquid in a hydraulic pipeline is effectively avoided, and safe landing of an airplane is guaranteed.

Description

technical field [0001] The invention relates to the field of aircraft hydraulic brake systems, in particular to a valve used in the aircraft hydraulic brake system and capable of effectively preventing oil leakage in aircraft hydraulic pipelines. Background technique [0002] The aircraft hydraulic brake system is an important part of ensuring the safe landing of the aircraft. The braking pressure during the braking process of the aircraft is realized by the pressure of the oil. The volume of the hydraulic source of the aircraft is limited. When the cylinder block of the aircraft wheel is damaged and the oil leaks, the pressure of the oil source of the aircraft will drop, and then the braking pressure of the entire hydraulic braking system will be low or even no pressure, which will eventually lead to the failure of the aircraft. An extremely dangerous situation occurred during landing. [0003] The existing stop valve is a forced sealing valve, and the opening and closing ...

AI Technical Summary

Problems solved by technology

[0004] In order to prevent oil leakage due to damage to the cylinder seat of the wheel when the aircraft is braking on landing, it overcomes the shortage that the existing stop valve needs manual manipulation and cannot automatically cut off the oil circuit, and the volume of the medium flowing through the valve body during the closing process is uncontrollable. , the present invention proposes an automatic cut-off valve capable of controlling the amount of oil leakage

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