Marine environment air pressure resistant brake valve

Abstract

The invention relates to a marine environment air pressure resistant brake valve, and belongs to the field of airplane emergency brake. A sealing structure for isolating an inner cavity of the air pressure valve from the outside atmosphere is designed, namely, a through hole for connecting the outside atmosphere and an exhaust cavity in a shell of a common air pressure valve is sealed, a mounting seat for mounting an exhaust pipe joint is designed on the shell, and air in the exhaust cavity is exhausted out of a machine body when a brake is loosened by connecting the exhaust pipe joint of an exhaust pipeline on the machine; meanwhile, a through hole in a pressure head used for exhausting gas in the control cavity is sealed, a sealing structure is additionally arranged between the pressure head and an adjusting nut, a through hole is formed in an exhaust valve assembly, the control cavity and an exhaust cavity are connected, and the situation that due to the fact that the sealing structure is additionally arranged between the pressure head and the adjusting nut, the control cavity is suffocated, and brake control is affected is avoided. The problem that when the pneumatic brake valve is used in the marine environment, components in an inner cavity of the pneumatic brake valve are prone to corrosion due to structural defects is solved.

Description

technical field [0001] The invention relates to the field of aircraft emergency brakes, in particular to a marine environment-resistant air pressure brake valve. Background technique [0002] With my country's increasing emphasis on marine rights and interests, a number of models that need to meet the requirements of the marine environment have been established in recent years. The wheel brake systems used in these models must have high resistance to heat and humidity, mold and acidic salt spray. According to the requirements, the airborne equipment used in the terrestrial environment in the past needs to be adaptively improved. The emergency brake system can be divided into two types: hydraulic pressure and air pressure from the working medium. As an important part of the air pressure emergency brake system, the air pressure brake valve provides controllable brake pressure for the wheel brake device and is used to control the aircraft brake in an emergency state. The intern...

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Problems solved by technology

[0006] In order to overcome the disadvantages in the prior art that components in the inner chamber of the air pressure brake valve are susceptible to corrosion due to structural defects when used in a marine environment, the present invention proposes a marine environment resistant air pressure brake valve

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