A railway train anti-skid exhaust valve with one-way valve

Abstract

The invention discloses a railway train anti-skid exhaust valve with a one-way valve. The railway train anti-skid exhaust valve comprises a shell, an electromagnetic control assembly and an adjusting assembly. The electromagnetic control assembly communicates with the adjusting assembly through a connecting pipe. The electromagnetic control assembly comprises a package coil and an iron core assembly installed in the package coil. The adjusting assembly comprises a valve body, an inlet screen, a membrane and a reset spring. The shell is provided with an air inlet, the inlet screen is arranged at the position of the air inlet, and the reset spring is located between the membrane and the shell. The valve body is provided with an output port. The one-way valve is arranged between the output port and the air inlet. An inlet of the one-way valve corresponds to the output port, an outlet of the one-way valve corresponds to the air inlet, and the output port communicates with the connecting pipe. According to the railway train anti-skid exhaust valve with the one-way valve, the one-way valve is arranged between the output port and the air inlet, when the anti-skid exhaust valve is in a released state, residual compressed air in a brake cylinder connected with the output port can enter the air inlet from the one-way valve and then is completely emptied, and the releasing performance of the anti-skid exhaust valve is improved.

Description

technical field [0001] The invention belongs to an anti-skid air exhaust valve, and more specifically relates to an anti-skid air exhaust valve with a check valve for railway trains. Background technique [0002] In the existing anti-skid exhaust valve for railway passenger trains, when the train brakes, the compressed air directly passes through the air inlet of the anti-skid exhaust valve and then enters the brake cylinder from the output port to brake the train. The air is exhausted along the air inlet of the anti-skid valve in the opposite direction, but the compressed air must push the intake diaphragm to reach the air inlet of the anti-skid exhaust valve. Since the air intake diaphragm is provided with a return spring, the return spring will A certain back pressure is generated, so the compressed air in the brake cylinder cannot be completely emptied, and the residual compressed air will have an adverse effect on the relief, and in severe cases, it may even damage the ...

AI Technical Summary

Problems solved by technology

[0002] In the existing anti-skid exhaust valve for railway passenger trains, when the train brakes, the compressed air directly passes through the air inlet of the anti-skid exhaust valve and then enters the brake cylinder from the output port to brake the train. The air is exhausted along the air inlet of the anti-skid valve in the opposite direction, but the compressed air must push the intake diaphragm to reach the air inlet of the anti-skid exhaust valve. Since the air intake diaphragm is provided with a return spring, the return spring will A certain back pressure is generated, so the compressed air in the brake cylinder cannot be completely emptied, and the residual compressed air will have an adverse effect on the relief, and in severe cases, it may even damage the wheel and cause an accident

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