Communication sealing structure of automatic car coupler gas circuit connector

Abstract

The invention discloses a communication sealing structure of an automatic car coupler gas circuit connector, the automatic car coupler gas circuit connector is composed of a gas circuit communication mechanism and an opening and closing mechanism, the opening and closing mechanism is a normally-closed and top-open type valve mechanism, a spring compresses a valve to realize normally closing, and a front sliding rod of the gas circuit communication mechanism jacks the valve to realize opening when a car coupler is combined; the gas circuit communicating mechanism comprises a convex end communicating structure with an ejector rod and a concave end communicating structure with a front sliding rod, the ejector rod is tightly combined with a radial sealing ring arranged in the concave end communicating structure on the peripheral wall of the ejector rod to achieve sealing, and the end face of the concave end communicating structure is in pressing contact with an outer end sealing ring arranged on the combined end face of the convex end communicating structure to achieve sealing. The gas circuit connector is provided with two-stage sealing, the first stage is sealing of the rod body of the ejector rod and the radial sealing ring, and the second stage is sealing of the end cover and the outer end sealing ring; the air path of the air path connector is large; and the gas circuit connector adopts a mutual embracing and intercommunicating structure, so that undifferentiated matching connection is realized, the installation is simple, and the operation is simplified.

Description

technical field [0001] The invention belongs to the technical field of railway vehicle equipment design, in particular to the technical field of railway vehicle coupling coupler design, and relates to an air circuit connector of an automatic coupler, in particular to a communication and sealing structure of the air circuit connector of an automatic coupler. Background technique [0002] At present, the automatic coupler is mainly a close-connected coupler used by bullet trains and subways, and the connection and separation of the air circuit connector interface are carried out simultaneously with the coupling and uncoupling of the coupler. [0003] Existing automatic couplers often do not have the tight connection characteristics of tight-fitting couplers, and the sealing performance cannot meet the requirements. In railway freight cars and ordinary-speed passenger cars, the requirements for the diameter of the gas path are relatively large, so the air-way connectors of tight...

AI Technical Summary

Problems solved by technology

The application uses a conventional end seal, and the sealing performance cannot meet the requirements

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