Gas-liquid connection-disconnection device with anti-insertion mistake function, applied to space experiment cabinet, and use method for same

Abstract

The invention relates to a gas-liquid connection-disconnection device with an anti-insertion mistake function, applied to a space experiment cabinet, and a use method for the same. When a male joint is in fitted docking with a female joint, a direct-connection middle sleeve and a male valve sleeve can be screwed in by trapezoidal threads through cooperation, a guide shaft is pressed against a malevalve, the male valve and a male valve pressure spring are compressed, the male valve sleeve is pressed against a slide sleeve, and the slide sleeve and a pressure spring of the slide sleeve are compressed, so a fluid channel of the male joint and a fluid channel of the female joint can be communicated and dual-way breaking-over is realized; and after docking, the male valve and the slide sleevewhich are disconnected can be reset by the male valve pressure spring and the slide sleeve pressure spring respectively and can be connected to the male valve sleeve and the slide sleeve in a sealed manner respectively, and the fluid channel of the male joint and the fluid channel of the female joint are closed. The connection-disconnection device provided by the invention has the beneficial effects that gas entrance is avoided during connection, leakage is prevented during disconnection, so connection and disconnection operations are convenient; and during whole processes of connection and disconnection, a sealed and isolated state is maintained inside and outside the fluid channels, so a low air intake amount is effectively guaranteed.

Description

technical field [0001] The invention belongs to the field of gas and liquid transportation, in particular to a gas-liquid disconnector for a space experiment cabinet with the function of preventing wrong insertion and a method for using the same. Background technique [0002] Various devices are known for the delivery of fluids, including gases or liquids. A connector composed of a female joint and a male joint assembly is a commonly used connection structure for fluid delivery devices. The connection between the female joint and the male joint is divided into a straight type and a closed type. The straight-through type means that no matter whether the female joint and the male joint are connected or disconnected, the pressure fluid can flow through the channels in the female joint and the male joint. The closed type means that the female and male connectors must be connected to allow pressure fluid to flow through the channels in the female and male connectors, and in the...

AI Technical Summary

Problems solved by technology

[0003] The currently known space connectors are closed quick connectors, but the known connectors have many disadvantages, such as not conducive to one-handed operation, gas entering the pipeline when connecting, fluid leakage when disconnecting, etc.

Under the special working conditions of the space station, the workpiece needs to be easy to operate, stable in performance, and reliable in operation. The existing closed quick connectors cannot meet the above requirements.

Images