Quick connector of crankcase ventilation system

Abstract

The invention provides a quick connector of a crankcase ventilation system. The quick connector comprises an external connecting pipe, an electric switch and a mandrel; the external connecting pipe isformed in a pipe shape; a pipeline passage is formed in the external connecting pipe; one end of the external connecting pipe is connected to an air inlet manifold, and the other end of the externalconnecting pipe is connected to an air filter rubber pipe; a through hole communicating with the pipeline passage is formed in the side wall of the external connecting pipe; the electric switch is arranged outside the external connecting pipe and is adjacent to the through hole; the mandrel capable of moving between a first position and a second position in the axial direction of the through holeis arranged on the external connecting pipe; when the mandrel is located at the first position, at least a part of the mandrel extends into the pipeline passage, the mandrel and the electrical switchare disconnected, and when the mandrel is located at the second position, the mandrel and the electric switch are matched to form a closed electric circuit. The quick connector of the crankcase ventilation system has the advantages that when the air inlet manifold and the air filter rubber pipe are in insertion connection, the mandrel can touch the electric switch and form the closed electric circuit, and therefore normal operation of an engine can be ensured.

Description

technical field [0001] The invention relates to the technical field of crankcases, and more specifically, to a quick-plug joint of a crankcase ventilation system. Background technique [0002] New engines have higher and higher requirements on the crankcase ventilation system. The curved PCV pipeline in the crankcase ventilation system cannot be disconnected after assembly. If it is disconnected, the engine needs to be turned off or the ECU will alarm. [0003] Moreover, the conventional assembling method of the existing curved pipe is a clamp rubber hose connection, without leak-proof or disconnection measures, which cannot meet the requirements of the new engine for the crankcase ventilation system. Contents of the invention [0004] In view of this, the present invention provides a quick-plug joint of a crankcase ventilation system. [0005] In order to solve the problems of the technologies described above, the present invention adopts the following technical solution...

AI Technical Summary

Problems solved by technology

[0003] Moreover, the commonly used assembly method of the existing bent pipes is a clamp rubber hose connection, without leak-proof or disconnection measures, which cannot meet the requirements of the new engine for the crankcase ventilation system

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