Oil Return Mechanism

摘要

An oil return mechanism includes a base, a control switch, a first blocking ball mounted in the base, an elastic member mounted between the first blocking ball and the base. The base has a liquid storing cavity, a liquid returning cavity, a communicating cavity, a first communicating opening communicating between the liquid returning cavity and the communicating cavity, and a second commit eating opening communicating between the communicating cavity and the liquid storing cavity. The present invention can regulate a speed of a fluid flowing from the liquid returning cavity to the communicating cavity, and has the advantages of simple structure and great reduction of cost.

主权项

1. An oil return mechanism, comprising:
a base, a control switch, a first blocking ball mounted in the base, an elastic member mounted between the first blocking ball and the base; wherein the base has a liquid storing cavity, a liquid returning cavity, a communicating cavity, a first communicating opening communicating between the liquid returning cavity and the communicating cavity, and a second communicating opening communicating between the communicating cavity and the liquid storing cavity; wherein the control switch is adapted for placing the second communicating opening into open or closed position so that the communicating cavity and the liquid storing cavity are connected or separated; wherein the first blocking ball loves between a blocking position and an open position with an external force; wherein when the first blocking ball is in the open position, the whole first communicating opening opens, and thus a fluid flows from the liquid returning cavity to the communicating cavity; wherein the first communicating opening is positioned in a communicating portion of the base; wherein when the first blocking ball is in the blocking position at least one liquid guiding gaps are formed between the first blocking ball and the communicating portion of the base; and wherein the liquid guiding gap communicates between the liquid returning cavity and the communicating cavity.