Patent ID: 9593805
Date: 2017-03-14
CPC Classifications: F16N

Claim:
1. A liquid distribution valve, comprising at least one housing, an oil supply passage, and at least one oil storage valve and at least one two-position three-way valve both using a respective inner cavity of the housing as a carrier, and each oil storage valve corresponding to one two-position three-way valve; a valve chamber of the oil storage valve being separated into an oil storage chamber and an oil pressing chamber by a piston, and the oil storage chamber being in communication with an oil discharge port and having a spring pressing against the piston; wherein the oil supply passage is arranged inside the housing; the two-position three-way valve comprises a valve body cavity, a valve core and a valve seat, the valve body cavity is in communication with the oil pressing chamber via an oil exchanging passage, the valve body cavity has an oil inlet in communication with the oil supply passage, and the valve seat has a core hole in communication with the oil storage chamber via a bypass oil passage; in a case that the valve core is at a first valve position, the valve core blocks off the oil inlet, and the oil pressing chamber is in communication with the oil storage chamber through the oil exchanging passage, the valve body cavity, the core hole and the bypass oil passage; and in a case that the valve core is at a second valve position, the valve core blocks off the core hole, and the oil inlet is in communication with the oil pressing chamber via the valve body cavity and the oil exchanging passage; wherein the valve core comprises a guide seat having an axial fluid passage, a sealing member having an elastic umbrella-shaped edge, and a plug, the guide seat, the sealing member and the plug are connected in order in an axial direction to form a whole, and the guide seat and the elastic umbrella-shaped edge are both configured to cooperate with a periphery of the valve body cavity; in a case that the valve core is at the first valve position, the elastic umbrella-shaped edge stretches out in a radial direction to axially seal the valve body cavity; and in a case that the valve core is at the second valve position, the elastic umbrella-shaped edge contracts in the radial direction, and the valve core blocks off the core hole.