Cool water discharging method and a switch valve with cool water discharging function

Patent metadata

Field	Value
Publication number	US-2017191248-A1
Application number	US-201615362198-A
Country	US
Kind code	A1
Filing date	Nov 28, 2016
Priority date	Dec 31, 2015
Publication date	Jul 6, 2017
Grant date	—

Abstract

A cool water discharging method and a switch valve includes a valve body and a valve spool. The valve body is disposed with a thermosensitive module, an inlet passage, a first outlet passage, and a second outlet passage. The valve body has a cool water discharging passage connected to the inlet passage, a discharging hole connecting the first outlet passage and the cool water discharging passage and an air suction hole connecting the second outlet passage and the cool water discharging passage. When discharging cool water, water flows to the cool water discharging passage rapidly, the air in the second outlet passage is absorbed to the cool water discharging passage. The residual cool water in the second outlet passage is absorbed to the cool water discharging passage through the air suction hole and discharged out with the residual cool water in the first outlet passage.

First claim

1 . A switch valve with cool water discharging function, comprising a valve body, a valve spool and a thermosensitive module disposed in the valve body, the valve body is disposed with an inlet passage and a first outlet passage and a second outlet passages respectively connected to the inlet passage, wherein the valve body is further disposed with a cool water discharging passage connected to the inlet passage, a discharging hole connecting the first outlet passage and the cool water discharging passage and an air suction hole connecting the second outlet passage and the cool water discharging passage, the thermosensitive module is used to open and close the discharging hole;
when discharging cool water, the valve spool closes the first outlet passage and the second outlet passage, water flows to the cool water discharging passage through the inlet passage, suction force generates by the water flowing to absorb the residual cool water in the second outlet passage to the cool water discharging passage through the air suction hole, water flows through the discharging hole to mix with the residual cool water in the first outlet passage to exhaust out from the outlet of the first outlet passage; when the water temperature rises to the preset value, the thermosensitive module closes the discharging hole to finish the cool water discharging.

2 . The switch valve with cool water discharging function according to claim 1 , wherein a check valve used to open and close the second outlet passage is provided movably in the second outlet passage, the check valve opens the second outlet passage by the driving of the suction force; when the valve spool closes the first outlet passage and the cool water discharging passage, water flows to the second outlet passage through the one-way water hole in the check valve, at the same time the check valve closes the second outlet passage.

3 . The switch valve with cool water discharging function according to claim 2 , wherein the internal wall of the second outlet passage is protruding inwardly with a sealing ring, an elastic element is further provided to push the check valve to press on the sealing ring so as to close the second outlet passage; a cool water discharging clearance is formed between the check valve and the internal wall of the second outlet passage, the cool water discharging clearance is connected to the air suction hole.

4 . The switch valve with cool water discharging function according to claim 3 , wherein a joint is disposed in the second outlet passage, the elastic element is disposed in the joint, the check valve is movably sleeved on the joint to cover the elastic element.

5 . The switch valve with cool water discharging function according to claim 1 , wherein a speed-up passage is disposed at the front end of the cool water discharging passage, the speed-up passage is connected to the inlet passage, the water flowing area at the central portion of the speed-up passage is smaller than that at the two end portions of the speed-up passage, the air suction hole is connected to the rear end portion of the speed-up passage.

6 . The switch valve with cool water discharging function according to claim 1 , wherein the thermosensitive module comprises a flexible stick and a port used to open and close the discharging hole, the port is connected to the flexible stick.

7 . The switch valve with cool water discharging function according to claim 6 , wherein the thermosensitive module is disposed in the cool water discharging passage; when the water temperature is lower than the preset value, the flexible stick is situated in contracting state, the port opens the discharging hole; when the water temperature is higher than the preset value, the flexible stick is situated in extending state, the port closes the discharging hole.

8 . The switch valve with cool water discharging function according to claim 7 , wherein the thermosensitive module further comprises a reset element, the flexible stick and the reset element are respectively disposed at two sides of the discharging hole to clamp the port.

9 . The switch valve with cool water discharging function according to claim 8 , wherein the thermosensitive module further comprises a shaft sleeve base, the shaft sleeve base is connected to the internal wall of the cool water discharging passage in sealing way, the reset element and the port are disposed in the shaft sleeve base, the central portion of the port is disposed with a passage running through the port in the axial direction, the flexible stick pushes the port to move in the axial direction, the shaft sleeve base is disposed with a gap corresponding to the discharging hole.

10 . Cool water discharging method, wherein to discharge cool water, the water flows quickly through a cool water discharging passage and flows to a first outlet passage, the water mixes with the cool water residual cool water in the first outlet passage and the mixing water discharges out of the outlet of the first outlet passage; when the water flows quickly through the cool water discharging passage, suction force generates to absorb the residual cool water in a second outlet passage to the cool water discharging passage, the mixing water discharges out of the outlet of the first outlet passage; when the thermosensitive module senses that the temperature of the water discharged out of the outlet of the first outlet passage rises to the preset value, the thermosensitive module cuts off the connecting of the first outlet passage and the cool water discharging passage, water doesn't flow out of the first outlet passage, the cool water discharging is finished.

Assignees

• Zhou Huasong
• Xiamen Solex High Tech Ind Co Ltd

Inventors

• Lin Fangqi
• Dan Tangjun
• Gong Weiguo

Classifications

• F16K11/22 Primary

  with an actuating member for each valve, e.g. interconnected to form multiple-way valves · CPC title

• F16K31/02

  electric {(F16K31/004 takes precedence)}; magnetic · CPC title

• F16K31/002

  actuated by temperature variation (thermo-electric F16K31/025) · CPC title

• E03B1/048 Primary

  Systems for collecting not used fresh water · CPC title

• F16K15/026

  the valve member being a movable body around which the medium flows when the valve is open · CPC title