A three-stable switching valve

Abstract

The invention discloses a three-stable state switching valve. The three-stable state switching valve comprises a shell; the shell is provided with a water inlet and at least two water outlets. The three-stable state switching valve further comprises a water diversion shuttle used for switching water diversion and a pressing switching assembly provided with at least three stop parts; the water diversion shuttle is installed inside the shell and is provided with water sealing parts corresponding to the stop parts; the water sealing parts are matched with the water outlets in a switching mode so that any water outlet can output water; the pressing switching assembly is matched with the water diversion shuttle, drives the water diversion shuttle to move and comprises a pressing drive unit, a limiting base and a preloaded spring, the limiting base is provided with at least three stop parts, the pressing drive unit is provided with connection parts matched with the stop parts, and the preloaded spring acts on the part between the pressing drive unit and the limiting base. According to the three-stable state switching valve, the pressing drive unit is matched with three or more stop parts on the limiting base, and therefore the water diversion shuttle matched with the pressing drive unit can have at least three switching modes.

Description

technical field [0001] The invention relates to the bathroom industry, in particular to a three-stable switching valve. Background technique [0002] At present, most of the existing tri-stable switching valves use electronically controlled tri-stable switching mechanisms, specifically: switching by means of electric control, and relying on electromagnetic coils to maintain the switching position; for example, the patent number is: 200920071370.9, published The patent titled "A Tri-stable Solenoid Valve" published on February 17, 2010, realizes the structure of maintaining the stable position through the holding coil structure in the solenoid valve after it is energized; It can only be used after the process. For the energy-saving and environmental protection goals advocated now, that is, power supply through hydropower generation, it is difficult to achieve maintenance after switching; in addition, the existing switching mechanism structure is too complicated, and generally...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the existing tri-stable switching valves use electronically controlled tri-stable switching mechanisms, specifically: switching by means of electric control, and relying on electromagnetic coils to maintain the switching position; for example, the patent number is: 200920071370.9, published The patent titled "A Tri-stable Solenoid Valve" published on February 17, 2010, realizes the structure of maintaining the stable position through the holding coil structure in the solenoid valve after it is energized; It can only be used after the process. For the energy-saving and environmental protection goals advocated now, that is, power supply through hydropower generation, it is difficult to achieve maintenance after switching; in addition, the existing switching mechanism structure is too complicated, and generally only one or two are considered. The switching position, that is, the switching between the switching position and the reset position, such as the switching structure of a ballpoint pen, but it can only achieve two logical switching states, and can only realize two functions; in summary, the existing switching mechanism is difficult to meet the existing use requirements

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