High-pressure-resistant constant-temperature faucet

Abstract

The invention provides a constant temperature faucet capable of bearing high pressure, which belongs to the technical field of sanitary faucets. Including the thermostatic valve body, the water diversion valve core, the thermostatic valve core, the water diversion valve core is built in the water diversion valve core cavity at one end of the thermostatic valve body; the thermostatic valve core is built in the thermostatic valve core cavity at the other end of the thermostatic valve body. It is characterized in that: the bottom surface of the moving piece of the water diversion valve core is provided with a mixed water diversion channel, wherein the inner wall of the mixed water diversion channel extends outwards and is provided with a pressure relief through hole penetrating through the moving piece. Thus, when the mixed water flows into the mixed water diversion channel from the mixed water inlet hole of the fixed piece, the mixed water will overflow to the outside of the moving piece through the through hole penetrating through the moving piece, so that the entire water diversion valve core is immersed in water , and then seal and pressurize the overflowing mixed water outside the water diversion valve core, the water pressure on the mixed water diversion channel of the moving piece, the top surface of the moving piece and its surrounding wall is due to the conduction of water and the progress of the mixed water The water pressure is consistent, the pressure difference between the various parts of the moving plate is greatly reduced, and the pressure can be stably under the condition of high-pressure water flow.

Description

technical field [0001] The invention belongs to the technical field of bathroom faucets, and in particular relates to a constant temperature water faucet capable of bearing high pressure. Background technique [0002] The thermostatic faucet is a commonly used water flow control device in the bathroom. In order to facilitate the shower and meet the user's spray preferences, the bathroom is often equipped with a top-mounted shower head and a hand-held shower head, so that It is required that the thermostatic faucet has the function of two-way water outlet. [0003] For example, a dual-way water outlet thermostatic faucet disclosed in a Chinese patent (application number CN201520658604.5) is a faucet of this structural type. A ceramic valve core is mentioned, that is, the water diversion valve core. As a common accessory of the faucet, the water diversion spool is used to switch the faucet on and off, so it is also called the switch spool or the switch spool. Its core compo...

AI Technical Summary

Problems solved by technology

However, there are still some problems in the actual test and use of this type of water diversion valve core: the diversion channels on the valve core moving plate are all blind holes, and the back side is closed. When the water diversion valve core is closed, it is used for mixing The diversion channel for water in and out diversion (referred to as the mixed water diversion channel here) is only connected to the mixed water inlet of the stator, and is used for a certain diversion channel for hot water source circulation (recorded as the first diversion channel here). diversion channel) communicates with the hot water inlet of the stator

However, the two pressurized diversion channels are asymmetrical lateral grooves and are arranged asymmetrically. There is a certain angle between their axis-symmetric lines. When the two diversion channels are stressed at the same time or a certain However, the blank area outside the diversion channel on the moving piece does not receive the force from the water pressure, which causes the problem of unbalanced force on the moving piece and a large difference in pressure on both sides of the bottom surface

[0006] When the hot water pressure or the water pressure in the mixed water channel is high, the moving piece under strong pressure will have a lever phenomenon, and the unbalanced force of the moving piece will cause the stressed part to be jacked up (there is a seal on the water diversion valve core). The ring is elastic, and it also provides a certain jacking space for the moving piece), the moving and fixed pieces are opened, the moving and fixed pieces will no longer be in a sealed state, and the function of closing the water of the water diversion valve core will be invalid, which will eventually lead to the failure of the faucet. Water strings and leaks in waterways cause waste of water resources

The pressure test (25bar, 60s) of the above-mentioned bottom-in and bottom-out structure of the water diversion valve core and the corresponding faucet is not stable, and needs to be further improved

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