Improved structure of precision ceramic control balance valve

Abstract

An improved structure of a precision ceramic control balance valve includes: a valve body, a rotating seat, a movable valve plate, a fixed valve plate, a base, and a balance valve. The movable valve plate has a mixing chamber recessed upwards on its bottom surface. Two pressure relief grooves are connected to one side of the mixing chamber and are kept separate from each other. The mixing chamber of the movable valve plate has at least one pressure relief hole penetrating through it. The rotating seat has a recessed air chamber on its side that abuts the movable valve plate, allowing the air chamber and the pressure relief hole to communicate smoothly after the rotating seat and the movable valve plate are stacked. A sealing element is fitted around the outer periphery of the air chamber.

Claims

1. An improved structure of a precision ceramic control balancing valve, comprising a rotating seat assembled within a valve housing, below which, within the valve housing, are a movable valve plate and a fixed valve plate stacked sequentially. A valve stem extending upwards from the center of the rotating seat extends from the valve housing. The rotating seat engages the movable valve plate, allowing the movable valve plate to rotate via the valve stem and the rotating seat. This rotation alters the alignment between the movable and fixed valve plates, enabling the opening and closing of water flow, or the adjustment of the hot and cold water mixing ratio and flow rate. A base below the valve housing prevents the fixed valve plate, the movable valve plate, and the rotating seat from falling out. The base contains a pre-reserved water inlet chamber, within which a balancing valve is installed. The valve housing has an internal chamber with an upper port formed by a narrowed annular wall. The rotating seat, the movable valve plate, and the fixed valve plate are sequentially placed into the chamber of the valve housing, allowing the valve stem to pass through the valve housing via the upper port. The bottom surface of the movable valve plate has a recessed mixing chamber. One side of the mixing chamber has two pressure relief grooves connected to it, and these two pressure relief grooves are kept separate from each other. The fixed valve plate has a cold water flow hole and a hot water flow hole arranged in opposite directions. A first water outlet hole is provided between one end of the cold water flow hole and the hot water flow hole, and a second water outlet hole is provided between the other ends of the fixed valve plate. The base has a water inlet chamber and two water outlet chambers pre-reserved inside. A cold water inlet and a hot water inlet, which are kept separate from each other, pass through the base above the water inlet chamber. The water outlet chambers are located on both sides of the water inlet chamber, allowing the two water outlet chambers to be separated. The base is not penetrated by a first outlet and a second outlet. When the rotating seat, the movable valve plate, and the fixed valve plate housed in the chamber are stacked sequentially, the fixed valve plate, the movable valve plate, and the rotating seat are supported by the base through the valve housing and the base. In addition to the fixed valve plate being secured on the base, the cold water inlet, the hot water inlet, the first outlet, and the second outlet of the base are aligned with the cold water flow hole, the hot water flow hole, the first outlet hole, and the second outlet hole of the fixed valve plate, respectively. In the normal state where the valve rod is not operated, the mixing chamber of the movable valve plate will avoid the hot water flow hole, the first outlet hole, and the second outlet hole of the fixed valve plate, so that both cold and hot water are blocked by the movable valve plate and cannot flow out from the precision ceramic control balance valve. Its characteristic is: The mixing chamber of the movable valve plate is provided with at least one pressure relief hole that penetrates the movable valve plate. The rotating seat has a recessed air chamber on the side that abuts the movable valve plate, so that the air chamber and the pressure relief hole can communicate smoothly after the rotating seat and the movable valve plate are stacked. A sealing element is fitted around the outside of the air chamber.

2. An improved structure for the precision ceramic control balance valve as described in claim 1, wherein, The precision ceramic control balance valve is equipped with a temperature limiting device to restrict the rotation angle of the valve stem.

3. An improved structure for the precision ceramic control balance valve as described in claim 1, wherein, The sealing element is a water-stop ring.

4. An improved structure for the precision ceramic control balance valve as described in claim 1, wherein, An adapter seat is fitted onto the valve stem.

5. An improved structure for the precision ceramic control balance valve as described in claim 1, wherein, When in use, the precision ceramic control balance valve is placed in a valve chamber reserved in a water distribution valve seat. The water distribution valve seat has a cold water inlet channel, a hot water inlet channel, a first water outlet channel and a second water outlet channel that communicate with the valve chamber.

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