Valve plate assembly capable of accurately adjusting temperature and valve core capable of accurately adjusting temperature

Abstract

The invention discloses a valve plate assembly capable of accurately adjusting temperature and a valve core capable of accurately adjusting temperature. The valve plate assembly includes a moving valve plate and a fixed valve plate. The fixed valve plate is provided with a cold water inlet, a hot water inlet and a mixed water outlet. The mixed water outlet is located in the middle of the fixed valve plate, the cold water inlet is located in the upper left end of the mixed water outlet, and the hot water inlet is located in the upper right end of the mixed water outlet. A main communication groove is formed in the lower surface of the moving valve plate, and the main communication groove is located in the upper middle of the moving valve plate and maintains communication with the mixed water outlet. The fixed valve plate is further provided with a cold water replenishment port and / or a hot water replenishment port, the cold water replenishment port and the cold water inlet are located on a same side of the mixed water outlet, the hot water replenishment port and the hot water inlet are located on the other side of the mixed water outlet, and a water replenishing groove is formed inthe lower surface of the moving valve plate. The water replenishing groove is located in the lower side of the main communication groove. The water replenishing groove can simultaneously communicate with the cold water replenishing port, the hot water replenishing port and the mixed water outlet. The valve plate assembly and the valve core can accurately adjust the temperature of outlet water in afine adjustment area.

Description

technical field [0001] The invention relates to a valve core, in particular to a valve plate assembly and a valve core capable of precise temperature regulation. Background technique [0002] At present, most spools use ceramic valve components to control the mixing ratio of cold and hot water when adjusting the outlet water temperature. As shown in the Chinese patent No. 2004201186654, a movable valve plate and a fixed valve plate are installed in the valve core, and the fixed valve plate is provided with a cold water inlet hole, a hot water inlet hole and a water outlet hole, and a communicating flow channel is opened on the movable valve plate. One end of the communication flow channel is always connected with the water outlet hole, and the other end of the communication flow channel can be connected with the cold water inlet hole and the hot water inlet hole simultaneously or separately by adjusting the position of the communication flow channel. The temperature of the ...

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Problems solved by technology

[0003] The following problems exist in the existing temperature-regulating valve core: 1. In the main temperature-regulating range, the corresponding rotation angle of the moving valve plate is small; 2. The valve core has poor reducibility, making it difficult to accurately adjust the outlet water temperature

[0007] like figure 1 As shown, the existing spool is in the main temperature adjustment range, and there is a large difference between the forward rotation and reverse rotation of the movable valve plate. If the user wants to adjust the outlet water temperature to a certain temperature, he needs to repeatedly rotate forward and reverse. Moving valve plate, difficult to adjust, inconvenient to adjust

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