Hot and cold water mixing faucet
A technology of hot and cold water, mixing valve, applied in multi-way valve, valve device, valve details and other directions, can solve the problems of increasing the compression margin of O-ring, low followability of temperature sensing spring, and reducing temperature regulation performance, etc. Achieve the effect of reducing sliding resistance, good followability, and improving temperature regulation performance
Active Publication Date: 2020-01-31
NIPPON THERMOSTAT CO LTD
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Problems solved by technology
However, increasing the compression margin of the O-ring and increasing the frictional force will cause the movable valve body (control valve body) to be less responsive to the expansion and contraction of the temperature-sensitive spring (actuator), thereby reducing the temperature regulation performance. subject
Method used
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Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0096] In Comparative Example 1, the O-ring supporting the control valve body was made of hexafluoropropylene-vinylidene fluoride copolymer (FKM) (hardness 70°, rebound rate 14%). Noise generation was investigated under the same conditions as in Comparative Example 1. The results are shown in Table 1.
Embodiment 2
[0098] Noise generation was examined under the same conditions as in Example 1 except that the compression ratio of the O-ring 10 in Example 1 was set to 3.3%. The results are shown in Table 1.
Embodiment 3
[0100] Such as Figure 6 As shown, the arrangement of the O-ring 10 in Example 1 was changed from the intermediate point P to the side of the hot water inlet A (in the area F), and the noise was investigated under the same conditions as in Example 1. produce. The results are shown in Table 1.
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An object of the present invention is to provide a hot and cold water mixing faucet capable of suppressing a noise without degrading hot water temperature control performance. The faucet at least comprises a cylindrical casing 1 having a hot water inlet A, a cold water inlet B, a mixing chamber C for mixing hot and cold water, and a mixed water outlet D for discharging the mixed water; an actuator4 accommodated in the casing; and a control valve body 2 for adjusting the opening degree of the hot water inlet and the cold water inlet. The control valve body advances and returns back in the axial direction of the casing along with the stretching and contracting of the actuator and adjusts a ratio of hot water and cold water is adjusted according to the fact that the temperature for mixing the hot water and the cold water is a set temperature. The faucet also comprises O-type rings 10 which are arranged between the casing 1 and the control valve body 2 and between the hot water inlet A and the cold water inlet B, and the O-type rings 10 are formed of hexafluoropropylene-vinylidene fluoride copolymer (FKM) or butyl rubber.
Description
technical field [0001] The present invention relates to a hot and cold water mixing valve (soup and water mixing valve), and more particularly relates to a cold and hot water mixing valve which suppresses generation of noise (abnormal sound). Background technique [0002] For a long time, as a device for mixing hot water and cold water to generate mixed water at a specified temperature set by the user, the hot and cold water mixing valve has been widely used in sanitary equipment (サニタリーequipment) for showers, bathtubs, and washstands. )Wait. [0003] Generally, the hot and cold water mixing valve includes: a housing having a mixing chamber for mixing hot water and cold water, an inlet for hot water and an inlet for cold water provided on the housing, and a regulator accommodated in the housing. Valve body for controlling the opening of the hot water inlet and the opening of the cold water inlet. [0004] In addition, inside the mixing chamber, a temperature-sensitive sprin...
Claims
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IPC IPC(8): F16K11/00F16K47/02F16K27/00
CPCF16K11/00F16K47/026F16K27/00E03C1/041F16J15/32Y10S277/944
Inventor 川岛拓麻根岸功丸山善太畠山七海
Owner NIPPON THERMOSTAT CO LTD
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