Single-faucet mechanical thermostatic valve for large water supply system

Abstract

The invention discloses a single-faucet mechanical thermostatic valve for a large water supply system. The single-faucet mechanical thermostatic valve comprises a self-feedback water temperature sensing mechanism, a multi-connecting-rod water temperature self-adaptive adjusting mechanism, a cold and hot water mixing mechanism and a faucet assembly. The invention belongs to the technical field of temperature control valves, and particularly relates to a single-faucet mechanical thermostatic valve for a large water supply system. Based on the thermal expansion principle of an object, a self-feedback water temperature sensing mechanism is creatively provided, the characteristic that liquid mercury expands with heat and contracts with cold obviously is utilized, the self-feedback water temperature sensing mechanism is creatively provided, the current water temperature is sensed through mercury, and the water temperature is controlled to be constant. The multi-connecting-rod water temperature self-adaptive adjusting mechanism and the cold and hot water mixing mechanism are driven to carry out adjusting work through the characteristic of thermal expansion and cold contraction, and under the condition that no electronic measuring device exists, self-adaptive and dynamic adjustment of the opening degree of the mixed cold water pipeline and the mixed hot water pipeline is achieved only through an ingenious mechanical structure; and the technical effect of keeping the water temperature when the water pressure changes is further achieved.

Description

technical field [0001] The invention belongs to the technical field of temperature control valves, in particular to a single tap mechanical thermostatic valve used in a large water supply system. Background technique [0002] The mixing valve generally controls the mixing ratio of cold and hot water by adjusting the opening of the cold water pipe and the hot water pipe, thereby controlling the temperature of the water flowing out of the faucet. It is constant, so as long as the angle of the faucet is adjusted in the family, the water temperature is basically constant. [0003] However, in large water supply systems with multiple taps connected in series, such as canteens, large kitchens, etc., since multiple sets of taps are fed from the same main pipe, if other taps are opened or closed, and the adjustment opening of hot and cold water is the same as this one If the faucet is inconsistent, then the water pressure in the hot and cold water pipes of the faucet cannot be chan...

AI Technical Summary

Problems solved by technology

[0003] However, in a large water supply system with multiple faucets in series, such as canteens and large kitchens, since multiple groups of faucets are fed from the same main pipe, if other faucets are turned on or off, and the opening of the hot and cold water is the same as the original If the faucets are inconsistent, the water pressure in the hot and cold water pipes of the faucet will not change proportionally, and the water temperature will change when the opening of the mixing valve remains the same.

[0004] At present, this problem is basically unsolvable, and can only be corrected by continuous manual adjustment.

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