Tap water anti-freezing hollow valve

Abstract

The invention relates to a tap water anti-freezing hollow valve which comprises a valve shell (1), a conical hollow valve core (2), a gland (3) and a positioning flange (4), wherein the conical hollow valve core (2), the gland (3) and the positioning flange (4) are arranged in the valve shell (1); the positioning flange (4) is arranged at the top of the conical hollow valve core (2); the conical hollow valve core (2) is connected with the valve shell (1) through the gland (3); the valve shell (1) is provided with a water inlet (5), a drainage port (6) and a conical valve core hole (7); the upper part of the conical hollow valve core (2) is cylindrical, and the lower part of the conical hollow valve core (2) is conical; a water outlet (8) is arranged on the cylindrical part of the conical hollow valve core (2); and a circular hole (9) is arranged at the side surface of the conical part of the conical hollow valve core (2). The valve provided by the invention has a simple structure, is convenient and safe to use, and can be used for effectively solving the problem that an outdoor tap water pipeline is frozen in winter.

Description

technical field [0001] The invention relates to a valve, in particular to a tap water antifreeze hollow valve. Background technique [0002] At present, in the northern part of my country, due to the low temperature in winter, the water pipes in the yards of tap water users cannot be used due to freezing. Generally, there are dry wells in the yards. There are two sets of pipelines in the dry wells, steel pipes in summer and steel pipes in winter. Use hose. Take out the rubber hose from the dry well every time you use water, and put it back into the dry well in time after use. If you don't pay attention to the water nozzle touching the wall of the dry well, water will leak and the phenomenon of filling the well will occur. Sometimes the water pressure is high or the rubber hose is not firmly fixed, and a large amount of water will leak, forming a safety hazard. It is inconvenient and unsafe to use tap water in winter. Contents of the invention [0003] The technical proble...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a tap water antifreeze hollow valve, which has a simple structure, is convenient and safe to use, and solves the problem of outdoor tap water pipelines being frozen in winter

[0005] Compared with the prior art, the present invention has the following beneficial effects: the present invention is simple in structure, convenient and safe to use, and effectively solves the problem of tap water valves being frozen in winter, so that only one set of iron pipelines needs to be installed in tap water dry wells, no longer need Install the rubber pipeline, convenient and practical

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