pressure tank

Abstract

The invention discloses a pressure water storage tank which comprises a water bag and an outer barrel, wherein a water bag connecting pipe is connected with a port of the water bag; a water bag joint is connected with the port of the outer barrel; a water through hole is formed on the water bag connecting pipe; the water bag joint comprises a first annular wall and a second annular wall; a first water inlet / outlet and an air valve jointing port are arranged on the first annular wall; a second water inlet / outlet is formed at the top of the water bag joint; the second water inlet / outlet is in sealed connection with the outer wall of the water bag connecting pipe located above the water through hole; the first water inlet / outlet is communicated with the water through hole; the second annular wall of the water bag joint is in sealed connection with the outer wall of the water bag connecting pipe located under the water through hole; the air valve jointing port and the first annular wall are formed into an air channel; the air channel is communicated with an air cavity. The pressure water storage tank provided by the invention has the advantages of scientific and compact structure, professional and beautiful appearance, convenience in detaching, cleaning or exchanging the water bag, excellent sealing property, use convenience, wide use scope, low production cost and high yield.

Description

technical field [0001] The invention relates to a pressure water storage tank, or a pressure water storage tank, or a water storage tank, and relates to its overall structure, a molding method of key components, materials used and the like. Background technique [0002] The pressure water storage tank is also called a water storage pressure bucket or a vacuum pressure water storage bucket. It can generally be used as a water storage unit of a pure water machine; it can also be connected to a pipeline with a water pump to absorb the additional pressure caused by the frequent startup of the water pump. To maintain the balance of system pressure. [0003] Common pressure water storage tanks on the market have been disclosed by some patents. Wherein, the patent No. 200920070001.8 discloses a pressure water storage tank, the water bladder is fixed together by screw connection by means of an upper end cover and a lower end cover. In actual use, because the sealing surface is too...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a pressure water storage tank in order to overcome the defects of poor air tightness, difficulty in forming water bladders and high cost in the prior art

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