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Patent Searching and Data


Title:
COILED TYPE GAS SHUTOFF VALVE
Document Type and Number:
WIPO Patent Application WO/2019/114671
Kind Code:
A1
Abstract:
Provided is a coiled type gas shutoff valve, a valve core portion of the valve being composed of a shutoff surface (2) that is coilable, flexible and that blocks airflow, as well as a support surface and a reel (6) thereof. A corresponding transmission device is provided to rotate the reel so that the shutoff surface (2) is reeled on the reel (6). The change of the shutoff area of the shutoff valve is determined by how much a wind block projection surface of the valve core shutoff surface is changed through curling. During the changing process, there is no slip between the valve core shutoff surface and a valve body frame.

Inventors:
LIU, Jianguo (708 F Building, 1969 Shunhua Rood Innovation Zon, Jinan Shandong 1, 250101, CN)
YAO, Chaosheng (708 F Building, 1969 Shunhua Rood Innovation Zon, Jinan Shandong 1, 250101, CN)
YAO, Hang (708 F Building, 1969 Shunhua Rood Innovation Zon, Jinan Shandong 1, 250101, CN)
DONG, Dianjun (708 F Building, 1969 Shunhua Rood Innovation Zon, Jinan Shandong 1, 250101, CN)
Application Number:
CN2018/120166
Publication Date:
June 20, 2019
Filing Date:
December 11, 2018
Export Citation:
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Assignee:
SHANDONG SHENGHUA INVESTMENT CO, LTD (YAO Chaosheng, 708 F Building, 1969 Shunhua Rood, Innovation Zon, Jinan Shandong 1, 250101, CN)
International Classes:
F16K3/02; F16K31/60
Foreign References:
CN103671998A2014-03-26
CN206347125U2017-07-21
CN204553889U2015-08-12
Attorney, Agent or Firm:
WENGHENG INTELLECTUAL PROPERTY AGENCY OFFIC (WANG, XiB119D, No.16, Fenghuang San Rood, Huangpu Zon, Guangzhou Guangdong 0, 510000, CN)
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