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公开(公告)号：US20240344629A1
公开(公告)日：2024-10-17
申请号：US18223550
申请日：2023-07-19
发明人： Feng ZHANG , Yunnan WEI , Jinghui FAN , Jianshen PAN
CPC分类号： F16K31/485 , F16K21/04 , F16K31/60
摘要： A timed gas cut-off device, which comprises a device body, comprising an inlet gas channel, an outlet gas channel and a valve rod channel; the inlet and outlet gas channels are respectively in communication with the valve rod channel, an accommodation chamber with a through hole communicating the accommodation chamber with the valve rod channel; a valve rod device, comprising a rod body slidably cooperating in the valve rod channel, a shim connected to the rod body and moves in synchronization with the rod body to open or close the valve rod channel; a free end of the rod body extends through the through hole and disposed inside the accommodation chamber; an elastic soft sealing piece, sealingly connected to the through hole, sleeved on the free end of the rod body; a timer with a drive piece connected inside the accommodation chamber for timed gas use and improves the safety.
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公开(公告)号：US20220316613A1
公开(公告)日：2022-10-06
申请号：US17440760
申请日：2020-09-25
发明人： Feng ZHANG , Yunnan WEI , Yanhua WANG , Jinghui FAN
IPC分类号： F16K17/30
摘要： A gas pressure regulator includes a valve body and a valve cover. The valve cover is covered on the valve body. The valve body is provided with a valve cavity, and the valve cavity is connected to an air inlet channel and an air outlet channel. The valve cavity includes a primary pressure regulating cavity and a secondary pressure regulating cavity, and the primary pressure regulating cavity and the secondary pressure regulating cavity are communicated with each other through a valve port. The primary pressure regulating cavity is communicated with the air inlet channel, and a valve core pressure regulating assembly is disposed between the primary pressure regulating cavity and the air inlet channel. The secondary pressure regulating cavity is communicated with the air outlet channel. A lever pressure regulating assembly is disposed between the valve port and the secondary pressure regulating cavity.
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公开(公告)号：US11668406B2
公开(公告)日：2023-06-06
申请号：US17440760
申请日：2020-09-25
发明人： Feng Zhang , Yunnan Wei , Yanhua Wang , Jinghui Fan
IPC分类号： F16K17/30
CPC分类号： F16K17/30
摘要： A gas pressure regulator includes a valve body and a valve cover. The valve cover is covered on the valve body. The valve body is provided with a valve cavity, and the valve cavity is connected to an air inlet channel and an air outlet channel. The valve cavity includes a primary pressure regulating cavity and a secondary pressure regulating cavity, and the primary pressure regulating cavity and the secondary pressure regulating cavity are communicated with each other through a valve port. The primary pressure regulating cavity is communicated with the air inlet channel, and a valve core pressure regulating assembly is disposed between the primary pressure regulating cavity and the air inlet channel. The secondary pressure regulating cavity is communicated with the air outlet channel. A lever pressure regulating assembly is disposed between the valve port and the secondary pressure regulating cavity.
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公开(公告)号：US11415236B1
公开(公告)日：2022-08-16
申请号：US17349466
申请日：2021-06-16
发明人： Feng Zhang , Yunnan Wei , Yanhua Wang , Hongbin Ren
摘要： A gas pressure regulating device is provided which comprises an upper housing and a lower housing, a pressure regulation cavity is disposed between the upper housing and the lower housing, a diaphragm assembly is disposed in the pressure regulation cavity, a gas inlet and a valve port for communicating the gas inlet with the pressure regulation cavity are disposed at one end of the lower housing. The gas pressure regulating device provided in the present invention has a simpler structure and fewer parts and is capable of effectively lowering the risks of dangerous accidents such as product leakage resulting from part failure, thus effectively ensuring stable pressure regulation performance.
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公开(公告)号：US11385661B1
公开(公告)日：2022-07-12
申请号：US17349761
申请日：2021-06-16
发明人： Feng Zhang , Yunnan Wei , Jinghui Fan , Minxiao Dai
摘要： A gas pressure regulating device is provided which comprises a housing, in which a first mounting cavity for installing a level-1 depressurization mechanism and a second mounting cavity for installing a level-2 depressurization mechanism are provided in sequence along the air intake direction; the level-1 depressurization mechanism comprises a sliding sleeve, and a mounting tubing which is communicated with the gas inlet is formed inside the first mounting cavity, and the sliding sleeve is slidably assembled between an outer wall of the mounting tubing and an inner wall of the first mounting cavity; the other end of the sliding sleeve is provided with a gas discharge orifice and a sealing gasket, and the gas inlet connector is in communication with the first mounting cavity through the gas discharge orifice; the sliding sleeve slides along the axial direction to adjust the openness of the gas outlet to realize the level-1 depressurization. The gas pressure regulating device provided comprising two levels of depressurization mechanisms, which is simple in structure and fewer in parts. Further, the device is capable of effectively reducing the risk of occurrence of dangerous accidents such as product leakage due to failure of parts, thereby effectively guaranteeing stability and accuracy of pressure regulation performance.
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