Koge Micro Tech Co., Ltd.

Shu-Hong Lin

Chih Chang

Po-Han Chang

Kang-Hung Yeh

Hsien-Liang Cheng

A depressurizing device includes a valve base, a first valve, a flexible member, and a top cover. The valve base has a pressure chamber and an outgassing chamber. Top and bottom surfaces of the pressure chamber have an opening and a first valve port respectively. The first valve is located in the pressure chamber and covers the first valve port. The flexible member is disposed on the valve base and has a depressurizing valve and a first outgassing port, the depressurizing valve covers the opening, and the first outgassing port is communicated with the outgassing chamber. A first outgassing channel is at least formed on the flexible member and communicates the pressure chamber to the outside of the valve base. The top cover is disposed on the flexible member and has a first depressurizing port and a second outgassing port.

Depressurizing device

A diaphragm pump includes a valve seat, a head cover covered on the valve seat, and a pair of valve plates. A surface of the valves seat is formed concavely with a first receiving trough with a first flow passage, and a second receiving trough with a second flow passage. One of the valve plates is disposed in the first receiving trough, and the other one is disposed in the second receiving trough. The first and second receiving troughs respectively have a geometric shape corresponding with that of the valve plate. The valve plate has a sealing part, and at least one extending arm extended outwardly from the sealing part. The sealing part has a geometric shape being bilaterally symmetrical. The extending arm has an arced end. A gap is existed between an edge of the valves plate and the first receiving trough or the second receiving trough.

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Taipei, Taiwan

Shu-Hong Lin