Xuzhou Heavy Machinery Co., Ltd.

Lei Zhao

Zenghai Shan

Shouwei Wang

Dong Wang

Yinmei Ren

Houbao Qi

The present application relates to a switching valve, a switching hydraulic system, and a crane, in which the switching valve having an oil inlet and an oil outlet comprises at least two pairs of valve oil ports, a pair of cartridge valves provided between each pair of valve oil ports, and the oil inlet and the oil outlet are controlled such that the oil inlet and the oil outlet are capable of shifting between communications with the at least two pairs of valve oil ports. The switching valve switches on and off communication between the oil inlet and the oil outlet and the at least two pairs of valve oil ports by controlling opening or closing of the cartridge valves.

Growing community of inventors

Xuzhou, China

Lei Zhao