A few days ago, the patent of "Locking the square groove of the check valve nut of a hydraulic excavator" issued by Guangxi Yuchai Engineering Co., Ltd. has successfully passed the examination of the State Intellectual Property Office and was granted a utility model patent.
“Hydraulic Excavator Check Valve Nut Locking Groove†is a new structure developed by Tan Jun, technical staff of Yuchai Engineering Machinery Research Institute. The advantage of this structure is that the nut can be locked without drilling, the positioning structure can be directly machined on the part, and can be directly locked to greatly increase the production efficiency; no damage to the screw thread ensures the performance of screw fastening; the pin is relatively easy to disassemble and the nut is disassembled. , The screw can be re-assembled and used, there is no problem that the nut produced under the locking method can not be reused after being disassembled, which can greatly save the cost.
View related topics: Yuchai won the "China Brand Annual Award NO.1" (internal combustion engine) title in 2007
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