Bollard is installed in the upper part of the structure of the pier for the ship mooring facilities. Bollard generally made of a metal material, the shape is cylindrical, hence the name. Bollard according to berth capacity, wharf structure type design selection, to meet the ship away from the dock, mooring, shifting berth and turn around and so safe and reliable operation and ease of use requirements. Bollard from the shell, bolt, nut, washer, anchor plates and columns heart filler. Bollard made of cast iron (HT200) and steel (ZG230-450), Specification Model: 50KN-2000KN Shandong dock bollards, Chen Hua machinery, dock bollards provided by the China Machinery Equipment Co., Ltd. Qingdao Chen. Chen Hua Machinery Co., Ltd. Qingdao, Shandong Qingdao bollard housing, a leader in CNC machine tools bollard suppliers, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Chen Hua Machinery leadership in the staff warmly welcome all inquiries to discuss bollard create Chen Hua Machinery better future. ]: Peaking power plants and power plant downstream water flood cause short ups and downs, a direct impact on the downstream upright safe berthing and loading and unloading operations. Reference Lock floating bollard principle, study and put forward a new floating dock mooring bollard installed devices suitable for instantaneous water level amplitude, gives ideas and methods to solve problems downstream berthing plant. To further verify the reliability of the floating plant operation, namely the role of river flow to generate power at a greater level, the float to overcome the resistance (anti-seizure) free lift, respectively, mechanical characteristics under a single unit and multiple unit carried out a further analysis, a set of proposed method increased the anti-anti-card card guide wheel and linkage, which can effectively prevent the pontoon Run "stuck." In this study, the use of the device in the actual project to lay a solid foundation, and provide a reference for similar projects. Steel bollard | Bollard | Chen Hua Chen machinery provided by the China Machinery Equipment Co., Ltd. Qingdao. Qingdao Chen Hua Machinery Co., Ltd. (www.qdchenhua.com) strong, credible, in Qingdao, Shandong CNC machine tool industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Chen Hua machinery into the brilliant and you work for a better future!