目的 针对渡海登岛作战过程中步兵分队弹药携行防护问题， 设计一种组合式两栖便携防护装具， 提高战时抢滩登陆过程中弹药的保障能力。方法 采用理论分析和工程设计等方法， 运用三维设计工具SolidsWorks， 对防护装具结构进行设计与分析。结果 通过整体结构分析和关键部件设计， 解决了防护装具防水防潮、 水上漂浮、 携带便捷等问题， 满足设计功能要求。结论 通过对目前我军典型步兵弹药装载应用分析， 表明防护装具能够满足步兵分队多种弹药防护要求， 为渡海登岛作战弹药保障提供支持。

Targeting at the infantry unit ammunition protection problem in sea-crossing and island-landing operations, a combined amphibious portable protective equipment was designed to improve the ammunition support ability during island landing in wartime. Based on theoretical analysis and engineering design, using the 3D SolidsWorks design tool, ammunition amphibious protective equipment was designed and analyzed. The problems of waterproof, moistureproof, floating on the water and convenient carrying were solved by means of overall structure analysis and key parts design. The design functional requirements were met. Through analysis of typical infantry ammunition loading application, it was shown that the protective equipment could meet the protection requirements of a variety of infantry unit ammunition and provide support for ammunition support in sea-crossing and island-landing operations.