国内文丘里注肥器的研究都应用三维建模软件对每个结构完成实体模型和流体模型的构建，为了减少前期建模基础工作所花费的时间，提高设计效率，快速进入后期仿真分析和实体加工，需要一种快速建模方法。因此，探究文丘里注肥器的结构关键几何参数，借助Solidworks建模软件二次开发功能，通过其API接口函数与Visual C++交互式编程语言的链接，实现文丘里注肥器的参数化结构设计并开发两种典型结构文丘里注肥器的参数化建模软件平台，一次性生成实体模型及对应的内部流体模型，为流体性能分析和实体加工进行实验测试提供快速结构设计。

In China, the research of Venturi injector applies 3D modeling software to construct the solid model and fluid model for each structure. In order to reduce the time spent on the pre-modeling work, improve the design efficiency and quickly step into the later simulation analysis and solid manufacturing, a fast modeling method are needed. Therefore, the key geometric parameters of Venturi injector are sought and the secondary development function of the Solidworks modeling software is used. The parametric design on structure of Venturi injector can be implemented through the link between its API interface function and the Visual C++ interactive programming language. The parametric modeling platform constructing a solid model and the corresponding internal fluid model at one time is developed for two typical structures of Venturi injector, which provides rapid structural design for of performance analysis of fluid and experimental testing of solid.