本实用新型不仅结构简单，强度高，而且固连快捷，使用方便。
The twist wire hose clamp of the utility model not only has simple structure and high strength, but also has rapid fixed connection and convenient use.
模型不管时固连还是紧密插接在珠串上，当轨道顷斜时，模型都不会从轨道上掉落。
Whether the model is fixed or closely inserted at the bead chain, the model will not fall off a rail when the rail slants.
外壳内，设有小切换齿轮、分别与大链轮和大齿轮固连的端面齿轮轴、变速齿轮组和发电机组。
A small switching gear, a contrate gear shaft respectively fixedly connected with a big chain wheel and a big gear, a speed change gear set and a generator set are arranged in the casing.
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