Thread fixing structure and method thereof

The invention belongs to the technical field of transformer casting, and particularly relates to a thread fixing structure and a method thereof. The thread fixing structure comprises a core mold, a thread and a sealing ring, wherein the inner wall of the thread is provided with inner screws, the core mold is a cylindrical optical axis, the thread is sleeved on the core mold, and the thread is fixed and sealed by one or a plurality of sealing rings sleeved on the core mold. The thread fixing structure is optimized and designed on the basis of the original core mold, while not affecting the structure, a self-made O-shaped sealing ring is embedded in a groove to achieve the purpose of compact structure and reliable sealing, the production is simple and fast, and the production efficiency is effectively improved. 本发明属于互感器浇注技术领域，特别涉及一种螺套的固定结构及其方法。包括芯模、螺套及密封圈，其中螺套的内壁设有内螺纹，芯模为圆柱形光轴，螺套套设于芯模上，且螺套通过套设于芯模上的一个或多个密封圈固定和密封。本发明是在原芯模的基础上进行优化设计，在不影响结构的同时，利用自制的O型密封圈嵌入沟槽中，达到结构紧凑密封牢靠稳固的目的，而且制作简单快捷，生产效率得到有效的提升。