目的 在运输物品过程中，输送带因长时间使用可能会发生断裂现象，目前断带保护装置无法及时进行保护，因此需要对断带保护装置进行改进。方法 应用TRIZ理论中的功能模型分析和因果链分析方法对整个系统进行分析，应用76条标准解、发明原理和分离原理等工具解决问题。结果 基于TRIZ理论对问题进行求解，得到了新型输送带断带保护装置的结构方案，该方案可以有效缩短断带保护所需时间，有效提高断带保护的精准性，从而保护生命财产的安全。结论 通过TRIZ理论对输送带断带保护装置进行创新设计，使新型输送带断带保护装置达到了快速反应、制动精准和结构简单的要求。

During the transportation of goods, the conveyor belt may break after a long time, and the belt breakage protection device cannot provide protection in a timely manner. Therefore, it is necessary to improve the belt breakage protection device. Functional model analysis and causal chain analysis in the TRIZ theory was used to analyze the entire system, and tools such as 76 standard solutions, invention principles, and separation principles were used to solve the problem. The solution to the problem through the TRIZ theory resulted in a new structural scheme for the conveyor belt breakage protection device. The scheme could effectively shorten the time required for breakage protection, improve the accuracy of breakage protection, and protect the safety of life and property. In conclusion, by applying TRIZ theory to innovate the design of conveyor belt breakage protection device, the new conveyor belt breakage protection device has achieved the requirements of fast response, precise braking, and simple structure.