Probe, connection structure and detection system

The utility model provides a probe, a connection structure and a detection system, the probe can comprise a probe body, a probe sleeve and a positioning piece, and the probe body can be installed in the probe sleeve. The needle body can comprise a needle head and a main body, the needle head can be arranged at one end of the main body and is used for contacting with a to-be-detected workpiece, and the main body is provided with a positioning groove. The needle sleeve is provided with a first through hole corresponding to the positioning groove of the main body. The positioning piece can be used for penetrating through the first through hole and the positioning groove so as to limit axial rotation of the needle head. According to the technical scheme, the problem that in the prior art, a probe is prone to rotating in the process of pressing down the workpiece can be solved, and the detection precision is improved. 本申请提供一种探针、连接结构和检测系统，探针可以包括针体、针套和定位件，针体可以安装在所述针套内。针体可以包括针头和主体，针头可以设置在主体的一端，针头用于与待测工件相接触，主体设有定位槽。针套