Telescopic wrench

A telescopic wrench comprises an outer pipe, an outer lantern ring and an inner rod. The sleeving hole of the outer sleeve ring can be sleeved on the outer pipe, the reinforcing hole of the outer sleeve ring is in contact with the peripheral side of the rod section of the inner rod, and the outer sleeve ring forms an external auxiliary sleeving structure with the inner rod and the outer pipe. In this way, when the telescopic wrench is operated and used, the phenomena that an existing structure is prone to loosening and abnormal noise is generated are improved, and the structural strength for bearing acting force during operation is further improved. 一种伸缩扳手，其包括有外管、外套环与内杆。外套环的套接孔能套在外管，且外套环的加强孔提供内杆的杆段外周侧接触，外套环形成了与内杆、外管的外部辅助套接结构。如此提供伸缩扳手于操作使用时，改善过往现有结构容易有松动现象以及发生异音，更进一步提升操作时承受作用力的结构强度。