| 主权项 |
1. A positioning control mechanism of an expandable baton, the expandable baton at least comprising a first pipe and a second pipe, an end of the second pipe inserted and passed into the first pipe via other end of the first pipe and exposed out of the end of the first pipe, the first pipe provided with a clamping groove portion on two opposite inner walls thereof near the end thereof, and the second pipe provided with shifting holes respectively disposed on two opposite wall surfaces thereof near other end thereof, and the positioning control mechanism comprising:
an activating mechanism, comprising two activating blocks which are movably positioned in the shifting holes corresponding thereto, and provided with a hook groove portion respectively disposed thereon, the activating blocks hooked to combined integratedly via the hook groove portions, wherein when the outer edge of the other end of the second pipe is abutted against the inner edge of the end of the first pipe, outer edges of the activating blocks are expanded outwardly due to the restoring force between the activating blocks, and respectively inserted into the clamping groove portions, and the first pipe and the second pipe can be expanded and positioned form a long-rod shape; a releasing rod, mounted inside the first pipe, and an end of the releasing rod corresponding to a releasing hole formed between the hook groove portions, wherein when other end of the releasing rod is pressed, the end of the releasing rod is inserted into the releasing hole to enable the outer edge of the activating block to be retracted inwardly and not be inserted in the clamping groove portions corresponding thereto, so the second pipe can be retracted into the first pipe and positioned to form a short-rod shape. |
