Locking device for pole

A locking device for a pole, the pole having a plurality of connection tubes foldably coupled to each other in the lengthwise direction thereof, wherein the lower connection tube 4 having a relatively smaller diameter than the upper connection tube in the two neighboring connection tubes is foldably inserted into the upper connection tube 2 in such a manner as to be locked to the upper connection tube 2 or released from the locked state, the locking device comprising:

• a grasping tube 200 having a body 210 coupled to the end periphery of the upper connection tube 2, incision portions 222 formed at the left and right sides in the radial direction in such a manner as to provide an upper arch-shaped grasping piece 220 and a lower arch-shaped grasping piece 230 formed independently on the upper and lower portions thereof, and upper and lower pressing parts 224 and 234 extended outwardly from both sides of each of the upper arch-shaped grasping piece 220 and the lower arch-shaped grasping piece 230, the upper and lower pressing parts 224 and 234 formed on each of both left and right sides thereof having through-holes 226 and 236 formed to be passed in an up and down direction therethrough;
• operating pins 300 each adapted to be inserted in an up and down direction into the through-holes 226 and 236 of the upper and lower pressing parts 224 and 234;
• and
• an axial lever 400 having a pressing plate 410 extended in the lengthwise direction of the pole and a cam type hinge part 420 extended from the pressing plate 410 in such a manner as to be hinge-coupled to the upper protruded end portions of the operating pins 300 to a state of being rotated in the lengthwise direction of the pole.