| 主权项 |
1. An interlocking telescopic rod-type defense spray apparatus, used to spray contents of an irritant gas can disposed inside telescopic rods after locking between the telescopic rods is unlocked, a protruding output tube being provided at a top portion of the irritant gas can, a press-ring portion being provided at a periphery of the output tube and being subject to an external force to spray the contents from the output tube, the defense spray apparatus comprising:
a first tube body, having a head-end portion and a tail-end portion, a receiving chamber having a relatively large diameter being provided in an intra-tube space of the head-end portion, an opening being provided on an end surface of the receiving chamber and being used for the irritant gas can to be held in the receiving chamber, and an inner edge being provided at an opening on an end surface of the tail-end portion, to form an inwardly-shrinking hole; a cap, tightly covering the opening of the receiving chamber, a recessed seat being provided at a center of a surface, facing the receiving chamber, of the cap, a through hole being provided at a center of the recessed seat, the press-ring portion of the irritant gas can corresponding to the recessed seat, and the output tube being aligned with the through hole; a compression elastic piece, disposed and kept between the recessed seat and a can body top portion of the irritant gas can; and a second tube body, having a rod body portion, the rod body portion comprising an upper tube, a lower tube, and a telescopic-rod packing device connecting the upper tube and the lower tube, the second tube body being inserted from the head-end portion of the first tube body, so that the lower tube is exposed from the tail-end portion of the first tube body, and the upper tube and the telescopic-rod packing device are limited inside the first tube body by using the inner edge of the inwardly-shrinking hole, the telescopic-rod packing device having an upper seat fixedly connected to the upper tube, a lower seat fixedly connected to the lower tube and having a diameter greater than that of the inwardly-shrinking hole, an eccentric shaft having two ends separately fixedly connected to the upper seat and the lower seat, and a packing ring disposed around the eccentric shaft and contacting an inner wall of the first tube body, the packing ring having an eccentric hole corresponding to the eccentric shaft, the eccentric hole having a gap, the eccentric hole being disposed around the eccentric shaft by using the gap, a fingering board that rotates synchronously with rotation of the lower tube being provided on the lower seat of the telescopic-rod packing device, a locking and stopping structure being formed on a rotation path, corresponding to the fingering board, of the packing ring, so that the eccentric shaft and the fingering board rotate synchronously to enable the eccentric packing ring to radially deviate outward, and at the same time to push the locking and stopping structure by using the fingering board, so that the packing ring that deviates to an outer side is locked on the inner wall of the first tube body with a single point, or the lower tube is rotated reversely to enable the fingering board to release a pushing force of pushing the fingering board, to enable the packing ring that deviates to an outer side to move back to an axial center of the first tube body to release the first tube body, a top rod structure being provided at an end, away from the upper seat, of the upper tube, and a sheath structure being fixedly disposed at an end, away from the lower seat, of the lower tube,wherein
after the telescopic-rod packing device releases the first tube body, the sheath structure of the second tube body is held and pushed toward the first tube body, so that the top rod structure pushes a can body bottom portion of the irritant gas can, to press the press-ring portion to spray the contents. |
