| 摘要 |
Disclosed is a gun bore cleaning device that improves the strong structure not to a fastened portion is not released at the time of reciprocating strikes of a cleaning brush, adds a shock damping structure, and provides benefits of a cost by minimizing its weight and use of materials. The gun bore cleaning device includes a hollow striking pipe; a hammer portion connected to a front end of the striking pipe, with a front portion protruding outward from the striking pipe and a rear portion being inserted into the striking pipe; a striking rod disposed in the striking pipe and penetrating the hammer portion to slide in forward and rearward directions, of which a front end being is formed with a cleaning brush fastening groove, and a tapered portion having a diameter increased from toward the front is formed on a rear side of the cleaning brush fastening groove; a rear strike portion disposed in the striking pipe and coupled to a rear end of the striking rod to strike a rear end surface of the hammer portion when the hammer portion moves backward; and a front strike portion provided with a cleaning brush fastened to the cleaning brush fastening groove, and a locking portion formed obliquely to correspond to the tapered portion, and fixed to the outside of the striking rod, so that as a rear end there of is stroked by the hammer portion, a shock is transmitted to the cleaning brush. Since the structure is strong, and the impact is dispersed by the structure of the rear strike portion and the damping portion, thereby increasing its durability and reducing noise. Also, the cleaning brush (60) is easily maintained, and it provides benefits of its cost by minimizing its weight and use of materials. |
