Simple hole plugging device and using method thereof

The invention discloses a simple and convenient hole plugging device and a using method thereof. The simple and convenient hole plugging device comprises a plug, a support, a screw rod, a gasket, a plug and a blast hole. Wherein one end of the plug is a pointed end, faces the blockage and is used for increasing the friction force between the blockage and a hole wall, so that the blockage is effectively prevented from rushing out of a blast hole; the support is of a rhombic structure and used for being clamped in a blast hole. The screw rod is used for adjusting the width of the bracket; the gasket is located at the position where the support makes contact with the blast hole and used for increasing the friction force between the support and the blast hole. The simple hole plugging device disclosed by the invention can effectively improve the hole plugging effect of the blast hole, so that the blasting effect is improved, and the simple hole plugging device is suitable for various underground blasting projects