Sliding block type expansion bolt

The invention provides a sliding block type expansion bolt. The sliding block type expansion bolt comprises a bolt body, an outer sleeve and a nut. The outer sleeve is arranged outside the bolt body,the nut is matched with the bolt body, a gasket and a spring cushion are further arranged between the nut and the outer sleeve, a sliding hole is formed in the outer sleeve, a sliding block is installed in the sliding hole, and when the bolt body is driven by the nut to move, and the bolt body can push the sliding block to slide outwards so as to be locked. The bolt body is driven by the nut to rotate outwards, the front portion of the bolt body pushes the sliding block to slide outwards so that the sliding block can be inserted into a wall, due to the fact that the sliding block of the deviceslides outwards and is inserted into the wall deeply, deep occlusion can be generated when the device is used on low-hardness materials such as hollow bricks, wood, hardboards and rubber, and the sliding block type expansion