Insulating sleeve convenient to install

The utility model relates to the technical field of insulating sleeves, and discloses an insulating sleeve convenient to install, which comprises a first sleeve ring, the inner wall of the first sleeve ring is provided with an arc-shaped groove, the first sleeve ring is internally provided with a storage groove, the interior of the storage groove is slidably connected with a clamping block, and the inner wall of the first sleeve ring is slidably connected with an insertion ring. According to the utility model, the second lantern ring is moved to enable the insertion ring to be inserted into the first lantern ring, when the sliding block is clamped into the arc-shaped groove, the second lantern ring is rotated to enable the sliding block to slide along the arc-shaped groove, and the clamping block can be clamped into the clamping groove for limiting under the extrusion of the spring, so that the effect of conveniently connecting and installing the insulating sleeve is achieved; the sleeve pipe is made of polye