Special tool for disassembling filter element of seawater reverse osmosis security filter

The utility model relates to a special tool for disassembling a filter element of a seawater reverse osmosis security filter. At present, as an O-shaped ring is arranged on a filter element of the seawater reverse osmosis security filter and is sealed with an internal hole of the security filter, the tightening force is large, and the O-shaped ring cannot be directly pulled out by hand. The special tool for disassembling the filter element of the seawater reverse osmosis security filter comprises an insertion pipe (1), a base (2), a sleeve (3) and a disassembling assembly (4), the circle center of the base is vertically connected with the insertion pipe, the sleeve is sleeved on the insertion pipe, the area of the base is larger than the cross sectional area of the sleeve, and the disassembling assembly is installed at the end of the insertion pipe; the disassembling assembly is composed of two hook pieces (4-1), a compression spring (4-2) and a pin shaft (4-3) of a cylindrical structure, the two hook pieces