The invention discloses a combined type buckle arrestor for a
fiber-reinforced composite flexible
pipe. The combined type buckle arrestor comprises a
metal outer
lantern ring and a
fiber-reinforced inner
lantern ring; the
metal outer
lantern ring comprises a main lantern ring body, a locking lantern ring body and an elastic seal
gasket; the
fiber-reinforced inner lantern ring comprises a fiber-reinforced layer and a base body
protection layer; the fiber-reinforced inner lantern ring is located on the outer side of the composite
pipe and bonded with the composite
pipe in a hot-melting mode, thus, the pipe is locally thickened so as to achieving promoting of buckling resistant capacity; and the
metal outer lantern ring wraps the fiber-reinforced inner lantern ring in an
interference fit modeso that the fiber-reinforced inner lantern ring can be assisted in achieving of buckling arresting, and meanwhile, the composite pipe can be prevented from being bent excessively by means of the gooddeformation resistant performance of the metal outer lantern ring, so that
stress concentration of the fiber-reinforced inner lantern ring is reduced. The bonding characteristic of materials of the composite pipe is reasonably utilized to achieve
machining of the fiber-reinforced inner lantern ring, and the fiber-reinforced inner lantern ring is assisted by the metal outer lantern ring so as to improve the local structural strength; and the combined type buckle arrestor has the advantages of both a steel
pipe welding type buckle arrestor and a steel pipe buckling-pressing type buckle arrestorand has wide popularization value and practical value.