The invention belongs to fire fighting, particularly relates to the technical field of fire fighting equipment, and discloses a fire fighting hose reel which comprises a fire fighting reel body, a mounting frame is mounted on the fire fighting reel body, a circulation part is arranged on the mounting frame and comprises a case, the case is mounted on the mounting frame, a first
piston cylinder is mounted in the case, and a second
piston cylinder is mounted in the first
piston cylinder. The middle of the first
piston cylinder integrally communicates with a water inlet, one end of the first
piston cylinder communicates with a water receiving
pipe, a restraining part is arranged on the circulation part, forward
water hammer restraining is adopted, the restraining part attenuates the
instantaneous speed and pressure of
water flow through
kinetic energy conversion and gas buffering, the hose is prevented from being straightened and swung due to instantaneous
high pressure, and the
water flow is prevented from being damaged. By means of reverse
water hammer digestion,
inert gas
backflow of the compensation portion and pressure compensation, reverse
impact generated by sudden stopping of
water flow is counteracted,
fatigue cracking of a hose connector due to repeated
impact is avoided, and secondary risks of high-pressure water flow jetting are reduced.