Conical helical spring and spinning wheel type fish wire wheel with same

The present invention relates to a conical helical spring. A wire with the rectangular cross section is bent in a helical shape to form the conical helical spring with the small and large ends; the conical helical spring is characterized in that the height of the rectangular cross section of the wire is greater than the width, and the end surfaces of the small and large ends of the conical helicalspring are both designed as the planes; adjacent spring rings are partially overlapped in the axial direction when the conical helical spring is in a natural state; and when the conical helical spring is in an axial complete stress state, in the adjacent spring rings, the small spring ring is located in the large spring ring, and the end surfaces of the spring rings are flush, so that the conicalhelical spring which is difficultly warped in the radial direction and has the relatively long linearization property is provided for people. The invention further discloses a spinning wheel type fish wire wheel with the spri