Hand Puller and a Central Shaft Structure Thereof

A hand puller comprising:

• a base, a pulling member, two ratchets, and two central shafts, wherein
• the base includes a first side and a second side, the first side includes a fixed pillar with a fixed rope, the second side includes a controlling portion with an axial hole to insert the two central shafts therein;
• the pulling member includes a first segment and a second segment, the first segment includes an axial connecting portion with an axial bore, the second segment includes a holding portion, the axial connecting portion of the pulling member matches with the controlling portion of the base, the axial bore is used to insert the two central shafts therein so that the pulling member swings axially relative to the base;
• each of the two ratchets includes a plurality of teeth formed around a peripheral side thereof and an orifice disposed on a central portion thereof to match with the central shafts, the ratchet is fixed on the controlling portion of the base and inserted by the central shafts by means of the orifice;
• the base includes a removable retaining member mounted therein, the pulling member includes a movable rod, and the retaining member and the movable rod contact with the ratchet respectively;
• the central shaft is solid and made of a metal bar material, the central shaft includes two ends between which an outer surface is defined, and each end of the central shaft includes a limiting member formed to be higher than the outer surface so that the base and the ratchets are positioned on the central shafts.