Ratchet wrench

Abstract

The invention discloses a ratchet wrench. A bearing sleeve is arranged in a wrench body, a rotor assembly is arranged in the bearing sleeve, the rotor assembly comprises a corner wheel rotor and bearing rollers, the wrench is characterized in that the rotor assembly further comprises a positioning sleeve, a shift shifting piece and a shift switch, the positioning sleeve is movably arranged on theangle wheel rotor in a sleeve mode, tooth pieces are arranged on the side wall of the positioning sleeve, the bearing rollers are positioned between tooth pieces, a limiting hole is arranged on the bottom surface of the positioning sleeve, the shift switch is fixedly connected with the positioning sleeve, the shift shifting piece is arranged between the positioning sleeve and the shift switch, theshift shifting piece is fixedly connected with the corner wheel rotor, and the tip end of the shift shifting piece corresponds to the limiting hole of the bottom surface of the positioning sleeve. According to the wrench, the new corner wheel rotor assembly is designed, the shift switch drives the positioning sleeve to rotate to make the tooth pieces changed in position in the angle surface of the corner wheel rotor, and then make the bearing roller changed in position in the angle surface of the corner wheel rotor, the purpose of reversing is achieved, and the wrench is reasonable in structure, high in torque, easy to operate, low in manufacture cost, and long in service life.

Description

technical field [0001] The invention relates to a ratchet wrench, belonging to tools. Background technique [0002] The ratchet wrench is a commonly used tool. The rotor of the existing ratchet wrench generally has two structural forms, one is the ordinary star wheel structure, and the other is the angular structure (patent No. 2010201145467). No matter which form, due to its structure (Including manufacturing cost) restricts the material used in the product from being able to use high-carbon steel / alloy steel, and is only suitable for low-cost low-carbon steel. The product has disadvantages such as low toughness, low strength, and short service life. Contents of the invention [0003] The purpose of the present invention is to overcome the defects of the prior art and provide a ratchet wrench with a completely new structure. [0004] The technical solution of the present invention is: a ratchet wrench, including a wrench body, a bearing sleeve with a toothed outer ring i...

AI Technical Summary

Problems solved by technology

[0002] The ratchet wrench is a commonly used tool. The rotor of the existing ratchet wrench generally has two structural forms, one is the ordinary star wheel structure, and the other is the angular structure (patent No. 2010201145467). No matter which form, due to its structure (Including manufacturing cost) limits the material used in the product and cannot use high-carbon steel / alloy steel, only suitable for low-cost low-carbon steel. The product has disadvantages such as low toughness, low strength, and short service life.

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