Tool for installing double nuts, spring washers and flat washers in narrow space

By designing a double nut, spring washer, and flat washer installation tool for narrow spaces, and utilizing the through-hole structure of the barrel and the rotation of the handle to simultaneously screw the nut into the screw, the problems of washers easily falling off and low installation efficiency in narrow spaces are solved, achieving an efficient installation effect.

CN223326320UActive Publication Date: 2025-09-12SHANDONG TAIKAI HIGH VOLTAGE SWITCH
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Patent Information

Application Number
CN202422819923.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-19
Publication Date
2025-09-12
Estimated Expiration
2034-11-19

AI Technical Summary

Technical Problem

When installing double nuts and washers in a narrow space, the washers are easy to fall off and the installation efficiency is low. The existing technology requires multiple operations, resulting in inconvenience in installation.

Method used

A double nut, spring washer, and flat washer installation tool for a narrow space is designed. The nut, spring washer, and flat washer are placed into the barrel at one time through the through-hole structure in the barrel. The barrel is rotated by a handle to simultaneously screw the nut into the screw. The external threaded sleeve is used to ensure that the nut and washer are tightened.

Benefits of technology

It realizes the one-time installation of double nuts and washers in a small space, avoids the washers from falling, improves the installation efficiency and simplifies the operation process.

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Abstract

The utility model relates to a tool for installing double nuts, spring washers and flat washers in a narrow space, which comprises a cylinder body, a first through hole, a second through hole and a third through hole are sequentially arranged in the cylinder body along the axial direction in a penetrating manner, and the first through hole, the second through hole and the third through hole are coaxially arranged; the flat gasket is placed in the first through hole, and the depth of the first through hole is not greater than the thickness of the flat gasket; the nut and the spring washer are placed in the second through hole, the aperture of the second through hole is smaller than the outer diameter of the flat washer, and the shape of the cross section of the second through hole is matched with the shape of the outer contour of the placed nut; the hole diameter of the third through hole is smaller than the outer diameter of the nut and larger than the hole diameter of a screw hole of the nut. The nuts and the spring washers are sequentially placed in the second through holes, and the flat washers are placed in the first through holes, so that the double nuts, the spring washers and the flat washers are mounted in the barrel, the problem that the washers fall off is avoided, the double nuts can be screwed into the screw rod simultaneously by rotating the barrel during mounting, and use is convenient.
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