Quick release nut drill chuck

By employing bearing interference fit and elastic sleeve design in the nut removal drill bit sleeve, the structure is simplified, the problem of complex accessories in existing sleeves is solved, rapid disassembly and assembly and stability are achieved, and costs and production cycles are reduced.

CN224488972UActive Publication Date: 2026-07-14BOSKY DRILL BITS CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Utility models(China)
Current Assignee / Owner
BOSKY DRILL BITS CO LTD
Filing Date
2025-08-25
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The existing nut removal drill bit sleeve has a complex structure and many parts, which increases the processing and assembly costs and is not conducive to maintenance, making it difficult to achieve rapid disassembly and assembly.

Method used

The design employs an interference fit with an internal bearing in the sleeve, with the connecting rod connected to the bearing. The elastic sleeve is interference fitted onto the connecting rod and presses against the bearing, simplifying the structure. The elastic pressure of the elastic sleeve stabilizes the bearing, eliminating the need for additional fastening components. Multiple pairs of 'U' grooves are used to accommodate nuts of different specifications.

Benefits of technology

The simplified structure reduces the number of parts and costs, improves assembly and disassembly efficiency, ensures the stability and smoothness of the sleeve, and reduces production cycle and procurement costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224488972U_ABST
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Abstract

The utility model discloses a nut quick dismounting drill head sleeve, including sleeve, bearing, connecting rod and elastic cover. The sleeve is equipped with the inner chamber of one end open, and the coaxial connecting hole and bearing mounting hole have in the inner chamber bottom wall center, and the outer wall of inner chamber opening side is equipped with multiple pairs of directly opposite "U" type groove, bearing interference assembly is in bearing mounting hole, and the one end of connecting rod is connected with bearing through the connecting hole, and the other end extends out sleeve and is equipped with the connecting end of connecting drill head, and the elastic cover interference cover is installed in the connecting rod part in the inner chamber of sleeve, and the bottom surface is pressed in bearing surface. The sleeve realizes steady keeping through the elastic cover pressing bearing, and the additional fastening part is saved, and the structure is simplified, and the cost is reduced, and at the same time, the different tools are adapted with the aid of multiple pairs of "U" type groove, realize the quick dismounting of nut, and improve the operation efficiency.
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