A type of internal hex screw
By designing a combination structure of slots, inserts, and elastic plates in the internal hexagon screw, the problem of screw head damage under high torque is solved, enabling the screw to be disassembled and replaced, thus improving maintenance efficiency and equipment stability.
CN224515621UActive Publication Date: 2026-07-17厦门恒亿丰实业有限公司
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 厦门恒亿丰实业有限公司
- Filing Date
- 2025-09-15
- Publication Date
- 2026-07-17
Smart Images
Figure CN224515621U_ABST
Abstract
This utility model discloses an internal hexagon screw, comprising a screw with a slot at its top, a plug being engaged within the slot, and two sets of limiting grooves symmetrically distributed about the slot. The plug has two sets of elastic plates symmetrically distributed about its central axis, each set embedded within one of the limiting grooves. The plug has a head at its top, with a connecting groove on one side. One end of the plug is fixedly connected to one side of the connecting groove. The head also has a rotating groove, and a connecting assembly is provided on the plug. This utility model addresses the problem of head damage preventing proper disassembly or replacement of the internal hexagon screw, effectively extending the overall screw's lifespan, avoiding the need to replace the entire screw with each failure, significantly reducing maintenance costs, and greatly improving maintenance efficiency.
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