A flame shield assembly for high temperature protection of a bolt
By installing a cylindrical and cap-shaped flame-retardant cover assembly on the bolt, the deformation problem of the bolt in high-temperature environments is solved, achieving effective fire and high-temperature protection as well as convenient disassembly and assembly.
CN224592535UActive Publication Date: 2026-08-04CHANGZHOU WEIAN ELECTRIC CO LTD
0 Cites 0 Cited by
Patent Information
- Application Number
- CN202521806798.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-25
- Publication Date
- 2026-08-04
- Estimated Expiration
- 2035-08-25
AI Technical Summary
Technical Problem
Bolts are prone to deformation in high-temperature environments, affecting connection stability and making disassembly and inspection difficult. Existing technologies lack effective high-temperature protection measures.
Method used
Design an assembly comprising a cylindrical flame-retardant cover and a flame-retardant cap head, which is fitted onto a bolt to prevent high-temperature damage, and is clamped and limited by the cooperation between the cap head and the rotating part of the nut.
Benefits of technology
It effectively prevents the adverse effects of high temperature on bolt structure, has a simple structure, is easy to manufacture, has good fire resistance and high temperature resistance, and is easy to disassemble and assemble.
✦ Generated by Eureka AI based on patent content.
Abstract
This utility model relates to a flame-retardant cover assembly for high-temperature protection of bolts. Its features include a cylindrical flame-retardant cover and a cap-head flame-retardant cover. The cylindrical flame-retardant cover is fitted over the outside of the bolt threaded sleeve, with its inner diameter larger than the outer diameter of the bolt threaded sleeve. The cap-head flame-retardant cover is fitted over the outside of the bolt and nut rotating part, and the cap-head flame-retardant cover is connected to the bolt and nut rotating part via a fitting. The bolt and nut rotating part and the bolt threaded sleeve are integrally connected. The cylindrical flame-retardant cover is pressed and limited by the fit between the cap-head flame-retardant cover and the bolt and nut rotating part. This utility model has the advantages of simple structure, ease of manufacture, strong fire and high-temperature resistance, and easy assembly and disassembly.
Need to check novelty before this filing date? Find Prior Art