Insulator built-in column head glass piece

By changing the external column cap to an internal column cap and encapsulating it with silicone sealant, the problem of self-explosion of external column cap glass insulators due to narrow structural space and temperature difference was solved, and the product qualification rate and production efficiency were improved.

CN223401438UActive Publication Date: 2025-09-30武志文 +2
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Patent Information

Application Number
CN202421743101.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-23
Publication Date
2025-09-30
Estimated Expiration
2034-07-23

AI Technical Summary

Technical Problem

Existing external column-cap glass insulators are prone to self-explosion due to narrow structural space and temperature differences, and impurities are difficult to completely remove during the production process, resulting in a high self-explosion rate and inconvenient operation.

Method used

The external column head is changed to a built-in column head, the steel foot hole is adjusted to an upward structure, and silicone sealant is used to seal it, keeping the structural height and connection marks of the glass insulator unchanged, and the manufacturing process is improved to adapt to the production of built-in column head glass parts.

Benefits of technology

It reduces the self-explosion rate of glass insulators, improves the qualified rate, solves the problem of inconvenient operation in narrow space, and improves production efficiency and product quality.

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Abstract

The utility model discloses an insulator built-in column head glass piece and a manufacturing method thereof, which are used as one of disc-shaped suspension type glass insulator production and manufacturing technologies, and are characterized in that the structural shape of an external column head glass piece is changed, a glass piece column head is changed from an external mode to an internal mode (figure 1), a steel foot hole is changed from a downward mode to an upward mode, and the glass piece column head is made of glass. The structural height of an existing external column head glass piece is greatly reduced, the steel foot is completely exposed in the state that the steel foot is shielded by the middle umbrella disc and the lower umbrella disc, the steel cap is mostly shielded by the middle umbrella disc and the lower umbrella disc from the exposed state, the technical margin is formed, and the narrow structure and related technical problems are solved; the technical parameter H value of the structure height of the built-in column head glass insulator meets the existing technical standard specification, manufacturing automation and digital transformation are facilitated, technical performance improvement and new-quality iteration upgrading of a glass piece are achieved, and the self-explosion rate of the glass piece is reduced. The method is suitable for designing and manufacturing the built-in column head glass piece of an extra-high voltage large-tonnage insulator and an insulator with the voltage class below.
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