Hidden frame lower track structure of heavy sliding door

By designing a hidden-frame under-track structure, the shortcomings of traditional heavy-duty sliding door tracks in terms of aesthetics, sealing, and stability are solved. This achieves a hidden-frame effect for the track and structural stability, enhances the aesthetics and transparency of the building space, and simplifies the installation process.

CN224048998UActive Publication Date: 2026-03-27朱俊飞
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Patent Information

Application Number
CN202520752519.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2026-03-27
Estimated Expiration
2035-04-21

AI Technical Summary

Technical Problem

Traditional heavy-duty sliding door track structures are inadequate in terms of aesthetics, sealing, and stability. They are also complex to install and costly, failing to meet the requirements of modern architecture for a simple and streamlined appearance and the aesthetic demands of high-end projects.

Method used

A hidden-frame lower track structure is designed. By setting slides and connecting profiles on the lower track profile, and filling the filling area with materials such as marble or wood flooring, the hidden-frame effect is achieved. The stability is enhanced by the integrated structure of the connecting part and the receiving frame part, and a buried water trough is set to prevent water accumulation.

Benefits of technology

This design achieves a concealed frame effect for the track, enhancing the aesthetics and openness of the building space, improving structural stability and sealing, simplifying the installation process, reducing the chance of foreign objects entering, and extending the track's service life.

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Abstract

The utility model discloses a hidden frame lower rail structure of a heavy sliding door, which relates to the technical field of door and window section bar structures and comprises a lower rail section bar, a lower rail section bar and a lower rail section bar, the door leaf profile is arranged on the slide way in a sliding manner; the connecting sectional material is connected to the lower rail sectional material and located between the lower rail sectional material and the door leaf sectional material, and a filling area used for filling materials is arranged on the connecting sectional material; wherein the part, except the slide way, of the lower rail profile is located in the vertical projection range of the filling area; after the filling area is filled with ground decoration materials such as marble and wood floors, the lower rail sectional material is effectively shielded, an abrupt frame of a traditional rail is eliminated, a heavy sliding door can be better fused into the surrounding environment, wide and transparent visual perception is brought to the building space, the strict requirement for attractiveness of modern buildings, especially high-end projects is highly met, and the sliding door is suitable for popularization and application. And the overall appearance of the building is greatly improved.
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