Modernization Escalator With Nested Truss Assembly Without Truss Removal
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Solution Overview
Problem
Existing escalators require complete dismantling for upgrades, which is time-consuming, labor-intensive, and costly, and can damage the building structure.
Innovation Solution
An upgraded escalator design that integrates a truss assembly with the original truss, allowing components to be installed without dismantling, using a truss assembly with transverse width less than the original, and connected via bolt and screw rod structures to maintain structural integrity and avoid interference with existing truss members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the original escalator is completely dismantled for upgrade, then the new escalator can be installed, but the building structure may be damaged and the upgrading process becomes time-consuming and labor-intensive
Solution Approach 1:
The new truss assembly is nested within the original truss structure. The patent describes embedding the new truss assembly into the original truss, allowing the new escalator components to be installed inside the existing structural framework without complete dismantling, thus reducing upgrading time and protecting the building structure
Solution Approach 2:
The truss assembly is divided into multiple sections that can be independently installed and connected. The patent mentions that the truss assembly includes multiple sections embedded into the original truss, with middle sections connected end-to-end, allowing for modular installation that reduces overall upgrading time
2Adaptability or versatility
If the original escalator is completely dismantled for upgrade, then the new escalator can be installed, but the upgrading process becomes labor-intensive and costly
Solution Approach 1:
The new truss assembly is nested within the original truss structure, eliminating the need for complete dismantling. This approach maintains the existing building structure while allowing installation of new escalator components, significantly improving upgrading efficiency and reducing labor costs
Solution Approach 2:
The new truss assembly is designed and prepared in advance with pre-fabricated sections that can be directly installed into the original truss. The middle sections are prepared with connection structures that facilitate quick assembly, improving upgrading productivity
3Ease of manufacture
If the truss assembly transverse width is reduced to fit within the original truss, then the new escalator can be installed without dismantling, but the structural design becomes more complex
Solution Approach 1:
The truss assembly is segmented into multiple sections with standardized connection interfaces. The middle sections include upright bars extending beyond the flattened body to form extension structures that connect to supplementary chord members and diagonal members, creating a modular design that simplifies installation despite the reduced transverse width
Solution Approach 2:
The connection structures utilize the vertical dimension by having upright bars extend beyond the flattened body to form extension structures. This allows connections to be made in the vertical direction rather than requiring horizontal space, accommodating the reduced transverse width while maintaining structural integrity
Data Source
Figure 1~2
Figure 3~4
Figure 5A~5B
AI summary
A modernization escalator, which is assembled with an original truss of an original escalator. The original truss is provided with a plurality of transverse rod pieces. The modernization escalator comprises a truss assembly and a plurality of escalator components that are assembled with the truss assembly; the truss assembly comprises a lower machine room, a lower steering section, a middle section group, an upper steering section, and an upper machine room; the transverse width of the truss assembly is smaller than the transverse width of the interior of the original truss, and when the truss assembly is embedded into the original truss, the truss assembly avoids the traverse rod pieces; the middle section group is formed by connecting a plurality of middle sections end to end; each middle section comprises an upper flat body, the upper flat body is provided with a plurality of groups of vertical rods, and the vertical rods extend out of the bottom of the upper flat body to form an extension structure; the upper flat bodies of the middle sections are connected end to end to form the middle section group. According to the modernization escalator, an escalator can be modernized while an original truss is reserved, thereby reducing modernization costs and improving the modernization efficiency.