Stainless Steel Handrail Modular Assembly with Dowel Locking
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Solution Overview
Problem
The manufacture of stainless steel handrails for balconies and stairs is costly and labor-intensive due to complex manufacturing and assembly processes, and existing solutions either require high maintenance, are prone to corrosion, or are excessively expensive.
Innovation Solution
A handrail system using prefabricated stainless steel tubes and parts with a dowel screw locking mechanism, embedded brackets for stability, and self-leveling anchor plates to simplify assembly and reduce costs, allowing for disassembly and assembly at the site.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If stainless steel handrails are manufactured using traditional methods, then high quality and durability are achieved, but manufacturing cost and assembly time are excessively high
Solution Approach 1:
The handrail system is divided into modular components: vertical posts, horizontal rails, and connection brackets. Each component is pre-fabricated with standardized connection features (slots, holes, mounting surfaces) that enable rapid assembly through simple mechanical connections without complex welding or fastening procedures, thus reducing assembly time while maintaining structural integrity
Solution Approach 2:
Connection brackets are pre-attached to vertical posts during manufacturing, and mounting holes/slots are pre-drilled and positioned. This preliminary preparation eliminates the need for on-site measurements, drilling, and alignment adjustments, allowing workers to simply connect pre-assembled modules, thereby dramatically reducing assembly time while ensuring consistent quality
2Reliability
If stainless steel handrails are manufactured using traditional methods, then high quality and durability are achieved, but manufacturing cost is excessively high
Solution Approach 1:
By segmenting the handrail into standardized modular components, manufacturing can be optimized through batch production and specialized tooling for each component type. This reduces per-unit costs compared to custom fabrication, while the modular design allows for efficient assembly with minimal skilled labor, thereby reducing overall manufacturing cost while maintaining high quality
Solution Approach 2:
The connection brackets are designed with universal mounting features that can accommodate different post and rail configurations. This standardization allows the same bracket design to be used across multiple applications and locations, reducing design and tooling costs, and enabling economies of scale in manufacturing while maintaining adaptability and quality
3Ease of operation
If plugs are used for assembly, then assembly is simplified, but structural support is insufficient under pressure
Solution Approach 1:
The connection bracket merges multiple functions into a single component: it provides the mounting surface for attaching the rail to the post, incorporates slots and holes for alignment and adjustment, and includes reinforcement features that distribute mechanical loads. This integrated design eliminates the need for separate plugs while providing both assembly simplicity and structural strength
Data Source
Figure 1
Figure 2-A~2-C
Figure 3
AI summary
The present invention relates to a handrail consisting of prefabricated tubes and parts made of stainless steel of the type using longitudinal bars (1) and a plurality of vertical rails (2); and wherein in order to attach the handrail to the floor a series of pillars (6) are provided to which the bars (1) are attached by means of brackets (10), said pillars (6) being attached to the floor by means of an anchor plate (11); characterized in that the rails (2) are attached to the bars (1) by means of a dowel screw (5) which locks the bars in place by passing entirely or partially therethrough; and wherein the brackets (10) have a conical recess (7) for attaching to the longitudinal bar (1) by means of a screw having a conical head (9); and wherein the plate (11) has perforations (12) for anchoring the pillar (6) to the floor with screws (8), as well as threaded holes (13) for leveling said pillar (6) by means of screws (5).