Arc-Plate Gate Ejector Rod Assembly for Lower Processing Error

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Solution Overview

Problem

Wrought iron gates with square pipe structures face significant processing errors due to manual cutting and bending, leading to high rejection rates and compromised aesthetics.

Innovation Solution

The gate and ejector rod are designed with pre-processed arc-shaped main and side plates, connected using clamping protrusions and grooves, allowing for precise assembly and reducing errors through welding at joints.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If square pipe structures are used for gate ledges and manual cutting and bending are performed, then the gate can be manufactured with traditional methods, but processing errors increase and aesthetic consistency deteriorates

Engineering Contradiction:
Improveprocessing errorVSAvoidmanual cutting and bending
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The patent applies preliminary action by pre-processing the main plate and side plates into arc structures with required sizes before assembly. The plates are pre-cut and pre-bent to precise dimensions, then assembled using clamping protrusions and grooves. This eliminates the need for manual cutting and bending during gate assembly, thereby reducing processing errors and improving manufacturing precision while maintaining ease of manufacture through modular assembly.

Inventive Principle:
Principle #10Preliminary action

2Productivity

If traditional square pipe structures are used, then the structure is simple and easy to manufacture, but the rejection rate increases due to processing errors affecting aesthetics

Engineering Contradiction:
ImproveyieldVSAvoidprocessing error
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The patent applies segmentation by dividing the gate structure into separate modular components: a main plate and multiple side plates, each pre-processed into arc structures. These segmented components are assembled using clamping protrusions and grooves with welding at joints. This segmentation allows each component to be manufactured independently with high precision, reducing overall processing errors and improving yield by enabling easier detection and replacement of individual defective parts.

Inventive Principle:
Principle #1Segmentation

3Manufacturing precision

If arc structures are pre-processed and assembled with clamping protrusions and grooves, then processing errors are reduced and yield improves, but the structural complexity increases

Engineering Contradiction:
Improvesize processing errorVSAvoidstructure
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent applies merging by integrating the clamping function directly into the structural design of the main plate and side plates through clamping protrusions and grooves. These features are built into the arc structures themselves rather than being separate components. The protrusions and grooves serve dual purposes: they provide the necessary clamping force to hold the pre-processed arc plates together while also acting as guiding features for accurate alignment, thereby reducing structural complexity despite the increased manufacturing precision.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS20260092468A1Gate and ejector rod thereof
Publication Date: 2026.04.02 ZHEJIANG DONGRUI IND & TRADE CO LTD
  • US20260092468A1 patent drawing
  • US20260092468A1 patent drawing
  • US20260092468A1 patent drawing

AI summary

A gate and an ejector rod thereof are disclosed, the ejector rod includes a main plate, a first and a second side plate. A first and a second clamping protrusion are provided at two sides of the main plate. The first side plate is provided with a first clamping groove matched with the first clamping protrusion, and so is the second side plate. The main plate, the first and the second side plate are each processed into a respective arc structure, and one side of the main plate is detachably connected with the first side plate, and the other side of the main plate is detachably connected with the second side plate. After the ejector rod is assembled, welding is performed at joints of the first clamping groove and the first clamping protrusion, and of the second clamping groove and the second clamping protrusion.