Synchronous Hook and Pin Locking Mechanism for Heavy LED Modules

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Solution Overview

Problem

Existing methods for connecting heavy LED boxes in an LED display screen are time-consuming and labor-intensive, requiring multiple people and significant materials due to the use of fixed metal pieces and screws.

Innovation Solution

A locking connection device with a locking module and an inserting module, featuring a hook and bump mechanism, along with a driving module that synchronizes the movement of a fixing pin and hook for secure connection, and a safety mechanism to prevent accidental disengagement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If fixed metal pieces and screws are used to connect heavy LED boxes, then connection strength is sufficient, but installation time and labor requirements increase significantly

Engineering Contradiction:
Improveconnection strengthVSAvoidinstallation time
Core Design Contradiction:
StrengthVSLoss of time

Solution Approach 1:

The connection device is divided into separate functional modules: a locking module with hook and bump for rapid engagement, and an inserting module with fixing pin and fixing hole for secure positioning. This segmentation allows the locking function to be performed quickly while the fixing pin provides structural reinforcement, resolving the contradiction between fast installation and strong connection.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The hook and bump are designed to engage in preliminary action before the fixing pin is fully inserted. The hook-pre-engagement with the bump provides immediate mechanical interlocking that can support the box weight, allowing workers to secure the connection quickly before completing the fixing pin insertion, thus reducing installation time while maintaining connection strength.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If fixed metal pieces and screws are used to connect LED boxes, then connection reliability is high, but labor and material costs increase

Engineering Contradiction:
Improveconnection reliabilityVSAvoidinstallation ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The locking module with hook and bump is designed to self-engage automatically when the boxes are brought together. The hook snaps onto the bump without requiring manual alignment or additional fastening operations, making the connection process intuitive and easy to perform while maintaining reliable mechanical interlocking.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The locking module and inserting module are combined into a single integrated connection device. The locking module provides immediate mechanical interlocking while the inserting module with fixing pin reinforces the connection, merging rapid engagement with secure fixation in one unified component, thereby improving ease of operation without compromising reliability.

Inventive Principle:
Principle #5Merging (Combining)

3Stability of the object's composition

If multiple people are required to assemble heavy boxes with traditional methods, then connection stability is ensured, but productivity decreases

Engineering Contradiction:
Improveconnection stabilityVSAvoidassembly productivity
Core Design Contradiction:
Stability of the object's compositionVSProductivity

Solution Approach 1:

The connection device acts as an intermediary mechanism between two LED boxes, providing a standardized interface that simplifies the connection process. The hook-bump locking mechanism and fixing pin-inserting module create a reliable mechanical bond that ensures connection stability while requiring minimal manual intervention, thereby increasing assembly productivity.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Strength

If traditional screw fixation is used, then structural strength is maintained, but the connection process becomes complex and time-consuming

Engineering Contradiction:
Improvestructural strengthVSAvoidconnection process complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The connection device segments the fastening function into two independent modules: the locking module with hook and bump for rapid engagement, and the inserting module with fixing pin and fixing hole for structural reinforcement. This segmentation simplifies the overall connection process by providing clear, distinct steps that are easier to perform than traditional screw fixation, reducing complexity while maintaining structural strength.

Inventive Principle:
Principle #1Segmentation

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables rapid and secure connection of heavy boxes with reduced labor and material costs by aligning and engaging the hook with the bump, ensuring a tight and convenient locking process.

Implementation Method 1

A flat spring is fixed on the first base

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS8733987B2Locking connection device, LED box and LED display screen
Publication Date: 2014.05.27 UNILUMIN GRP
  • US8733987B2 patent drawing
  • US8733987B2 patent drawing
  • US8733987B2 patent drawing

AI summary

A locking connection device, an LED box and an LED display screen are provided. The device includes a locking module and an inserting module. The locking module includes a hook and a bump matching with each other. The inserting module includes a fixing pin and a fixing hole matching with each other. The fixing pin and hook are fixed on a first base, and the bump and the fixing hole are fixed on a second base. The locking connection device further includes a driving module that propels the hook and the fixing pin to move synchronously. When the driving module finishes a travel, the hook and the bump are securely connected, and the fixing pin and the fixing hole are securely connected. Since the locking module according to the present invention locks the movement of the first base and the second base along the axial direction of the fixing pin and meanwhile the inserting module locks a circumferential movement of the fixing pin, the first base and the second base are securely fixed. Additionally, the sizes of the fixing pin, the fixing hole, the hook and the bump can be selected to match the weight of the box to lock and connect heavy boxes, thus realizing a convenient installation.