Angle-Adjustable Locking Structure for Curved LED Screen Splicing

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Solution Overview

Problem

Existing locking devices for LED display screens are complex, costly, and require large installation spaces, making them difficult to install and increasing the overall thickness of the screen due to their large size and complex structure.

Innovation Solution

A locking device comprising a first lock body with an angle rotating disc and a second lock body with a spring lock, featuring bevels on the angle rotating disc that can adjust the connection angle between LED display screens, allowing for precise arc splicing with improved locating accuracy and reduced splicing difficulty, featuring a compact design that minimizes installation space requirements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If existing locking devices use multiple components to achieve basic strength, then the locking strength is sufficient, but the device complexity increases and the overall size becomes large

Engineering Contradiction:
Improvelocking strengthVSAvoidstructure complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The patent integrates multiple locking components into a single integrated locking body structure. The locking body incorporates the locking head, positioning features, and connecting mechanisms in one unified component, eliminating the need for separate rotary lock heads, fixed heads, and multiple adjusting pieces. This merging maintains the required locking strength while significantly reducing structural complexity and the number of parts.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The locking body is designed as a multi-functional component that simultaneously provides locking, positioning, and angle adjustment capabilities. The integrated structure performs multiple functions that previously required separate components, including surface-to-surface contact for locking, bevel engagement for positioning, and rotational movement for angle adjustment, all within a single compact unit.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If existing locking devices use multiple components, then the locking function is reliable, but the installation process becomes complicated

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

Solution Approach 1:

By consolidating multiple locking components into one integrated locking body, the installation process is simplified from assembling multiple separate parts to installing a single pre-integrated unit. The locking body arrives as a complete assembly with all locking, positioning, and adjustment features already combined, reducing installation steps and potential assembly errors while maintaining reliable locking function.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If existing locking devices are designed in arc shape to accommodate curved LED screens, then the adaptability improves, but the installation space requirement increases and the overall thickness increases

Engineering Contradiction:
Improvearc screen adaptabilityVSAvoidinstallation space
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The locking body incorporates a rotatable locking head that can dynamically adjust its orientation and position. This rotational capability allows the locking mechanism to adapt to different arc radii and angles without requiring a fixed arc-shaped structure. The locking head can be rotated to match the specific curvature requirements of the LED screen, providing adaptability while maintaining a compact, space-efficient design.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The locking device uses adjustable parameters including the rotation angle of the locking head and the engagement depth of the bevels to accommodate different arc configurations. By changing these parameters rather than requiring different physical shapes for different arcs, the device achieves versatility while maintaining a consistent compact form factor that minimizes installation space and thickness.

Inventive Principle:
Principle #35Parameter changes

4Volume of stationary object

If existing locking devices position the locking mechanism far from the display surface to accommodate large size, then the internal space is sufficient, but the overall thickness of the LED screen increases

Engineering Contradiction:
Improveinternal spaceVSAvoidscreen thickness
Core Design Contradiction:
Volume of stationary objectVSLength of stationary object

Solution Approach 1:

The locking body is designed with a nested structure where the locking head rotates within the confines of the main body, and the bevels are integrated into the locking head itself. This nesting allows the locking mechanism to achieve its full functional range of motion and locking capacity within a compact envelope, positioning the locking mechanism close to the display surface without requiring excessive internal space or increasing overall screen thickness.

Inventive Principle:
Principle #7Nested doll (Nesting)

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

The locking device simplifies the splicing process, enhances the accuracy of LED display screen connections, reduces the overall size and thickness of the screen, and facilitates easier installation by allowing for precise adjustment of connection angles and efficient arc splicing.

Implementation Method 1

a spring lock (22) arranged on the fixed base (21)

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

the thread groove (111) and external thread (125) are matched to threadedly connect the angle rotating disc base (11) and angle rotating disc (12)

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP3995710B1Locking device
Publication Date: 2025.03.26 SHENZHEN GLOSHINE TECH
  • EP3995710B1 patent drawingFigure 1~2
  • EP3995710B1 patent drawingFigure 3~4
  • EP3995710B1 patent drawingFigure 5~6

AI summary

Provided is a locking device, comprising a first lock body and a second lock body; the first lock body comprises an angle rotating disc base (11), an angle rotating disc (12) and a lock plate (13), the angle rotating disc (12) can rotate around its own axis and the angle rotating disc base (11) has a first mounting surface; the second lock body comprises a fixed base (21) and a spring lock (22), the fixed base (21) is provided with a second mounting surface, and a limit surface facing one end face of the angle rotating disc (12); one end face of the angle rotating disc (12) facing the limit surface is provided with a plurality of bevels (121) at intervals along circumferential direction; rotating the angle rotating disc (12) can make the limit surface fit with different bevels (121) to adjust the included angle between the first mounting surface (114) and the second mounting surface (213). The spring lock (22)and lock plate (13) can be mutually locked to fix the first lock body (1) and the second lock body (2) temporarily. The locking device has simple structure, reduces the splicing difficulty of LED display screens and is convenient to install.