Wall Connection Box Locking Structure for Adjustable Functional Surfaces

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Solution Overview

Problem

Existing wall-mounted junction box units lack flexibility in securing the functional surface body at different axial heights, which affects their installation and assembly efficiency and cost-effectiveness.

Innovation Solution

A wall-mounted junction box unit with a connecting device that allows the functional surface body to be selectively secured in front of or behind the base section, featuring a rotatable connecting body with an actuation interface on the functional surface body's side, enabling easy adjustment and secure attachment at various axial positions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the functional surface body is secured to the base section at fixed axial heights, then the structural simplicity is maintained, but the adaptability and flexibility are reduced

Engineering Contradiction:
Improveflexibility in securing functional surface bodyVSAvoidcomplexity of connecting device
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The connecting body is designed to be rotatable between a securing position and a release position, enabling dynamic adjustment of the functional surface body to different axial heights on the base section. This rotational mechanism provides adaptability while maintaining a relatively simple device structure.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The connecting device with its rotatable connecting body can secure the functional surface body at multiple axial positions, making it a multi-functional solution that replaces the need for multiple fixed-position attachment mechanisms. This universal design enhances adaptability without proportionally increasing complexity.

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

2Ease of operation

If the connecting body is positioned on the base section side, then the securing strength is improved, but the ease of operation is reduced due to limited accessibility

Engineering Contradiction:
Improveaccessibility of actuation interfaceVSAvoidsecuring strength of connection
Core Design Contradiction:
Ease of operationVSStrength

Solution Approach 1:

The actuation interface is positioned on the functional surface body side rather than the base section side, changing the spatial dimension of access. This allows users to operate the connecting device from the front/side where the functional surface body is located, improving accessibility and ease of operation while maintaining securing strength through the rotational locking mechanism.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP4254695B1Connection box unit built in to a wall with functional area body
Publication Date: 2025.08.27 HANS GROHE GMBH & CO KG
  • EP4254695B1 patent drawingFigure 1~2
  • EP4254695B1 patent drawingFigure 3~4
  • EP4254695B1 patent drawingFigure 5~10

AI summary

2.1. The invention relates to a wall-mounted connection box unit comprising a box housing body (1) with a rear base section (2) and a sleeve section (3) projecting forward from the base section, which circumferentially surrounds a sanitary component receiving space (4) accessible via an open front end (5) of the sleeve section, a functional surface body (7) having a functional surface (6) and a connecting device (8) configured for releasably fixing the functional surface body to the base section at different axial heights of the functional surface and comprising at least one connecting structure (9) on the base section radially outside the sleeve section and a connecting body (10) cooperating with the connecting structure.which is movably arranged relative to the connection structure and the functional surface body between a release position (12) and a locking position (13) via an actuating interface (11). 2.2. According to the invention, the connection device (8) is configured for selectively releasably locking the functional surface body (7) in front of a front (2a) or behind a rear (2b) of the base section (2) of the box housing body (1). 2.3. Use in sanitary and electrical installation technology.