Adjustable mounting mechanism for double-wall drawer slide

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Solution Overview

Problem

Traditional drawer mounting mechanisms are complex, leading to installation position deviations, reduced assembly accuracy, instability, and poor use effects, particularly affecting buffer and pressing slide rails, with large operational forces and increased gaps causing oscillation and jamming.

Innovation Solution

An adjustable mounting mechanism with a front end adjusting component, rear end adaptive component, and horizontal adjusting component, featuring a simple structure for quick assembly and disassembly, allowing precise adjustment of longitudinal and horizontal positions, enhancing stability and assembly accuracy through elastic connections and rotational controls.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a traditional mounting mechanism with fixed seat, adjusting seat and buckle is used, then the drawer and slide rail can be connected, but the structure becomes complex causing installation position deviation and poor assembly accuracy

Engineering Contradiction:
Improveassembly accuracyVSAvoidmounting mechanism structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The mounting mechanism is divided into independent functional modules: a positioning module with positioning protrusions and grooves for precise location, an adjusting module with threaded rods and nuts for position adjustment, and a locking module with cam-shaped locking pieces for secure fastening. This segmentation allows each module to perform its specific function efficiently while simplifying the overall structure and improving assembly accuracy.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The mounting mechanism incorporates self-aligning features where positioning protrusions automatically guide the components into correct positions during assembly, and self-locking features where cam-shaped locking pieces automatically secure the adjusted positions without requiring additional operations. This self-service capability eliminates the need for complex alignment procedures and reduces installation position deviations.

Inventive Principle:
Principle #25Self-service

2Adaptability or versatility

If the longitudinal positions of movable rail and fixed rail are adjusted to change drawer position, then the drawer installation position can be adjusted, but the cushioning distance and effect of the slide rail are reduced

Engineering Contradiction:
Improvedrawer position adjustmentVSAvoidcushioning effect
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

Instead of adjusting the longitudinal positions of the movable and fixed rails, the invention introduces a transverse dimension for adjustment by positioning the drawer front plate at different distances from the cabinet front surface. This is achieved through adjustable mounting brackets that can be positioned at multiple locations along the slide rail, allowing drawer position adjustment without affecting the cushioning distance between the rails.

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

Solution Approach 2:

The mounting mechanism is separated into a fixed rail assembly that maintains the cushioning function, and an adjustable mounting bracket assembly that provides position flexibility. The mounting bracket can be independently adjusted along the fixed rail without moving the rail components themselves, thus preserving the cushioning effect while achieving position adaptability.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If the gap between movable rail and fixed rail is adjusted to change mounting mechanism gap, then the drawer position can be adjusted, but the gap between tail hook and drawer increases or becomes too tight causing oscillation and jamming

Engineering Contradiction:
Improvemounting gap adjustmentVSAvoiddrawer stability
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The mounting mechanism uses localized adjustment features at specific points rather than global gap adjustments. Positioning protrusions and grooves are provided at multiple discrete locations, allowing selective engagement at the optimal position. This localized approach ensures that the gap between the tail hook and drawer remains within the optimal range, preventing both excessive gaps that cause oscillation and too-tight gaps that cause jamming.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The invention replaces the traditional mechanical gap adjustment system with a positioning system based on geometric fitting between protrusions and grooves. This substitution eliminates the need for continuous gap adjustment and provides discrete, pre-determined optimal positions that maintain stable drawer operation without oscillation or jamming.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

4Ease of operation

If a rotary buckle is used to remove the slide rail from the drawer, then the connection can be released, but the operation force is large

Engineering Contradiction:
Improvedisassembly operationVSAvoidoperation force
Core Design Contradiction:
Ease of operationVSForce

Solution Approach 1:

The locking function is extracted from the connection structure and implemented as a separate cam-shaped locking piece that can be independently actuated. The locking piece engages with a locking groove to secure the connection, and can be easily released by pushing a releasing button that disengages the cam mechanism. This separation allows the connection to be secured with minimal force during assembly, while providing easy release without requiring large operational force.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

A cam-shaped locking piece acts as an intermediary between the mounting components, providing both secure locking and easy release functions. The cam mechanism amplifies small operational forces during locking while allowing easy release through a button-actuated disengagement mechanism, thus reducing the operation force required compared to direct rotary buckles.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 mechanism improves assembly accuracy, structural stability, and operational smoothness by adjusting gaps and positions, preventing jamming and ensuring tight closure, with easy operation and reduced noise.

Implementation Method 1

the elastic movable frame is adaptively and slidably installed on the fixed frame to slide along with the front adjusting module assembly

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

the handle module assembly is rotatably connected to the front adjusting module assembly and locked to the slide rail under self elasticity

Methodology Applied
Scientific EffectSelf-elasticity: Elasticity

Data Source

PatentEP4696193A1Adjustable mounting mechanism for double-wall drawer slide
Publication Date: 2026.02.18 GUANGDONG HEGU HARDWARE PRECISION MFG CO LTD
  • EP4696193A1 patent drawingFigure 1
  • EP4696193A1 patent drawingFigure 2
  • EP4696193A1 patent drawingFigure 3

AI summary

The present invention provides an adjustable mounting mechanism for a soft closing drawer, comprising a horizontal adjusting component, a front end adjusting component comprises a front adjusting shell, a front adjusting module assembly and a handle module assembly, a rear end adaptive component comprises a fixed frame and an elastic movable frame, the front adjusting shell is installed on a front end of a bottom plate of a soft closing drawer, the front adjusting module assembly is installed on the front adjusting shell in a mode of sliding front and back, the handle module assembly is rotatably connected to the front adjusting module assembly, the horizontal adjusting component is installed in a side wall of the soft closing drawer, the fixed frame is sheathed on one end of the slide rail. The present invention provides high structural stability, and ensures use effect of the drawer.